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[ALSA] cmipci: add msbits constraint for 24-bit format
[linux-2.6-block.git] / sound / pci / bt87x.c
CommitLineData
1da177e4
LT		 1/*
2 * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA
3 *
4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
5 *
6 * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org>
7 *
8 *
9 * This driver is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This driver is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24#include <sound/driver.h>
25#include <linux/init.h>
26#include <linux/interrupt.h>
27#include <linux/pci.h>
28#include <linux/slab.h>
29#include <linux/moduleparam.h>
30#include <linux/bitops.h>
31#include <asm/io.h>
32#include <sound/core.h>
33#include <sound/pcm.h>
34#include <sound/pcm_params.h>
35#include <sound/control.h>
36#include <sound/initval.h>
37
38MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
39MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
40MODULE_LICENSE("GPL");
41MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878},"
42 "{Brooktree,Bt879}}");
43
44static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
45static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
46static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
6581f4e7 47static int digital_rate[SNDRV_CARDS]; /* digital input rate */
1da177e4
LT		 48static int load_all; /* allow to load the non-whitelisted cards */
49
50module_param_array(index, int, NULL, 0444);
51MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
52module_param_array(id, charp, NULL, 0444);
53MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
54module_param_array(enable, bool, NULL, 0444);
55MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
56module_param_array(digital_rate, int, NULL, 0444);
57MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
58module_param(load_all, bool, 0444);
59MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards");
60
61
1da177e4
LT		 62/* register offsets */
63#define REG_INT_STAT 0x100 /* interrupt status */
64#define REG_INT_MASK 0x104 /* interrupt mask */
65#define REG_GPIO_DMA_CTL 0x10c /* audio control */
66#define REG_PACKET_LEN 0x110 /* audio packet lengths */
67#define REG_RISC_STRT_ADD 0x114 /* RISC program start address */
68#define REG_RISC_COUNT 0x120 /* RISC program counter */
69
70/* interrupt bits */
71#define INT_OFLOW (1 << 3) /* audio A/D overflow */
72#define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */
73#define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */
74#define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */
75#define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */
76#define INT_PPERR (1 << 15) /* PCI parity error */
77#define INT_RIPERR (1 << 16) /* RISC instruction parity error */
78#define INT_PABORT (1 << 17) /* PCI master or target abort */
79#define INT_OCERR (1 << 18) /* invalid opcode */
80#define INT_SCERR (1 << 19) /* sync counter overflow */
81#define INT_RISC_EN (1 << 27) /* DMA controller running */
82#define INT_RISCS_SHIFT 28 /* RISC status bits */
83
84/* audio control bits */
85#define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */
86#define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */
87#define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */
88#define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */
89#define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */
90#define CTL_ACAP_EN (1 << 4) /* enable audio capture */
91#define CTL_DA_APP (1 << 5) /* GPIO input */
92#define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */
93#define CTL_DA_IOM_DA (1 << 6) /* digital audio input */
94#define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */
95#define CTL_DA_SDR_MASK (0xf<< 8)
96#define CTL_DA_LMT (1 << 12) /* limit audio data values */
97#define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */
98#define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */
99#define CTL_DA_DPM (1 << 15) /* data packet mode */
100#define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */
101#define CTL_DA_MLB (1 << 21) /* MSB/LSB format */
102#define CTL_DA_LRI (1 << 22) /* left/right indication */
