1 /*
2 *
3 * smapi.c -- SMAPI interface routines
4 *
5 *
6 * Written By: Mike Sullivan IBM Corporation
7 *
8 * Copyright (C) 1999 IBM Corporation
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * NO WARRANTY
21 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
22 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
24 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
25 * solely responsible for determining the appropriateness of using and
26 * distributing the Program and assumes all risks associated with its
27 * exercise of rights under this Agreement, including but not limited to
28 * the risks and costs of program errors, damage to or loss of data,
29 * programs or equipment, and unavailability or interruption of operations.
30 *
31 * DISCLAIMER OF LIABILITY
32 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
38 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
39 *
40 * You should have received a copy of the GNU General Public License
41 * along with this program; if not, write to the Free Software
42 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
43 *
44 *
45 * 10/23/2000 - Alpha Release
46 * First release to the public
47 */
48
49 #include <linux/kernel.h>
50 #include <linux/mc146818rtc.h> /* CMOS defines */
51 #include "smapi.h"
52 #include "mwavedd.h"
53
54 static unsigned short g_usSmapiPort = 0;
55
56
smapi_request(unsigned short inBX,unsigned short inCX,unsigned short inDI,unsigned short inSI,unsigned short * outAX,unsigned short * outBX,unsigned short * outCX,unsigned short * outDX,unsigned short * outDI,unsigned short * outSI)57 static int smapi_request(unsigned short inBX, unsigned short inCX,
58 unsigned short inDI, unsigned short inSI,
59 unsigned short *outAX, unsigned short *outBX,
60 unsigned short *outCX, unsigned short *outDX,
61 unsigned short *outDI, unsigned short *outSI)
62 {
63 unsigned short myoutAX = 2, *pmyoutAX = &myoutAX;
64 unsigned short myoutBX = 3, *pmyoutBX = &myoutBX;
65 unsigned short myoutCX = 4, *pmyoutCX = &myoutCX;
66 unsigned short myoutDX = 5, *pmyoutDX = &myoutDX;
67 unsigned short myoutDI = 6, *pmyoutDI = &myoutDI;
68 unsigned short myoutSI = 7, *pmyoutSI = &myoutSI;
69 unsigned short usSmapiOK = -EIO, *pusSmapiOK = &usSmapiOK;
70 unsigned int inBXCX = (inBX << 16) | inCX;
71 unsigned int inDISI = (inDI << 16) | inSI;
72 int retval = 0;
73
74 PRINTK_5(TRACE_SMAPI, "inBX %x inCX %x inDI %x inSI %x\n",
75 inBX, inCX, inDI, inSI);
76
77 __asm__ __volatile__("movw $0x5380,%%ax\n\t"
78 "movl %7,%%ebx\n\t"
79 "shrl $16, %%ebx\n\t"
80 "movw %7,%%cx\n\t"
81 "movl %8,%%edi\n\t"
82 "shrl $16,%%edi\n\t"
83 "movw %8,%%si\n\t"
84 "movw %9,%%dx\n\t"
85 "out %%al,%%dx\n\t"
86 "out %%al,$0x4F\n\t"
87 "cmpb $0x53,%%ah\n\t"
88 "je 2f\n\t"
89 "1:\n\t"
90 "orb %%ah,%%ah\n\t"
91 "jnz 2f\n\t"
92 "movw %%ax,%0\n\t"
93 "movw %%bx,%1\n\t"
94 "movw %%cx,%2\n\t"
95 "movw %%dx,%3\n\t"
96 "movw %%di,%4\n\t"
97 "movw %%si,%5\n\t"
98 "movw $1,%6\n\t"
99 "2:\n\t":"=m"(*(unsigned short *) pmyoutAX),
100 "=m"(*(unsigned short *) pmyoutBX),
101 "=m"(*(unsigned short *) pmyoutCX),
102 "=m"(*(unsigned short *) pmyoutDX),
103 "=m"(*(unsigned short *) pmyoutDI),
104 "=m"(*(unsigned short *) pmyoutSI),
105 "=m"(*(unsigned short *) pusSmapiOK)
106 :"m"(inBXCX), "m"(inDISI), "m"(g_usSmapiPort)
107 :"%eax", "%ebx", "%ecx", "%edx", "%edi",
108 "%esi");
109
110 PRINTK_8(TRACE_SMAPI,
111 "myoutAX %x myoutBX %x myoutCX %x myoutDX %x myoutDI %x myoutSI %x usSmapiOK %x\n",
112 myoutAX, myoutBX, myoutCX, myoutDX, myoutDI, myoutSI,
113 usSmapiOK);
114 *outAX = myoutAX;
115 *outBX = myoutBX;
116 *outCX = myoutCX;
117 *outDX = myoutDX;
118 *outDI = myoutDI;
119 *outSI = myoutSI;
120
121 retval = (usSmapiOK == 1) ? 0 : -EIO;
122 PRINTK_2(TRACE_SMAPI, "smapi::smapi_request exit retval %x\n", retval);
123 return retval;
124 }
125
126
smapi_query_DSP_cfg(SMAPI_DSP_SETTINGS * pSettings)127 int smapi_query_DSP_cfg(SMAPI_DSP_SETTINGS * pSettings)
