3
4/*
5 * Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org>
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20#include <sys/param.h>
21#include <sys/systm.h>
22#include <sys/kernel.h>
23#include <sys/endian.h>
24#include <sys/firmware.h>
25#include <sys/linker.h>
26#include <sys/mbuf.h>
27#include <sys/malloc.h>
28#include <sys/module.h>
29#include <sys/socket.h>
30#include <sys/sockio.h>
31#include <sys/sysctl.h>
32
33#include <net/if.h>
34#include <net/if_var.h>
35#include <net/if_arp.h>
36#include <net/ethernet.h>
37#include <net/if_dl.h>
38#include <net/if_media.h>
39#include <net/if_types.h>
40
41#include <sys/bus.h>
42#include <machine/bus.h>
43
44#include <net80211/ieee80211_var.h>
45#include <net80211/ieee80211_phy.h>
46#include <net80211/ieee80211_radiotap.h>
47#include <net80211/ieee80211_regdomain.h>
48
49#include <net/bpf.h>
50
51#include <dev/usb/usb.h>
52#include <dev/usb/usbdi.h>
53#include "usbdevs.h"
54
55#include <dev/usb/wlan/if_upgtvar.h>
56
57/*
58 * Driver for the USB PrismGT devices.
59 *
60 * For now just USB 2.0 devices with the GW3887 chipset are supported.
61 * The driver has been written based on the firmware version 2.13.1.0_LM87.
62 *
63 * TODO's:
64 * - MONITOR mode test.
65 * - Add HOSTAP mode.
66 * - Add IBSS mode.
67 * - Support the USB 1.0 devices (NET2280, ISL3880, ISL3886 chipsets).
68 *
69 * Parts of this driver has been influenced by reading the p54u driver
70 * written by Jean-Baptiste Note <jean-baptiste.note@m4x.org> and
71 * Sebastien Bourdeauducq <lekernel@prism54.org>.
72 */
73
74static SYSCTL_NODE(_hw, OID_AUTO, upgt, CTLFLAG_RD, 0,
75 "USB PrismGT GW3887 driver parameters");
76
77#ifdef UPGT_DEBUG
78int upgt_debug = 0;
79SYSCTL_INT(_hw_upgt, OID_AUTO, debug, CTLFLAG_RWTUN, &upgt_debug,
80 0, "control debugging printfs");
81enum {
82 UPGT_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
83 UPGT_DEBUG_RECV = 0x00000002, /* basic recv operation */
84 UPGT_DEBUG_RESET = 0x00000004, /* reset processing */
85 UPGT_DEBUG_INTR = 0x00000008, /* INTR */
86 UPGT_DEBUG_TX_PROC = 0x00000010, /* tx ISR proc */
87 UPGT_DEBUG_RX_PROC = 0x00000020, /* rx ISR proc */
88 UPGT_DEBUG_STATE = 0x00000040, /* 802.11 state transitions */
89 UPGT_DEBUG_STAT = 0x00000080, /* statistic */
90 UPGT_DEBUG_FW = 0x00000100, /* firmware */
91 UPGT_DEBUG_ANY = 0xffffffff
92};
93#define DPRINTF(sc, m, fmt, ...) do { \
94 if (sc->sc_debug & (m)) \
95 printf(fmt, __VA_ARGS__); \
96} while (0)
97#else
98#define DPRINTF(sc, m, fmt, ...) do { \
99 (void) sc; \
100} while (0)
101#endif
102
103/*
104 * Prototypes.
105 */
106static device_probe_t upgt_match;
107static device_attach_t upgt_attach;
108static device_detach_t upgt_detach;
109static int upgt_alloc_tx(struct upgt_softc *);
110static int upgt_alloc_rx(struct upgt_softc *);
111static int upgt_device_reset(struct upgt_softc *);
112static void upgt_bulk_tx(struct upgt_softc *, struct upgt_data *);
113static int upgt_fw_verify(struct upgt_softc *);
114static int upgt_mem_init(struct upgt_softc *);
115static int upgt_fw_load(struct upgt_softc *);
116static int upgt_fw_copy(const uint8_t *, char *, int);
117static uint32_t upgt_crc32_le(const void *, size_t);
118static struct mbuf *
119 upgt_rxeof(struct usb_xfer *, struct upgt_data *, int *);
120static struct mbuf *
121 upgt_rx(struct upgt_softc *, uint8_t *, int, int *);
122static void upgt_txeof(struct usb_xfer *, struct upgt_data *);
123static int upgt_eeprom_read(struct upgt_softc *);
124static int upgt_eeprom_parse(struct upgt_softc *);
125static void upgt_eeprom_parse_hwrx(struct upgt_softc *, uint8_t *);
126static void upgt_eeprom_parse_freq3(struct upgt_softc *, uint8_t *, int);
127static void upgt_eeprom_parse_freq4(struct upgt_softc *, uint8_t *, int);
128static void upgt_eeprom_parse_freq6(struct upgt_softc *, uint8_t *, int);
129static uint32_t upgt_chksum_le(const uint32_t *, size_t);
130static void upgt_tx_done(struct upgt_softc *, uint8_t *);
131static void upgt_init(struct upgt_softc *);
132static void upgt_parent(struct ieee80211com *);
133static int upgt_transmit(struct ieee80211com *, struct mbuf *);
134static void upgt_start(struct upgt_softc *);
135static int upgt_raw_xmit(struct ieee80211_node *, struct mbuf *,
136 const struct ieee80211_bpf_params *);
137static void upgt_scan_start(struct ieee80211com *);
138static void upgt_scan_end(struct ieee80211com *);
139static void upgt_set_channel(struct ieee80211com *);
140static struct ieee80211vap *upgt_vap_create(struct ieee80211com *,
141 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
142 const uint8_t [IEEE80211_ADDR_LEN],
143 const uint8_t [IEEE80211_ADDR_LEN]);
144static void upgt_vap_delete(struct ieee80211vap *);
145static void upgt_update_mcast(struct ieee80211com *);
146static uint8_t upgt_rx_rate(struct upgt_softc *, const int);
147static void upgt_set_multi(void *);
148static void upgt_stop(struct upgt_softc *);
149static void upgt_setup_rates(struct ieee80211vap *, struct ieee80211com *);
150static int upgt_set_macfilter(struct upgt_softc *, uint8_t);
151static int upgt_newstate(struct ieee80211vap *, enum ieee80211_state, int);
152static void upgt_set_chan(struct upgt_softc *, struct ieee80211_channel *);
153static void upgt_set_led(struct upgt_softc *, int);
154static void upgt_set_led_blink(void *);
155static void upgt_get_stats(struct upgt_softc *);
156static void upgt_mem_free(struct upgt_softc *, uint32_t);
157static uint32_t upgt_mem_alloc(struct upgt_softc *);
158static void upgt_free_tx(struct upgt_softc *);
159static void upgt_free_rx(struct upgt_softc *);
160static void upgt_watchdog(void *);
161static void upgt_abort_xfers(struct upgt_softc *);
162static void upgt_abort_xfers_locked(struct upgt_softc *);
163static void upgt_sysctl_node(struct upgt_softc *);
164static struct upgt_data *
165 upgt_getbuf(struct upgt_softc *);
166static struct upgt_data *
167 upgt_gettxbuf(struct upgt_softc *);
168static int upgt_tx_start(struct upgt_softc *, struct mbuf *,
169 struct ieee80211_node *, struct upgt_data *);
170
171static const char *upgt_fwname = "upgt-gw3887";
172
173static const STRUCT_USB_HOST_ID upgt_devs[] = {
174#define UPGT_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
175 /* version 2 devices */
176 UPGT_DEV(ACCTON, PRISM_GT),
177 UPGT_DEV(BELKIN, F5D7050),
178 UPGT_DEV(CISCOLINKSYS, WUSB54AG),
179 UPGT_DEV(CONCEPTRONIC, PRISM_GT),
180 UPGT_DEV(DELL, PRISM_GT_1),
181 UPGT_DEV(DELL, PRISM_GT_2),
182 UPGT_DEV(FSC, E5400),
183 UPGT_DEV(GLOBESPAN, PRISM_GT_1),
184 UPGT_DEV(GLOBESPAN, PRISM_GT_2),
185 UPGT_DEV(NETGEAR, WG111V1_2),
186 UPGT_DEV(INTERSIL, PRISM_GT),
187 UPGT_DEV(SMC, 2862WG),
188 UPGT_DEV(USR, USR5422),
189 UPGT_DEV(WISTRONNEWEB, UR045G),
190 UPGT_DEV(XYRATEX, PRISM_GT_1),
191 UPGT_DEV(XYRATEX, PRISM_GT_2),
192 UPGT_DEV(ZCOM, XG703A),
193 UPGT_DEV(ZCOM, XM142)
194};
195
196static usb_callback_t upgt_bulk_rx_callback;
197static usb_callback_t upgt_bulk_tx_callback;
198
199static const struct usb_config upgt_config[UPGT_N_XFERS] = {
200 [UPGT_BULK_TX] = {
201 .type = UE_BULK,
202 .endpoint = UE_ADDR_ANY,
203 .direction = UE_DIR_OUT,
204 .bufsize = MCLBYTES * UPGT_TX_MAXCOUNT,
205 .flags = {
206 .force_short_xfer = 1,
207 .pipe_bof = 1
208 },
209 .callback = upgt_bulk_tx_callback,
210 .timeout = UPGT_USB_TIMEOUT, /* ms */
211 },
212 [UPGT_BULK_RX] = {
213 .type = UE_BULK,
214 .endpoint = UE_ADDR_ANY,
215 .direction = UE_DIR_IN,
216 .bufsize = MCLBYTES * UPGT_RX_MAXCOUNT,
217 .flags = {
218 .pipe_bof = 1,
219 .short_xfer_ok = 1
220 },
221 .callback = upgt_bulk_rx_callback,
222 },
223};
224
225static int
226upgt_match(device_t dev)
227{
228 struct usb_attach_arg *uaa = device_get_ivars(dev);
229
230 if (uaa->usb_mode != USB_MODE_HOST)
231 return (ENXIO);
232 if (uaa->info.bConfigIndex != UPGT_CONFIG_INDEX)
233 return (ENXIO);
234 if (uaa->info.bIfaceIndex != UPGT_IFACE_INDEX)
235 return (ENXIO);
236
237 return (usbd_lookup_id_by_uaa(upgt_devs, sizeof(upgt_devs), uaa));
238}
239
240static int
241upgt_attach(device_t dev)
242{
243 struct upgt_softc *sc = device_get_softc(dev);
244 struct ieee80211com *ic = &sc->sc_ic;
245 struct usb_attach_arg *uaa = device_get_ivars(dev);
| 3
4/*
5 * Copyright (c) 2007 Marcus Glocker <mglocker@openbsd.org>
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20#include <sys/param.h>
21#include <sys/systm.h>
22#include <sys/kernel.h>
23#include <sys/endian.h>
24#include <sys/firmware.h>
25#include <sys/linker.h>
26#include <sys/mbuf.h>
27#include <sys/malloc.h>
28#include <sys/module.h>
29#include <sys/socket.h>
30#include <sys/sockio.h>
31#include <sys/sysctl.h>
32
33#include <net/if.h>
34#include <net/if_var.h>
35#include <net/if_arp.h>
36#include <net/ethernet.h>
37#include <net/if_dl.h>
38#include <net/if_media.h>
39#include <net/if_types.h>
40
41#include <sys/bus.h>
42#include <machine/bus.h>
43
44#include <net80211/ieee80211_var.h>
45#include <net80211/ieee80211_phy.h>
46#include <net80211/ieee80211_radiotap.h>
47#include <net80211/ieee80211_regdomain.h>
48
49#include <net/bpf.h>
50
51#include <dev/usb/usb.h>
52#include <dev/usb/usbdi.h>
53#include "usbdevs.h"
54
55#include <dev/usb/wlan/if_upgtvar.h>
56
57/*
58 * Driver for the USB PrismGT devices.
59 *
60 * For now just USB 2.0 devices with the GW3887 chipset are supported.
61 * The driver has been written based on the firmware version 2.13.1.0_LM87.
62 *
63 * TODO's:
64 * - MONITOR mode test.
65 * - Add HOSTAP mode.
66 * - Add IBSS mode.
67 * - Support the USB 1.0 devices (NET2280, ISL3880, ISL3886 chipsets).
68 *
69 * Parts of this driver has been influenced by reading the p54u driver
70 * written by Jean-Baptiste Note <jean-baptiste.note@m4x.org> and
71 * Sebastien Bourdeauducq <lekernel@prism54.org>.
72 */
73
74static SYSCTL_NODE(_hw, OID_AUTO, upgt, CTLFLAG_RD, 0,
75 "USB PrismGT GW3887 driver parameters");
76
77#ifdef UPGT_DEBUG
78int upgt_debug = 0;
79SYSCTL_INT(_hw_upgt, OID_AUTO, debug, CTLFLAG_RWTUN, &upgt_debug,
80 0, "control debugging printfs");
81enum {
82 UPGT_DEBUG_XMIT = 0x00000001, /* basic xmit operation */
83 UPGT_DEBUG_RECV = 0x00000002, /* basic recv operation */
84 UPGT_DEBUG_RESET = 0x00000004, /* reset processing */
85 UPGT_DEBUG_INTR = 0x00000008, /* INTR */
86 UPGT_DEBUG_TX_PROC = 0x00000010, /* tx ISR proc */
87 UPGT_DEBUG_RX_PROC = 0x00000020, /* rx ISR proc */
88 UPGT_DEBUG_STATE = 0x00000040, /* 802.11 state transitions */
89 UPGT_DEBUG_STAT = 0x00000080, /* statistic */
90 UPGT_DEBUG_FW = 0x00000100, /* firmware */
91 UPGT_DEBUG_ANY = 0xffffffff
92};
93#define DPRINTF(sc, m, fmt, ...) do { \
94 if (sc->sc_debug & (m)) \
95 printf(fmt, __VA_ARGS__); \
96} while (0)
97#else
98#define DPRINTF(sc, m, fmt, ...) do { \
99 (void) sc; \
100} while (0)
101#endif
102
103/*
104 * Prototypes.
105 */
106static device_probe_t upgt_match;
107static device_attach_t upgt_attach;
108static device_detach_t upgt_detach;
109static int upgt_alloc_tx(struct upgt_softc *);
110static int upgt_alloc_rx(struct upgt_softc *);
111static int upgt_device_reset(struct upgt_softc *);
112static void upgt_bulk_tx(struct upgt_softc *, struct upgt_data *);
113static int upgt_fw_verify(struct upgt_softc *);
114static int upgt_mem_init(struct upgt_softc *);
115static int upgt_fw_load(struct upgt_softc *);
116static int upgt_fw_copy(const uint8_t *, char *, int);
117static uint32_t upgt_crc32_le(const void *, size_t);
118static struct mbuf *
119 upgt_rxeof(struct usb_xfer *, struct upgt_data *, int *);
120static struct mbuf *
121 upgt_rx(struct upgt_softc *, uint8_t *, int, int *);
122static void upgt_txeof(struct usb_xfer *, struct upgt_data *);
123static int upgt_eeprom_read(struct upgt_softc *);
124static int upgt_eeprom_parse(struct upgt_softc *);
125static void upgt_eeprom_parse_hwrx(struct upgt_softc *, uint8_t *);
126static void upgt_eeprom_parse_freq3(struct upgt_softc *, uint8_t *, int);
127static void upgt_eeprom_parse_freq4(struct upgt_softc *, uint8_t *, int);
128static void upgt_eeprom_parse_freq6(struct upgt_softc *, uint8_t *, int);
129static uint32_t upgt_chksum_le(const uint32_t *, size_t);
130static void upgt_tx_done(struct upgt_softc *, uint8_t *);
131static void upgt_init(struct upgt_softc *);
132static void upgt_parent(struct ieee80211com *);
133static int upgt_transmit(struct ieee80211com *, struct mbuf *);
134static void upgt_start(struct upgt_softc *);
135static int upgt_raw_xmit(struct ieee80211_node *, struct mbuf *,
136 const struct ieee80211_bpf_params *);
137static void upgt_scan_start(struct ieee80211com *);
138static void upgt_scan_end(struct ieee80211com *);
139static void upgt_set_channel(struct ieee80211com *);
140static struct ieee80211vap *upgt_vap_create(struct ieee80211com *,
141 const char [IFNAMSIZ], int, enum ieee80211_opmode, int,
142 const uint8_t [IEEE80211_ADDR_LEN],
143 const uint8_t [IEEE80211_ADDR_LEN]);
144static void upgt_vap_delete(struct ieee80211vap *);
145static void upgt_update_mcast(struct ieee80211com *);
146static uint8_t upgt_rx_rate(struct upgt_softc *, const int);
147static void upgt_set_multi(void *);
148static void upgt_stop(struct upgt_softc *);
149static void upgt_setup_rates(struct ieee80211vap *, struct ieee80211com *);
150static int upgt_set_macfilter(struct upgt_softc *, uint8_t);
151static int upgt_newstate(struct ieee80211vap *, enum ieee80211_state, int);
152static void upgt_set_chan(struct upgt_softc *, struct ieee80211_channel *);
153static void upgt_set_led(struct upgt_softc *, int);
154static void upgt_set_led_blink(void *);
155static void upgt_get_stats(struct upgt_softc *);
156static void upgt_mem_free(struct upgt_softc *, uint32_t);
157static uint32_t upgt_mem_alloc(struct upgt_softc *);
158static void upgt_free_tx(struct upgt_softc *);
159static void upgt_free_rx(struct upgt_softc *);
160static void upgt_watchdog(void *);
161static void upgt_abort_xfers(struct upgt_softc *);
162static void upgt_abort_xfers_locked(struct upgt_softc *);
163static void upgt_sysctl_node(struct upgt_softc *);
164static struct upgt_data *
165 upgt_getbuf(struct upgt_softc *);
166static struct upgt_data *
167 upgt_gettxbuf(struct upgt_softc *);
168static int upgt_tx_start(struct upgt_softc *, struct mbuf *,
169 struct ieee80211_node *, struct upgt_data *);
170
171static const char *upgt_fwname = "upgt-gw3887";
172
173static const STRUCT_USB_HOST_ID upgt_devs[] = {
174#define UPGT_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
175 /* version 2 devices */
176 UPGT_DEV(ACCTON, PRISM_GT),
177 UPGT_DEV(BELKIN, F5D7050),
178 UPGT_DEV(CISCOLINKSYS, WUSB54AG),
179 UPGT_DEV(CONCEPTRONIC, PRISM_GT),
180 UPGT_DEV(DELL, PRISM_GT_1),
181 UPGT_DEV(DELL, PRISM_GT_2),
182 UPGT_DEV(FSC, E5400),
183 UPGT_DEV(GLOBESPAN, PRISM_GT_1),
184 UPGT_DEV(GLOBESPAN, PRISM_GT_2),
185 UPGT_DEV(NETGEAR, WG111V1_2),
186 UPGT_DEV(INTERSIL, PRISM_GT),
187 UPGT_DEV(SMC, 2862WG),
188 UPGT_DEV(USR, USR5422),
189 UPGT_DEV(WISTRONNEWEB, UR045G),
190 UPGT_DEV(XYRATEX, PRISM_GT_1),
191 UPGT_DEV(XYRATEX, PRISM_GT_2),
192 UPGT_DEV(ZCOM, XG703A),
193 UPGT_DEV(ZCOM, XM142)
194};
195
196static usb_callback_t upgt_bulk_rx_callback;
197static usb_callback_t upgt_bulk_tx_callback;
198
199static const struct usb_config upgt_config[UPGT_N_XFERS] = {
200 [UPGT_BULK_TX] = {
201 .type = UE_BULK,
202 .endpoint = UE_ADDR_ANY,
203 .direction = UE_DIR_OUT,
204 .bufsize = MCLBYTES * UPGT_TX_MAXCOUNT,
205 .flags = {
206 .force_short_xfer = 1,
207 .pipe_bof = 1
208 },
209 .callback = upgt_bulk_tx_callback,
210 .timeout = UPGT_USB_TIMEOUT, /* ms */
211 },
212 [UPGT_BULK_RX] = {
213 .type = UE_BULK,
214 .endpoint = UE_ADDR_ANY,
215 .direction = UE_DIR_IN,
216 .bufsize = MCLBYTES * UPGT_RX_MAXCOUNT,
217 .flags = {
218 .pipe_bof = 1,
219 .short_xfer_ok = 1
220 },
221 .callback = upgt_bulk_rx_callback,
222 },
223};
224
225static int
226upgt_match(device_t dev)
227{
228 struct usb_attach_arg *uaa = device_get_ivars(dev);
229
230 if (uaa->usb_mode != USB_MODE_HOST)
231 return (ENXIO);
232 if (uaa->info.bConfigIndex != UPGT_CONFIG_INDEX)
233 return (ENXIO);
234 if (uaa->info.bIfaceIndex != UPGT_IFACE_INDEX)
235 return (ENXIO);
236
237 return (usbd_lookup_id_by_uaa(upgt_devs, sizeof(upgt_devs), uaa));
238}
239
240static int
241upgt_attach(device_t dev)
242{
243 struct upgt_softc *sc = device_get_softc(dev);
244 struct ieee80211com *ic = &sc->sc_ic;
245 struct usb_attach_arg *uaa = device_get_ivars(dev);
|
247 uint8_t iface_index = UPGT_IFACE_INDEX;
248 int error;
249
250 sc->sc_dev = dev;
251 sc->sc_udev = uaa->device;
252#ifdef UPGT_DEBUG
253 sc->sc_debug = upgt_debug;
254#endif
255 device_set_usb_desc(dev);
256
257 mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev), MTX_NETWORK_LOCK,
258 MTX_DEF);
259 callout_init(&sc->sc_led_ch, 0);
260 callout_init(&sc->sc_watchdog_ch, 0);
261 mbufq_init(&sc->sc_snd, ifqmaxlen);
262
263 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer,
264 upgt_config, UPGT_N_XFERS, sc, &sc->sc_mtx);
265 if (error) {
266 device_printf(dev, "could not allocate USB transfers, "
267 "err=%s\n", usbd_errstr(error));
268 goto fail1;
269 }
270
271 sc->sc_rx_dma_buf = usbd_xfer_get_frame_buffer(
272 sc->sc_xfer[UPGT_BULK_RX], 0);
273 sc->sc_tx_dma_buf = usbd_xfer_get_frame_buffer(
274 sc->sc_xfer[UPGT_BULK_TX], 0);
275
276 /* Setup TX and RX buffers */
277 error = upgt_alloc_tx(sc);
278 if (error)
279 goto fail2;
280 error = upgt_alloc_rx(sc);
281 if (error)
282 goto fail3;
283
284 /* Initialize the device. */
285 error = upgt_device_reset(sc);
286 if (error)
287 goto fail4;
288 /* Verify the firmware. */
289 error = upgt_fw_verify(sc);
290 if (error)
291 goto fail4;
292 /* Calculate device memory space. */
293 if (sc->sc_memaddr_frame_start == 0 || sc->sc_memaddr_frame_end == 0) {
294 device_printf(dev,
295 "could not find memory space addresses on FW\n");
296 error = EIO;
297 goto fail4;
298 }
299 sc->sc_memaddr_frame_end -= UPGT_MEMSIZE_RX + 1;
300 sc->sc_memaddr_rx_start = sc->sc_memaddr_frame_end + 1;
301
302 DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame start=0x%08x\n",
303 sc->sc_memaddr_frame_start);
304 DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame end=0x%08x\n",
305 sc->sc_memaddr_frame_end);
306 DPRINTF(sc, UPGT_DEBUG_FW, "memory address rx start=0x%08x\n",
307 sc->sc_memaddr_rx_start);
308
309 upgt_mem_init(sc);
310
311 /* Load the firmware. */
312 error = upgt_fw_load(sc);
313 if (error)
314 goto fail4;
315
316 /* Read the whole EEPROM content and parse it. */
317 error = upgt_eeprom_read(sc);
318 if (error)
319 goto fail4;
320 error = upgt_eeprom_parse(sc);
321 if (error)
322 goto fail4;
323
324 /* all works related with the device have done here. */
325 upgt_abort_xfers(sc);
326
327 ic->ic_softc = sc;
328 ic->ic_name = device_get_nameunit(dev);
329 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
330 ic->ic_opmode = IEEE80211_M_STA;
331 /* set device capabilities */
332 ic->ic_caps =
333 IEEE80211_C_STA /* station mode */
334 | IEEE80211_C_MONITOR /* monitor mode */
335 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
336 | IEEE80211_C_SHSLOT /* short slot time supported */
337 | IEEE80211_C_BGSCAN /* capable of bg scanning */
338 | IEEE80211_C_WPA /* 802.11i */
339 ;
340
341 memset(bands, 0, sizeof(bands));
342 setbit(bands, IEEE80211_MODE_11B);
343 setbit(bands, IEEE80211_MODE_11G);
344 ieee80211_init_channels(ic, NULL, bands);
345
346 ieee80211_ifattach(ic);
347 ic->ic_raw_xmit = upgt_raw_xmit;
348 ic->ic_scan_start = upgt_scan_start;
349 ic->ic_scan_end = upgt_scan_end;
350 ic->ic_set_channel = upgt_set_channel;
351 ic->ic_vap_create = upgt_vap_create;
352 ic->ic_vap_delete = upgt_vap_delete;
353 ic->ic_update_mcast = upgt_update_mcast;
354 ic->ic_transmit = upgt_transmit;
355 ic->ic_parent = upgt_parent;
356
357 ieee80211_radiotap_attach(ic,
358 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
359 UPGT_TX_RADIOTAP_PRESENT,
360 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
361 UPGT_RX_RADIOTAP_PRESENT);
362
363 upgt_sysctl_node(sc);
364
365 if (bootverbose)
366 ieee80211_announce(ic);
367
368 return (0);
369
370fail4: upgt_free_rx(sc);
371fail3: upgt_free_tx(sc);
372fail2: usbd_transfer_unsetup(sc->sc_xfer, UPGT_N_XFERS);
373fail1: mtx_destroy(&sc->sc_mtx);
374
375 return (error);
376}
377
378static void
379upgt_txeof(struct usb_xfer *xfer, struct upgt_data *data)
380{
381
382 if (data->m) {
383 /* XXX status? */
384 ieee80211_tx_complete(data->ni, data->m, 0);
385 data->m = NULL;
386 data->ni = NULL;
387 }
388}
389
390static void
391upgt_get_stats(struct upgt_softc *sc)
392{
393 struct upgt_data *data_cmd;
394 struct upgt_lmac_mem *mem;
395 struct upgt_lmac_stats *stats;
396
397 data_cmd = upgt_getbuf(sc);
398 if (data_cmd == NULL) {
399 device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
400 return;
401 }
402
403 /*
404 * Transmit the URB containing the CMD data.
