1/*- 2 * Copyright (c) 1996-1999 3 * Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp) 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote 15 * products derived from this software without specific prior written 16 * permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 *
| 1/*- 2 * Copyright (c) 1996-1999 3 * Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp) 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote 15 * products derived from this software without specific prior written 16 * permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 *
|
30 * $FreeBSD: head/sys/dev/atkbdc/atkbdc.c 56836 2000-01-29 15:08:56Z peter $
| 30 * $FreeBSD: head/sys/dev/atkbdc/atkbdc.c 58271 2000-03-19 03:25:13Z yokota $
|
31 * from kbdio.c,v 1.13 1998/09/25 11:55:46 yokota Exp 32 */ 33 34#include "atkbdc.h" 35#include "opt_kbd.h" 36 37#include <sys/param.h> 38#include <sys/systm.h>
| 31 * from kbdio.c,v 1.13 1998/09/25 11:55:46 yokota Exp 32 */ 33 34#include "atkbdc.h" 35#include "opt_kbd.h" 36 37#include <sys/param.h> 38#include <sys/systm.h>
|
39#include <sys/kernel.h>
| 39#include <sys/bus.h>
|
40#include <sys/malloc.h> 41#include <sys/syslog.h>
| 40#include <sys/malloc.h> 41#include <sys/syslog.h>
|
| 42#include <machine/bus_pio.h> 43#include <machine/bus.h> 44#include <machine/resource.h> 45#include <sys/rman.h>
|
42 43#include <machine/clock.h> 44 45#include <dev/kbd/atkbdcreg.h> 46 47#include <isa/isareg.h> 48 49/* constants */ 50 51#define MAXKBDC MAX(NATKBDC, 1) /* XXX */ 52 53/* macros */ 54 55#ifndef MAX 56#define MAX(x, y) ((x) > (y) ? (x) : (y)) 57#endif 58 59#define kbdcp(p) ((atkbdc_softc_t *)(p)) 60#define nextq(i) (((i) + 1) % KBDQ_BUFSIZE) 61#define availq(q) ((q)->head != (q)->tail) 62#if KBDIO_DEBUG >= 2 63#define emptyq(q) ((q)->tail = (q)->head = (q)->qcount = 0) 64#else 65#define emptyq(q) ((q)->tail = (q)->head = 0) 66#endif 67
| 46 47#include <machine/clock.h> 48 49#include <dev/kbd/atkbdcreg.h> 50 51#include <isa/isareg.h> 52 53/* constants */ 54 55#define MAXKBDC MAX(NATKBDC, 1) /* XXX */ 56 57/* macros */ 58 59#ifndef MAX 60#define MAX(x, y) ((x) > (y) ? (x) : (y)) 61#endif 62 63#define kbdcp(p) ((atkbdc_softc_t *)(p)) 64#define nextq(i) (((i) + 1) % KBDQ_BUFSIZE) 65#define availq(q) ((q)->head != (q)->tail) 66#if KBDIO_DEBUG >= 2 67#define emptyq(q) ((q)->tail = (q)->head = (q)->qcount = 0) 68#else 69#define emptyq(q) ((q)->tail = (q)->head = 0) 70#endif 71
|
| 72#define read_data(k) (bus_space_read_1((k)->iot, (k)->ioh0, 0)) 73#define read_status(k) (bus_space_read_1((k)->iot, (k)->ioh1, 0)) 74#define write_data(k, d) \ 75 (bus_space_write_1((k)->iot, (k)->ioh0, 0, (d))) 76#define write_command(k, d) \ 77 (bus_space_write_1((k)->iot, (k)->ioh1, 0, (d))) 78
|
68/* local variables */ 69 70/* 71 * We always need at least one copy of the kbdc_softc struct for the 72 * low-level console. As the low-level console accesses the keyboard 73 * controller before kbdc, and all other devices, is probed, we 74 * statically allocate one entry. XXX 75 */ 76static atkbdc_softc_t default_kbdc; 77static atkbdc_softc_t *atkbdc_softc[MAXKBDC] = { &default_kbdc }; 78 79static int verbose = KBDIO_DEBUG; 80 81/* function prototypes */ 82
| 79/* local variables */ 80 81/* 82 * We always need at least one copy of the kbdc_softc struct for the 83 * low-level console. As the low-level console accesses the keyboard 84 * controller before kbdc, and all other devices, is probed, we 85 * statically allocate one entry. XXX 86 */ 87static atkbdc_softc_t default_kbdc; 88static atkbdc_softc_t *atkbdc_softc[MAXKBDC] = { &default_kbdc }; 89 90static int verbose = KBDIO_DEBUG; 91 92/* function prototypes */ 93
|
83static int atkbdc_setup(atkbdc_softc_t *sc, int port);
| 94static int atkbdc_setup(atkbdc_softc_t *sc, bus_space_tag_t tag, 95 bus_space_handle_t h0, bus_space_handle_t h1);
|
84static int addq(kqueue *q, int c); 85static int removeq(kqueue *q); 86static int wait_while_controller_busy(atkbdc_softc_t *kbdc); 87static int wait_for_data(atkbdc_softc_t *kbdc); 88static int wait_for_kbd_data(atkbdc_softc_t *kbdc); 89static int wait_for_kbd_ack(atkbdc_softc_t *kbdc); 90static int wait_for_aux_data(atkbdc_softc_t *kbdc); 91static int wait_for_aux_ack(atkbdc_softc_t *kbdc); 92 93atkbdc_softc_t 94*atkbdc_get_softc(int unit) 95{ 96 atkbdc_softc_t *sc; 97 98 if (unit >= sizeof(atkbdc_softc)/sizeof(atkbdc_softc[0])) 99 return NULL; 100 sc = atkbdc_softc[unit]; 101 if (sc == NULL) { 102 sc = atkbdc_softc[unit] 103 = malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT); 104 if (sc == NULL) 105 return NULL; 106 bzero(sc, sizeof(*sc));
| 96static int addq(kqueue *q, int c); 97static int removeq(kqueue *q); 98static int wait_while_controller_busy(atkbdc_softc_t *kbdc); 99static int wait_for_data(atkbdc_softc_t *kbdc); 100static int wait_for_kbd_data(atkbdc_softc_t *kbdc); 101static int wait_for_kbd_ack(atkbdc_softc_t *kbdc); 102static int wait_for_aux_data(atkbdc_softc_t *kbdc); 103static int wait_for_aux_ack(atkbdc_softc_t *kbdc); 104 105atkbdc_softc_t 106*atkbdc_get_softc(int unit) 107{ 108 atkbdc_softc_t *sc; 109 110 if (unit >= sizeof(atkbdc_softc)/sizeof(atkbdc_softc[0])) 111 return NULL; 112 sc = atkbdc_softc[unit]; 113 if (sc == NULL) { 114 sc = atkbdc_softc[unit] 115 = malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT); 116 if (sc == NULL) 117 return NULL; 118 bzero(sc, sizeof(*sc));
|
107 sc->port = -1; /* XXX */
| |
108 } 109 return sc; 110} 111 112int
| 119 } 120 return sc; 121} 122 123int
|
113atkbdc_probe_unit(int unit, int port)
| 124atkbdc_probe_unit(int unit, struct resource *port0, struct resource *port1)
|
114{
| 125{
|
115 if (port <= 0)
| 126 if (rman_get_start(port0) <= 0)
|
116 return ENXIO;
| 127 return ENXIO;
|
| 128 if (rman_get_start(port1) <= 0) 129 return ENXIO;
|
117 return 0; 118} 119 120int
| 130 return 0; 131} 132 133int
|
121atkbdc_attach_unit(int unit, atkbdc_softc_t *sc, int port)
| 134atkbdc_attach_unit(int unit, atkbdc_softc_t *sc, struct resource *port0, 135 struct resource *port1)
|
122{
| 136{
|
123 return atkbdc_setup(sc, port);
| 137 return atkbdc_setup(sc, rman_get_bustag(port0), 138 rman_get_bushandle(port0), 139 rman_get_bushandle(port1));
|
124} 125 126/* the backdoor to the keyboard controller! XXX */ 127int 128atkbdc_configure(void) 129{
| 140} 141 142/* the backdoor to the keyboard controller! XXX */ 143int 144atkbdc_configure(void) 145{
|
130 return atkbdc_setup(atkbdc_softc[0], -1);
