Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 1 | /* |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 2 | * SAA713x ALSA support for V4L |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 3 | * |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 4 | * |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 5 | * Caveats: |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 6 | * - Volume doesn't work (it's always at max) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 7 | * |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation, 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. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 21 | */ |
| 22 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 23 | #include <linux/init.h> |
| 24 | #include <linux/slab.h> |
| 25 | #include <linux/time.h> |
| 26 | #include <linux/wait.h> |
| 27 | #include <linux/moduleparam.h> |
| 28 | #include <linux/module.h> |
Mauro Carvalho Chehab | d21838d | 2006-01-09 15:25:21 -0200 | [diff] [blame] | 29 | #include <sound/driver.h> |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 30 | #include <sound/core.h> |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 31 | #include <sound/control.h> |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 32 | #include <sound/pcm.h> |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 33 | #include <sound/pcm_params.h> |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 34 | #include <sound/initval.h> |
Nickolay V. Shmyrev | 871242b | 2005-11-13 16:07:51 -0800 | [diff] [blame] | 35 | #include <linux/interrupt.h> |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 36 | |
| 37 | #include "saa7134.h" |
| 38 | #include "saa7134-reg.h" |
| 39 | |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 40 | static unsigned int debug = 0; |
| 41 | module_param(debug, int, 0644); |
| 42 | MODULE_PARM_DESC(debug,"enable debug messages [alsa]"); |
| 43 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 44 | /* |
| 45 | * Configuration macros |
| 46 | */ |
| 47 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 48 | /* defaults */ |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 49 | #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. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 53 | |
Mauro Carvalho Chehab | 674434c | 2005-12-12 00:37:28 -0800 | [diff] [blame] | 54 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 55 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| 56 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
Ricardo Cerqueira | ede2241 | 2006-02-27 00:08:11 -0300 | [diff] [blame] | 57 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 58 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 59 | module_param_array(index, int, NULL, 0444); |
Ricardo Cerqueira | ede2241 | 2006-02-27 00:08:11 -0300 | [diff] [blame] | 60 | module_param_array(enable, int, NULL, 0444); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 61 | MODULE_PARM_DESC(index, "Index value for SAA7134 capture interface(s)."); |
Ricardo Cerqueira | ede2241 | 2006-02-27 00:08:11 -0300 | [diff] [blame] | 62 | MODULE_PARM_DESC(enable, "Enable (or not) the SAA7134 capture interface(s)."); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 63 | |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 64 | #define dprintk(fmt, arg...) if (debug) \ |
Jean Delvare | f85c657 | 2005-12-19 08:53:59 -0200 | [diff] [blame] | 65 | printk(KERN_DEBUG "%s/alsa: " fmt, dev->name , ##arg) |
Mauro Carvalho Chehab | 674434c | 2005-12-12 00:37:28 -0800 | [diff] [blame] | 66 | |
| 67 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 68 | |
| 69 | /* |
| 70 | * Main chip structure |
| 71 | */ |
Mauro Carvalho Chehab | 674434c | 2005-12-12 00:37:28 -0800 | [diff] [blame] | 72 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 73 | typedef struct snd_card_saa7134 { |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 74 | struct snd_card *card; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 75 | spinlock_t mixer_lock; |
| 76 | int mixer_volume[MIXER_ADDR_LAST+1][2]; |
| 77 | int capture_source[MIXER_ADDR_LAST+1][2]; |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 78 | struct pci_dev *pci; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 79 | struct saa7134_dev *dev; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 80 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 81 | unsigned long iobase; |
| 82 | int irq; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 83 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 84 | spinlock_t lock; |
| 85 | } snd_card_saa7134_t; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 86 | |
Nickolay V. Shmyrev | 07eef6c | 2005-11-08 21:38:14 -0800 | [diff] [blame] | 87 | |
| 88 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 89 | /* |
| 90 | * PCM structure |
| 91 | */ |
| 92 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 93 | typedef struct snd_card_saa7134_pcm { |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 94 | struct saa7134_dev *dev; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 95 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 96 | spinlock_t lock; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 97 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 98 | struct snd_pcm_substream *substream; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 99 | } snd_card_saa7134_pcm_t; |
| 100 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 101 | static struct snd_card *snd_saa7134_cards[SNDRV_CARDS]; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 102 | |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 103 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 104 | /* |
| 105 | * saa7134 DMA audio stop |
| 106 | * |
| 107 | * Called when the capture device is released or the buffer overflows |
| 108 | * |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 109 | * - Copied verbatim from saa7134-oss's dsp_dma_stop. |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 110 | * |
| 111 | */ |
| 112 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 113 | static void saa7134_dma_stop(struct saa7134_dev *dev) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 114 | { |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 115 | dev->dmasound.dma_blk = -1; |
| 116 | dev->dmasound.dma_running = 0; |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 117 | saa7134_set_dmabits(dev); |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 118 | } |
| 119 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 120 | /* |
| 121 | * saa7134 DMA audio start |
| 122 | * |
| 123 | * Called when preparing the capture device for use |
| 124 | * |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 125 | * - Copied verbatim from saa7134-oss's dsp_dma_start. |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 126 | * |