103#define CTL_DA_SCE (1 << 23) /* sample clock edge */
104#define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */
105#define CTL_A_SEL_SFM (1 << 24) /* FM audio input */
106#define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */
107#define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */
108#define CTL_A_SEL_SHIFT 24
109#define CTL_A_SEL_MASK (3 << 24)
110#define CTL_A_PWRDN (1 << 26) /* analog audio power-down */
111#define CTL_A_G2X (1 << 27) /* audio gain boost */
112#define CTL_A_GAIN_SHIFT 28 /* audio input gain */
113#define CTL_A_GAIN_MASK (0xf<<28)
114
115/* RISC instruction opcodes */
116#define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */
117#define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */
118#define RISC_SKIP (0x2 << 28) /* skip FIFO data */
119#define RISC_JUMP (0x7 << 28) /* jump to address */
120#define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */
121
122/* RISC instruction bits */
123#define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */
124#define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */
125#define RISC_SET_STATUS_SHIFT 16 /* set status bits */
126#define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */
127#define RISC_IRQ ( 1 << 24) /* interrupt */
128#define RISC_EOL ( 1 << 26) /* end of line */
129#define RISC_SOL ( 1 << 27) /* start of line */
130
131/* SYNC status bits values */
132#define RISC_SYNC_FM1 0x6
133#define RISC_SYNC_VRO 0xc
134
135#define ANALOG_CLOCK 1792000
136#ifdef CONFIG_SND_BT87X_OVERCLOCK
137#define CLOCK_DIV_MIN 1
138#else
139#define CLOCK_DIV_MIN 4
140#endif
141#define CLOCK_DIV_MAX 15
142
143#define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
144 INT_RIPERR | INT_PABORT | INT_OCERR)
145#define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
146
147/* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
148#define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
149
dcfb4140
TP		 150/* Cards with configuration information */
151enum snd_bt87x_boardid {
152 SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */
153 SND_BT87X_BOARD_ANALOG, /* board with no external A/D */
154 SND_BT87X_BOARD_OSPREY2x0,
155 SND_BT87X_BOARD_OSPREY440,
156 SND_BT87X_BOARD_AVPHONE98,
157};
158
159/* Card configuration */
160struct snd_bt87x_board {
161 int dig_rate; /* Digital input sampling rate */
162 u32 digital_fmt; /* Register settings for digital input */
163 unsigned no_analog:1; /* No analog input */
164 unsigned no_digital:1; /* No digital input */
165};
166
167static const __devinitdata struct snd_bt87x_board snd_bt87x_boards[] = {
168 [SND_BT87X_BOARD_GENERIC] = {
169 .dig_rate = 32000,
170 },
171 [SND_BT87X_BOARD_ANALOG] = {
172 .no_digital = 1,
173 },
174 [SND_BT87X_BOARD_OSPREY2x0] = {
175 .dig_rate = 44100,
176 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
177 },
178 [SND_BT87X_BOARD_OSPREY440] = {
179 .dig_rate = 32000,
180 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
181 .no_analog = 1,
182 },
183 [SND_BT87X_BOARD_AVPHONE98] = {
184 .dig_rate = 48000,
185 },
186};
187
1da177e4 188struct snd_bt87x {
9f362dce 189 struct snd_card *card;
1da177e4 190 struct pci_dev *pci;
dcfb4140 191 struct snd_bt87x_board board;
1da177e4
LT		 192
193 void __iomem *mmio;
194 int irq;
195
1da177e4 196 spinlock_t reg_lock;
64b33619 197 unsigned long opened;
9f362dce 198 struct snd_pcm_substream *substream;
1da177e4
LT		 199
200 struct snd_dma_buffer dma_risc;
201 unsigned int line_bytes;
202 unsigned int lines;
203
204 u32 reg_control;
205 u32 interrupt_mask;
206
207 int current_line;
208
209 int pci_parity_errors;
210};
211
212enum { DEVICE_DIGITAL, DEVICE_ANALOG };
213
9f362dce 214static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
1da177e4
LT		 215{
216 return readl(chip->mmio + reg);
217}
218
9f362dce 219static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
1da177e4
LT		 220{
221 writel(value, chip->mmio + reg);
222}
223
9f362dce 224static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
1da177e4
LT		 225 unsigned int periods, unsigned int period_bytes)
226{
227 struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
228 unsigned int i, offset;
229 u32 *risc;
230
