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 	unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 };
132 	unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
133 	unsigned short numDspBases = 8;
134 	unsigned short numUartBases = 4;
135 
136 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg entry\n");
137 
138 	bRC = smapi_request(0x1802, 0x0000, 0, 0,
139 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
140 	if (bRC) {
141 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Error: Could not get DSP Settings. Aborting.\n");
142 		return bRC;
143 	}
144 
145 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");
146 
147 	pSettings->bDSPPresent = ((usBX & 0x0100) != 0);
148 	pSettings->bDSPEnabled = ((usCX & 0x0001) != 0);
149 	pSettings->usDspIRQ = usSI & 0x00FF;
150 	pSettings->usDspDMA = (usSI & 0xFF00) >> 8;
151 	if ((usDI & 0x00FF) < numDspBases) {
152 		pSettings->usDspBaseIO = ausDspBases[usDI & 0x00FF];
153 	} else {
154 		pSettings->usDspBaseIO = 0;
155 	}
156 	PRINTK_6(TRACE_SMAPI,
157 		"smapi::smapi_query_DSP_cfg get DSP Settings bDSPPresent %x bDSPEnabled %x usDspIRQ %x usDspDMA %x usDspBaseIO %x\n",
158 		pSettings->bDSPPresent, pSettings->bDSPEnabled,
159 		pSettings->usDspIRQ, pSettings->usDspDMA,
160 		pSettings->usDspBaseIO);
161 
162 	/* check for illegal values */
163 	if ( pSettings->usDspBaseIO == 0 )
164 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP base I/O address is 0\n");
165 	if ( pSettings->usDspIRQ == 0 )
166 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP IRQ line is 0\n");
167 
168 	bRC = smapi_request(0x1804, 0x0000, 0, 0,
169 	   	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
170 	if (bRC) {
171 		PRINTK_ERROR("smapi::smapi_query_DSP_cfg: Error: Could not get DSP modem settings. Aborting.\n");
172 		return bRC;
173 	}
174 
175 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");
176 
177 	pSettings->bModemEnabled = ((usCX & 0x0001) != 0);
178 	pSettings->usUartIRQ = usSI & 0x000F;
179 	if (((usSI & 0xFF00) >> 8) < numUartBases) {
180 		pSettings->usUartBaseIO = ausUartBases[(usSI & 0xFF00) >> 8];
181 	} else {
182 		pSettings->usUartBaseIO = 0;
183 	}
184 
185 	PRINTK_4(TRACE_SMAPI,
186 		"smapi::smapi_query_DSP_cfg get DSP modem settings bModemEnabled %x usUartIRQ %x usUartBaseIO %x\n",
187 		pSettings->bModemEnabled,
188 		pSettings->usUartIRQ,
189 		pSettings->usUartBaseIO);
190 
191 	/* check for illegal values */
192 	if ( pSettings->usUartBaseIO == 0 )
193 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART base I/O address is 0\n");
194 	if ( pSettings->usUartIRQ == 0 )
195 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART IRQ line is 0\n");
196 
197 	PRINTK_2(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg exit bRC %x\n", bRC);
198 
199 	return bRC;
200 }
201 
202 
smapi_set_DSP_cfg(void)203 int smapi_set_DSP_cfg(void)
204 {
205 	int bRC = -EIO;
206 	int i;
207 	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
208 	unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 };
209 	unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
210 	unsigned short ausDspIrqs[] = { 5, 7, 10, 11, 15 };
211 	unsigned short ausUartIrqs[] = { 3, 4 };
212 
213 	unsigned short numDspBases = 8;
214 	unsigned short numUartBases = 4;
215 	unsigned short numDspIrqs = 5;
216 	unsigned short numUartIrqs = 2;
217 	unsigned short dspio_index = 0, uartio_index = 0;
218 
219 	PRINTK_5(TRACE_SMAPI,
220 		"smapi::smapi_set_DSP_cfg entry mwave_3780i_irq %x mwave_3780i_io %x mwave_uart_irq %x mwave_uart_io %x\n",
221 		mwave_3780i_irq, mwave_3780i_io, mwave_uart_irq, mwave_uart_io);
222 
223 	if (mwave_3780i_io) {
224 		for (i = 0; i < numDspBases; i++) {
225 			if (mwave_3780i_io == ausDspBases[i])
226 				break;
227 		}
228 		if (i == numDspBases) {
229 			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_io address %x. Aborting.\n", mwave_3780i_io);
230 			return bRC;
231 		}
232 		dspio_index = i;
233 	}
234 
235 	if (mwave_3780i_irq) {
