Commit | Line | Data |
---|---|---|
9b4ffa48 | 1 | /* |
9ac25594 | 2 | * Driver for audio on multifunction CS5535/6 companion device |
9b4ffa48 JK |
3 | * Copyright (C) Jaya Kumar |
4 | * | |
5 | * Based on Jaroslav Kysela and Takashi Iwai's examples. | |
6 | * This work was sponsored by CIS(M) Sdn Bhd. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/delay.h> | |
25 | #include <linux/interrupt.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/pci.h> | |
28 | #include <linux/slab.h> | |
65a77217 | 29 | #include <linux/module.h> |
6cbbfe1c | 30 | #include <linux/io.h> |
9b4ffa48 JK |
31 | #include <sound/core.h> |
32 | #include <sound/control.h> | |
33 | #include <sound/pcm.h> | |
34 | #include <sound/rawmidi.h> | |
35 | #include <sound/ac97_codec.h> | |
36 | #include <sound/initval.h> | |
37 | #include <sound/asoundef.h> | |
38 | #include "cs5535audio.h" | |
39 | ||
40 | #define DRIVER_NAME "cs5535audio" | |
41 | ||
9ac25594 JK |
42 | static char *ac97_quirk; |
43 | module_param(ac97_quirk, charp, 0444); | |
44 | MODULE_PARM_DESC(ac97_quirk, "AC'97 board specific workarounds."); | |
45 | ||
eab0fbfa | 46 | static const struct ac97_quirk ac97_quirks[] = { |
9ac25594 JK |
47 | #if 0 /* Not yet confirmed if all 5536 boards are HP only */ |
48 | { | |
49 | .subvendor = PCI_VENDOR_ID_AMD, | |
50 | .subdevice = PCI_DEVICE_ID_AMD_CS5536_AUDIO, | |
51 | .name = "AMD RDK", | |
52 | .type = AC97_TUNE_HP_ONLY | |
53 | }, | |
54 | #endif | |
55 | {} | |
56 | }; | |
9b4ffa48 | 57 | |
302e4c2f TI |
58 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
59 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; | |
a67ff6a5 | 60 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
9b4ffa48 | 61 | |
302e4c2f | 62 | module_param_array(index, int, NULL, 0444); |
1dbfd8c5 | 63 | MODULE_PARM_DESC(index, "Index value for " DRIVER_NAME); |
302e4c2f | 64 | module_param_array(id, charp, NULL, 0444); |
1dbfd8c5 | 65 | MODULE_PARM_DESC(id, "ID string for " DRIVER_NAME); |
302e4c2f TI |
66 | module_param_array(enable, bool, NULL, 0444); |
67 | MODULE_PARM_DESC(enable, "Enable " DRIVER_NAME); | |
1dbfd8c5 | 68 | |
9baa3c34 | 69 | static const struct pci_device_id snd_cs5535audio_ids[] = { |
9ac25594 JK |
70 | { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_AUDIO) }, |
71 | { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_AUDIO) }, | |
9b4ffa48 JK |
72 | {} |
73 | }; | |
74 | ||
75 | MODULE_DEVICE_TABLE(pci, snd_cs5535audio_ids); | |
76 | ||
66f8df6b | 77 | static void wait_till_cmd_acked(struct cs5535audio *cs5535au, unsigned long timeout) |
9b4ffa48 | 78 | { |
3e873174 | 79 | unsigned int tmp; |
9b4ffa48 JK |
80 | do { |
81 | tmp = cs_readl(cs5535au, ACC_CODEC_CNTL); | |
82 | if (!(tmp & CMD_NEW)) | |
83 | break; | |
1037593c | 84 | udelay(1); |
9b4ffa48 JK |
85 | } while (--timeout); |
86 | if (!timeout) | |
00980aa9 TI |
87 | dev_err(cs5535au->card->dev, |
