1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Driver for Digigram pcxhr compatible soundcards |
4 | * |
5 | * low level interface with interrupt and message handling implementation |
6 | * |
7 | * Copyright (c) 2004 by Digigram <alsa@digigram.com> |
8 | */ |
9 | |
10 | #include <linux/delay.h> |
11 | #include <linux/firmware.h> |
12 | #include <linux/interrupt.h> |
13 | #include <linux/pci.h> |
14 | #include <linux/io.h> |
15 | #include <sound/core.h> |
16 | #include "pcxhr.h" |
17 | #include "pcxhr_mixer.h" |
18 | #include "pcxhr_hwdep.h" |
19 | #include "pcxhr_core.h" |
20 | |
21 | |
22 | /* registers used on the PLX (port 1) */ |
23 | #define PCXHR_PLX_OFFSET_MIN 0x40 |
24 | #define PCXHR_PLX_MBOX0 0x40 |
25 | #define PCXHR_PLX_MBOX1 0x44 |
26 | #define PCXHR_PLX_MBOX2 0x48 |
27 | #define PCXHR_PLX_MBOX3 0x4C |
28 | #define PCXHR_PLX_MBOX4 0x50 |
29 | #define PCXHR_PLX_MBOX5 0x54 |
30 | #define PCXHR_PLX_MBOX6 0x58 |
31 | #define PCXHR_PLX_MBOX7 0x5C |
32 | #define PCXHR_PLX_L2PCIDB 0x64 |
33 | #define PCXHR_PLX_IRQCS 0x68 |
34 | #define PCXHR_PLX_CHIPSC 0x6C |
35 | |
36 | /* registers used on the DSP (port 2) */ |
37 | #define PCXHR_DSP_ICR 0x00 |
38 | #define PCXHR_DSP_CVR 0x04 |
39 | #define PCXHR_DSP_ISR 0x08 |
40 | #define PCXHR_DSP_IVR 0x0C |
41 | #define PCXHR_DSP_RXH 0x14 |
42 | #define PCXHR_DSP_TXH 0x14 |
43 | #define PCXHR_DSP_RXM 0x18 |
44 | #define PCXHR_DSP_TXM 0x18 |
45 | #define PCXHR_DSP_RXL 0x1C |
46 | #define PCXHR_DSP_TXL 0x1C |
47 | #define PCXHR_DSP_RESET 0x20 |
48 | #define PCXHR_DSP_OFFSET_MAX 0x20 |
49 | |
50 | /* access to the card */ |
51 | #define PCXHR_PLX 1 |
52 | #define PCXHR_DSP 2 |
53 | |
54 | #if (PCXHR_DSP_OFFSET_MAX > PCXHR_PLX_OFFSET_MIN) |
55 | #error PCXHR_REG_TO_PORT(x) |
56 | #else |
57 | #define PCXHR_REG_TO_PORT(x) ((x)>PCXHR_DSP_OFFSET_MAX ? PCXHR_PLX : PCXHR_DSP) |
58 | #endif |
59 | #define PCXHR_INPB(mgr,x) inb((mgr)->port[PCXHR_REG_TO_PORT(x)] + (x)) |
60 | #define PCXHR_INPL(mgr,x) inl((mgr)->port[PCXHR_REG_TO_PORT(x)] + (x)) |
61 | #define PCXHR_OUTPB(mgr,x,data) outb((data), (mgr)->port[PCXHR_REG_TO_PORT(x)] + (x)) |
62 | #define PCXHR_OUTPL(mgr,x,data) outl((data), (mgr)->port[PCXHR_REG_TO_PORT(x)] + (x)) |
63 | /* attention : access the PCXHR_DSP_* registers with inb and outb only ! */ |
64 | |
65 | /* params used with PCXHR_PLX_MBOX0 */ |
66 | #define PCXHR_MBOX0_HF5 (1 << 0) |
67 | #define PCXHR_MBOX0_HF4 (1 << 1) |
68 | #define PCXHR_MBOX0_BOOT_HERE (1 << 23) |
69 | /* params used with PCXHR_PLX_IRQCS */ |
70 | #define PCXHR_IRQCS_ENABLE_PCIIRQ (1 << 8) |
71 | #define PCXHR_IRQCS_ENABLE_PCIDB (1 << 9) |
72 | #define PCXHR_IRQCS_ACTIVE_PCIDB (1 << 13) |
73 | /* params used with PCXHR_PLX_CHIPSC */ |
74 | #define PCXHR_CHIPSC_INIT_VALUE 0x100D767E |
75 | #define PCXHR_CHIPSC_RESET_XILINX (1 << 16) |
76 | #define PCXHR_CHIPSC_GPI_USERI (1 << 17) |
77 | #define PCXHR_CHIPSC_DATA_CLK (1 << 24) |
78 | #define PCXHR_CHIPSC_DATA_IN (1 << 26) |
79 | |
80 | /* params used with PCXHR_DSP_ICR */ |
81 | #define PCXHR_ICR_HI08_RREQ 0x01 |
82 | #define PCXHR_ICR_HI08_TREQ 0x02 |
83 | #define PCXHR_ICR_HI08_HDRQ 0x04 |
84 | #define PCXHR_ICR_HI08_HF0 0x08 |
85 | #define PCXHR_ICR_HI08_HF1 0x10 |
86 | #define PCXHR_ICR_HI08_HLEND 0x20 |
87 | #define PCXHR_ICR_HI08_INIT 0x80 |
88 | /* params used with PCXHR_DSP_CVR */ |
89 | #define PCXHR_CVR_HI08_HC 0x80 |
90 | /* params used with PCXHR_DSP_ISR */ |
91 | #define PCXHR_ISR_HI08_RXDF 0x01 |
92 | #define PCXHR_ISR_HI08_TXDE 0x02 |
93 | #define PCXHR_ISR_HI08_TRDY 0x04 |
94 | #define PCXHR_ISR_HI08_ERR 0x08 |
95 | #define PCXHR_ISR_HI08_CHK 0x10 |
96 | #define PCXHR_ISR_HI08_HREQ 0x80 |
97 | |
98 | |
99 | /* constants used for delay in msec */ |
100 | #define PCXHR_WAIT_DEFAULT 2 |
101 | #define PCXHR_WAIT_IT 25 |
102 | #define 65 |
103 | |
104 | /* |
105 | * pcxhr_check_reg_bit - wait for the specified bit is set/reset on a register |
106 | * @reg: register to check |
107 | * @mask: bit mask |
108 | * @bit: resultant bit to be checked |
109 | * @time: time-out of loop in msec |
110 | * |
111 | * returns zero if a bit matches, or a negative error code. |
112 | */ |
113 | static int pcxhr_check_reg_bit(struct pcxhr_mgr *mgr, unsigned int reg, |
114 | unsigned char mask, unsigned char bit, int time, |
115 | unsigned char* read) |
116 | { |
117 | int i = 0; |
118 | unsigned long end_time = jiffies + (time * HZ + 999) / 1000; |
119 | do { |
120 | *read = PCXHR_INPB(mgr, reg); |
121 | if ((*read & mask) == bit) { |
122 | if (i > 100) |
123 | dev_dbg(&mgr->pci->dev, |
124 | "ATTENTION! check_reg(%x) loopcount=%d\n" , |
125 | reg, i); |
126 | return 0; |
127 | } |
128 | i++; |
129 | } while (time_after_eq(end_time, jiffies)); |
130 | dev_err(&mgr->pci->dev, |
131 | "pcxhr_check_reg_bit: timeout, reg=%x, mask=0x%x, val=%x\n" , |
132 | reg, mask, *read); |
133 | return -EIO; |
134 | } |
135 | |
136 | /* constants used with pcxhr_check_reg_bit() */ |
137 | #define PCXHR_TIMEOUT_DSP 200 |
138 | |
139 | |
140 | #define 0x0000FE |
141 | #define PCXHR_MASK_IT_HF0 0x000100 |
142 | #define PCXHR_MASK_IT_HF1 0x000200 |
143 | #define PCXHR_MASK_IT_NO_HF0_HF1 0x000400 |
144 | #define PCXHR_MASK_IT_MANAGE_HF5 0x000800 |
145 | #define PCXHR_MASK_IT_WAIT 0x010000 |
146 | #define 0x020000 |
147 | |
148 | #define PCXHR_IT_SEND_BYTE_XILINX (0x0000003C | PCXHR_MASK_IT_HF0) |
149 | #define PCXHR_IT_TEST_XILINX (0x0000003C | PCXHR_MASK_IT_HF1 | \ |
150 | PCXHR_MASK_IT_MANAGE_HF5) |
151 | #define PCXHR_IT_DOWNLOAD_BOOT (0x0000000C | PCXHR_MASK_IT_HF1 | \ |
152 | PCXHR_MASK_IT_MANAGE_HF5 | \ |
153 | PCXHR_MASK_IT_WAIT) |
154 | #define PCXHR_IT_RESET_BOARD_FUNC (0x0000000C | PCXHR_MASK_IT_HF0 | \ |
155 | PCXHR_MASK_IT_MANAGE_HF5 | \ |
156 | PCXHR_MASK_IT_WAIT_EXTRA) |
157 | #define PCXHR_IT_DOWNLOAD_DSP (0x0000000C | \ |
158 | PCXHR_MASK_IT_MANAGE_HF5 | \ |
159 | PCXHR_MASK_IT_WAIT) |
160 | #define PCXHR_IT_DEBUG (0x0000005A | PCXHR_MASK_IT_NO_HF0_HF1) |