236 		for (i = 0; i < numDspIrqs; i++) {
237 			if (mwave_3780i_irq == ausDspIrqs[i])
238 				break;
239 		}
240 		if (i == numDspIrqs) {
241 			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_irq %x. Aborting.\n", mwave_3780i_irq);
242 			return bRC;
243 		}
244 	}
245 
246 	if (mwave_uart_io) {
247 		for (i = 0; i < numUartBases; i++) {
248 			if (mwave_uart_io == ausUartBases[i])
249 				break;
250 		}
251 		if (i == numUartBases) {
252 			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_io address %x. Aborting.\n", mwave_uart_io);
253 			return bRC;
254 		}
255 		uartio_index = i;
256 	}
257 
258 
259 	if (mwave_uart_irq) {
260 		for (i = 0; i < numUartIrqs; i++) {
261 			if (mwave_uart_irq == ausUartIrqs[i])
262 				break;
263 		}
264 		if (i == numUartIrqs) {
265 			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_irq %x. Aborting.\n", mwave_uart_irq);
266 			return bRC;
267 		}
268 	}
269 
270 	if (mwave_uart_irq || mwave_uart_io) {
271 
272 		/* Check serial port A */
273 		bRC = smapi_request(0x1402, 0x0000, 0, 0,
274 			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
275 		if (bRC) goto exit_smapi_request_error;
276 		/* bRC == 0 */
277 		if (usBX & 0x0100) {	/* serial port A is present */
278 			if (usCX & 1) {	/* serial port is enabled */
279 				if ((usSI & 0xFF) == mwave_uart_irq) {
280 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
281 					PRINTK_ERROR(KERN_ERR_MWAVE
282 						"smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
283 #else
284 					PRINTK_3(TRACE_SMAPI,
285 						"smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
286 #endif
287 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
288 					PRINTK_1(TRACE_SMAPI,
289 						"smapi::smapi_set_DSP_cfg Disabling conflicting serial port\n");
290 					bRC = smapi_request(0x1403, 0x0100, 0, usSI,
291 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
292 					if (bRC) goto exit_smapi_request_error;
293 					bRC = smapi_request(0x1402, 0x0000, 0, 0,
294 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
295 					if (bRC) goto exit_smapi_request_error;
296 #else
297 					goto exit_conflict;
298 #endif
299 				} else {
300 					if ((usSI >> 8) == uartio_index) {
301 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
302 						PRINTK_ERROR(KERN_ERR_MWAVE
303 							"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]);
304 #else
305 						PRINTK_3(TRACE_SMAPI,
306 							"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]);
307 #endif
308 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
309 						PRINTK_1(TRACE_SMAPI,
310 							"smapi::smapi_set_DSP_cfg Disabling conflicting serial port A\n");
311 						bRC = smapi_request (0x1403, 0x0100, 0, usSI,
312 							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
313 						if (bRC) goto exit_smapi_request_error;
314 						bRC = smapi_request (0x1402, 0x0000, 0, 0,
315 							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
316 						if (bRC) goto exit_smapi_request_error;
317 #else
318 						goto exit_conflict;
319 #endif
320 					}
321 				}
322 			}
323 		}
324 
325 		/* Check serial port B */
326 		bRC = smapi_request(0x1404, 0x0000, 0, 0,
327 			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
328 		if (bRC) goto exit_smapi_request_error;
329 		/* bRC == 0 */
330 		if (usBX & 0x0100) {	/* serial port B is present */
331 			if (usCX & 1) {	/* serial port is enabled */
332 				if ((usSI & 0xFF) == mwave_uart_irq) {
333 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
334 					PRINTK_ERROR(KERN_ERR_MWAVE
335 						"smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
336 #else
337 					PRINTK_3(TRACE_SMAPI,
338 						"smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
339 #endif
340 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
341 					PRINTK_1(TRACE_SMAPI,
342 						"smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
343 					bRC = smapi_request(0x1405, 0x0100, 0, usSI,
344 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
