1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA |
4 | * |
5 | * Copyright (c) Clemens Ladisch <clemens@ladisch.de> |
6 | * |
7 | * based on btaudio.c by Gerd Knorr <kraxel@bytesex.org> |
8 | */ |
9 | |
10 | #include <linux/init.h> |
11 | #include <linux/interrupt.h> |
12 | #include <linux/pci.h> |
13 | #include <linux/slab.h> |
14 | #include <linux/module.h> |
15 | #include <linux/bitops.h> |
16 | #include <linux/io.h> |
17 | #include <sound/core.h> |
18 | #include <sound/pcm.h> |
19 | #include <sound/pcm_params.h> |
20 | #include <sound/control.h> |
21 | #include <sound/initval.h> |
22 | |
23 | MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>" ); |
24 | MODULE_DESCRIPTION("Brooktree Bt87x audio driver" ); |
25 | MODULE_LICENSE("GPL" ); |
26 | |
27 | static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */ |
28 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
29 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ |
30 | static int digital_rate[SNDRV_CARDS]; /* digital input rate */ |
31 | static bool load_all; /* allow to load cards not the allowlist */ |
32 | |
33 | module_param_array(index, int, NULL, 0444); |
34 | MODULE_PARM_DESC(index, "Index value for Bt87x soundcard" ); |
35 | module_param_array(id, charp, NULL, 0444); |
36 | MODULE_PARM_DESC(id, "ID string for Bt87x soundcard" ); |
37 | module_param_array(enable, bool, NULL, 0444); |
38 | MODULE_PARM_DESC(enable, "Enable Bt87x soundcard" ); |
39 | module_param_array(digital_rate, int, NULL, 0444); |
40 | MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard" ); |
41 | module_param(load_all, bool, 0444); |
42 | MODULE_PARM_DESC(load_all, "Allow to load cards not on the allowlist" ); |
43 | |
44 | |
45 | /* register offsets */ |
46 | #define REG_INT_STAT 0x100 /* interrupt status */ |
47 | #define REG_INT_MASK 0x104 /* interrupt mask */ |
48 | #define REG_GPIO_DMA_CTL 0x10c /* audio control */ |
49 | #define REG_PACKET_LEN 0x110 /* audio packet lengths */ |
50 | #define REG_RISC_STRT_ADD 0x114 /* RISC program start address */ |
51 | #define REG_RISC_COUNT 0x120 /* RISC program counter */ |
52 | |
53 | /* interrupt bits */ |
54 | #define INT_OFLOW (1 << 3) /* audio A/D overflow */ |
55 | #define INT_RISCI (1 << 11) /* RISC instruction IRQ bit set */ |
56 | #define INT_FBUS (1 << 12) /* FIFO overrun due to bus access latency */ |
57 | #define INT_FTRGT (1 << 13) /* FIFO overrun due to target latency */ |
58 | #define INT_FDSR (1 << 14) /* FIFO data stream resynchronization */ |
59 | #define INT_PPERR (1 << 15) /* PCI parity error */ |
60 | #define INT_RIPERR (1 << 16) /* RISC instruction parity error */ |
61 | #define INT_PABORT (1 << 17) /* PCI master or target abort */ |
62 | #define INT_OCERR (1 << 18) /* invalid opcode */ |
63 | #define INT_SCERR (1 << 19) /* sync counter overflow */ |
64 | #define INT_RISC_EN (1 << 27) /* DMA controller running */ |
65 | #define INT_RISCS_SHIFT 28 /* RISC status bits */ |
66 | |
67 | /* audio control bits */ |
68 | #define CTL_FIFO_ENABLE (1 << 0) /* enable audio data FIFO */ |
69 | #define CTL_RISC_ENABLE (1 << 1) /* enable audio DMA controller */ |
70 | #define CTL_PKTP_4 (0 << 2) /* packet mode FIFO trigger point - 4 DWORDs */ |
71 | #define CTL_PKTP_8 (1 << 2) /* 8 DWORDs */ |
72 | #define CTL_PKTP_16 (2 << 2) /* 16 DWORDs */ |
73 | #define CTL_ACAP_EN (1 << 4) /* enable audio capture */ |
74 | #define CTL_DA_APP (1 << 5) /* GPIO input */ |
75 | #define CTL_DA_IOM_AFE (0 << 6) /* audio A/D input */ |
76 | #define CTL_DA_IOM_DA (1 << 6) /* digital audio input */ |
77 | #define CTL_DA_SDR_SHIFT 8 /* DDF first stage decimation rate */ |
78 | #define CTL_DA_SDR_MASK (0xf<< 8) |
79 | #define CTL_DA_LMT (1 << 12) /* limit audio data values */ |
80 | #define CTL_DA_ES2 (1 << 13) /* enable DDF stage 2 */ |
81 | #define CTL_DA_SBR (1 << 14) /* samples rounded to 8 bits */ |
82 | #define CTL_DA_DPM (1 << 15) /* data packet mode */ |
83 | #define CTL_DA_LRD_SHIFT 16 /* ALRCK delay */ |
84 | #define CTL_DA_MLB (1 << 21) /* MSB/LSB format */ |
85 | #define CTL_DA_LRI (1 << 22) /* left/right indication */ |
86 | #define CTL_DA_SCE (1 << 23) /* sample clock edge */ |
87 | #define CTL_A_SEL_STV (0 << 24) /* TV tuner audio input */ |
88 | #define CTL_A_SEL_SFM (1 << 24) /* FM audio input */ |
89 | #define CTL_A_SEL_SML (2 << 24) /* mic/line audio input */ |
90 | #define CTL_A_SEL_SMXC (3 << 24) /* MUX bypass */ |