| 146 bus_space_tag_t tag; 147 bus_space_handle_t h0; 148 bus_space_handle_t h1; 149 int port0; 150 int port1; 151 152 port0 = IO_KBD; 153 resource_int_value("atkbdc", 0, "port", &port0); 154 port1 = IO_KBD + KBD_STATUS_PORT; 155#if 0 156 resource_int_value("atkbdc", 0, "port", &port0); 157#endif 158 159 /* XXX: tag should be passed from the caller */ 160#if defined(__i386__) 161 tag = I386_BUS_SPACE_IO; 162#elif defined(__alpha__) 163 tag = ALPHA_BUS_SPACE_IO; 164#endif 165 166#if notyet 167 bus_space_map(tag, port0, IO_KBDSIZE, 0, &h0); 168 bus_space_map(tag, port1, IO_KBDSIZE, 0, &h1); 169#else 170 h0 = (bus_space_handle_t)port0; 171 h1 = (bus_space_handle_t)port1; 172#endif 173 return atkbdc_setup(atkbdc_softc[0], tag, h0, h1);
|
131} 132 133static int
| 174} 175 176static int
|
134atkbdc_setup(atkbdc_softc_t *sc, int port)
| 177atkbdc_setup(atkbdc_softc_t *sc, bus_space_tag_t tag, bus_space_handle_t h0, 178 bus_space_handle_t h1)
|
135{
| 179{
|
136 if (port <= 0) 137 port = IO_KBD; 138 139 if (sc->port <= 0) {
| 180 if (sc->ioh0 == 0) { /* XXX */
|
140 sc->command_byte = -1; 141 sc->command_mask = 0; 142 sc->lock = FALSE; 143 sc->kbd.head = sc->kbd.tail = 0; 144 sc->aux.head = sc->aux.tail = 0; 145#if KBDIO_DEBUG >= 2 146 sc->kbd.call_count = 0; 147 sc->kbd.qcount = sc->kbd.max_qcount = 0; 148 sc->aux.call_count = 0; 149 sc->aux.qcount = sc->aux.max_qcount = 0; 150#endif 151 }
| 181 sc->command_byte = -1; 182 sc->command_mask = 0; 183 sc->lock = FALSE; 184 sc->kbd.head = sc->kbd.tail = 0; 185 sc->aux.head = sc->aux.tail = 0; 186#if KBDIO_DEBUG >= 2 187 sc->kbd.call_count = 0; 188 sc->kbd.qcount = sc->kbd.max_qcount = 0; 189 sc->aux.call_count = 0; 190 sc->aux.qcount = sc->aux.max_qcount = 0; 191#endif 192 }
|
152 sc->port = port; /* may override the previous value */
| 193 sc->iot = tag; 194 sc->ioh0 = h0; 195 sc->ioh1 = h1;
|
153 return 0; 154} 155
| 196 return 0; 197} 198
|
156/* associate a port number with a KBDC */ 157
| 199/* open a keyboard controller */
|
158KBDC
| 200KBDC
|
159kbdc_open(int port)
| 201atkbdc_open(int unit)
|
160{
| 202{
|
161 int s; 162 int i; 163 164 if (port <= 0) 165 port = IO_KBD; 166 167 s = spltty(); 168 for (i = 0; i < sizeof(atkbdc_softc)/sizeof(atkbdc_softc[0]); ++i) { 169 if (atkbdc_softc[i] == NULL) 170 continue; 171 if (atkbdc_softc[i]->port == port) { 172 splx(s); 173 return (KBDC)atkbdc_softc[i]; 174 } 175 if (atkbdc_softc[i]->port <= 0) { 176 if (atkbdc_setup(atkbdc_softc[i], port)) 177 break; 178 splx(s); 179 return (KBDC)atkbdc_softc[i]; 180 } 181 } 182 splx(s);
| 203 if (unit <= 0) 204 unit = 0; 205 if (unit >= MAXKBDC) 206 return NULL; 207 if ((atkbdc_softc[unit]->port0 != NULL) 208 || (atkbdc_softc[unit]->ioh0 != 0)) /* XXX */ 209 return (KBDC)atkbdc_softc[unit];
|
183 return NULL; 184} 185 186/* 187 * I/O access arbitration in `kbdio' 188 * 189 * The `kbdio' module uses a simplistic convention to arbitrate 190 * I/O access to the controller/keyboard/mouse. The convention requires 191 * close cooperation of the calling device driver. 192 * 193 * The device driver which utilizes the `kbdio' module are assumed to 194 * have the following set of routines. 195 * a. An interrupt handler (the bottom half of the driver). 196 * b. Timeout routines which may briefly polls the keyboard controller. 197 * c. Routines outside interrupt context (the top half of the driver). 198 * They should follow the rules below: 199 * 1. The interrupt handler may assume that it always has full access 200 * to the controller/keyboard/mouse. 201 * 2. The other routines must issue `spltty()' if they wish to 202 * prevent the interrupt handler from accessing 203 * the controller/keyboard/mouse. 204 * 3. The timeout routines and the top half routines of the device driver 205 * arbitrate I/O access by observing the lock flag in `kbdio'. 206 * The flag is manipulated via `kbdc_lock()'; when one wants to 207 * perform I/O, call `kbdc_lock(kbdc, TRUE)' and proceed only if 208 * the call returns with TRUE. Otherwise the caller must back off. 209 * Call `kbdc_lock(kbdc, FALSE)' when necessary I/O operaion 210 * is finished. This mechanism does not prevent the interrupt 211 * handler from being invoked at any time and carrying out I/O. 212 * Therefore, `spltty()' must be strategically placed in the device 213 * driver code. Also note that the timeout routine may interrupt 214 * `kbdc_lock()' called by the top half of the driver, but this 215 * interruption is OK so long as the timeout routine observes the 216 * the rule 4 below. 217 * 4. The interrupt and timeout routines should not extend I/O operation 218 * across more than one interrupt or timeout; they must complete 219 * necessary I/O operation within one invokation of the routine. 220 * This measns that if the timeout routine acquires the lock flag, 221 * it must reset the flag to FALSE before it returns. 222 */ 223 224/* set/reset polling lock */ 225int 226kbdc_lock(KBDC p, int lock) 227{ 228 int prevlock; 229 230 prevlock = kbdcp(p)->lock; 231 kbdcp(p)->lock = lock; 232 233 return (prevlock != lock); 234} 235 236/* check if any data is waiting to be processed */ 237int 238kbdc_data_ready(KBDC p) 239{ 240 return (availq(&kbdcp(p)->kbd) || availq(&kbdcp(p)->aux)
| 210 return NULL; 211} 212 213/* 214 * I/O access arbitration in `kbdio' 215 * 216 * The `kbdio' module uses a simplistic convention to arbitrate 217 * I/O access to the controller/keyboard/mouse. The convention requires 218 * close cooperation of the calling device driver. 219 * 220 * The device driver which utilizes the `kbdio' module are assumed to 221 * have the following set of routines. 222 * a. An interrupt handler (the bottom half of the driver). 223 * b. Timeout routines which may briefly polls the keyboard controller. 224 * c. Routines outside interrupt context (the top half of the driver). 225 * They should follow the rules below: 226 * 1. The interrupt handler may assume that it always has full access 227 * to the controller/keyboard/mouse. 228 * 2. The other routines must issue `spltty()' if they wish to 229 * prevent the interrupt handler from accessing 230 * the controller/keyboard/mouse. 231 * 3. The timeout routines and the top half routines of the device driver 232 * arbitrate I/O access by observing the lock flag in `kbdio'. 