405 */
406 memset(data_cmd->buf, 0, MCLBYTES);
407
408 mem = (struct upgt_lmac_mem *)data_cmd->buf;
409 mem->addr = htole32(sc->sc_memaddr_frame_start +
410 UPGT_MEMSIZE_FRAME_HEAD);
411
412 stats = (struct upgt_lmac_stats *)(mem + 1);
413
414 stats->header1.flags = 0;
415 stats->header1.type = UPGT_H1_TYPE_CTRL;
416 stats->header1.len = htole16(
417 sizeof(struct upgt_lmac_stats) - sizeof(struct upgt_lmac_header));
418
419 stats->header2.reqid = htole32(sc->sc_memaddr_frame_start);
420 stats->header2.type = htole16(UPGT_H2_TYPE_STATS);
421 stats->header2.flags = 0;
422
423 data_cmd->buflen = sizeof(*mem) + sizeof(*stats);
424
425 mem->chksum = upgt_chksum_le((uint32_t *)stats,
426 data_cmd->buflen - sizeof(*mem));
427
428 upgt_bulk_tx(sc, data_cmd);
429}
430
431static void
432upgt_parent(struct ieee80211com *ic)
433{
434 struct upgt_softc *sc = ic->ic_softc;
435 int startall = 0;
436
437 UPGT_LOCK(sc);
438 if (sc->sc_flags & UPGT_FLAG_DETACHED) {
439 UPGT_UNLOCK(sc);
440 return;
441 }
442 if (ic->ic_nrunning > 0) {
443 if (sc->sc_flags & UPGT_FLAG_INITDONE) {
444 if (ic->ic_allmulti > 0 || ic->ic_promisc > 0)
445 upgt_set_multi(sc);
446 } else {
447 upgt_init(sc);
448 startall = 1;
449 }
450 } else if (sc->sc_flags & UPGT_FLAG_INITDONE)
451 upgt_stop(sc);
452 UPGT_UNLOCK(sc);
453 if (startall)
454 ieee80211_start_all(ic);
455}
456
457static void
458upgt_stop(struct upgt_softc *sc)
459{
460
461 UPGT_ASSERT_LOCKED(sc);
462
463 if (sc->sc_flags & UPGT_FLAG_INITDONE)
464 upgt_set_macfilter(sc, IEEE80211_S_INIT);
465 upgt_abort_xfers_locked(sc);
466 /* device down */
467 sc->sc_tx_timer = 0;
468 sc->sc_flags &= ~UPGT_FLAG_INITDONE;
469}
470
471static void
472upgt_set_led(struct upgt_softc *sc, int action)
473{
474 struct upgt_data *data_cmd;
475 struct upgt_lmac_mem *mem;
476 struct upgt_lmac_led *led;
477
478 data_cmd = upgt_getbuf(sc);
479 if (data_cmd == NULL) {
480 device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
481 return;
482 }
483
484 /*
485 * Transmit the URB containing the CMD data.
486 */
487 memset(data_cmd->buf, 0, MCLBYTES);
488
489 mem = (struct upgt_lmac_mem *)data_cmd->buf;
490 mem->addr = htole32(sc->sc_memaddr_frame_start +
491 UPGT_MEMSIZE_FRAME_HEAD);
492
493 led = (struct upgt_lmac_led *)(mem + 1);
494
495 led->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
496 led->header1.type = UPGT_H1_TYPE_CTRL;
497 led->header1.len = htole16(
498 sizeof(struct upgt_lmac_led) -
499 sizeof(struct upgt_lmac_header));
500
501 led->header2.reqid = htole32(sc->sc_memaddr_frame_start);
502 led->header2.type = htole16(UPGT_H2_TYPE_LED);
503 led->header2.flags = 0;
504
505 switch (action) {
506 case UPGT_LED_OFF:
507 led->mode = htole16(UPGT_LED_MODE_SET);
508 led->action_fix = 0;
509 led->action_tmp = htole16(UPGT_LED_ACTION_OFF);
510 led->action_tmp_dur = 0;
511 break;
512 case UPGT_LED_ON:
513 led->mode = htole16(UPGT_LED_MODE_SET);
514 led->action_fix = 0;
515 led->action_tmp = htole16(UPGT_LED_ACTION_ON);
516 led->action_tmp_dur = 0;
517 break;
518 case UPGT_LED_BLINK:
519 if (sc->sc_state != IEEE80211_S_RUN) {
520 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
521 return;
522 }
523 if (sc->sc_led_blink) {
524 /* previous blink was not finished */
525 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
526 return;
527 }
528 led->mode = htole16(UPGT_LED_MODE_SET);
529 led->action_fix = htole16(UPGT_LED_ACTION_OFF);
530 led->action_tmp = htole16(UPGT_LED_ACTION_ON);
531 led->action_tmp_dur = htole16(UPGT_LED_ACTION_TMP_DUR);
532 /* lock blink */
533 sc->sc_led_blink = 1;
534 callout_reset(&sc->sc_led_ch, hz, upgt_set_led_blink, sc);
535 break;
536 default:
537 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
538 return;
539 }
540
541 data_cmd->buflen = sizeof(*mem) + sizeof(*led);
542
543 mem->chksum = upgt_chksum_le((uint32_t *)led,
544 data_cmd->buflen - sizeof(*mem));
545
546 upgt_bulk_tx(sc, data_cmd);
547}
548
549static void
550upgt_set_led_blink(void *arg)
551{
552 struct upgt_softc *sc = arg;
553
554 /* blink finished, we are ready for a next one */
555 sc->sc_led_blink = 0;
556}
557
558static void
559upgt_init(struct upgt_softc *sc)
560{
561
562 UPGT_ASSERT_LOCKED(sc);
563
564 if (sc->sc_flags & UPGT_FLAG_INITDONE)
565 upgt_stop(sc);
566
567 usbd_transfer_start(sc->sc_xfer[UPGT_BULK_RX]);
568
569 (void)upgt_set_macfilter(sc, IEEE80211_S_SCAN);
570
571 sc->sc_flags |= UPGT_FLAG_INITDONE;
572
573 callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
574}
575
576static int
577upgt_set_macfilter(struct upgt_softc *sc, uint8_t state)
578{
579 struct ieee80211com *ic = &sc->sc_ic;
580 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
581 struct ieee80211_node *ni;
582 struct upgt_data *data_cmd;
583 struct upgt_lmac_mem *mem;
584 struct upgt_lmac_filter *filter;
585
586 UPGT_ASSERT_LOCKED(sc);
587
588 data_cmd = upgt_getbuf(sc);
589 if (data_cmd == NULL) {
590 device_printf(sc->sc_dev, "out of TX buffers.\n");
591 return (ENOBUFS);
592 }
593
594 /*
595 * Transmit the URB containing the CMD data.
596 */
597 memset(data_cmd->buf, 0, MCLBYTES);
598
599 mem = (struct upgt_lmac_mem *)data_cmd->buf;
600 mem->addr = htole32(sc->sc_memaddr_frame_start +
601 UPGT_MEMSIZE_FRAME_HEAD);
602
603 filter = (struct upgt_lmac_filter *)(mem + 1);
604
605 filter->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
606 filter->header1.type = UPGT_H1_TYPE_CTRL;
607 filter->header1.len = htole16(
608 sizeof(struct upgt_lmac_filter) -
609 sizeof(struct upgt_lmac_header));
610
611 filter->header2.reqid = htole32(sc->sc_memaddr_frame_start);
612 filter->header2.type = htole16(UPGT_H2_TYPE_MACFILTER);
613 filter->header2.flags = 0;
614
615 switch (state) {
616 case IEEE80211_S_INIT:
617 DPRINTF(sc, UPGT_DEBUG_STATE, "%s: set MAC filter to INIT\n",
618 __func__);
619 filter->type = htole16(UPGT_FILTER_TYPE_RESET);
620 break;
621 case IEEE80211_S_SCAN:
622 DPRINTF(sc, UPGT_DEBUG_STATE,
623 "set MAC filter to SCAN (bssid %s)\n",
624 ether_sprintf(ieee80211broadcastaddr));
625 filter->type = htole16(UPGT_FILTER_TYPE_NONE);
626 IEEE80211_ADDR_COPY(filter->dst,
627 vap ? vap->iv_myaddr : ic->ic_macaddr);
628 IEEE80211_ADDR_COPY(filter->src, ieee80211broadcastaddr);
629 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
630 filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
631 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
632 filter->rxhw = htole32(sc->sc_eeprom_hwrx);
633 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
634 break;
635 case IEEE80211_S_RUN:
636 ni = ieee80211_ref_node(vap->iv_bss);
637 /* XXX monitor mode isn't tested yet. */
638 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
639 filter->type = htole16(UPGT_FILTER_TYPE_MONITOR);
640 IEEE80211_ADDR_COPY(filter->dst,
641 vap ? vap->iv_myaddr : ic->ic_macaddr);
642 IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
643 filter->unknown1 = htole16(UPGT_FILTER_MONITOR_UNKNOWN1);
644 filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
645 filter->unknown2 = htole16(UPGT_FILTER_MONITOR_UNKNOWN2);
646 filter->rxhw = htole32(sc->sc_eeprom_hwrx);
647 filter->unknown3 = htole16(UPGT_FILTER_MONITOR_UNKNOWN3);
648 } else {
649 DPRINTF(sc, UPGT_DEBUG_STATE,
650 "set MAC filter to RUN (bssid %s)\n",
651 ether_sprintf(ni->ni_bssid));
652 filter->type = htole16(UPGT_FILTER_TYPE_STA);
653 IEEE80211_ADDR_COPY(filter->dst,
654 vap ? vap->iv_myaddr : ic->ic_macaddr);
655 IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
656 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
657 filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
658 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
659 filter->rxhw = htole32(sc->sc_eeprom_hwrx);
660 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
661 }
662 ieee80211_free_node(ni);
663 break;
664 default:
665 device_printf(sc->sc_dev,
666 "MAC filter does not know that state\n");
667 break;
668 }
669
670 data_cmd->buflen = sizeof(*mem) + sizeof(*filter);
671
672 mem->chksum = upgt_chksum_le((uint32_t *)filter,
673 data_cmd->buflen - sizeof(*mem));
674
675 upgt_bulk_tx(sc, data_cmd);
676
677 return (0);
678}
679
680static void
681upgt_setup_rates(struct ieee80211vap *vap, struct ieee80211com *ic)
682{
683 struct upgt_softc *sc = ic->ic_softc;
684 const struct ieee80211_txparam *tp;
685
686 /*
687 * 0x01 = OFMD6 0x10 = DS1
688 * 0x04 = OFDM9 0x11 = DS2
689 * 0x06 = OFDM12 0x12 = DS5
690 * 0x07 = OFDM18 0x13 = DS11
691 * 0x08 = OFDM24
692 * 0x09 = OFDM36
693 * 0x0a = OFDM48
694 * 0x0b = OFDM54
695 */
696 const uint8_t rateset_auto_11b[] =
697 { 0x13, 0x13, 0x12, 0x11, 0x11, 0x10, 0x10, 0x10 };
698 const uint8_t rateset_auto_11g[] =
699 { 0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06, 0x04, 0x01 };
700 const uint8_t rateset_fix_11bg[] =
701 { 0x10, 0x11, 0x12, 0x13, 0x01, 0x04, 0x06, 0x07,
702 0x08, 0x09, 0x0a, 0x0b };
703
704 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
705
706 /* XXX */
707 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
708 /*
709 * Automatic rate control is done by the device.
710 * We just pass the rateset from which the device
711 * will pickup a rate.
712 */
713 if (ic->ic_curmode == IEEE80211_MODE_11B)
714 memcpy(sc->sc_cur_rateset, rateset_auto_11b,
715 sizeof(sc->sc_cur_rateset));
716 if (ic->ic_curmode == IEEE80211_MODE_11G ||
717 ic->ic_curmode == IEEE80211_MODE_AUTO)
718 memcpy(sc->sc_cur_rateset, rateset_auto_11g,
719 sizeof(sc->sc_cur_rateset));
720 } else {
721 /* set a fixed rate */
722 memset(sc->sc_cur_rateset, rateset_fix_11bg[tp->ucastrate],
723 sizeof(sc->sc_cur_rateset));
724 }
725}
726
727static void
728upgt_set_multi(void *arg)
729{
730
731 /* XXX don't know how to set a device. Lack of docs. */
732}
733
734static int
735upgt_transmit(struct ieee80211com *ic, struct mbuf *m)
736{
737 struct upgt_softc *sc = ic->ic_softc;
738 int error;
739
740 UPGT_LOCK(sc);
741 if ((sc->sc_flags & UPGT_FLAG_INITDONE) == 0) {
742 UPGT_UNLOCK(sc);
743 return (ENXIO);
744 }
745 error = mbufq_enqueue(&sc->sc_snd, m);
746 if (error) {
747 UPGT_UNLOCK(sc);
748 return (error);
749 }
750 upgt_start(sc);
751 UPGT_UNLOCK(sc);
752
753 return (0);
754}
755
756static void
757upgt_start(struct upgt_softc *sc)
758{
759 struct upgt_data *data_tx;
760 struct ieee80211_node *ni;
761 struct mbuf *m;
762
763 UPGT_ASSERT_LOCKED(sc);
764
765 if ((sc->sc_flags & UPGT_FLAG_INITDONE) == 0)
766 return;
767
768 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
769 data_tx = upgt_gettxbuf(sc);
770 if (data_tx == NULL) {
771 mbufq_prepend(&sc->sc_snd, m);
772 break;
773 }
774
775 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
776 m->m_pkthdr.rcvif = NULL;
777
778 if (upgt_tx_start(sc, m, ni, data_tx) != 0) {
779 if_inc_counter(ni->ni_vap->iv_ifp,
780 IFCOUNTER_OERRORS, 1);
781 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, data_tx, next);
782 UPGT_STAT_INC(sc, st_tx_inactive);
783 ieee80211_free_node(ni);
784 continue;
785 }
786 sc->sc_tx_timer = 5;
787 }
788}
789
790static int
791upgt_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
792 const struct ieee80211_bpf_params *params)
793{
794 struct ieee80211com *ic = ni->ni_ic;
795 struct upgt_softc *sc = ic->ic_softc;
796 struct upgt_data *data_tx = NULL;
797
798 UPGT_LOCK(sc);
799 /* prevent management frames from being sent if we're not ready */
800 if (!(sc->sc_flags & UPGT_FLAG_INITDONE)) {
801 m_freem(m);
802 UPGT_UNLOCK(sc);
803 return ENETDOWN;
804 }
805
806 data_tx = upgt_gettxbuf(sc);
807 if (data_tx == NULL) {
808 m_freem(m);
809 UPGT_UNLOCK(sc);
810 return (ENOBUFS);
811 }
812
813 if (upgt_tx_start(sc, m, ni, data_tx) != 0) {
814 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, data_tx, next);
815 UPGT_STAT_INC(sc, st_tx_inactive);
816 UPGT_UNLOCK(sc);
817 return (EIO);
818 }
819 UPGT_UNLOCK(sc);
820
821 sc->sc_tx_timer = 5;
822 return (0);
823}
824
825static void
826upgt_watchdog(void *arg)
827{
828 struct upgt_softc *sc = arg;
829 struct ieee80211com *ic = &sc->sc_ic;
830
831 if (sc->sc_tx_timer > 0) {
832 if (--sc->sc_tx_timer == 0) {
833 device_printf(sc->sc_dev, "watchdog timeout\n");
834 /* upgt_init(sc); XXX needs a process context ? */
835 counter_u64_add(ic->ic_oerrors, 1);
836 return;
837 }
838 callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
839 }
840}
841
842static uint32_t
843upgt_mem_alloc(struct upgt_softc *sc)
844{
845 int i;
846
847 for (i = 0; i < sc->sc_memory.pages; i++) {
848 if (sc->sc_memory.page[i].used == 0) {
849 sc->sc_memory.page[i].used = 1;
850 return (sc->sc_memory.page[i].addr);
851 }
852 }
853
854 return (0);
855}
856
857static void
858upgt_scan_start(struct ieee80211com *ic)
859{
860 /* do nothing. */
861}
862
863static void
864upgt_scan_end(struct ieee80211com *ic)
865{
866 /* do nothing. */
867}
868
869static void
870upgt_set_channel(struct ieee80211com *ic)
871{
872 struct upgt_softc *sc = ic->ic_softc;
873
874 UPGT_LOCK(sc);
875 upgt_set_chan(sc, ic->ic_curchan);
876 UPGT_UNLOCK(sc);
877}
878
879static void
880upgt_set_chan(struct upgt_softc *sc, struct ieee80211_channel *c)
881{
882 struct ieee80211com *ic = &sc->sc_ic;
883 struct upgt_data *data_cmd;
884 struct upgt_lmac_mem *mem;
885 struct upgt_lmac_channel *chan;
886 int channel;
887
888 UPGT_ASSERT_LOCKED(sc);
889
890 channel = ieee80211_chan2ieee(ic, c);
891 if (channel == 0 || channel == IEEE80211_CHAN_ANY) {
892 /* XXX should NEVER happen */
893 device_printf(sc->sc_dev,
894 "%s: invalid channel %x\n", __func__, channel);
895 return;
896 }
897
898 DPRINTF(sc, UPGT_DEBUG_STATE, "%s: channel %d\n", __func__, channel);
899
900 data_cmd = upgt_getbuf(sc);
901 if (data_cmd == NULL) {
902 device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
903 return;
904 }
905 /*
906 * Transmit the URB containing the CMD data.