| 127 | */ |
| 128 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 129 | static void saa7134_dma_start(struct saa7134_dev *dev) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 130 | { |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 131 | dev->dmasound.dma_blk = 0; |
| 132 | dev->dmasound.dma_running = 1; |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 133 | saa7134_set_dmabits(dev); |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 134 | } |
| 135 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 136 | /* |
| 137 | * saa7134 audio DMA IRQ handler |
| 138 | * |
| 139 | * Called whenever we get an SAA7134_IRQ_REPORT_DONE_RA3 interrupt |
| 140 | * Handles shifting between the 2 buffers, manages the read counters, |
| 141 | * and notifies ALSA when periods elapse |
| 142 | * |
| 143 | * - Mostly copied from saa7134-oss's saa7134_irq_oss_done. |
| 144 | * |
| 145 | */ |
| 146 | |
Adrian Bunk | 943a490 | 2005-12-01 00:51:35 -0800 | [diff] [blame] | 147 | static void saa7134_irq_alsa_done(struct saa7134_dev *dev, |
| 148 | unsigned long status) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 149 | { |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 150 | int next_blk, reg = 0; |
| 151 | |
| 152 | spin_lock(&dev->slock); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 153 | if (UNSET == dev->dmasound.dma_blk) { |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 154 | dprintk("irq: recording stopped\n"); |
| 155 | goto done; |
| 156 | } |
| 157 | if (0 != (status & 0x0f000000)) |
| 158 | dprintk("irq: lost %ld\n", (status >> 24) & 0x0f); |
| 159 | if (0 == (status & 0x10000000)) { |
| 160 | /* odd */ |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 161 | if (0 == (dev->dmasound.dma_blk & 0x01)) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 162 | reg = SAA7134_RS_BA1(6); |
| 163 | } else { |
| 164 | /* even */ |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 165 | if (1 == (dev->dmasound.dma_blk & 0x01)) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 166 | reg = SAA7134_RS_BA2(6); |
| 167 | } |
| 168 | if (0 == reg) { |
| 169 | dprintk("irq: field oops [%s]\n", |
| 170 | (status & 0x10000000) ? "even" : "odd"); |
| 171 | goto done; |
| 172 | } |
| 173 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 174 | if (dev->dmasound.read_count >= dev->dmasound.blksize * (dev->dmasound.blocks-2)) { |
| 175 | dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count, |
| 176 | dev->dmasound.bufsize, dev->dmasound.blocks); |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 177 | spin_unlock(&dev->slock); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 178 | snd_pcm_stop(dev->dmasound.substream,SNDRV_PCM_STATE_XRUN); |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 179 | return; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 180 | } |
| 181 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 182 | /* next block addr */ |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 183 | next_blk = (dev->dmasound.dma_blk + 2) % dev->dmasound.blocks; |
| 184 | saa_writel(reg,next_blk * dev->dmasound.blksize); |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 185 | if (debug > 2) |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 186 | dprintk("irq: ok, %s, next_blk=%d, addr=%x, blocks=%u, size=%u, read=%u\n", |
| 187 | (status & 0x10000000) ? "even" : "odd ", next_blk, |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 188 | next_blk * dev->dmasound.blksize, dev->dmasound.blocks, dev->dmasound.blksize, dev->dmasound.read_count); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 189 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 190 | /* update status & wake waiting readers */ |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 191 | dev->dmasound.dma_blk = (dev->dmasound.dma_blk + 1) % dev->dmasound.blocks; |
| 192 | dev->dmasound.read_count += dev->dmasound.blksize; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 193 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 194 | dev->dmasound.recording_on = reg; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 195 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 196 | if (dev->dmasound.read_count >= snd_pcm_lib_period_bytes(dev->dmasound.substream)) { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 197 | spin_unlock(&dev->slock); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 198 | snd_pcm_period_elapsed(dev->dmasound.substream); |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 199 | spin_lock(&dev->slock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 200 | } |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 201 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 202 | done: |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 203 | spin_unlock(&dev->slock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 204 | |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 205 | } |
| 206 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 207 | /* |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 208 | * IRQ request handler |
| 209 | * |
| 210 | * Runs along with saa7134's IRQ handler, discards anything that isn't |
| 211 | * DMA sound |
| 212 | * |
| 213 | */ |
| 214 | |
| 215 | static irqreturn_t saa7134_alsa_irq(int irq, void *dev_id, struct pt_regs *regs) |
| 216 | { |
Mauro Carvalho Chehab | afd1a0c | 2005-12-12 00:37:27 -0800 | [diff] [blame] | 217 | struct saa7134_dmasound *dmasound = dev_id; |
| 218 | struct saa7134_dev *dev = dmasound->priv_data; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 219 | |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 220 | unsigned long report, status; |
| 221 | int loop, handled = 0; |
| 222 | |
| 223 | for (loop = 0; loop < 10; loop++) { |
| 224 | report = saa_readl(SAA7134_IRQ_REPORT); |
| 225 | status = saa_readl(SAA7134_IRQ_STATUS); |
| 226 | |
| 227 | if (report & SAA7134_IRQ_REPORT_DONE_RA3) { |
| 228 | handled = 1; |
| 229 | saa_writel(SAA7134_IRQ_REPORT,report); |
| 230 | saa7134_irq_alsa_done(dev, status); |
| 231 | } else { |
| 232 | goto out; |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | if (loop == 10) { |
| 237 | dprintk("error! looping IRQ!"); |
| 238 | } |
| 239 | |
| 240 | out: |
| 241 | return IRQ_RETVAL(handled); |
| 242 | } |
| 243 | |
| 244 | /* |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 245 | * ALSA capture trigger |
| 246 | * |
| 247 | * - One of the ALSA capture callbacks. |
| 248 | * |
| 249 | * Called whenever a capture is started or stopped. Must be defined, |
| 250 | * but there's nothing we want to do here |
| 251 | * |