128 {
129 int bRC = -EIO;
130 unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
131 static const unsigned short ausDspBases[] = {
132 0x0030, 0x4E30, 0x8E30, 0xCE30,
133 0x0130, 0x0350, 0x0070, 0x0DB0 };
134 static const unsigned short ausUartBases[] = {
135 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
136
137 PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg entry\n");
138
139 bRC = smapi_request(0x1802, 0x0000, 0, 0,
140 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
141 if (bRC) {
142 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Error: Could not get DSP Settings. Aborting.\n");
143 return bRC;
144 }
145
146 PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");
147
148 pSettings->bDSPPresent = ((usBX & 0x0100) != 0);
149 pSettings->bDSPEnabled = ((usCX & 0x0001) != 0);
150 pSettings->usDspIRQ = usSI & 0x00FF;
151 pSettings->usDspDMA = (usSI & 0xFF00) >> 8;
152 if ((usDI & 0x00FF) < ARRAY_SIZE(ausDspBases)) {
153 pSettings->usDspBaseIO = ausDspBases[usDI & 0x00FF];
154 } else {
155 pSettings->usDspBaseIO = 0;
156 }
157 PRINTK_6(TRACE_SMAPI,
158 "smapi::smapi_query_DSP_cfg get DSP Settings bDSPPresent %x bDSPEnabled %x usDspIRQ %x usDspDMA %x usDspBaseIO %x\n",
159 pSettings->bDSPPresent, pSettings->bDSPEnabled,
160 pSettings->usDspIRQ, pSettings->usDspDMA,
161 pSettings->usDspBaseIO);
162
163 /* check for illegal values */
164 if ( pSettings->usDspBaseIO == 0 )
165 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP base I/O address is 0\n");
166 if ( pSettings->usDspIRQ == 0 )
167 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP IRQ line is 0\n");
168
169 bRC = smapi_request(0x1804, 0x0000, 0, 0,
170 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
171 if (bRC) {
172 PRINTK_ERROR("smapi::smapi_query_DSP_cfg: Error: Could not get DSP modem settings. Aborting.\n");
173 return bRC;
174 }
175
176 PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");
177
178 pSettings->bModemEnabled = ((usCX & 0x0001) != 0);
179 pSettings->usUartIRQ = usSI & 0x000F;
180 if (((usSI & 0xFF00) >> 8) < ARRAY_SIZE(ausUartBases)) {
181 pSettings->usUartBaseIO = ausUartBases[(usSI & 0xFF00) >> 8];
182 } else {
183 pSettings->usUartBaseIO = 0;
184 }
185
186 PRINTK_4(TRACE_SMAPI,
187 "smapi::smapi_query_DSP_cfg get DSP modem settings bModemEnabled %x usUartIRQ %x usUartBaseIO %x\n",
188 pSettings->bModemEnabled,
189 pSettings->usUartIRQ,
190 pSettings->usUartBaseIO);
191
192 /* check for illegal values */
193 if ( pSettings->usUartBaseIO == 0 )
194 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART base I/O address is 0\n");
195 if ( pSettings->usUartIRQ == 0 )
196 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART IRQ line is 0\n");
197
198 PRINTK_2(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg exit bRC %x\n", bRC);
199
200 return bRC;
201 }
202
203
smapi_set_DSP_cfg(void)204 int smapi_set_DSP_cfg(void)
205 {
206 int bRC = -EIO;
207 int i;
208 unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
209 static const unsigned short ausDspBases[] = {
210 0x0030, 0x4E30, 0x8E30, 0xCE30,
211 0x0130, 0x0350, 0x0070, 0x0DB0 };
212 static const unsigned short ausUartBases[] = {
213 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
214 static const unsigned short ausDspIrqs[] = {
215 5, 7, 10, 11, 15 };
216 static const unsigned short ausUartIrqs[] = {
217 3, 4 };
218
219 unsigned short dspio_index = 0, uartio_index = 0;
220
221 PRINTK_5(TRACE_SMAPI,
222 "smapi::smapi_set_DSP_cfg entry mwave_3780i_irq %x mwave_3780i_io %x mwave_uart_irq %x mwave_uart_io %x\n",
223 mwave_3780i_irq, mwave_3780i_io, mwave_uart_irq, mwave_uart_io);
224
225 if (mwave_3780i_io) {
226 for (i = 0; i < ARRAY_SIZE(ausDspBases); i++) {
227 if (mwave_3780i_io == ausDspBases[i])
228 break;
229 }
230 if (i == ARRAY_SIZE(ausDspBases)) {