91 | #define CTL_A_SEL_SHIFT 24 |
92 | #define CTL_A_SEL_MASK (3 << 24) |
93 | #define CTL_A_PWRDN (1 << 26) /* analog audio power-down */ |
94 | #define CTL_A_G2X (1 << 27) /* audio gain boost */ |
95 | #define CTL_A_GAIN_SHIFT 28 /* audio input gain */ |
96 | #define CTL_A_GAIN_MASK (0xf<<28) |
97 | |
98 | /* RISC instruction opcodes */ |
99 | #define RISC_WRITE (0x1 << 28) /* write FIFO data to memory at address */ |
100 | #define RISC_WRITEC (0x5 << 28) /* write FIFO data to memory at current address */ |
101 | #define RISC_SKIP (0x2 << 28) /* skip FIFO data */ |
102 | #define RISC_JUMP (0x7 << 28) /* jump to address */ |
103 | #define RISC_SYNC (0x8 << 28) /* synchronize with FIFO */ |
104 | |
105 | /* RISC instruction bits */ |
106 | #define RISC_BYTES_ENABLE (0xf << 12) /* byte enable bits */ |
107 | #define RISC_RESYNC ( 1 << 15) /* disable FDSR errors */ |
108 | #define RISC_SET_STATUS_SHIFT 16 /* set status bits */ |
109 | #define RISC_RESET_STATUS_SHIFT 20 /* clear status bits */ |
110 | #define RISC_IRQ ( 1 << 24) /* interrupt */ |
111 | #define RISC_EOL ( 1 << 26) /* end of line */ |
112 | #define RISC_SOL ( 1 << 27) /* start of line */ |
113 | |
114 | /* SYNC status bits values */ |
115 | #define RISC_SYNC_FM1 0x6 |
116 | #define RISC_SYNC_VRO 0xc |
117 | |
118 | #define ANALOG_CLOCK 1792000 |
119 | #ifdef CONFIG_SND_BT87X_OVERCLOCK |
120 | #define CLOCK_DIV_MIN 1 |
121 | #else |
122 | #define CLOCK_DIV_MIN 4 |
123 | #endif |
124 | #define CLOCK_DIV_MAX 15 |
125 | |
126 | #define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \ |
127 | INT_RIPERR | INT_PABORT | INT_OCERR) |
128 | #define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS) |
129 | |
130 | /* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */ |
131 | #define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8) |
132 | |
133 | /* Cards with configuration information */ |
134 | enum snd_bt87x_boardid { |
135 | SND_BT87X_BOARD_UNKNOWN, |
136 | SND_BT87X_BOARD_GENERIC, /* both an & dig interfaces, 32kHz */ |
137 | SND_BT87X_BOARD_ANALOG, /* board with no external A/D */ |
138 | SND_BT87X_BOARD_OSPREY2x0, |
139 | SND_BT87X_BOARD_OSPREY440, |
140 | SND_BT87X_BOARD_AVPHONE98, |
141 | }; |
142 | |
143 | /* Card configuration */ |
144 | struct snd_bt87x_board { |
145 | int dig_rate; /* Digital input sampling rate */ |
146 | u32 digital_fmt; /* Register settings for digital input */ |
147 | unsigned no_analog:1; /* No analog input */ |
148 | unsigned no_digital:1; /* No digital input */ |
149 | }; |
150 | |
151 | static const struct snd_bt87x_board snd_bt87x_boards[] = { |
152 | [SND_BT87X_BOARD_UNKNOWN] = { |
153 | .dig_rate = 32000, /* just a guess */ |
154 | }, |
155 | [SND_BT87X_BOARD_GENERIC] = { |
156 | .dig_rate = 32000, |
157 | }, |
158 | [SND_BT87X_BOARD_ANALOG] = { |
159 | .no_digital = 1, |
160 | }, |
161 | [SND_BT87X_BOARD_OSPREY2x0] = { |
162 | .dig_rate = 44100, |
163 | .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT), |
164 | }, |
165 | [SND_BT87X_BOARD_OSPREY440] = { |
166 | .dig_rate = 32000, |
167 | .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT), |
168 | .no_analog = 1, |
169 | }, |
170 | [SND_BT87X_BOARD_AVPHONE98] = { |
171 | .dig_rate = 48000, |
172 | }, |
173 | }; |
174 | |
175 | struct snd_bt87x { |
176 | struct snd_card *card; |
177 | struct pci_dev *pci; |
178 | struct snd_bt87x_board board; |
179 | |
180 | void __iomem *mmio; |
181 | int irq; |
182 | |
183 | spinlock_t reg_lock; |
184 | unsigned long opened; |
185 | struct snd_pcm_substream *substream; |
186 | |
187 | struct snd_dma_buffer dma_risc; |
188 | unsigned int line_bytes; |
189 | unsigned int lines; |
190 | |
191 | u32 reg_control; |
192 | u32 interrupt_mask; |
193 | |
194 | int current_line; |
195 | |
196 | int pci_parity_errors; |
197 | }; |
198 | |
199 | enum { DEVICE_DIGITAL, DEVICE_ANALOG }; |
200 | |
201 | static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg) |
202 | { |
203 | return readl(addr: chip->mmio + reg); |
204 | } |
205 | |
206 | static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value) |
207 | { |
208 | writel(val: value, addr: chip->mmio + reg); |
209 | } |
210 | |
211 | static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream, |
212 | unsigned int periods, unsigned int period_bytes) |
213 | { |
214 | unsigned int i, offset; |
215 | __le32 *risc; |