| 252 | */ |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 253 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 254 | static int snd_card_saa7134_capture_trigger(struct snd_pcm_substream * substream, |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 255 | int cmd) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 256 | { |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 257 | struct snd_pcm_runtime *runtime = substream->runtime; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 258 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
| 259 | struct saa7134_dev *dev=pcm->dev; |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 260 | int err = 0; |
| 261 | |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 262 | spin_lock(&dev->slock); |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 263 | if (cmd == SNDRV_PCM_TRIGGER_START) { |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 264 | /* start dma */ |
| 265 | saa7134_dma_start(dev); |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 266 | } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 267 | /* stop dma */ |
| 268 | saa7134_dma_stop(dev); |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 269 | } else { |
| 270 | err = -EINVAL; |
| 271 | } |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 272 | spin_unlock(&dev->slock); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 273 | |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 274 | return err; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 275 | } |
| 276 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 277 | /* |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 278 | * DMA buffer initialization |
| 279 | * |
| 280 | * Uses V4L functions to initialize the DMA. Shouldn't be necessary in |
| 281 | * ALSA, but I was unable to use ALSA's own DMA, and had to force the |
| 282 | * usage of V4L's |
| 283 | * |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 284 | * - Copied verbatim from saa7134-oss. |
| 285 | * |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 286 | */ |
| 287 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 288 | static int dsp_buffer_init(struct saa7134_dev *dev) |
| 289 | { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 290 | int err; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 291 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 292 | BUG_ON(!dev->dmasound.bufsize); |
| 293 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 294 | videobuf_dma_init(&dev->dmasound.dma); |
| 295 | err = videobuf_dma_init_kernel(&dev->dmasound.dma, PCI_DMA_FROMDEVICE, |
| 296 | (dev->dmasound.bufsize + PAGE_SIZE) >> PAGE_SHIFT); |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 297 | if (0 != err) |
| 298 | return err; |
| 299 | return 0; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 300 | } |
| 301 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 302 | /* |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 303 | * DMA buffer release |
| 304 | * |
| 305 | * Called after closing the device, during snd_card_saa7134_capture_close |
| 306 | * |
| 307 | */ |
| 308 | |
| 309 | static int dsp_buffer_free(struct saa7134_dev *dev) |
| 310 | { |
Eric Sesterhenn | ae24601 | 2006-03-13 13:17:11 -0300 | [diff] [blame] | 311 | BUG_ON(!dev->dmasound.blksize); |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 312 | |
| 313 | videobuf_dma_free(&dev->dmasound.dma); |
| 314 | |
| 315 | dev->dmasound.blocks = 0; |
| 316 | dev->dmasound.blksize = 0; |
| 317 | dev->dmasound.bufsize = 0; |
| 318 | |
| 319 | return 0; |
| 320 | } |
| 321 | |
| 322 | |
| 323 | /* |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 324 | * ALSA PCM preparation |
| 325 | * |
| 326 | * - One of the ALSA capture callbacks. |
| 327 | * |
| 328 | * Called right after the capture device is opened, this function configures |
| 329 | * the buffer using the previously defined functions, allocates the memory, |
| 330 | * sets up the hardware registers, and then starts the DMA. When this function |
| 331 | * returns, the audio should be flowing. |
| 332 | * |
| 333 | */ |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 334 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 335 | static int snd_card_saa7134_capture_prepare(struct snd_pcm_substream * substream) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 336 | { |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 337 | struct snd_pcm_runtime *runtime = substream->runtime; |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 338 | int bswap, sign; |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 339 | u32 fmt, control; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 340 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 341 | struct saa7134_dev *dev; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 342 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 343 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 344 | pcm->dev->dmasound.substream = substream; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 345 | |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 346 | dev = saa7134->dev; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 347 | |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 348 | if (snd_pcm_format_width(runtime->format) == 8) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 349 | fmt = 0x00; |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 350 | else |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 351 | fmt = 0x01; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 352 | |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 353 | if (snd_pcm_format_signed(runtime->format)) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 354 | sign = 1; |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 355 | else |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 356 | sign = 0; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 357 | |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 358 | if (snd_pcm_format_big_endian(runtime->format)) |
| 359 | bswap = 1; |
| 360 | else |
| 361 | bswap = 0; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 362 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 363 | switch (dev->pci->device) { |
| 364 | case PCI_DEVICE_ID_PHILIPS_SAA7134: |
| 365 | if (1 == runtime->channels) |
| 366 | fmt |= (1 << 3); |
| 367 | if (2 == runtime->channels) |
| 368 | fmt |= (3 << 3); |
| 369 | if (sign) |
| 370 | fmt |= 0x04; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 371 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 372 | fmt |= (MIXER_ADDR_TVTUNER == dev->dmasound.input) ? 0xc0 : 0x80; |
| 373 | saa_writeb(SAA7134_NUM_SAMPLES0, ((dev->dmasound.blksize - 1) & 0x0000ff)); |
| 374 | saa_writeb(SAA7134_NUM_SAMPLES1, ((dev->dmasound.blksize - 1) & 0x00ff00) >> 8); |