161 | #define PCXHR_IT_RESET_SEMAPHORE (0x0000005C | PCXHR_MASK_IT_NO_HF0_HF1) |
162 | #define PCXHR_IT_MESSAGE (0x00000074 | PCXHR_MASK_IT_NO_HF0_HF1) |
163 | #define PCXHR_IT_RESET_CHK (0x00000076 | PCXHR_MASK_IT_NO_HF0_HF1) |
164 | #define PCXHR_IT_UPDATE_RBUFFER (0x00000078 | PCXHR_MASK_IT_NO_HF0_HF1) |
165 | |
166 | static int pcxhr_send_it_dsp(struct pcxhr_mgr *mgr, |
167 | unsigned int itdsp, int atomic) |
168 | { |
169 | int err; |
170 | unsigned char reg; |
171 | |
172 | if (itdsp & PCXHR_MASK_IT_MANAGE_HF5) { |
173 | /* clear hf5 bit */ |
174 | PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX0, |
175 | PCXHR_INPL(mgr, PCXHR_PLX_MBOX0) & |
176 | ~PCXHR_MBOX0_HF5); |
177 | } |
178 | if ((itdsp & PCXHR_MASK_IT_NO_HF0_HF1) == 0) { |
179 | reg = (PCXHR_ICR_HI08_RREQ | |
180 | PCXHR_ICR_HI08_TREQ | |
181 | PCXHR_ICR_HI08_HDRQ); |
182 | if (itdsp & PCXHR_MASK_IT_HF0) |
183 | reg |= PCXHR_ICR_HI08_HF0; |
184 | if (itdsp & PCXHR_MASK_IT_HF1) |
185 | reg |= PCXHR_ICR_HI08_HF1; |
186 | PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg); |
187 | } |
188 | reg = (unsigned char)(((itdsp & PCXHR_MASK_EXTRA_INFO) >> 1) | |
189 | PCXHR_CVR_HI08_HC); |
190 | PCXHR_OUTPB(mgr, PCXHR_DSP_CVR, reg); |
191 | if (itdsp & PCXHR_MASK_IT_WAIT) { |
192 | if (atomic) |
193 | mdelay(PCXHR_WAIT_IT); |
194 | else |
195 | msleep(PCXHR_WAIT_IT); |
196 | } |
197 | if (itdsp & PCXHR_MASK_IT_WAIT_EXTRA) { |
198 | if (atomic) |
199 | mdelay(PCXHR_WAIT_IT_EXTRA); |
200 | else |
201 | msleep(PCXHR_WAIT_IT); |
202 | } |
203 | /* wait for CVR_HI08_HC == 0 */ |
204 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_CVR, PCXHR_CVR_HI08_HC, bit: 0, |
205 | PCXHR_TIMEOUT_DSP, read: ®); |
206 | if (err) { |
207 | dev_err(&mgr->pci->dev, "pcxhr_send_it_dsp : TIMEOUT CVR\n" ); |
208 | return err; |
209 | } |
210 | if (itdsp & PCXHR_MASK_IT_MANAGE_HF5) { |
211 | /* wait for hf5 bit */ |
212 | err = pcxhr_check_reg_bit(mgr, PCXHR_PLX_MBOX0, |
213 | PCXHR_MBOX0_HF5, |
214 | PCXHR_MBOX0_HF5, |
215 | PCXHR_TIMEOUT_DSP, |
216 | read: ®); |
217 | if (err) { |
218 | dev_err(&mgr->pci->dev, |
219 | "pcxhr_send_it_dsp : TIMEOUT HF5\n" ); |
220 | return err; |
221 | } |
222 | } |
223 | return 0; /* retry not handled here */ |
224 | } |
225 | |
226 | void pcxhr_reset_xilinx_com(struct pcxhr_mgr *mgr) |
227 | { |
228 | /* reset second xilinx */ |
229 | PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, |
230 | PCXHR_CHIPSC_INIT_VALUE & ~PCXHR_CHIPSC_RESET_XILINX); |
231 | } |
232 | |
233 | static void pcxhr_enable_irq(struct pcxhr_mgr *mgr, int enable) |
234 | { |
235 | unsigned int reg = PCXHR_INPL(mgr, PCXHR_PLX_IRQCS); |
236 | /* enable/disable interrupts */ |
237 | if (enable) |
238 | reg |= (PCXHR_IRQCS_ENABLE_PCIIRQ | PCXHR_IRQCS_ENABLE_PCIDB); |
239 | else |
240 | reg &= ~(PCXHR_IRQCS_ENABLE_PCIIRQ | PCXHR_IRQCS_ENABLE_PCIDB); |
241 | PCXHR_OUTPL(mgr, PCXHR_PLX_IRQCS, reg); |
242 | } |
243 | |
244 | void pcxhr_reset_dsp(struct pcxhr_mgr *mgr) |
245 | { |
246 | /* disable interrupts */ |
247 | pcxhr_enable_irq(mgr, enable: 0); |
248 | |
249 | /* let's reset the DSP */ |
250 | PCXHR_OUTPB(mgr, PCXHR_DSP_RESET, 0); |
251 | msleep( PCXHR_WAIT_DEFAULT ); /* wait 2 msec */ |
252 | PCXHR_OUTPB(mgr, PCXHR_DSP_RESET, 3); |
253 | msleep( PCXHR_WAIT_DEFAULT ); /* wait 2 msec */ |
254 | |
255 | /* reset mailbox */ |
256 | PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX0, 0); |
257 | } |
258 | |
259 | void pcxhr_enable_dsp(struct pcxhr_mgr *mgr) |
260 | { |
261 | /* enable interrupts */ |
262 | pcxhr_enable_irq(mgr, enable: 1); |
263 | } |
264 | |
265 | /* |
266 | * load the xilinx image |
267 | */ |
268 | int pcxhr_load_xilinx_binary(struct pcxhr_mgr *mgr, |
269 | const struct firmware *xilinx, int second) |
270 | { |
271 | unsigned int i; |
272 | unsigned int chipsc; |
273 | unsigned char data; |
274 | unsigned char mask; |
275 | const unsigned char *image; |
276 | |
277 | /* test first xilinx */ |
278 | chipsc = PCXHR_INPL(mgr, PCXHR_PLX_CHIPSC); |
279 | /* REV01 cards do not support the PCXHR_CHIPSC_GPI_USERI bit anymore */ |
280 | /* this bit will always be 1; |
281 | * no possibility to test presence of first xilinx |
282 | */ |
283 | if(second) { |
284 | if ((chipsc & PCXHR_CHIPSC_GPI_USERI) == 0) { |
285 | dev_err(&mgr->pci->dev, "error loading first xilinx\n" ); |
286 | return -EINVAL; |
287 | } |
288 | /* activate second xilinx */ |
289 | chipsc |= PCXHR_CHIPSC_RESET_XILINX; |
290 | PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc); |
291 | msleep( PCXHR_WAIT_DEFAULT ); /* wait 2 msec */ |
292 | } |
293 | image = xilinx->data; |
294 | for (i = 0; i < xilinx->size; i++, image++) { |
295 | data = *image; |
296 | mask = 0x80; |
297 | while (mask) { |
298 | chipsc &= ~(PCXHR_CHIPSC_DATA_CLK | |
299 | PCXHR_CHIPSC_DATA_IN); |
300 | if (data & mask) |
301 | chipsc |= PCXHR_CHIPSC_DATA_IN; |
302 | PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc); |
303 | chipsc |= PCXHR_CHIPSC_DATA_CLK; |
304 | PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc); |
305 | mask >>= 1; |
306 | } |
307 | /* don't take too much time in this loop... */ |
308 | cond_resched(); |
309 | } |
310 | chipsc &= ~(PCXHR_CHIPSC_DATA_CLK | PCXHR_CHIPSC_DATA_IN); |
311 | PCXHR_OUTPL(mgr, PCXHR_PLX_CHIPSC, chipsc); |
312 | /* wait 2 msec (time to boot the xilinx before any access) */ |
313 | msleep( PCXHR_WAIT_DEFAULT ); |
314 | return 0; |
315 | } |
316 | |
317 | /* |
318 | * send an executable file to the DSP |
319 | */ |
320 | static int pcxhr_download_dsp(struct pcxhr_mgr *mgr, const struct firmware *dsp) |
321 | { |
322 | int err; |
323 | unsigned int i; |
324 | unsigned int len; |
325 | const unsigned char *data; |
326 | unsigned char dummy; |
327 | /* check the length of boot image */ |
328 | if (dsp->size <= 0) |
329 | return -EINVAL; |
330 | if (dsp->size % 3) |
331 | return -EINVAL; |
332 | if (snd_BUG_ON(!dsp->data)) |
333 | return -EINVAL; |
334 | /* transfert data buffer from PC to DSP */ |
