ALSA: Convert to snd_card_create() in sound/pci/*
[linux-2.6.git] / sound / pci / bt87x.c
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 <linux/init.h>
25 #include <linux/interrupt.h>
26 #include <linux/pci.h>
27 #include <linux/slab.h>
28 #include <linux/moduleparam.h>
29 #include <linux/bitops.h>
30 #include <asm/io.h>
31 #include <sound/core.h>
32 #include <sound/pcm.h>
33 #include <sound/pcm_params.h>
34 #include <sound/control.h>
35 #include <sound/initval.h>
36
37 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
38 MODULE_DESCRIPTION("Brooktree Bt87x audio driver");
39 MODULE_LICENSE("GPL");
40 MODULE_SUPPORTED_DEVICE("{{Brooktree,Bt878},"
41                 "{Brooktree,Bt879}}");
42
43 static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
44 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
45 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
46 static int digital_rate[SNDRV_CARDS];   /* digital input rate */
47 static int load_all;    /* allow to load the non-whitelisted cards */
48
49 module_param_array(index, int, NULL, 0444);
50 MODULE_PARM_DESC(index, "Index value for Bt87x soundcard");
51 module_param_array(id, charp, NULL, 0444);
52 MODULE_PARM_DESC(id, "ID string for Bt87x soundcard");
53 module_param_array(enable, bool, NULL, 0444);
54 MODULE_PARM_DESC(enable, "Enable Bt87x soundcard");
55 module_param_array(digital_rate, int, NULL, 0444);
56 MODULE_PARM_DESC(digital_rate, "Digital input rate for Bt87x soundcard");
57 module_param(load_all, bool, 0444);
58 MODULE_PARM_DESC(load_all, "Allow to load the non-whitelisted cards");
59
60
61 /* register offsets */
62 #define REG_INT_STAT            0x100   /* interrupt status */
63 #define REG_INT_MASK            0x104   /* interrupt mask */
64 #define REG_GPIO_DMA_CTL        0x10c   /* audio control */
65 #define REG_PACKET_LEN          0x110   /* audio packet lengths */
66 #define REG_RISC_STRT_ADD       0x114   /* RISC program start address */
67 #define REG_RISC_COUNT          0x120   /* RISC program counter */
68
69 /* interrupt bits */
70 #define INT_OFLOW       (1 <<  3)       /* audio A/D overflow */
71 #define INT_RISCI       (1 << 11)       /* RISC instruction IRQ bit set */
72 #define INT_FBUS        (1 << 12)       /* FIFO overrun due to bus access latency */
73 #define INT_FTRGT       (1 << 13)       /* FIFO overrun due to target latency */
74 #define INT_FDSR        (1 << 14)       /* FIFO data stream resynchronization */
75 #define INT_PPERR       (1 << 15)       /* PCI parity error */
76 #define INT_RIPERR      (1 << 16)       /* RISC instruction parity error */
77 #define INT_PABORT      (1 << 17)       /* PCI master or target abort */
78 #define INT_OCERR       (1 << 18)       /* invalid opcode */
79 #define INT_SCERR       (1 << 19)       /* sync counter overflow */
80 #define INT_RISC_EN     (1 << 27)       /* DMA controller running */
81 #define INT_RISCS_SHIFT       28        /* RISC status bits */
82
83 /* audio control bits */
84 #define CTL_FIFO_ENABLE         (1 <<  0)       /* enable audio data FIFO */
85 #define CTL_RISC_ENABLE         (1 <<  1)       /* enable audio DMA controller */
86 #define CTL_PKTP_4              (0 <<  2)       /* packet mode FIFO trigger point - 4 DWORDs */
87 #define CTL_PKTP_8              (1 <<  2)       /* 8 DWORDs */
88 #define CTL_PKTP_16             (2 <<  2)       /* 16 DWORDs */
89 #define CTL_ACAP_EN             (1 <<  4)       /* enable audio capture */
90 #define CTL_DA_APP              (1 <<  5)       /* GPIO input */
91 #define CTL_DA_IOM_AFE          (0 <<  6)       /* audio A/D input */
92 #define CTL_DA_IOM_DA           (1 <<  6)       /* digital audio input */
93 #define CTL_DA_SDR_SHIFT               8        /* DDF first stage decimation rate */
94 #define CTL_DA_SDR_MASK         (0xf<< 8)
95 #define CTL_DA_LMT              (1 << 12)       /* limit audio data values */
96 #define CTL_DA_ES2              (1 << 13)       /* enable DDF stage 2 */
97 #define CTL_DA_SBR              (1 << 14)       /* samples rounded to 8 bits */
98 #define CTL_DA_DPM              (1 << 15)       /* data packet mode */
99 #define CTL_DA_LRD_SHIFT              16        /* ALRCK delay */
100 #define CTL_DA_MLB              (1 << 21)       /* MSB/LSB format */
101 #define CTL_DA_LRI              (1 << 22)       /* left/right indication */
102 #define CTL_DA_SCE              (1 << 23)       /* sample clock edge */
103 #define CTL_A_SEL_STV           (0 << 24)       /* TV tuner audio input */
104 #define CTL_A_SEL_SFM           (1 << 24)       /* FM audio input */
105 #define CTL_A_SEL_SML           (2 << 24)       /* mic/line audio input */
106 #define CTL_A_SEL_SMXC          (3 << 24)       /* MUX bypass */
107 #define CTL_A_SEL_SHIFT               24
108 #define CTL_A_SEL_MASK          (3 << 24)
109 #define CTL_A_PWRDN             (1 << 26)       /* analog audio power-down */
110 #define CTL_A_G2X               (1 << 27)       /* audio gain boost */