233 * The flag is manipulated via `kbdc_lock()'; when one wants to 234 * perform I/O, call `kbdc_lock(kbdc, TRUE)' and proceed only if 235 * the call returns with TRUE. Otherwise the caller must back off. 236 * Call `kbdc_lock(kbdc, FALSE)' when necessary I/O operaion 237 * is finished. This mechanism does not prevent the interrupt 238 * handler from being invoked at any time and carrying out I/O. 239 * Therefore, `spltty()' must be strategically placed in the device 240 * driver code. Also note that the timeout routine may interrupt 241 * `kbdc_lock()' called by the top half of the driver, but this 242 * interruption is OK so long as the timeout routine observes the 243 * the rule 4 below. 244 * 4. The interrupt and timeout routines should not extend I/O operation 245 * across more than one interrupt or timeout; they must complete 246 * necessary I/O operation within one invokation of the routine. 247 * This measns that if the timeout routine acquires the lock flag, 248 * it must reset the flag to FALSE before it returns. 249 */ 250 251/* set/reset polling lock */ 252int 253kbdc_lock(KBDC p, int lock) 254{ 255 int prevlock; 256 257 prevlock = kbdcp(p)->lock; 258 kbdcp(p)->lock = lock; 259 260 return (prevlock != lock); 261} 262 263/* check if any data is waiting to be processed */ 264int 265kbdc_data_ready(KBDC p) 266{ 267 return (availq(&kbdcp(p)->kbd) || availq(&kbdcp(p)->aux)
|
241 || (inb(kbdcp(p)->port + KBD_STATUS_PORT) & KBDS_ANY_BUFFER_FULL));
| 268 || (read_status(kbdcp(p)) & KBDS_ANY_BUFFER_FULL));
|
242} 243 244/* queuing functions */ 245 246static int 247addq(kqueue *q, int c) 248{ 249 if (nextq(q->tail) != q->head) { 250 q->q[q->tail] = c; 251 q->tail = nextq(q->tail); 252#if KBDIO_DEBUG >= 2 253 ++q->call_count; 254 ++q->qcount; 255 if (q->qcount > q->max_qcount) 256 q->max_qcount = q->qcount; 257#endif 258 return TRUE; 259 } 260 return FALSE; 261} 262 263static int 264removeq(kqueue *q) 265{ 266 int c; 267 268 if (q->tail != q->head) { 269 c = q->q[q->head]; 270 q->head = nextq(q->head); 271#if KBDIO_DEBUG >= 2 272 --q->qcount; 273#endif 274 return c; 275 } 276 return -1; 277} 278 279/* 280 * device I/O routines 281 */ 282static int 283wait_while_controller_busy(struct atkbdc_softc *kbdc) 284{ 285 /* CPU will stay inside the loop for 100msec at most */ 286 int retry = 5000;
| 269} 270 271/* queuing functions */ 272 273static int 274addq(kqueue *q, int c) 275{ 276 if (nextq(q->tail) != q->head) { 277 q->q[q->tail] = c; 278 q->tail = nextq(q->tail); 279#if KBDIO_DEBUG >= 2 280 ++q->call_count; 281 ++q->qcount; 282 if (q->qcount > q->max_qcount) 283 q->max_qcount = q->qcount; 284#endif 285 return TRUE; 286 } 287 return FALSE; 288} 289 290static int 291removeq(kqueue *q) 292{ 293 int c; 294 295 if (q->tail != q->head) { 296 c = q->q[q->head]; 297 q->head = nextq(q->head); 298#if KBDIO_DEBUG >= 2 299 --q->qcount; 300#endif 301 return c; 302 } 303 return -1; 304} 305 306/* 307 * device I/O routines 308 */ 309static int 310wait_while_controller_busy(struct atkbdc_softc *kbdc) 311{ 312 /* CPU will stay inside the loop for 100msec at most */ 313 int retry = 5000;
|
287 int port = kbdc->port;
| |
288 int f; 289
| 314 int f; 315
|
290 while ((f = inb(port + KBD_STATUS_PORT)) & KBDS_INPUT_BUFFER_FULL) {
| 316 while ((f = read_status(kbdc)) & KBDS_INPUT_BUFFER_FULL) {
|
291 if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) { 292 DELAY(KBDD_DELAYTIME);
| 317 if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) { 318 DELAY(KBDD_DELAYTIME);
|
293 addq(&kbdc->kbd, inb(port + KBD_DATA_PORT));
| 319 addq(&kbdc->kbd, read_data(kbdc));
|
294 } else if ((f & KBDS_BUFFER_FULL) == KBDS_AUX_BUFFER_FULL) { 295 DELAY(KBDD_DELAYTIME);
| 320 } else if ((f & KBDS_BUFFER_FULL) == KBDS_AUX_BUFFER_FULL) { 321 DELAY(KBDD_DELAYTIME);
|
296 addq(&kbdc->aux, inb(port + KBD_DATA_PORT));
| 322 addq(&kbdc->aux, read_data(kbdc));
|
297 } 298 DELAY(KBDC_DELAYTIME); 299 if (--retry < 0) 300 return FALSE; 301 } 302 return TRUE; 303} 304 305/* 306 * wait for any data; whether it's from the controller, 307 * the keyboard, or the aux device. 308 */ 309static int 310wait_for_data(struct atkbdc_softc *kbdc) 311{ 312 /* CPU will stay inside the loop for 200msec at most */ 313 int retry = 10000;
| 323 } 324 DELAY(KBDC_DELAYTIME); 325 if (--retry < 0) 326 return FALSE; 327 } 328 return TRUE; 329} 330 331/* 332 * wait for any data; whether it's from the controller, 333 * the keyboard, or the aux device. 334 */ 335static int 336wait_for_data(struct atkbdc_softc *kbdc) 337{ 338 /* CPU will stay inside the loop for 200msec at most */ 339 int retry = 10000;
|
314 int port = kbdc->port;
| |
315 int f; 316
| 340 int f; 341
|
317 while ((f = inb(port + KBD_STATUS_PORT) & KBDS_ANY_BUFFER_FULL) == 0) {
| 342 while ((f = read_status(kbdc) & KBDS_ANY_BUFFER_FULL) == 0) {
|
318 DELAY(KBDC_DELAYTIME); 319 if (--retry < 0) 320 return 0; 321 } 322 DELAY(KBDD_DELAYTIME); 323 return f; 324} 325 326/* wait for data from the keyboard */ 327static int 328wait_for_kbd_data(struct atkbdc_softc *kbdc) 329{ 330 /* CPU will stay inside the loop for 200msec at most */ 331 int retry = 10000;
| 343 DELAY(KBDC_DELAYTIME); 344 if (--retry < 0) 345 return 0; 346 } 347 DELAY(KBDD_DELAYTIME); 348 return f; 349} 350 351/* wait for data from the keyboard */ 352static int 353wait_for_kbd_data(struct atkbdc_softc *kbdc) 354{ 355 /* CPU will stay inside the loop for 200msec at most */ 356 int retry = 10000;
|
332 int port = kbdc->port;
| |
333 int f; 334
| 357 int f; 358
|
335 while ((f = inb(port + KBD_STATUS_PORT) & KBDS_BUFFER_FULL)
| 359 while ((f = read_status(kbdc) & KBDS_BUFFER_FULL)
|
336 != KBDS_KBD_BUFFER_FULL) { 337 if (f == KBDS_AUX_BUFFER_FULL) { 338 DELAY(KBDD_DELAYTIME);
| 360 != KBDS_KBD_BUFFER_FULL) { 361 if (f == KBDS_AUX_BUFFER_FULL) { 362 DELAY(KBDD_DELAYTIME);
|
339 addq(&kbdc->aux, inb(port + KBD_DATA_PORT));
| 363 addq(&kbdc->aux, read_data(kbdc));
|
340 } 341 DELAY(KBDC_DELAYTIME); 342 if (--retry < 0) 343 return 0; 344 } 345 DELAY(KBDD_DELAYTIME); 346 return f; 347} 348 349/* 350 * wait for an ACK(FAh), RESEND(FEh), or RESET_FAIL(FCh) from the keyboard. 351 * queue anything else. 352 */ 353static int 354wait_for_kbd_ack(struct atkbdc_softc *kbdc) 355{ 356 /* CPU will stay inside the loop for 200msec at most */ 357 int retry = 10000;
| 364 } 365 DELAY(KBDC_DELAYTIME); 366 if (--retry < 0) 367 return 0; 368 } 369 DELAY(KBDD_DELAYTIME); 370 return f; 371} 372 373/* 374 * wait for an ACK(FAh), RESEND(FEh), or RESET_FAIL(FCh) from the keyboard. 375 * queue anything else. 376 */ 377static int 378wait_for_kbd_ack(struct atkbdc_softc *kbdc) 379{ 380 /* CPU will stay inside the loop for 200msec at most */ 381 int retry = 10000;
|
358 int port = kbdc->port;
| |
359 int f; 360 int b; 361 362 while (retry-- > 0) {