335 | for (i = 0; i < dsp->size; i += 3) { |
336 | data = dsp->data + i; |
337 | if (i == 0) { |
338 | /* test data header consistency */ |
339 | len = (unsigned int)((data[0]<<16) + |
340 | (data[1]<<8) + |
341 | data[2]); |
342 | if (len && (dsp->size != (len + 2) * 3)) |
343 | return -EINVAL; |
344 | } |
345 | /* wait DSP ready for new transfer */ |
346 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, |
347 | PCXHR_ISR_HI08_TRDY, |
348 | PCXHR_ISR_HI08_TRDY, |
349 | PCXHR_TIMEOUT_DSP, read: &dummy); |
350 | if (err) { |
351 | dev_err(&mgr->pci->dev, |
352 | "dsp loading error at position %d\n" , i); |
353 | return err; |
354 | } |
355 | /* send host data */ |
356 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, data[0]); |
357 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, data[1]); |
358 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, data[2]); |
359 | |
360 | /* don't take too much time in this loop... */ |
361 | cond_resched(); |
362 | } |
363 | /* give some time to boot the DSP */ |
364 | msleep(PCXHR_WAIT_DEFAULT); |
365 | return 0; |
366 | } |
367 | |
368 | /* |
369 | * load the eeprom image |
370 | */ |
371 | int pcxhr_load_eeprom_binary(struct pcxhr_mgr *mgr, |
372 | const struct firmware *eeprom) |
373 | { |
374 | int err; |
375 | unsigned char reg; |
376 | |
377 | /* init value of the ICR register */ |
378 | reg = PCXHR_ICR_HI08_RREQ | PCXHR_ICR_HI08_TREQ | PCXHR_ICR_HI08_HDRQ; |
379 | if (PCXHR_INPL(mgr, PCXHR_PLX_MBOX0) & PCXHR_MBOX0_BOOT_HERE) { |
380 | /* no need to load the eeprom binary, |
381 | * but init the HI08 interface |
382 | */ |
383 | PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg | PCXHR_ICR_HI08_INIT); |
384 | msleep(PCXHR_WAIT_DEFAULT); |
385 | PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg); |
386 | msleep(PCXHR_WAIT_DEFAULT); |
387 | dev_dbg(&mgr->pci->dev, "no need to load eeprom boot\n" ); |
388 | return 0; |
389 | } |
390 | PCXHR_OUTPB(mgr, PCXHR_DSP_ICR, reg); |
391 | |
392 | err = pcxhr_download_dsp(mgr, dsp: eeprom); |
393 | if (err) |
394 | return err; |
395 | /* wait for chk bit */ |
396 | return pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK, |
397 | PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, read: ®); |
398 | } |
399 | |
400 | /* |
401 | * load the boot image |
402 | */ |
403 | int pcxhr_load_boot_binary(struct pcxhr_mgr *mgr, const struct firmware *boot) |
404 | { |
405 | int err; |
406 | unsigned int physaddr = mgr->hostport.addr; |
407 | unsigned char dummy; |
408 | |
409 | /* send the hostport address to the DSP (only the upper 24 bit !) */ |
410 | if (snd_BUG_ON(physaddr & 0xff)) |
411 | return -EINVAL; |
412 | PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX1, (physaddr >> 8)); |
413 | |
414 | err = pcxhr_send_it_dsp(mgr, PCXHR_IT_DOWNLOAD_BOOT, atomic: 0); |
415 | if (err) |
416 | return err; |
417 | /* clear hf5 bit */ |
418 | PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX0, |
419 | PCXHR_INPL(mgr, PCXHR_PLX_MBOX0) & ~PCXHR_MBOX0_HF5); |
420 | |
421 | err = pcxhr_download_dsp(mgr, dsp: boot); |
422 | if (err) |
423 | return err; |
424 | /* wait for hf5 bit */ |
425 | return pcxhr_check_reg_bit(mgr, PCXHR_PLX_MBOX0, PCXHR_MBOX0_HF5, |
426 | PCXHR_MBOX0_HF5, PCXHR_TIMEOUT_DSP, read: &dummy); |
427 | } |
428 | |
429 | /* |
430 | * load the final dsp image |
431 | */ |
432 | int pcxhr_load_dsp_binary(struct pcxhr_mgr *mgr, const struct firmware *dsp) |
433 | { |
434 | int err; |
435 | unsigned char dummy; |
436 | err = pcxhr_send_it_dsp(mgr, PCXHR_IT_RESET_BOARD_FUNC, atomic: 0); |
437 | if (err) |
438 | return err; |
439 | err = pcxhr_send_it_dsp(mgr, PCXHR_IT_DOWNLOAD_DSP, atomic: 0); |
440 | if (err) |
441 | return err; |
442 | err = pcxhr_download_dsp(mgr, dsp); |
443 | if (err) |
444 | return err; |
445 | /* wait for chk bit */ |
446 | return pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, |
447 | PCXHR_ISR_HI08_CHK, |
448 | PCXHR_ISR_HI08_CHK, |
449 | PCXHR_TIMEOUT_DSP, read: &dummy); |
450 | } |
451 | |
452 | |
453 | struct pcxhr_cmd_info { |
454 | u32 opcode; /* command word */ |
455 | u16 st_length; /* status length */ |
456 | u16 st_type; /* status type (RMH_SSIZE_XXX) */ |
457 | }; |
458 | |
459 | /* RMH status type */ |
460 | enum { |
461 | RMH_SSIZE_FIXED = 0, /* status size fix (st_length = 0..x) */ |
462 | RMH_SSIZE_ARG = 1, /* status size given in the LSB byte */ |
463 | RMH_SSIZE_MASK = 2, /* status size given in bitmask */ |
464 | }; |
465 | |
466 | /* |
467 | * Array of DSP commands |
468 | */ |
469 | static const struct pcxhr_cmd_info pcxhr_dsp_cmds[] = { |
470 | [CMD_VERSION] = { .opcode: 0x010000, .st_length: 1, .st_type: RMH_SSIZE_FIXED }, |
471 | [CMD_SUPPORTED] = { .opcode: 0x020000, .st_length: 4, .st_type: RMH_SSIZE_FIXED }, |
472 | [CMD_TEST_IT] = { .opcode: 0x040000, .st_length: 1, .st_type: RMH_SSIZE_FIXED }, |
473 | [CMD_SEND_IRQA] = { .opcode: 0x070001, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
474 | [CMD_ACCESS_IO_WRITE] = { .opcode: 0x090000, .st_length: 1, .st_type: RMH_SSIZE_ARG }, |
475 | [CMD_ACCESS_IO_READ] = { .opcode: 0x094000, .st_length: 1, .st_type: RMH_SSIZE_ARG }, |
476 | [CMD_ASYNC] = { .opcode: 0x0a0000, .st_length: 1, .st_type: RMH_SSIZE_ARG }, |
477 | [CMD_MODIFY_CLOCK] = { .opcode: 0x0d0000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
478 | [CMD_RESYNC_AUDIO_INPUTS] = { .opcode: 0x0e0000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
479 | [CMD_GET_DSP_RESOURCES] = { .opcode: 0x100000, .st_length: 4, .st_type: RMH_SSIZE_FIXED }, |
480 | [CMD_SET_TIMER_INTERRUPT] = { .opcode: 0x110000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
481 | [CMD_RES_PIPE] = { .opcode: 0x400000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
482 | [CMD_FREE_PIPE] = { .opcode: 0x410000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
483 | [CMD_CONF_PIPE] = { .opcode: 0x422101, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
