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Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -08001/*
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -08002 * SAA713x ALSA support for V4L
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -08003 *
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -08004 *
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -08005 * Caveats:
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -08006 * - Volume doesn't work (it's always at max)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -08007 *
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -08008 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, version 2
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080021 */
22
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080023#include <sound/driver.h>
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080024#include <linux/init.h>
25#include <linux/slab.h>
26#include <linux/time.h>
27#include <linux/wait.h>
28#include <linux/moduleparam.h>
29#include <linux/module.h>
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080030#include <sound/core.h>
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080031#include <sound/control.h>
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080032#include <sound/pcm.h>
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -080033#include <sound/pcm_params.h>
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080034#include <sound/initval.h>
Nickolay V. Shmyrev871242b2005-11-13 16:07:51 -080035#include <linux/interrupt.h>
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080036
37#include "saa7134.h"
38#include "saa7134-reg.h"
39
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -080040static unsigned int debug = 0;
41module_param(debug, int, 0644);
42MODULE_PARM_DESC(debug,"enable debug messages [alsa]");
43
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -080044/*
45 * Configuration macros
46 */
47
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080048/* defaults */
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080049#define MIXER_ADDR_TVTUNER 0
50#define MIXER_ADDR_LINE1 1
51#define MIXER_ADDR_LINE2 2
52#define MIXER_ADDR_LAST 2
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080053
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -080054static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
55static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
56static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0};
57
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -080058module_param_array(index, int, NULL, 0444);
59MODULE_PARM_DESC(index, "Index value for SAA7134 capture interface(s).");
60
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -080061#define dprintk(fmt, arg...) if (debug) \
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -080062 printk(KERN_DEBUG "%s/alsa: " fmt, dev->name , ## arg)
63
64/*
65 * Main chip structure
66 */
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080067typedef struct snd_card_saa7134 {
68 snd_card_t *card;
69 spinlock_t mixer_lock;
70 int mixer_volume[MIXER_ADDR_LAST+1][2];
71 int capture_source[MIXER_ADDR_LAST+1][2];
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -080072 struct pci_dev *pci;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -080073 struct saa7134_dev *dev;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080074
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -080075 unsigned long iobase;
76 int irq;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080077
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080078 spinlock_t lock;
79} snd_card_saa7134_t;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080080
Nickolay V. Shmyrev07eef6c2005-11-08 21:38:14 -080081
82
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -080083/*
84 * PCM structure
85 */
86
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080087typedef struct snd_card_saa7134_pcm {
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -080088 struct saa7134_dev *dev;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -080089
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080090 spinlock_t lock;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -080091
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080092 snd_pcm_substream_t *substream;
93} snd_card_saa7134_pcm_t;
94
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -080095static snd_card_t *snd_saa7134_cards[SNDRV_CARDS];
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -080096
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -080097
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -080098/*
99 * saa7134 DMA audio stop
100 *
101 * Called when the capture device is released or the buffer overflows
102 *
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800103 * - Copied verbatim from saa7134-oss's dsp_dma_stop.
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800104 *
105 */
106
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800107static void saa7134_dma_stop(struct saa7134_dev *dev)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800108{
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800109 dev->dmasound.dma_blk = -1;
110 dev->dmasound.dma_running = 0;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800111 saa7134_set_dmabits(dev);
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800112}
113
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800114/*
115 * saa7134 DMA audio start
116 *
117 * Called when preparing the capture device for use
118 *
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800119 * - Copied verbatim from saa7134-oss's dsp_dma_start.
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800120 *
121 */
122
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800123static void saa7134_dma_start(struct saa7134_dev *dev)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800124{
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800125 dev->dmasound.dma_blk = 0;
126 dev->dmasound.dma_running = 1;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800127 saa7134_set_dmabits(dev);
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800128}
129
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800130/*
131 * saa7134 audio DMA IRQ handler
132 *
133 * Called whenever we get an SAA7134_IRQ_REPORT_DONE_RA3 interrupt
134 * Handles shifting between the 2 buffers, manages the read counters,
135 * and notifies ALSA when periods elapse
136 *
137 * - Mostly copied from saa7134-oss's saa7134_irq_oss_done.