231 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_io address %x. Aborting.\n", mwave_3780i_io);
232 return bRC;
233 }
234 dspio_index = i;
235 }
236
237 if (mwave_3780i_irq) {
238 for (i = 0; i < ARRAY_SIZE(ausDspIrqs); i++) {
239 if (mwave_3780i_irq == ausDspIrqs[i])
240 break;
241 }
242 if (i == ARRAY_SIZE(ausDspIrqs)) {
243 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_irq %x. Aborting.\n", mwave_3780i_irq);
244 return bRC;
245 }
246 }
247
248 if (mwave_uart_io) {
249 for (i = 0; i < ARRAY_SIZE(ausUartBases); i++) {
250 if (mwave_uart_io == ausUartBases[i])
251 break;
252 }
253 if (i == ARRAY_SIZE(ausUartBases)) {
254 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_io address %x. Aborting.\n", mwave_uart_io);
255 return bRC;
256 }
257 uartio_index = i;
258 }
259
260
261 if (mwave_uart_irq) {
262 for (i = 0; i < ARRAY_SIZE(ausUartIrqs); i++) {
263 if (mwave_uart_irq == ausUartIrqs[i])
264 break;
265 }
266 if (i == ARRAY_SIZE(ausUartIrqs)) {
267 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_irq %x. Aborting.\n", mwave_uart_irq);
268 return bRC;
269 }
270 }
271
272 if (mwave_uart_irq || mwave_uart_io) {
273
274 /* Check serial port A */
275 bRC = smapi_request(0x1402, 0x0000, 0, 0,
276 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
277 if (bRC) goto exit_smapi_request_error;
278 /* bRC == 0 */
279 if (usBX & 0x0100) { /* serial port A is present */
280 if (usCX & 1) { /* serial port is enabled */
281 if ((usSI & 0xFF) == mwave_uart_irq) {
282 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
283 PRINTK_ERROR(KERN_ERR_MWAVE
284 "smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
285 #else
286 PRINTK_3(TRACE_SMAPI,
287 "smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
288 #endif
289 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
290 PRINTK_1(TRACE_SMAPI,
291 "smapi::smapi_set_DSP_cfg Disabling conflicting serial port\n");
292 bRC = smapi_request(0x1403, 0x0100, 0, usSI,
293 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
294 if (bRC) goto exit_smapi_request_error;
295 bRC = smapi_request(0x1402, 0x0000, 0, 0,
296 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
297 if (bRC) goto exit_smapi_request_error;
298 #else
299 goto exit_conflict;
300 #endif
301 } else {
302 if ((usSI >> 8) == uartio_index) {
303 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
304 PRINTK_ERROR(KERN_ERR_MWAVE
305 "smapi::smapi_set_DSP_cfg: Serial port A base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
306 #else
307 PRINTK_3(TRACE_SMAPI,
308 "smapi::smapi_set_DSP_cfg: Serial port A base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
309 #endif
310 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
311 PRINTK_1(TRACE_SMAPI,
312 "smapi::smapi_set_DSP_cfg Disabling conflicting serial port A\n");
313 bRC = smapi_request (0x1403, 0x0100, 0, usSI,
314 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
315 if (bRC) goto exit_smapi_request_error;
316 bRC = smapi_request (0x1402, 0x0000, 0, 0,
317 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
318 if (bRC) goto exit_smapi_request_error;
319 #else
320 goto exit_conflict;
321 #endif
322 }
323 }
324 }
325 }
326
327 /* Check serial port B */
328 bRC = smapi_request(0x1404, 0x0000, 0, 0,
329 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
330 if (bRC) goto exit_smapi_request_error;
331 /* bRC == 0 */
332 if (usBX & 0x0100) { /* serial port B is present */
333 if (usCX & 1) { /* serial port is enabled */
334 if ((usSI & 0xFF) == mwave_uart_irq) {
335 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
336 PRINTK_ERROR(KERN_ERR_MWAVE
337 "smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
338 #else
339 PRINTK_3(TRACE_SMAPI,
340 "smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
341 #endif
342 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
343 PRINTK_1(TRACE_SMAPI,
344 "smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