216 | |
217 | if (chip->dma_risc.area == NULL) { |
218 | if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dev: &chip->pci->dev, |
219 | PAGE_ALIGN(MAX_RISC_SIZE), dmab: &chip->dma_risc) < 0) |
220 | return -ENOMEM; |
221 | } |
222 | risc = (__le32 *)chip->dma_risc.area; |
223 | offset = 0; |
224 | *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1); |
225 | *risc++ = cpu_to_le32(0); |
226 | for (i = 0; i < periods; ++i) { |
227 | u32 rest; |
228 | |
229 | rest = period_bytes; |
230 | do { |
231 | u32 cmd, len; |
232 | unsigned int addr; |
233 | |
234 | len = PAGE_SIZE - (offset % PAGE_SIZE); |
235 | if (len > rest) |
236 | len = rest; |
237 | cmd = RISC_WRITE | len; |
238 | if (rest == period_bytes) { |
239 | u32 block = i * 16 / periods; |
240 | cmd |= RISC_SOL; |
241 | cmd |= block << RISC_SET_STATUS_SHIFT; |
242 | cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT; |
243 | } |
244 | if (len == rest) |
245 | cmd |= RISC_EOL | RISC_IRQ; |
246 | *risc++ = cpu_to_le32(cmd); |
247 | addr = snd_pcm_sgbuf_get_addr(substream, ofs: offset); |
248 | *risc++ = cpu_to_le32(addr); |
249 | offset += len; |
250 | rest -= len; |
251 | } while (rest > 0); |
252 | } |
253 | *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO); |
254 | *risc++ = cpu_to_le32(0); |
255 | *risc++ = cpu_to_le32(RISC_JUMP); |
256 | *risc++ = cpu_to_le32(chip->dma_risc.addr); |
257 | chip->line_bytes = period_bytes; |
258 | chip->lines = periods; |
259 | return 0; |
260 | } |
261 | |
262 | static void snd_bt87x_free_risc(struct snd_bt87x *chip) |
263 | { |
264 | if (chip->dma_risc.area) { |
265 | snd_dma_free_pages(dmab: &chip->dma_risc); |
266 | chip->dma_risc.area = NULL; |
267 | } |
268 | } |
269 | |
270 | static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status) |
271 | { |
272 | int pci_status = pci_status_get_and_clear_errors(pdev: chip->pci); |
273 | |
274 | if (pci_status != PCI_STATUS_DETECTED_PARITY) |
275 | dev_err(chip->card->dev, |
276 | "Aieee - PCI error! status %#08x, PCI status %#04x\n" , |
277 | status & ERROR_INTERRUPTS, pci_status); |
278 | else { |
279 | dev_err(chip->card->dev, |
280 | "Aieee - PCI parity error detected!\n" ); |
281 | /* error 'handling' similar to aic7xxx_pci.c: */ |
282 | chip->pci_parity_errors++; |
283 | if (chip->pci_parity_errors > 20) { |
284 | dev_err(chip->card->dev, |
285 | "Too many PCI parity errors observed.\n" ); |
286 | dev_err(chip->card->dev, |
287 | "Some device on this bus is generating bad parity.\n" ); |
288 | dev_err(chip->card->dev, |
289 | "This is an error *observed by*, not *generated by*, this card.\n" ); |
290 | dev_err(chip->card->dev, |
291 | "PCI parity error checking has been disabled.\n" ); |
292 | chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR); |
293 | snd_bt87x_writel(chip, REG_INT_MASK, value: chip->interrupt_mask); |
294 | } |
295 | } |
296 | } |
297 | |
298 | static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id) |
299 | { |
300 | struct snd_bt87x *chip = dev_id; |
301 | unsigned int status, irq_status; |
302 | |
303 | status = snd_bt87x_readl(chip, REG_INT_STAT); |
304 | irq_status = status & chip->interrupt_mask; |
305 | if (!irq_status) |
306 | return IRQ_NONE; |
307 | snd_bt87x_writel(chip, REG_INT_STAT, value: irq_status); |
308 | |
309 | if (irq_status & ERROR_INTERRUPTS) { |
310 | if (irq_status & (INT_FBUS | INT_FTRGT)) |
311 | dev_warn(chip->card->dev, |
312 | "FIFO overrun, status %#08x\n" , status); |
313 | if (irq_status & INT_OCERR) |
314 | dev_err(chip->card->dev, |
315 | "internal RISC error, status %#08x\n" , status); |
316 | if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT)) |
317 | snd_bt87x_pci_error(chip, status: irq_status); |
318 | } |
319 | if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) { |
320 | int current_block, irq_block; |
321 | |
322 | /* assume that exactly one line has been recorded */ |
323 | chip->current_line = (chip->current_line + 1) % chip->lines; |
324 | /* but check if some interrupts have been skipped */ |
325 | current_block = chip->current_line * 16 / chip->lines; |
326 | irq_block = status >> INT_RISCS_SHIFT; |
327 | if (current_block != irq_block) |
328 | chip->current_line = DIV_ROUND_UP(irq_block * chip->lines, |
329 | 16); |
330 | |
331 | snd_pcm_period_elapsed(substream: chip->substream); |
332 | } |
333 | return IRQ_HANDLED; |
334 | } |
335 | |