484 | [CMD_STOP_PIPE] = { .opcode: 0x470004, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
485 | [CMD_PIPE_SAMPLE_COUNT] = { .opcode: 0x49a000, .st_length: 2, .st_type: RMH_SSIZE_FIXED }, |
486 | [CMD_CAN_START_PIPE] = { .opcode: 0x4b0000, .st_length: 1, .st_type: RMH_SSIZE_FIXED }, |
487 | [CMD_START_STREAM] = { .opcode: 0x802000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
488 | [CMD_STREAM_OUT_LEVEL_ADJUST] = { .opcode: 0x822000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
489 | [CMD_STOP_STREAM] = { .opcode: 0x832000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
490 | [CMD_UPDATE_R_BUFFERS] = { .opcode: 0x840000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
491 | [CMD_FORMAT_STREAM_OUT] = { .opcode: 0x860000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
492 | [CMD_FORMAT_STREAM_IN] = { .opcode: 0x870000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
493 | [CMD_STREAM_SAMPLE_COUNT] = { .opcode: 0x902000, .st_length: 2, .st_type: RMH_SSIZE_FIXED }, |
494 | [CMD_AUDIO_LEVEL_ADJUST] = { .opcode: 0xc22000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
495 | [CMD_GET_TIME_CODE] = { .opcode: 0x060000, .st_length: 5, .st_type: RMH_SSIZE_FIXED }, |
496 | [CMD_MANAGE_SIGNAL] = { .opcode: 0x0f0000, .st_length: 0, .st_type: RMH_SSIZE_FIXED }, |
497 | }; |
498 | |
499 | #ifdef CONFIG_SND_DEBUG_VERBOSE |
500 | static const char * const cmd_names[] = { |
501 | [CMD_VERSION] = "CMD_VERSION" , |
502 | [CMD_SUPPORTED] = "CMD_SUPPORTED" , |
503 | [CMD_TEST_IT] = "CMD_TEST_IT" , |
504 | [CMD_SEND_IRQA] = "CMD_SEND_IRQA" , |
505 | [CMD_ACCESS_IO_WRITE] = "CMD_ACCESS_IO_WRITE" , |
506 | [CMD_ACCESS_IO_READ] = "CMD_ACCESS_IO_READ" , |
507 | [CMD_ASYNC] = "CMD_ASYNC" , |
508 | [CMD_MODIFY_CLOCK] = "CMD_MODIFY_CLOCK" , |
509 | [CMD_RESYNC_AUDIO_INPUTS] = "CMD_RESYNC_AUDIO_INPUTS" , |
510 | [CMD_GET_DSP_RESOURCES] = "CMD_GET_DSP_RESOURCES" , |
511 | [CMD_SET_TIMER_INTERRUPT] = "CMD_SET_TIMER_INTERRUPT" , |
512 | [CMD_RES_PIPE] = "CMD_RES_PIPE" , |
513 | [CMD_FREE_PIPE] = "CMD_FREE_PIPE" , |
514 | [CMD_CONF_PIPE] = "CMD_CONF_PIPE" , |
515 | [CMD_STOP_PIPE] = "CMD_STOP_PIPE" , |
516 | [CMD_PIPE_SAMPLE_COUNT] = "CMD_PIPE_SAMPLE_COUNT" , |
517 | [CMD_CAN_START_PIPE] = "CMD_CAN_START_PIPE" , |
518 | [CMD_START_STREAM] = "CMD_START_STREAM" , |
519 | [CMD_STREAM_OUT_LEVEL_ADJUST] = "CMD_STREAM_OUT_LEVEL_ADJUST" , |
520 | [CMD_STOP_STREAM] = "CMD_STOP_STREAM" , |
521 | [CMD_UPDATE_R_BUFFERS] = "CMD_UPDATE_R_BUFFERS" , |
522 | [CMD_FORMAT_STREAM_OUT] = "CMD_FORMAT_STREAM_OUT" , |
523 | [CMD_FORMAT_STREAM_IN] = "CMD_FORMAT_STREAM_IN" , |
524 | [CMD_STREAM_SAMPLE_COUNT] = "CMD_STREAM_SAMPLE_COUNT" , |
525 | [CMD_AUDIO_LEVEL_ADJUST] = "CMD_AUDIO_LEVEL_ADJUST" , |
526 | [CMD_GET_TIME_CODE] = "CMD_GET_TIME_CODE" , |
527 | [CMD_MANAGE_SIGNAL] = "CMD_MANAGE_SIGNAL" , |
528 | }; |
529 | #endif |
530 | |
531 | |
532 | static int pcxhr_read_rmh_status(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh) |
533 | { |
534 | int err; |
535 | int i; |
536 | u32 data; |
537 | u32 size_mask; |
538 | unsigned char reg; |
539 | int max_stat_len; |
540 | |
541 | if (rmh->stat_len < PCXHR_SIZE_MAX_STATUS) |
542 | max_stat_len = PCXHR_SIZE_MAX_STATUS; |
543 | else max_stat_len = rmh->stat_len; |
544 | |
545 | for (i = 0; i < rmh->stat_len; i++) { |
546 | /* wait for receiver full */ |
547 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, |
548 | PCXHR_ISR_HI08_RXDF, |
549 | PCXHR_ISR_HI08_RXDF, |
550 | PCXHR_TIMEOUT_DSP, read: ®); |
551 | if (err) { |
552 | dev_err(&mgr->pci->dev, |
553 | "ERROR RMH stat: ISR:RXDF=1 (ISR = %x; i=%d )\n" , |
554 | reg, i); |
555 | return err; |
556 | } |
557 | /* read data */ |
558 | data = PCXHR_INPB(mgr, PCXHR_DSP_TXH) << 16; |
559 | data |= PCXHR_INPB(mgr, PCXHR_DSP_TXM) << 8; |
560 | data |= PCXHR_INPB(mgr, PCXHR_DSP_TXL); |
561 | |
562 | /* need to update rmh->stat_len on the fly ?? */ |
563 | if (!i) { |
564 | if (rmh->dsp_stat != RMH_SSIZE_FIXED) { |
565 | if (rmh->dsp_stat == RMH_SSIZE_ARG) { |
566 | rmh->stat_len = (data & 0x0000ff) + 1; |
567 | data &= 0xffff00; |
568 | } else { |
569 | /* rmh->dsp_stat == RMH_SSIZE_MASK */ |
570 | rmh->stat_len = 1; |
571 | size_mask = data; |
572 | while (size_mask) { |
573 | if (size_mask & 1) |
574 | rmh->stat_len++; |
575 | size_mask >>= 1; |
576 | } |
577 | } |
578 | } |
579 | } |
580 | #ifdef CONFIG_SND_DEBUG_VERBOSE |
581 | if (rmh->cmd_idx < CMD_LAST_INDEX) |
582 | dev_dbg(&mgr->pci->dev, " stat[%d]=%x\n" , i, data); |
583 | #endif |
584 | if (i < max_stat_len) |
585 | rmh->stat[i] = data; |
586 | } |
587 | if (rmh->stat_len > max_stat_len) { |
588 | dev_dbg(&mgr->pci->dev, "PCXHR : rmh->stat_len=%x too big\n" , |
589 | rmh->stat_len); |
590 | rmh->stat_len = max_stat_len; |
591 | } |
592 | return 0; |
593 | } |
594 | |
595 | static int pcxhr_send_msg_nolock(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh) |
596 | { |
597 | int err; |
598 | int i; |
599 | u32 data; |
600 | unsigned char reg; |
601 | |
602 | if (snd_BUG_ON(rmh->cmd_len >= PCXHR_SIZE_MAX_CMD)) |
603 | return -EINVAL; |
604 | err = pcxhr_send_it_dsp(mgr, PCXHR_IT_MESSAGE, atomic: 1); |
605 | if (err) { |
606 | dev_err(&mgr->pci->dev, |
607 | "pcxhr_send_message : ED_DSP_CRASHED\n" ); |
608 | return err; |
609 | } |
610 | /* wait for chk bit */ |
611 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK, |
612 | PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, read: ®); |
613 | if (err) |
614 | return err; |
615 | /* reset irq chk */ |
616 | err = pcxhr_send_it_dsp(mgr, PCXHR_IT_RESET_CHK, atomic: 1); |
617 | if (err) |
618 | return err; |
619 | /* wait for chk bit == 0*/ |
620 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK, bit: 0, |
621 | PCXHR_TIMEOUT_DSP, read: ®); |
622 | if (err) |
623 | return err; |
624 | |
625 | data = rmh->cmd[0]; |
626 | |
627 | if (rmh->cmd_len > 1) |
628 | data |= 0x008000; /* MASK_MORE_THAN_1_WORD_COMMAND */ |