| 382 int f; 383 int b; 384 385 while (retry-- > 0) {
|
363 if ((f = inb(port + KBD_STATUS_PORT)) & KBDS_ANY_BUFFER_FULL) {
| 386 if ((f = read_status(kbdc)) & KBDS_ANY_BUFFER_FULL) {
|
364 DELAY(KBDD_DELAYTIME);
| 387 DELAY(KBDD_DELAYTIME);
|
365 b = inb(port + KBD_DATA_PORT);
| 388 b = read_data(kbdc);
|
366 if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) { 367 if ((b == KBD_ACK) || (b == KBD_RESEND) 368 || (b == KBD_RESET_FAIL)) 369 return b; 370 addq(&kbdc->kbd, b); 371 } else if ((f & KBDS_BUFFER_FULL) == KBDS_AUX_BUFFER_FULL) { 372 addq(&kbdc->aux, b); 373 } 374 } 375 DELAY(KBDC_DELAYTIME); 376 } 377 return -1; 378} 379 380/* wait for data from the aux device */ 381static int 382wait_for_aux_data(struct atkbdc_softc *kbdc) 383{ 384 /* CPU will stay inside the loop for 200msec at most */ 385 int retry = 10000;
| 389 if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) { 390 if ((b == KBD_ACK) || (b == KBD_RESEND) 391 || (b == KBD_RESET_FAIL)) 392 return b; 393 addq(&kbdc->kbd, b); 394 } else if ((f & KBDS_BUFFER_FULL) == KBDS_AUX_BUFFER_FULL) { 395 addq(&kbdc->aux, b); 396 } 397 } 398 DELAY(KBDC_DELAYTIME); 399 } 400 return -1; 401} 402 403/* wait for data from the aux device */ 404static int 405wait_for_aux_data(struct atkbdc_softc *kbdc) 406{ 407 /* CPU will stay inside the loop for 200msec at most */ 408 int retry = 10000;
|
386 int port = kbdc->port;
| |
387 int f; 388
| 409 int f; 410
|
389 while ((f = inb(port + KBD_STATUS_PORT) & KBDS_BUFFER_FULL)
| 411 while ((f = read_status(kbdc) & KBDS_BUFFER_FULL)
|
390 != KBDS_AUX_BUFFER_FULL) { 391 if (f == KBDS_KBD_BUFFER_FULL) { 392 DELAY(KBDD_DELAYTIME);
| 412 != KBDS_AUX_BUFFER_FULL) { 413 if (f == KBDS_KBD_BUFFER_FULL) { 414 DELAY(KBDD_DELAYTIME);
|
393 addq(&kbdc->kbd, inb(port + KBD_DATA_PORT));
| 415 addq(&kbdc->kbd, read_data(kbdc));
|
394 } 395 DELAY(KBDC_DELAYTIME); 396 if (--retry < 0) 397 return 0; 398 } 399 DELAY(KBDD_DELAYTIME); 400 return f; 401} 402 403/* 404 * wait for an ACK(FAh), RESEND(FEh), or RESET_FAIL(FCh) from the aux device. 405 * queue anything else. 406 */ 407static int 408wait_for_aux_ack(struct atkbdc_softc *kbdc) 409{ 410 /* CPU will stay inside the loop for 200msec at most */ 411 int retry = 10000;
| 416 } 417 DELAY(KBDC_DELAYTIME); 418 if (--retry < 0) 419 return 0; 420 } 421 DELAY(KBDD_DELAYTIME); 422 return f; 423} 424 425/* 426 * wait for an ACK(FAh), RESEND(FEh), or RESET_FAIL(FCh) from the aux device. 427 * queue anything else. 428 */ 429static int 430wait_for_aux_ack(struct atkbdc_softc *kbdc) 431{ 432 /* CPU will stay inside the loop for 200msec at most */ 433 int retry = 10000;
|
412 int port = kbdc->port;
| |
413 int f; 414 int b; 415 416 while (retry-- > 0) {
| 434 int f; 435 int b; 436 437 while (retry-- > 0) {
|
417 if ((f = inb(port + KBD_STATUS_PORT)) & KBDS_ANY_BUFFER_FULL) {
| 438 if ((f = read_status(kbdc)) & KBDS_ANY_BUFFER_FULL) {
|
418 DELAY(KBDD_DELAYTIME);
| 439 DELAY(KBDD_DELAYTIME);
|
419 b = inb(port + KBD_DATA_PORT);
| 440 b = read_data(kbdc);
|
420 if ((f & KBDS_BUFFER_FULL) == KBDS_AUX_BUFFER_FULL) { 421 if ((b == PSM_ACK) || (b == PSM_RESEND) 422 || (b == PSM_RESET_FAIL)) 423 return b; 424 addq(&kbdc->aux, b); 425 } else if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) { 426 addq(&kbdc->kbd, b); 427 } 428 } 429 DELAY(KBDC_DELAYTIME); 430 } 431 return -1; 432} 433 434/* write a one byte command to the controller */ 435int 436write_controller_command(KBDC p, int c) 437{ 438 if (!wait_while_controller_busy(kbdcp(p))) 439 return FALSE;
| 441 if ((f & KBDS_BUFFER_FULL) == KBDS_AUX_BUFFER_FULL) { 442 if ((b == PSM_ACK) || (b == PSM_RESEND) 443 || (b == PSM_RESET_FAIL)) 444 return b; 445 addq(&kbdc->aux, b); 446 } else if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) { 447 addq(&kbdc->kbd, b); 448 } 449 } 450 DELAY(KBDC_DELAYTIME); 451 } 452 return -1; 453} 454 455/* write a one byte command to the controller */ 456int 457write_controller_command(KBDC p, int c) 458{ 459 if (!wait_while_controller_busy(kbdcp(p))) 460 return FALSE;
|
440 outb(kbdcp(p)->port + KBD_COMMAND_PORT, c);
| 461 write_command(kbdcp(p), c);
|
441 return TRUE; 442} 443 444/* write a one byte data to the controller */ 445int 446write_controller_data(KBDC p, int c) 447{ 448 if (!wait_while_controller_busy(kbdcp(p))) 449 return FALSE;
| 462 return TRUE; 463} 464 465/* write a one byte data to the controller */ 466int 467write_controller_data(KBDC p, int c) 468{ 469 if (!wait_while_controller_busy(kbdcp(p))) 470 return FALSE;
|
450 outb(kbdcp(p)->port + KBD_DATA_PORT, c);
| 471 write_data(kbdcp(p), c);
|
451 return TRUE; 452} 453 454/* write a one byte keyboard command */ 455int 456write_kbd_command(KBDC p, int c) 457{ 458 if (!wait_while_controller_busy(kbdcp(p))) 459 return FALSE;
| 472 return TRUE; 473} 474 475/* write a one byte keyboard command */ 476int 477write_kbd_command(KBDC p, int c) 478{ 479 if (!wait_while_controller_busy(kbdcp(p))) 480 return FALSE;
|
460 outb(kbdcp(p)->port + KBD_DATA_PORT, c);
| 481 write_data(kbdcp(p), c);
|
461 return TRUE; 462} 463 464/* write a one byte auxiliary device command */ 465int 466write_aux_command(KBDC p, int c) 467{ 468 if (!write_controller_command(p, KBDC_WRITE_TO_AUX)) 469 return FALSE; 470 return write_controller_data(p, c); 471} 472 473/* send a command to the keyboard and wait for ACK */ 474int 475send_kbd_command(KBDC p, int c) 476{ 477 int retry = KBD_MAXRETRY; 478 int res = -1; 479 480 while (retry-- > 0) { 481 if (!write_kbd_command(p, c)) 482 continue; 483 res = wait_for_kbd_ack(kbdcp(p)); 484 if (res == KBD_ACK) 485 break; 486 } 487 return res; 488} 489 490/* send a command to the auxiliary device and wait for ACK */ 491int 492send_aux_command(KBDC p, int c) 493{ 494 int retry = KBD_MAXRETRY; 495 int res = -1; 496 497 while (retry-- > 0) { 498 if (!write_aux_command(p, c)) 499 continue; 500 /* 501 * FIXME: XXX 502 * The aux device may have already sent one or two bytes of 503 * status data, when a command is received. It will immediately 504 * stop data transmission, thus, leaving an incomplete data 505 * packet in our buffer. We have to discard any unprocessed 506 * data in order to remove such packets. Well, we may remove 507 * unprocessed, but necessary data byte as well... 508 */ 509 emptyq(&kbdcp(p)->aux); 510 res = wait_for_aux_ack(kbdcp(p)); 511 if (res == PSM_ACK) 512 break; 513 } 514 return res; 515} 516 517/* send a command and a data to the keyboard, wait for ACKs */ 518int 519send_kbd_command_and_data(KBDC