| 375 | saa_writeb(SAA7134_NUM_SAMPLES2, ((dev->dmasound.blksize - 1) & 0xff0000) >> 16); |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 376 | saa_writeb(SAA7134_AUDIO_FORMAT_CTRL, fmt); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 377 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 378 | break; |
| 379 | case PCI_DEVICE_ID_PHILIPS_SAA7133: |
| 380 | case PCI_DEVICE_ID_PHILIPS_SAA7135: |
| 381 | if (1 == runtime->channels) |
| 382 | fmt |= (1 << 4); |
| 383 | if (2 == runtime->channels) |
| 384 | fmt |= (2 << 4); |
| 385 | if (!sign) |
| 386 | fmt |= 0x04; |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 387 | saa_writel(SAA7133_NUM_SAMPLES, dev->dmasound.blksize -1); |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 388 | saa_writel(SAA7133_AUDIO_CHANNEL, 0x543210 | (fmt << 24)); |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 389 | break; |
| 390 | } |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 391 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 392 | dprintk("rec_start: afmt=%d ch=%d => fmt=0x%x swap=%c\n", |
| 393 | runtime->format, runtime->channels, fmt, |
| 394 | bswap ? 'b' : '-'); |
| 395 | /* dma: setup channel 6 (= AUDIO) */ |
| 396 | control = SAA7134_RS_CONTROL_BURST_16 | |
| 397 | SAA7134_RS_CONTROL_ME | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 398 | (dev->dmasound.pt.dma >> 12); |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 399 | if (bswap) |
| 400 | control |= SAA7134_RS_CONTROL_BSWAP; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 401 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 402 | saa_writel(SAA7134_RS_BA1(6),0); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 403 | saa_writel(SAA7134_RS_BA2(6),dev->dmasound.blksize); |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 404 | saa_writel(SAA7134_RS_PITCH(6),0); |
| 405 | saa_writel(SAA7134_RS_CONTROL(6),control); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 406 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 407 | dev->dmasound.rate = runtime->rate; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 408 | |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 409 | return 0; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 410 | |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 411 | } |
| 412 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 413 | /* |
| 414 | * ALSA pointer fetching |
| 415 | * |
| 416 | * - One of the ALSA capture callbacks. |
| 417 | * |
| 418 | * Called whenever a period elapses, it must return the current hardware |
| 419 | * position of the buffer. |
| 420 | * Also resets the read counter used to prevent overruns |
| 421 | * |
| 422 | */ |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 423 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 424 | static snd_pcm_uframes_t |
| 425 | snd_card_saa7134_capture_pointer(struct snd_pcm_substream * substream) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 426 | { |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 427 | struct snd_pcm_runtime *runtime = substream->runtime; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 428 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
| 429 | struct saa7134_dev *dev=pcm->dev; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 430 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 431 | if (dev->dmasound.read_count) { |
| 432 | dev->dmasound.read_count -= snd_pcm_lib_period_bytes(substream); |
| 433 | dev->dmasound.read_offset += snd_pcm_lib_period_bytes(substream); |
| 434 | if (dev->dmasound.read_offset == dev->dmasound.bufsize) |
| 435 | dev->dmasound.read_offset = 0; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 436 | } |
| 437 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 438 | return bytes_to_frames(runtime, dev->dmasound.read_offset); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 439 | } |
| 440 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 441 | /* |
| 442 | * ALSA hardware capabilities definition |
| 443 | */ |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 444 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 445 | static struct snd_pcm_hardware snd_card_saa7134_capture = |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 446 | { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 447 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
Mauro Carvalho Chehab | f2421ca | 2005-11-08 21:37:45 -0800 | [diff] [blame] | 448 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| 449 | SNDRV_PCM_INFO_MMAP_VALID), |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 450 | .formats = SNDRV_PCM_FMTBIT_S16_LE | \ |
| 451 | SNDRV_PCM_FMTBIT_S16_BE | \ |
| 452 | SNDRV_PCM_FMTBIT_S8 | \ |
| 453 | SNDRV_PCM_FMTBIT_U8 | \ |
| 454 | SNDRV_PCM_FMTBIT_U16_LE | \ |
| 455 | SNDRV_PCM_FMTBIT_U16_BE, |
| 456 | .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000, |
| 457 | .rate_min = 32000, |
| 458 | .rate_max = 48000, |
| 459 | .channels_min = 1, |
| 460 | .channels_max = 2, |
| 461 | .buffer_bytes_max = (256*1024), |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 462 | .period_bytes_min = 64, |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 463 | .period_bytes_max = (256*1024), |
| 464 | .periods_min = 2, |
| 465 | .periods_max = 1024, |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 466 | }; |
| 467 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 468 | static void snd_card_saa7134_runtime_free(struct snd_pcm_runtime *runtime) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 469 | { |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 470 | snd_card_saa7134_pcm_t *pcm = runtime->private_data; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 471 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 472 | kfree(pcm); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 473 | } |
| 474 | |
| 475 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 476 | /* |
| 477 | * ALSA hardware params |
| 478 | * |
| 479 | * - One of the ALSA capture callbacks. |
| 480 | * |
| 481 | * Called on initialization, right before the PCM preparation |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 482 | * |
| 483 | */ |
| 484 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 485 | static int snd_card_saa7134_hw_params(struct snd_pcm_substream * substream, |
| 486 | struct snd_pcm_hw_params * hw_params) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 487 | { |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 488 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
| 489 | struct saa7134_dev *dev; |
| 490 | unsigned int period_size, periods; |
| 491 | int err; |
| 492 | |
| 493 | period_size = params_period_bytes(hw_params); |
| 494 | periods = params_periods(hw_params); |
| 495 | |
| 496 | snd_assert(period_size >= 0x100 && period_size <= 0x10000, |
| 497 | return -EINVAL); |
| 498 | snd_assert(periods >= 2, return -EINVAL); |
| 499 | snd_assert(period_size * periods <= 1024 * 1024, return -EINVAL); |