629 | else |
630 | data &= 0xff7fff; /* MASK_1_WORD_COMMAND */ |
631 | #ifdef CONFIG_SND_DEBUG_VERBOSE |
632 | if (rmh->cmd_idx < CMD_LAST_INDEX) |
633 | dev_dbg(&mgr->pci->dev, "MSG cmd[0]=%x (%s)\n" , |
634 | data, cmd_names[rmh->cmd_idx]); |
635 | #endif |
636 | |
637 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_TRDY, |
638 | PCXHR_ISR_HI08_TRDY, PCXHR_TIMEOUT_DSP, read: ®); |
639 | if (err) |
640 | return err; |
641 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, (data>>16)&0xFF); |
642 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, (data>>8)&0xFF); |
643 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, (data&0xFF)); |
644 | |
645 | if (rmh->cmd_len > 1) { |
646 | /* send length */ |
647 | data = rmh->cmd_len - 1; |
648 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, |
649 | PCXHR_ISR_HI08_TRDY, |
650 | PCXHR_ISR_HI08_TRDY, |
651 | PCXHR_TIMEOUT_DSP, read: ®); |
652 | if (err) |
653 | return err; |
654 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, (data>>16)&0xFF); |
655 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, (data>>8)&0xFF); |
656 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, (data&0xFF)); |
657 | |
658 | for (i=1; i < rmh->cmd_len; i++) { |
659 | /* send other words */ |
660 | data = rmh->cmd[i]; |
661 | #ifdef CONFIG_SND_DEBUG_VERBOSE |
662 | if (rmh->cmd_idx < CMD_LAST_INDEX) |
663 | dev_dbg(&mgr->pci->dev, |
664 | " cmd[%d]=%x\n" , i, data); |
665 | #endif |
666 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, |
667 | PCXHR_ISR_HI08_TRDY, |
668 | PCXHR_ISR_HI08_TRDY, |
669 | PCXHR_TIMEOUT_DSP, read: ®); |
670 | if (err) |
671 | return err; |
672 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXH, (data>>16)&0xFF); |
673 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXM, (data>>8)&0xFF); |
674 | PCXHR_OUTPB(mgr, PCXHR_DSP_TXL, (data&0xFF)); |
675 | } |
676 | } |
677 | /* wait for chk bit */ |
678 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_CHK, |
679 | PCXHR_ISR_HI08_CHK, PCXHR_TIMEOUT_DSP, read: ®); |
680 | if (err) |
681 | return err; |
682 | /* test status ISR */ |
683 | if (reg & PCXHR_ISR_HI08_ERR) { |
684 | /* ERROR, wait for receiver full */ |
685 | err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, |
686 | PCXHR_ISR_HI08_RXDF, |
687 | PCXHR_ISR_HI08_RXDF, |
688 | PCXHR_TIMEOUT_DSP, read: ®); |
689 | if (err) { |
690 | dev_err(&mgr->pci->dev, |
691 | "ERROR RMH: ISR:RXDF=1 (ISR = %x)\n" , reg); |
692 | return err; |
693 | } |
694 | /* read error code */ |
695 | data = PCXHR_INPB(mgr, PCXHR_DSP_TXH) << 16; |
696 | data |= PCXHR_INPB(mgr, PCXHR_DSP_TXM) << 8; |
697 | data |= PCXHR_INPB(mgr, PCXHR_DSP_TXL); |
698 | dev_err(&mgr->pci->dev, "ERROR RMH(%d): 0x%x\n" , |
699 | rmh->cmd_idx, data); |
700 | err = -EINVAL; |
701 | } else { |
702 | /* read the response data */ |
703 | err = pcxhr_read_rmh_status(mgr, rmh); |
704 | } |
705 | /* reset semaphore */ |
706 | if (pcxhr_send_it_dsp(mgr, PCXHR_IT_RESET_SEMAPHORE, atomic: 1) < 0) |
707 | return -EIO; |
708 | return err; |
709 | } |
710 | |
711 | |
712 | /** |
713 | * pcxhr_init_rmh - initialize the RMH instance |
714 | * @rmh: the rmh pointer to be initialized |
715 | * @cmd: the rmh command to be set |
716 | */ |
717 | void pcxhr_init_rmh(struct pcxhr_rmh *rmh, int cmd) |
718 | { |
719 | if (snd_BUG_ON(cmd >= CMD_LAST_INDEX)) |
720 | return; |
721 | rmh->cmd[0] = pcxhr_dsp_cmds[cmd].opcode; |
722 | rmh->cmd_len = 1; |
723 | rmh->stat_len = pcxhr_dsp_cmds[cmd].st_length; |
724 | rmh->dsp_stat = pcxhr_dsp_cmds[cmd].st_type; |
725 | rmh->cmd_idx = cmd; |
726 | } |
727 | |
728 | |
729 | void pcxhr_set_pipe_cmd_params(struct pcxhr_rmh *rmh, int capture, |
730 | unsigned int param1, unsigned int param2, |
731 | unsigned int param3) |
732 | { |
733 | snd_BUG_ON(param1 > MASK_FIRST_FIELD); |
734 | if (capture) |
735 | rmh->cmd[0] |= 0x800; /* COMMAND_RECORD_MASK */ |
736 | if (param1) |
737 | rmh->cmd[0] |= (param1 << FIELD_SIZE); |
738 | if (param2) { |
739 | snd_BUG_ON(param2 > MASK_FIRST_FIELD); |
740 | rmh->cmd[0] |= param2; |
741 | } |
742 | if(param3) { |
743 | snd_BUG_ON(param3 > MASK_DSP_WORD); |
744 | rmh->cmd[1] = param3; |
745 | rmh->cmd_len = 2; |
746 | } |
747 | } |
748 | |
749 | /* |
750 | * pcxhr_send_msg - send a DSP message with spinlock |
751 | * @rmh: the rmh record to send and receive |
752 | * |
753 | * returns 0 if successful, or a negative error code. |
754 | */ |
755 | int pcxhr_send_msg(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh) |
756 | { |
757 | int err; |
758 | |
759 | mutex_lock(&mgr->msg_lock); |
760 | err = pcxhr_send_msg_nolock(mgr, rmh); |
761 | mutex_unlock(lock: &mgr->msg_lock); |
762 | return err; |
763 | } |
764 | |
765 | static inline int pcxhr_pipes_running(struct pcxhr_mgr *mgr) |
766 | { |
767 | int start_mask = PCXHR_INPL(mgr, PCXHR_PLX_MBOX2); |
768 | /* least segnificant 12 bits are the pipe states |
769 | * for the playback audios |
770 | * next 12 bits are the pipe states for the capture audios |
771 | * (PCXHR_PIPE_STATE_CAPTURE_OFFSET) |
772 | */ |
773 | start_mask &= 0xffffff; |
774 | dev_dbg(&mgr->pci->dev, "CMD_PIPE_STATE MBOX2=0x%06x\n" , start_mask); |
775 | return start_mask; |
776 | } |
777 | |
778 | #define PCXHR_PIPE_STATE_CAPTURE_OFFSET 12 |
779 | #define MAX_WAIT_FOR_DSP 20 |
780 | |
781 | static int pcxhr_prepair_pipe_start(struct pcxhr_mgr *mgr, |
782 | int audio_mask, int *retry) |
783 | { |
784 | struct pcxhr_rmh rmh; |
785 | int err; |
786 | int audio = 0; |
787 | |
788 | *retry = 0; |
789 | while (audio_mask) { |
790 | if (audio_mask & 1) { |
791 | pcxhr_init_rmh(rmh: &rmh, cmd: CMD_CAN_START_PIPE); |
792 | if (audio < PCXHR_PIPE_STATE_CAPTURE_OFFSET) { |
793 | /* can start playback pipe */ |
794 | pcxhr_set_pipe_cmd_params(rmh: &rmh, capture: 0, param1: audio, param2: 0, param3: 0); |
795 | } else { |
796 | /* can start capture pipe */ |
797 | pcxhr_set_pipe_cmd_params(rmh: &rmh, capture: 1, param1: audio - |