336 | static const struct snd_pcm_hardware snd_bt87x_digital_hw = { |
337 | .info = SNDRV_PCM_INFO_MMAP | |
338 | SNDRV_PCM_INFO_INTERLEAVED | |
339 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
340 | SNDRV_PCM_INFO_MMAP_VALID | |
341 | SNDRV_PCM_INFO_BATCH, |
342 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
343 | .rates = 0, /* set at runtime */ |
344 | .channels_min = 2, |
345 | .channels_max = 2, |
346 | .buffer_bytes_max = 255 * 4092, |
347 | .period_bytes_min = 32, |
348 | .period_bytes_max = 4092, |
349 | .periods_min = 2, |
350 | .periods_max = 255, |
351 | }; |
352 | |
353 | static const struct snd_pcm_hardware snd_bt87x_analog_hw = { |
354 | .info = SNDRV_PCM_INFO_MMAP | |
355 | SNDRV_PCM_INFO_INTERLEAVED | |
356 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
357 | SNDRV_PCM_INFO_MMAP_VALID | |
358 | SNDRV_PCM_INFO_BATCH, |
359 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8, |
360 | .rates = SNDRV_PCM_RATE_KNOT, |
361 | .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX, |
362 | .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN, |
363 | .channels_min = 1, |
364 | .channels_max = 1, |
365 | .buffer_bytes_max = 255 * 4092, |
366 | .period_bytes_min = 32, |
367 | .period_bytes_max = 4092, |
368 | .periods_min = 2, |
369 | .periods_max = 255, |
370 | }; |
371 | |
372 | static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) |
373 | { |
374 | chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN; |
375 | runtime->hw = snd_bt87x_digital_hw; |
376 | runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate: chip->board.dig_rate); |
377 | runtime->hw.rate_min = chip->board.dig_rate; |
378 | runtime->hw.rate_max = chip->board.dig_rate; |
379 | return 0; |
380 | } |
381 | |
382 | static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) |
383 | { |
384 | static const struct snd_ratnum analog_clock = { |
385 | .num = ANALOG_CLOCK, |
386 | .den_min = CLOCK_DIV_MIN, |
387 | .den_max = CLOCK_DIV_MAX, |
388 | .den_step = 1 |
389 | }; |
390 | static const struct snd_pcm_hw_constraint_ratnums constraint_rates = { |
391 | .nrats = 1, |
392 | .rats = &analog_clock |
393 | }; |
394 | |
395 | chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN); |
396 | runtime->hw = snd_bt87x_analog_hw; |
397 | return snd_pcm_hw_constraint_ratnums(runtime, cond: 0, SNDRV_PCM_HW_PARAM_RATE, |
398 | r: &constraint_rates); |
399 | } |
400 | |
401 | static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream) |
402 | { |
403 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
404 | struct snd_pcm_runtime *runtime = substream->runtime; |
405 | int err; |
406 | |
407 | if (test_and_set_bit(nr: 0, addr: &chip->opened)) |
408 | return -EBUSY; |
409 | |
410 | if (substream->pcm->device == DEVICE_DIGITAL) |
411 | err = snd_bt87x_set_digital_hw(chip, runtime); |
412 | else |
413 | err = snd_bt87x_set_analog_hw(chip, runtime); |
414 | if (err < 0) |
415 | goto _error; |
416 | |
417 | err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); |
418 | if (err < 0) |
419 | goto _error; |
420 | |
421 | chip->substream = substream; |
422 | return 0; |
423 | |
424 | _error: |
425 | clear_bit(nr: 0, addr: &chip->opened); |
426 | smp_mb__after_atomic(); |
427 | return err; |
428 | } |
429 | |
430 | static int snd_bt87x_close(struct snd_pcm_substream *substream) |
431 | { |
432 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
433 | |
434 | spin_lock_irq(lock: &chip->reg_lock); |
435 | chip->reg_control |= CTL_A_PWRDN; |
436 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, value: chip->reg_control); |
437 | spin_unlock_irq(lock: &chip->reg_lock); |
438 | |
439 | chip->substream = NULL; |
440 | clear_bit(nr: 0, addr: &chip->opened); |
441 | smp_mb__after_atomic(); |
442 | return 0; |
443 | } |
444 | |
445 | static int snd_bt87x_hw_params(struct snd_pcm_substream *substream, |
446 | struct snd_pcm_hw_params *hw_params) |
447 | { |
448 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
449 | |
450 | return snd_bt87x_create_risc(chip, substream, |
451 | periods: params_periods(p: hw_params), |
452 | period_bytes: params_period_bytes(p: hw_params)); |
453 | } |
454 | |
455 | static int snd_bt87x_hw_free(struct snd_pcm_substream *substream) |
456 | { |
457 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
458 | |
459 | snd_bt87x_free_risc(chip); |
460 | return 0; |
461 | } |