907 */
908 memset(data_cmd->buf, 0, MCLBYTES);
909
910 mem = (struct upgt_lmac_mem *)data_cmd->buf;
911 mem->addr = htole32(sc->sc_memaddr_frame_start +
912 UPGT_MEMSIZE_FRAME_HEAD);
913
914 chan = (struct upgt_lmac_channel *)(mem + 1);
915
916 chan->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
917 chan->header1.type = UPGT_H1_TYPE_CTRL;
918 chan->header1.len = htole16(
919 sizeof(struct upgt_lmac_channel) - sizeof(struct upgt_lmac_header));
920
921 chan->header2.reqid = htole32(sc->sc_memaddr_frame_start);
922 chan->header2.type = htole16(UPGT_H2_TYPE_CHANNEL);
923 chan->header2.flags = 0;
924
925 chan->unknown1 = htole16(UPGT_CHANNEL_UNKNOWN1);
926 chan->unknown2 = htole16(UPGT_CHANNEL_UNKNOWN2);
927 chan->freq6 = sc->sc_eeprom_freq6[channel];
928 chan->settings = sc->sc_eeprom_freq6_settings;
929 chan->unknown3 = UPGT_CHANNEL_UNKNOWN3;
930
931 memcpy(chan->freq3_1, &sc->sc_eeprom_freq3[channel].data,
932 sizeof(chan->freq3_1));
933 memcpy(chan->freq4, &sc->sc_eeprom_freq4[channel],
934 sizeof(sc->sc_eeprom_freq4[channel]));
935 memcpy(chan->freq3_2, &sc->sc_eeprom_freq3[channel].data,
936 sizeof(chan->freq3_2));
937
938 data_cmd->buflen = sizeof(*mem) + sizeof(*chan);
939
940 mem->chksum = upgt_chksum_le((uint32_t *)chan,
941 data_cmd->buflen - sizeof(*mem));
942
943 upgt_bulk_tx(sc, data_cmd);
944}
945
946static struct ieee80211vap *
947upgt_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
948 enum ieee80211_opmode opmode, int flags,
949 const uint8_t bssid[IEEE80211_ADDR_LEN],
950 const uint8_t mac[IEEE80211_ADDR_LEN])
951{
952 struct upgt_vap *uvp;
953 struct ieee80211vap *vap;
954
955 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
956 return NULL;
957 uvp = malloc(sizeof(struct upgt_vap), M_80211_VAP, M_WAITOK | M_ZERO);
958 vap = &uvp->vap;
959 /* enable s/w bmiss handling for sta mode */
960
961 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
962 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
963 /* out of memory */
964 free(uvp, M_80211_VAP);
965 return (NULL);
966 }
967
968 /* override state transition machine */
969 uvp->newstate = vap->iv_newstate;
970 vap->iv_newstate = upgt_newstate;
971
972 /* setup device rates */
973 upgt_setup_rates(vap, ic);
974
975 /* complete setup */
976 ieee80211_vap_attach(vap, ieee80211_media_change,
977 ieee80211_media_status, mac);
978 ic->ic_opmode = opmode;
979 return vap;
980}
981
982static int
983upgt_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
984{
985 struct upgt_vap *uvp = UPGT_VAP(vap);
986 struct ieee80211com *ic = vap->iv_ic;
987 struct upgt_softc *sc = ic->ic_softc;
988
989 /* do it in a process context */
990 sc->sc_state = nstate;
991
992 IEEE80211_UNLOCK(ic);
993 UPGT_LOCK(sc);
994 callout_stop(&sc->sc_led_ch);
995 callout_stop(&sc->sc_watchdog_ch);
996
997 switch (nstate) {
998 case IEEE80211_S_INIT:
999 /* do not accept any frames if the device is down */
1000 (void)upgt_set_macfilter(sc, sc->sc_state);
1001 upgt_set_led(sc, UPGT_LED_OFF);
1002 break;
1003 case IEEE80211_S_SCAN:
1004 upgt_set_chan(sc, ic->ic_curchan);
1005 break;
1006 case IEEE80211_S_AUTH:
1007 upgt_set_chan(sc, ic->ic_curchan);
1008 break;
1009 case IEEE80211_S_ASSOC:
1010 break;
1011 case IEEE80211_S_RUN:
1012 upgt_set_macfilter(sc, sc->sc_state);
1013 upgt_set_led(sc, UPGT_LED_ON);
1014 break;
1015 default:
1016 break;
1017 }
1018 UPGT_UNLOCK(sc);
1019 IEEE80211_LOCK(ic);
1020 return (uvp->newstate(vap, nstate, arg));
1021}
1022
1023static void
1024upgt_vap_delete(struct ieee80211vap *vap)
1025{
1026 struct upgt_vap *uvp = UPGT_VAP(vap);
1027
1028 ieee80211_vap_detach(vap);
1029 free(uvp, M_80211_VAP);
1030}
1031
1032static void
1033upgt_update_mcast(struct ieee80211com *ic)
1034{
1035 struct upgt_softc *sc = ic->ic_softc;
1036
1037 upgt_set_multi(sc);
1038}
1039
1040static int
1041upgt_eeprom_parse(struct upgt_softc *sc)
1042{
1043 struct ieee80211com *ic = &sc->sc_ic;
1044 struct upgt_eeprom_header *eeprom_header;
1045 struct upgt_eeprom_option *eeprom_option;
1046 uint16_t option_len;
1047 uint16_t option_type;
1048 uint16_t preamble_len;
1049 int option_end = 0;
1050
1051 /* calculate eeprom options start offset */
1052 eeprom_header = (struct upgt_eeprom_header *)sc->sc_eeprom;
1053 preamble_len = le16toh(eeprom_header->preamble_len);
1054 eeprom_option = (struct upgt_eeprom_option *)(sc->sc_eeprom +
1055 (sizeof(struct upgt_eeprom_header) + preamble_len));
1056
1057 while (!option_end) {
1058
1059 /* sanity check */
1060 if (eeprom_option >= (struct upgt_eeprom_option *)
1061 (sc->sc_eeprom + UPGT_EEPROM_SIZE)) {
1062 return (EINVAL);
1063 }
1064
1065 /* the eeprom option length is stored in words */
1066 option_len =
1067 (le16toh(eeprom_option->len) - 1) * sizeof(uint16_t);
1068 option_type =
1069 le16toh(eeprom_option->type);
1070
1071 /* sanity check */
1072 if (option_len == 0 || option_len >= UPGT_EEPROM_SIZE)
1073 return (EINVAL);
1074
1075 switch (option_type) {
1076 case UPGT_EEPROM_TYPE_NAME:
1077 DPRINTF(sc, UPGT_DEBUG_FW,
1078 "EEPROM name len=%d\n", option_len);
1079 break;
1080 case UPGT_EEPROM_TYPE_SERIAL:
1081 DPRINTF(sc, UPGT_DEBUG_FW,
1082 "EEPROM serial len=%d\n", option_len);
1083 break;
1084 case UPGT_EEPROM_TYPE_MAC:
1085 DPRINTF(sc, UPGT_DEBUG_FW,
1086 "EEPROM mac len=%d\n", option_len);
1087
1088 IEEE80211_ADDR_COPY(ic->ic_macaddr,
1089 eeprom_option->data);
1090 break;
1091 case UPGT_EEPROM_TYPE_HWRX:
1092 DPRINTF(sc, UPGT_DEBUG_FW,
1093 "EEPROM hwrx len=%d\n", option_len);
1094
1095 upgt_eeprom_parse_hwrx(sc, eeprom_option->data);
1096 break;
1097 case UPGT_EEPROM_TYPE_CHIP:
1098 DPRINTF(sc, UPGT_DEBUG_FW,
1099 "EEPROM chip len=%d\n", option_len);
1100 break;
1101 case UPGT_EEPROM_TYPE_FREQ3:
1102 DPRINTF(sc, UPGT_DEBUG_FW,
1103 "EEPROM freq3 len=%d\n", option_len);
1104
1105 upgt_eeprom_parse_freq3(sc, eeprom_option->data,
1106 option_len);
1107 break;
1108 case UPGT_EEPROM_TYPE_FREQ4:
1109 DPRINTF(sc, UPGT_DEBUG_FW,
1110 "EEPROM freq4 len=%d\n", option_len);
1111
1112 upgt_eeprom_parse_freq4(sc, eeprom_option->data,
1113 option_len);
1114 break;
1115 case UPGT_EEPROM_TYPE_FREQ5:
1116 DPRINTF(sc, UPGT_DEBUG_FW,
1117 "EEPROM freq5 len=%d\n", option_len);
1118 break;
1119 case UPGT_EEPROM_TYPE_FREQ6:
1120 DPRINTF(sc, UPGT_DEBUG_FW,
1121 "EEPROM freq6 len=%d\n", option_len);
1122
1123 upgt_eeprom_parse_freq6(sc, eeprom_option->data,
1124 option_len);
1125 break;
1126 case UPGT_EEPROM_TYPE_END:
1127 DPRINTF(sc, UPGT_DEBUG_FW,
1128 "EEPROM end len=%d\n", option_len);
1129 option_end = 1;
1130 break;
1131 case UPGT_EEPROM_TYPE_OFF:
1132 DPRINTF(sc, UPGT_DEBUG_FW,
1133 "%s: EEPROM off without end option\n", __func__);
1134 return (EIO);
1135 default:
1136 DPRINTF(sc, UPGT_DEBUG_FW,
1137 "EEPROM unknown type 0x%04x len=%d\n",
1138 option_type, option_len);
1139 break;
1140 }
1141
1142 /* jump to next EEPROM option */
1143 eeprom_option = (struct upgt_eeprom_option *)
1144 (eeprom_option->data + option_len);
1145 }
1146 return (0);
1147}
1148
1149static void
1150upgt_eeprom_parse_freq3(struct upgt_softc *sc, uint8_t *data, int len)
1151{
1152 struct upgt_eeprom_freq3_header *freq3_header;
1153 struct upgt_lmac_freq3 *freq3;
1154 int i;
1155 int elements;
1156 int flags;
1157 unsigned channel;
1158
1159 freq3_header = (struct upgt_eeprom_freq3_header *)data;
1160 freq3 = (struct upgt_lmac_freq3 *)(freq3_header + 1);
1161
1162 flags = freq3_header->flags;
1163 elements = freq3_header->elements;
1164
1165 DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d\n",
1166 flags, elements);
1167
1168 if (elements >= (int)(UPGT_EEPROM_SIZE / sizeof(freq3[0])))
1169 return;
1170
1171 for (i = 0; i < elements; i++) {
1172 channel = ieee80211_mhz2ieee(le16toh(freq3[i].freq), 0);
1173 if (channel >= IEEE80211_CHAN_MAX)
1174 continue;
1175
1176 sc->sc_eeprom_freq3[channel] = freq3[i];
1177
1178 DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1179 le16toh(sc->sc_eeprom_freq3[channel].freq), channel);
1180 }
1181}
1182
1183void
1184upgt_eeprom_parse_freq4(struct upgt_softc *sc, uint8_t *data, int len)
1185{
1186 struct upgt_eeprom_freq4_header *freq4_header;
1187 struct upgt_eeprom_freq4_1 *freq4_1;
1188 struct upgt_eeprom_freq4_2 *freq4_2;
1189 int i;
1190 int j;
1191 int elements;
1192 int settings;
1193 int flags;
1194 unsigned channel;
1195
1196 freq4_header = (struct upgt_eeprom_freq4_header *)data;
1197 freq4_1 = (struct upgt_eeprom_freq4_1 *)(freq4_header + 1);
1198 flags = freq4_header->flags;
1199 elements = freq4_header->elements;
1200 settings = freq4_header->settings;
1201
1202 /* we need this value later */
1203 sc->sc_eeprom_freq6_settings = freq4_header->settings;
1204
1205 DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d settings=%d\n",
1206 flags, elements, settings);
1207
1208 if (elements >= (int)(UPGT_EEPROM_SIZE / sizeof(freq4_1[0])))
1209 return;
1210
1211 for (i = 0; i < elements; i++) {
1212 channel = ieee80211_mhz2ieee(le16toh(freq4_1[i].freq), 0);
1213 if (channel >= IEEE80211_CHAN_MAX)
1214 continue;
1215
1216 freq4_2 = (struct upgt_eeprom_freq4_2 *)freq4_1[i].data;
1217 for (j = 0; j < settings; j++) {
1218 sc->sc_eeprom_freq4[channel][j].cmd = freq4_2[j];
1219 sc->sc_eeprom_freq4[channel][j].pad = 0;
1220 }
1221
1222 DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1223 le16toh(freq4_1[i].freq), channel);
1224 }
1225}
1226
1227void
1228upgt_eeprom_parse_freq6(struct upgt_softc *sc, uint8_t *data, int len)
1229{
1230 struct upgt_lmac_freq6 *freq6;
1231 int i;
1232 int elements;
1233 unsigned channel;
1234
1235 freq6 = (struct upgt_lmac_freq6 *)data;
1236 elements = len / sizeof(struct upgt_lmac_freq6);
1237
1238 DPRINTF(sc, UPGT_DEBUG_FW, "elements=%d\n", elements);
1239
1240 if (elements >= (int)(UPGT_EEPROM_SIZE / sizeof(freq6[0])))
1241 return;
1242
1243 for (i = 0; i < elements; i++) {
1244 channel = ieee80211_mhz2ieee(le16toh(freq6[i].freq), 0);
1245 if (channel >= IEEE80211_CHAN_MAX)
1246 continue;
1247
1248 sc->sc_eeprom_freq6[channel] = freq6[i];
1249
1250 DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1251 le16toh(sc->sc_eeprom_freq6[channel].freq), channel);
1252 }
1253}
1254
1255static void
1256upgt_eeprom_parse_hwrx(struct upgt_softc *sc, uint8_t *data)
1257{
1258 struct upgt_eeprom_option_hwrx *option_hwrx;
1259
1260 option_hwrx = (struct upgt_eeprom_option_hwrx *)data;
1261
1262 sc->sc_eeprom_hwrx = option_hwrx->rxfilter - UPGT_EEPROM_RX_CONST;
1263
1264 DPRINTF(sc, UPGT_DEBUG_FW, "hwrx option value=0x%04x\n",
1265 sc->sc_eeprom_hwrx);
1266}
1267
1268static int
1269upgt_eeprom_read(struct upgt_softc *sc)
1270{
1271 struct upgt_data *data_cmd;
1272 struct upgt_lmac_mem *mem;
1273 struct upgt_lmac_eeprom *eeprom;
1274 int block, error, offset;
1275
1276 UPGT_LOCK(sc);
1277 usb_pause_mtx(&sc->sc_mtx, 100);
1278
1279 offset = 0;
1280 block = UPGT_EEPROM_BLOCK_SIZE;
1281 while (offset < UPGT_EEPROM_SIZE) {
1282 DPRINTF(sc, UPGT_DEBUG_FW,
1283 "request EEPROM block (offset=%d, len=%d)\n", offset, block);
1284
1285 data_cmd = upgt_getbuf(sc);
1286 if (data_cmd == NULL) {
1287 UPGT_UNLOCK(sc);
1288 return (ENOBUFS);
1289 }
1290
1291 /*
1292 * Transmit the URB containing the CMD data.
1293 */
1294 memset(data_cmd->buf, 0, MCLBYTES);
1295
1296 mem = (struct upgt_lmac_mem *)data_cmd->buf;
1297 mem->addr = htole32(sc->sc_memaddr_frame_start +
1298 UPGT_MEMSIZE_FRAME_HEAD);
1299
1300 eeprom = (struct upgt_lmac_eeprom *)(mem + 1);
1301 eeprom->header1.flags = 0;
1302 eeprom->header1.type = UPGT_H1_TYPE_CTRL;
1303 eeprom->header1.len = htole16((
1304 sizeof(struct upgt_lmac_eeprom) -
1305 sizeof(struct upgt_lmac_header)) + block);
1306
1307 eeprom->header2.reqid = htole32(sc->sc_memaddr_frame_start);
1308 eeprom->header2.type = htole16(UPGT_H2_TYPE_EEPROM);
1309 eeprom->header2.flags = 0;
1310
1311 eeprom->offset = htole16(offset);
1312 eeprom->len = htole16(block);
1313
1314 data_cmd->buflen = sizeof(*mem) + sizeof(*eeprom) + block;
1315
1316 mem->chksum = upgt_chksum_le((uint32_t *)eeprom,
1317 data_cmd->buflen - sizeof(*mem));
1318 upgt_bulk_tx(sc, data_cmd);
1319
1320 error = mtx_sleep(sc, &sc->sc_mtx, 0, "eeprom_request", hz);
1321 if (error != 0) {
1322 device_printf(sc->sc_dev,
1323 "timeout while waiting for EEPROM data\n");
1324 UPGT_UNLOCK(sc);
1325 return (EIO);
1326 }
1327
1328 offset += block;
1329 if (UPGT_EEPROM_SIZE - offset < block)
1330 block = UPGT_EEPROM_SIZE - offset;
1331 }
1332
1333 UPGT_UNLOCK(sc);
1334 return (0);
1335}
1336
1337/*
1338 * When a rx data came in the function returns a mbuf and a rssi values.
1339 */
1340static struct mbuf *
1341upgt_rxeof(struct usb_xfer *xfer, struct upgt_data *data, int *rssi)
1342{
1343 struct mbuf *m = NULL;
1344 struct upgt_softc *sc = usbd_xfer_softc(xfer);
1345 struct upgt_lmac_header *header;
1346 struct upgt_lmac_eeprom *eeprom;
1347 uint8_t h1_type;
1348 uint16_t h2_type;
1349 int actlen, sumlen;
1350
1351 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1352
1353 UPGT_ASSERT_LOCKED(sc);
1354
1355 if (actlen < 1)
1356 return (NULL);
1357
1358 /* Check only at the very beginning. */
1359 if (!(sc->sc_flags & UPGT_FLAG_FWLOADED) &&
1360 (memcmp(data->buf, "OK", 2) == 0)) {
1361 sc->sc_flags |= UPGT_FLAG_FWLOADED;
1362 wakeup_one(sc);
1363 return (NULL);
1364 }
1365
1366 if (actlen < (int)UPGT_RX_MINSZ)
1367 return (NULL);
1368
1369 /*
1370 * Check what type of frame came in.
1371 */
1372 header = (struct upgt_lmac_header *)(data->buf + 4);
1373
1374 h1_type = header->header1.type;
1375 h2_type = le16toh(header->header2.type);
1376
1377 if (h1_type == UPGT_H1_TYPE_CTRL && h2_type == UPGT_H2_TYPE_EEPROM) {
1378 eeprom = (struct upgt_lmac_eeprom *)(data->buf + 4);
1379 uint16_t eeprom_offset = le16toh(eeprom->offset);
1380 uint16_t eeprom_len = le16toh(eeprom->len);
1381
1382 DPRINTF(sc, UPGT_DEBUG_FW,
1383 "received EEPROM block (offset=%d, len=%d)\n",
1384 eeprom_offset, eeprom_len);
1385
1386 memcpy(sc->sc_eeprom + eeprom_offset,
1387 data->buf + sizeof(struct upgt_lmac_eeprom) + 4,
1388 eeprom_len);
1389
1390 /* EEPROM data has arrived in time, wakeup. */
1391 wakeup(sc);
1392 } else if (h1_type == UPGT_H1_TYPE_CTRL &&
1393 h2_type == UPGT_H2_TYPE_TX_DONE) {
1394 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: received 802.11 TX done\n",
1395 __func__);
1396 upgt_tx_done(sc, data->buf + 4);
1397 } else if (h1_type == UPGT_H1_TYPE_RX_DATA ||
1398 h1_type == UPGT_H1_TYPE_RX_DATA_MGMT) {
1399 DPRINTF(sc, UPGT_DEBUG_RECV, "%s: received 802.11 RX data\n",
1400 __func__);
1401 m = upgt_rx(sc, data->buf + 4, le16toh(header->header1.len),
1402 rssi);
1403 } else if (h1_type == UPGT_H1_TYPE_CTRL &&
1404 h2_type == UPGT_H2_TYPE_STATS) {
1405 DPRINTF(sc, UPGT_DEBUG_STAT, "%s: received statistic data\n",
1406 __func__);
1407 /* TODO: what could we do with the statistic data? */
1408 } else {
1409 /* ignore unknown frame types */
1410 DPRINTF(sc, UPGT_DEBUG_INTR,
1411 "received unknown frame type 0x%02x\n",
1412 header->header1.type);
1413 }
1414 return (m);
1415}
1416
1417/*
1418 * The firmware awaits a checksum for each frame we send to it.
1419 * The algorithm used therefor is uncommon but somehow similar to CRC32.
1420 */
1421static uint32_t
1422upgt_chksum_le(const uint32_t *buf, size_t size)
1423{
1424 size_t i;
1425 uint32_t crc = 0;
1426
1427 for (i = 0; i < size; i += sizeof(uint32_t)) {
1428 crc = htole32(crc ^ *buf++);
1429 crc = htole32((crc >> 5) ^ (crc << 3));
1430 }
1431
1432 return (crc);
1433}
1434
1435static struct mbuf *
1436upgt_rx(struct upgt_softc *sc, uint8_t *data, int pkglen, int *rssi)
1437{
1438 struct ieee80211com *ic = &sc->sc_ic;
1439 struct upgt_lmac_rx_desc *rxdesc;
1440 struct mbuf *m;
1441
1442 /*
1443 * don't pass packets to the ieee80211 framework if the driver isn't
1444 * RUNNING.