345 					if (bRC) goto exit_smapi_request_error;
346 					bRC = smapi_request(0x1404, 0x0000, 0, 0,
347 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
348 					if (bRC) goto exit_smapi_request_error;
349 #else
350 					goto exit_conflict;
351 #endif
352 				} else {
353 					if ((usSI >> 8) == uartio_index) {
354 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
355 						PRINTK_ERROR(KERN_ERR_MWAVE
356 							"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]);
357 #else
358 						PRINTK_3(TRACE_SMAPI,
359 							"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]);
360 #endif
361 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
362 						PRINTK_1 (TRACE_SMAPI,
363 						    "smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
364 						bRC = smapi_request (0x1405, 0x0100, 0, usSI,
365 							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
366 						if (bRC) goto exit_smapi_request_error;
367 						bRC = smapi_request (0x1404, 0x0000, 0, 0,
368 							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
369 						if (bRC) goto exit_smapi_request_error;
370 #else
371 						goto exit_conflict;
372 #endif
373 					}
374 				}
375 			}
376 		}
377 
378 		/* Check IR port */
379 		bRC = smapi_request(0x1700, 0x0000, 0, 0,
380 			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
381 		if (bRC) goto exit_smapi_request_error;
382 		bRC = smapi_request(0x1704, 0x0000, 0, 0,
383 			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
384 		if (bRC) goto exit_smapi_request_error;
385 		/* bRC == 0 */
386 		if ((usCX & 0xff) != 0xff) { /* IR port not disabled */
387 			if ((usCX & 0xff) == mwave_uart_irq) {
388 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
389 				PRINTK_ERROR(KERN_ERR_MWAVE
390 					"smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
391 #else
392 				PRINTK_3(TRACE_SMAPI,
393 					"smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
394 #endif
395 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
396 				PRINTK_1(TRACE_SMAPI,
397 					"smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
398 				bRC = smapi_request(0x1701, 0x0100, 0, 0,
399 					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
400 				if (bRC) goto exit_smapi_request_error;
401 				bRC = smapi_request(0x1700, 0, 0, 0,
402 					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
403 				if (bRC) goto exit_smapi_request_error;
404 				bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
405 					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
406 				if (bRC) goto exit_smapi_request_error;
407 				bRC = smapi_request(0x1704, 0x0000, 0, 0,
408 					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
409 				if (bRC) goto exit_smapi_request_error;
410 #else
411 				goto exit_conflict;
412 #endif
413 			} else {
414 				if ((usSI & 0xff) == uartio_index) {
415 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
416 					PRINTK_ERROR(KERN_ERR_MWAVE
417 						"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]);
418 #else
419 					PRINTK_3(TRACE_SMAPI,
420 						"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]);
421 #endif
422 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
423 					PRINTK_1(TRACE_SMAPI,
424 						"smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
425 					bRC = smapi_request(0x1701, 0x0100, 0, 0,
426 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
427 					if (bRC) goto exit_smapi_request_error;
428 					bRC = smapi_request(0x1700, 0, 0, 0,
429 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
430 					if (bRC) goto exit_smapi_request_error;
431 					bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
432 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
433 					if (bRC) goto exit_smapi_request_error;
434 					bRC = smapi_request(0x1704, 0x0000, 0, 0,
435 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
436 					if (bRC) goto exit_smapi_request_error;
437 #else
438 					goto exit_conflict;
