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if_smc.c (179592) if_smc.c (179718)
1/*-
1/*-
2 * Copyright (c) 2006 Benno Rice. All rights reserved.
2 * Copyright (c) 2008 Benno Rice. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the

--- 7 unchanged lines hidden (view full) ---

18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#include <sys/cdefs.h>
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the

--- 7 unchanged lines hidden (view full) ---

18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#include <sys/cdefs.h>
26__FBSDID("$FreeBSD: head/sys/dev/smc/if_smc.c 179592 2008-06-06 05:00:49Z benno $");
26__FBSDID("$FreeBSD: head/sys/dev/smc/if_smc.c 179718 2008-06-11 06:53:55Z benno $");
27
28/*
29 * Driver for SMSC LAN91C111, may work for older variants.
30 */
31
32#ifdef HAVE_KERNEL_OPTION_HEADERS
33#include "opt_device_polling.h"
34#endif

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112#ifdef DEVICE_POLLING
113static poll_handler_t smc_poll;
114#endif
115
116static __inline void
117smc_select_bank(struct smc_softc *sc, uint16_t bank)
118{
119
27
28/*
29 * Driver for SMSC LAN91C111, may work for older variants.
30 */
31
32#ifdef HAVE_KERNEL_OPTION_HEADERS
33#include "opt_device_polling.h"
34#endif