88 | "Failure writing to cs5535 codec\n"); | |
9b4ffa48 JK |
89 | } |
90 | ||
66f8df6b TI |
91 | static unsigned short snd_cs5535audio_codec_read(struct cs5535audio *cs5535au, |
92 | unsigned short reg) | |
9b4ffa48 | 93 | { |
3e873174 | 94 | unsigned int regdata; |
66f8df6b | 95 | unsigned int timeout; |
3e873174 | 96 | unsigned int val; |
9b4ffa48 | 97 | |
3e873174 | 98 | regdata = ((unsigned int) reg) << 24; |
9b4ffa48 JK |
99 | regdata |= ACC_CODEC_CNTL_RD_CMD; |
100 | regdata |= CMD_NEW; | |
101 | ||
102 | cs_writel(cs5535au, ACC_CODEC_CNTL, regdata); | |
1037593c | 103 | wait_till_cmd_acked(cs5535au, 50); |
9b4ffa48 JK |
104 | |
105 | timeout = 50; | |
106 | do { | |
107 | val = cs_readl(cs5535au, ACC_CODEC_STATUS); | |
3e873174 | 108 | if ((val & STS_NEW) && reg == (val >> 24)) |
9b4ffa48 | 109 | break; |
1037593c | 110 | udelay(1); |
9b4ffa48 JK |
111 | } while (--timeout); |
112 | if (!timeout) | |
00980aa9 TI |
113 | dev_err(cs5535au->card->dev, |
114 | "Failure reading codec reg 0x%x, Last value=0x%x\n", | |
115 | reg, val); | |
9b4ffa48 | 116 | |
3e873174 | 117 | return (unsigned short) val; |
9b4ffa48 JK |
118 | } |
119 | ||
66f8df6b TI |
120 | static void snd_cs5535audio_codec_write(struct cs5535audio *cs5535au, |
121 | unsigned short reg, unsigned short val) | |
9b4ffa48 | 122 | { |
3e873174 | 123 | unsigned int regdata; |
9b4ffa48 | 124 | |
3e873174 TI |
125 | regdata = ((unsigned int) reg) << 24; |
126 | regdata |= val; | |
9b4ffa48 JK |
127 | regdata &= CMD_MASK; |
128 | regdata |= CMD_NEW; | |
129 | regdata &= ACC_CODEC_CNTL_WR_CMD; | |
130 | ||
131 | cs_writel(cs5535au, ACC_CODEC_CNTL, regdata); | |
132 | wait_till_cmd_acked(cs5535au, 50); | |
133 | } | |
134 | ||
66f8df6b TI |
135 | static void snd_cs5535audio_ac97_codec_write(struct snd_ac97 *ac97, |
136 | unsigned short reg, unsigned short val) | |
9b4ffa48 | 137 | { |
66f8df6b | 138 | struct cs5535audio *cs5535au = ac97->private_data; |
9b4ffa48 JK |
139 | snd_cs5535audio_codec_write(cs5535au, reg, val); |
140 | } | |
141 | ||
66f8df6b TI |
142 | static unsigned short snd_cs5535audio_ac97_codec_read(struct snd_ac97 *ac97, |
143 | unsigned short reg) | |
9b4ffa48 | 144 | { |
66f8df6b | 145 | struct cs5535audio *cs5535au = ac97->private_data; |
9b4ffa48 JK |
146 | return snd_cs5535audio_codec_read(cs5535au, reg); |
147 | } | |
148 | ||
e23e7a14 | 149 | static int snd_cs5535audio_mixer(struct cs5535audio *cs5535au) |
9b4ffa48 | 150 | { |
66f8df6b TI |
151 | struct snd_card *card = cs5535au->card; |
152 | struct snd_ac97_bus *pbus; | |
153 | struct snd_ac97_template ac97; | |
9b4ffa48 | 154 | int err; |
66f8df6b | 155 | static struct snd_ac97_bus_ops ops = { |
9b4ffa48 JK |
156 | .write = snd_cs5535audio_ac97_codec_write, |
157 | .read = snd_cs5535audio_ac97_codec_read, | |
158 | }; | |
159 | ||
160 | if ((err = snd_ac97_bus(card, 0, &ops, NULL, &pbus)) < 0) | |
161 | return err; | |