| 500 | |
| 501 | dev = saa7134->dev; |
| 502 | |
| 503 | if (dev->dmasound.blocks == periods && |
| 504 | dev->dmasound.blksize == period_size) |
| 505 | return 0; |
| 506 | |
| 507 | /* release the old buffer */ |
| 508 | if (substream->runtime->dma_area) { |
| 509 | saa7134_pgtable_free(dev->pci, &dev->dmasound.pt); |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 510 | videobuf_pci_dma_unmap(dev->pci, &dev->dmasound.dma); |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 511 | dsp_buffer_free(dev); |
| 512 | substream->runtime->dma_area = NULL; |
| 513 | } |
| 514 | dev->dmasound.blocks = periods; |
| 515 | dev->dmasound.blksize = period_size; |
| 516 | dev->dmasound.bufsize = period_size * periods; |
| 517 | |
| 518 | err = dsp_buffer_init(dev); |
| 519 | if (0 != err) { |
| 520 | dev->dmasound.blocks = 0; |
| 521 | dev->dmasound.blksize = 0; |
| 522 | dev->dmasound.bufsize = 0; |
| 523 | return err; |
| 524 | } |
| 525 | |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 526 | if (0 != (err = videobuf_pci_dma_map(dev->pci, &dev->dmasound.dma))) { |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 527 | dsp_buffer_free(dev); |
| 528 | return err; |
| 529 | } |
| 530 | if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->dmasound.pt))) { |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 531 | videobuf_pci_dma_unmap(dev->pci, &dev->dmasound.dma); |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 532 | dsp_buffer_free(dev); |
| 533 | return err; |
| 534 | } |
| 535 | if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->dmasound.pt, |
| 536 | dev->dmasound.dma.sglist, |
| 537 | dev->dmasound.dma.sglen, |
| 538 | 0))) { |
| 539 | saa7134_pgtable_free(dev->pci, &dev->dmasound.pt); |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 540 | videobuf_pci_dma_unmap(dev->pci, &dev->dmasound.dma); |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 541 | dsp_buffer_free(dev); |
| 542 | return err; |
| 543 | } |
| 544 | |
| 545 | /* I should be able to use runtime->dma_addr in the control |
| 546 | byte, but it doesn't work. So I allocate the DMA using the |
| 547 | V4L functions, and force ALSA to use that as the DMA area */ |
| 548 | |
| 549 | substream->runtime->dma_area = dev->dmasound.dma.vmalloc; |
| 550 | |
| 551 | return 1; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 552 | |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 553 | } |
| 554 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 555 | /* |
| 556 | * ALSA hardware release |
| 557 | * |
| 558 | * - One of the ALSA capture callbacks. |
| 559 | * |
| 560 | * Called after closing the device, but before snd_card_saa7134_capture_close |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 561 | * It stops the DMA audio and releases the buffers. |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 562 | * |
| 563 | */ |
| 564 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 565 | static int snd_card_saa7134_hw_free(struct snd_pcm_substream * substream) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 566 | { |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 567 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
| 568 | struct saa7134_dev *dev; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 569 | |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 570 | dev = saa7134->dev; |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 571 | |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 572 | if (substream->runtime->dma_area) { |
| 573 | saa7134_pgtable_free(dev->pci, &dev->dmasound.pt); |
Mauro Carvalho Chehab | c7b0ac0 | 2006-03-10 12:29:15 -0300 | [diff] [blame] | 574 | videobuf_pci_dma_unmap(dev->pci, &dev->dmasound.dma); |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 575 | dsp_buffer_free(dev); |
| 576 | substream->runtime->dma_area = NULL; |
| 577 | } |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 578 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 579 | return 0; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 580 | } |
| 581 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 582 | /* |
| 583 | * ALSA capture finish |
| 584 | * |
| 585 | * - One of the ALSA capture callbacks. |
| 586 | * |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 587 | * Called after closing the device. |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 588 | * |
| 589 | */ |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 590 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 591 | static int snd_card_saa7134_capture_close(struct snd_pcm_substream * substream) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 592 | { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 593 | return 0; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 594 | } |
| 595 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 596 | /* |
| 597 | * ALSA capture start |
| 598 | * |
| 599 | * - One of the ALSA capture callbacks. |
| 600 | * |
| 601 | * Called when opening the device. It creates and populates the PCM |
| 602 | * structure |
| 603 | * |
| 604 | */ |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 605 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 606 | static int snd_card_saa7134_capture_open(struct snd_pcm_substream * substream) |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 607 | { |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 608 | struct snd_pcm_runtime *runtime = substream->runtime; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 609 | snd_card_saa7134_pcm_t *pcm; |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 610 | snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 611 | struct saa7134_dev *dev = saa7134->dev; |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 612 | int err; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 613 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 614 | mutex_lock(&dev->dmasound.lock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 615 | |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 616 | dev->dmasound.read_count = 0; |
| 617 | dev->dmasound.read_offset = 0; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 618 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 619 | mutex_unlock(&dev->dmasound.lock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 620 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 621 | pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); |
| 622 | if (pcm == NULL) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 623 | return -ENOMEM; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 624 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 625 | pcm->dev=saa7134->dev; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 626 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 627 | spin_lock_init(&pcm->lock); |