111 #define CTL_A_GAIN_SHIFT              28        /* audio input gain */
112 #define CTL_A_GAIN_MASK         (0xf<<28)
113
114 /* RISC instruction opcodes */
115 #define RISC_WRITE      (0x1 << 28)     /* write FIFO data to memory at address */
116 #define RISC_WRITEC     (0x5 << 28)     /* write FIFO data to memory at current address */
117 #define RISC_SKIP       (0x2 << 28)     /* skip FIFO data */
118 #define RISC_JUMP       (0x7 << 28)     /* jump to address */
119 #define RISC_SYNC       (0x8 << 28)     /* synchronize with FIFO */
120
121 /* RISC instruction bits */
122 #define RISC_BYTES_ENABLE       (0xf << 12)     /* byte enable bits */
123 #define RISC_RESYNC             (  1 << 15)     /* disable FDSR errors */
124 #define RISC_SET_STATUS_SHIFT           16      /* set status bits */
125 #define RISC_RESET_STATUS_SHIFT         20      /* clear status bits */
126 #define RISC_IRQ                (  1 << 24)     /* interrupt */
127 #define RISC_EOL                (  1 << 26)     /* end of line */
128 #define RISC_SOL                (  1 << 27)     /* start of line */
129
130 /* SYNC status bits values */
131 #define RISC_SYNC_FM1   0x6
132 #define RISC_SYNC_VRO   0xc
133
134 #define ANALOG_CLOCK 1792000
135 #ifdef CONFIG_SND_BT87X_OVERCLOCK
136 #define CLOCK_DIV_MIN 1
137 #else
138 #define CLOCK_DIV_MIN 4
139 #endif
140 #define CLOCK_DIV_MAX 15
141
142 #define ERROR_INTERRUPTS (INT_FBUS | INT_FTRGT | INT_PPERR | \
143                           INT_RIPERR | INT_PABORT | INT_OCERR)
144 #define MY_INTERRUPTS (INT_RISCI | ERROR_INTERRUPTS)
145
146 /* SYNC, one WRITE per line, one extra WRITE per page boundary, SYNC, JUMP */
147 #define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
148
149 /* Cards with configuration information */
150 enum snd_bt87x_boardid {
151         SND_BT87X_BOARD_UNKNOWN,
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 */
160 struct 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
167 static __devinitdata struct snd_bt87x_board snd_bt87x_boards[] = {
168         [SND_BT87X_BOARD_UNKNOWN] = {
169                 .dig_rate = 32000, /* just a guess */
170         },
171         [SND_BT87X_BOARD_GENERIC] = {
172                 .dig_rate = 32000,
173         },
174         [SND_BT87X_BOARD_ANALOG] = {
175                 .no_digital = 1,
176         },
177         [SND_BT87X_BOARD_OSPREY2x0] = {
178                 .dig_rate = 44100,
179                 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
180         },
181         [SND_BT87X_BOARD_OSPREY440] = {
182                 .dig_rate = 32000,
183                 .digital_fmt = CTL_DA_LRI | (1 << CTL_DA_LRD_SHIFT),
184                 .no_analog = 1,
185         },
186         [SND_BT87X_BOARD_AVPHONE98] = {
187                 .dig_rate = 48000,
188         },
189 };
190
191 struct snd_bt87x {
192         struct snd_card *card;
193         struct pci_dev *pci;
194         struct snd_bt87x_board board;
195
196         void __iomem *mmio;
197         int irq;
198
199         spinlock_t reg_lock;
200         unsigned long opened;
201         struct snd_pcm_substream *substream;
202
203         struct snd_dma_buffer dma_risc;
204         unsigned int line_bytes;
205         unsigned int lines;
206
207         u32 reg_control;
208         u32 interrupt_mask;
209
210         int current_line;
211
212         int pci_parity_errors;
213 };
214
215 enum { DEVICE_DIGITAL, DEVICE_ANALOG };
216
217 static inline u32 snd_bt87x_readl(struct snd_bt87x *chip, u32 reg)
218 {
219         return readl(chip->mmio + reg);
220 }
221
222 static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
223 {
224         writel(value, chip->mmio + reg);
225 }
226
227 static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
228                                  unsigned int periods, unsigned int period_bytes)
229 {
230         unsigned int i, offset;
231         u32 *risc;
232
233         if (chip->dma_risc.area == NULL) {
234                 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
235                                         PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)
236                         return -ENOMEM;
237         }
238         risc = (u32 *)chip->dma_risc.area;
239         offset = 0;
240         *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_FM1);
241         *risc++ = cpu_to_le32(0);
242         for (i = 0; i < periods; ++i) {
243                 u32 rest;
244
245                 rest = period_bytes;
246                 do {
247                         u32 cmd, len;
248                         unsigned int addr;
249
250                         len = PAGE_SIZE - (offset % PAGE_SIZE);
251                         if (len > rest)
252                                 len = rest;
253                         cmd = RISC_WRITE | len;
254                         if (rest == period_bytes) {
255                                 u32 block = i * 16 / periods;