1445 */
1446 if (!(sc->sc_flags & UPGT_FLAG_INITDONE))
1447 return (NULL);
1448
1449 /* access RX packet descriptor */
1450 rxdesc = (struct upgt_lmac_rx_desc *)data;
1451
1452 /* create mbuf which is suitable for strict alignment archs */
1453 KASSERT((pkglen + ETHER_ALIGN) < MCLBYTES,
1454 ("A current mbuf storage is small (%d)", pkglen + ETHER_ALIGN));
1455 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1456 if (m == NULL) {
1457 device_printf(sc->sc_dev, "could not create RX mbuf\n");
1458 return (NULL);
1459 }
1460 m_adj(m, ETHER_ALIGN);
1461 memcpy(mtod(m, char *), rxdesc->data, pkglen);
1462 /* trim FCS */
1463 m->m_len = m->m_pkthdr.len = pkglen - IEEE80211_CRC_LEN;
1464
1465 if (ieee80211_radiotap_active(ic)) {
1466 struct upgt_rx_radiotap_header *tap = &sc->sc_rxtap;
1467
1468 tap->wr_flags = 0;
1469 tap->wr_rate = upgt_rx_rate(sc, rxdesc->rate);
1470 tap->wr_antsignal = rxdesc->rssi;
1471 }
1472
1473 DPRINTF(sc, UPGT_DEBUG_RX_PROC, "%s: RX done\n", __func__);
1474 *rssi = rxdesc->rssi;
1475 return (m);
1476}
1477
1478static uint8_t
1479upgt_rx_rate(struct upgt_softc *sc, const int rate)
1480{
1481 struct ieee80211com *ic = &sc->sc_ic;
1482 static const uint8_t cck_upgt2rate[4] = { 2, 4, 11, 22 };
1483 static const uint8_t ofdm_upgt2rate[12] =
1484 { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 };
1485
1486 if (ic->ic_curmode == IEEE80211_MODE_11B &&
1487 !(rate < 0 || rate > 3))
1488 return cck_upgt2rate[rate & 0xf];
1489
1490 if (ic->ic_curmode == IEEE80211_MODE_11G &&
1491 !(rate < 0 || rate > 11))
1492 return ofdm_upgt2rate[rate & 0xf];
1493
1494 return (0);
1495}
1496
1497static void
1498upgt_tx_done(struct upgt_softc *sc, uint8_t *data)
1499{
1500 struct upgt_lmac_tx_done_desc *desc;
1501 int i, freed = 0;
1502
1503 UPGT_ASSERT_LOCKED(sc);
1504
1505 desc = (struct upgt_lmac_tx_done_desc *)data;
1506
1507 for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1508 struct upgt_data *data_tx = &sc->sc_tx_data[i];
1509
1510 if (data_tx->addr == le32toh(desc->header2.reqid)) {
1511 upgt_mem_free(sc, data_tx->addr);
1512 data_tx->ni = NULL;
1513 data_tx->addr = 0;
1514 data_tx->m = NULL;
1515
1516 DPRINTF(sc, UPGT_DEBUG_TX_PROC,
1517 "TX done: memaddr=0x%08x, status=0x%04x, rssi=%d, ",
1518 le32toh(desc->header2.reqid),
1519 le16toh(desc->status), le16toh(desc->rssi));
1520 DPRINTF(sc, UPGT_DEBUG_TX_PROC, "seq=%d\n",
1521 le16toh(desc->seq));
1522
1523 freed++;
1524 }
1525 }
1526
1527 if (freed != 0) {
1528 UPGT_UNLOCK(sc);
1529 sc->sc_tx_timer = 0;
1530 upgt_start(sc);
1531 UPGT_LOCK(sc);
1532 }
1533}
1534
1535static void
1536upgt_mem_free(struct upgt_softc *sc, uint32_t addr)
1537{
1538 int i;
1539
1540 for (i = 0; i < sc->sc_memory.pages; i++) {
1541 if (sc->sc_memory.page[i].addr == addr) {
1542 sc->sc_memory.page[i].used = 0;
1543 return;
1544 }
1545 }
1546
1547 device_printf(sc->sc_dev,
1548 "could not free memory address 0x%08x\n", addr);
1549}
1550
1551static int
1552upgt_fw_load(struct upgt_softc *sc)
1553{
1554 const struct firmware *fw;
1555 struct upgt_data *data_cmd;
1556 struct upgt_fw_x2_header *x2;
1557 char start_fwload_cmd[] = { 0x3c, 0x0d };
1558 int error = 0;
1559 size_t offset;
1560 int bsize;
1561 int n;
1562 uint32_t crc32;
1563
1564 fw = firmware_get(upgt_fwname);
1565 if (fw == NULL) {
1566 device_printf(sc->sc_dev, "could not read microcode %s\n",
1567 upgt_fwname);
1568 return (EIO);
1569 }
1570
1571 UPGT_LOCK(sc);
1572
1573 /* send firmware start load command */
1574 data_cmd = upgt_getbuf(sc);
1575 if (data_cmd == NULL) {
1576 error = ENOBUFS;
1577 goto fail;
1578 }
1579 data_cmd->buflen = sizeof(start_fwload_cmd);
1580 memcpy(data_cmd->buf, start_fwload_cmd, data_cmd->buflen);
1581 upgt_bulk_tx(sc, data_cmd);
1582
1583 /* send X2 header */
1584 data_cmd = upgt_getbuf(sc);
1585 if (data_cmd == NULL) {
1586 error = ENOBUFS;
1587 goto fail;
1588 }
1589 data_cmd->buflen = sizeof(struct upgt_fw_x2_header);
1590 x2 = (struct upgt_fw_x2_header *)data_cmd->buf;
1591 memcpy(x2->signature, UPGT_X2_SIGNATURE, UPGT_X2_SIGNATURE_SIZE);
1592 x2->startaddr = htole32(UPGT_MEMADDR_FIRMWARE_START);
1593 x2->len = htole32(fw->datasize);
1594 x2->crc = upgt_crc32_le((uint8_t *)data_cmd->buf +
1595 UPGT_X2_SIGNATURE_SIZE,
1596 sizeof(struct upgt_fw_x2_header) - UPGT_X2_SIGNATURE_SIZE -
1597 sizeof(uint32_t));
1598 upgt_bulk_tx(sc, data_cmd);
1599
1600 /* download firmware */
1601 for (offset = 0; offset < fw->datasize; offset += bsize) {
1602 if (fw->datasize - offset > UPGT_FW_BLOCK_SIZE)
1603 bsize = UPGT_FW_BLOCK_SIZE;
1604 else
1605 bsize = fw->datasize - offset;
1606
1607 data_cmd = upgt_getbuf(sc);
1608 if (data_cmd == NULL) {
1609 error = ENOBUFS;
1610 goto fail;
1611 }
1612 n = upgt_fw_copy((const uint8_t *)fw->data + offset,
1613 data_cmd->buf, bsize);
1614 data_cmd->buflen = bsize;
1615 upgt_bulk_tx(sc, data_cmd);
1616
1617 DPRINTF(sc, UPGT_DEBUG_FW, "FW offset=%d, read=%d, sent=%d\n",
1618 offset, n, bsize);
1619 bsize = n;
1620 }
1621 DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware downloaded\n", __func__);
1622
1623 /* load firmware */
1624 data_cmd = upgt_getbuf(sc);
1625 if (data_cmd == NULL) {
1626 error = ENOBUFS;
1627 goto fail;
1628 }
1629 crc32 = upgt_crc32_le(fw->data, fw->datasize);
1630 *((uint32_t *)(data_cmd->buf) ) = crc32;
1631 *((uint8_t *)(data_cmd->buf) + 4) = 'g';
1632 *((uint8_t *)(data_cmd->buf) + 5) = '\r';
1633 data_cmd->buflen = 6;
1634 upgt_bulk_tx(sc, data_cmd);
1635
1636 /* waiting 'OK' response. */
1637 usbd_transfer_start(sc->sc_xfer[UPGT_BULK_RX]);
1638 error = mtx_sleep(sc, &sc->sc_mtx, 0, "upgtfw", 2 * hz);
1639 if (error != 0) {
1640 device_printf(sc->sc_dev, "firmware load failed\n");
1641 error = EIO;
1642 }
1643
1644 DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware loaded\n", __func__);
1645fail:
1646 UPGT_UNLOCK(sc);
1647 firmware_put(fw, FIRMWARE_UNLOAD);
1648 return (error);
1649}
1650
1651static uint32_t
1652upgt_crc32_le(const void *buf, size_t size)
1653{
1654 uint32_t crc;
1655
1656 crc = ether_crc32_le(buf, size);
1657
1658 /* apply final XOR value as common for CRC-32 */
1659 crc = htole32(crc ^ 0xffffffffU);
1660
1661 return (crc);
1662}
1663
1664/*
1665 * While copying the version 2 firmware, we need to replace two characters:
1666 *
1667 * 0x7e -> 0x7d 0x5e
1668 * 0x7d -> 0x7d 0x5d
1669 */
1670static int
1671upgt_fw_copy(const uint8_t *src, char *dst, int size)
1672{
1673 int i, j;
1674
1675 for (i = 0, j = 0; i < size && j < size; i++) {
1676 switch (src[i]) {
1677 case 0x7e:
1678 dst[j] = 0x7d;
1679 j++;
1680 dst[j] = 0x5e;
1681 j++;
1682 break;
1683 case 0x7d:
1684 dst[j] = 0x7d;
1685 j++;
1686 dst[j] = 0x5d;
1687 j++;
1688 break;
1689 default:
1690 dst[j] = src[i];
1691 j++;
1692 break;
1693 }
1694 }
1695
1696 return (i);
1697}
1698
1699static int
1700upgt_mem_init(struct upgt_softc *sc)
1701{
1702 int i;
1703
1704 for (i = 0; i < UPGT_MEMORY_MAX_PAGES; i++) {
1705 sc->sc_memory.page[i].used = 0;
1706
1707 if (i == 0) {
1708 /*
1709 * The first memory page is always reserved for
1710 * command data.
1711 */
1712 sc->sc_memory.page[i].addr =
1713 sc->sc_memaddr_frame_start + MCLBYTES;
1714 } else {
1715 sc->sc_memory.page[i].addr =
1716 sc->sc_memory.page[i - 1].addr + MCLBYTES;
1717 }
1718
1719 if (sc->sc_memory.page[i].addr + MCLBYTES >=
1720 sc->sc_memaddr_frame_end)
1721 break;
1722
1723 DPRINTF(sc, UPGT_DEBUG_FW, "memory address page %d=0x%08x\n",
1724 i, sc->sc_memory.page[i].addr);
1725 }
1726
1727 sc->sc_memory.pages = i;
1728
1729 DPRINTF(sc, UPGT_DEBUG_FW, "memory pages=%d\n", sc->sc_memory.pages);
1730 return (0);
1731}
1732
1733static int
1734upgt_fw_verify(struct upgt_softc *sc)
1735{
1736 const struct firmware *fw;
1737 const struct upgt_fw_bra_option *bra_opt;
1738 const struct upgt_fw_bra_descr *descr;
1739 const uint8_t *p;
1740 const uint32_t *uc;
1741 uint32_t bra_option_type, bra_option_len;
1742 size_t offset;
1743 int bra_end = 0;
1744 int error = 0;
1745
1746 fw = firmware_get(upgt_fwname);
1747 if (fw == NULL) {
1748 device_printf(sc->sc_dev, "could not read microcode %s\n",
1749 upgt_fwname);
1750 return EIO;
1751 }
1752
1753 /*
1754 * Seek to beginning of Boot Record Area (BRA).
1755 */
1756 for (offset = 0; offset < fw->datasize; offset += sizeof(*uc)) {
1757 uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
1758 if (*uc == 0)
1759 break;
1760 }
1761 for (; offset < fw->datasize; offset += sizeof(*uc)) {
1762 uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
1763 if (*uc != 0)
1764 break;
1765 }
1766 if (offset == fw->datasize) {
1767 device_printf(sc->sc_dev,
1768 "firmware Boot Record Area not found\n");
1769 error = EIO;
1770 goto fail;
1771 }
1772
1773 DPRINTF(sc, UPGT_DEBUG_FW,
1774 "firmware Boot Record Area found at offset %d\n", offset);
1775
1776 /*
1777 * Parse Boot Record Area (BRA) options.
1778 */
1779 while (offset < fw->datasize && bra_end == 0) {
1780 /* get current BRA option */
1781 p = (const uint8_t *)fw->data + offset;
1782 bra_opt = (const struct upgt_fw_bra_option *)p;
1783 bra_option_type = le32toh(bra_opt->type);
1784 bra_option_len = le32toh(bra_opt->len) * sizeof(*uc);
1785
1786 switch (bra_option_type) {
1787 case UPGT_BRA_TYPE_FW:
1788 DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_FW len=%d\n",
1789 bra_option_len);
1790
1791 if (bra_option_len != UPGT_BRA_FWTYPE_SIZE) {
1792 device_printf(sc->sc_dev,
1793 "wrong UPGT_BRA_TYPE_FW len\n");
1794 error = EIO;
1795 goto fail;
1796 }
1797 if (memcmp(UPGT_BRA_FWTYPE_LM86, bra_opt->data,
1798 bra_option_len) == 0) {
1799 sc->sc_fw_type = UPGT_FWTYPE_LM86;
1800 break;
1801 }
1802 if (memcmp(UPGT_BRA_FWTYPE_LM87, bra_opt->data,
1803 bra_option_len) == 0) {
1804 sc->sc_fw_type = UPGT_FWTYPE_LM87;
1805 break;
1806 }
1807 device_printf(sc->sc_dev,
1808 "unsupported firmware type\n");
1809 error = EIO;
1810 goto fail;
1811 case UPGT_BRA_TYPE_VERSION:
1812 DPRINTF(sc, UPGT_DEBUG_FW,
1813 "UPGT_BRA_TYPE_VERSION len=%d\n", bra_option_len);
1814 break;
1815 case UPGT_BRA_TYPE_DEPIF:
1816 DPRINTF(sc, UPGT_DEBUG_FW,
1817 "UPGT_BRA_TYPE_DEPIF len=%d\n", bra_option_len);
1818 break;
1819 case UPGT_BRA_TYPE_EXPIF:
1820 DPRINTF(sc, UPGT_DEBUG_FW,
1821 "UPGT_BRA_TYPE_EXPIF len=%d\n", bra_option_len);
1822 break;
1823 case UPGT_BRA_TYPE_DESCR:
1824 DPRINTF(sc, UPGT_DEBUG_FW,
1825 "UPGT_BRA_TYPE_DESCR len=%d\n", bra_option_len);
1826
1827 descr = (const struct upgt_fw_bra_descr *)bra_opt->data;
1828
1829 sc->sc_memaddr_frame_start =
1830 le32toh(descr->memaddr_space_start);
1831 sc->sc_memaddr_frame_end =
1832 le32toh(descr->memaddr_space_end);
1833
1834 DPRINTF(sc, UPGT_DEBUG_FW,
1835 "memory address space start=0x%08x\n",
1836 sc->sc_memaddr_frame_start);
1837 DPRINTF(sc, UPGT_DEBUG_FW,
1838 "memory address space end=0x%08x\n",
1839 sc->sc_memaddr_frame_end);
1840 break;
1841 case UPGT_BRA_TYPE_END:
1842 DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_END len=%d\n",
1843 bra_option_len);
1844 bra_end = 1;
1845 break;
1846 default:
1847 DPRINTF(sc, UPGT_DEBUG_FW, "unknown BRA option len=%d\n",
1848 bra_option_len);
1849 error = EIO;
1850 goto fail;
1851 }
1852
1853 /* jump to next BRA option */
1854 offset += sizeof(struct upgt_fw_bra_option) + bra_option_len;
1855 }
1856
1857 DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware verified", __func__);
1858fail:
1859 firmware_put(fw, FIRMWARE_UNLOAD);
1860 return (error);
1861}
1862
1863static void
1864upgt_bulk_tx(struct upgt_softc *sc, struct upgt_data *data)
1865{
1866
1867 UPGT_ASSERT_LOCKED(sc);
1868
1869 STAILQ_INSERT_TAIL(&sc->sc_tx_pending, data, next);
1870 UPGT_STAT_INC(sc, st_tx_pending);
1871 usbd_transfer_start(sc->sc_xfer[UPGT_BULK_TX]);
1872}
1873
1874static int
1875upgt_device_reset(struct upgt_softc *sc)
1876{
1877 struct upgt_data *data;
1878 char init_cmd[] = { 0x7e, 0x7e, 0x7e, 0x7e };
1879
1880 UPGT_LOCK(sc);
1881
1882 data = upgt_getbuf(sc);
1883 if (data == NULL) {
1884 UPGT_UNLOCK(sc);
1885 return (ENOBUFS);
1886 }
1887 memcpy(data->buf, init_cmd, sizeof(init_cmd));
1888 data->buflen = sizeof(init_cmd);
1889 upgt_bulk_tx(sc, data);
1890 usb_pause_mtx(&sc->sc_mtx, 100);
1891
1892 UPGT_UNLOCK(sc);
1893 DPRINTF(sc, UPGT_DEBUG_FW, "%s: device initialized\n", __func__);
1894 return (0);
1895}
1896
1897static int
1898upgt_alloc_tx(struct upgt_softc *sc)
1899{
1900 int i;
1901
1902 STAILQ_INIT(&sc->sc_tx_active);
1903 STAILQ_INIT(&sc->sc_tx_inactive);
1904 STAILQ_INIT(&sc->sc_tx_pending);
1905
1906 for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1907 struct upgt_data *data = &sc->sc_tx_data[i];
1908 data->buf = ((uint8_t *)sc->sc_tx_dma_buf) + (i * MCLBYTES);
1909 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data, next);
1910 UPGT_STAT_INC(sc, st_tx_inactive);
1911 }
1912
1913 return (0);
1914}
1915
1916static int
1917upgt_alloc_rx(struct upgt_softc *sc)
1918{
1919 int i;
1920
1921 STAILQ_INIT(&sc->sc_rx_active);
1922 STAILQ_INIT(&sc->sc_rx_inactive);
1923
1924 for (i = 0; i < UPGT_RX_MAXCOUNT; i++) {
1925 struct upgt_data *data = &sc->sc_rx_data[i];
1926 data->buf = ((uint8_t *)sc->sc_rx_dma_buf) + (i * MCLBYTES);
1927 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
1928 }
1929 return (0);
1930}
1931
1932static int
1933upgt_detach(device_t dev)
1934{
1935 struct upgt_softc *sc = device_get_softc(dev);
1936 struct ieee80211com *ic = &sc->sc_ic;
1937 unsigned int x;
1938
1939 /*
1940 * Prevent further allocations from RX/TX/CMD
1941 * data lists and ioctls
1942 */
1943 UPGT_LOCK(sc);
1944 sc->sc_flags |= UPGT_FLAG_DETACHED;
1945
1946 STAILQ_INIT(&sc->sc_tx_active);
1947 STAILQ_INIT(&sc->sc_tx_inactive);
1948 STAILQ_INIT(&sc->sc_tx_pending);
1949
1950 STAILQ_INIT(&sc->sc_rx_active);
1951 STAILQ_INIT(&sc->sc_rx_inactive);
1952
1953 upgt_stop(sc);
1954 UPGT_UNLOCK(sc);
1955
1956 callout_drain(&sc->sc_led_ch);
1957 callout_drain(&sc->sc_watchdog_ch);
1958
1959 /* drain USB transfers */
1960 for (x = 0; x != UPGT_N_XFERS; x++)
1961 usbd_transfer_drain(sc->sc_xfer[x]);
1962
1963 /* free data buffers */
1964 UPGT_LOCK(sc);
1965 upgt_free_rx(sc);
1966 upgt_free_tx(sc);
1967 UPGT_UNLOCK(sc);
1968
1969 /* free USB transfers and some data buffers */
1970 usbd_transfer_unsetup(sc->sc_xfer, UPGT_N_XFERS);
1971
1972 ieee80211_ifdetach(ic);
1973 mbufq_drain(&sc->sc_snd);
1974 mtx_destroy(&sc->sc_mtx);
1975
1976 return (0);
1977}
1978
1979static void
1980upgt_free_rx(struct upgt_softc *sc)
1981{
1982 int i;
1983
1984 for (i = 0; i < UPGT_RX_MAXCOUNT; i++) {
1985 struct upgt_data *data = &sc->sc_rx_data[i];
1986
1987 data->buf = NULL;
1988 data->ni = NULL;
1989 }
1990}
1991
1992static void
1993upgt_free_tx(struct upgt_softc *sc)
1994{
1995 int i;
1996
1997 for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1998 struct upgt_data *data = &sc->sc_tx_data[i];
1999
2000 if (data->ni != NULL)
2001 ieee80211_free_node(data->ni);
2002
2003 data->buf = NULL;
2004 data->ni = NULL;
2005 }
2006}
2007
2008static void
2009upgt_abort_xfers_locked(struct upgt_softc *sc)
2010{
2011 int i;
2012
2013 UPGT_ASSERT_LOCKED(sc);
2014 /* abort any pending transfers */
2015 for (i = 0; i < UPGT_N_XFERS; i++)
2016 usbd_transfer_stop(sc->sc_xfer[i]);
2017}
2018
2019static void
2020upgt_abort_xfers(struct upgt_softc *sc)
2021{
2022
2023 UPGT_LOCK(sc);
2024 upgt_abort_xfers_locked(sc);
2025 UPGT_UNLOCK(sc);
2026}
2027
2028#define UPGT_SYSCTL_STAT_ADD32(c, h, n, p, d) \
2029 SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
2030
2031static void
2032upgt_sysctl_node(struct upgt_softc *sc)
2033{
2034 struct sysctl_ctx_list *ctx;
2035 struct sysctl_oid_list *child;
2036 struct sysctl_oid *tree;
2037 struct upgt_stat *stats;
2038
2039 stats = &sc->sc_stat;
2040 ctx = device_get_sysctl_ctx(sc->sc_dev);
2041 child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->sc_dev));
2042
2043 tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
2044 NULL, "UPGT statistics");
2045 child = SYSCTL_CHILDREN(tree);
2046 UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_active",
2047 &stats->st_tx_active, "Active numbers in TX queue");
2048 UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_inactive",
2049 &stats->st_tx_inactive, "Inactive numbers in TX queue");
2050 UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_pending",
2051 &stats->st_tx_pending, "Pending numbers in TX queue");
2052}
2053
2054#undef UPGT_SYSCTL_STAT_ADD32
2055
2056static struct upgt_data *
2057_upgt_getbuf(struct upgt_softc *sc)
2058{
2059 struct upgt_data *bf;
2060
2061 bf = STAILQ_FIRST(&sc->sc_tx_inactive);
2062 if (bf != NULL) {
2063 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next);
2064 UPGT_STAT_DEC(sc, st_tx_inactive);
2065 } else
2066 bf = NULL;
2067 if (bf == NULL)
2068 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: %s\n", __func__,
2069 "out of xmit buffers");
2070 return (bf);
2071}
2072
2073static struct upgt_data *
2074upgt_getbuf(struct upgt_softc *sc)
2075{
2076 struct upgt_data *bf;
2077
2078 UPGT_ASSERT_LOCKED(sc);
2079
2080 bf = _upgt_getbuf(sc);
2081 if (bf == NULL)
2082 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: stop queue\n", __func__);
2083
2084 return (bf);
2085}
2086
2087static struct upgt_data *
2088upgt_gettxbuf(struct upgt_softc *sc)
2089{
2090 struct upgt_data *bf;
2091
2092 UPGT_ASSERT_LOCKED(sc);
2093
2094 bf = upgt_getbuf(sc);
2095 if (bf == NULL)
2096 return (NULL);
2097
2098 bf->addr = upgt_mem_alloc(sc);
2099 if (bf->addr == 0) {
2100 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: no free prism memory!\n",
2101 __func__);
2102 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, bf, next);
2103 UPGT_STAT_INC(sc, st_tx_inactive);
2104 return (NULL);
2105 }
2106 return (bf);
2107}
2108
2109static int
2110upgt_tx_start(struct upgt_softc *sc, struct mbuf *m, struct ieee80211_node *ni,
2111 struct upgt_data *data)
2112{
2113 struct ieee80211vap *vap = ni->ni_vap;
2114 int error = 0, len;
2115 struct ieee80211_frame *wh;
2116 struct ieee80211_key *k;
2117 struct upgt_lmac_mem *mem;
2118 struct upgt_lmac_tx_desc *txdesc;
2119
2120 UPGT_ASSERT_LOCKED(sc);
2121
2122 upgt_set_led(sc, UPGT_LED_BLINK);
2123
2124 /*
2125 * Software crypto.