231 if (chip->dma_risc.area == NULL) {
232 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
233 PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)
234 return -ENOMEM;
235 }
236 risc = (u32 *)chip->dma_risc.area;
237 offset = 0;
238 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
239 *risc++ = cpu_to_le32(0);
240 for (i = 0; i < periods; ++i) {
241 u32 rest;
242
243 rest = period_bytes;
244 do {
245 u32 cmd, len;
246
247 len = PAGE_SIZE - (offset % PAGE_SIZE);
248 if (len > rest)
249 len = rest;
250 cmd = RISC_WRITE | len;
251 if (rest == period_bytes) {
252 u32 block = i * 16 / periods;
253 cmd |= RISC_SOL;
254 cmd |= block << RISC_SET_STATUS_SHIFT;
255 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
256 }
257 if (len == rest)
258 cmd |= RISC_EOL | RISC_IRQ;
259 *risc++ = cpu_to_le32(cmd);
260 *risc++ = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, offset));
261 offset += len;
262 rest -= len;
263 } while (rest > 0);
264 }
265 *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);
266 *risc++ = cpu_to_le32(0);
267 *risc++ = cpu_to_le32(RISC_JUMP);
268 *risc++ = cpu_to_le32(chip->dma_risc.addr);
269 chip->line_bytes = period_bytes;
270 chip->lines = periods;
271 return 0;
272}
273
9f362dce 274static void snd_bt87x_free_risc(struct snd_bt87x *chip)
1da177e4
LT		 275{
276 if (chip->dma_risc.area) {
277 snd_dma_free_pages(&chip->dma_risc);
278 chip->dma_risc.area = NULL;
279 }
280}
281
9f362dce 282static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status)
1da177e4
LT		 283{
284 u16 pci_status;
285
286 pci_read_config_word(chip->pci, PCI_STATUS, &pci_status);
287 pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT |
288 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT |
289 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY;
290 pci_write_config_word(chip->pci, PCI_STATUS, pci_status);
291 if (pci_status != PCI_STATUS_DETECTED_PARITY)
292 snd_printk(KERN_ERR "Aieee - PCI error! status %#08x, PCI status %#04x\n",
293 status & ERROR_INTERRUPTS, pci_status);
294 else {
295 snd_printk(KERN_ERR "Aieee - PCI parity error detected!\n");
296 /* error 'handling' similar to aic7xxx_pci.c: */
297 chip->pci_parity_errors++;
298 if (chip->pci_parity_errors > 20) {
299 snd_printk(KERN_ERR "Too many PCI parity errors observed.\n");
300 snd_printk(KERN_ERR "Some device on this bus is generating bad parity.\n");
301 snd_printk(KERN_ERR "This is an error *observed by*, not *generated by*, this card.\n");
302 snd_printk(KERN_ERR "PCI parity error checking has been disabled.\n");
303 chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
304 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
305 }
306 }
307}
308
7d12e780 309static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
1da177e4 310{
9f362dce 311 struct snd_bt87x *chip = dev_id;
1da177e4
LT		 312 unsigned int status, irq_status;
313
314 status = snd_bt87x_readl(chip, REG_INT_STAT);
315 irq_status = status & chip->interrupt_mask;
316 if (!irq_status)
317 return IRQ_NONE;
318 snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
319
320 if (irq_status & ERROR_INTERRUPTS) {
321 if (irq_status & (INT_FBUS | INT_FTRGT))
322 snd_printk(KERN_WARNING "FIFO overrun, status %#08x\n", status);
323 if (irq_status & INT_OCERR)
324 snd_printk(KERN_ERR "internal RISC error, status %#08x\n", status);
325 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
326 snd_bt87x_pci_error(chip, irq_status);
327 }
328 if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
329 int current_block, irq_block;
330
331 /* assume that exactly one line has been recorded */
332 chip->current_line = (chip->current_line + 1) % chip->lines;
333 /* but check if some interrupts have been skipped */
334 current_block = chip->current_line * 16 / chip->lines;
335 irq_block = status >> INT_RISCS_SHIFT;
336 if (current_block != irq_block)
337 chip->current_line = (irq_block * chip->lines + 15) / 16;
338
339 snd_pcm_period_elapsed(chip->substream);
340 }
341 return IRQ_HANDLED;
342}
343
9f362dce 344static struct snd_pcm_hardware snd_bt87x_digital_hw = {
1da177e4
LT		 345 .info = SNDRV_PCM_INFO_MMAP |
346 SNDRV_PCM_INFO_INTERLEAVED |
347 SNDRV_PCM_INFO_BLOCK_TRANSFER |