p, int c, int d) 520{ 521 int retry; 522 int res = -1; 523 524 for (retry = KBD_MAXRETRY; retry > 0; --retry) { 525 if (!write_kbd_command(p, c)) 526 continue; 527 res = wait_for_kbd_ack(kbdcp(p)); 528 if (res == KBD_ACK) 529 break; 530 else if (res != KBD_RESEND) 531 return res; 532 } 533 if (retry <= 0) 534 return res; 535 536 for (retry = KBD_MAXRETRY, res = -1; retry > 0; --retry) { 537 if (!write_kbd_command(p, d)) 538 continue; 539 res = wait_for_kbd_ack(kbdcp(p)); 540 if (res != KBD_RESEND) 541 break; 542 } 543 return res; 544} 545 546/* send a command and a data to the auxiliary device, wait for ACKs */ 547int 548send_aux_command_and_data(KBDC p, int c, int d) 549{ 550 int retry; 551 int res = -1; 552 553 for (retry = KBD_MAXRETRY; retry > 0; --retry) { 554 if (!write_aux_command(p, c)) 555 continue; 556 emptyq(&kbdcp(p)->aux); 557 res = wait_for_aux_ack(kbdcp(p)); 558 if (res == PSM_ACK) 559 break; 560 else if (res != PSM_RESEND) 561 return res; 562 } 563 if (retry <= 0) 564 return res; 565 566 for (retry = KBD_MAXRETRY, res = -1; retry > 0; --retry) { 567 if (!write_aux_command(p, d)) 568 continue; 569 res = wait_for_aux_ack(kbdcp(p)); 570 if (res != PSM_RESEND) 571 break; 572 } 573 return res; 574} 575 576/* 577 * read one byte from any source; whether from the controller, 578 * the keyboard, or the aux device 579 */ 580int 581read_controller_data(KBDC p) 582{ 583 if (availq(&kbdcp(p)->kbd)) 584 return removeq(&kbdcp(p)->kbd); 585 if (availq(&kbdcp(p)->aux)) 586 return removeq(&kbdcp(p)->aux); 587 if (!wait_for_data(kbdcp(p))) 588 return -1; /* timeout */
| 482 return TRUE; 483} 484 485/* write a one byte auxiliary device command */ 486int 487write_aux_command(KBDC p, int c) 488{ 489 if (!write_controller_command(p, KBDC_WRITE_TO_AUX)) 490 return FALSE; 491 return write_controller_data(p, c); 492} 493 494/* send a command to the keyboard and wait for ACK */ 495int 496send_kbd_command(KBDC p, int c) 497{ 498 int retry = KBD_MAXRETRY; 499 int res = -1; 500 501 while (retry-- > 0) { 502 if (!write_kbd_command(p, c)) 503 continue; 504 res = wait_for_kbd_ack(kbdcp(p)); 505 if (res == KBD_ACK) 506 break; 507 } 508 return res; 509} 510 511/* send a command to the auxiliary device and wait for ACK */ 512int 513send_aux_command(KBDC p, int c) 514{ 515 int retry = KBD_MAXRETRY; 516 int res = -1; 517 518 while (retry-- > 0) { 519 if (!write_aux_command(p, c)) 520 continue; 521 /* 522 * FIXME: XXX 523 * The aux device may have already sent one or two bytes of 524 * status data, when a command is received. It will immediately 525 * stop data transmission, thus, leaving an incomplete data 526 * packet in our buffer. We have to discard any unprocessed 527 * data in order to remove such packets. Well, we may remove 528 * unprocessed, but necessary data byte as well... 529 */ 530 emptyq(&kbdcp(p)->aux); 531 res = wait_for_aux_ack(kbdcp(p)); 532 if (res == PSM_ACK) 533 break; 534 } 535 return res; 536} 537 538/* send a command and a data to the keyboard, wait for ACKs */ 539int 540send_kbd_command_and_data(KBDC p, int c, int d) 541{ 542 int retry; 543 int res = -1; 544 545 for (retry = KBD_MAXRETRY; retry > 0; --retry) { 546 if (!write_kbd_command(p, c)) 547 continue; 548 res = wait_for_kbd_ack(kbdcp(p)); 549 if (res == KBD_ACK) 550 break; 551 else if (res != KBD_RESEND) 552 return res; 553 } 554 if (retry <= 0) 555 return res; 556 557 for (retry = KBD_MAXRETRY, res = -1; retry > 0; --retry) { 558 if (!write_kbd_command(p, d)) 559 continue; 560 res = wait_for_kbd_ack(kbdcp(p)); 561 if (res != KBD_RESEND) 562 break; 563 } 564 return res; 565} 566 567/* send a command and a data to the auxiliary device, wait for ACKs */ 568int 569send_aux_command_and_data(KBDC p, int c, int d) 570{ 571 int retry; 572 int res = -1; 573 574 for (retry = KBD_MAXRETRY; retry > 0; --retry) { 575 if (!write_aux_command(p, c)) 576 continue; 577 emptyq(&kbdcp(p)->aux); 578 res = wait_for_aux_ack(kbdcp(p)); 579 if (res == PSM_ACK) 580 break; 581 else if (res != PSM_RESEND) 582 return res; 583 } 584 if (retry <= 0) 585 return res; 586 587 for (retry = KBD_MAXRETRY, res = -1; retry > 0; --retry) { 588 if (!write_aux_command(p, d)) 589 continue; 590 res = wait_for_aux_ack(kbdcp(p)); 591 if (res != PSM_RESEND) 592 break; 593 } 594 return res; 595} 596 597/* 598 * read one byte from any source; whether from the controller, 599 * the keyboard, or the aux device 600 */ 601int 602read_controller_data(KBDC p) 603{ 604 if (availq(&kbdcp(p)->kbd)) 605 return removeq(&kbdcp(p)->kbd); 606 if (availq(&kbdcp(p)->aux)) 607 return removeq(&kbdcp(p)->aux); 608 if (!wait_for_data(kbdcp(p))) 609 return -1; /* timeout */
|
589 return inb(kbdcp(p)->port + KBD_DATA_PORT);
| 610 return read_data(kbdcp(p));
|
590} 591 592#if KBDIO_DEBUG >= 2 593static int call = 0; 594#endif 595 596/* read one byte from the keyboard */ 597int 598read_kbd_data(KBDC p) 599{ 600#if KBDIO_DEBUG >= 2 601 if (++call > 2000) { 602 call = 0; 603 log(LOG_DEBUG, "kbdc: kbd q: %d calls, max %d chars, " 604 "aux q: %d calls, max %d chars\n", 605 kbdcp(p)->kbd.call_count, kbdcp(p)->kbd.max_qcount, 606 kbdcp(p)->aux.call_count, kbdcp(p)->aux.max_qcount); 607 } 608#endif 609 610 if (availq(&kbdcp(p)->kbd)) 611 return removeq(&kbdcp(p)->kbd); 612 if (!wait_for_kbd_data(kbdcp(p))) 613 return -1; /* timeout */
| 611} 612 613#if KBDIO_DEBUG >= 2 614static int call = 0; 615#endif 616 617/* read one byte from the keyboard */ 618int 619read_kbd_data(KBDC p) 620{ 621#if KBDIO_DEBUG >= 2 622 if (++call > 2000) { 623 call = 0; 624 log(LOG_DEBUG, "kbdc: kbd q: %d calls, max %d chars, " 625 "aux q: %d calls, max %d chars\n", 626 kbdcp(p)->kbd.call_count, kbdcp(p)->kbd.max_qcount, 627 kbdcp(p)->aux.call_count, kbdcp(p)->aux.max_qcount); 628 } 629#endif 630 631 if (availq(&kbdcp(p)->kbd)) 632 return removeq(&kbdcp(p)->kbd); 633 if (!wait_for_kbd_data(kbdcp(p))) 634 return -1; /* timeout */
|
614 return inb(kbdcp(p)->port + KBD_DATA_PORT);
| 635 return read_data(kbdcp(p));
|
615} 616 617/* read one byte from the keyboard, but return immediately if 618 * no data is waiting 619 */ 620int 621read_kbd_data_no_wait(KBDC p) 622{ 623 int f; 624 625#if KBDIO_DEBUG >= 2 626 if (++call > 2000) { 627 call = 0; 628 log(LOG_DEBUG, "kbdc: kbd q: %d calls, max %d chars, " 629 "aux q: %d calls, max %d chars\n", 630 kbdcp(p)->kbd.call_count, kbdcp(p)->kbd.max_qcount, 631 kbdcp(p)->aux.call_count, kbdcp(p)->aux.max_qcount); 632 } 633#endif 634 635 if (availq(&kbdcp(p)->kbd)) 636 return removeq(&kbdcp(p)->kbd);