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112#ifdef DEVICE_POLLING
113static poll_handler_t smc_poll;
114#endif
115
116static __inline void
117smc_select_bank(struct smc_softc *sc, uint16_t bank)
118{
119
120 bus_space_write_2(sc->smc_bst, sc->smc_bsh, BSR, bank & BSR_BANK_MASK);
120 bus_write_2(sc->smc_reg, BSR, bank & BSR_BANK_MASK);
121}
122
123/* Never call this when not in bank 2. */
124static __inline void
125smc_mmu_wait(struct smc_softc *sc)
126{
127
121}
122
123/* Never call this when not in bank 2. */
124static __inline void
125smc_mmu_wait(struct smc_softc *sc)
126{
127
128 KASSERT((bus_space_read_2(sc->smc_bst, sc->smc_bsh, BSR) &
128 KASSERT((bus_read_2(sc->smc_reg, BSR) &
129 BSR_BANK_MASK) == 2, ("%s: smc_mmu_wait called when not in bank 2",
130 device_get_nameunit(sc->smc_dev)));
129 BSR_BANK_MASK) == 2, ("%s: smc_mmu_wait called when not in bank 2",
130 device_get_nameunit(sc->smc_dev)));
131 while (bus_space_read_2(sc->smc_bst, sc->smc_bsh, MMUCR) & MMUCR_BUSY)
131 while (bus_read_2(sc->smc_reg, MMUCR) & MMUCR_BUSY)
132 ;
133}
134
135static __inline uint8_t
136smc_read_1(struct smc_softc *sc, bus_addr_t offset)
137{
138
132 ;
133}
134
135static __inline uint8_t
136smc_read_1(struct smc_softc *sc, bus_addr_t offset)
137{
138
139 return (bus_space_read_1(sc->smc_bst, sc->smc_bsh, offset));
139 return (bus_read_1(sc->smc_reg, offset));
140}
141
142static __inline void
143smc_write_1(struct smc_softc *sc, bus_addr_t offset, uint8_t val)
144{
145
140}
141
142static __inline void
143smc_write_1(struct smc_softc *sc, bus_addr_t offset, uint8_t val)
144{
145
146 bus_space_write_1(sc->smc_bst, sc->smc_bsh, offset, val);
146 bus_write_1(sc->smc_reg, offset, val);
147}
148
149static __inline uint16_t
150smc_read_2(struct smc_softc *sc, bus_addr_t offset)
151{
152
147}
148
149static __inline uint16_t
150smc_read_2(struct smc_softc *sc, bus_addr_t offset)
151{
152
153 return (bus_space_read_2(sc->smc_bst, sc->smc_bsh, offset));
153 return (bus_read_2(sc->smc_reg, offset));
154}
155
156static __inline void
157smc_write_2(struct smc_softc *sc, bus_addr_t offset, uint16_t val)
158{
159
154}
155
156static __inline void
157smc_write_2(struct smc_softc *sc, bus_addr_t offset, uint16_t val)
158{
159
160 bus_space_write_2(sc->smc_bst, sc->smc_bsh, offset, val);
160 bus_write_2(sc->smc_reg, offset, val);
161}
162
163static __inline void
164smc_read_multi_2(struct smc_softc *sc, bus_addr_t offset, uint16_t *datap,
165 bus_size_t count)
166{
167
161}
162
163static __inline void
164smc_read_multi_2(struct smc_softc *sc, bus_addr_t offset, uint16_t *datap,
165 bus_size_t count)
166{
167
168 bus_space_read_multi_2(sc->smc_bst, sc->smc_bsh, offset, datap, count);
168 bus_read_multi_2(sc->smc_reg, offset, datap, count);
169}
170
171static __inline void
172smc_write_multi_2(struct smc_softc *sc, bus_addr_t offset, uint16_t *datap,
173 bus_size_t count)
174{
175
169}
170
171static __inline void
172smc_write_multi_2(struct smc_softc *sc, bus_addr_t offset, uint16_t *datap,
173 bus_size_t count)
174{
175
176 bus_space_write_multi_2(sc->smc_bst, sc->smc_bsh, offset, datap, count);
176 bus_write_multi_2(sc->smc_reg, offset, datap, count);
177}
178
179int
180smc_probe(device_t dev)
181{
182 int rid, type, error;
183 uint16_t val;
184 struct smc_softc *sc;
185 struct resource *reg;
177}
178
179int
180smc_probe(device_t dev)
181{
182 int rid, type, error;
183 uint16_t val;
184 struct smc_softc *sc;
185 struct resource *reg;
186 bus_space_tag_t bst;
187 bus_space_handle_t bsh;
188
189 sc = device_get_softc(dev);
190 rid = 0;
191 type = SYS_RES_IOPORT;
192 error = 0;
193
194 if (sc->smc_usemem)
195 type = SYS_RES_MEMORY;
196
197 reg = bus_alloc_resource(dev, type, &rid, 0, ~0, 16, RF_ACTIVE);
198 if (reg == NULL) {
199 if (bootverbose)
200 device_printf(dev,
201 "could not allocate I/O resource for probe\n");
202 return (ENXIO);
203 }
204
186
187 sc = device_get_softc(dev);
188 rid = 0;
189 type = SYS_RES_IOPORT;
190 error = 0;
191
192 if (sc->smc_usemem)
193 type = SYS_RES_MEMORY;
194
195 reg = bus_alloc_resource(dev, type, &rid, 0, ~0, 16, RF_ACTIVE);
196 if (reg == NULL) {
197 if (bootverbose)
198 device_printf(dev,
199 "could not allocate I/O resource for probe\n");
200 return (ENXIO);
201 }
202
205 bst = rman_get_bustag(reg);
206 bsh = rman_get_bushandle(reg);
207
208 /* Check for the identification value in the BSR. */
203 /* Check for the identification value in the BSR. */
209 val = bus_space_read_2(bst, bsh, BSR);
204 val = bus_read_2(reg, BSR);
210 if ((val & BSR_IDENTIFY_MASK) != BSR_IDENTIFY) {
211 if (bootverbose)
212 device_printf(dev, "identification value not in BSR\n");
213 error = ENXIO;
214 goto done;
215 }
216
217 /*
218 * Try switching banks and make sure we still get the identification
219 * value.
220 */
205 if ((val & BSR_IDENTIFY_MASK) != BSR_IDENTIFY) {
206 if (bootverbose)
207 device_printf(dev, "identification value not in BSR\n");
208 error = ENXIO;
209 goto done;
210 }
211
212 /*
213 * Try switching banks and make sure we still get the identification
214 * value.
215 */
221 bus_space_write_2(bst, bsh, BSR, 0);
222 val = bus_space_read_2(bst, bsh, BSR);
216 bus_write_2(reg, BSR, 0);
217 val = bus_read_2(reg, BSR);
223 if ((val & BSR_IDENTIFY_MASK) != BSR_IDENTIFY) {
224 if (bootverbose)
225 device_printf(dev,
226 "identification value not in BSR after write\n");
227 error = ENXIO;
228 goto done;
229 }
230
231#if 0
232 /* Check the BAR. */
218 if ((val & BSR_IDENTIFY_MASK) != BSR_IDENTIFY) {
219 if (bootverbose)
220 device_printf(dev,
221 "identification value not in BSR after write\n");
222 error = ENXIO;
223 goto done;
224 }
225
226#if 0
227 /* Check the BAR. */
233 bus_space_write_2(bst, bsh, BSR, 1);
234 val = bus_space_read_2(bst, bsh, BAR);
228 bus_write_2(reg, BSR, 1);
229 val = bus_read_2(reg, BAR);
235 val = BAR_ADDRESS(val);
236 if (rman_get_start(reg) != val) {
237 if (bootverbose)
238 device_printf(dev, "BAR address %x does not match "
239 "I/O resource address %lx\n", val,
240 rman_get_start(reg));
241 error = ENXIO;
242 goto done;
243 }
244#endif
245
246 /* Compare REV against known chip revisions. */
230 val = BAR_ADDRESS(val);
231 if (rman_get_start(reg) != val) {
232 if (bootverbose)
233 device_printf(dev, "BAR address %x does not match "
234 "I/O resource address %lx\n", val,
235 rman_get_start(reg));
236 error = ENXIO;
237 goto done;
238 }
239#endif
240
241 /* Compare REV against known chip revisions. */
247 bus_space_write_2(bst, bsh, BSR, 3);
248 val = bus_space_read_2(bst, bsh, REV);
242 bus_write_2(reg, BSR, 3);
243 val = bus_read_2(reg, REV);
249 val = (val & REV_CHIP_MASK) >> REV_CHIP_SHIFT;
250 if (smc_chip_ids[val] == NULL) {
251 if (bootverbose)
252 device_printf(dev, "Unknown chip revision: %d\n", val);
253 error = ENXIO;
254 goto done;
255 }
256