348 SNDRV_PCM_INFO_MMAP_VALID,
349 .formats = SNDRV_PCM_FMTBIT_S16_LE,
350 .rates = 0, /* set at runtime */
351 .channels_min = 2,
352 .channels_max = 2,
353 .buffer_bytes_max = 255 * 4092,
354 .period_bytes_min = 32,
355 .period_bytes_max = 4092,
356 .periods_min = 2,
357 .periods_max = 255,
358};
359
9f362dce 360static struct snd_pcm_hardware snd_bt87x_analog_hw = {
1da177e4
LT		 361 .info = SNDRV_PCM_INFO_MMAP |
362 SNDRV_PCM_INFO_INTERLEAVED |
363 SNDRV_PCM_INFO_BLOCK_TRANSFER |
364 SNDRV_PCM_INFO_MMAP_VALID,
365 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
366 .rates = SNDRV_PCM_RATE_KNOT,
367 .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
368 .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
369 .channels_min = 1,
370 .channels_max = 1,
371 .buffer_bytes_max = 255 * 4092,
372 .period_bytes_min = 32,
373 .period_bytes_max = 4092,
374 .periods_min = 2,
375 .periods_max = 255,
376};
377
9f362dce 378static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
1da177e4 379{
1da177e4
LT		 380 chip->reg_control |= CTL_DA_IOM_DA;
381 runtime->hw = snd_bt87x_digital_hw;
dcfb4140
TP		 382 runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
383 runtime->hw.rate_min = chip->board.dig_rate;
384 runtime->hw.rate_max = chip->board.dig_rate;
1da177e4
LT		 385 return 0;
386}
387
9f362dce 388static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
1da177e4 389{
9f362dce 390 static struct snd_ratnum analog_clock = {
1da177e4
LT		 391 .num = ANALOG_CLOCK,
392 .den_min = CLOCK_DIV_MIN,
393 .den_max = CLOCK_DIV_MAX,
394 .den_step = 1
395 };
9f362dce 396 static struct snd_pcm_hw_constraint_ratnums constraint_rates = {
1da177e4
LT		 397 .nrats = 1,
398 .rats = &analog_clock
399 };
400
401 chip->reg_control &= ~CTL_DA_IOM_DA;
402 runtime->hw = snd_bt87x_analog_hw;
403 return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
404 &constraint_rates);
405}
406
9f362dce 407static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
1da177e4 408{
9f362dce
TI		 409 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
410 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 411 int err;
412
413 if (test_and_set_bit(0, &chip->opened))
414 return -EBUSY;
415
416 if (substream->pcm->device == DEVICE_DIGITAL)
417 err = snd_bt87x_set_digital_hw(chip, runtime);
418 else
419 err = snd_bt87x_set_analog_hw(chip, runtime);
420 if (err < 0)
421 goto _error;
422
423 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
424 if (err < 0)
425 goto _error;
426
427 chip->substream = substream;
428 return 0;
429
430_error:
431 clear_bit(0, &chip->opened);
432 smp_mb__after_clear_bit();
433 return err;
434}
435
9f362dce 436static int snd_bt87x_close(struct snd_pcm_substream *substream)
1da177e4 437{
9f362dce 438 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 439
440 chip->substream = NULL;
441 clear_bit(0, &chip->opened);
442 smp_mb__after_clear_bit();
443 return 0;
444}
445
9f362dce
TI		 446static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
447 struct snd_pcm_hw_params *hw_params)
1da177e4 448{
9f362dce 449 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 450 int err;
451
452 err = snd_pcm_lib_malloc_pages(substream,
453 params_buffer_bytes(hw_params));
454 if (err < 0)
455 return err;
456 return snd_bt87x_create_risc(chip, substream,
457 params_periods(hw_params),
458 params_period_bytes(hw_params));
459}
460
9f362dce 461static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
1da177e4 462{
9f362dce 463 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 464
465 snd_bt87x_free_risc(chip);
466 snd_pcm_lib_free_pages(substream);
467 return 0;
468}
469
9f362dce 470static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
1da177e4 471{
9f362dce
TI		 472 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
473 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 474 int decimation;
475
476 spin_lock_irq(&chip->reg_lock);
477 chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
478 decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
479 chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
480 if (runtime->format == SNDRV_PCM_FORMAT_S8)
481 chip->reg_control |= CTL_DA_SBR;
482 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