2126 */
2127 wh = mtod(m, struct ieee80211_frame *);
2128 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
2129 k = ieee80211_crypto_encap(ni, m);
2130 if (k == NULL) {
2131 device_printf(sc->sc_dev,
2132 "ieee80211_crypto_encap returns NULL.\n");
2133 error = EIO;
2134 goto done;
2135 }
2136
2137 /* in case packet header moved, reset pointer */
2138 wh = mtod(m, struct ieee80211_frame *);
2139 }
2140
2141 /* Transmit the URB containing the TX data. */
2142 memset(data->buf, 0, MCLBYTES);
2143 mem = (struct upgt_lmac_mem *)data->buf;
2144 mem->addr = htole32(data->addr);
2145 txdesc = (struct upgt_lmac_tx_desc *)(mem + 1);
2146
2147 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
2148 IEEE80211_FC0_TYPE_MGT) {
2149 /* mgmt frames */
2150 txdesc->header1.flags = UPGT_H1_FLAGS_TX_MGMT;
2151 /* always send mgmt frames at lowest rate (DS1) */
2152 memset(txdesc->rates, 0x10, sizeof(txdesc->rates));
2153 } else {
2154 /* data frames */
2155 txdesc->header1.flags = UPGT_H1_FLAGS_TX_DATA;
2156 memcpy(txdesc->rates, sc->sc_cur_rateset, sizeof(txdesc->rates));
2157 }
2158 txdesc->header1.type = UPGT_H1_TYPE_TX_DATA;
2159 txdesc->header1.len = htole16(m->m_pkthdr.len);
2160 txdesc->header2.reqid = htole32(data->addr);
2161 txdesc->header2.type = htole16(UPGT_H2_TYPE_TX_ACK_YES);
2162 txdesc->header2.flags = htole16(UPGT_H2_FLAGS_TX_ACK_YES);
2163 txdesc->type = htole32(UPGT_TX_DESC_TYPE_DATA);
2164 txdesc->pad3[0] = UPGT_TX_DESC_PAD3_SIZE;
2165
2166 if (ieee80211_radiotap_active_vap(vap)) {
2167 struct upgt_tx_radiotap_header *tap = &sc->sc_txtap;
2168
2169 tap->wt_flags = 0;
2170 tap->wt_rate = 0; /* XXX where to get from? */
2171
2172 ieee80211_radiotap_tx(vap, m);
2173 }
2174
2175 /* copy frame below our TX descriptor header */
2176 m_copydata(m, 0, m->m_pkthdr.len,
2177 data->buf + (sizeof(*mem) + sizeof(*txdesc)));
2178 /* calculate frame size */
2179 len = sizeof(*mem) + sizeof(*txdesc) + m->m_pkthdr.len;
2180 /* we need to align the frame to a 4 byte boundary */
2181 len = (len + 3) & ~3;
2182 /* calculate frame checksum */
2183 mem->chksum = upgt_chksum_le((uint32_t *)txdesc, len - sizeof(*mem));
2184 data->ni = ni;
2185 data->m = m;
2186 data->buflen = len;
2187
2188 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: TX start data sending (%d bytes)\n",
2189 __func__, len);
2190 KASSERT(len <= MCLBYTES, ("mbuf is small for saving data"));
2191
2192 upgt_bulk_tx(sc, data);
2193done:
2194 /*
2195 * If we don't regulary read the device statistics, the RX queue
2196 * will stall. It's strange, but it works, so we keep reading
2197 * the statistics here. *shrug*
2198 */
2199 if (!(vap->iv_ifp->if_get_counter(vap->iv_ifp, IFCOUNTER_OPACKETS) %
2200 UPGT_TX_STAT_INTERVAL))
2201 upgt_get_stats(sc);
2202
2203 return (error);
2204}
2205
2206static void
2207upgt_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error)
2208{
2209 struct upgt_softc *sc = usbd_xfer_softc(xfer);
2210 struct ieee80211com *ic = &sc->sc_ic;
2211 struct ieee80211_frame *wh;
2212 struct ieee80211_node *ni;
2213 struct mbuf *m = NULL;
2214 struct upgt_data *data;
2215 int8_t nf;
2216 int rssi = -1;
2217
2218 UPGT_ASSERT_LOCKED(sc);
2219
2220 switch (USB_GET_STATE(xfer)) {
2221 case USB_ST_TRANSFERRED:
2222 data = STAILQ_FIRST(&sc->sc_rx_active);
2223 if (data == NULL)
2224 goto setup;
2225 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2226 m = upgt_rxeof(xfer, data, &rssi);
2227 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2228 /* FALLTHROUGH */
2229 case USB_ST_SETUP:
2230setup:
2231 data = STAILQ_FIRST(&sc->sc_rx_inactive);
2232 if (data == NULL)
2233 return;
2234 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next);
2235 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next);
2236 usbd_xfer_set_frame_data(xfer, 0, data->buf, MCLBYTES);
2237 usbd_transfer_submit(xfer);
2238
2239 /*
2240 * To avoid LOR we should unlock our private mutex here to call
2241 * ieee80211_input() because here is at the end of a USB
2242 * callback and safe to unlock.
2243 */
2244 UPGT_UNLOCK(sc);
2245 if (m != NULL) {
2246 wh = mtod(m, struct ieee80211_frame *);
2247 ni = ieee80211_find_rxnode(ic,
2248 (struct ieee80211_frame_min *)wh);
2249 nf = -95; /* XXX */
2250 if (ni != NULL) {
2251 (void) ieee80211_input(ni, m, rssi, nf);
2252 /* node is no longer needed */
2253 ieee80211_free_node(ni);
2254 } else
2255 (void) ieee80211_input_all(ic, m, rssi, nf);
2256 m = NULL;
2257 }
2258 UPGT_LOCK(sc);
2259 upgt_start(sc);
2260 break;
2261 default:
2262 /* needs it to the inactive queue due to a error. */
2263 data = STAILQ_FIRST(&sc->sc_rx_active);
2264 if (data != NULL) {
2265 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2266 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2267 }
2268 if (error != USB_ERR_CANCELLED) {
2269 usbd_xfer_set_stall(xfer);
2270 counter_u64_add(ic->ic_ierrors, 1);
2271 goto setup;
2272 }
2273 break;
2274 }
2275}
2276
2277static void
2278upgt_bulk_tx_callback(struct usb_xfer *xfer, usb_error_t error)
2279{
2280 struct upgt_softc *sc = usbd_xfer_softc(xfer);
2281 struct upgt_data *data;
2282
2283 UPGT_ASSERT_LOCKED(sc);
2284 switch (USB_GET_STATE(xfer)) {
2285 case USB_ST_TRANSFERRED:
2286 data = STAILQ_FIRST(&sc->sc_tx_active);
2287 if (data == NULL)
2288 goto setup;
2289 STAILQ_REMOVE_HEAD(&sc->sc_tx_active, next);
2290 UPGT_STAT_DEC(sc, st_tx_active);
2291 upgt_txeof(xfer, data);
2292 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data, next);
2293 UPGT_STAT_INC(sc, st_tx_inactive);
2294 /* FALLTHROUGH */
2295 case USB_ST_SETUP:
2296setup:
2297 data = STAILQ_FIRST(&sc->sc_tx_pending);
2298 if (data == NULL) {
2299 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: empty pending queue\n",
2300 __func__);
2301 return;
2302 }
2303 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending, next);
2304 UPGT_STAT_DEC(sc, st_tx_pending);
2305 STAILQ_INSERT_TAIL(&sc->sc_tx_active, data, next);
2306 UPGT_STAT_INC(sc, st_tx_active);
2307
2308 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen);
2309 usbd_transfer_submit(xfer);
2310 upgt_start(sc);
2311 break;
2312 default:
2313 data = STAILQ_FIRST(&sc->sc_tx_active);
2314 if (data == NULL)
2315 goto setup;
2316 if (data->ni != NULL) {
2317 if_inc_counter(data->ni->ni_vap->iv_ifp,
2318 IFCOUNTER_OERRORS, 1);
2319 ieee80211_free_node(data->ni);
2320 data->ni = NULL;
2321 }
2322 if (error != USB_ERR_CANCELLED) {
2323 usbd_xfer_set_stall(xfer);
2324 goto setup;
2325 }
2326 break;
2327 }
2328}
2329
2330static device_method_t upgt_methods[] = {
2331 /* Device interface */
2332 DEVMETHOD(device_probe, upgt_match),
2333 DEVMETHOD(device_attach, upgt_attach),
2334 DEVMETHOD(device_detach, upgt_detach),
2335 DEVMETHOD_END
2336};
2337
2338static driver_t upgt_driver = {
2339 .name = "upgt",
2340 .methods = upgt_methods,
2341 .size = sizeof(struct upgt_softc)
2342};
2343
2344static devclass_t upgt_devclass;
2345
2346DRIVER_MODULE(if_upgt, uhub, upgt_driver, upgt_devclass, NULL, 0);
2347MODULE_VERSION(if_upgt, 1);
2348MODULE_DEPEND(if_upgt, usb, 1, 1, 1);
2349MODULE_DEPEND(if_upgt, wlan, 1, 1, 1);
2350MODULE_DEPEND(if_upgt, upgtfw_fw, 1, 1, 1);
2351USB_PNP_HOST_INFO(upgt_devs);
| 247 uint8_t iface_index = UPGT_IFACE_INDEX;
248 int error;
249
250 sc->sc_dev = dev;
251 sc->sc_udev = uaa->device;
252#ifdef UPGT_DEBUG
253 sc->sc_debug = upgt_debug;
254#endif
255 device_set_usb_desc(dev);
256
257 mtx_init(&sc->sc_mtx, device_get_nameunit(sc->sc_dev), MTX_NETWORK_LOCK,
258 MTX_DEF);
259 callout_init(&sc->sc_led_ch, 0);
260 callout_init(&sc->sc_watchdog_ch, 0);
261 mbufq_init(&sc->sc_snd, ifqmaxlen);
262
263 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer,
264 upgt_config, UPGT_N_XFERS, sc, &sc->sc_mtx);
265 if (error) {
266 device_printf(dev, "could not allocate USB transfers, "
267 "err=%s\n", usbd_errstr(error));
268 goto fail1;
269 }
270
271 sc->sc_rx_dma_buf = usbd_xfer_get_frame_buffer(
272 sc->sc_xfer[UPGT_BULK_RX], 0);
273 sc->sc_tx_dma_buf = usbd_xfer_get_frame_buffer(
274 sc->sc_xfer[UPGT_BULK_TX], 0);
275
276 /* Setup TX and RX buffers */
277 error = upgt_alloc_tx(sc);
278 if (error)
279 goto fail2;
280 error = upgt_alloc_rx(sc);
281 if (error)
282 goto fail3;
283
284 /* Initialize the device. */
285 error = upgt_device_reset(sc);
286 if (error)
287 goto fail4;
288 /* Verify the firmware. */
289 error = upgt_fw_verify(sc);
290 if (error)
291 goto fail4;
292 /* Calculate device memory space. */
293 if (sc->sc_memaddr_frame_start == 0 || sc->sc_memaddr_frame_end == 0) {
294 device_printf(dev,
295 "could not find memory space addresses on FW\n");
296 error = EIO;
297 goto fail4;
298 }
299 sc->sc_memaddr_frame_end -= UPGT_MEMSIZE_RX + 1;
300 sc->sc_memaddr_rx_start = sc->sc_memaddr_frame_end + 1;
301
302 DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame start=0x%08x\n",
303 sc->sc_memaddr_frame_start);
304 DPRINTF(sc, UPGT_DEBUG_FW, "memory address frame end=0x%08x\n",
305 sc->sc_memaddr_frame_end);
306 DPRINTF(sc, UPGT_DEBUG_FW, "memory address rx start=0x%08x\n",
307 sc->sc_memaddr_rx_start);
308
309 upgt_mem_init(sc);
310
311 /* Load the firmware. */
312 error = upgt_fw_load(sc);
313 if (error)
314 goto fail4;
315
316 /* Read the whole EEPROM content and parse it. */
317 error = upgt_eeprom_read(sc);
318 if (error)
319 goto fail4;
320 error = upgt_eeprom_parse(sc);
321 if (error)
322 goto fail4;
323
324 /* all works related with the device have done here. */
325 upgt_abort_xfers(sc);
326
327 ic->ic_softc = sc;
328 ic->ic_name = device_get_nameunit(dev);
329 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
330 ic->ic_opmode = IEEE80211_M_STA;
331 /* set device capabilities */
332 ic->ic_caps =
333 IEEE80211_C_STA /* station mode */
334 | IEEE80211_C_MONITOR /* monitor mode */
335 | IEEE80211_C_SHPREAMBLE /* short preamble supported */
336 | IEEE80211_C_SHSLOT /* short slot time supported */
337 | IEEE80211_C_BGSCAN /* capable of bg scanning */
338 | IEEE80211_C_WPA /* 802.11i */
339 ;
340
341 memset(bands, 0, sizeof(bands));
342 setbit(bands, IEEE80211_MODE_11B);
343 setbit(bands, IEEE80211_MODE_11G);
344 ieee80211_init_channels(ic, NULL, bands);
345
346 ieee80211_ifattach(ic);
347 ic->ic_raw_xmit = upgt_raw_xmit;
348 ic->ic_scan_start = upgt_scan_start;
349 ic->ic_scan_end = upgt_scan_end;
350 ic->ic_set_channel = upgt_set_channel;
351 ic->ic_vap_create = upgt_vap_create;
352 ic->ic_vap_delete = upgt_vap_delete;
353 ic->ic_update_mcast = upgt_update_mcast;
354 ic->ic_transmit = upgt_transmit;
355 ic->ic_parent = upgt_parent;
356
357 ieee80211_radiotap_attach(ic,
358 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
359 UPGT_TX_RADIOTAP_PRESENT,
360 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
361 UPGT_RX_RADIOTAP_PRESENT);
362
363 upgt_sysctl_node(sc);
364
365 if (bootverbose)
366 ieee80211_announce(ic);
367
368 return (0);
369
370fail4: upgt_free_rx(sc);
371fail3: upgt_free_tx(sc);
372fail2: usbd_transfer_unsetup(sc->sc_xfer, UPGT_N_XFERS);
373fail1: mtx_destroy(&sc->sc_mtx);
374
375 return (error);
376}
377
378static void
379upgt_txeof(struct usb_xfer *xfer, struct upgt_data *data)
380{
381
382 if (data->m) {
383 /* XXX status? */
384 ieee80211_tx_complete(data->ni, data->m, 0);
385 data->m = NULL;
386 data->ni = NULL;
387 }
388}
389
390static void
391upgt_get_stats(struct upgt_softc *sc)
392{
393 struct upgt_data *data_cmd;
394 struct upgt_lmac_mem *mem;
395 struct upgt_lmac_stats *stats;
396
397 data_cmd = upgt_getbuf(sc);
398 if (data_cmd == NULL) {
399 device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
400 return;
401 }
402
403 /*
404 * Transmit the URB containing the CMD data.
405 */
406 memset(data_cmd->buf, 0, MCLBYTES);
407
408 mem = (struct upgt_lmac_mem *)data_cmd->buf;
409 mem->addr = htole32(sc->sc_memaddr_frame_start +
410 UPGT_MEMSIZE_FRAME_HEAD);
411
412 stats = (struct upgt_lmac_stats *)(mem + 1);
413
414 stats->header1.flags = 0;
415 stats->header1.type = UPGT_H1_TYPE_CTRL;
416 stats->header1.len = htole16(
417 sizeof(struct upgt_lmac_stats) - sizeof(struct upgt_lmac_header));
418
419 stats->header2.reqid = htole32(sc->sc_memaddr_frame_start);
420 stats->header2.type = htole16(UPGT_H2_TYPE_STATS);
421 stats->header2.flags = 0;
422
423 data_cmd->buflen = sizeof(*mem) + sizeof(*stats);
424
425 mem->chksum = upgt_chksum_le((uint32_t *)stats,
426 data_cmd->buflen - sizeof(*mem));
427
428 upgt_bulk_tx(sc, data_cmd);
429}
430
431static void
432upgt_parent(struct ieee80211com *ic)
433{
434 struct upgt_softc *sc = ic->ic_softc;
435 int startall = 0;
436
437 UPGT_LOCK(sc);
438 if (sc->sc_flags & UPGT_FLAG_DETACHED) {
439 UPGT_UNLOCK(sc);
440 return;
441 }
442 if (ic->ic_nrunning > 0) {
443 if (sc->sc_flags & UPGT_FLAG_INITDONE) {
444 if (ic->ic_allmulti > 0 || ic->ic_promisc > 0)
445 upgt_set_multi(sc);
446 } else {
447 upgt_init(sc);
448 startall = 1;
449 }
450 } else if (sc->sc_flags & UPGT_FLAG_INITDONE)
451 upgt_stop(sc);
452 UPGT_UNLOCK(sc);
453 if (startall)
454 ieee80211_start_all(ic);
455}
456
457static void
458upgt_stop(struct upgt_softc *sc)
459{
460
461 UPGT_ASSERT_LOCKED(sc);
462
463 if (sc->sc_flags & UPGT_FLAG_INITDONE)
464 upgt_set_macfilter(sc, IEEE80211_S_INIT);
465 upgt_abort_xfers_locked(sc);
466 /* device down */
467 sc->sc_tx_timer = 0;
468 sc->sc_flags &= ~UPGT_FLAG_INITDONE;
469}
470
471static void
472upgt_set_led(struct upgt_softc *sc, int action)
473{
474 struct upgt_data *data_cmd;
475 struct upgt_lmac_mem *mem;
476 struct upgt_lmac_led *led;
477
478 data_cmd = upgt_getbuf(sc);
479 if (data_cmd == NULL) {
480 device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
481 return;
482 }
483
484 /*
485 * Transmit the URB containing the CMD data.
486 */
487 memset(data_cmd->buf, 0, MCLBYTES);
488
489 mem = (struct upgt_lmac_mem *)data_cmd->buf;
490 mem->addr = htole32(sc->sc_memaddr_frame_start +
491 UPGT_MEMSIZE_FRAME_HEAD);
492
493 led = (struct upgt_lmac_led *)(mem + 1);
494
495 led->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
496 led->header1.type = UPGT_H1_TYPE_CTRL;
497 led->header1.len = htole16(
498 sizeof(struct upgt_lmac_led) -
499 sizeof(struct upgt_lmac_header));
500
501 led->header2.reqid = htole32(sc->sc_memaddr_frame_start);
502 led->header2.type = htole16(UPGT_H2_TYPE_LED);
503 led->header2.flags = 0;
504
505 switch (action) {
506 case UPGT_LED_OFF:
507 led->mode = htole16(UPGT_LED_MODE_SET);
508 led->action_fix = 0;
509 led->action_tmp = htole16(UPGT_LED_ACTION_OFF);
510 led->action_tmp_dur = 0;
511 break;
512 case UPGT_LED_ON:
513 led->mode = htole16(UPGT_LED_MODE_SET);
514 led->action_fix = 0;
515 led->action_tmp = htole16(UPGT_LED_ACTION_ON);
516 led->action_tmp_dur = 0;
517 break;
518 case UPGT_LED_BLINK:
519 if (sc->sc_state != IEEE80211_S_RUN) {
520 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
521 return;
522 }
523 if (sc->sc_led_blink) {
524 /* previous blink was not finished */
525 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
526 return;
527 }
528 led->mode = htole16(UPGT_LED_MODE_SET);
529 led->action_fix = htole16(UPGT_LED_ACTION_OFF);
530 led->action_tmp = htole16(UPGT_LED_ACTION_ON);
531 led->action_tmp_dur = htole16(UPGT_LED_ACTION_TMP_DUR);
532 /* lock blink */
533 sc->sc_led_blink = 1;
534 callout_reset(&sc->sc_led_ch, hz, upgt_set_led_blink, sc);
535 break;
536 default:
537 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data_cmd, next);
538 return;
539 }
540
541 data_cmd->buflen = sizeof(*mem) + sizeof(*led);
542
543 mem->chksum = upgt_chksum_le((uint32_t *)led,
544 data_cmd->buflen - sizeof(*mem));
545
546 upgt_bulk_tx(sc, data_cmd);
547}
548
549static void
550upgt_set_led_blink(void *arg)
551{
552 struct upgt_softc *sc = arg;
553
554 /* blink finished, we are ready for a next one */
555 sc->sc_led_blink = 0;
556}
557
558static void
559upgt_init(struct upgt_softc *sc)
560{
561
562 UPGT_ASSERT_LOCKED(sc);
563
564 if (sc->sc_flags & UPGT_FLAG_INITDONE)
565 upgt_stop(sc);
566
567 usbd_transfer_start(sc->sc_xfer[UPGT_BULK_RX]);
568
569 (void)upgt_set_macfilter(sc, IEEE80211_S_SCAN);
570
571 sc->sc_flags |= UPGT_FLAG_INITDONE;
572
573 callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
574}
575
576static int
577upgt_set_macfilter(struct upgt_softc *sc, uint8_t state)
578{
579 struct ieee80211com *ic = &sc->sc_ic;
580 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
581 struct ieee80211_node *ni;
582 struct upgt_data *data_cmd;
583 struct upgt_lmac_mem *mem;
584 struct upgt_lmac_filter *filter;
585
586 UPGT_ASSERT_LOCKED(sc);
587
588 data_cmd = upgt_getbuf(sc);
589 if (data_cmd == NULL) {
590 device_printf(sc->sc_dev, "out of TX buffers.\n");
591 return (ENOBUFS);
592 }
593
594 /*
595 * Transmit the URB containing the CMD data.