138 *
139 */
140
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800141void saa7134_irq_alsa_done(struct saa7134_dev *dev, unsigned long status)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800142{
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800143 int next_blk, reg = 0;
144
145 spin_lock(&dev->slock);
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800146 if (UNSET == dev->dmasound.dma_blk) {
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800147 dprintk("irq: recording stopped\n");
148 goto done;
149 }
150 if (0 != (status & 0x0f000000))
151 dprintk("irq: lost %ld\n", (status >> 24) & 0x0f);
152 if (0 == (status & 0x10000000)) {
153 /* odd */
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800154 if (0 == (dev->dmasound.dma_blk & 0x01))
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800155 reg = SAA7134_RS_BA1(6);
156 } else {
157 /* even */
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800158 if (1 == (dev->dmasound.dma_blk & 0x01))
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800159 reg = SAA7134_RS_BA2(6);
160 }
161 if (0 == reg) {
162 dprintk("irq: field oops [%s]\n",
163 (status & 0x10000000) ? "even" : "odd");
164 goto done;
165 }
166
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800167 if (dev->dmasound.read_count >= dev->dmasound.blksize * (dev->dmasound.blocks-2)) {
168 dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count,
169 dev->dmasound.bufsize, dev->dmasound.blocks);
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800170 spin_unlock(&dev->slock);
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800171 snd_pcm_stop(dev->dmasound.substream,SNDRV_PCM_STATE_XRUN);
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800172 return;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800173 }
174
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800175 /* next block addr */
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800176 next_blk = (dev->dmasound.dma_blk + 2) % dev->dmasound.blocks;
177 saa_writel(reg,next_blk * dev->dmasound.blksize);
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800178 if (debug > 2)
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800179 dprintk("irq: ok, %s, next_blk=%d, addr=%x, blocks=%u, size=%u, read=%u\n",
180 (status & 0x10000000) ? "even" : "odd ", next_blk,
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800181 next_blk * dev->dmasound.blksize, dev->dmasound.blocks, dev->dmasound.blksize, dev->dmasound.read_count);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800182
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800183 /* update status & wake waiting readers */
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800184 dev->dmasound.dma_blk = (dev->dmasound.dma_blk + 1) % dev->dmasound.blocks;
185 dev->dmasound.read_count += dev->dmasound.blksize;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800186
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800187 dev->dmasound.recording_on = reg;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800188
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800189 if (dev->dmasound.read_count >= snd_pcm_lib_period_bytes(dev->dmasound.substream)) {
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800190 spin_unlock(&dev->slock);
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800191 snd_pcm_period_elapsed(dev->dmasound.substream);
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800192 spin_lock(&dev->slock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800193 }
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800194
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800195 done:
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800196 spin_unlock(&dev->slock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800197
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800198}
199
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800200/*
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800201 * IRQ request handler
202 *
203 * Runs along with saa7134's IRQ handler, discards anything that isn't
204 * DMA sound
205 *
206 */
207
208static irqreturn_t saa7134_alsa_irq(int irq, void *dev_id, struct pt_regs *regs)
209{
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800210 struct saa7134_dmasound *dmasound = dev_id;
211 struct saa7134_dev *dev = dmasound->priv_data;
212
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800213 unsigned long report, status;
214 int loop, handled = 0;
215
216 for (loop = 0; loop < 10; loop++) {
217 report = saa_readl(SAA7134_IRQ_REPORT);
218 status = saa_readl(SAA7134_IRQ_STATUS);
219
220 if (report & SAA7134_IRQ_REPORT_DONE_RA3) {
221 handled = 1;
222 saa_writel(SAA7134_IRQ_REPORT,report);
223 saa7134_irq_alsa_done(dev, status);
224 } else {
225 goto out;
226 }
227 }
228
229 if (loop == 10) {
230 dprintk("error! looping IRQ!");
231 }
232
233out:
234 return IRQ_RETVAL(handled);
235}
236
237/*
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800238 * ALSA capture trigger
239 *
240 * - One of the ALSA capture callbacks.
241 *
242 * Called whenever a capture is started or stopped. Must be defined,
243 * but there's nothing we want to do here
244 *
245 */
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800246
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800247static int snd_card_saa7134_capture_trigger(snd_pcm_substream_t * substream,
248 int cmd)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800249{
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800250 snd_pcm_runtime_t *runtime = substream->runtime;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800251 snd_card_saa7134_pcm_t *pcm = runtime->private_data;
252 struct saa7134_dev *dev=pcm->dev;
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800253 int err = 0;
254
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800255 spin_lock(&dev->slock);
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800256 if (cmd == SNDRV_PCM_TRIGGER_START) {
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800257 /* start dma */
258 saa7134_dma_start(dev);
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800259 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800260 /* stop dma */
261 saa7134_dma_stop(dev);
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800262 } else {
263 err = -EINVAL;
264 }
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800265 spin_unlock(&dev->slock);
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800266
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800267 return err;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800268}
269
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800270/*
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800271 * DMA buffer initialization
272 *
273 * Uses V4L functions to initialize the DMA. Shouldn't be necessary in
274 * ALSA, but I was unable to use ALSA's own DMA, and had to force the
275 * usage of V4L's
276 *
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800277 * - Copied verbatim from saa7134-oss.