483 spin_unlock_irq(&chip->reg_lock);
484 return 0;
485}
486
9f362dce 487static int snd_bt87x_start(struct snd_bt87x *chip)
1da177e4
LT		 488{
489 spin_lock(&chip->reg_lock);
490 chip->current_line = 0;
491 chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
492 snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
493 snd_bt87x_writel(chip, REG_PACKET_LEN,
494 chip->line_bytes | (chip->lines << 16));
495 snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
496 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
497 spin_unlock(&chip->reg_lock);
498 return 0;
499}
500
9f362dce 501static int snd_bt87x_stop(struct snd_bt87x *chip)
1da177e4
LT		 502{
503 spin_lock(&chip->reg_lock);
504 chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
505 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
506 snd_bt87x_writel(chip, REG_INT_MASK, 0);
507 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
508 spin_unlock(&chip->reg_lock);
509 return 0;
510}
511
9f362dce 512static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
1da177e4 513{
9f362dce 514 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 515
516 switch (cmd) {
517 case SNDRV_PCM_TRIGGER_START:
518 return snd_bt87x_start(chip);
519 case SNDRV_PCM_TRIGGER_STOP:
520 return snd_bt87x_stop(chip);
521 default:
522 return -EINVAL;
523 }
524}
525
9f362dce 526static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
1da177e4 527{
9f362dce
TI		 528 struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
529 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 530
531 return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
532}
533
9f362dce 534static struct snd_pcm_ops snd_bt87x_pcm_ops = {
1da177e4
LT		 535 .open = snd_bt87x_pcm_open,
536 .close = snd_bt87x_close,
537 .ioctl = snd_pcm_lib_ioctl,
538 .hw_params = snd_bt87x_hw_params,
539 .hw_free = snd_bt87x_hw_free,
540 .prepare = snd_bt87x_prepare,
541 .trigger = snd_bt87x_trigger,
542 .pointer = snd_bt87x_pointer,
543 .page = snd_pcm_sgbuf_ops_page,
544};
545
9f362dce
TI		 546static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
547 struct snd_ctl_elem_info *info)
1da177e4
LT		 548{
549 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
550 info->count = 1;
551 info->value.integer.min = 0;
552 info->value.integer.max = 15;
553 return 0;
554}
555
9f362dce
TI		 556static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
557 struct snd_ctl_elem_value *value)
1da177e4 558{
9f362dce 559 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 560
561 value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
562 return 0;
563}
564
9f362dce
TI		 565static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
566 struct snd_ctl_elem_value *value)
1da177e4 567{
9f362dce 568 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 569 u32 old_control;
570 int changed;
571
572 spin_lock_irq(&chip->reg_lock);
573 old_control = chip->reg_control;
574 chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
575 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
576 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
577 changed = old_control != chip->reg_control;
578 spin_unlock_irq(&chip->reg_lock);
579 return changed;
580}
581
9f362dce 582static struct snd_kcontrol_new snd_bt87x_capture_volume = {
1da177e4
LT		 583 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
584 .name = "Capture Volume",
585 .info = snd_bt87x_capture_volume_info,
586 .get = snd_bt87x_capture_volume_get,
587 .put = snd_bt87x_capture_volume_put,
588};
589
a5ce8890 590#define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info
1da177e4 591
9f362dce
TI		 592static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
593 struct snd_ctl_elem_value *value)
1da177e4 594{
9f362dce 595 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 596
597 value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
598 return 0;
599}
600
9f362dce
TI		 601static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
602 struct snd_ctl_elem_value *value)
1da177e4 603{
9f362dce 604 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 605 u32 old_control;
606 int changed;
607
608 spin_lock_irq(&chip->reg_lock);
609 old_control = chip->reg_control;