345 bRC = smapi_request(0x1405, 0x0100, 0, usSI,
346 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
347 if (bRC) goto exit_smapi_request_error;
348 bRC = smapi_request(0x1404, 0x0000, 0, 0,
349 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
350 if (bRC) goto exit_smapi_request_error;
351 #else
352 goto exit_conflict;
353 #endif
354 } else {
355 if ((usSI >> 8) == uartio_index) {
356 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
357 PRINTK_ERROR(KERN_ERR_MWAVE
358 "smapi::smapi_set_DSP_cfg: Serial port B base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
359 #else
360 PRINTK_3(TRACE_SMAPI,
361 "smapi::smapi_set_DSP_cfg: Serial port B base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
362 #endif
363 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
364 PRINTK_1 (TRACE_SMAPI,
365 "smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
366 bRC = smapi_request (0x1405, 0x0100, 0, usSI,
367 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
368 if (bRC) goto exit_smapi_request_error;
369 bRC = smapi_request (0x1404, 0x0000, 0, 0,
370 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
371 if (bRC) goto exit_smapi_request_error;
372 #else
373 goto exit_conflict;
374 #endif
375 }
376 }
377 }
378 }
379
380 /* Check IR port */
381 bRC = smapi_request(0x1700, 0x0000, 0, 0,
382 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
383 if (bRC) goto exit_smapi_request_error;
384 bRC = smapi_request(0x1704, 0x0000, 0, 0,
385 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
386 if (bRC) goto exit_smapi_request_error;
387 /* bRC == 0 */
388 if ((usCX & 0xff) != 0xff) { /* IR port not disabled */
389 if ((usCX & 0xff) == mwave_uart_irq) {
390 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
391 PRINTK_ERROR(KERN_ERR_MWAVE
392 "smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
393 #else
394 PRINTK_3(TRACE_SMAPI,
395 "smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
396 #endif
397 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
398 PRINTK_1(TRACE_SMAPI,
399 "smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
400 bRC = smapi_request(0x1701, 0x0100, 0, 0,
401 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
402 if (bRC) goto exit_smapi_request_error;
403 bRC = smapi_request(0x1700, 0, 0, 0,
404 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
405 if (bRC) goto exit_smapi_request_error;
406 bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
407 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
408 if (bRC) goto exit_smapi_request_error;
409 bRC = smapi_request(0x1704, 0x0000, 0, 0,
410 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
411 if (bRC) goto exit_smapi_request_error;
412 #else
413 goto exit_conflict;
414 #endif
415 } else {
416 if ((usSI & 0xff) == uartio_index) {
417 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
418 PRINTK_ERROR(KERN_ERR_MWAVE
419 "smapi::smapi_set_DSP_cfg: IR port base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI & 0xff], ausUartBases[uartio_index]);
420 #else
421 PRINTK_3(TRACE_SMAPI,
422 "smapi::smapi_set_DSP_cfg: IR port base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI & 0xff], ausUartBases[uartio_index]);
423 #endif
424 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
425 PRINTK_1(TRACE_SMAPI,
426 "smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
427 bRC = smapi_request(0x1701, 0x0100, 0, 0,
428 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
429 if (bRC) goto exit_smapi_request_error;
430 bRC = smapi_request(0x1700, 0, 0, 0,
431 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
432 if (bRC) goto exit_smapi_request_error;
433 bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
434 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
435 if (bRC) goto exit_smapi_request_error;
436 bRC = smapi_request(0x1704, 0x0000, 0, 0,
437 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