278 *
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800279 */
280
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800281static int dsp_buffer_init(struct saa7134_dev *dev)
282{
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800283 int err;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800284
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800285 BUG_ON(!dev->dmasound.bufsize);
286
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800287 videobuf_dma_init(&dev->dmasound.dma);
288 err = videobuf_dma_init_kernel(&dev->dmasound.dma, PCI_DMA_FROMDEVICE,
289 (dev->dmasound.bufsize + PAGE_SIZE) >> PAGE_SHIFT);
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800290 if (0 != err)
291 return err;
292 return 0;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800293}
294
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800295/*
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800296 * DMA buffer release
297 *
298 * Called after closing the device, during snd_card_saa7134_capture_close
299 *
300 */
301
302static int dsp_buffer_free(struct saa7134_dev *dev)
303{
304 if (!dev->dmasound.blksize)
305 BUG();
306
307 videobuf_dma_free(&dev->dmasound.dma);
308
309 dev->dmasound.blocks = 0;
310 dev->dmasound.blksize = 0;
311 dev->dmasound.bufsize = 0;
312
313 return 0;
314}
315
316
317/*
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800318 * ALSA PCM preparation
319 *
320 * - One of the ALSA capture callbacks.
321 *
322 * Called right after the capture device is opened, this function configures
323 * the buffer using the previously defined functions, allocates the memory,
324 * sets up the hardware registers, and then starts the DMA. When this function
325 * returns, the audio should be flowing.
326 *
327 */
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800328
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800329static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream)
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800330{
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800331 snd_pcm_runtime_t *runtime = substream->runtime;
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800332 int bswap, sign;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800333 u32 fmt, control;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800334 snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800335 struct saa7134_dev *dev;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800336 snd_card_saa7134_pcm_t *pcm = runtime->private_data;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800337
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800338 pcm->dev->dmasound.substream = substream;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800339
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800340 dev = saa7134->dev;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800341
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800342 if (snd_pcm_format_width(runtime->format) == 8)
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800343 fmt = 0x00;
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800344 else
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800345 fmt = 0x01;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800346
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800347 if (snd_pcm_format_signed(runtime->format))
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800348 sign = 1;
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800349 else
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800350 sign = 0;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800351
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800352 if (snd_pcm_format_big_endian(runtime->format))
353 bswap = 1;
354 else
355 bswap = 0;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800356
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800357 switch (dev->pci->device) {
358 case PCI_DEVICE_ID_PHILIPS_SAA7134:
359 if (1 == runtime->channels)
360 fmt |= (1 << 3);
361 if (2 == runtime->channels)
362 fmt |= (3 << 3);
363 if (sign)
364 fmt |= 0x04;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800365
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800366 fmt |= (MIXER_ADDR_TVTUNER == dev->dmasound.input) ? 0xc0 : 0x80;
367 saa_writeb(SAA7134_NUM_SAMPLES0, ((dev->dmasound.blksize - 1) & 0x0000ff));
368 saa_writeb(SAA7134_NUM_SAMPLES1, ((dev->dmasound.blksize - 1) & 0x00ff00) >> 8);
369 saa_writeb(SAA7134_NUM_SAMPLES2, ((dev->dmasound.blksize - 1) & 0xff0000) >> 16);
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800370 saa_writeb(SAA7134_AUDIO_FORMAT_CTRL, fmt);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800371
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800372 break;
373 case PCI_DEVICE_ID_PHILIPS_SAA7133:
374 case PCI_DEVICE_ID_PHILIPS_SAA7135:
375 if (1 == runtime->channels)
376 fmt |= (1 << 4);
377 if (2 == runtime->channels)
378 fmt |= (2 << 4);
379 if (!sign)
380 fmt |= 0x04;
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800381 saa_writel(SAA7133_NUM_SAMPLES, dev->dmasound.blksize -1);
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800382 saa_writel(SAA7133_AUDIO_CHANNEL, 0x543210 | (fmt << 24));
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800383 break;
384 }
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800385
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800386 dprintk("rec_start: afmt=%d ch=%d => fmt=0x%x swap=%c\n",
387 runtime->format, runtime->channels, fmt,
388 bswap ? 'b' : '-');
389 /* dma: setup channel 6 (= AUDIO) */
390 control = SAA7134_RS_CONTROL_BURST_16 |
391 SAA7134_RS_CONTROL_ME |
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800392 (dev->dmasound.pt.dma >> 12);
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800393 if (bswap)
394 control |= SAA7134_RS_CONTROL_BSWAP;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800395
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800396 saa_writel(SAA7134_RS_BA1(6),0);
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800397 saa_writel(SAA7134_RS_BA2(6),dev->dmasound.blksize);
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800398 saa_writel(SAA7134_RS_PITCH(6),0);
399 saa_writel(SAA7134_RS_CONTROL(6),control);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800400
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800401 dev->dmasound.rate = runtime->rate;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800402
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800403 return 0;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800404
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800405}
406
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800407/*
408 * ALSA pointer fetching
409 *
410 * - One of the ALSA capture callbacks.