798 | PCXHR_PIPE_STATE_CAPTURE_OFFSET, |
799 | param2: 0, param3: 0); |
800 | } |
801 | err = pcxhr_send_msg(mgr, rmh: &rmh); |
802 | if (err) { |
803 | dev_err(&mgr->pci->dev, |
804 | "error pipe start " |
805 | "(CMD_CAN_START_PIPE) err=%x!\n" , |
806 | err); |
807 | return err; |
808 | } |
809 | /* if the pipe couldn't be prepaired for start, |
810 | * retry it later |
811 | */ |
812 | if (rmh.stat[0] == 0) |
813 | *retry |= (1<<audio); |
814 | } |
815 | audio_mask>>=1; |
816 | audio++; |
817 | } |
818 | return 0; |
819 | } |
820 | |
821 | static int pcxhr_stop_pipes(struct pcxhr_mgr *mgr, int audio_mask) |
822 | { |
823 | struct pcxhr_rmh rmh; |
824 | int err; |
825 | int audio = 0; |
826 | |
827 | while (audio_mask) { |
828 | if (audio_mask & 1) { |
829 | pcxhr_init_rmh(rmh: &rmh, cmd: CMD_STOP_PIPE); |
830 | if (audio < PCXHR_PIPE_STATE_CAPTURE_OFFSET) { |
831 | /* stop playback pipe */ |
832 | pcxhr_set_pipe_cmd_params(rmh: &rmh, capture: 0, param1: audio, param2: 0, param3: 0); |
833 | } else { |
834 | /* stop capture pipe */ |
835 | pcxhr_set_pipe_cmd_params(rmh: &rmh, capture: 1, param1: audio - |
836 | PCXHR_PIPE_STATE_CAPTURE_OFFSET, |
837 | param2: 0, param3: 0); |
838 | } |
839 | err = pcxhr_send_msg(mgr, rmh: &rmh); |
840 | if (err) { |
841 | dev_err(&mgr->pci->dev, |
842 | "error pipe stop " |
843 | "(CMD_STOP_PIPE) err=%x!\n" , err); |
844 | return err; |
845 | } |
846 | } |
847 | audio_mask>>=1; |
848 | audio++; |
849 | } |
850 | return 0; |
851 | } |
852 | |
853 | static int pcxhr_toggle_pipes(struct pcxhr_mgr *mgr, int audio_mask) |
854 | { |
855 | struct pcxhr_rmh rmh; |
856 | int err; |
857 | int audio = 0; |
858 | |
859 | while (audio_mask) { |
860 | if (audio_mask & 1) { |
861 | pcxhr_init_rmh(rmh: &rmh, cmd: CMD_CONF_PIPE); |
862 | if (audio < PCXHR_PIPE_STATE_CAPTURE_OFFSET) |
863 | pcxhr_set_pipe_cmd_params(rmh: &rmh, capture: 0, param1: 0, param2: 0, |
864 | param3: 1 << audio); |
865 | else |
866 | pcxhr_set_pipe_cmd_params(rmh: &rmh, capture: 1, param1: 0, param2: 0, |
867 | param3: 1 << (audio - PCXHR_PIPE_STATE_CAPTURE_OFFSET)); |
868 | err = pcxhr_send_msg(mgr, rmh: &rmh); |
869 | if (err) { |
870 | dev_err(&mgr->pci->dev, |
871 | "error pipe start " |
872 | "(CMD_CONF_PIPE) err=%x!\n" , err); |
873 | return err; |
874 | } |
875 | } |
876 | audio_mask>>=1; |
877 | audio++; |
878 | } |
879 | /* now fire the interrupt on the card */ |
880 | pcxhr_init_rmh(rmh: &rmh, cmd: CMD_SEND_IRQA); |
881 | err = pcxhr_send_msg(mgr, rmh: &rmh); |
882 | if (err) { |
883 | dev_err(&mgr->pci->dev, |
884 | "error pipe start (CMD_SEND_IRQA) err=%x!\n" , |
885 | err); |
886 | return err; |
887 | } |
888 | return 0; |
889 | } |
890 | |
891 | |
892 | |
893 | int pcxhr_set_pipe_state(struct pcxhr_mgr *mgr, int playback_mask, |
894 | int capture_mask, int start) |
895 | { |
896 | int state, i, err; |
897 | int audio_mask; |
898 | |
899 | #ifdef CONFIG_SND_DEBUG_VERBOSE |
900 | ktime_t start_time, stop_time, diff_time; |
901 | |
902 | start_time = ktime_get(); |
903 | #endif |
904 | audio_mask = (playback_mask | |
905 | (capture_mask << PCXHR_PIPE_STATE_CAPTURE_OFFSET)); |
906 | /* current pipe state (playback + record) */ |
907 | state = pcxhr_pipes_running(mgr); |
908 | dev_dbg(&mgr->pci->dev, |
909 | "pcxhr_set_pipe_state %s (mask %x current %x)\n" , |
910 | start ? "START" : "STOP" , audio_mask, state); |
911 | if (start) { |
912 | /* start only pipes that are not yet started */ |
913 | audio_mask &= ~state; |
914 | state = audio_mask; |
915 | for (i = 0; i < MAX_WAIT_FOR_DSP; i++) { |
916 | err = pcxhr_prepair_pipe_start(mgr, audio_mask: state, retry: &state); |
917 | if (err) |
918 | return err; |
919 | if (state == 0) |
920 | break; /* success, all pipes prepaired */ |
921 | mdelay(1); /* wait 1 millisecond and retry */ |
922 | } |
923 | } else { |
924 | audio_mask &= state; /* stop only pipes that are started */ |
925 | } |
926 | if (audio_mask == 0) |
927 | return 0; |
928 | |
929 | err = pcxhr_toggle_pipes(mgr, audio_mask); |
930 | if (err) |
931 | return err; |
932 | |
933 | i = 0; |
934 | while (1) { |
935 | state = pcxhr_pipes_running(mgr); |
936 | /* have all pipes the new state ? */ |
937 | if ((state & audio_mask) == (start ? audio_mask : 0)) |
938 | break; |
939 | if (++i >= MAX_WAIT_FOR_DSP * 100) { |
940 | dev_err(&mgr->pci->dev, "error pipe start/stop\n" ); |
941 | return -EBUSY; |
942 | } |
943 | udelay(10); /* wait 10 microseconds */ |
944 | } |
945 | if (!start) { |
946 | err = pcxhr_stop_pipes(mgr, audio_mask); |
947 | if (err) |
948 | return err; |
949 | } |
950 | #ifdef CONFIG_SND_DEBUG_VERBOSE |
951 | stop_time = ktime_get(); |
952 | diff_time = ktime_sub(stop_time, start_time); |
953 | dev_dbg(&mgr->pci->dev, "***SET PIPE STATE*** TIME = %ld (err = %x)\n" , |
954 | (long)(ktime_to_ns(diff_time)), err); |
955 | #endif |
956 | return 0; |
957 | } |
958 | |
959 | int pcxhr_write_io_num_reg_cont(struct pcxhr_mgr *mgr, unsigned int mask, |
960 | unsigned int value, int *changed) |
961 | { |
962 | struct pcxhr_rmh rmh; |
963 | int err; |
964 | |
965 | mutex_lock(&mgr->msg_lock); |
966 | if ((mgr->io_num_reg_cont & mask) == value) { |
967 | dev_dbg(&mgr->pci->dev, |
968 | "IO_NUM_REG_CONT mask %x already is set to %x\n" , |
969 | mask, value); |
970 | if (changed) |
971 | *changed = 0; |
972 | mutex_unlock(lock: &mgr->msg_lock); |
973 | return 0; /* already programmed */ |
974 | } |
975 | pcxhr_init_rmh(rmh: &rmh, cmd: CMD_ACCESS_IO_WRITE); |
976 | rmh.cmd[0] |= IO_NUM_REG_CONT; |
977 | rmh.cmd[1] = mask; |
978 | rmh.cmd[2] = value; |
979 | rmh.cmd_len = 3; |
980 | err = pcxhr_send_msg_nolock(mgr, rmh: &rmh); |
981 | if (err == 0) { |
982 | mgr->io_num_reg_cont &= ~mask; |
983 | mgr->io_num_reg_cont |= value; |
984 | if (changed) |
985 | *changed = 1; |
986 | } |
987 | mutex_unlock(lock: &mgr->msg_lock); |
988 | return err; |
989 | } |
990 | |
991 | #define PCXHR_IRQ_TIMER 0x000300 |