596 */
597 memset(data_cmd->buf, 0, MCLBYTES);
598
599 mem = (struct upgt_lmac_mem *)data_cmd->buf;
600 mem->addr = htole32(sc->sc_memaddr_frame_start +
601 UPGT_MEMSIZE_FRAME_HEAD);
602
603 filter = (struct upgt_lmac_filter *)(mem + 1);
604
605 filter->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
606 filter->header1.type = UPGT_H1_TYPE_CTRL;
607 filter->header1.len = htole16(
608 sizeof(struct upgt_lmac_filter) -
609 sizeof(struct upgt_lmac_header));
610
611 filter->header2.reqid = htole32(sc->sc_memaddr_frame_start);
612 filter->header2.type = htole16(UPGT_H2_TYPE_MACFILTER);
613 filter->header2.flags = 0;
614
615 switch (state) {
616 case IEEE80211_S_INIT:
617 DPRINTF(sc, UPGT_DEBUG_STATE, "%s: set MAC filter to INIT\n",
618 __func__);
619 filter->type = htole16(UPGT_FILTER_TYPE_RESET);
620 break;
621 case IEEE80211_S_SCAN:
622 DPRINTF(sc, UPGT_DEBUG_STATE,
623 "set MAC filter to SCAN (bssid %s)\n",
624 ether_sprintf(ieee80211broadcastaddr));
625 filter->type = htole16(UPGT_FILTER_TYPE_NONE);
626 IEEE80211_ADDR_COPY(filter->dst,
627 vap ? vap->iv_myaddr : ic->ic_macaddr);
628 IEEE80211_ADDR_COPY(filter->src, ieee80211broadcastaddr);
629 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
630 filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
631 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
632 filter->rxhw = htole32(sc->sc_eeprom_hwrx);
633 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
634 break;
635 case IEEE80211_S_RUN:
636 ni = ieee80211_ref_node(vap->iv_bss);
637 /* XXX monitor mode isn't tested yet. */
638 if (vap->iv_opmode == IEEE80211_M_MONITOR) {
639 filter->type = htole16(UPGT_FILTER_TYPE_MONITOR);
640 IEEE80211_ADDR_COPY(filter->dst,
641 vap ? vap->iv_myaddr : ic->ic_macaddr);
642 IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
643 filter->unknown1 = htole16(UPGT_FILTER_MONITOR_UNKNOWN1);
644 filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
645 filter->unknown2 = htole16(UPGT_FILTER_MONITOR_UNKNOWN2);
646 filter->rxhw = htole32(sc->sc_eeprom_hwrx);
647 filter->unknown3 = htole16(UPGT_FILTER_MONITOR_UNKNOWN3);
648 } else {
649 DPRINTF(sc, UPGT_DEBUG_STATE,
650 "set MAC filter to RUN (bssid %s)\n",
651 ether_sprintf(ni->ni_bssid));
652 filter->type = htole16(UPGT_FILTER_TYPE_STA);
653 IEEE80211_ADDR_COPY(filter->dst,
654 vap ? vap->iv_myaddr : ic->ic_macaddr);
655 IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid);
656 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1);
657 filter->rxaddr = htole32(sc->sc_memaddr_rx_start);
658 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2);
659 filter->rxhw = htole32(sc->sc_eeprom_hwrx);
660 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3);
661 }
662 ieee80211_free_node(ni);
663 break;
664 default:
665 device_printf(sc->sc_dev,
666 "MAC filter does not know that state\n");
667 break;
668 }
669
670 data_cmd->buflen = sizeof(*mem) + sizeof(*filter);
671
672 mem->chksum = upgt_chksum_le((uint32_t *)filter,
673 data_cmd->buflen - sizeof(*mem));
674
675 upgt_bulk_tx(sc, data_cmd);
676
677 return (0);
678}
679
680static void
681upgt_setup_rates(struct ieee80211vap *vap, struct ieee80211com *ic)
682{
683 struct upgt_softc *sc = ic->ic_softc;
684 const struct ieee80211_txparam *tp;
685
686 /*
687 * 0x01 = OFMD6 0x10 = DS1
688 * 0x04 = OFDM9 0x11 = DS2
689 * 0x06 = OFDM12 0x12 = DS5
690 * 0x07 = OFDM18 0x13 = DS11
691 * 0x08 = OFDM24
692 * 0x09 = OFDM36
693 * 0x0a = OFDM48
694 * 0x0b = OFDM54
695 */
696 const uint8_t rateset_auto_11b[] =
697 { 0x13, 0x13, 0x12, 0x11, 0x11, 0x10, 0x10, 0x10 };
698 const uint8_t rateset_auto_11g[] =
699 { 0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06, 0x04, 0x01 };
700 const uint8_t rateset_fix_11bg[] =
701 { 0x10, 0x11, 0x12, 0x13, 0x01, 0x04, 0x06, 0x07,
702 0x08, 0x09, 0x0a, 0x0b };
703
704 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
705
706 /* XXX */
707 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) {
708 /*
709 * Automatic rate control is done by the device.
710 * We just pass the rateset from which the device
711 * will pickup a rate.
712 */
713 if (ic->ic_curmode == IEEE80211_MODE_11B)
714 memcpy(sc->sc_cur_rateset, rateset_auto_11b,
715 sizeof(sc->sc_cur_rateset));
716 if (ic->ic_curmode == IEEE80211_MODE_11G ||
717 ic->ic_curmode == IEEE80211_MODE_AUTO)
718 memcpy(sc->sc_cur_rateset, rateset_auto_11g,
719 sizeof(sc->sc_cur_rateset));
720 } else {
721 /* set a fixed rate */
722 memset(sc->sc_cur_rateset, rateset_fix_11bg[tp->ucastrate],
723 sizeof(sc->sc_cur_rateset));
724 }
725}
726
727static void
728upgt_set_multi(void *arg)
729{
730
731 /* XXX don't know how to set a device. Lack of docs. */
732}
733
734static int
735upgt_transmit(struct ieee80211com *ic, struct mbuf *m)
736{
737 struct upgt_softc *sc = ic->ic_softc;
738 int error;
739
740 UPGT_LOCK(sc);
741 if ((sc->sc_flags & UPGT_FLAG_INITDONE) == 0) {
742 UPGT_UNLOCK(sc);
743 return (ENXIO);
744 }
745 error = mbufq_enqueue(&sc->sc_snd, m);
746 if (error) {
747 UPGT_UNLOCK(sc);
748 return (error);
749 }
750 upgt_start(sc);
751 UPGT_UNLOCK(sc);
752
753 return (0);
754}
755
756static void
757upgt_start(struct upgt_softc *sc)
758{
759 struct upgt_data *data_tx;
760 struct ieee80211_node *ni;
761 struct mbuf *m;
762
763 UPGT_ASSERT_LOCKED(sc);
764
765 if ((sc->sc_flags & UPGT_FLAG_INITDONE) == 0)
766 return;
767
768 while ((m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
769 data_tx = upgt_gettxbuf(sc);
770 if (data_tx == NULL) {
771 mbufq_prepend(&sc->sc_snd, m);
772 break;
773 }
774
775 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;
776 m->m_pkthdr.rcvif = NULL;
777
778 if (upgt_tx_start(sc, m, ni, data_tx) != 0) {
779 if_inc_counter(ni->ni_vap->iv_ifp,
780 IFCOUNTER_OERRORS, 1);
781 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, data_tx, next);
782 UPGT_STAT_INC(sc, st_tx_inactive);
783 ieee80211_free_node(ni);
784 continue;
785 }
786 sc->sc_tx_timer = 5;
787 }
788}
789
790static int
791upgt_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
792 const struct ieee80211_bpf_params *params)
793{
794 struct ieee80211com *ic = ni->ni_ic;
795 struct upgt_softc *sc = ic->ic_softc;
796 struct upgt_data *data_tx = NULL;
797
798 UPGT_LOCK(sc);
799 /* prevent management frames from being sent if we're not ready */
800 if (!(sc->sc_flags & UPGT_FLAG_INITDONE)) {
801 m_freem(m);
802 UPGT_UNLOCK(sc);
803 return ENETDOWN;
804 }
805
806 data_tx = upgt_gettxbuf(sc);
807 if (data_tx == NULL) {
808 m_freem(m);
809 UPGT_UNLOCK(sc);
810 return (ENOBUFS);
811 }
812
813 if (upgt_tx_start(sc, m, ni, data_tx) != 0) {
814 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, data_tx, next);
815 UPGT_STAT_INC(sc, st_tx_inactive);
816 UPGT_UNLOCK(sc);
817 return (EIO);
818 }
819 UPGT_UNLOCK(sc);
820
821 sc->sc_tx_timer = 5;
822 return (0);
823}
824
825static void
826upgt_watchdog(void *arg)
827{
828 struct upgt_softc *sc = arg;
829 struct ieee80211com *ic = &sc->sc_ic;
830
831 if (sc->sc_tx_timer > 0) {
832 if (--sc->sc_tx_timer == 0) {
833 device_printf(sc->sc_dev, "watchdog timeout\n");
834 /* upgt_init(sc); XXX needs a process context ? */
835 counter_u64_add(ic->ic_oerrors, 1);
836 return;
837 }
838 callout_reset(&sc->sc_watchdog_ch, hz, upgt_watchdog, sc);
839 }
840}
841
842static uint32_t
843upgt_mem_alloc(struct upgt_softc *sc)
844{
845 int i;
846
847 for (i = 0; i < sc->sc_memory.pages; i++) {
848 if (sc->sc_memory.page[i].used == 0) {
849 sc->sc_memory.page[i].used = 1;
850 return (sc->sc_memory.page[i].addr);
851 }
852 }
853
854 return (0);
855}
856
857static void
858upgt_scan_start(struct ieee80211com *ic)
859{
860 /* do nothing. */
861}
862
863static void
864upgt_scan_end(struct ieee80211com *ic)
865{
866 /* do nothing. */
867}
868
869static void
870upgt_set_channel(struct ieee80211com *ic)
871{
872 struct upgt_softc *sc = ic->ic_softc;
873
874 UPGT_LOCK(sc);
875 upgt_set_chan(sc, ic->ic_curchan);
876 UPGT_UNLOCK(sc);
877}
878
879static void
880upgt_set_chan(struct upgt_softc *sc, struct ieee80211_channel *c)
881{
882 struct ieee80211com *ic = &sc->sc_ic;
883 struct upgt_data *data_cmd;
884 struct upgt_lmac_mem *mem;
885 struct upgt_lmac_channel *chan;
886 int channel;
887
888 UPGT_ASSERT_LOCKED(sc);
889
890 channel = ieee80211_chan2ieee(ic, c);
891 if (channel == 0 || channel == IEEE80211_CHAN_ANY) {
892 /* XXX should NEVER happen */
893 device_printf(sc->sc_dev,
894 "%s: invalid channel %x\n", __func__, channel);
895 return;
896 }
897
898 DPRINTF(sc, UPGT_DEBUG_STATE, "%s: channel %d\n", __func__, channel);
899
900 data_cmd = upgt_getbuf(sc);
901 if (data_cmd == NULL) {
902 device_printf(sc->sc_dev, "%s: out of buffers.\n", __func__);
903 return;
904 }
905 /*
906 * Transmit the URB containing the CMD data.
907 */
908 memset(data_cmd->buf, 0, MCLBYTES);
909
910 mem = (struct upgt_lmac_mem *)data_cmd->buf;
911 mem->addr = htole32(sc->sc_memaddr_frame_start +
912 UPGT_MEMSIZE_FRAME_HEAD);
913
914 chan = (struct upgt_lmac_channel *)(mem + 1);
915
916 chan->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK;
917 chan->header1.type = UPGT_H1_TYPE_CTRL;
918 chan->header1.len = htole16(
919 sizeof(struct upgt_lmac_channel) - sizeof(struct upgt_lmac_header));
920
921 chan->header2.reqid = htole32(sc->sc_memaddr_frame_start);
922 chan->header2.type = htole16(UPGT_H2_TYPE_CHANNEL);
923 chan->header2.flags = 0;
924
925 chan->unknown1 = htole16(UPGT_CHANNEL_UNKNOWN1);
926 chan->unknown2 = htole16(UPGT_CHANNEL_UNKNOWN2);
927 chan->freq6 = sc->sc_eeprom_freq6[channel];
928 chan->settings = sc->sc_eeprom_freq6_settings;
929 chan->unknown3 = UPGT_CHANNEL_UNKNOWN3;
930
931 memcpy(chan->freq3_1, &sc->sc_eeprom_freq3[channel].data,
932 sizeof(chan->freq3_1));
933 memcpy(chan->freq4, &sc->sc_eeprom_freq4[channel],
934 sizeof(sc->sc_eeprom_freq4[channel]));
935 memcpy(chan->freq3_2, &sc->sc_eeprom_freq3[channel].data,
936 sizeof(chan->freq3_2));
937
938 data_cmd->buflen = sizeof(*mem) + sizeof(*chan);
939
940 mem->chksum = upgt_chksum_le((uint32_t *)chan,
941 data_cmd->buflen - sizeof(*mem));
942
943 upgt_bulk_tx(sc, data_cmd);
944}
945
946static struct ieee80211vap *
947upgt_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
948 enum ieee80211_opmode opmode, int flags,
949 const uint8_t bssid[IEEE80211_ADDR_LEN],
950 const uint8_t mac[IEEE80211_ADDR_LEN])
951{
952 struct upgt_vap *uvp;
953 struct ieee80211vap *vap;
954
955 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */
956 return NULL;
957 uvp = malloc(sizeof(struct upgt_vap), M_80211_VAP, M_WAITOK | M_ZERO);
958 vap = &uvp->vap;
959 /* enable s/w bmiss handling for sta mode */
960
961 if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
962 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
963 /* out of memory */
964 free(uvp, M_80211_VAP);
965 return (NULL);
966 }
967
968 /* override state transition machine */
969 uvp->newstate = vap->iv_newstate;
970 vap->iv_newstate = upgt_newstate;
971
972 /* setup device rates */
973 upgt_setup_rates(vap, ic);
974
975 /* complete setup */
976 ieee80211_vap_attach(vap, ieee80211_media_change,
977 ieee80211_media_status, mac);
978 ic->ic_opmode = opmode;
979 return vap;
980}
981
982static int
983upgt_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
984{
985 struct upgt_vap *uvp = UPGT_VAP(vap);
986 struct ieee80211com *ic = vap->iv_ic;
987 struct upgt_softc *sc = ic->ic_softc;
988
989 /* do it in a process context */
990 sc->sc_state = nstate;
991
992 IEEE80211_UNLOCK(ic);
993 UPGT_LOCK(sc);
994 callout_stop(&sc->sc_led_ch);
995 callout_stop(&sc->sc_watchdog_ch);
996
997 switch (nstate) {
998 case IEEE80211_S_INIT:
999 /* do not accept any frames if the device is down */
1000 (void)upgt_set_macfilter(sc, sc->sc_state);
1001 upgt_set_led(sc, UPGT_LED_OFF);
1002 break;
1003 case IEEE80211_S_SCAN:
1004 upgt_set_chan(sc, ic->ic_curchan);
1005 break;
1006 case IEEE80211_S_AUTH:
1007 upgt_set_chan(sc, ic->ic_curchan);
1008 break;
1009 case IEEE80211_S_ASSOC:
1010 break;
1011 case IEEE80211_S_RUN:
1012 upgt_set_macfilter(sc, sc->sc_state);
1013 upgt_set_led(sc, UPGT_LED_ON);
1014 break;
1015 default:
1016 break;
1017 }
1018 UPGT_UNLOCK(sc);
1019 IEEE80211_LOCK(ic);
1020 return (uvp->newstate(vap, nstate, arg));
1021}
1022
1023static void
1024upgt_vap_delete(struct ieee80211vap *vap)
1025{
1026 struct upgt_vap *uvp = UPGT_VAP(vap);
1027
1028 ieee80211_vap_detach(vap);
1029 free(uvp, M_80211_VAP);
1030}
1031
1032static void
1033upgt_update_mcast(struct ieee80211com *ic)
1034{
1035 struct upgt_softc *sc = ic->ic_softc;
1036
1037 upgt_set_multi(sc);
1038}
1039
1040static int
1041upgt_eeprom_parse(struct upgt_softc *sc)
1042{
1043 struct ieee80211com *ic = &sc->sc_ic;
1044 struct upgt_eeprom_header *eeprom_header;
1045 struct upgt_eeprom_option *eeprom_option;
1046 uint16_t option_len;
1047 uint16_t option_type;
1048 uint16_t preamble_len;
1049 int option_end = 0;
1050
1051 /* calculate eeprom options start offset */
1052 eeprom_header = (struct upgt_eeprom_header *)sc->sc_eeprom;
1053 preamble_len = le16toh(eeprom_header->preamble_len);
1054 eeprom_option = (struct upgt_eeprom_option *)(sc->sc_eeprom +
1055 (sizeof(struct upgt_eeprom_header) + preamble_len));
1056
1057 while (!option_end) {
1058
1059 /* sanity check */
1060 if (eeprom_option >= (struct upgt_eeprom_option *)
1061 (sc->sc_eeprom + UPGT_EEPROM_SIZE)) {
1062 return (EINVAL);
1063 }
1064
1065 /* the eeprom option length is stored in words */
1066 option_len =
1067 (le16toh(eeprom_option->len) - 1) * sizeof(uint16_t);
1068 option_type =
1069 le16toh(eeprom_option->type);
1070
1071 /* sanity check */
1072 if (option_len == 0 || option_len >= UPGT_EEPROM_SIZE)
1073 return (EINVAL);
1074
1075 switch (option_type) {
1076 case UPGT_EEPROM_TYPE_NAME:
1077 DPRINTF(sc, UPGT_DEBUG_FW,
1078 "EEPROM name len=%d\n", option_len);
1079 break;
1080 case UPGT_EEPROM_TYPE_SERIAL:
1081 DPRINTF(sc, UPGT_DEBUG_FW,
1082 "EEPROM serial len=%d\n", option_len);
1083 break;
1084 case UPGT_EEPROM_TYPE_MAC:
1085 DPRINTF(sc, UPGT_DEBUG_FW,
1086 "EEPROM mac len=%d\n", option_len);
1087
1088 IEEE80211_ADDR_COPY(ic->ic_macaddr,
1089 eeprom_option->data);
1090 break;
1091 case UPGT_EEPROM_TYPE_HWRX:
1092 DPRINTF(sc, UPGT_DEBUG_FW,
1093 "EEPROM hwrx len=%d\n", option_len);
1094
1095 upgt_eeprom_parse_hwrx(sc, eeprom_option->data);
1096 break;
1097 case UPGT_EEPROM_TYPE_CHIP:
1098 DPRINTF(sc, UPGT_DEBUG_FW,
1099 "EEPROM chip len=%d\n", option_len);
1100 break;
1101 case UPGT_EEPROM_TYPE_FREQ3:
1102 DPRINTF(sc, UPGT_DEBUG_FW,
1103 "EEPROM freq3 len=%d\n", option_len);
1104
1105 upgt_eeprom_parse_freq3(sc, eeprom_option->data,
1106 option_len);
1107 break;
1108 case UPGT_EEPROM_TYPE_FREQ4:
1109 DPRINTF(sc, UPGT_DEBUG_FW,
1110 "EEPROM freq4 len=%d\n", option_len);
1111
1112 upgt_eeprom_parse_freq4(sc, eeprom_option->data,
1113 option_len);
1114 break;
1115 case UPGT_EEPROM_TYPE_FREQ5:
1116 DPRINTF(sc, UPGT_DEBUG_FW,
1117 "EEPROM freq5 len=%d\n", option_len);
1118 break;
1119 case UPGT_EEPROM_TYPE_FREQ6:
1120 DPRINTF(sc, UPGT_DEBUG_FW,
1121 "EEPROM freq6 len=%d\n", option_len);
1122
1123 upgt_eeprom_parse_freq6(sc, eeprom_option->data,
1124 option_len);
1125 break;
1126 case UPGT_EEPROM_TYPE_END:
1127 DPRINTF(sc, UPGT_DEBUG_FW,
1128 "EEPROM end len=%d\n", option_len);
1129 option_end = 1;
1130 break;
1131 case UPGT_EEPROM_TYPE_OFF:
1132 DPRINTF(sc, UPGT_DEBUG_FW,
1133 "%s: EEPROM off without end option\n", __func__);
1134 return (EIO);
1135 default:
1136 DPRINTF(sc, UPGT_DEBUG_FW,
1137 "EEPROM unknown type 0x%04x len=%d\n",
1138 option_type, option_len);
1139 break;
1140 }
1141
1142 /* jump to next EEPROM option */
1143 eeprom_option = (struct upgt_eeprom_option *)
1144 (eeprom_option->data + option_len);
1145 }
1146 return (0);
1147}
1148
1149static void
1150upgt_eeprom_parse_freq3(struct upgt_softc *sc, uint8_t *data, int len)
1151{
1152 struct upgt_eeprom_freq3_header *freq3_header;
1153 struct upgt_lmac_freq3 *freq3;
1154 int i;
1155 int elements;
1156 int flags;
1157 unsigned channel;
1158
1159 freq3_header = (struct upgt_eeprom_freq3_header *)data;
1160 freq3 = (struct upgt_lmac_freq3 *)(freq3_header + 1);
1161
1162 flags = freq3_header->flags;
1163 elements = freq3_header->elements;
1164
1165 DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d\n",
1166 flags, elements);
1167
1168 if (elements >= (int)(UPGT_EEPROM_SIZE / sizeof(freq3[0])))
1169 return;
1170
1171 for (i = 0; i < elements; i++) {
1172 channel = ieee80211_mhz2ieee(le16toh(freq3[i].freq), 0);
1173 if (channel >= IEEE80211_CHAN_MAX)
1174 continue;
1175
1176 sc->sc_eeprom_freq3[channel] = freq3[i];
1177
1178 DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1179 le16toh(sc->sc_eeprom_freq3[channel].freq), channel);
1180 }
1181}
1182
1183void
1184upgt_eeprom_parse_freq4(struct upgt_softc *sc, uint8_t *data, int len)
1185{
1186 struct upgt_eeprom_freq4_header *freq4_header;
1187 struct upgt_eeprom_freq4_1 *freq4_1;
1188 struct upgt_eeprom_freq4_2 *freq4_2;
1189 int i;
1190 int j;
1191 int elements;
1192 int settings;
1193 int flags;
1194 unsigned channel;
1195
1196 freq4_header = (struct upgt_eeprom_freq4_header *)data;
1197 freq4_1 = (struct upgt_eeprom_freq4_1 *)(freq4_header + 1);
1198 flags = freq4_header->flags;
1199 elements = freq4_header->elements;
1200 settings = freq4_header->settings;
1201
1202 /* we need this value later */
1203 sc->sc_eeprom_freq6_settings = freq4_header->settings;
1204
1205 DPRINTF(sc, UPGT_DEBUG_FW, "flags=0x%02x elements=%d settings=%d\n",
1206 flags, elements, settings);
1207
1208 if (elements >= (int)(UPGT_EEPROM_SIZE / sizeof(freq4_1[0])))
1209 return;
1210
1211 for (i = 0; i < elements; i++) {
1212 channel = ieee80211_mhz2ieee(le16toh(freq4_1[i].freq), 0);
1213 if (channel >= IEEE80211_CHAN_MAX)
1214 continue;
1215
1216 freq4_2 = (struct upgt_eeprom_freq4_2 *)freq4_1[i].data;
1217 for (j = 0; j < settings; j++) {
1218 sc->sc_eeprom_freq4[channel][j].cmd = freq4_2[j];
1219 sc->sc_eeprom_freq4[channel][j].pad = 0;
1220 }
1221
1222 DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1223 le16toh(freq4_1[i].freq), channel);
1224 }
1225}
1226
1227void
1228upgt_eeprom_parse_freq6(struct upgt_softc *sc, uint8_t *data, int len)
1229{
1230 struct upgt_lmac_freq6 *freq6;
1231 int i;
1232 int elements;
1233 unsigned channel;
1234
1235 freq6 = (struct upgt_lmac_freq6 *)data;
1236 elements = len / sizeof(struct upgt_lmac_freq6);
1237
1238 DPRINTF(sc, UPGT_DEBUG_FW, "elements=%d\n", elements);
1239
1240 if (elements >= (int)(UPGT_EEPROM_SIZE / sizeof(freq6[0])))
1241 return;
1242
1243 for (i = 0; i < elements; i++) {
1244 channel = ieee80211_mhz2ieee(le16toh(freq6[i].freq), 0);
1245 if (channel >= IEEE80211_CHAN_MAX)
1246 continue;
1247
1248 sc->sc_eeprom_freq6[channel] = freq6[i];
1249
1250 DPRINTF(sc, UPGT_DEBUG_FW, "frequence=%d, channel=%d\n",
1251 le16toh(sc->sc_eeprom_freq6[channel].freq), channel);
1252 }
1253}
1254
1255static void
1256upgt_eeprom_parse_hwrx(struct upgt_softc *sc, uint8_t *data)
1257{
1258 struct upgt_eeprom_option_hwrx *option_hwrx;
1259
1260 option_hwrx = (struct upgt_eeprom_option_hwrx *)data;
1261
1262 sc->sc_eeprom_hwrx = option_hwrx->rxfilter - UPGT_EEPROM_RX_CONST;
1263
1264 DPRINTF(sc, UPGT_DEBUG_FW, "hwrx option value=0x%04x\n",
1265 sc->sc_eeprom_hwrx);
1266}
1267
1268static int
1269upgt_eeprom_read(struct upgt_softc *sc)
1270{
1271 struct upgt_data *data_cmd;
1272 struct upgt_lmac_mem *mem;
1273 struct upgt_lmac_eeprom *eeprom;
1274 int block, error, offset;
1275
1276 UPGT_LOCK(sc);
1277 usb_pause_mtx(&sc->sc_mtx, 100);
1278
1279 offset = 0;
1280 block = UPGT_EEPROM_BLOCK_SIZE;
1281 while (offset < UPGT_EEPROM_SIZE) {
1282 DPRINTF(sc, UPGT_DEBUG_FW,
1283 "request EEPROM block (offset=%d, len=%d)\n", offset, block);
1284
1285 data_cmd = upgt_getbuf(sc);
1286 if (data_cmd == NULL) {
1287 UPGT_UNLOCK(sc);
1288 return (ENOBUFS);
1289 }
1290
1291 /*
1292 * Transmit the URB containing the CMD data.