411 *
412 * Called whenever a period elapses, it must return the current hardware
413 * position of the buffer.
414 * Also resets the read counter used to prevent overruns
415 *
416 */
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800417
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800418static snd_pcm_uframes_t snd_card_saa7134_capture_pointer(snd_pcm_substream_t * substream)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800419{
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800420 snd_pcm_runtime_t *runtime = substream->runtime;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800421 snd_card_saa7134_pcm_t *pcm = runtime->private_data;
422 struct saa7134_dev *dev=pcm->dev;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800423
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800424 if (dev->dmasound.read_count) {
425 dev->dmasound.read_count -= snd_pcm_lib_period_bytes(substream);
426 dev->dmasound.read_offset += snd_pcm_lib_period_bytes(substream);
427 if (dev->dmasound.read_offset == dev->dmasound.bufsize)
428 dev->dmasound.read_offset = 0;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800429 }
430
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800431 return bytes_to_frames(runtime, dev->dmasound.read_offset);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800432}
433
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800434/*
435 * ALSA hardware capabilities definition
436 */
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800437
438static snd_pcm_hardware_t snd_card_saa7134_capture =
439{
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800440 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
Mauro Carvalho Chehabf2421ca2005-11-08 21:37:45 -0800441 SNDRV_PCM_INFO_BLOCK_TRANSFER |
442 SNDRV_PCM_INFO_MMAP_VALID),
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800443 .formats = SNDRV_PCM_FMTBIT_S16_LE | \
444 SNDRV_PCM_FMTBIT_S16_BE | \
445 SNDRV_PCM_FMTBIT_S8 | \
446 SNDRV_PCM_FMTBIT_U8 | \
447 SNDRV_PCM_FMTBIT_U16_LE | \
448 SNDRV_PCM_FMTBIT_U16_BE,
449 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000,
450 .rate_min = 32000,
451 .rate_max = 48000,
452 .channels_min = 1,
453 .channels_max = 2,
454 .buffer_bytes_max = (256*1024),
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800455 .period_bytes_min = 64,
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800456 .period_bytes_max = (256*1024),
457 .periods_min = 2,
458 .periods_max = 1024,
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800459};
460
461static void snd_card_saa7134_runtime_free(snd_pcm_runtime_t *runtime)
462{
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800463 snd_card_saa7134_pcm_t *pcm = runtime->private_data;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800464
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800465 kfree(pcm);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800466}
467
468
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800469/*
470 * ALSA hardware params
471 *
472 * - One of the ALSA capture callbacks.
473 *
474 * Called on initialization, right before the PCM preparation
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800475 *
476 */
477
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800478static int snd_card_saa7134_hw_params(snd_pcm_substream_t * substream,
479 snd_pcm_hw_params_t * hw_params)
480{
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800481 snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
482 struct saa7134_dev *dev;
483 unsigned int period_size, periods;
484 int err;
485
486 period_size = params_period_bytes(hw_params);
487 periods = params_periods(hw_params);
488
489 snd_assert(period_size >= 0x100 && period_size <= 0x10000,
490 return -EINVAL);
491 snd_assert(periods >= 2, return -EINVAL);
492 snd_assert(period_size * periods <= 1024 * 1024, return -EINVAL);
493
494 dev = saa7134->dev;
495
496 if (dev->dmasound.blocks == periods &&
497 dev->dmasound.blksize == period_size)
498 return 0;
499
500 /* release the old buffer */
501 if (substream->runtime->dma_area) {
502 saa7134_pgtable_free(dev->pci, &dev->dmasound.pt);
503 videobuf_dma_pci_unmap(dev->pci, &dev->dmasound.dma);
504 dsp_buffer_free(dev);
505 substream->runtime->dma_area = NULL;
506 }
507 dev->dmasound.blocks = periods;
508 dev->dmasound.blksize = period_size;
509 dev->dmasound.bufsize = period_size * periods;
510
511 err = dsp_buffer_init(dev);
512 if (0 != err) {
513 dev->dmasound.blocks = 0;
514 dev->dmasound.blksize = 0;
515 dev->dmasound.bufsize = 0;
516 return err;
517 }
518
519 if (0 != (err = videobuf_dma_pci_map(dev->pci, &dev->dmasound.dma))) {
520 dsp_buffer_free(dev);
521 return err;
522 }
523 if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->dmasound.pt))) {
524 videobuf_dma_pci_unmap(dev->pci, &dev->dmasound.dma);
525 dsp_buffer_free(dev);
526 return err;
527 }
528 if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->dmasound.pt,
529 dev->dmasound.dma.sglist,
530 dev->dmasound.dma.sglen,
531 0))) {
532 saa7134_pgtable_free(dev->pci, &dev->dmasound.pt);
533 videobuf_dma_pci_unmap(dev->pci, &dev->dmasound.dma);
534 dsp_buffer_free(dev);
535 return err;
536 }
537
538 /* I should be able to use runtime->dma_addr in the control
539 byte, but it doesn't work. So I allocate the DMA using the
540 V4L functions, and force ALSA to use that as the DMA area */
541
542 substream->runtime->dma_area = dev->dmasound.dma.vmalloc;
543
544 return 1;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800545
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800546}
547
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800548/*
549 * ALSA hardware release
550 *
551 * - One of the ALSA capture callbacks.