| 628 | |
| 629 | pcm->substream = substream; |
| 630 | runtime->private_data = pcm; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 631 | runtime->private_free = snd_card_saa7134_runtime_free; |
| 632 | runtime->hw = snd_card_saa7134_capture; |
| 633 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 634 | if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) |
| 635 | return err; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 636 | |
| 637 | return 0; |
| 638 | } |
| 639 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 640 | /* |
| 641 | * ALSA capture callbacks definition |
| 642 | */ |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 643 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 644 | static struct snd_pcm_ops snd_card_saa7134_capture_ops = { |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 645 | .open = snd_card_saa7134_capture_open, |
| 646 | .close = snd_card_saa7134_capture_close, |
| 647 | .ioctl = snd_pcm_lib_ioctl, |
| 648 | .hw_params = snd_card_saa7134_hw_params, |
| 649 | .hw_free = snd_card_saa7134_hw_free, |
| 650 | .prepare = snd_card_saa7134_capture_prepare, |
| 651 | .trigger = snd_card_saa7134_capture_trigger, |
| 652 | .pointer = snd_card_saa7134_capture_pointer, |
| 653 | }; |
| 654 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 655 | /* |
| 656 | * ALSA PCM setup |
| 657 | * |
| 658 | * Called when initializing the board. Sets up the name and hooks up |
| 659 | * the callbacks |
| 660 | * |
| 661 | */ |
| 662 | |
| 663 | static int snd_card_saa7134_pcm(snd_card_saa7134_t *saa7134, int device) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 664 | { |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 665 | struct snd_pcm *pcm; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 666 | int err; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 667 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 668 | if ((err = snd_pcm_new(saa7134->card, "SAA7134 PCM", device, 0, 1, &pcm)) < 0) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 669 | return err; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 670 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_card_saa7134_capture_ops); |
| 671 | pcm->private_data = saa7134; |
| 672 | pcm->info_flags = 0; |
| 673 | strcpy(pcm->name, "SAA7134 PCM"); |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 674 | return 0; |
| 675 | } |
| 676 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 677 | #define SAA713x_VOLUME(xname, xindex, addr) \ |
| 678 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ |
| 679 | .info = snd_saa7134_volume_info, \ |
| 680 | .get = snd_saa7134_volume_get, .put = snd_saa7134_volume_put, \ |
| 681 | .private_value = addr } |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 682 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 683 | static int snd_saa7134_volume_info(struct snd_kcontrol * kcontrol, |
| 684 | struct snd_ctl_elem_info * uinfo) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 685 | { |
| 686 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 687 | uinfo->count = 2; |
| 688 | uinfo->value.integer.min = 0; |
| 689 | uinfo->value.integer.max = 20; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 690 | return 0; |
| 691 | } |
| 692 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 693 | static int snd_saa7134_volume_get(struct snd_kcontrol * kcontrol, |
| 694 | struct snd_ctl_elem_value * ucontrol) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 695 | { |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 696 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 697 | int addr = kcontrol->private_value; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 698 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 699 | ucontrol->value.integer.value[0] = chip->mixer_volume[addr][0]; |
| 700 | ucontrol->value.integer.value[1] = chip->mixer_volume[addr][1]; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 701 | return 0; |
| 702 | } |
| 703 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 704 | static int snd_saa7134_volume_put(struct snd_kcontrol * kcontrol, |
| 705 | struct snd_ctl_elem_value * ucontrol) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 706 | { |
| 707 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 708 | int change, addr = kcontrol->private_value; |
| 709 | int left, right; |
| 710 | |
| 711 | left = ucontrol->value.integer.value[0]; |
| 712 | if (left < 0) |
| 713 | left = 0; |
| 714 | if (left > 20) |
| 715 | left = 20; |
| 716 | right = ucontrol->value.integer.value[1]; |
| 717 | if (right < 0) |
| 718 | right = 0; |
| 719 | if (right > 20) |
| 720 | right = 20; |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 721 | spin_lock_irq(&chip->mixer_lock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 722 | change = chip->mixer_volume[addr][0] != left || |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 723 | chip->mixer_volume[addr][1] != right; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 724 | chip->mixer_volume[addr][0] = left; |
| 725 | chip->mixer_volume[addr][1] = right; |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 726 | spin_unlock_irq(&chip->mixer_lock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 727 | return change; |
| 728 | } |
| 729 | |
| 730 | #define SAA713x_CAPSRC(xname, xindex, addr) \ |
| 731 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ |
| 732 | .info = snd_saa7134_capsrc_info, \ |
| 733 | .get = snd_saa7134_capsrc_get, .put = snd_saa7134_capsrc_put, \ |
| 734 | .private_value = addr } |
| 735 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 736 | static int snd_saa7134_capsrc_info(struct snd_kcontrol * kcontrol, |
| 737 | struct snd_ctl_elem_info * uinfo) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 738 | { |
| 739 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 740 | uinfo->count = 2; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 741 | uinfo->value.integer.min = 0; |
| 742 | uinfo->value.integer.max = 1; |
| 743 | return 0; |
| 744 | } |
| 745 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 746 | static int snd_saa7134_capsrc_get(struct snd_kcontrol * kcontrol, |
| 747 | struct snd_ctl_elem_value * ucontrol) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 748 | { |
| 749 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 750 | int addr = kcontrol->private_value; |
| 751 | |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 752 | spin_lock_irq(&chip->mixer_lock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 753 | ucontrol->value.integer.value[0] = chip->capture_source[addr][0]; |
| 754 | ucontrol->value.integer.value[1] = chip->capture_source[addr][1]; |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 755 | spin_unlock_irq(&chip->mixer_lock); |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 756 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 757 | return 0; |