256                                 cmd |= RISC_SOL;
257                                 cmd |= block << RISC_SET_STATUS_SHIFT;
258                                 cmd |= (~block & 0xf) << RISC_RESET_STATUS_SHIFT;
259                         }
260                         if (len == rest)
261                                 cmd |= RISC_EOL | RISC_IRQ;
262                         *risc++ = cpu_to_le32(cmd);
263                         addr = snd_pcm_sgbuf_get_addr(substream, offset);
264                         *risc++ = cpu_to_le32(addr);
265                         offset += len;
266                         rest -= len;
267                 } while (rest > 0);
268         }
269         *risc++ = cpu_to_le32(RISC_SYNC | RISC_SYNC_VRO);
270         *risc++ = cpu_to_le32(0);
271         *risc++ = cpu_to_le32(RISC_JUMP);
272         *risc++ = cpu_to_le32(chip->dma_risc.addr);
273         chip->line_bytes = period_bytes;
274         chip->lines = periods;
275         return 0;
276 }
277
278 static void snd_bt87x_free_risc(struct snd_bt87x *chip)
279 {
280         if (chip->dma_risc.area) {
281                 snd_dma_free_pages(&chip->dma_risc);
282                 chip->dma_risc.area = NULL;
283         }
284 }
285
286 static void snd_bt87x_pci_error(struct snd_bt87x *chip, unsigned int status)
287 {
288         u16 pci_status;
289
290         pci_read_config_word(chip->pci, PCI_STATUS, &pci_status);
291         pci_status &= PCI_STATUS_PARITY | PCI_STATUS_SIG_TARGET_ABORT |
292                 PCI_STATUS_REC_TARGET_ABORT | PCI_STATUS_REC_MASTER_ABORT |
293                 PCI_STATUS_SIG_SYSTEM_ERROR | PCI_STATUS_DETECTED_PARITY;
294         pci_write_config_word(chip->pci, PCI_STATUS, pci_status);
295         if (pci_status != PCI_STATUS_DETECTED_PARITY)
296                 snd_printk(KERN_ERR "Aieee - PCI error! status %#08x, PCI status %#04x\n",
297                            status & ERROR_INTERRUPTS, pci_status);
298         else {
299                 snd_printk(KERN_ERR "Aieee - PCI parity error detected!\n");
300                 /* error 'handling' similar to aic7xxx_pci.c: */
301                 chip->pci_parity_errors++;
302                 if (chip->pci_parity_errors > 20) {
303                         snd_printk(KERN_ERR "Too many PCI parity errors observed.\n");
304                         snd_printk(KERN_ERR "Some device on this bus is generating bad parity.\n");
305                         snd_printk(KERN_ERR "This is an error *observed by*, not *generated by*, this card.\n");
306                         snd_printk(KERN_ERR "PCI parity error checking has been disabled.\n");
307                         chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);
308                         snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
309                 }
310         }
311 }
312
313 static irqreturn_t snd_bt87x_interrupt(int irq, void *dev_id)
314 {
315         struct snd_bt87x *chip = dev_id;
316         unsigned int status, irq_status;
317
318         status = snd_bt87x_readl(chip, REG_INT_STAT);
319         irq_status = status & chip->interrupt_mask;
320         if (!irq_status)
321                 return IRQ_NONE;
322         snd_bt87x_writel(chip, REG_INT_STAT, irq_status);
323
324         if (irq_status & ERROR_INTERRUPTS) {
325                 if (irq_status & (INT_FBUS | INT_FTRGT))
326                         snd_printk(KERN_WARNING "FIFO overrun, status %#08x\n", status);
327                 if (irq_status & INT_OCERR)
328                         snd_printk(KERN_ERR "internal RISC error, status %#08x\n", status);
329                 if (irq_status & (INT_PPERR | INT_RIPERR | INT_PABORT))
330                         snd_bt87x_pci_error(chip, irq_status);
331         }
332         if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {
333                 int current_block, irq_block;
334
335                 /* assume that exactly one line has been recorded */
336                 chip->current_line = (chip->current_line + 1) % chip->lines;
337                 /* but check if some interrupts have been skipped */
338                 current_block = chip->current_line * 16 / chip->lines;
339                 irq_block = status >> INT_RISCS_SHIFT;
340                 if (current_block != irq_block)
341                         chip->current_line = (irq_block * chip->lines + 15) / 16;
342
343                 snd_pcm_period_elapsed(chip->substream);
344         }
345         return IRQ_HANDLED;
346 }
347
348 static struct snd_pcm_hardware snd_bt87x_digital_hw = {
349         .info = SNDRV_PCM_INFO_MMAP |
350                 SNDRV_PCM_INFO_INTERLEAVED |
351                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
352                 SNDRV_PCM_INFO_MMAP_VALID,
353         .formats = SNDRV_PCM_FMTBIT_S16_LE,
354         .rates = 0, /* set at runtime */
355         .channels_min = 2,
356         .channels_max = 2,