462 | |
463 | static int snd_bt87x_prepare(struct snd_pcm_substream *substream) |
464 | { |
465 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
466 | struct snd_pcm_runtime *runtime = substream->runtime; |
467 | int decimation; |
468 | |
469 | spin_lock_irq(lock: &chip->reg_lock); |
470 | chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR); |
471 | decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate; |
472 | chip->reg_control |= decimation << CTL_DA_SDR_SHIFT; |
473 | if (runtime->format == SNDRV_PCM_FORMAT_S8) |
474 | chip->reg_control |= CTL_DA_SBR; |
475 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, value: chip->reg_control); |
476 | spin_unlock_irq(lock: &chip->reg_lock); |
477 | return 0; |
478 | } |
479 | |
480 | static int snd_bt87x_start(struct snd_bt87x *chip) |
481 | { |
482 | spin_lock(lock: &chip->reg_lock); |
483 | chip->current_line = 0; |
484 | chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN; |
485 | snd_bt87x_writel(chip, REG_RISC_STRT_ADD, value: chip->dma_risc.addr); |
486 | snd_bt87x_writel(chip, REG_PACKET_LEN, |
487 | value: chip->line_bytes | (chip->lines << 16)); |
488 | snd_bt87x_writel(chip, REG_INT_MASK, value: chip->interrupt_mask); |
489 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, value: chip->reg_control); |
490 | spin_unlock(lock: &chip->reg_lock); |
491 | return 0; |
492 | } |
493 | |
494 | static int snd_bt87x_stop(struct snd_bt87x *chip) |
495 | { |
496 | spin_lock(lock: &chip->reg_lock); |
497 | chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN); |
498 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, value: chip->reg_control); |
499 | snd_bt87x_writel(chip, REG_INT_MASK, value: 0); |
500 | snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); |
501 | spin_unlock(lock: &chip->reg_lock); |
502 | return 0; |
503 | } |
504 | |
505 | static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd) |
506 | { |
507 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
508 | |
509 | switch (cmd) { |
510 | case SNDRV_PCM_TRIGGER_START: |
511 | return snd_bt87x_start(chip); |
512 | case SNDRV_PCM_TRIGGER_STOP: |
513 | return snd_bt87x_stop(chip); |
514 | default: |
515 | return -EINVAL; |
516 | } |
517 | } |
518 | |
519 | static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream) |
520 | { |
521 | struct snd_bt87x *chip = snd_pcm_substream_chip(substream); |
522 | struct snd_pcm_runtime *runtime = substream->runtime; |
523 | |
524 | return (snd_pcm_uframes_t)bytes_to_frames(runtime, size: chip->current_line * chip->line_bytes); |
525 | } |
526 | |
527 | static const struct snd_pcm_ops snd_bt87x_pcm_ops = { |
528 | .open = snd_bt87x_pcm_open, |
529 | .close = snd_bt87x_close, |
530 | .hw_params = snd_bt87x_hw_params, |
531 | .hw_free = snd_bt87x_hw_free, |
532 | .prepare = snd_bt87x_prepare, |
533 | .trigger = snd_bt87x_trigger, |
534 | .pointer = snd_bt87x_pointer, |
535 | }; |
536 | |
537 | static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol, |
538 | struct snd_ctl_elem_info *info) |
539 | { |
540 | info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
541 | info->count = 1; |
542 | info->value.integer.min = 0; |
543 | info->value.integer.max = 15; |
544 | return 0; |
545 | } |
546 | |
547 | static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol, |
548 | struct snd_ctl_elem_value *value) |
549 | { |
550 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
551 | |
552 | value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT; |
553 | return 0; |
554 | } |
555 | |
556 | static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol, |
557 | struct snd_ctl_elem_value *value) |
558 | { |
559 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
560 | u32 old_control; |
561 | int changed; |
562 | |
563 | spin_lock_irq(lock: &chip->reg_lock); |
564 | old_control = chip->reg_control; |
565 | chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK) |
566 | | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT); |
567 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, value: chip->reg_control); |
568 | changed = old_control != chip->reg_control; |
569 | spin_unlock_irq(lock: &chip->reg_lock); |
570 | return changed; |
571 | } |
572 | |
573 | static const struct snd_kcontrol_new snd_bt87x_capture_volume = { |
574 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
575 | .name = "Capture Volume" , |