992 | #define PCXHR_IRQ_FREQ_CHANGE 0x000800 |
993 | #define PCXHR_IRQ_TIME_CODE 0x001000 |
994 | #define PCXHR_IRQ_NOTIFY 0x002000 |
995 | #define PCXHR_IRQ_ASYNC 0x008000 |
996 | #define PCXHR_IRQ_MASK 0x00bb00 |
997 | #define PCXHR_FATAL_DSP_ERR 0xff0000 |
998 | |
999 | enum pcxhr_async_err_src { |
1000 | PCXHR_ERR_PIPE, |
1001 | PCXHR_ERR_STREAM, |
1002 | PCXHR_ERR_AUDIO |
1003 | }; |
1004 | |
1005 | static int pcxhr_handle_async_err(struct pcxhr_mgr *mgr, u32 err, |
1006 | enum pcxhr_async_err_src err_src, int pipe, |
1007 | int is_capture) |
1008 | { |
1009 | static const char * const err_src_name[] = { |
1010 | [PCXHR_ERR_PIPE] = "Pipe" , |
1011 | [PCXHR_ERR_STREAM] = "Stream" , |
1012 | [PCXHR_ERR_AUDIO] = "Audio" |
1013 | }; |
1014 | |
1015 | if (err & 0xfff) |
1016 | err &= 0xfff; |
1017 | else |
1018 | err = ((err >> 12) & 0xfff); |
1019 | if (!err) |
1020 | return 0; |
1021 | dev_dbg(&mgr->pci->dev, "CMD_ASYNC : Error %s %s Pipe %d err=%x\n" , |
1022 | err_src_name[err_src], |
1023 | is_capture ? "Record" : "Play" , pipe, err); |
1024 | if (err == 0xe01) |
1025 | mgr->async_err_stream_xrun++; |
1026 | else if (err == 0xe10) |
1027 | mgr->async_err_pipe_xrun++; |
1028 | else |
1029 | mgr->async_err_other_last = (int)err; |
1030 | return 1; |
1031 | } |
1032 | |
1033 | |
1034 | static void pcxhr_msg_thread(struct pcxhr_mgr *mgr) |
1035 | { |
1036 | struct pcxhr_rmh *prmh = mgr->prmh; |
1037 | int err; |
1038 | int i, j; |
1039 | |
1040 | if (mgr->src_it_dsp & PCXHR_IRQ_FREQ_CHANGE) |
1041 | dev_dbg(&mgr->pci->dev, |
1042 | "PCXHR_IRQ_FREQ_CHANGE event occurred\n" ); |
1043 | if (mgr->src_it_dsp & PCXHR_IRQ_TIME_CODE) |
1044 | dev_dbg(&mgr->pci->dev, |
1045 | "PCXHR_IRQ_TIME_CODE event occurred\n" ); |
1046 | if (mgr->src_it_dsp & PCXHR_IRQ_NOTIFY) |
1047 | dev_dbg(&mgr->pci->dev, |
1048 | "PCXHR_IRQ_NOTIFY event occurred\n" ); |
1049 | if (mgr->src_it_dsp & (PCXHR_IRQ_FREQ_CHANGE | PCXHR_IRQ_TIME_CODE)) { |
1050 | /* clear events FREQ_CHANGE and TIME_CODE */ |
1051 | pcxhr_init_rmh(rmh: prmh, cmd: CMD_TEST_IT); |
1052 | err = pcxhr_send_msg(mgr, rmh: prmh); |
1053 | dev_dbg(&mgr->pci->dev, "CMD_TEST_IT : err=%x, stat=%x\n" , |
1054 | err, prmh->stat[0]); |
1055 | } |
1056 | if (mgr->src_it_dsp & PCXHR_IRQ_ASYNC) { |
1057 | dev_dbg(&mgr->pci->dev, |
1058 | "PCXHR_IRQ_ASYNC event occurred\n" ); |
1059 | |
1060 | pcxhr_init_rmh(rmh: prmh, cmd: CMD_ASYNC); |
1061 | prmh->cmd[0] |= 1; /* add SEL_ASYNC_EVENTS */ |
1062 | /* this is the only one extra long response command */ |
1063 | prmh->stat_len = PCXHR_SIZE_MAX_LONG_STATUS; |
1064 | err = pcxhr_send_msg(mgr, rmh: prmh); |
1065 | if (err) |
1066 | dev_err(&mgr->pci->dev, "ERROR pcxhr_msg_thread=%x;\n" , |
1067 | err); |
1068 | i = 1; |
1069 | while (i < prmh->stat_len) { |
1070 | int nb_audio = ((prmh->stat[i] >> FIELD_SIZE) & |
1071 | MASK_FIRST_FIELD); |
1072 | int nb_stream = ((prmh->stat[i] >> (2*FIELD_SIZE)) & |
1073 | MASK_FIRST_FIELD); |
1074 | int pipe = prmh->stat[i] & MASK_FIRST_FIELD; |
1075 | int is_capture = prmh->stat[i] & 0x400000; |
1076 | u32 err2; |
1077 | |
1078 | if (prmh->stat[i] & 0x800000) { /* if BIT_END */ |
1079 | dev_dbg(&mgr->pci->dev, |
1080 | "TASKLET : End%sPipe %d\n" , |
1081 | is_capture ? "Record" : "Play" , |
1082 | pipe); |
1083 | } |
1084 | i++; |
1085 | err2 = prmh->stat[i] ? prmh->stat[i] : prmh->stat[i+1]; |
1086 | if (err2) |
1087 | pcxhr_handle_async_err(mgr, err: err2, |
1088 | err_src: PCXHR_ERR_PIPE, |
1089 | pipe, is_capture); |
1090 | i += 2; |
1091 | for (j = 0; j < nb_stream; j++) { |
1092 | err2 = prmh->stat[i] ? |
1093 | prmh->stat[i] : prmh->stat[i+1]; |
1094 | if (err2) |
1095 | pcxhr_handle_async_err(mgr, err: err2, |
1096 | err_src: PCXHR_ERR_STREAM, |
1097 | pipe, |
1098 | is_capture); |
1099 | i += 2; |
1100 | } |
1101 | for (j = 0; j < nb_audio; j++) { |
1102 | err2 = prmh->stat[i] ? |
1103 | prmh->stat[i] : prmh->stat[i+1]; |
1104 | if (err2) |
1105 | pcxhr_handle_async_err(mgr, err: err2, |
1106 | err_src: PCXHR_ERR_AUDIO, |
1107 | pipe, |
1108 | is_capture); |
1109 | i += 2; |
1110 | } |
1111 | } |
1112 | } |
1113 | } |
1114 | |
1115 | static u_int64_t pcxhr_stream_read_position(struct pcxhr_mgr *mgr, |
1116 | struct pcxhr_stream *stream) |
1117 | { |
1118 | u_int64_t hw_sample_count; |
1119 | struct pcxhr_rmh rmh; |
1120 | int err, stream_mask; |
1121 | |
1122 | stream_mask = stream->pipe->is_capture ? 1 : 1<<stream->substream->number; |
1123 | |
1124 | /* get sample count for one stream */ |
1125 | pcxhr_init_rmh(rmh: &rmh, cmd: CMD_STREAM_SAMPLE_COUNT); |
1126 | pcxhr_set_pipe_cmd_params(rmh: &rmh, capture: stream->pipe->is_capture, |
1127 | param1: stream->pipe->first_audio, param2: 0, param3: stream_mask); |
1128 | /* rmh.stat_len = 2; */ /* 2 resp data for each stream of the pipe */ |
1129 | |
1130 | err = pcxhr_send_msg(mgr, rmh: &rmh); |
1131 | if (err) |
1132 | return 0; |
1133 | |
1134 | hw_sample_count = ((u_int64_t)rmh.stat[0]) << 24; |
1135 | hw_sample_count += (u_int64_t)rmh.stat[1]; |
1136 | |
1137 | dev_dbg(&mgr->pci->dev, |
1138 | "stream %c%d : abs samples real(%llu) timer(%llu)\n" , |
1139 | stream->pipe->is_capture ? 'C' : 'P', |
1140 | stream->substream->number, |
1141 | hw_sample_count, |
1142 | stream->timer_abs_periods + stream->timer_period_frag + |
1143 | mgr->granularity); |
1144 | return hw_sample_count; |
1145 | } |
1146 | |
1147 | static void pcxhr_update_timer_pos(struct pcxhr_mgr *mgr, |
1148 | struct pcxhr_stream *stream, |
1149 | int samples_to_add) |
1150 | { |
1151 | if (stream->substream && |
1152 | (stream->status == PCXHR_STREAM_STATUS_RUNNING)) { |
1153 | u_int64_t new_sample_count; |
1154 | int elapsed = 0; |
1155 | int hardware_read = 0; |
1156 | struct snd_pcm_runtime *runtime = stream->substream->runtime; |
1157 | |
1158 | if (samples_to_add < 0) { |
1159 | stream->timer_is_synced = 0; |
1160 | /* add default if no hardware_read possible */ |
1161 | samples_to_add = mgr->granularity; |