357         .buffer_bytes_max = 255 * 4092,
358         .period_bytes_min = 32,
359         .period_bytes_max = 4092,
360         .periods_min = 2,
361         .periods_max = 255,
362 };
363
364 static struct snd_pcm_hardware snd_bt87x_analog_hw = {
365         .info = SNDRV_PCM_INFO_MMAP |
366                 SNDRV_PCM_INFO_INTERLEAVED |
367                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
368                 SNDRV_PCM_INFO_MMAP_VALID,
369         .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
370         .rates = SNDRV_PCM_RATE_KNOT,
371         .rate_min = ANALOG_CLOCK / CLOCK_DIV_MAX,
372         .rate_max = ANALOG_CLOCK / CLOCK_DIV_MIN,
373         .channels_min = 1,
374         .channels_max = 1,
375         .buffer_bytes_max = 255 * 4092,
376         .period_bytes_min = 32,
377         .period_bytes_max = 4092,
378         .periods_min = 2,
379         .periods_max = 255,
380 };
381
382 static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
383 {
384         chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;
385         runtime->hw = snd_bt87x_digital_hw;
386         runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);
387         runtime->hw.rate_min = chip->board.dig_rate;
388         runtime->hw.rate_max = chip->board.dig_rate;
389         return 0;
390 }
391
392 static int snd_bt87x_set_analog_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime)
393 {
394         static struct snd_ratnum analog_clock = {
395                 .num = ANALOG_CLOCK,
396                 .den_min = CLOCK_DIV_MIN,
397                 .den_max = CLOCK_DIV_MAX,
398                 .den_step = 1
399         };
400         static struct snd_pcm_hw_constraint_ratnums constraint_rates = {
401                 .nrats = 1,
402                 .rats = &analog_clock
403         };
404
405         chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);
406         runtime->hw = snd_bt87x_analog_hw;
407         return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
408                                              &constraint_rates);
409 }
410
411 static int snd_bt87x_pcm_open(struct snd_pcm_substream *substream)
412 {
413         struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
414         struct snd_pcm_runtime *runtime = substream->runtime;
415         int err;
416
417         if (test_and_set_bit(0, &chip->opened))
418                 return -EBUSY;
419
420         if (substream->pcm->device == DEVICE_DIGITAL)
421                 err = snd_bt87x_set_digital_hw(chip, runtime);
422         else
423                 err = snd_bt87x_set_analog_hw(chip, runtime);
424         if (err < 0)
425                 goto _error;
426
427         err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
428         if (err < 0)
429                 goto _error;
430
431         chip->substream = substream;
432         return 0;
433
434 _error:
435         clear_bit(0, &chip->opened);
436         smp_mb__after_clear_bit();
437         return err;
438 }
439
440 static int snd_bt87x_close(struct snd_pcm_substream *substream)
441 {
442         struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
443
444         spin_lock_irq(&chip->reg_lock);
445         chip->reg_control |= CTL_A_PWRDN;
446         snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
447         spin_unlock_irq(&chip->reg_lock);
448
449         chip->substream = NULL;
450         clear_bit(0, &chip->opened);
451         smp_mb__after_clear_bit();
452         return 0;
453 }
454
455 static int snd_bt87x_hw_params(struct snd_pcm_substream *substream,
456                                struct snd_pcm_hw_params *hw_params)
457 {
458         struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
459         int err;
460
461         err = snd_pcm_lib_malloc_pages(substream,
462                                        params_buffer_bytes(hw_params));
463         if (err < 0)
464                 return err;
465         return snd_bt87x_create_risc(chip, substream,
466                                      params_periods(hw_params),
467                                      params_period_bytes(hw_params));
468 }
469
470 static int snd_bt87x_hw_free(struct snd_pcm_substream *substream)
471 {
472         struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
473
474         snd_bt87x_free_risc(chip);
475         snd_pcm_lib_free_pages(substream);
476         return 0;
477 }
478
479 static int snd_bt87x_prepare(struct snd_pcm_substream *substream)
480 {
481         struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
482         struct snd_pcm_runtime *runtime = substream->runtime;
483         int decimation;
484
485         spin_lock_irq(&chip->reg_lock);
486         chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);
487         decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;
488         chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;
489         if (runtime->format == SNDRV_PCM_FORMAT_S8)