576 | .info = snd_bt87x_capture_volume_info, |
577 | .get = snd_bt87x_capture_volume_get, |
578 | .put = snd_bt87x_capture_volume_put, |
579 | }; |
580 | |
581 | #define snd_bt87x_capture_boost_info snd_ctl_boolean_mono_info |
582 | |
583 | static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol, |
584 | struct snd_ctl_elem_value *value) |
585 | { |
586 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
587 | |
588 | value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X); |
589 | return 0; |
590 | } |
591 | |
592 | static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol, |
593 | struct snd_ctl_elem_value *value) |
594 | { |
595 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
596 | u32 old_control; |
597 | int changed; |
598 | |
599 | spin_lock_irq(lock: &chip->reg_lock); |
600 | old_control = chip->reg_control; |
601 | chip->reg_control = (chip->reg_control & ~CTL_A_G2X) |
602 | | (value->value.integer.value[0] ? CTL_A_G2X : 0); |
603 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, value: chip->reg_control); |
604 | changed = chip->reg_control != old_control; |
605 | spin_unlock_irq(lock: &chip->reg_lock); |
606 | return changed; |
607 | } |
608 | |
609 | static const struct snd_kcontrol_new snd_bt87x_capture_boost = { |
610 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
611 | .name = "Capture Boost" , |
612 | .info = snd_bt87x_capture_boost_info, |
613 | .get = snd_bt87x_capture_boost_get, |
614 | .put = snd_bt87x_capture_boost_put, |
615 | }; |
616 | |
617 | static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol, |
618 | struct snd_ctl_elem_info *info) |
619 | { |
620 | static const char *const texts[3] = {"TV Tuner" , "FM" , "Mic/Line" }; |
621 | |
622 | return snd_ctl_enum_info(info, channels: 1, items: 3, names: texts); |
623 | } |
624 | |
625 | static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol, |
626 | struct snd_ctl_elem_value *value) |
627 | { |
628 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
629 | |
630 | value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT; |
631 | return 0; |
632 | } |
633 | |
634 | static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol, |
635 | struct snd_ctl_elem_value *value) |
636 | { |
637 | struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol); |
638 | u32 old_control; |
639 | int changed; |
640 | |
641 | spin_lock_irq(lock: &chip->reg_lock); |
642 | old_control = chip->reg_control; |
643 | chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK) |
644 | | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT); |
645 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, value: chip->reg_control); |
646 | changed = chip->reg_control != old_control; |
647 | spin_unlock_irq(lock: &chip->reg_lock); |
648 | return changed; |
649 | } |
650 | |
651 | static const struct snd_kcontrol_new snd_bt87x_capture_source = { |
652 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
653 | .name = "Capture Source" , |
654 | .info = snd_bt87x_capture_source_info, |
655 | .get = snd_bt87x_capture_source_get, |
656 | .put = snd_bt87x_capture_source_put, |
657 | }; |
658 | |
659 | static void snd_bt87x_free(struct snd_card *card) |
660 | { |
661 | struct snd_bt87x *chip = card->private_data; |
662 | |
663 | snd_bt87x_stop(chip); |
664 | } |
665 | |
666 | static int snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name) |
667 | { |
668 | int err; |
669 | struct snd_pcm *pcm; |
670 | |
671 | err = snd_pcm_new(card: chip->card, id: name, device, playback_count: 0, capture_count: 1, rpcm: &pcm); |
672 | if (err < 0) |
673 | return err; |
674 | pcm->private_data = chip; |
675 | strcpy(p: pcm->name, q: name); |
676 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_CAPTURE, ops: &snd_bt87x_pcm_ops); |
677 | snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG, |
678 | data: &chip->pci->dev, |
679 | size: 128 * 1024, |
680 | ALIGN(255 * 4092, 1024)); |
681 | return 0; |
682 | } |
683 | |
684 | static int snd_bt87x_create(struct snd_card *card, |
685 | struct pci_dev *pci) |
686 | { |
687 | struct snd_bt87x *chip = card->private_data; |
688 | int err; |
689 | |
690 | err = pcim_enable_device(pdev: pci); |
691 | if (err < 0) |
692 | return err; |
693 | |
694 | chip->card = card; |
695 | chip->pci = pci; |
696 | chip->irq = -1; |
697 | spin_lock_init(&chip->reg_lock); |
698 | |