| 636} 637 638/* read one byte from the keyboard, but return immediately if 639 * no data is waiting 640 */ 641int 642read_kbd_data_no_wait(KBDC p) 643{ 644 int f; 645 646#if KBDIO_DEBUG >= 2 647 if (++call > 2000) { 648 call = 0; 649 log(LOG_DEBUG, "kbdc: kbd q: %d calls, max %d chars, " 650 "aux q: %d calls, max %d chars\n", 651 kbdcp(p)->kbd.call_count, kbdcp(p)->kbd.max_qcount, 652 kbdcp(p)->aux.call_count, kbdcp(p)->aux.max_qcount); 653 } 654#endif 655 656 if (availq(&kbdcp(p)->kbd)) 657 return removeq(&kbdcp(p)->kbd);
|
637 f = inb(kbdcp(p)->port + KBD_STATUS_PORT) & KBDS_BUFFER_FULL;
| 658 f = read_status(kbdcp(p)) & KBDS_BUFFER_FULL;
|
638 if (f == KBDS_AUX_BUFFER_FULL) { 639 DELAY(KBDD_DELAYTIME);
| 659 if (f == KBDS_AUX_BUFFER_FULL) { 660 DELAY(KBDD_DELAYTIME);
|
640 addq(&kbdcp(p)->aux, inb(kbdcp(p)->port + KBD_DATA_PORT)); 641 f = inb(kbdcp(p)->port + KBD_STATUS_PORT) & KBDS_BUFFER_FULL;
| 661 addq(&kbdcp(p)->aux, read_data(kbdcp(p))); 662 f = read_status(kbdcp(p)) & KBDS_BUFFER_FULL;
|
642 } 643 if (f == KBDS_KBD_BUFFER_FULL) { 644 DELAY(KBDD_DELAYTIME);
| 663 } 664 if (f == KBDS_KBD_BUFFER_FULL) { 665 DELAY(KBDD_DELAYTIME);
|
645 return inb(kbdcp(p)->port + KBD_DATA_PORT);
| 666 return read_data(kbdcp(p));
|
646 } 647 return -1; /* no data */ 648} 649 650/* read one byte from the aux device */ 651int 652read_aux_data(KBDC p) 653{ 654 if (availq(&kbdcp(p)->aux)) 655 return removeq(&kbdcp(p)->aux); 656 if (!wait_for_aux_data(kbdcp(p))) 657 return -1; /* timeout */
| 667 } 668 return -1; /* no data */ 669} 670 671/* read one byte from the aux device */ 672int 673read_aux_data(KBDC p) 674{ 675 if (availq(&kbdcp(p)->aux)) 676 return removeq(&kbdcp(p)->aux); 677 if (!wait_for_aux_data(kbdcp(p))) 678 return -1; /* timeout */
|
658 return inb(kbdcp(p)->port + KBD_DATA_PORT);
| 679 return read_data(kbdcp(p));
|
659} 660 661/* read one byte from the aux device, but return immediately if 662 * no data is waiting 663 */ 664int 665read_aux_data_no_wait(KBDC p) 666{ 667 int f; 668 669 if (availq(&kbdcp(p)->aux)) 670 return removeq(&kbdcp(p)->aux);
| 680} 681 682/* read one byte from the aux device, but return immediately if 683 * no data is waiting 684 */ 685int 686read_aux_data_no_wait(KBDC p) 687{ 688 int f; 689 690 if (availq(&kbdcp(p)->aux)) 691 return removeq(&kbdcp(p)->aux);
|
671 f = inb(kbdcp(p)->port + KBD_STATUS_PORT) & KBDS_BUFFER_FULL;
| 692 f = read_status(kbdcp(p)) & KBDS_BUFFER_FULL;
|
672 if (f == KBDS_KBD_BUFFER_FULL) { 673 DELAY(KBDD_DELAYTIME);
| 693 if (f == KBDS_KBD_BUFFER_FULL) { 694 DELAY(KBDD_DELAYTIME);
|
674 addq(&kbdcp(p)->kbd, inb(kbdcp(p)->port + KBD_DATA_PORT)); 675 f = inb(kbdcp(p)->port + KBD_STATUS_PORT) & KBDS_BUFFER_FULL;
| 695 addq(&kbdcp(p)->kbd, read_data(kbdcp(p))); 696 f = read_status(kbdcp(p)) & KBDS_BUFFER_FULL;
|
676 } 677 if (f == KBDS_AUX_BUFFER_FULL) { 678 DELAY(KBDD_DELAYTIME);
| 697 } 698 if (f == KBDS_AUX_BUFFER_FULL) { 699 DELAY(KBDD_DELAYTIME);
|
679 return inb(kbdcp(p)->port + KBD_DATA_PORT);
| 700 return read_data(kbdcp(p));
|
680 } 681 return -1; /* no data */ 682} 683 684/* discard data from the keyboard */ 685void 686empty_kbd_buffer(KBDC p, int wait) 687{ 688 int t; 689 int b; 690 int f; 691#if KBDIO_DEBUG >= 2 692 int c1 = 0; 693 int c2 = 0; 694#endif 695 int delta = 2; 696 697 for (t = wait; t > 0; ) {
| 701 } 702 return -1; /* no data */ 703} 704 705/* discard data from the keyboard */ 706void 707empty_kbd_buffer(KBDC p, int wait) 708{ 709 int t; 710 int b; 711 int f; 712#if KBDIO_DEBUG >= 2 713 int c1 = 0; 714 int c2 = 0; 715#endif 716 int delta = 2; 717 718 for (t = wait; t > 0; ) {
|
698 if ((f = inb(kbdcp(p)->port + KBD_STATUS_PORT)) & KBDS_ANY_BUFFER_FULL) {
| 719 if ((f = read_status(kbdcp(p))) & KBDS_ANY_BUFFER_FULL) {
|
699 DELAY(KBDD_DELAYTIME);
| 720 DELAY(KBDD_DELAYTIME);
|
700 b = inb(kbdcp(p)->port + KBD_DATA_PORT);
| 721 b = read_data(kbdcp(p));
|
701 if ((f & KBDS_BUFFER_FULL) == KBDS_AUX_BUFFER_FULL) { 702 addq(&kbdcp(p)->aux, b); 703#if KBDIO_DEBUG >= 2 704 ++c2; 705 } else { 706 ++c1; 707#endif 708 } 709 t = wait; 710 } else { 711 t -= delta; 712 } 713 DELAY(delta*1000); 714 } 715#if KBDIO_DEBUG >= 2 716 if ((c1 > 0) || (c2 > 0)) 717 log(LOG_DEBUG, "kbdc: %d:%d char read (empty_kbd_buffer)\n", c1, c2); 718#endif 719 720 emptyq(&kbdcp(p)->kbd); 721} 722 723/* discard data from the aux device */ 724void 725empty_aux_buffer(KBDC p, int wait) 726{ 727 int t; 728 int b; 729 int f; 730#if KBDIO_DEBUG >= 2 731 int c1 = 0; 732 int c2 = 0; 733#endif 734 int delta = 2; 735 736 for (t = wait; t > 0; ) {
| 722 if ((f & KBDS_BUFFER_FULL) == KBDS_AUX_BUFFER_FULL) { 723 addq(&kbdcp(p)->aux, b); 724#if KBDIO_DEBUG >= 2 725 ++c2; 726 } else { 727 ++c1; 728#endif 729 } 730 t = wait; 731 } else { 732 t -= delta; 733 } 734 DELAY(delta*1000); 735 } 736#if KBDIO_DEBUG >= 2 737 if ((c1 > 0) || (c2 > 0)) 738 log(LOG_DEBUG, "kbdc: %d:%d char read (empty_kbd_buffer)\n", c1, c2); 739#endif 740 741 emptyq(&kbdcp(p)->kbd); 742} 743 744/* discard data from the aux device */ 745void 746empty_aux_buffer(KBDC p, int wait) 747{ 748 int t; 749 int b; 750 int f; 751#if KBDIO_DEBUG >= 2 752 int c1 = 0; 753 int c2 = 0; 754#endif 755 int delta = 2; 756 757 for (t = wait; t > 0; ) {
|
737 if ((f = inb(kbdcp(p)->port + KBD_STATUS_PORT)) & KBDS_ANY_BUFFER_FULL) {
| 758 if ((f = read_status(kbdcp(p))) & KBDS_ANY_BUFFER_FULL) {
|
738 DELAY(KBDD_DELAYTIME);
| 759 DELAY(KBDD_DELAYTIME);
|
739 b = inb(kbdcp(p)->port + KBD_DATA_PORT);
| 760 b = read_data(kbdcp(p));
|
740 if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) { 741 addq(&kbdcp(p)->kbd, b); 742#if KBDIO_DEBUG >= 2 743 ++c1; 744 } else { 745 ++c2; 746#endif 747 } 748 t = wait; 749 } else { 750 t -= delta; 751 } 752 DELAY(delta*1000); 753 } 754#if KBDIO_DEBUG >= 2 755 if ((c1 > 0) || (c2 > 0)) 756 log(LOG_DEBUG, "kbdc: %d:%d char read (empty_aux_buffer)\n", c1, c2); 757#endif 758 759 emptyq(&kbdcp(p)->aux); 760} 761 762/* discard any data from the keyboard or the aux device */ 763void 764empty_both_buffers(KBDC p, int wait) 765{ 766 int t; 767 int f; 768#if KBDIO_DEBUG >= 2 769 int c1 = 0; 770 int c2 = 0; 771#endif 772 int delta = 2; 773 774 for (t = wait; t > 0; ) {