1293 */
1294 memset(data_cmd->buf, 0, MCLBYTES);
1295
1296 mem = (struct upgt_lmac_mem *)data_cmd->buf;
1297 mem->addr = htole32(sc->sc_memaddr_frame_start +
1298 UPGT_MEMSIZE_FRAME_HEAD);
1299
1300 eeprom = (struct upgt_lmac_eeprom *)(mem + 1);
1301 eeprom->header1.flags = 0;
1302 eeprom->header1.type = UPGT_H1_TYPE_CTRL;
1303 eeprom->header1.len = htole16((
1304 sizeof(struct upgt_lmac_eeprom) -
1305 sizeof(struct upgt_lmac_header)) + block);
1306
1307 eeprom->header2.reqid = htole32(sc->sc_memaddr_frame_start);
1308 eeprom->header2.type = htole16(UPGT_H2_TYPE_EEPROM);
1309 eeprom->header2.flags = 0;
1310
1311 eeprom->offset = htole16(offset);
1312 eeprom->len = htole16(block);
1313
1314 data_cmd->buflen = sizeof(*mem) + sizeof(*eeprom) + block;
1315
1316 mem->chksum = upgt_chksum_le((uint32_t *)eeprom,
1317 data_cmd->buflen - sizeof(*mem));
1318 upgt_bulk_tx(sc, data_cmd);
1319
1320 error = mtx_sleep(sc, &sc->sc_mtx, 0, "eeprom_request", hz);
1321 if (error != 0) {
1322 device_printf(sc->sc_dev,
1323 "timeout while waiting for EEPROM data\n");
1324 UPGT_UNLOCK(sc);
1325 return (EIO);
1326 }
1327
1328 offset += block;
1329 if (UPGT_EEPROM_SIZE - offset < block)
1330 block = UPGT_EEPROM_SIZE - offset;
1331 }
1332
1333 UPGT_UNLOCK(sc);
1334 return (0);
1335}
1336
1337/*
1338 * When a rx data came in the function returns a mbuf and a rssi values.
1339 */
1340static struct mbuf *
1341upgt_rxeof(struct usb_xfer *xfer, struct upgt_data *data, int *rssi)
1342{
1343 struct mbuf *m = NULL;
1344 struct upgt_softc *sc = usbd_xfer_softc(xfer);
1345 struct upgt_lmac_header *header;
1346 struct upgt_lmac_eeprom *eeprom;
1347 uint8_t h1_type;
1348 uint16_t h2_type;
1349 int actlen, sumlen;
1350
1351 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1352
1353 UPGT_ASSERT_LOCKED(sc);
1354
1355 if (actlen < 1)
1356 return (NULL);
1357
1358 /* Check only at the very beginning. */
1359 if (!(sc->sc_flags & UPGT_FLAG_FWLOADED) &&
1360 (memcmp(data->buf, "OK", 2) == 0)) {
1361 sc->sc_flags |= UPGT_FLAG_FWLOADED;
1362 wakeup_one(sc);
1363 return (NULL);
1364 }
1365
1366 if (actlen < (int)UPGT_RX_MINSZ)
1367 return (NULL);
1368
1369 /*
1370 * Check what type of frame came in.
1371 */
1372 header = (struct upgt_lmac_header *)(data->buf + 4);
1373
1374 h1_type = header->header1.type;
1375 h2_type = le16toh(header->header2.type);
1376
1377 if (h1_type == UPGT_H1_TYPE_CTRL && h2_type == UPGT_H2_TYPE_EEPROM) {
1378 eeprom = (struct upgt_lmac_eeprom *)(data->buf + 4);
1379 uint16_t eeprom_offset = le16toh(eeprom->offset);
1380 uint16_t eeprom_len = le16toh(eeprom->len);
1381
1382 DPRINTF(sc, UPGT_DEBUG_FW,
1383 "received EEPROM block (offset=%d, len=%d)\n",
1384 eeprom_offset, eeprom_len);
1385
1386 memcpy(sc->sc_eeprom + eeprom_offset,
1387 data->buf + sizeof(struct upgt_lmac_eeprom) + 4,
1388 eeprom_len);
1389
1390 /* EEPROM data has arrived in time, wakeup. */
1391 wakeup(sc);
1392 } else if (h1_type == UPGT_H1_TYPE_CTRL &&
1393 h2_type == UPGT_H2_TYPE_TX_DONE) {
1394 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: received 802.11 TX done\n",
1395 __func__);
1396 upgt_tx_done(sc, data->buf + 4);
1397 } else if (h1_type == UPGT_H1_TYPE_RX_DATA ||
1398 h1_type == UPGT_H1_TYPE_RX_DATA_MGMT) {
1399 DPRINTF(sc, UPGT_DEBUG_RECV, "%s: received 802.11 RX data\n",
1400 __func__);
1401 m = upgt_rx(sc, data->buf + 4, le16toh(header->header1.len),
1402 rssi);
1403 } else if (h1_type == UPGT_H1_TYPE_CTRL &&
1404 h2_type == UPGT_H2_TYPE_STATS) {
1405 DPRINTF(sc, UPGT_DEBUG_STAT, "%s: received statistic data\n",
1406 __func__);
1407 /* TODO: what could we do with the statistic data? */
1408 } else {
1409 /* ignore unknown frame types */
1410 DPRINTF(sc, UPGT_DEBUG_INTR,
1411 "received unknown frame type 0x%02x\n",
1412 header->header1.type);
1413 }
1414 return (m);
1415}
1416
1417/*
1418 * The firmware awaits a checksum for each frame we send to it.
1419 * The algorithm used therefor is uncommon but somehow similar to CRC32.
1420 */
1421static uint32_t
1422upgt_chksum_le(const uint32_t *buf, size_t size)
1423{
1424 size_t i;
1425 uint32_t crc = 0;
1426
1427 for (i = 0; i < size; i += sizeof(uint32_t)) {
1428 crc = htole32(crc ^ *buf++);
1429 crc = htole32((crc >> 5) ^ (crc << 3));
1430 }
1431
1432 return (crc);
1433}
1434
1435static struct mbuf *
1436upgt_rx(struct upgt_softc *sc, uint8_t *data, int pkglen, int *rssi)
1437{
1438 struct ieee80211com *ic = &sc->sc_ic;
1439 struct upgt_lmac_rx_desc *rxdesc;
1440 struct mbuf *m;
1441
1442 /*
1443 * don't pass packets to the ieee80211 framework if the driver isn't
1444 * RUNNING.
1445 */
1446 if (!(sc->sc_flags & UPGT_FLAG_INITDONE))
1447 return (NULL);
1448
1449 /* access RX packet descriptor */
1450 rxdesc = (struct upgt_lmac_rx_desc *)data;
1451
1452 /* create mbuf which is suitable for strict alignment archs */
1453 KASSERT((pkglen + ETHER_ALIGN) < MCLBYTES,
1454 ("A current mbuf storage is small (%d)", pkglen + ETHER_ALIGN));
1455 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
1456 if (m == NULL) {
1457 device_printf(sc->sc_dev, "could not create RX mbuf\n");
1458 return (NULL);
1459 }
1460 m_adj(m, ETHER_ALIGN);
1461 memcpy(mtod(m, char *), rxdesc->data, pkglen);
1462 /* trim FCS */
1463 m->m_len = m->m_pkthdr.len = pkglen - IEEE80211_CRC_LEN;
1464
1465 if (ieee80211_radiotap_active(ic)) {
1466 struct upgt_rx_radiotap_header *tap = &sc->sc_rxtap;
1467
1468 tap->wr_flags = 0;
1469 tap->wr_rate = upgt_rx_rate(sc, rxdesc->rate);
1470 tap->wr_antsignal = rxdesc->rssi;
1471 }
1472
1473 DPRINTF(sc, UPGT_DEBUG_RX_PROC, "%s: RX done\n", __func__);
1474 *rssi = rxdesc->rssi;
1475 return (m);
1476}
1477
1478static uint8_t
1479upgt_rx_rate(struct upgt_softc *sc, const int rate)
1480{
1481 struct ieee80211com *ic = &sc->sc_ic;
1482 static const uint8_t cck_upgt2rate[4] = { 2, 4, 11, 22 };
1483 static const uint8_t ofdm_upgt2rate[12] =
1484 { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 };
1485
1486 if (ic->ic_curmode == IEEE80211_MODE_11B &&
1487 !(rate < 0 || rate > 3))
1488 return cck_upgt2rate[rate & 0xf];
1489
1490 if (ic->ic_curmode == IEEE80211_MODE_11G &&
1491 !(rate < 0 || rate > 11))
1492 return ofdm_upgt2rate[rate & 0xf];
1493
1494 return (0);
1495}
1496
1497static void
1498upgt_tx_done(struct upgt_softc *sc, uint8_t *data)
1499{
1500 struct upgt_lmac_tx_done_desc *desc;
1501 int i, freed = 0;
1502
1503 UPGT_ASSERT_LOCKED(sc);
1504
1505 desc = (struct upgt_lmac_tx_done_desc *)data;
1506
1507 for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1508 struct upgt_data *data_tx = &sc->sc_tx_data[i];
1509
1510 if (data_tx->addr == le32toh(desc->header2.reqid)) {
1511 upgt_mem_free(sc, data_tx->addr);
1512 data_tx->ni = NULL;
1513 data_tx->addr = 0;
1514 data_tx->m = NULL;
1515
1516 DPRINTF(sc, UPGT_DEBUG_TX_PROC,
1517 "TX done: memaddr=0x%08x, status=0x%04x, rssi=%d, ",
1518 le32toh(desc->header2.reqid),
1519 le16toh(desc->status), le16toh(desc->rssi));
1520 DPRINTF(sc, UPGT_DEBUG_TX_PROC, "seq=%d\n",
1521 le16toh(desc->seq));
1522
1523 freed++;
1524 }
1525 }
1526
1527 if (freed != 0) {
1528 UPGT_UNLOCK(sc);
1529 sc->sc_tx_timer = 0;
1530 upgt_start(sc);
1531 UPGT_LOCK(sc);
1532 }
1533}
1534
1535static void
1536upgt_mem_free(struct upgt_softc *sc, uint32_t addr)
1537{
1538 int i;
1539
1540 for (i = 0; i < sc->sc_memory.pages; i++) {
1541 if (sc->sc_memory.page[i].addr == addr) {
1542 sc->sc_memory.page[i].used = 0;
1543 return;
1544 }
1545 }
1546
1547 device_printf(sc->sc_dev,
1548 "could not free memory address 0x%08x\n", addr);
1549}
1550
1551static int
1552upgt_fw_load(struct upgt_softc *sc)
1553{
1554 const struct firmware *fw;
1555 struct upgt_data *data_cmd;
1556 struct upgt_fw_x2_header *x2;
1557 char start_fwload_cmd[] = { 0x3c, 0x0d };
1558 int error = 0;
1559 size_t offset;
1560 int bsize;
1561 int n;
1562 uint32_t crc32;
1563
1564 fw = firmware_get(upgt_fwname);
1565 if (fw == NULL) {
1566 device_printf(sc->sc_dev, "could not read microcode %s\n",
1567 upgt_fwname);
1568 return (EIO);
1569 }
1570
1571 UPGT_LOCK(sc);
1572
1573 /* send firmware start load command */
1574 data_cmd = upgt_getbuf(sc);
1575 if (data_cmd == NULL) {
1576 error = ENOBUFS;
1577 goto fail;
1578 }
1579 data_cmd->buflen = sizeof(start_fwload_cmd);
1580 memcpy(data_cmd->buf, start_fwload_cmd, data_cmd->buflen);
1581 upgt_bulk_tx(sc, data_cmd);
1582
1583 /* send X2 header */
1584 data_cmd = upgt_getbuf(sc);
1585 if (data_cmd == NULL) {
1586 error = ENOBUFS;
1587 goto fail;
1588 }
1589 data_cmd->buflen = sizeof(struct upgt_fw_x2_header);
1590 x2 = (struct upgt_fw_x2_header *)data_cmd->buf;
1591 memcpy(x2->signature, UPGT_X2_SIGNATURE, UPGT_X2_SIGNATURE_SIZE);
1592 x2->startaddr = htole32(UPGT_MEMADDR_FIRMWARE_START);
1593 x2->len = htole32(fw->datasize);
1594 x2->crc = upgt_crc32_le((uint8_t *)data_cmd->buf +
1595 UPGT_X2_SIGNATURE_SIZE,
1596 sizeof(struct upgt_fw_x2_header) - UPGT_X2_SIGNATURE_SIZE -
1597 sizeof(uint32_t));
1598 upgt_bulk_tx(sc, data_cmd);
1599
1600 /* download firmware */
1601 for (offset = 0; offset < fw->datasize; offset += bsize) {
1602 if (fw->datasize - offset > UPGT_FW_BLOCK_SIZE)
1603 bsize = UPGT_FW_BLOCK_SIZE;
1604 else
1605 bsize = fw->datasize - offset;
1606
1607 data_cmd = upgt_getbuf(sc);
1608 if (data_cmd == NULL) {
1609 error = ENOBUFS;
1610 goto fail;
1611 }
1612 n = upgt_fw_copy((const uint8_t *)fw->data + offset,
1613 data_cmd->buf, bsize);
1614 data_cmd->buflen = bsize;
1615 upgt_bulk_tx(sc, data_cmd);
1616
1617 DPRINTF(sc, UPGT_DEBUG_FW, "FW offset=%d, read=%d, sent=%d\n",
1618 offset, n, bsize);
1619 bsize = n;
1620 }
1621 DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware downloaded\n", __func__);
1622
1623 /* load firmware */
1624 data_cmd = upgt_getbuf(sc);
1625 if (data_cmd == NULL) {
1626 error = ENOBUFS;
1627 goto fail;
1628 }
1629 crc32 = upgt_crc32_le(fw->data, fw->datasize);
1630 *((uint32_t *)(data_cmd->buf) ) = crc32;
1631 *((uint8_t *)(data_cmd->buf) + 4) = 'g';
1632 *((uint8_t *)(data_cmd->buf) + 5) = '\r';
1633 data_cmd->buflen = 6;
1634 upgt_bulk_tx(sc, data_cmd);
1635
1636 /* waiting 'OK' response. */
1637 usbd_transfer_start(sc->sc_xfer[UPGT_BULK_RX]);
1638 error = mtx_sleep(sc, &sc->sc_mtx, 0, "upgtfw", 2 * hz);
1639 if (error != 0) {
1640 device_printf(sc->sc_dev, "firmware load failed\n");
1641 error = EIO;
1642 }
1643
1644 DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware loaded\n", __func__);
1645fail:
1646 UPGT_UNLOCK(sc);
1647 firmware_put(fw, FIRMWARE_UNLOAD);
1648 return (error);
1649}
1650
1651static uint32_t
1652upgt_crc32_le(const void *buf, size_t size)
1653{
1654 uint32_t crc;
1655
1656 crc = ether_crc32_le(buf, size);
1657
1658 /* apply final XOR value as common for CRC-32 */
1659 crc = htole32(crc ^ 0xffffffffU);
1660
1661 return (crc);
1662}
1663
1664/*
1665 * While copying the version 2 firmware, we need to replace two characters:
1666 *
1667 * 0x7e -> 0x7d 0x5e
1668 * 0x7d -> 0x7d 0x5d
1669 */
1670static int
1671upgt_fw_copy(const uint8_t *src, char *dst, int size)
1672{
1673 int i, j;
1674
1675 for (i = 0, j = 0; i < size && j < size; i++) {
1676 switch (src[i]) {
1677 case 0x7e:
1678 dst[j] = 0x7d;
1679 j++;
1680 dst[j] = 0x5e;
1681 j++;
1682 break;
1683 case 0x7d:
1684 dst[j] = 0x7d;
1685 j++;
1686 dst[j] = 0x5d;
1687 j++;
1688 break;
1689 default:
1690 dst[j] = src[i];
1691 j++;
1692 break;
1693 }
1694 }
1695
1696 return (i);
1697}
1698
1699static int
1700upgt_mem_init(struct upgt_softc *sc)
1701{
1702 int i;
1703
1704 for (i = 0; i < UPGT_MEMORY_MAX_PAGES; i++) {
1705 sc->sc_memory.page[i].used = 0;
1706
1707 if (i == 0) {
1708 /*
1709 * The first memory page is always reserved for
1710 * command data.
1711 */
1712 sc->sc_memory.page[i].addr =
1713 sc->sc_memaddr_frame_start + MCLBYTES;
1714 } else {
1715 sc->sc_memory.page[i].addr =
1716 sc->sc_memory.page[i - 1].addr + MCLBYTES;
1717 }
1718
1719 if (sc->sc_memory.page[i].addr + MCLBYTES >=
1720 sc->sc_memaddr_frame_end)
1721 break;
1722
1723 DPRINTF(sc, UPGT_DEBUG_FW, "memory address page %d=0x%08x\n",
1724 i, sc->sc_memory.page[i].addr);
1725 }
1726
1727 sc->sc_memory.pages = i;
1728
1729 DPRINTF(sc, UPGT_DEBUG_FW, "memory pages=%d\n", sc->sc_memory.pages);
1730 return (0);
1731}
1732
1733static int
1734upgt_fw_verify(struct upgt_softc *sc)
1735{
1736 const struct firmware *fw;
1737 const struct upgt_fw_bra_option *bra_opt;
1738 const struct upgt_fw_bra_descr *descr;
1739 const uint8_t *p;
1740 const uint32_t *uc;
1741 uint32_t bra_option_type, bra_option_len;
1742 size_t offset;
1743 int bra_end = 0;
1744 int error = 0;
1745
1746 fw = firmware_get(upgt_fwname);
1747 if (fw == NULL) {
1748 device_printf(sc->sc_dev, "could not read microcode %s\n",
1749 upgt_fwname);
1750 return EIO;
1751 }
1752
1753 /*
1754 * Seek to beginning of Boot Record Area (BRA).
1755 */
1756 for (offset = 0; offset < fw->datasize; offset += sizeof(*uc)) {
1757 uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
1758 if (*uc == 0)
1759 break;
1760 }
1761 for (; offset < fw->datasize; offset += sizeof(*uc)) {
1762 uc = (const uint32_t *)((const uint8_t *)fw->data + offset);
1763 if (*uc != 0)
1764 break;
1765 }
1766 if (offset == fw->datasize) {
1767 device_printf(sc->sc_dev,
1768 "firmware Boot Record Area not found\n");
1769 error = EIO;
1770 goto fail;
1771 }
1772
1773 DPRINTF(sc, UPGT_DEBUG_FW,
1774 "firmware Boot Record Area found at offset %d\n", offset);
1775
1776 /*
1777 * Parse Boot Record Area (BRA) options.