610 chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
611 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
612 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
613 changed = chip->reg_control != old_control;
614 spin_unlock_irq(&chip->reg_lock);
615 return changed;
616}
617
9f362dce 618static struct snd_kcontrol_new snd_bt87x_capture_boost = {
1da177e4
LT		 619 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
620 .name = "Capture Boost",
621 .info = snd_bt87x_capture_boost_info,
622 .get = snd_bt87x_capture_boost_get,
623 .put = snd_bt87x_capture_boost_put,
624};
625
9f362dce
TI		 626static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
627 struct snd_ctl_elem_info *info)
1da177e4
LT		 628{
629 static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"};
630
631 info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
632 info->count = 1;
633 info->value.enumerated.items = 3;
634 if (info->value.enumerated.item > 2)
635 info->value.enumerated.item = 2;
636 strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]);
637 return 0;
638}
639
9f362dce
TI		 640static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
641 struct snd_ctl_elem_value *value)
1da177e4 642{
9f362dce 643 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 644
645 value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
646 return 0;
647}
648
9f362dce
TI		 649static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
650 struct snd_ctl_elem_value *value)
1da177e4 651{
9f362dce 652 struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 653 u32 old_control;
654 int changed;
655
656 spin_lock_irq(&chip->reg_lock);
657 old_control = chip->reg_control;
658 chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
659 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
660 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
661 changed = chip->reg_control != old_control;
662 spin_unlock_irq(&chip->reg_lock);
663 return changed;
664}
665
9f362dce 666static struct snd_kcontrol_new snd_bt87x_capture_source = {
1da177e4
LT		 667 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
668 .name = "Capture Source",
669 .info = snd_bt87x_capture_source_info,
670 .get = snd_bt87x_capture_source_get,
671 .put = snd_bt87x_capture_source_put,
672};
673
9f362dce 674static int snd_bt87x_free(struct snd_bt87x *chip)
1da177e4
LT		 675{
676 if (chip->mmio) {
677 snd_bt87x_stop(chip);
678 if (chip->irq >= 0)
679 synchronize_irq(chip->irq);
680
681 iounmap(chip->mmio);
682 }
683 if (chip->irq >= 0)
684 free_irq(chip->irq, chip);
685 pci_release_regions(chip->pci);
686 pci_disable_device(chip->pci);
687 kfree(chip);
688 return 0;
689}
690
9f362dce 691static int snd_bt87x_dev_free(struct snd_device *device)
1da177e4 692{
9f362dce 693 struct snd_bt87x *chip = device->device_data;
1da177e4
LT		 694 return snd_bt87x_free(chip);
695}
696
9f362dce 697static int __devinit snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
1da177e4
LT		 698{
699 int err;
9f362dce 700 struct snd_pcm *pcm;
1da177e4
LT		 701
702 err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
703 if (err < 0)
704 return err;
705 pcm->private_data = chip;
706 strcpy(pcm->name, name);
707 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
708 return snd_pcm_lib_preallocate_pages_for_all(pcm,
709 SNDRV_DMA_TYPE_DEV_SG,
710 snd_dma_pci_data(chip->pci),
711 128 * 1024,
7ab39926 712 ALIGN(255 * 4092, 1024));
1da177e4
LT		 713}
714
9f362dce 715static int __devinit snd_bt87x_create(struct snd_card *card,
1da177e4 716 struct pci_dev *pci,
9f362dce 717 struct snd_bt87x **rchip)
1da177e4 718{
9f362dce 719 struct snd_bt87x *chip;
1da177e4 720 int err;
9f362dce 721 static struct snd_device_ops ops = {
1da177e4
LT		 722 .dev_free = snd_bt87x_dev_free
723 };
724
725 *rchip = NULL;
726
727 err = pci_enable_device(pci);
728 if (err < 0)
729 return err;
730
e560d8d8 731 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1da177e4
LT		 732 if (!chip) {
733 pci_disable_device(pci);
734 return -ENOMEM;
735 }
736 chip->card = card;
737 chip->pci = pci;
738 chip->irq = -1;
739 spin_lock_init(&chip->reg_lock);
740
741 if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