490                 chip->reg_control |= CTL_DA_SBR;
491         snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
492         spin_unlock_irq(&chip->reg_lock);
493         return 0;
494 }
495
496 static int snd_bt87x_start(struct snd_bt87x *chip)
497 {
498         spin_lock(&chip->reg_lock);
499         chip->current_line = 0;
500         chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;
501         snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);
502         snd_bt87x_writel(chip, REG_PACKET_LEN,
503                          chip->line_bytes | (chip->lines << 16));
504         snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);
505         snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
506         spin_unlock(&chip->reg_lock);
507         return 0;
508 }
509
510 static int snd_bt87x_stop(struct snd_bt87x *chip)
511 {
512         spin_lock(&chip->reg_lock);
513         chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);
514         snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
515         snd_bt87x_writel(chip, REG_INT_MASK, 0);
516         snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
517         spin_unlock(&chip->reg_lock);
518         return 0;
519 }
520
521 static int snd_bt87x_trigger(struct snd_pcm_substream *substream, int cmd)
522 {
523         struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
524
525         switch (cmd) {
526         case SNDRV_PCM_TRIGGER_START:
527                 return snd_bt87x_start(chip);
528         case SNDRV_PCM_TRIGGER_STOP:
529                 return snd_bt87x_stop(chip);
530         default:
531                 return -EINVAL;
532         }
533 }
534
535 static snd_pcm_uframes_t snd_bt87x_pointer(struct snd_pcm_substream *substream)
536 {
537         struct snd_bt87x *chip = snd_pcm_substream_chip(substream);
538         struct snd_pcm_runtime *runtime = substream->runtime;
539
540         return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);
541 }
542
543 static struct snd_pcm_ops snd_bt87x_pcm_ops = {
544         .open = snd_bt87x_pcm_open,
545         .close = snd_bt87x_close,
546         .ioctl = snd_pcm_lib_ioctl,
547         .hw_params = snd_bt87x_hw_params,
548         .hw_free = snd_bt87x_hw_free,
549         .prepare = snd_bt87x_prepare,
550         .trigger = snd_bt87x_trigger,
551         .pointer = snd_bt87x_pointer,
552         .page = snd_pcm_sgbuf_ops_page,
553 };
554
555 static int snd_bt87x_capture_volume_info(struct snd_kcontrol *kcontrol,
556                                          struct snd_ctl_elem_info *info)
557 {
558         info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
559         info->count = 1;
560         info->value.integer.min = 0;
561         info->value.integer.max = 15;
562         return 0;
563 }
564
565 static int snd_bt87x_capture_volume_get(struct snd_kcontrol *kcontrol,
566                                         struct snd_ctl_elem_value *value)
567 {
568         struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
569
570         value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;
571         return 0;
572 }
573
574 static int snd_bt87x_capture_volume_put(struct snd_kcontrol *kcontrol,
575                                         struct snd_ctl_elem_value *value)
576 {
577         struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
578         u32 old_control;
579         int changed;
580
581         spin_lock_irq(&chip->reg_lock);
582         old_control = chip->reg_control;
583         chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)
584                 | (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);
585         snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
586         changed = old_control != chip->reg_control;
587         spin_unlock_irq(&chip->reg_lock);
588         return changed;
589 }
590
591 static struct snd_kcontrol_new snd_bt87x_capture_volume = {
592         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
593         .name = "Capture Volume",
594         .info = snd_bt87x_capture_volume_info,
595         .get = snd_bt87x_capture_volume_get,
596         .put = snd_bt87x_capture_volume_put,
597 };
598
599 #define snd_bt87x_capture_boost_info    snd_ctl_boolean_mono_info
600
601 static int snd_bt87x_capture_boost_get(struct snd_kcontrol *kcontrol,
602                                        struct snd_ctl_elem_value *value)
603 {
604         struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
605
606         value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);
607         return 0;
608 }
609
610 static int snd_bt87x_capture_boost_put(struct snd_kcontrol *kcontrol,
611                                        struct snd_ctl_elem_value *value)
612 {
613         struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
614         u32 old_control;
615         int changed;
616
617         spin_lock_irq(&chip->reg_lock);