1778 */
1779 while (offset < fw->datasize && bra_end == 0) {
1780 /* get current BRA option */
1781 p = (const uint8_t *)fw->data + offset;
1782 bra_opt = (const struct upgt_fw_bra_option *)p;
1783 bra_option_type = le32toh(bra_opt->type);
1784 bra_option_len = le32toh(bra_opt->len) * sizeof(*uc);
1785
1786 switch (bra_option_type) {
1787 case UPGT_BRA_TYPE_FW:
1788 DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_FW len=%d\n",
1789 bra_option_len);
1790
1791 if (bra_option_len != UPGT_BRA_FWTYPE_SIZE) {
1792 device_printf(sc->sc_dev,
1793 "wrong UPGT_BRA_TYPE_FW len\n");
1794 error = EIO;
1795 goto fail;
1796 }
1797 if (memcmp(UPGT_BRA_FWTYPE_LM86, bra_opt->data,
1798 bra_option_len) == 0) {
1799 sc->sc_fw_type = UPGT_FWTYPE_LM86;
1800 break;
1801 }
1802 if (memcmp(UPGT_BRA_FWTYPE_LM87, bra_opt->data,
1803 bra_option_len) == 0) {
1804 sc->sc_fw_type = UPGT_FWTYPE_LM87;
1805 break;
1806 }
1807 device_printf(sc->sc_dev,
1808 "unsupported firmware type\n");
1809 error = EIO;
1810 goto fail;
1811 case UPGT_BRA_TYPE_VERSION:
1812 DPRINTF(sc, UPGT_DEBUG_FW,
1813 "UPGT_BRA_TYPE_VERSION len=%d\n", bra_option_len);
1814 break;
1815 case UPGT_BRA_TYPE_DEPIF:
1816 DPRINTF(sc, UPGT_DEBUG_FW,
1817 "UPGT_BRA_TYPE_DEPIF len=%d\n", bra_option_len);
1818 break;
1819 case UPGT_BRA_TYPE_EXPIF:
1820 DPRINTF(sc, UPGT_DEBUG_FW,
1821 "UPGT_BRA_TYPE_EXPIF len=%d\n", bra_option_len);
1822 break;
1823 case UPGT_BRA_TYPE_DESCR:
1824 DPRINTF(sc, UPGT_DEBUG_FW,
1825 "UPGT_BRA_TYPE_DESCR len=%d\n", bra_option_len);
1826
1827 descr = (const struct upgt_fw_bra_descr *)bra_opt->data;
1828
1829 sc->sc_memaddr_frame_start =
1830 le32toh(descr->memaddr_space_start);
1831 sc->sc_memaddr_frame_end =
1832 le32toh(descr->memaddr_space_end);
1833
1834 DPRINTF(sc, UPGT_DEBUG_FW,
1835 "memory address space start=0x%08x\n",
1836 sc->sc_memaddr_frame_start);
1837 DPRINTF(sc, UPGT_DEBUG_FW,
1838 "memory address space end=0x%08x\n",
1839 sc->sc_memaddr_frame_end);
1840 break;
1841 case UPGT_BRA_TYPE_END:
1842 DPRINTF(sc, UPGT_DEBUG_FW, "UPGT_BRA_TYPE_END len=%d\n",
1843 bra_option_len);
1844 bra_end = 1;
1845 break;
1846 default:
1847 DPRINTF(sc, UPGT_DEBUG_FW, "unknown BRA option len=%d\n",
1848 bra_option_len);
1849 error = EIO;
1850 goto fail;
1851 }
1852
1853 /* jump to next BRA option */
1854 offset += sizeof(struct upgt_fw_bra_option) + bra_option_len;
1855 }
1856
1857 DPRINTF(sc, UPGT_DEBUG_FW, "%s: firmware verified", __func__);
1858fail:
1859 firmware_put(fw, FIRMWARE_UNLOAD);
1860 return (error);
1861}
1862
1863static void
1864upgt_bulk_tx(struct upgt_softc *sc, struct upgt_data *data)
1865{
1866
1867 UPGT_ASSERT_LOCKED(sc);
1868
1869 STAILQ_INSERT_TAIL(&sc->sc_tx_pending, data, next);
1870 UPGT_STAT_INC(sc, st_tx_pending);
1871 usbd_transfer_start(sc->sc_xfer[UPGT_BULK_TX]);
1872}
1873
1874static int
1875upgt_device_reset(struct upgt_softc *sc)
1876{
1877 struct upgt_data *data;
1878 char init_cmd[] = { 0x7e, 0x7e, 0x7e, 0x7e };
1879
1880 UPGT_LOCK(sc);
1881
1882 data = upgt_getbuf(sc);
1883 if (data == NULL) {
1884 UPGT_UNLOCK(sc);
1885 return (ENOBUFS);
1886 }
1887 memcpy(data->buf, init_cmd, sizeof(init_cmd));
1888 data->buflen = sizeof(init_cmd);
1889 upgt_bulk_tx(sc, data);
1890 usb_pause_mtx(&sc->sc_mtx, 100);
1891
1892 UPGT_UNLOCK(sc);
1893 DPRINTF(sc, UPGT_DEBUG_FW, "%s: device initialized\n", __func__);
1894 return (0);
1895}
1896
1897static int
1898upgt_alloc_tx(struct upgt_softc *sc)
1899{
1900 int i;
1901
1902 STAILQ_INIT(&sc->sc_tx_active);
1903 STAILQ_INIT(&sc->sc_tx_inactive);
1904 STAILQ_INIT(&sc->sc_tx_pending);
1905
1906 for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1907 struct upgt_data *data = &sc->sc_tx_data[i];
1908 data->buf = ((uint8_t *)sc->sc_tx_dma_buf) + (i * MCLBYTES);
1909 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data, next);
1910 UPGT_STAT_INC(sc, st_tx_inactive);
1911 }
1912
1913 return (0);
1914}
1915
1916static int
1917upgt_alloc_rx(struct upgt_softc *sc)
1918{
1919 int i;
1920
1921 STAILQ_INIT(&sc->sc_rx_active);
1922 STAILQ_INIT(&sc->sc_rx_inactive);
1923
1924 for (i = 0; i < UPGT_RX_MAXCOUNT; i++) {
1925 struct upgt_data *data = &sc->sc_rx_data[i];
1926 data->buf = ((uint8_t *)sc->sc_rx_dma_buf) + (i * MCLBYTES);
1927 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
1928 }
1929 return (0);
1930}
1931
1932static int
1933upgt_detach(device_t dev)
1934{
1935 struct upgt_softc *sc = device_get_softc(dev);
1936 struct ieee80211com *ic = &sc->sc_ic;
1937 unsigned int x;
1938
1939 /*
1940 * Prevent further allocations from RX/TX/CMD
1941 * data lists and ioctls
1942 */
1943 UPGT_LOCK(sc);
1944 sc->sc_flags |= UPGT_FLAG_DETACHED;
1945
1946 STAILQ_INIT(&sc->sc_tx_active);
1947 STAILQ_INIT(&sc->sc_tx_inactive);
1948 STAILQ_INIT(&sc->sc_tx_pending);
1949
1950 STAILQ_INIT(&sc->sc_rx_active);
1951 STAILQ_INIT(&sc->sc_rx_inactive);
1952
1953 upgt_stop(sc);
1954 UPGT_UNLOCK(sc);
1955
1956 callout_drain(&sc->sc_led_ch);
1957 callout_drain(&sc->sc_watchdog_ch);
1958
1959 /* drain USB transfers */
1960 for (x = 0; x != UPGT_N_XFERS; x++)
1961 usbd_transfer_drain(sc->sc_xfer[x]);
1962
1963 /* free data buffers */
1964 UPGT_LOCK(sc);
1965 upgt_free_rx(sc);
1966 upgt_free_tx(sc);
1967 UPGT_UNLOCK(sc);
1968
1969 /* free USB transfers and some data buffers */
1970 usbd_transfer_unsetup(sc->sc_xfer, UPGT_N_XFERS);
1971
1972 ieee80211_ifdetach(ic);
1973 mbufq_drain(&sc->sc_snd);
1974 mtx_destroy(&sc->sc_mtx);
1975
1976 return (0);
1977}
1978
1979static void
1980upgt_free_rx(struct upgt_softc *sc)
1981{
1982 int i;
1983
1984 for (i = 0; i < UPGT_RX_MAXCOUNT; i++) {
1985 struct upgt_data *data = &sc->sc_rx_data[i];
1986
1987 data->buf = NULL;
1988 data->ni = NULL;
1989 }
1990}
1991
1992static void
1993upgt_free_tx(struct upgt_softc *sc)
1994{
1995 int i;
1996
1997 for (i = 0; i < UPGT_TX_MAXCOUNT; i++) {
1998 struct upgt_data *data = &sc->sc_tx_data[i];
1999
2000 if (data->ni != NULL)
2001 ieee80211_free_node(data->ni);
2002
2003 data->buf = NULL;
2004 data->ni = NULL;
2005 }
2006}
2007
2008static void
2009upgt_abort_xfers_locked(struct upgt_softc *sc)
2010{
2011 int i;
2012
2013 UPGT_ASSERT_LOCKED(sc);
2014 /* abort any pending transfers */
2015 for (i = 0; i < UPGT_N_XFERS; i++)
2016 usbd_transfer_stop(sc->sc_xfer[i]);
2017}
2018
2019static void
2020upgt_abort_xfers(struct upgt_softc *sc)
2021{
2022
2023 UPGT_LOCK(sc);
2024 upgt_abort_xfers_locked(sc);
2025 UPGT_UNLOCK(sc);
2026}
2027
2028#define UPGT_SYSCTL_STAT_ADD32(c, h, n, p, d) \
2029 SYSCTL_ADD_UINT(c, h, OID_AUTO, n, CTLFLAG_RD, p, 0, d)
2030
2031static void
2032upgt_sysctl_node(struct upgt_softc *sc)
2033{
2034 struct sysctl_ctx_list *ctx;
2035 struct sysctl_oid_list *child;
2036 struct sysctl_oid *tree;
2037 struct upgt_stat *stats;
2038
2039 stats = &sc->sc_stat;
2040 ctx = device_get_sysctl_ctx(sc->sc_dev);
2041 child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->sc_dev));
2042
2043 tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "stats", CTLFLAG_RD,
2044 NULL, "UPGT statistics");
2045 child = SYSCTL_CHILDREN(tree);
2046 UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_active",
2047 &stats->st_tx_active, "Active numbers in TX queue");
2048 UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_inactive",
2049 &stats->st_tx_inactive, "Inactive numbers in TX queue");
2050 UPGT_SYSCTL_STAT_ADD32(ctx, child, "tx_pending",
2051 &stats->st_tx_pending, "Pending numbers in TX queue");
2052}
2053
2054#undef UPGT_SYSCTL_STAT_ADD32
2055
2056static struct upgt_data *
2057_upgt_getbuf(struct upgt_softc *sc)
2058{
2059 struct upgt_data *bf;
2060
2061 bf = STAILQ_FIRST(&sc->sc_tx_inactive);
2062 if (bf != NULL) {
2063 STAILQ_REMOVE_HEAD(&sc->sc_tx_inactive, next);
2064 UPGT_STAT_DEC(sc, st_tx_inactive);
2065 } else
2066 bf = NULL;
2067 if (bf == NULL)
2068 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: %s\n", __func__,
2069 "out of xmit buffers");
2070 return (bf);
2071}
2072
2073static struct upgt_data *
2074upgt_getbuf(struct upgt_softc *sc)
2075{
2076 struct upgt_data *bf;
2077
2078 UPGT_ASSERT_LOCKED(sc);
2079
2080 bf = _upgt_getbuf(sc);
2081 if (bf == NULL)
2082 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: stop queue\n", __func__);
2083
2084 return (bf);
2085}
2086
2087static struct upgt_data *
2088upgt_gettxbuf(struct upgt_softc *sc)
2089{
2090 struct upgt_data *bf;
2091
2092 UPGT_ASSERT_LOCKED(sc);
2093
2094 bf = upgt_getbuf(sc);
2095 if (bf == NULL)
2096 return (NULL);
2097
2098 bf->addr = upgt_mem_alloc(sc);
2099 if (bf->addr == 0) {
2100 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: no free prism memory!\n",
2101 __func__);
2102 STAILQ_INSERT_HEAD(&sc->sc_tx_inactive, bf, next);
2103 UPGT_STAT_INC(sc, st_tx_inactive);
2104 return (NULL);
2105 }
2106 return (bf);
2107}
2108
2109static int
2110upgt_tx_start(struct upgt_softc *sc, struct mbuf *m, struct ieee80211_node *ni,
2111 struct upgt_data *data)
2112{
2113 struct ieee80211vap *vap = ni->ni_vap;
2114 int error = 0, len;
2115 struct ieee80211_frame *wh;
2116 struct ieee80211_key *k;
2117 struct upgt_lmac_mem *mem;
2118 struct upgt_lmac_tx_desc *txdesc;
2119
2120 UPGT_ASSERT_LOCKED(sc);
2121
2122 upgt_set_led(sc, UPGT_LED_BLINK);
2123
2124 /*
2125 * Software crypto.
2126 */
2127 wh = mtod(m, struct ieee80211_frame *);
2128 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
2129 k = ieee80211_crypto_encap(ni, m);
2130 if (k == NULL) {
2131 device_printf(sc->sc_dev,
2132 "ieee80211_crypto_encap returns NULL.\n");
2133 error = EIO;
2134 goto done;
2135 }
2136
2137 /* in case packet header moved, reset pointer */
2138 wh = mtod(m, struct ieee80211_frame *);
2139 }
2140
2141 /* Transmit the URB containing the TX data. */
2142 memset(data->buf, 0, MCLBYTES);
2143 mem = (struct upgt_lmac_mem *)data->buf;
2144 mem->addr = htole32(data->addr);
2145 txdesc = (struct upgt_lmac_tx_desc *)(mem + 1);
2146
2147 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) ==
2148 IEEE80211_FC0_TYPE_MGT) {
2149 /* mgmt frames */
2150 txdesc->header1.flags = UPGT_H1_FLAGS_TX_MGMT;
2151 /* always send mgmt frames at lowest rate (DS1) */
2152 memset(txdesc->rates, 0x10, sizeof(txdesc->rates));
2153 } else {
2154 /* data frames */
2155 txdesc->header1.flags = UPGT_H1_FLAGS_TX_DATA;
2156 memcpy(txdesc->rates, sc->sc_cur_rateset, sizeof(txdesc->rates));
2157 }
2158 txdesc->header1.type = UPGT_H1_TYPE_TX_DATA;
2159 txdesc->header1.len = htole16(m->m_pkthdr.len);
2160 txdesc->header2.reqid = htole32(data->addr);
2161 txdesc->header2.type = htole16(UPGT_H2_TYPE_TX_ACK_YES);
2162 txdesc->header2.flags = htole16(UPGT_H2_FLAGS_TX_ACK_YES);
2163 txdesc->type = htole32(UPGT_TX_DESC_TYPE_DATA);
2164 txdesc->pad3[0] = UPGT_TX_DESC_PAD3_SIZE;
2165
2166 if (ieee80211_radiotap_active_vap(vap)) {
2167 struct upgt_tx_radiotap_header *tap = &sc->sc_txtap;
2168
2169 tap->wt_flags = 0;
2170 tap->wt_rate = 0; /* XXX where to get from? */
2171
2172 ieee80211_radiotap_tx(vap, m);
2173 }
2174
2175 /* copy frame below our TX descriptor header */
2176 m_copydata(m, 0, m->m_pkthdr.len,
2177 data->buf + (sizeof(*mem) + sizeof(*txdesc)));
2178 /* calculate frame size */
2179 len = sizeof(*mem) + sizeof(*txdesc) + m->m_pkthdr.len;
2180 /* we need to align the frame to a 4 byte boundary */
2181 len = (len + 3) & ~3;
2182 /* calculate frame checksum */
2183 mem->chksum = upgt_chksum_le((uint32_t *)txdesc, len - sizeof(*mem));
2184 data->ni = ni;
2185 data->m = m;
2186 data->buflen = len;
2187
2188 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: TX start data sending (%d bytes)\n",
2189 __func__, len);
2190 KASSERT(len <= MCLBYTES, ("mbuf is small for saving data"));
2191
2192 upgt_bulk_tx(sc, data);
2193done:
2194 /*
2195 * If we don't regulary read the device statistics, the RX queue
2196 * will stall. It's strange, but it works, so we keep reading
2197 * the statistics here. *shrug*
2198 */
2199 if (!(vap->iv_ifp->if_get_counter(vap->iv_ifp, IFCOUNTER_OPACKETS) %
2200 UPGT_TX_STAT_INTERVAL))
2201 upgt_get_stats(sc);
2202
2203 return (error);
2204}
2205
2206static void
2207upgt_bulk_rx_callback(struct usb_xfer *xfer, usb_error_t error)
2208{
2209 struct upgt_softc *sc = usbd_xfer_softc(xfer);
2210 struct ieee80211com *ic = &sc->sc_ic;
2211 struct ieee80211_frame *wh;
2212 struct ieee80211_node *ni;
2213 struct mbuf *m = NULL;
2214 struct upgt_data *data;
2215 int8_t nf;
2216 int rssi = -1;
2217
2218 UPGT_ASSERT_LOCKED(sc);
2219
2220 switch (USB_GET_STATE(xfer)) {
2221 case USB_ST_TRANSFERRED:
2222 data = STAILQ_FIRST(&sc->sc_rx_active);
2223 if (data == NULL)
2224 goto setup;
2225 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2226 m = upgt_rxeof(xfer, data, &rssi);
2227 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2228 /* FALLTHROUGH */
2229 case USB_ST_SETUP:
2230setup:
2231 data = STAILQ_FIRST(&sc->sc_rx_inactive);
2232 if (data == NULL)
2233 return;
2234 STAILQ_REMOVE_HEAD(&sc->sc_rx_inactive, next);
2235 STAILQ_INSERT_TAIL(&sc->sc_rx_active, data, next);
2236 usbd_xfer_set_frame_data(xfer, 0, data->buf, MCLBYTES);
2237 usbd_transfer_submit(xfer);
2238
2239 /*
2240 * To avoid LOR we should unlock our private mutex here to call
2241 * ieee80211_input() because here is at the end of a USB
2242 * callback and safe to unlock.
2243 */
2244 UPGT_UNLOCK(sc);
2245 if (m != NULL) {
2246 wh = mtod(m, struct ieee80211_frame *);
2247 ni = ieee80211_find_rxnode(ic,
2248 (struct ieee80211_frame_min *)wh);
2249 nf = -95; /* XXX */
2250 if (ni != NULL) {
2251 (void) ieee80211_input(ni, m, rssi, nf);
2252 /* node is no longer needed */
2253 ieee80211_free_node(ni);
2254 } else
2255 (void) ieee80211_input_all(ic, m, rssi, nf);
2256 m = NULL;
2257 }
2258 UPGT_LOCK(sc);
2259 upgt_start(sc);
2260 break;
2261 default:
2262 /* needs it to the inactive queue due to a error. */
2263 data = STAILQ_FIRST(&sc->sc_rx_active);
2264 if (data != NULL) {
2265 STAILQ_REMOVE_HEAD(&sc->sc_rx_active, next);
2266 STAILQ_INSERT_TAIL(&sc->sc_rx_inactive, data, next);
2267 }
2268 if (error != USB_ERR_CANCELLED) {
2269 usbd_xfer_set_stall(xfer);
2270 counter_u64_add(ic->ic_ierrors, 1);
2271 goto setup;
2272 }
2273 break;
2274 }
2275}
2276
2277static void
2278upgt_bulk_tx_callback(struct usb_xfer *xfer, usb_error_t error)
2279{
2280 struct upgt_softc *sc = usbd_xfer_softc(xfer);
2281 struct upgt_data *data;
2282
2283 UPGT_ASSERT_LOCKED(sc);
2284 switch (USB_GET_STATE(xfer)) {
2285 case USB_ST_TRANSFERRED:
2286 data = STAILQ_FIRST(&sc->sc_tx_active);
2287 if (data == NULL)
2288 goto setup;
2289 STAILQ_REMOVE_HEAD(&sc->sc_tx_active, next);
2290 UPGT_STAT_DEC(sc, st_tx_active);
2291 upgt_txeof(xfer, data);
2292 STAILQ_INSERT_TAIL(&sc->sc_tx_inactive, data, next);
2293 UPGT_STAT_INC(sc, st_tx_inactive);
2294 /* FALLTHROUGH */
2295 case USB_ST_SETUP:
2296setup:
2297 data = STAILQ_FIRST(&sc->sc_tx_pending);
2298 if (data == NULL) {
2299 DPRINTF(sc, UPGT_DEBUG_XMIT, "%s: empty pending queue\n",
2300 __func__);
2301 return;
2302 }
2303 STAILQ_REMOVE_HEAD(&sc->sc_tx_pending, next);
2304 UPGT_STAT_DEC(sc, st_tx_pending);
2305 STAILQ_INSERT_TAIL(&sc->sc_tx_active, data, next);
2306 UPGT_STAT_INC(sc, st_tx_active);
2307
2308 usbd_xfer_set_frame_data(xfer, 0, data->buf, data->buflen);
2309 usbd_transfer_submit(xfer);
2310 upgt_start(sc);
2311 break;
2312 default:
2313 data = STAILQ_FIRST(&sc->sc_tx_active);
2314 if (data == NULL)
2315 goto setup;
2316 if (data->ni != NULL) {
2317 if_inc_counter(data->ni->ni_vap->iv_ifp,
2318 IFCOUNTER_OERRORS, 1);
2319 ieee80211_free_node(data->ni);
2320 data->ni = NULL;
2321 }
2322 if (error != USB_ERR_CANCELLED) {
2323 usbd_xfer_set_stall(xfer);
2324 goto setup;
2325 }
2326 break;
2327 }
2328}
2329
2330static device_method_t upgt_methods[] = {
2331 /* Device interface */
2332 DEVMETHOD(device_probe, upgt_match),
2333 DEVMETHOD(device_attach, upgt_attach),
2334 DEVMETHOD(device_detach, upgt_detach),
2335 DEVMETHOD_END
2336};
2337
2338static driver_t upgt_driver = {
2339 .name = "upgt",
2340 .methods = upgt_methods,
2341 .size = sizeof(struct upgt_softc)
2342};
2343
2344static devclass_t upgt_devclass;
2345
2346DRIVER_MODULE(if_upgt, uhub, upgt_driver, upgt_devclass, NULL, 0);
2347MODULE_VERSION(if_upgt, 1);
2348MODULE_DEPEND(if_upgt, usb, 1, 1, 1);
2349MODULE_DEPEND(if_upgt, wlan, 1, 1, 1);
2350MODULE_DEPEND(if_upgt, upgtfw_fw, 1, 1, 1);
2351USB_PNP_HOST_INFO(upgt_devs);
|