| 761 if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) { 762 addq(&kbdcp(p)->kbd, b); 763#if KBDIO_DEBUG >= 2 764 ++c1; 765 } else { 766 ++c2; 767#endif 768 } 769 t = wait; 770 } else { 771 t -= delta; 772 } 773 DELAY(delta*1000); 774 } 775#if KBDIO_DEBUG >= 2 776 if ((c1 > 0) || (c2 > 0)) 777 log(LOG_DEBUG, "kbdc: %d:%d char read (empty_aux_buffer)\n", c1, c2); 778#endif 779 780 emptyq(&kbdcp(p)->aux); 781} 782 783/* discard any data from the keyboard or the aux device */ 784void 785empty_both_buffers(KBDC p, int wait) 786{ 787 int t; 788 int f; 789#if KBDIO_DEBUG >= 2 790 int c1 = 0; 791 int c2 = 0; 792#endif 793 int delta = 2; 794 795 for (t = wait; t > 0; ) {
|
775 if ((f = inb(kbdcp(p)->port + KBD_STATUS_PORT)) & KBDS_ANY_BUFFER_FULL) {
| 796 if ((f = read_status(kbdcp(p))) & KBDS_ANY_BUFFER_FULL) {
|
776 DELAY(KBDD_DELAYTIME);
| 797 DELAY(KBDD_DELAYTIME);
|
777 (void)inb(kbdcp(p)->port + KBD_DATA_PORT);
| 798 (void)read_data(kbdcp(p));
|
778#if KBDIO_DEBUG >= 2 779 if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) 780 ++c1; 781 else 782 ++c2; 783#endif 784 t = wait; 785 } else { 786 t -= delta; 787 } 788 DELAY(delta*1000); 789 } 790#if KBDIO_DEBUG >= 2 791 if ((c1 > 0) || (c2 > 0)) 792 log(LOG_DEBUG, "kbdc: %d:%d char read (empty_both_buffers)\n", c1, c2); 793#endif 794 795 emptyq(&kbdcp(p)->kbd); 796 emptyq(&kbdcp(p)->aux); 797} 798 799/* keyboard and mouse device control */ 800 801/* NOTE: enable the keyboard port but disable the keyboard 802 * interrupt before calling "reset_kbd()". 803 */ 804int 805reset_kbd(KBDC p) 806{ 807 int retry = KBD_MAXRETRY; 808 int again = KBD_MAXWAIT; 809 int c = KBD_RESEND; /* keep the compiler happy */ 810 811 while (retry-- > 0) { 812 empty_both_buffers(p, 10); 813 if (!write_kbd_command(p, KBDC_RESET_KBD)) 814 continue; 815 emptyq(&kbdcp(p)->kbd); 816 c = read_controller_data(p); 817 if (verbose || bootverbose) 818 log(LOG_DEBUG, "kbdc: RESET_KBD return code:%04x\n", c); 819 if (c == KBD_ACK) /* keyboard has agreed to reset itself... */ 820 break; 821 } 822 if (retry < 0) 823 return FALSE; 824 825 while (again-- > 0) { 826 /* wait awhile, well, in fact we must wait quite loooooooooooong */ 827 DELAY(KBD_RESETDELAY*1000); 828 c = read_controller_data(p); /* RESET_DONE/RESET_FAIL */ 829 if (c != -1) /* wait again if the controller is not ready */ 830 break; 831 } 832 if (verbose || bootverbose) 833 log(LOG_DEBUG, "kbdc: RESET_KBD status:%04x\n", c); 834 if (c != KBD_RESET_DONE) 835 return FALSE; 836 return TRUE; 837} 838 839/* NOTE: enable the aux port but disable the aux interrupt 840 * before calling `reset_aux_dev()'. 841 */ 842int 843reset_aux_dev(KBDC p) 844{ 845 int retry = KBD_MAXRETRY; 846 int again = KBD_MAXWAIT; 847 int c = PSM_RESEND; /* keep the compiler happy */ 848 849 while (retry-- > 0) { 850 empty_both_buffers(p, 10); 851 if (!write_aux_command(p, PSMC_RESET_DEV)) 852 continue; 853 emptyq(&kbdcp(p)->aux); 854 /* NOTE: Compaq Armada laptops require extra delay here. XXX */ 855 for (again = KBD_MAXWAIT; again > 0; --again) { 856 DELAY(KBD_RESETDELAY*1000); 857 c = read_aux_data_no_wait(p); 858 if (c != -1) 859 break; 860 } 861 if (verbose || bootverbose) 862 log(LOG_DEBUG, "kbdc: RESET_AUX return code:%04x\n", c); 863 if (c == PSM_ACK) /* aux dev is about to reset... */ 864 break; 865 } 866 if (retry < 0) 867 return FALSE; 868 869 for (again = KBD_MAXWAIT; again > 0; --again) { 870 /* wait awhile, well, quite looooooooooooong */ 871 DELAY(KBD_RESETDELAY*1000); 872 c = read_aux_data_no_wait(p); /* RESET_DONE/RESET_FAIL */ 873 if (c != -1) /* wait again if the controller is not ready */ 874 break; 875 } 876 if (verbose || bootverbose) 877 log(LOG_DEBUG, "kbdc: RESET_AUX status:%04x\n", c); 878 if (c != PSM_RESET_DONE) /* reset status */ 879 return FALSE; 880 881 c = read_aux_data(p); /* device ID */ 882 if (verbose || bootverbose) 883 log(LOG_DEBUG, "kbdc: RESET_AUX ID:%04x\n", c); 884 /* NOTE: we could check the device ID now, but leave it later... */ 885 return TRUE; 886} 887 888/* controller diagnostics and setup */ 889 890int 891test_controller(KBDC p) 892{ 893 int retry = KBD_MAXRETRY; 894 int again = KBD_MAXWAIT; 895 int c = KBD_DIAG_FAIL; 896 897 while (retry-- > 0) { 898 empty_both_buffers(p, 10); 899 if (write_controller_command(p, KBDC_DIAGNOSE)) 900 break; 901 } 902 if (retry < 0) 903 return FALSE; 904 905 emptyq(&kbdcp(p)->kbd); 906 while (again-- > 0) { 907 /* wait awhile */ 908 DELAY(KBD_RESETDELAY*1000); 909 c = read_controller_data(p); /* DIAG_DONE/DIAG_FAIL */ 910 if (c != -1) /* wait again if the controller is not ready */ 911 break; 912 } 913 if (verbose || bootverbose) 914 log(LOG_DEBUG, "kbdc: DIAGNOSE status:%04x\n", c); 915 return (c == KBD_DIAG_DONE); 916} 917 918int 919test_kbd_port(KBDC p) 920{ 921 int retry = KBD_MAXRETRY; 922 int again = KBD_MAXWAIT; 923 int c = -1; 924 925 while (retry-- > 0) { 926 empty_both_buffers(p, 10); 927 if (write_controller_command(p, KBDC_TEST_KBD_PORT)) 928 break; 929 } 930 if (retry < 0) 931 return FALSE; 932 933 emptyq(&kbdcp(p)->kbd); 934 while (again-- > 0) { 935 c = read_controller_data(p); 936 if (c != -1) /* try again if the controller is not ready */ 937 break; 938 } 939 if (verbose || bootverbose) 940 log(LOG_DEBUG, "kbdc: TEST_KBD_PORT status:%04x\n", c); 941 return c; 942} 943 944int 945test_aux_port(KBDC p) 946{ 947 int retry = KBD_MAXRETRY; 948 int again = KBD_MAXWAIT; 949 int c = -1; 950 951 while (retry-- > 0) { 952 empty_both_buffers(p, 10); 953 if (write_controller_command(p, KBDC_TEST_AUX_PORT)) 954 break; 955 } 956 if (retry < 0) 957 return FALSE; 958 959 emptyq(&kbdcp(p)->kbd); 960 while (again-- > 0) { 961 c = read_controller_data(p); 962 if (c != -1) /* try again if the controller is not ready */ 963 break; 964 } 965 if (verbose || bootverbose) 966 log(LOG_DEBUG, "kbdc: TEST_AUX_PORT status:%04x\n", c); 967 return c; 968} 969 970int 971kbdc_get_device_mask(KBDC p) 972{ 973 return kbdcp(p)->command_mask; 974} 975 976void 977kbdc_set_device_mask(KBDC p, int mask) 978{ 979 kbdcp(p)->command_mask = 980 mask & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS); 981} 982 983int 984get_controller_command_byte(KBDC p) 985{ 986 if (kbdcp(p)->command_byte != -1) 987 return kbdcp(p)->command_byte; 988 if (!write_controller_command(p, KBDC_GET_COMMAND_BYTE)) 989 return -1; 990 emptyq(&kbdcp(p)->kbd); 991 kbdcp(p)->command_byte = read_controller_data(p); 992 return kbdcp(p)->command_byte; 993} 994 995int 996set_controller_command_byte(KBDC p, int mask, int command) 997{ 998 if (get_controller_command_byte(p) == -1) 999 return FALSE; 1000 1001 command = (kbdcp(p)->command_byte & ~mask) | (command & mask); 1002 if (command & KBD_DISABLE_KBD_PORT) { 1003 if (!write_controller_command(p, KBDC_DISABLE_KBD_PORT)) 1004 return FALSE; 1005 } 1006 if (!write_controller_command(p, KBDC_SET_COMMAND_BYTE)) 1007 return FALSE; 1008 if (!write_controller_data(p, command)) 1009 return FALSE; 1010 kbdcp(p)->command_byte = command; 1011 1012 if (verbose) 1013 log(LOG_DEBUG, "kbdc: new command byte:%04x (set_controller...)\n", 1014 command); 1015 1016 return TRUE; 1017}