552 *
553 * Called after closing the device, but before snd_card_saa7134_capture_close
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800554 * It stops the DMA audio and releases the buffers.
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800555 *
556 */
557
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800558static int snd_card_saa7134_hw_free(snd_pcm_substream_t * substream)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800559{
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800560 snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
561 struct saa7134_dev *dev;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800562
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800563 dev = saa7134->dev;
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800564
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800565 if (substream->runtime->dma_area) {
566 saa7134_pgtable_free(dev->pci, &dev->dmasound.pt);
567 videobuf_dma_pci_unmap(dev->pci, &dev->dmasound.dma);
568 dsp_buffer_free(dev);
569 substream->runtime->dma_area = NULL;
570 }
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800571
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800572 return 0;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800573}
574
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800575/*
576 * ALSA capture finish
577 *
578 * - One of the ALSA capture callbacks.
579 *
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800580 * Called after closing the device.
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800581 *
582 */
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800583
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800584static int snd_card_saa7134_capture_close(snd_pcm_substream_t * substream)
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800585{
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800586 return 0;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800587}
588
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800589/*
590 * ALSA capture start
591 *
592 * - One of the ALSA capture callbacks.
593 *
594 * Called when opening the device. It creates and populates the PCM
595 * structure
596 *
597 */
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800598
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800599static int snd_card_saa7134_capture_open(snd_pcm_substream_t * substream)
600{
601 snd_pcm_runtime_t *runtime = substream->runtime;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800602 snd_card_saa7134_pcm_t *pcm;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800603 snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800604 struct saa7134_dev *dev = saa7134->dev;
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800605 int err;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800606
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800607 down(&dev->dmasound.lock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800608
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800609 dev->dmasound.read_count = 0;
610 dev->dmasound.read_offset = 0;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800611
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800612 up(&dev->dmasound.lock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800613
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800614 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
615 if (pcm == NULL)
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800616 return -ENOMEM;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800617
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800618 pcm->dev=saa7134->dev;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800619
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800620 spin_lock_init(&pcm->lock);
621
622 pcm->substream = substream;
623 runtime->private_data = pcm;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800624 runtime->private_free = snd_card_saa7134_runtime_free;
625 runtime->hw = snd_card_saa7134_capture;
626
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800627 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
628 return err;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800629
630 return 0;
631}
632
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800633/*
634 * ALSA capture callbacks definition
635 */
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800636
637static snd_pcm_ops_t snd_card_saa7134_capture_ops = {
638 .open = snd_card_saa7134_capture_open,
639 .close = snd_card_saa7134_capture_close,
640 .ioctl = snd_pcm_lib_ioctl,
641 .hw_params = snd_card_saa7134_hw_params,
642 .hw_free = snd_card_saa7134_hw_free,
643 .prepare = snd_card_saa7134_capture_prepare,
644 .trigger = snd_card_saa7134_capture_trigger,
645 .pointer = snd_card_saa7134_capture_pointer,
646};
647
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800648/*
649 * ALSA PCM setup
650 *
651 * Called when initializing the board. Sets up the name and hooks up
652 * the callbacks
653 *
654 */
655
656static int snd_card_saa7134_pcm(snd_card_saa7134_t *saa7134, int device)
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800657{
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800658 snd_pcm_t *pcm;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800659 int err;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800660
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800661 if ((err = snd_pcm_new(saa7134->card, "SAA7134 PCM", device, 0, 1, &pcm)) < 0)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800662 return err;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800663 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_card_saa7134_capture_ops);
664 pcm->private_data = saa7134;
665 pcm->info_flags = 0;
666 strcpy(pcm->name, "SAA7134 PCM");
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800667 return 0;
668}
669
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800670#define SAA713x_VOLUME(xname, xindex, addr) \
671{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
672 .info = snd_saa7134_volume_info, \
673 .get = snd_saa7134_volume_get, .put = snd_saa7134_volume_put, \