| 758 | } |
| 759 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 760 | static int snd_saa7134_capsrc_put(struct snd_kcontrol * kcontrol, |
| 761 | struct snd_ctl_elem_value * ucontrol) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 762 | { |
| 763 | snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 764 | int change, addr = kcontrol->private_value; |
| 765 | int left, right; |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 766 | u32 anabar, xbarin; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 767 | int analog_io, rate; |
| 768 | struct saa7134_dev *dev; |
| 769 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 770 | dev = chip->dev; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 771 | |
| 772 | left = ucontrol->value.integer.value[0] & 1; |
| 773 | right = ucontrol->value.integer.value[1] & 1; |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 774 | spin_lock_irq(&chip->mixer_lock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 775 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 776 | change = chip->capture_source[addr][0] != left || |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 777 | chip->capture_source[addr][1] != right; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 778 | chip->capture_source[addr][0] = left; |
| 779 | chip->capture_source[addr][1] = right; |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 780 | dev->dmasound.input=addr; |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 781 | spin_unlock_irq(&chip->mixer_lock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 782 | |
| 783 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 784 | if (change) { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 785 | switch (dev->pci->device) { |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 786 | |
| 787 | case PCI_DEVICE_ID_PHILIPS_SAA7134: |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 788 | switch (addr) { |
| 789 | case MIXER_ADDR_TVTUNER: |
| 790 | saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0xc0); |
| 791 | saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00); |
| 792 | break; |
| 793 | case MIXER_ADDR_LINE1: |
| 794 | case MIXER_ADDR_LINE2: |
| 795 | analog_io = (MIXER_ADDR_LINE1 == addr) ? 0x00 : 0x08; |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 796 | rate = (32000 == dev->dmasound.rate) ? 0x01 : 0x03; |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 797 | saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, analog_io); |
| 798 | saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0x80); |
| 799 | saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, rate); |
| 800 | break; |
| 801 | } |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 802 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 803 | break; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 804 | case PCI_DEVICE_ID_PHILIPS_SAA7133: |
| 805 | case PCI_DEVICE_ID_PHILIPS_SAA7135: |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 806 | xbarin = 0x03; // adc |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 807 | anabar = 0; |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 808 | switch (addr) { |
| 809 | case MIXER_ADDR_TVTUNER: |
| 810 | xbarin = 0; // Demodulator |
| 811 | anabar = 2; // DACs |
| 812 | break; |
| 813 | case MIXER_ADDR_LINE1: |
| 814 | anabar = 0; // aux1, aux1 |
| 815 | break; |
| 816 | case MIXER_ADDR_LINE2: |
| 817 | anabar = 9; // aux2, aux2 |
| 818 | break; |
| 819 | } |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 820 | |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 821 | /* output xbar always main channel */ |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 822 | saa_dsp_writel(dev, SAA7133_DIGITAL_OUTPUT_SEL1, 0xbbbb10); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 823 | |
| 824 | if (left || right) { // We've got data, turn the input on |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 825 | saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1, xbarin); |
| 826 | saa_writel(SAA7133_ANALOG_IO_SELECT, anabar); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 827 | } else { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 828 | saa_dsp_writel(dev, SAA7133_DIGITAL_INPUT_XBAR1, 0); |
| 829 | saa_writel(SAA7133_ANALOG_IO_SELECT, 0); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 830 | } |
Ricardo Cerqueira | a866623 | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 831 | break; |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 832 | } |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 833 | } |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 834 | |
| 835 | return change; |
| 836 | } |
| 837 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 838 | static struct snd_kcontrol_new snd_saa7134_controls[] = { |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 839 | SAA713x_VOLUME("Video Volume", 0, MIXER_ADDR_TVTUNER), |
| 840 | SAA713x_CAPSRC("Video Capture Switch", 0, MIXER_ADDR_TVTUNER), |
| 841 | SAA713x_VOLUME("Line Volume", 1, MIXER_ADDR_LINE1), |
| 842 | SAA713x_CAPSRC("Line Capture Switch", 1, MIXER_ADDR_LINE1), |
| 843 | SAA713x_VOLUME("Line Volume", 2, MIXER_ADDR_LINE2), |
| 844 | SAA713x_CAPSRC("Line Capture Switch", 2, MIXER_ADDR_LINE2), |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 845 | }; |
| 846 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 847 | /* |
| 848 | * ALSA mixer setup |
| 849 | * |
| 850 | * Called when initializing the board. Sets up the name and hooks up |
| 851 | * the callbacks |
| 852 | * |
| 853 | */ |
| 854 | |
| 855 | static int snd_card_saa7134_new_mixer(snd_card_saa7134_t * chip) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 856 | { |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 857 | struct snd_card *card = chip->card; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 858 | unsigned int idx; |
| 859 | int err; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 860 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 861 | snd_assert(chip != NULL, return -EINVAL); |
| 862 | strcpy(card->mixername, "SAA7134 Mixer"); |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 863 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 864 | for (idx = 0; idx < ARRAY_SIZE(snd_saa7134_controls); idx++) { |
| 865 | if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_saa7134_controls[idx], chip))) < 0) |
| 866 | return err; |
| 867 | } |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 868 | return 0; |
| 869 | } |