742 kfree(chip);
743 pci_disable_device(pci);
744 return err;
745 }
746 chip->mmio = ioremap_nocache(pci_resource_start(pci, 0),
747 pci_resource_len(pci, 0));
748 if (!chip->mmio) {
1da177e4 749 snd_printk(KERN_ERR "cannot remap io memory\n");
dcfb4140
TP		 750 err = -ENOMEM;
751 goto fail;
1da177e4
LT		 752 }
753
754 chip->reg_control = CTL_DA_ES2 | CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
755 chip->interrupt_mask = MY_INTERRUPTS;
756 snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
757 snd_bt87x_writel(chip, REG_INT_MASK, 0);
758 snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
759
dcfb4140
TP		 760 err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
761 "Bt87x audio", chip);
762 if (err < 0) {
763 snd_printk(KERN_ERR "cannot grab irq %d\n", pci->irq);
764 goto fail;
1da177e4
LT		 765 }
766 chip->irq = pci->irq;
767 pci_set_master(pci);
768 synchronize_irq(chip->irq);
769
770 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
dcfb4140
TP		 771 if (err < 0)
772 goto fail;
773
1da177e4
LT		 774 snd_card_set_dev(card, &pci->dev);
775 *rchip = chip;
776 return 0;
dcfb4140
TP		 777
778fail:
779 snd_bt87x_free(chip);
780 return err;
1da177e4
LT		 781}
782
dcfb4140 783#define BT_DEVICE(chip, subvend, subdev, id) \
1da177e4 784 { .vendor = PCI_VENDOR_ID_BROOKTREE, \
4153812f 785 .device = chip, \
1da177e4 786 .subvendor = subvend, .subdevice = subdev, \
dcfb4140
TP		 787 .driver_data = SND_BT87X_BOARD_ ## id }
788/* driver_data is the card id for that device */
1da177e4 789
f40b6890 790static struct pci_device_id snd_bt87x_ids[] = {
4153812f 791 /* Hauppauge WinTV series */
dcfb4140 792 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
4153812f 793 /* Hauppauge WinTV series */
dcfb4140 794 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
4153812f 795 /* Viewcast Osprey 200 */
dcfb4140 796 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
cf784d55 797 /* Viewcast Osprey 440 (rate is configurable via gpio) */
dcfb4140 798 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
76e63067 799 /* ATI TV-Wonder */
dcfb4140 800 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
abf58f09 801 /* Leadtek Winfast tv 2000xp delux */
dcfb4140 802 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
29463dfe 803 /* Voodoo TV 200 */
dcfb4140 804 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
29463dfe 805 /* AVerMedia Studio No. 103, 203, ...? */
dcfb4140 806 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
abaeeb59 807 /* Prolink PixelView PV-M4900 */
dcfb4140 808 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
abaeeb59 809 /* Pinnacle Studio PCTV rave */
dcfb4140 810 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
1da177e4
LT		 811 { }
812};
813MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
814
815/* cards known not to have audio
816 * (DVB cards use the audio function to transfer MPEG data) */
817static struct {
818 unsigned short subvendor, subdevice;
819} blacklist[] __devinitdata = {
820 {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
0110f50b 821 {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
1da177e4
LT		 822 {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
823 {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
824 {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
825 {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
0110f50b 826 {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
1da177e4 827 {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
19790db0 828 {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
1da177e4 829 {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
0110f50b 830 {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
1da177e4
LT		 831};
832
b4634484
GK		 833static struct pci_driver driver;
834
dcfb4140 835/* return the id of the card, or a negative value if it's blacklisted */
1da177e4
LT		 836static int __devinit snd_bt87x_detect_card(struct pci_dev *pci)
837{
838 int i;
839 const struct pci_device_id *supported;
840
159f597a 841 supported = pci_match_device(&driver, pci);
54c63cfc 842 if (supported && supported->driver_data > 0)
1da177e4
LT		 843 return supported->driver_data;
844