162 | ||
163 | memset(&ac97, 0, sizeof(ac97)); | |
b035ce0f JK |
164 | ac97.scaps = AC97_SCAP_AUDIO | AC97_SCAP_SKIP_MODEM |
165 | | AC97_SCAP_POWER_SAVE; | |
9b4ffa48 JK |
166 | ac97.private_data = cs5535au; |
167 | ac97.pci = cs5535au->pci; | |
9b4ffa48 | 168 | |
3556d184 AS |
169 | /* set any OLPC-specific scaps */ |
170 | olpc_prequirks(card, &ac97); | |
171 | ||
9b4ffa48 | 172 | if ((err = snd_ac97_mixer(pbus, &ac97, &cs5535au->ac97)) < 0) { |
00980aa9 | 173 | dev_err(card->dev, "mixer failed\n"); |
9b4ffa48 JK |
174 | return err; |
175 | } | |
176 | ||
9ac25594 JK |
177 | snd_ac97_tune_hardware(cs5535au->ac97, ac97_quirks, ac97_quirk); |
178 | ||
57d4bf6d JK |
179 | err = olpc_quirks(card, cs5535au->ac97); |
180 | if (err < 0) { | |
00980aa9 | 181 | dev_err(card->dev, "olpc quirks failed\n"); |
57d4bf6d JK |
182 | return err; |
183 | } | |
184 | ||
9b4ffa48 JK |
185 | return 0; |
186 | } | |
187 | ||
66f8df6b | 188 | static void process_bm0_irq(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
189 | { |
190 | u8 bm_stat; | |
191 | spin_lock(&cs5535au->reg_lock); | |
192 | bm_stat = cs_readb(cs5535au, ACC_BM0_STATUS); | |
193 | spin_unlock(&cs5535au->reg_lock); | |
194 | if (bm_stat & EOP) { | |
66f8df6b | 195 | struct cs5535audio_dma *dma; |
9b4ffa48 JK |
196 | dma = cs5535au->playback_substream->runtime->private_data; |
197 | snd_pcm_period_elapsed(cs5535au->playback_substream); | |
198 | } else { | |
00980aa9 TI |
199 | dev_err(cs5535au->card->dev, |
200 | "unexpected bm0 irq src, bm_stat=%x\n", | |
201 | bm_stat); | |
9b4ffa48 JK |
202 | } |
203 | } | |
204 | ||
66f8df6b | 205 | static void process_bm1_irq(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
206 | { |
207 | u8 bm_stat; | |
208 | spin_lock(&cs5535au->reg_lock); | |
209 | bm_stat = cs_readb(cs5535au, ACC_BM1_STATUS); | |
210 | spin_unlock(&cs5535au->reg_lock); | |
211 | if (bm_stat & EOP) { | |
66f8df6b | 212 | struct cs5535audio_dma *dma; |
9b4ffa48 JK |
213 | dma = cs5535au->capture_substream->runtime->private_data; |
214 | snd_pcm_period_elapsed(cs5535au->capture_substream); | |
215 | } | |
216 | } | |
217 | ||
7d12e780 | 218 | static irqreturn_t snd_cs5535audio_interrupt(int irq, void *dev_id) |
9b4ffa48 JK |
219 | { |
220 | u16 acc_irq_stat; | |
9b4ffa48 | 221 | unsigned char count; |
66f8df6b | 222 | struct cs5535audio *cs5535au = dev_id; |
9b4ffa48 JK |
223 | |
224 | if (cs5535au == NULL) | |
225 | return IRQ_NONE; | |
226 | ||
227 | acc_irq_stat = cs_readw(cs5535au, ACC_IRQ_STATUS); | |
228 | ||
229 | if (!acc_irq_stat) | |
230 | return IRQ_NONE; | |
4ea24163 | 231 | for (count = 0; count < 4; count++) { |
3e873174 | 232 | if (acc_irq_stat & (1 << count)) { |
9b4ffa48 JK |
233 | switch (count) { |
234 | case IRQ_STS: | |
235 | cs_readl(cs5535au, ACC_GPIO_STATUS); | |
236 | break; | |
237 | case WU_IRQ_STS: | |
238 | cs_readl(cs5535au, ACC_GPIO_STATUS); | |