699 | err = pcim_iomap_regions(pdev: pci, mask: 1 << 0, name: "Bt87x audio" ); |
700 | if (err < 0) |
701 | return err; |
702 | chip->mmio = pcim_iomap_table(pdev: pci)[0]; |
703 | |
704 | chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 | |
705 | CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT); |
706 | chip->interrupt_mask = MY_INTERRUPTS; |
707 | snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, value: chip->reg_control); |
708 | snd_bt87x_writel(chip, REG_INT_MASK, value: 0); |
709 | snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS); |
710 | |
711 | err = devm_request_irq(dev: &pci->dev, irq: pci->irq, handler: snd_bt87x_interrupt, |
712 | IRQF_SHARED, KBUILD_MODNAME, dev_id: chip); |
713 | if (err < 0) { |
714 | dev_err(card->dev, "cannot grab irq %d\n" , pci->irq); |
715 | return err; |
716 | } |
717 | chip->irq = pci->irq; |
718 | card->sync_irq = chip->irq; |
719 | card->private_free = snd_bt87x_free; |
720 | pci_set_master(dev: pci); |
721 | |
722 | return 0; |
723 | } |
724 | |
725 | #define BT_DEVICE(chip, subvend, subdev, id) \ |
726 | { .vendor = PCI_VENDOR_ID_BROOKTREE, \ |
727 | .device = chip, \ |
728 | .subvendor = subvend, .subdevice = subdev, \ |
729 | .driver_data = SND_BT87X_BOARD_ ## id } |
730 | /* driver_data is the card id for that device */ |
731 | |
732 | static const struct pci_device_id snd_bt87x_ids[] = { |
733 | /* Hauppauge WinTV series */ |
734 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC), |
735 | /* Hauppauge WinTV series */ |
736 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC), |
737 | /* Viewcast Osprey 200 */ |
738 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0), |
739 | /* Viewcast Osprey 440 (rate is configurable via gpio) */ |
740 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440), |
741 | /* ATI TV-Wonder */ |
742 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC), |
743 | /* Leadtek Winfast tv 2000xp delux */ |
744 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC), |
745 | /* Pinnacle PCTV */ |
746 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x11bd, 0x0012, GENERIC), |
747 | /* Voodoo TV 200 */ |
748 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC), |
749 | /* Askey Computer Corp. MagicTView'99 */ |
750 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x144f, 0x3000, GENERIC), |
751 | /* AVerMedia Studio No. 103, 203, ...? */ |
752 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98), |
753 | /* Prolink PixelView PV-M4900 */ |
754 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC), |
755 | /* Pinnacle Studio PCTV rave */ |
756 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC), |
757 | { } |
758 | }; |
759 | MODULE_DEVICE_TABLE(pci, snd_bt87x_ids); |
760 | |
761 | /* cards known not to have audio |
762 | * (DVB cards use the audio function to transfer MPEG data) */ |
763 | static struct { |
764 | unsigned short subvendor, subdevice; |
765 | } denylist[] = { |
766 | {0x0071, 0x0101}, /* Nebula Electronics DigiTV */ |
767 | {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */ |
768 | {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */ |
769 | {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */ |
770 | {0x1461, 0x0771}, /* AVermedia DVB-T 771 */ |
771 | {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */ |
772 | {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */ |
773 | {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */ |
774 | {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */ |
775 | {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */ |
776 | {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */ |
777 | }; |
778 | |
779 | static struct pci_driver driver; |
780 | |
781 | /* return the id of the card, or a negative value if it's on the denylist */ |
782 | static int snd_bt87x_detect_card(struct pci_dev *pci) |
783 | { |
784 | int i; |
785 | const struct pci_device_id *supported; |
786 | |
787 | supported = pci_match_id(ids: snd_bt87x_ids, dev: pci); |
788 | if (supported && supported->driver_data > 0) |
789 | return supported->driver_data; |
790 | |
791 | for (i = 0; i < ARRAY_SIZE(denylist); ++i) |
792 | if (denylist[i].subvendor == pci->subsystem_vendor && |
793 | denylist[i].subdevice == pci->subsystem_device) { |
794 | dev_dbg(&pci->dev, |
795 | "card %#04x-%#04x:%#04x has no audio\n" , |