618         old_control = chip->reg_control;
619         chip->reg_control = (chip->reg_control & ~CTL_A_G2X)
620                 | (value->value.integer.value[0] ? CTL_A_G2X : 0);
621         snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
622         changed = chip->reg_control != old_control;
623         spin_unlock_irq(&chip->reg_lock);
624         return changed;
625 }
626
627 static struct snd_kcontrol_new snd_bt87x_capture_boost = {
628         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
629         .name = "Capture Boost",
630         .info = snd_bt87x_capture_boost_info,
631         .get = snd_bt87x_capture_boost_get,
632         .put = snd_bt87x_capture_boost_put,
633 };
634
635 static int snd_bt87x_capture_source_info(struct snd_kcontrol *kcontrol,
636                                          struct snd_ctl_elem_info *info)
637 {
638         static char *texts[3] = {"TV Tuner", "FM", "Mic/Line"};
639
640         info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
641         info->count = 1;
642         info->value.enumerated.items = 3;
643         if (info->value.enumerated.item > 2)
644                 info->value.enumerated.item = 2;
645         strcpy(info->value.enumerated.name, texts[info->value.enumerated.item]);
646         return 0;
647 }
648
649 static int snd_bt87x_capture_source_get(struct snd_kcontrol *kcontrol,
650                                         struct snd_ctl_elem_value *value)
651 {
652         struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
653
654         value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;
655         return 0;
656 }
657
658 static int snd_bt87x_capture_source_put(struct snd_kcontrol *kcontrol,
659                                         struct snd_ctl_elem_value *value)
660 {
661         struct snd_bt87x *chip = snd_kcontrol_chip(kcontrol);
662         u32 old_control;
663         int changed;
664
665         spin_lock_irq(&chip->reg_lock);
666         old_control = chip->reg_control;
667         chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)
668                 | (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);
669         snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
670         changed = chip->reg_control != old_control;
671         spin_unlock_irq(&chip->reg_lock);
672         return changed;
673 }
674
675 static struct snd_kcontrol_new snd_bt87x_capture_source = {
676         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
677         .name = "Capture Source",
678         .info = snd_bt87x_capture_source_info,
679         .get = snd_bt87x_capture_source_get,
680         .put = snd_bt87x_capture_source_put,
681 };
682
683 static int snd_bt87x_free(struct snd_bt87x *chip)
684 {
685         if (chip->mmio)
686                 snd_bt87x_stop(chip);
687         if (chip->irq >= 0)
688                 free_irq(chip->irq, chip);
689         if (chip->mmio)
690                 iounmap(chip->mmio);
691         pci_release_regions(chip->pci);
692         pci_disable_device(chip->pci);
693         kfree(chip);
694         return 0;
695 }
696
697 static int snd_bt87x_dev_free(struct snd_device *device)
698 {
699         struct snd_bt87x *chip = device->device_data;
700         return snd_bt87x_free(chip);
701 }
702
703 static int __devinit snd_bt87x_pcm(struct snd_bt87x *chip, int device, char *name)
704 {
705         int err;
706         struct snd_pcm *pcm;
707
708         err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
709         if (err < 0)
710                 return err;
711         pcm->private_data = chip;
712         strcpy(pcm->name, name);
713         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_bt87x_pcm_ops);
714         return snd_pcm_lib_preallocate_pages_for_all(pcm,
715                                                      SNDRV_DMA_TYPE_DEV_SG,
716                                                      snd_dma_pci_data(chip->pci),
717                                                         128 * 1024,
718                                                         ALIGN(255 * 4092, 1024));
719 }
720
721 static int __devinit snd_bt87x_create(struct snd_card *card,
722                                       struct pci_dev *pci,
723                                       struct snd_bt87x **rchip)
724 {
725         struct snd_bt87x *chip;
726         int err;
727         static struct snd_device_ops ops = {
728                 .dev_free = snd_bt87x_dev_free
729         };
730
731         *rchip = NULL;
732
733         err = pci_enable_device(pci);
734         if (err < 0)
735                 return err;
736
737         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
738         if (!chip) {
739                 pci_disable_device(pci);
740                 return -ENOMEM;
741         }
742         chip->card = card;
743         chip->pci = pci;
744         chip->irq = -1;
745         spin_lock_init(&chip->reg_lock);