239 | break; | |
240 | case BM0_IRQ_STS: | |
241 | process_bm0_irq(cs5535au); | |
242 | break; | |
243 | case BM1_IRQ_STS: | |
244 | process_bm1_irq(cs5535au); | |
245 | break; | |
9b4ffa48 | 246 | default: |
00980aa9 TI |
247 | dev_err(cs5535au->card->dev, |
248 | "Unexpected irq src: 0x%x\n", | |
249 | acc_irq_stat); | |
9b4ffa48 JK |
250 | break; |
251 | } | |
252 | } | |
253 | } | |
254 | return IRQ_HANDLED; | |
255 | } | |
256 | ||
66f8df6b | 257 | static int snd_cs5535audio_free(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
258 | { |
259 | synchronize_irq(cs5535au->irq); | |
ec06b2be | 260 | pci_set_power_state(cs5535au->pci, PCI_D3hot); |
9b4ffa48 JK |
261 | |
262 | if (cs5535au->irq >= 0) | |
263 | free_irq(cs5535au->irq, cs5535au); | |
264 | ||
265 | pci_release_regions(cs5535au->pci); | |
266 | pci_disable_device(cs5535au->pci); | |
267 | kfree(cs5535au); | |
268 | return 0; | |
269 | } | |
270 | ||
66f8df6b | 271 | static int snd_cs5535audio_dev_free(struct snd_device *device) |
9b4ffa48 | 272 | { |
66f8df6b | 273 | struct cs5535audio *cs5535au = device->device_data; |
9b4ffa48 JK |
274 | return snd_cs5535audio_free(cs5535au); |
275 | } | |
276 | ||
e23e7a14 BP |
277 | static int snd_cs5535audio_create(struct snd_card *card, |
278 | struct pci_dev *pci, | |
279 | struct cs5535audio **rcs5535au) | |
9b4ffa48 | 280 | { |
66f8df6b | 281 | struct cs5535audio *cs5535au; |
9b4ffa48 JK |
282 | |
283 | int err; | |
66f8df6b | 284 | static struct snd_device_ops ops = { |
9b4ffa48 JK |
285 | .dev_free = snd_cs5535audio_dev_free, |
286 | }; | |
287 | ||
288 | *rcs5535au = NULL; | |
289 | if ((err = pci_enable_device(pci)) < 0) | |
290 | return err; | |
291 | ||
412b979c QL |
292 | if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0 || |
293 | dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) { | |
00980aa9 | 294 | dev_warn(card->dev, "unable to get 32bit dma\n"); |
9b4ffa48 JK |
295 | err = -ENXIO; |
296 | goto pcifail; | |
297 | } | |
298 | ||
299 | cs5535au = kzalloc(sizeof(*cs5535au), GFP_KERNEL); | |
300 | if (cs5535au == NULL) { | |
301 | err = -ENOMEM; | |
302 | goto pcifail; | |
303 | } | |
304 | ||
305 | spin_lock_init(&cs5535au->reg_lock); | |
306 | cs5535au->card = card; | |
307 | cs5535au->pci = pci; | |
308 | cs5535au->irq = -1; | |
309 | ||
310 | if ((err = pci_request_regions(pci, "CS5535 Audio")) < 0) { | |
311 | kfree(cs5535au); | |
312 | goto pcifail; | |
313 | } | |
314 | ||
315 | cs5535au->port = pci_resource_start(pci, 0); | |
316 | ||
317 | if (request_irq(pci->irq, snd_cs5535audio_interrupt, | |
934c2b6d | 318 | IRQF_SHARED, KBUILD_MODNAME, cs5535au)) { |
00980aa9 | 319 | dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); |
9b4ffa48 JK |
320 | err = -EBUSY; |
321 | goto sndfail; | |
322 | } | |
323 | ||
324 | cs5535au->irq = pci->irq; | |
325 | pci_set_master(pci); | |
326 | ||
327 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, | |