674 .private_value = addr }
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800675
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800676static int snd_saa7134_volume_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
677{
678 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
679 uinfo->count = 2;
680 uinfo->value.integer.min = 0;
681 uinfo->value.integer.max = 20;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800682 return 0;
683}
684
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800685static int snd_saa7134_volume_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800686{
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800687 snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800688 int addr = kcontrol->private_value;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800689
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800690 ucontrol->value.integer.value[0] = chip->mixer_volume[addr][0];
691 ucontrol->value.integer.value[1] = chip->mixer_volume[addr][1];
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800692 return 0;
693}
694
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800695static int snd_saa7134_volume_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
696{
697 snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800698 int change, addr = kcontrol->private_value;
699 int left, right;
700
701 left = ucontrol->value.integer.value[0];
702 if (left < 0)
703 left = 0;
704 if (left > 20)
705 left = 20;
706 right = ucontrol->value.integer.value[1];
707 if (right < 0)
708 right = 0;
709 if (right > 20)
710 right = 20;
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800711 spin_lock_irq(&chip->mixer_lock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800712 change = chip->mixer_volume[addr][0] != left ||
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800713 chip->mixer_volume[addr][1] != right;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800714 chip->mixer_volume[addr][0] = left;
715 chip->mixer_volume[addr][1] = right;
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800716 spin_unlock_irq(&chip->mixer_lock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800717 return change;
718}
719
720#define SAA713x_CAPSRC(xname, xindex, addr) \
721{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
722 .info = snd_saa7134_capsrc_info, \
723 .get = snd_saa7134_capsrc_get, .put = snd_saa7134_capsrc_put, \
724 .private_value = addr }
725
726static int snd_saa7134_capsrc_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
727{
728 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800729 uinfo->count = 2;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800730 uinfo->value.integer.min = 0;
731 uinfo->value.integer.max = 1;
732 return 0;
733}
734
735static int snd_saa7134_capsrc_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
736{
737 snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800738 int addr = kcontrol->private_value;
739
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800740 spin_lock_irq(&chip->mixer_lock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800741 ucontrol->value.integer.value[0] = chip->capture_source[addr][0];
742 ucontrol->value.integer.value[1] = chip->capture_source[addr][1];
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800743 spin_unlock_irq(&chip->mixer_lock);
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800744
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800745 return 0;
746}
747
748static int snd_saa7134_capsrc_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
749{
750 snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800751 int change, addr = kcontrol->private_value;
752 int left, right;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800753 u32 anabar, xbarin;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800754 int analog_io, rate;
755 struct saa7134_dev *dev;
756
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800757 dev = chip->dev;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800758
759 left = ucontrol->value.integer.value[0] & 1;
760 right = ucontrol->value.integer.value[1] & 1;
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800761 spin_lock_irq(&chip->mixer_lock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800762
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800763 change = chip->capture_source[addr][0] != left ||
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800764 chip->capture_source[addr][1] != right;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800765 chip->capture_source[addr][0] = left;
766 chip->capture_source[addr][1] = right;
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800767 dev->dmasound.input=addr;
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800768 spin_unlock_irq(&chip->mixer_lock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800769
770
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800771 if (change) {
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800772 switch (dev->pci->device) {
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800773
774 case PCI_DEVICE_ID_PHILIPS_SAA7134:
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800775 switch (addr) {
776 case MIXER_ADDR_TVTUNER:
777 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0xc0);
778 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
779 break;
780 case MIXER_ADDR_LINE1:
781 case MIXER_ADDR_LINE2:
782 analog_io = (MIXER_ADDR_LINE1 == addr) ? 0x00 : 0x08;
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800783 rate = (32000 == dev->dmasound.rate) ? 0x01 : 0x03;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800784 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, analog_io);
785 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0x80);
786 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, rate);
787 break;
788 }
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800789
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800790 break;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800791 case PCI_DEVICE_ID_PHILIPS_SAA7133:
792 case PCI_DEVICE_ID_PHILIPS_SAA7135:
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800793 xbarin = 0x03; // adc