746
747         if ((err = pci_request_regions(pci, "Bt87x audio")) < 0) {
748                 kfree(chip);
749                 pci_disable_device(pci);
750                 return err;
751         }
752         chip->mmio = pci_ioremap_bar(pci, 0);
753         if (!chip->mmio) {
754                 snd_printk(KERN_ERR "cannot remap io memory\n");
755                 err = -ENOMEM;
756                 goto fail;
757         }
758
759         chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |
760                             CTL_PKTP_16 | (15 << CTL_DA_SDR_SHIFT);
761         chip->interrupt_mask = MY_INTERRUPTS;
762         snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);
763         snd_bt87x_writel(chip, REG_INT_MASK, 0);
764         snd_bt87x_writel(chip, REG_INT_STAT, MY_INTERRUPTS);
765
766         err = request_irq(pci->irq, snd_bt87x_interrupt, IRQF_SHARED,
767                           "Bt87x audio", chip);
768         if (err < 0) {
769                 snd_printk(KERN_ERR "cannot grab irq %d\n", pci->irq);
770                 goto fail;
771         }
772         chip->irq = pci->irq;
773         pci_set_master(pci);
774         synchronize_irq(chip->irq);
775
776         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
777         if (err < 0)
778                 goto fail;
779
780         snd_card_set_dev(card, &pci->dev);
781         *rchip = chip;
782         return 0;
783
784 fail:
785         snd_bt87x_free(chip);
786         return err;
787 }
788
789 #define BT_DEVICE(chip, subvend, subdev, id) \
790         { .vendor = PCI_VENDOR_ID_BROOKTREE, \
791           .device = chip, \
792           .subvendor = subvend, .subdevice = subdev, \
793           .driver_data = SND_BT87X_BOARD_ ## id }
794 /* driver_data is the card id for that device */
795
796 static struct pci_device_id snd_bt87x_ids[] = {
797         /* Hauppauge WinTV series */
798         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0x13eb, GENERIC),
799         /* Hauppauge WinTV series */
800         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, 0x0070, 0x13eb, GENERIC),
801         /* Viewcast Osprey 200 */
802         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff01, OSPREY2x0),
803         /* Viewcast Osprey 440 (rate is configurable via gpio) */
804         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x0070, 0xff07, OSPREY440),
805         /* ATI TV-Wonder */
806         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1002, 0x0001, GENERIC),
807         /* Leadtek Winfast tv 2000xp delux */
808         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x107d, 0x6606, GENERIC),
809         /* Voodoo TV 200 */
810         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x121a, 0x3000, GENERIC),
811         /* AVerMedia Studio No. 103, 203, ...? */
812         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1461, 0x0003, AVPHONE98),
813         /* Prolink PixelView PV-M4900 */
814         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0x1554, 0x4011, GENERIC),
815         /* Pinnacle  Studio PCTV rave */
816         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, 0xbd11, 0x1200, GENERIC),
817         { }
818 };
819 MODULE_DEVICE_TABLE(pci, snd_bt87x_ids);
820
821 /* cards known not to have audio
822  * (DVB cards use the audio function to transfer MPEG data) */
823 static struct {
824         unsigned short subvendor, subdevice;
825 } blacklist[] __devinitdata = {
826         {0x0071, 0x0101}, /* Nebula Electronics DigiTV */
827         {0x11bd, 0x001c}, /* Pinnacle PCTV Sat */
828         {0x11bd, 0x0026}, /* Pinnacle PCTV SAT CI */
829         {0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
830         {0x1461, 0x0771}, /* AVermedia DVB-T 771 */
831         {0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
832         {0x18ac, 0xd500}, /* DVICO FusionHDTV 5 Lite */
833         {0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
834         {0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
835         {0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
836         {0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
837 };
838
839 static struct pci_driver driver;
840
841 /* return the id of the card, or a negative value if it's blacklisted */
842 static int __devinit snd_bt87x_detect_card(struct pci_dev *pci)
843 {
844         int i;
845         const struct pci_device_id *supported;
846
847         supported = pci_match_id(snd_bt87x_ids, pci);
848         if (supported && supported->driver_data > 0)
849                 return supported->driver_data;
850
851         for (i = 0; i < ARRAY_SIZE(blacklist); ++i)
852                 if (blacklist[i].subvendor == pci->subsystem_vendor &&
853                     blacklist[i].subdevice == pci->subsystem_device) {
854                         snd_printdd(KERN_INFO "card %#04x-%#04x:%#04x has no audio\n",