--- 43 unchanged lines hidden (view full) ---

300
301 sc->smc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->smc_irq_rid, 0,
302 ~0, 1, RF_ACTIVE | RF_SHAREABLE);
303 if (sc->smc_irq == NULL) {
304 error = ENXIO;
305 goto done;
306 }
307
244 val = (val & REV_CHIP_MASK) >> REV_CHIP_SHIFT;
245 if (smc_chip_ids[val] == NULL) {
246 if (bootverbose)
247 device_printf(dev, "Unknown chip revision: %d\n", val);
248 error = ENXIO;
249 goto done;
250 }
251

--- 43 unchanged lines hidden (view full) ---

295
296 sc->smc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->smc_irq_rid, 0,
297 ~0, 1, RF_ACTIVE | RF_SHAREABLE);
298 if (sc->smc_irq == NULL) {
299 error = ENXIO;
300 goto done;
301 }
302
308 sc->smc_bst = rman_get_bustag(sc->smc_reg);
309 sc->smc_bsh = rman_get_bushandle(sc->smc_reg);
310
311 SMC_LOCK(sc);
312 smc_reset(sc);
313 SMC_UNLOCK(sc);
314
315 smc_select_bank(sc, 3);
316 val = smc_read_2(sc, REV);
317 sc->smc_chip = (val & REV_CHIP_MASK) >> REV_CHIP_SHIFT;
318 sc->smc_rev = (val * REV_REV_MASK) >> REV_REV_SHIFT;

--- 994 unchanged lines hidden --- 		303 SMC_LOCK(sc);
304 smc_reset(sc);
305 SMC_UNLOCK(sc);
306
307 smc_select_bank(sc, 3);
308 val = smc_read_2(sc, REV);
309 sc->smc_chip = (val & REV_CHIP_MASK) >> REV_CHIP_SHIFT;
310 sc->smc_rev = (val * REV_REV_MASK) >> REV_REV_SHIFT;

--- 994 unchanged lines hidden ---