1162 | } |
1163 | |
1164 | if (!stream->timer_is_synced) { |
1165 | if ((stream->timer_abs_periods != 0) || |
1166 | ((stream->timer_period_frag + samples_to_add) >= |
1167 | runtime->period_size)) { |
1168 | new_sample_count = |
1169 | pcxhr_stream_read_position(mgr, stream); |
1170 | hardware_read = 1; |
1171 | if (new_sample_count >= mgr->granularity) { |
1172 | /* sub security offset because of |
1173 | * jitter and finer granularity of |
1174 | * dsp time (MBOX4) |
1175 | */ |
1176 | new_sample_count -= mgr->granularity; |
1177 | stream->timer_is_synced = 1; |
1178 | } |
1179 | } |
1180 | } |
1181 | if (!hardware_read) { |
1182 | /* if we didn't try to sync the position, increment it |
1183 | * by PCXHR_GRANULARITY every timer interrupt |
1184 | */ |
1185 | new_sample_count = stream->timer_abs_periods + |
1186 | stream->timer_period_frag + samples_to_add; |
1187 | } |
1188 | while (1) { |
1189 | u_int64_t new_elapse_pos = stream->timer_abs_periods + |
1190 | runtime->period_size; |
1191 | if (new_elapse_pos > new_sample_count) |
1192 | break; |
1193 | elapsed = 1; |
1194 | stream->timer_buf_periods++; |
1195 | if (stream->timer_buf_periods >= runtime->periods) |
1196 | stream->timer_buf_periods = 0; |
1197 | stream->timer_abs_periods = new_elapse_pos; |
1198 | } |
1199 | if (new_sample_count >= stream->timer_abs_periods) { |
1200 | stream->timer_period_frag = |
1201 | (u_int32_t)(new_sample_count - |
1202 | stream->timer_abs_periods); |
1203 | } else { |
1204 | dev_err(&mgr->pci->dev, |
1205 | "ERROR new_sample_count too small ??? %ld\n" , |
1206 | (long unsigned int)new_sample_count); |
1207 | } |
1208 | |
1209 | if (elapsed) { |
1210 | mutex_unlock(lock: &mgr->lock); |
1211 | snd_pcm_period_elapsed(substream: stream->substream); |
1212 | mutex_lock(&mgr->lock); |
1213 | } |
1214 | } |
1215 | } |
1216 | |
1217 | irqreturn_t pcxhr_interrupt(int irq, void *dev_id) |
1218 | { |
1219 | struct pcxhr_mgr *mgr = dev_id; |
1220 | unsigned int reg; |
1221 | bool wake_thread = false; |
1222 | |
1223 | reg = PCXHR_INPL(mgr, PCXHR_PLX_IRQCS); |
1224 | if (! (reg & PCXHR_IRQCS_ACTIVE_PCIDB)) { |
1225 | /* this device did not cause the interrupt */ |
1226 | return IRQ_NONE; |
1227 | } |
1228 | |
1229 | /* clear interrupt */ |
1230 | reg = PCXHR_INPL(mgr, PCXHR_PLX_L2PCIDB); |
1231 | PCXHR_OUTPL(mgr, PCXHR_PLX_L2PCIDB, reg); |
1232 | |
1233 | /* timer irq occurred */ |
1234 | if (reg & PCXHR_IRQ_TIMER) { |
1235 | int timer_toggle = reg & PCXHR_IRQ_TIMER; |
1236 | if (timer_toggle == mgr->timer_toggle) { |
1237 | dev_dbg(&mgr->pci->dev, "ERROR TIMER TOGGLE\n" ); |
1238 | mgr->dsp_time_err++; |
1239 | } |
1240 | |
1241 | mgr->timer_toggle = timer_toggle; |
1242 | mgr->src_it_dsp = reg; |
1243 | wake_thread = true; |
1244 | } |
1245 | |
1246 | /* other irq's handled in the thread */ |
1247 | if (reg & PCXHR_IRQ_MASK) { |
1248 | if (reg & PCXHR_IRQ_ASYNC) { |
1249 | /* as we didn't request any async notifications, |
1250 | * some kind of xrun error will probably occurred |
1251 | */ |
1252 | /* better resynchronize all streams next interrupt : */ |
1253 | mgr->dsp_time_last = PCXHR_DSP_TIME_INVALID; |
1254 | } |
1255 | mgr->src_it_dsp = reg; |
1256 | wake_thread = true; |
1257 | } |
1258 | #ifdef CONFIG_SND_DEBUG_VERBOSE |
1259 | if (reg & PCXHR_FATAL_DSP_ERR) |
1260 | dev_dbg(&mgr->pci->dev, "FATAL DSP ERROR : %x\n" , reg); |
1261 | #endif |
1262 | |
1263 | return wake_thread ? IRQ_WAKE_THREAD : IRQ_HANDLED; |
1264 | } |
1265 | |
1266 | irqreturn_t pcxhr_threaded_irq(int irq, void *dev_id) |
1267 | { |
1268 | struct pcxhr_mgr *mgr = dev_id; |
1269 | int i, j; |
1270 | struct snd_pcxhr *chip; |
1271 | |
1272 | mutex_lock(&mgr->lock); |
1273 | if (mgr->src_it_dsp & PCXHR_IRQ_TIMER) { |
1274 | /* is a 24 bit counter */ |
1275 | int dsp_time_new = |
1276 | PCXHR_INPL(mgr, PCXHR_PLX_MBOX4) & PCXHR_DSP_TIME_MASK; |
1277 | int dsp_time_diff = dsp_time_new - mgr->dsp_time_last; |
1278 | |
1279 | if ((dsp_time_diff < 0) && |
1280 | (mgr->dsp_time_last != PCXHR_DSP_TIME_INVALID)) { |
1281 | /* handle dsp counter wraparound without resync */ |
1282 | int tmp_diff = dsp_time_diff + PCXHR_DSP_TIME_MASK + 1; |
1283 | dev_dbg(&mgr->pci->dev, |
1284 | "WARNING DSP timestamp old(%d) new(%d)" , |
1285 | mgr->dsp_time_last, dsp_time_new); |
1286 | if (tmp_diff > 0 && tmp_diff <= (2*mgr->granularity)) { |
1287 | dev_dbg(&mgr->pci->dev, |
1288 | "-> timestamp wraparound OK: " |
1289 | "diff=%d\n" , tmp_diff); |
1290 | dsp_time_diff = tmp_diff; |
1291 | } else { |
1292 | dev_dbg(&mgr->pci->dev, |
1293 | "-> resynchronize all streams\n" ); |
1294 | mgr->dsp_time_err++; |
1295 | } |
1296 | } |
1297 | #ifdef CONFIG_SND_DEBUG_VERBOSE |
1298 | if (dsp_time_diff == 0) |
1299 | dev_dbg(&mgr->pci->dev, |
1300 | "ERROR DSP TIME NO DIFF time(%d)\n" , |
1301 | dsp_time_new); |
1302 | else if (dsp_time_diff >= (2*mgr->granularity)) |
1303 | dev_dbg(&mgr->pci->dev, |
1304 | "ERROR DSP TIME TOO BIG old(%d) add(%d)\n" , |
1305 | mgr->dsp_time_last, |
1306 | dsp_time_new - mgr->dsp_time_last); |
1307 | else if (dsp_time_diff % mgr->granularity) |
1308 | dev_dbg(&mgr->pci->dev, |
1309 | "ERROR DSP TIME increased by %d\n" , |
1310 | dsp_time_diff); |
1311 | #endif |
1312 | mgr->dsp_time_last = dsp_time_new; |
1313 | |
1314 | for (i = 0; i < mgr->num_cards; i++) { |
1315 | chip = mgr->chip[i]; |
1316 | for (j = 0; j < chip->nb_streams_capt; j++) |
1317 | pcxhr_update_timer_pos(mgr, |
1318 | stream: &chip->capture_stream[j], |
1319 | samples_to_add: dsp_time_diff); |
1320 | } |
1321 | for (i = 0; i < mgr->num_cards; i++) { |
1322 | chip = mgr->chip[i]; |
1323 | for (j = 0; j < chip->nb_streams_play; j++) |
1324 | pcxhr_update_timer_pos(mgr, |
1325 | stream: &chip->playback_stream[j], |
1326 | samples_to_add: dsp_time_diff); |
1327 | } |
1328 | } |
1329 | |
1330 | pcxhr_msg_thread(mgr); |
1331 | mutex_unlock(lock: &mgr->lock); |
1332 | return IRQ_HANDLED; |
1333 | } |
1334 | |