| 799#if KBDIO_DEBUG >= 2 800 if ((f & KBDS_BUFFER_FULL) == KBDS_KBD_BUFFER_FULL) 801 ++c1; 802 else 803 ++c2; 804#endif 805 t = wait; 806 } else { 807 t -= delta; 808 } 809 DELAY(delta*1000); 810 } 811#if KBDIO_DEBUG >= 2 812 if ((c1 > 0) || (c2 > 0)) 813 log(LOG_DEBUG, "kbdc: %d:%d char read (empty_both_buffers)\n", c1, c2); 814#endif 815 816 emptyq(&kbdcp(p)->kbd); 817 emptyq(&kbdcp(p)->aux); 818} 819 820/* keyboard and mouse device control */ 821 822/* NOTE: enable the keyboard port but disable the keyboard 823 * interrupt before calling "reset_kbd()". 824 */ 825int 826reset_kbd(KBDC p) 827{ 828 int retry = KBD_MAXRETRY; 829 int again = KBD_MAXWAIT; 830 int c = KBD_RESEND; /* keep the compiler happy */ 831 832 while (retry-- > 0) { 833 empty_both_buffers(p, 10); 834 if (!write_kbd_command(p, KBDC_RESET_KBD)) 835 continue; 836 emptyq(&kbdcp(p)->kbd); 837 c = read_controller_data(p); 838 if (verbose || bootverbose) 839 log(LOG_DEBUG, "kbdc: RESET_KBD return code:%04x\n", c); 840 if (c == KBD_ACK) /* keyboard has agreed to reset itself... */ 841 break; 842 } 843 if (retry < 0) 844 return FALSE; 845 846 while (again-- > 0) { 847 /* wait awhile, well, in fact we must wait quite loooooooooooong */ 848 DELAY(KBD_RESETDELAY*1000); 849 c = read_controller_data(p); /* RESET_DONE/RESET_FAIL */ 850 if (c != -1) /* wait again if the controller is not ready */ 851 break; 852 } 853 if (verbose || bootverbose) 854 log(LOG_DEBUG, "kbdc: RESET_KBD status:%04x\n", c); 855 if (c != KBD_RESET_DONE) 856 return FALSE; 857 return TRUE; 858} 859 860/* NOTE: enable the aux port but disable the aux interrupt 861 * before calling `reset_aux_dev()'. 862 */ 863int 864reset_aux_dev(KBDC p) 865{ 866 int retry = KBD_MAXRETRY; 867 int again = KBD_MAXWAIT; 868 int c = PSM_RESEND; /* keep the compiler happy */ 869 870 while (retry-- > 0) { 871 empty_both_buffers(p, 10); 872 if (!write_aux_command(p, PSMC_RESET_DEV)) 873 continue; 874 emptyq(&kbdcp(p)->aux); 875 /* NOTE: Compaq Armada laptops require extra delay here. XXX */ 876 for (again = KBD_MAXWAIT; again > 0; --again) { 877 DELAY(KBD_RESETDELAY*1000); 878 c = read_aux_data_no_wait(p); 879 if (c != -1) 880 break; 881 } 882 if (verbose || bootverbose) 883 log(LOG_DEBUG, "kbdc: RESET_AUX return code:%04x\n", c); 884 if (c == PSM_ACK) /* aux dev is about to reset... */ 885 break; 886 } 887 if (retry < 0) 888 return FALSE; 889 890 for (again = KBD_MAXWAIT; again > 0; --again) { 891 /* wait awhile, well, quite looooooooooooong */ 892 DELAY(KBD_RESETDELAY*1000); 893 c = read_aux_data_no_wait(p); /* RESET_DONE/RESET_FAIL */ 894 if (c != -1) /* wait again if the controller is not ready */ 895 break; 896 } 897 if (verbose || bootverbose) 898 log(LOG_DEBUG, "kbdc: RESET_AUX status:%04x\n", c); 899 if (c != PSM_RESET_DONE) /* reset status */ 900 return FALSE; 901 902 c = read_aux_data(p); /* device ID */ 903 if (verbose || bootverbose) 904 log(LOG_DEBUG, "kbdc: RESET_AUX ID:%04x\n", c); 905 /* NOTE: we could check the device ID now, but leave it later... */ 906 return TRUE; 907} 908 909/* controller diagnostics and setup */ 910 911int 912test_controller(KBDC p) 913{ 914 int retry = KBD_MAXRETRY; 915 int again = KBD_MAXWAIT; 916 int c = KBD_DIAG_FAIL; 917 918 while (retry-- > 0) { 919 empty_both_buffers(p, 10); 920 if (write_controller_command(p, KBDC_DIAGNOSE)) 921 break; 922 } 923 if (retry < 0) 924 return FALSE; 925 926 emptyq(&kbdcp(p)->kbd); 927 while (again-- > 0) { 928 /* wait awhile */ 929 DELAY(KBD_RESETDELAY*1000); 930 c = read_controller_data(p); /* DIAG_DONE/DIAG_FAIL */ 931 if (c != -1) /* wait again if the controller is not ready */ 932 break; 933 } 934 if (verbose || bootverbose) 935 log(LOG_DEBUG, "kbdc: DIAGNOSE status:%04x\n", c); 936 return (c == KBD_DIAG_DONE); 937} 938 939int 940test_kbd_port(KBDC p) 941{ 942 int retry = KBD_MAXRETRY; 943 int again = KBD_MAXWAIT; 944 int c = -1; 945 946 while (retry-- > 0) { 947 empty_both_buffers(p, 10); 948 if (write_controller_command(p, KBDC_TEST_KBD_PORT)) 949 break; 950 } 951 if (retry < 0) 952 return FALSE; 953 954 emptyq(&kbdcp(p)->kbd); 955 while (again-- > 0) { 956 c = read_controller_data(p); 957 if (c != -1) /* try again if the controller is not ready */ 958 break; 959 } 960 if (verbose || bootverbose) 961 log(LOG_DEBUG, "kbdc: TEST_KBD_PORT status:%04x\n", c); 962 return c; 963} 964 965int 966test_aux_port(KBDC p) 967{ 968 int retry = KBD_MAXRETRY; 969 int again = KBD_MAXWAIT; 970 int c = -1; 971 972 while (retry-- > 0) { 973 empty_both_buffers(p, 10); 974 if (write_controller_command(p, KBDC_TEST_AUX_PORT)) 975 break; 976 } 977 if (retry < 0) 978 return FALSE; 979 980 emptyq(&kbdcp(p)->kbd); 981 while (again-- > 0) { 982 c = read_controller_data(p); 983 if (c != -1) /* try again if the controller is not ready */ 984 break; 985 } 986 if (verbose || bootverbose) 987 log(LOG_DEBUG, "kbdc: TEST_AUX_PORT status:%04x\n", c); 988 return c; 989} 990 991int 992kbdc_get_device_mask(KBDC p) 993{ 994 return kbdcp(p)->command_mask; 995} 996 997void 998kbdc_set_device_mask(KBDC p, int mask) 999{ 1000 kbdcp(p)->command_mask = 1001 mask & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS); 1002} 1003 1004int 1005get_controller_command_byte(KBDC p) 1006{ 1007 if (kbdcp(p)->command_byte != -1) 1008 return kbdcp(p)->command_byte; 1009 if (!write_controller_command(p, KBDC_GET_COMMAND_BYTE)) 1010 return -1; 1011 emptyq(&kbdcp(p)->kbd); 1012 kbdcp(p)->command_byte = read_controller_data(p); 1013 return kbdcp(p)->command_byte; 1014} 1015 1016int 1017set_controller_command_byte(KBDC p, int mask, int command) 1018{ 1019 if (get_controller_command_byte(p) == -1) 1020 return FALSE; 1021 1022 command = (kbdcp(p)->command_byte & ~mask) | (command & mask); 1023 if (command & KBD_DISABLE_KBD_PORT) { 1024 if (!write_controller_command(p, KBDC_DISABLE_KBD_PORT)) 1025 return FALSE; 1026 } 1027 if (!write_controller_command(p, KBDC_SET_COMMAND_BYTE)) 1028 return FALSE; 1029 if (!write_controller_data(p, command)) 1030 return FALSE; 1031 kbdcp(p)->command_byte = command; 1032 1033 if (verbose) 1034 log(LOG_DEBUG, "kbdc: new command byte:%04x (set_controller...)\n", 1035 command); 1036 1037 return TRUE; 1038}
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