845 for (i = 0; i < ARRAY_SIZE(blacklist); ++i)
846 if (blacklist[i].subvendor == pci->subsystem_vendor &&
847 blacklist[i].subdevice == pci->subsystem_device) {
abf58f09
JK		 848 snd_printdd(KERN_INFO "card %#04x-%#04x:%#04x has no audio\n",
849 pci->device, pci->subsystem_vendor, pci->subsystem_device);
1da177e4
LT		 850 return -EBUSY;
851 }
852
dcfb4140
TP		 853 snd_printk(KERN_INFO "unknown card %#04x-%#04x:%#04x\n",
854 pci->device, pci->subsystem_vendor, pci->subsystem_device);
1da177e4
LT		 855 snd_printk(KERN_DEBUG "please mail id, board name, and, "
856 "if it works, the correct digital_rate option to "
4505179c 857 "<alsa-devel@alsa-project.org>\n");
dcfb4140 858 return SND_BT87X_BOARD_GENERIC;
1da177e4
LT		 859}
860
861static int __devinit snd_bt87x_probe(struct pci_dev *pci,
862 const struct pci_device_id *pci_id)
863{
864 static int dev;
9f362dce
TI		 865 struct snd_card *card;
866 struct snd_bt87x *chip;
dcfb4140
TP		 867 int err;
868 enum snd_bt87x_boardid boardid;
1da177e4 869
dcfb4140
TP		 870 if (!pci_id->driver_data) {
871 err = snd_bt87x_detect_card(pci);
872 if (err < 0)
1da177e4 873 return -ENODEV;
dcfb4140
TP		 874 boardid = err;
875 } else
876 boardid = pci_id->driver_data;
1da177e4
LT		 877
878 if (dev >= SNDRV_CARDS)
879 return -ENODEV;
880 if (!enable[dev]) {
881 ++dev;
882 return -ENOENT;
883 }
884
885 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
886 if (!card)
887 return -ENOMEM;
888
889 err = snd_bt87x_create(card, pci, &chip);
890 if (err < 0)
891 goto _error;
892
dcfb4140 893 memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
1da177e4 894
dcfb4140
TP		 895 if (!chip->board.no_digital) {
896 if (digital_rate[dev] > 0)
897 chip->board.dig_rate = digital_rate[dev];
1da177e4 898
dcfb4140
TP		 899 chip->reg_control |= chip->board.digital_fmt;
900
901 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
902 if (err < 0)
903 goto _error;
904 }
905 if (!chip->board.no_analog) {
906 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
907 if (err < 0)
908 goto _error;
909 err = snd_ctl_add(card, snd_ctl_new1(
910 &snd_bt87x_capture_volume, chip));
911 if (err < 0)
912 goto _error;
913 err = snd_ctl_add(card, snd_ctl_new1(
914 &snd_bt87x_capture_boost, chip));
915 if (err < 0)
916 goto _error;
917 err = snd_ctl_add(card, snd_ctl_new1(
918 &snd_bt87x_capture_source, chip));
919 if (err < 0)
920 goto _error;
921 }
922 snd_printk(KERN_INFO "bt87x%d: Using board %d, %sanalog, %sdigital "
923 "(rate %d Hz)\n", dev, boardid,
924 chip->board.no_analog ? "no " : "",
925 chip->board.no_digital ? "no " : "", chip->board.dig_rate);
1da177e4
LT		 926
927 strcpy(card->driver, "Bt87x");
928 sprintf(card->shortname, "Brooktree Bt%x", pci->device);
aa0a2ddc
GKH		 929 sprintf(card->longname, "%s at %#llx, irq %i",
930 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
931 chip->irq);
1da177e4
LT		 932 strcpy(card->mixername, "Bt87x");
933
934 err = snd_card_register(card);
935 if (err < 0)
936 goto _error;
937
938 pci_set_drvdata(pci, card);
939 ++dev;
940 return 0;
941
942_error:
943 snd_card_free(card);
944 return err;
945}
946
947static void __devexit snd_bt87x_remove(struct pci_dev *pci)
948{
949 snd_card_free(pci_get_drvdata(pci));
950 pci_set_drvdata(pci, NULL);
951}
952
953/* default entries for all Bt87x cards - it's not exported */
954/* driver_data is set to 0 to call detection */
396c9b92 955static struct pci_device_id snd_bt87x_default_ids[] __devinitdata = {
dcfb4140
TP		 956 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, GENERIC),
957 BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, GENERIC),
1da177e4
LT		 958 { }
959};
960
961static struct pci_driver driver = {
962 .name = "Bt87x",
963 .id_table = snd_bt87x_ids,
964 .probe = snd_bt87x_probe,
965 .remove = __devexit_p(snd_bt87x_remove),
966};
967
968static int __init alsa_card_bt87x_init(void)
969{
970 if (load_all)
971 driver.id_table = snd_bt87x_default_ids;
01d25d46 972 return pci_register_driver(&driver);
1da177e4
LT		 973}
974
975static void __exit alsa_card_bt87x_exit(void)
976{
977 pci_unregister_driver(&driver);
978}
979
980module_init(alsa_card_bt87x_init)
981module_exit(alsa_card_bt87x_exit)
Linux 6.x block layer and io_uring tree(s)