855                                     pci->device, pci->subsystem_vendor, pci->subsystem_device);
856                         return -EBUSY;
857                 }
858
859         snd_printk(KERN_INFO "unknown card %#04x-%#04x:%#04x\n",
860                    pci->device, pci->subsystem_vendor, pci->subsystem_device);
861         snd_printk(KERN_DEBUG "please mail id, board name, and, "
862                    "if it works, the correct digital_rate option to "
863                    "<alsa-devel@alsa-project.org>\n");
864         return SND_BT87X_BOARD_UNKNOWN;
865 }
866
867 static int __devinit snd_bt87x_probe(struct pci_dev *pci,
868                                      const struct pci_device_id *pci_id)
869 {
870         static int dev;
871         struct snd_card *card;
872         struct snd_bt87x *chip;
873         int err;
874         enum snd_bt87x_boardid boardid;
875
876         if (!pci_id->driver_data) {
877                 err = snd_bt87x_detect_card(pci);
878                 if (err < 0)
879                         return -ENODEV;
880                 boardid = err;
881         } else
882                 boardid = pci_id->driver_data;
883
884         if (dev >= SNDRV_CARDS)
885                 return -ENODEV;
886         if (!enable[dev]) {
887                 ++dev;
888                 return -ENOENT;
889         }
890
891         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
892         if (err < 0)
893                 return err;
894
895         err = snd_bt87x_create(card, pci, &chip);
896         if (err < 0)
897                 goto _error;
898
899         memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));
900
901         if (!chip->board.no_digital) {
902                 if (digital_rate[dev] > 0)
903                         chip->board.dig_rate = digital_rate[dev];
904
905                 chip->reg_control |= chip->board.digital_fmt;
906
907                 err = snd_bt87x_pcm(chip, DEVICE_DIGITAL, "Bt87x Digital");
908                 if (err < 0)
909                         goto _error;
910         }
911         if (!chip->board.no_analog) {
912                 err = snd_bt87x_pcm(chip, DEVICE_ANALOG, "Bt87x Analog");
913                 if (err < 0)
914                         goto _error;
915                 err = snd_ctl_add(card, snd_ctl_new1(
916                                   &snd_bt87x_capture_volume, chip));
917                 if (err < 0)
918                         goto _error;
919                 err = snd_ctl_add(card, snd_ctl_new1(
920                                   &snd_bt87x_capture_boost, chip));
921                 if (err < 0)
922                         goto _error;
923                 err = snd_ctl_add(card, snd_ctl_new1(
924                                   &snd_bt87x_capture_source, chip));
925                 if (err < 0)
926                         goto _error;
927         }
928         snd_printk(KERN_INFO "bt87x%d: Using board %d, %sanalog, %sdigital "
929                    "(rate %d Hz)\n", dev, boardid,
930                    chip->board.no_analog ? "no " : "",
931                    chip->board.no_digital ? "no " : "", chip->board.dig_rate);
932
933         strcpy(card->driver, "Bt87x");
934         sprintf(card->shortname, "Brooktree Bt%x", pci->device);
935         sprintf(card->longname, "%s at %#llx, irq %i",
936                 card->shortname, (unsigned long long)pci_resource_start(pci, 0),
937                 chip->irq);
938         strcpy(card->mixername, "Bt87x");
939
940         err = snd_card_register(card);
941         if (err < 0)
942                 goto _error;
943
944         pci_set_drvdata(pci, card);
945         ++dev;
946         return 0;
947
948 _error:
949         snd_card_free(card);
950         return err;
951 }
952
953 static void __devexit snd_bt87x_remove(struct pci_dev *pci)
954 {
955         snd_card_free(pci_get_drvdata(pci));
956         pci_set_drvdata(pci, NULL);
957 }
958
959 /* default entries for all Bt87x cards - it's not exported */
960 /* driver_data is set to 0 to call detection */
961 static struct pci_device_id snd_bt87x_default_ids[] __devinitdata = {
962         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_878, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
963         BT_DEVICE(PCI_DEVICE_ID_BROOKTREE_879, PCI_ANY_ID, PCI_ANY_ID, UNKNOWN),
964         { }
965 };
966
967 static struct pci_driver driver = {
968         .name = "Bt87x",
969         .id_table = snd_bt87x_ids,
970         .probe = snd_bt87x_probe,
971         .remove = __devexit_p(snd_bt87x_remove),
972 };
973
974 static int __init alsa_card_bt87x_init(void)
975 {
976         if (load_all)
977                 driver.id_table = snd_bt87x_default_ids;
978         return pci_register_driver(&driver);
979 }
980
981 static void __exit alsa_card_bt87x_exit(void)
982 {
983         pci_unregister_driver(&driver);
984 }
985
986 module_init(alsa_card_bt87x_init)
987 module_exit(alsa_card_bt87x_exit)