439 #endif
440 				}
441 			}
442 		}
443 	}
444 
445 	bRC = smapi_request(0x1802, 0x0000, 0, 0,
446 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
447 	if (bRC) goto exit_smapi_request_error;
448 
449 	if (mwave_3780i_io) {
450 		usDI = dspio_index;
451 	}
452 	if (mwave_3780i_irq) {
453 		usSI = (usSI & 0xff00) | mwave_3780i_irq;
454 	}
455 
456 	bRC = smapi_request(0x1803, 0x0101, usDI, usSI,
457 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
458 	if (bRC) goto exit_smapi_request_error;
459 
460 	bRC = smapi_request(0x1804, 0x0000, 0, 0,
461 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
462 	if (bRC) goto exit_smapi_request_error;
463 
464 	if (mwave_uart_io) {
465 		usSI = (usSI & 0x00ff) | (uartio_index << 8);
466 	}
467 	if (mwave_uart_irq) {
468 		usSI = (usSI & 0xff00) | mwave_uart_irq;
469 	}
470 	bRC = smapi_request(0x1805, 0x0101, 0, usSI,
471 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
472 	if (bRC) goto exit_smapi_request_error;
473 
474 	bRC = smapi_request(0x1802, 0x0000, 0, 0,
475 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
476 	if (bRC) goto exit_smapi_request_error;
477 
478 	bRC = smapi_request(0x1804, 0x0000, 0, 0,
479 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
480 	if (bRC) goto exit_smapi_request_error;
481 
482 /* normal exit: */
483 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg exit\n");
484 	return 0;
485 
486 exit_conflict:
487 	/* Message has already been printed */
488 	return -EIO;
489 
490 exit_smapi_request_error:
491 	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg exit on smapi_request error bRC %x\n", bRC);
492 	return bRC;
493 }
494 
495 
smapi_set_DSP_power_state(BOOLEAN bOn)496 int smapi_set_DSP_power_state(BOOLEAN bOn)
497 {
498 	int bRC = -EIO;
499 	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
500 	unsigned short usPowerFunction;
501 
502 	PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state entry bOn %x\n", bOn);
503 
504 	usPowerFunction = (bOn) ? 1 : 0;
505 
506 	bRC = smapi_request(0x4901, 0x0000, 0, usPowerFunction,
507 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
508 
509 	PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state exit bRC %x\n", bRC);
510 
511 	return bRC;
512 }
513 
514 #if 0
515 static int SmapiQuerySystemID(void)
516 {
517 	int bRC = -EIO;
518 	unsigned short usAX = 0xffff, usBX = 0xffff, usCX = 0xffff,
519 		usDX = 0xffff, usDI = 0xffff, usSI = 0xffff;
520 
521 	printk("smapi::SmapiQUerySystemID entry\n");
522 	bRC = smapi_request(0x0000, 0, 0, 0,
523 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
524 
525 	if (bRC == 0) {
526 		printk("AX=%x, BX=%x, CX=%x, DX=%x, DI=%x, SI=%x\n",
527 			usAX, usBX, usCX, usDX, usDI, usSI);
528 	} else {
529 		printk("smapi::SmapiQuerySystemID smapi_request error\n");
530 	}
531 
532 	return bRC;
533 }
534 #endif  /*  0  */
535 
smapi_init(void)536 int smapi_init(void)
537 {
538 	int retval = -EIO;
539 	unsigned short usSmapiID = 0;
540 	unsigned long flags;
541 
542 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_init entry\n");
543 
544 	spin_lock_irqsave(&rtc_lock, flags);
545 	usSmapiID = CMOS_READ(0x7C);
546 	usSmapiID |= (CMOS_READ(0x7D) << 8);
547 	spin_unlock_irqrestore(&rtc_lock, flags);
548 	PRINTK_2(TRACE_SMAPI, "smapi::smapi_init usSmapiID %x\n", usSmapiID);
549 
550 	if (usSmapiID == 0x5349) {
551 		spin_lock_irqsave(&rtc_lock, flags);
552 		g_usSmapiPort = CMOS_READ(0x7E);
553 		g_usSmapiPort |= (CMOS_READ(0x7F) << 8);
554 		spin_unlock_irqrestore(&rtc_lock, flags);
555 		if (g_usSmapiPort == 0) {
556 			PRINTK_ERROR("smapi::smapi_init, ERROR unable to read from SMAPI port\n");
557 		} else {
558 			PRINTK_2(TRACE_SMAPI,
559 				"smapi::smapi_init, exit TRUE g_usSmapiPort %x\n",
560 				g_usSmapiPort);
561 			retval = 0;
562 			//SmapiQuerySystemID();
563 		}
564 	} else {
565 		PRINTK_ERROR("smapi::smapi_init, ERROR invalid usSmapiID\n");
566 		retval = -ENXIO;
567 	}
568 
569 	return retval;
570 }
571