438 if (bRC) goto exit_smapi_request_error;
439 #else
440 goto exit_conflict;
441 #endif
442 }
443 }
444 }
445 }
446
447 bRC = smapi_request(0x1802, 0x0000, 0, 0,
448 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
449 if (bRC) goto exit_smapi_request_error;
450
451 if (mwave_3780i_io) {
452 usDI = dspio_index;
453 }
454 if (mwave_3780i_irq) {
455 usSI = (usSI & 0xff00) | mwave_3780i_irq;
456 }
457
458 bRC = smapi_request(0x1803, 0x0101, usDI, usSI,
459 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
460 if (bRC) goto exit_smapi_request_error;
461
462 bRC = smapi_request(0x1804, 0x0000, 0, 0,
463 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
464 if (bRC) goto exit_smapi_request_error;
465
466 if (mwave_uart_io) {
467 usSI = (usSI & 0x00ff) | (uartio_index << 8);
468 }
469 if (mwave_uart_irq) {
470 usSI = (usSI & 0xff00) | mwave_uart_irq;
471 }
472 bRC = smapi_request(0x1805, 0x0101, 0, usSI,
473 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
474 if (bRC) goto exit_smapi_request_error;
475
476 bRC = smapi_request(0x1802, 0x0000, 0, 0,
477 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
478 if (bRC) goto exit_smapi_request_error;
479
480 bRC = smapi_request(0x1804, 0x0000, 0, 0,
481 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
482 if (bRC) goto exit_smapi_request_error;
483
484 /* normal exit: */
485 PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg exit\n");
486 return 0;
487
488 exit_conflict:
489 /* Message has already been printed */
490 return -EIO;
491
492 exit_smapi_request_error:
493 PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg exit on smapi_request error bRC %x\n", bRC);
494 return bRC;
495 }
496
497
smapi_set_DSP_power_state(bool bOn)498 int smapi_set_DSP_power_state(bool bOn)
499 {
500 int bRC = -EIO;
501 unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
502 unsigned short usPowerFunction;
503
504 PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state entry bOn %x\n", bOn);
505
506 usPowerFunction = (bOn) ? 1 : 0;
507
508 bRC = smapi_request(0x4901, 0x0000, 0, usPowerFunction,
509 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
510
511 PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state exit bRC %x\n", bRC);
512
513 return bRC;
514 }
515
516 #if 0
517 static int SmapiQuerySystemID(void)
518 {
519 int bRC = -EIO;
520 unsigned short usAX = 0xffff, usBX = 0xffff, usCX = 0xffff,
521 usDX = 0xffff, usDI = 0xffff, usSI = 0xffff;
522
523 printk("smapi::SmapiQUerySystemID entry\n");
524 bRC = smapi_request(0x0000, 0, 0, 0,
525 &usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
526
527 if (bRC == 0) {
528 printk("AX=%x, BX=%x, CX=%x, DX=%x, DI=%x, SI=%x\n",
529 usAX, usBX, usCX, usDX, usDI, usSI);
530 } else {
531 printk("smapi::SmapiQuerySystemID smapi_request error\n");
532 }
533
534 return bRC;
535 }
536 #endif /* 0 */
537
smapi_init(void)538 int smapi_init(void)
539 {
540 int retval = -EIO;
541 unsigned short usSmapiID = 0;
542 unsigned long flags;
543
544 PRINTK_1(TRACE_SMAPI, "smapi::smapi_init entry\n");
545
546 spin_lock_irqsave(&rtc_lock, flags);
547 usSmapiID = CMOS_READ(0x7C);
548 usSmapiID |= (CMOS_READ(0x7D) << 8);
549 spin_unlock_irqrestore(&rtc_lock, flags);
550 PRINTK_2(TRACE_SMAPI, "smapi::smapi_init usSmapiID %x\n", usSmapiID);
551
552 if (usSmapiID == 0x5349) {
553 spin_lock_irqsave(&rtc_lock, flags);
554 g_usSmapiPort = CMOS_READ(0x7E);
555 g_usSmapiPort |= (CMOS_READ(0x7F) << 8);
556 spin_unlock_irqrestore(&rtc_lock, flags);
557 if (g_usSmapiPort == 0) {
558 PRINTK_ERROR("smapi::smapi_init, ERROR unable to read from SMAPI port\n");
559 } else {
560 PRINTK_2(TRACE_SMAPI,
561 "smapi::smapi_init, exit true g_usSmapiPort %x\n",
562 g_usSmapiPort);
563 retval = 0;
564 //SmapiQuerySystemID();
565 }
566 } else {
567 PRINTK_ERROR("smapi::smapi_init, ERROR invalid usSmapiID\n");
568 retval = -ENXIO;
569 }
570
571 return retval;
572 }
573