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800794 anabar = 0;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800795 switch (addr) {
796 case MIXER_ADDR_TVTUNER:
797 xbarin = 0; // Demodulator
798 anabar = 2; // DACs
799 break;
800 case MIXER_ADDR_LINE1:
801 anabar = 0; // aux1, aux1
802 break;
803 case MIXER_ADDR_LINE2:
804 anabar = 9; // aux2, aux2
805 break;
806 }
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800807
808 /* output xbar always main channel */
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800809 saa_dsp_writel(dev, SAA7133_DIGITAL_OUTPUT_SEL1, 0xbbbb10);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800810
811 if (left || right) { // We've got data, turn the input on
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800812 saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1, xbarin);
813 saa_writel(SAA7133_ANALOG_IO_SELECT, anabar);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800814 } else {
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800815 saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1, 0);
816 saa_writel(SAA7133_ANALOG_IO_SELECT, 0);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800817 }
Ricardo Cerqueiraa8666232005-11-08 21:37:14 -0800818 break;
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800819 }
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800820 }
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800821
822 return change;
823}
824
825static snd_kcontrol_new_t snd_saa7134_controls[] = {
826SAA713x_VOLUME("Video Volume", 0, MIXER_ADDR_TVTUNER),
827SAA713x_CAPSRC("Video Capture Switch", 0, MIXER_ADDR_TVTUNER),
828SAA713x_VOLUME("Line Volume", 1, MIXER_ADDR_LINE1),
829SAA713x_CAPSRC("Line Capture Switch", 1, MIXER_ADDR_LINE1),
830SAA713x_VOLUME("Line Volume", 2, MIXER_ADDR_LINE2),
831SAA713x_CAPSRC("Line Capture Switch", 2, MIXER_ADDR_LINE2),
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800832};
833
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800834/*
835 * ALSA mixer setup
836 *
837 * Called when initializing the board. Sets up the name and hooks up
838 * the callbacks
839 *
840 */
841
842static int snd_card_saa7134_new_mixer(snd_card_saa7134_t * chip)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800843{
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800844 snd_card_t *card = chip->card;
845 unsigned int idx;
846 int err;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800847
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800848 snd_assert(chip != NULL, return -EINVAL);
849 strcpy(card->mixername, "SAA7134 Mixer");
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800850
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800851 for (idx = 0; idx < ARRAY_SIZE(snd_saa7134_controls); idx++) {
852 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_saa7134_controls[idx], chip))) < 0)
853 return err;
854 }
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800855 return 0;
856}
857
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800858static void snd_saa7134_free(snd_card_t * card)
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800859{
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800860 snd_card_saa7134_t *chip = card->private_data;
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800861
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800862 if (chip->dev->dmasound.priv_data == NULL)
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800863 return;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800864
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800865 if (chip->irq >= 0) {
866 synchronize_irq(chip->irq);
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800867 free_irq(chip->irq, &chip->dev->dmasound);
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800868 }
869
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800870 chip->dev->dmasound.priv_data = NULL;
871
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800872}
873
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800874/*
875 * ALSA initialization
876 *
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800877 * Called by the init routine, once for each saa7134 device present,
878 * it creates the basic structures and registers the ALSA devices
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800879 *
880 */
881
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800882int alsa_card_saa7134_create(struct saa7134_dev *dev, int devnum)
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800883{
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800884
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800885 snd_card_t *card;
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800886 snd_card_saa7134_t *chip;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800887 int err;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800888
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800889
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800890 if (devnum >= SNDRV_CARDS)
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800891 return -ENODEV;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800892 if (!enable[devnum])
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800893 return -ENODEV;
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800894
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800895 card = snd_card_new(index[devnum], id[devnum], THIS_MODULE, sizeof(snd_card_saa7134_t));
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800896
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800897 if (card == NULL)
898 return -ENOMEM;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800899
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800900 strcpy(card->driver, "SAA7134");
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800901
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800902 /* Card "creation" */
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800903
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800904 card->private_free = snd_saa7134_free;