796 | pci->device, pci->subsystem_vendor, pci->subsystem_device); |
797 | return -EBUSY; |
798 | } |
799 | |
800 | dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n" , |
801 | pci->device, pci->subsystem_vendor, pci->subsystem_device); |
802 | dev_info(&pci->dev, "please mail id, board name, and, " |
803 | "if it works, the correct digital_rate option to " |
804 | "<alsa-devel@alsa-project.org>\n" ); |
805 | return SND_BT87X_BOARD_UNKNOWN; |
806 | } |
807 | |
808 | static int __snd_bt87x_probe(struct pci_dev *pci, |
809 | const struct pci_device_id *pci_id) |
810 | { |
811 | static int dev; |
812 | struct snd_card *card; |
813 | struct snd_bt87x *chip; |
814 | int err; |
815 | enum snd_bt87x_boardid boardid; |
816 | |
817 | if (!pci_id->driver_data) { |
818 | err = snd_bt87x_detect_card(pci); |
819 | if (err < 0) |
820 | return -ENODEV; |
821 | boardid = err; |
822 | } else |
823 | boardid = pci_id->driver_data; |
824 | |
825 | if (dev >= SNDRV_CARDS) |
826 | return -ENODEV; |
827 | if (!enable[dev]) { |
828 | ++dev; |
829 | return -ENOENT; |
830 | } |
831 | |
832 | err = snd_devm_card_new(parent: &pci->dev, idx: index[dev], xid: id[dev], THIS_MODULE, |
833 | extra_size: sizeof(*chip), card_ret: &card); |
834 | if (err < 0) |
835 | return err; |
836 | chip = card->private_data; |
837 | |
838 | err = snd_bt87x_create(card, pci); |
839 | if (err < 0) |
840 | return err; |
841 | |
842 | memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board)); |
843 | |
844 | if (!chip->board.no_digital) { |
845 | if (digital_rate[dev] > 0) |
846 | chip->board.dig_rate = digital_rate[dev]; |
847 | |
848 | chip->reg_control |= chip->board.digital_fmt; |
849 | |
850 | err = snd_bt87x_pcm(chip, device: DEVICE_DIGITAL, name: "Bt87x Digital" ); |
851 | if (err < 0) |
852 | return err; |
853 | } |
854 | if (!chip->board.no_analog) { |
855 | err = snd_bt87x_pcm(chip, device: DEVICE_ANALOG, name: "Bt87x Analog" ); |
856 | if (err < 0) |
857 | return err; |
858 | err = snd_ctl_add(card, kcontrol: snd_ctl_new1( |
859 | kcontrolnew: &snd_bt87x_capture_volume, private_data: chip)); |
860 | if (err < 0) |
861 | return err; |
862 | err = snd_ctl_add(card, kcontrol: snd_ctl_new1( |
863 | kcontrolnew: &snd_bt87x_capture_boost, private_data: chip)); |
864 | if (err < 0) |
865 | return err; |
866 | err = snd_ctl_add(card, kcontrol: snd_ctl_new1( |
867 | kcontrolnew: &snd_bt87x_capture_source, private_data: chip)); |
868 | if (err < 0) |
869 | return err; |
870 | } |
871 | dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital " |
872 | "(rate %d Hz)\n" , dev, boardid, |
873 | chip->board.no_analog ? "no " : "" , |
874 | chip->board.no_digital ? "no " : "" , chip->board.dig_rate); |
875 | |
876 | strcpy(p: card->driver, q: "Bt87x" ); |
877 | sprintf(buf: card->shortname, fmt: "Brooktree Bt%x" , pci->device); |
878 | sprintf(buf: card->longname, fmt: "%s at %#llx, irq %i" , |
879 | card->shortname, (unsigned long long)pci_resource_start(pci, 0), |
880 | chip->irq); |
881 | strcpy(p: card->mixername, q: "Bt87x" ); |
882 | |
883 | err = snd_card_register(card); |
884 | if (err < 0) |
885 | return err; |
886 | |
887 | pci_set_drvdata(pdev: pci, data: card); |
888 | ++dev; |
889 | return 0; |
890 | } |
891 | |
892 | static int snd_bt87x_probe(struct pci_dev *pci, |
893 | const struct pci_device_id *pci_id) |
894 | { |
895 | return snd_card_free_on_error(dev: &pci->dev, ret: __snd_bt87x_probe(pci, pci_id)); |
896 | } |
897 | |
898 | /* default entries for all Bt87x cards - it's not exported */ |
899 | /* driver_data is set to 0 to call detection */ |
900 | static const struct pci_device_id snd_bt87x_default_ids[] = { |
901 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), |
902 | BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN), |
903 | { } |
904 | }; |
905 | |
906 | static struct pci_driver driver = { |
907 | .name = KBUILD_MODNAME, |
908 | .id_table = snd_bt87x_ids, |
909 | .probe = snd_bt87x_probe, |
910 | }; |
911 | |
912 | static int __init alsa_card_bt87x_init(void) |
913 | { |
914 | if (load_all) |
915 | driver.id_table = snd_bt87x_default_ids; |
916 | return pci_register_driver(&driver); |
917 | } |
918 | |
919 | static void __exit alsa_card_bt87x_exit(void) |
920 | { |
921 | pci_unregister_driver(dev: &driver); |
922 | } |
923 | |
924 | module_init(alsa_card_bt87x_init) |
925 | module_exit(alsa_card_bt87x_exit) |
926 | |