66f8df6b | 328 | cs5535au, &ops)) < 0) |
9b4ffa48 JK |
329 | goto sndfail; |
330 | ||
9b4ffa48 JK |
331 | *rcs5535au = cs5535au; |
332 | return 0; | |
333 | ||
334 | sndfail: /* leave the device alive, just kill the snd */ | |
335 | snd_cs5535audio_free(cs5535au); | |
336 | return err; | |
337 | ||
338 | pcifail: | |
339 | pci_disable_device(pci); | |
340 | return err; | |
341 | } | |
342 | ||
e23e7a14 BP |
343 | static int snd_cs5535audio_probe(struct pci_dev *pci, |
344 | const struct pci_device_id *pci_id) | |
9b4ffa48 JK |
345 | { |
346 | static int dev; | |
66f8df6b TI |
347 | struct snd_card *card; |
348 | struct cs5535audio *cs5535au; | |
9b4ffa48 JK |
349 | int err; |
350 | ||
351 | if (dev >= SNDRV_CARDS) | |
352 | return -ENODEV; | |
302e4c2f TI |
353 | if (!enable[dev]) { |
354 | dev++; | |
355 | return -ENOENT; | |
356 | } | |
9b4ffa48 | 357 | |
60c5772b TI |
358 | err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, |
359 | 0, &card); | |
e58de7ba TI |
360 | if (err < 0) |
361 | return err; | |
9b4ffa48 JK |
362 | |
363 | if ((err = snd_cs5535audio_create(card, pci, &cs5535au)) < 0) | |
364 | goto probefail_out; | |
365 | ||
9ac25594 JK |
366 | card->private_data = cs5535au; |
367 | ||
9b4ffa48 JK |
368 | if ((err = snd_cs5535audio_mixer(cs5535au)) < 0) |
369 | goto probefail_out; | |
370 | ||
371 | if ((err = snd_cs5535audio_pcm(cs5535au)) < 0) | |
372 | goto probefail_out; | |
373 | ||
374 | strcpy(card->driver, DRIVER_NAME); | |
375 | ||
376 | strcpy(card->shortname, "CS5535 Audio"); | |
377 | sprintf(card->longname, "%s %s at 0x%lx, irq %i", | |
378 | card->shortname, card->driver, | |
379 | cs5535au->port, cs5535au->irq); | |
380 | ||
381 | if ((err = snd_card_register(card)) < 0) | |
382 | goto probefail_out; | |
383 | ||
384 | pci_set_drvdata(pci, card); | |
385 | dev++; | |
386 | return 0; | |
387 | ||
388 | probefail_out: | |
389 | snd_card_free(card); | |
390 | return err; | |
391 | } | |
392 | ||
e23e7a14 | 393 | static void snd_cs5535audio_remove(struct pci_dev *pci) |
9b4ffa48 | 394 | { |
3c554946 | 395 | olpc_quirks_cleanup(); |
9b4ffa48 | 396 | snd_card_free(pci_get_drvdata(pci)); |
9b4ffa48 JK |
397 | } |
398 | ||
e9f66d9b | 399 | static struct pci_driver cs5535audio_driver = { |
3733e424 | 400 | .name = KBUILD_MODNAME, |
9b4ffa48 JK |
401 | .id_table = snd_cs5535audio_ids, |
402 | .probe = snd_cs5535audio_probe, | |
e23e7a14 | 403 | .remove = snd_cs5535audio_remove, |
c7561cd8 | 404 | #ifdef CONFIG_PM_SLEEP |
68cb2b55 TI |
405 | .driver = { |
406 | .pm = &snd_cs5535audio_pm, | |
407 | }, | |
9ac25594 | 408 | #endif |
9b4ffa48 JK |
409 | }; |
410 | ||
e9f66d9b | 411 | module_pci_driver(cs5535audio_driver); |
9b4ffa48 JK |
412 | |
413 | MODULE_AUTHOR("Jaya Kumar"); | |
414 | MODULE_LICENSE("GPL"); | |
415 | MODULE_DESCRIPTION("CS5535 Audio"); | |
416 | MODULE_SUPPORTED_DEVICE("CS5535 Audio"); |