905 chip = (snd_card_saa7134_t *) card->private_data;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800906
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800907 spin_lock_init(&chip->lock);
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800908 spin_lock_init(&chip->mixer_lock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800909
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800910 chip->dev = dev;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800911
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800912 chip->card = card;
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800913
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800914 chip->pci = dev->pci;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800915 chip->iobase = pci_resource_start(dev->pci, 0);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800916
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800917
918 err = request_irq(dev->pci->irq, saa7134_alsa_irq,
919 SA_SHIRQ | SA_INTERRUPT, dev->name,
920 (void*) &dev->dmasound);
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800921
922 if (err < 0) {
923 printk(KERN_ERR "%s: can't get IRQ %d for ALSA\n",
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800924 dev->name, dev->pci->irq);
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -0800925 goto __nodev;
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800926 }
927
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800928 chip->irq = dev->pci->irq;
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800929
Ricardo Cerqueirad5ee43a2005-11-13 16:08:10 -0800930 init_MUTEX(&dev->dmasound.lock);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800931
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800932 if ((err = snd_card_saa7134_new_mixer(chip)) < 0)
933 goto __nodev;
934
935 if ((err = snd_card_saa7134_pcm(chip, 0)) < 0)
936 goto __nodev;
Ricardo Cerqueirab2c15ea2005-11-08 21:37:14 -0800937
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800938 snd_card_set_dev(card, &chip->pci->dev);
939
940 /* End of "creation" */
941
942 strcpy(card->shortname, "SAA7134");
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800943 sprintf(card->longname, "%s at 0x%lx irq %d",
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800944 chip->dev->name, chip->iobase, chip->irq);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800945
Ricardo Cerqueiraf5b974c2005-12-01 00:51:20 -0800946 printk(KERN_INFO "%s/alsa: %s registered as card %d\n",dev->name,card->longname,index[devnum]);
947
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800948 if ((err = snd_card_register(card)) == 0) {
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800949 snd_saa7134_cards[devnum] = card;
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800950 return 0;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800951 }
952
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800953__nodev:
954 snd_card_free(card);
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -0800955 return err;
956}
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -0800957
Ricardo Cerqueiraf5b974c2005-12-01 00:51:20 -0800958
959static int alsa_device_init(struct saa7134_dev *dev)
960{
961 dev->dmasound.priv_data = dev;
962 alsa_card_saa7134_create(dev,dev->nr);
963 return 1;
964}
965
966static int alsa_device_exit(struct saa7134_dev *dev)
967{
968
969 snd_card_free(snd_saa7134_cards[dev->nr]);
970 snd_saa7134_cards[dev->nr] = NULL;
971 return 1;
972}
973
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800974/*
975 * Module initializer
976 *
977 * Loops through present saa7134 cards, and assigns an ALSA device
978 * to each one
979 *
980 */
981
982static int saa7134_alsa_init(void)
983{
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800984 struct saa7134_dev *dev = NULL;
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800985 struct list_head *list;
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800986
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800987 printk(KERN_INFO "saa7134 ALSA driver for DMA sound loaded\n");
988
989 list_for_each(list,&saa7134_devlist) {
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800990 dev = list_entry(list, struct saa7134_dev, devlist);
991 if (dev->dmasound.priv_data == NULL) {
Ricardo Cerqueiraf5b974c2005-12-01 00:51:20 -0800992 alsa_device_init(dev);
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -0800993 } else {
994 printk(KERN_ERR "saa7134 ALSA: DMA sound is being handled by OSS. ignoring %s\n",dev->name);
995 return -EBUSY;
996 }
Ricardo Cerqueirac817e762005-11-13 16:07:47 -0800997 }
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -0800998
Ricardo Cerqueiraf5b974c2005-12-01 00:51:20 -0800999 dmasound_init = alsa_device_init;
1000 dmasound_exit = alsa_device_exit;
1001
Ricardo Cerqueira4aabf632005-11-13 16:08:00 -08001002 if (dev == NULL)
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -08001003 printk(KERN_INFO "saa7134 ALSA: no saa7134 cards found\n");
1004
1005 return 0;
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -08001006}
1007
1008/*
1009 * Module destructor
1010 */
1011
1012void saa7134_alsa_exit(void)
Ricardo Cerqueirabd15eba2005-11-08 21:37:11 -08001013{
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -08001014 int idx;
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -08001015
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -08001016 for (idx = 0; idx < SNDRV_CARDS; idx++) {
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -08001017 snd_card_free(snd_saa7134_cards[idx]);
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -08001018 }
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -08001019
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -08001020 printk(KERN_INFO "saa7134 ALSA driver for DMA sound unloaded\n");
Ricardo Cerqueirab54134b2005-11-08 21:38:54 -08001021
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -08001022 return;
Nickolay V. Shmyrev5f7591c2005-11-08 21:37:04 -08001023}
Ricardo Cerqueira79dd0c692005-11-08 21:38:53 -08001024
1025module_init(saa7134_alsa_init);
1026module_exit(saa7134_alsa_exit);
1027MODULE_LICENSE("GPL");
1028MODULE_AUTHOR("Ricardo Cerqueira");