| 870 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 871 | static void snd_saa7134_free(struct snd_card * card) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 872 | { |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 873 | snd_card_saa7134_t *chip = card->private_data; |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 874 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 875 | if (chip->dev->dmasound.priv_data == NULL) |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 876 | return; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 877 | |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 878 | if (chip->irq >= 0) { |
| 879 | synchronize_irq(chip->irq); |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 880 | free_irq(chip->irq, &chip->dev->dmasound); |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 881 | } |
| 882 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 883 | chip->dev->dmasound.priv_data = NULL; |
| 884 | |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 885 | } |
| 886 | |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 887 | /* |
| 888 | * ALSA initialization |
| 889 | * |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 890 | * Called by the init routine, once for each saa7134 device present, |
| 891 | * it creates the basic structures and registers the ALSA devices |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 892 | * |
| 893 | */ |
| 894 | |
Adrian Bunk | 943a490 | 2005-12-01 00:51:35 -0800 | [diff] [blame] | 895 | static int alsa_card_saa7134_create(struct saa7134_dev *dev, int devnum) |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 896 | { |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 897 | |
Takashi Iwai | f7cbb7f | 2006-01-13 18:48:06 +0100 | [diff] [blame] | 898 | struct snd_card *card; |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 899 | snd_card_saa7134_t *chip; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 900 | int err; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 901 | |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 902 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 903 | if (devnum >= SNDRV_CARDS) |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 904 | return -ENODEV; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 905 | if (!enable[devnum]) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 906 | return -ENODEV; |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 907 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 908 | card = snd_card_new(index[devnum], id[devnum], THIS_MODULE, sizeof(snd_card_saa7134_t)); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 909 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 910 | if (card == NULL) |
| 911 | return -ENOMEM; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 912 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 913 | strcpy(card->driver, "SAA7134"); |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 914 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 915 | /* Card "creation" */ |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 916 | |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 917 | card->private_free = snd_saa7134_free; |
| 918 | chip = (snd_card_saa7134_t *) card->private_data; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 919 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 920 | spin_lock_init(&chip->lock); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 921 | spin_lock_init(&chip->mixer_lock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 922 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 923 | chip->dev = dev; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 924 | |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 925 | chip->card = card; |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 926 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 927 | chip->pci = dev->pci; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 928 | chip->iobase = pci_resource_start(dev->pci, 0); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 929 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 930 | |
| 931 | err = request_irq(dev->pci->irq, saa7134_alsa_irq, |
| 932 | SA_SHIRQ | SA_INTERRUPT, dev->name, |
| 933 | (void*) &dev->dmasound); |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 934 | |
| 935 | if (err < 0) { |
| 936 | printk(KERN_ERR "%s: can't get IRQ %d for ALSA\n", |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 937 | dev->name, dev->pci->irq); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 938 | goto __nodev; |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 939 | } |
| 940 | |
Ricardo Cerqueira | d5ee43a | 2005-11-13 16:08:10 -0800 | [diff] [blame] | 941 | chip->irq = dev->pci->irq; |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 942 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 943 | mutex_init(&dev->dmasound.lock); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 944 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 945 | if ((err = snd_card_saa7134_new_mixer(chip)) < 0) |
| 946 | goto __nodev; |
| 947 | |
| 948 | if ((err = snd_card_saa7134_pcm(chip, 0)) < 0) |
| 949 | goto __nodev; |
Ricardo Cerqueira | b2c15ea | 2005-11-08 21:37:14 -0800 | [diff] [blame] | 950 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 951 | snd_card_set_dev(card, &chip->pci->dev); |
| 952 | |
| 953 | /* End of "creation" */ |
| 954 | |
| 955 | strcpy(card->shortname, "SAA7134"); |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 956 | sprintf(card->longname, "%s at 0x%lx irq %d", |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 957 | chip->dev->name, chip->iobase, chip->irq); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 958 | |
Ricardo Cerqueira | f5b974c | 2005-12-01 00:51:20 -0800 | [diff] [blame] | 959 | printk(KERN_INFO "%s/alsa: %s registered as card %d\n",dev->name,card->longname,index[devnum]); |
| 960 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 961 | if ((err = snd_card_register(card)) == 0) { |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 962 | snd_saa7134_cards[devnum] = card; |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 963 | return 0; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 964 | } |
| 965 | |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 966 | __nodev: |
| 967 | snd_card_free(card); |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 968 | return err; |
| 969 | } |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 970 | |
Ricardo Cerqueira | f5b974c | 2005-12-01 00:51:20 -0800 | [diff] [blame] | 971 | |
| 972 | static int alsa_device_init(struct saa7134_dev *dev) |
| 973 | { |
| 974 | dev->dmasound.priv_data = dev; |
| 975 | alsa_card_saa7134_create(dev,dev->nr); |
| 976 | return 1; |
| 977 | } |
| 978 | |
| 979 | static int alsa_device_exit(struct saa7134_dev *dev) |
| 980 | { |
| 981 | |
| 982 | snd_card_free(snd_saa7134_cards[dev->nr]); |
| 983 | snd_saa7134_cards[dev->nr] = NULL; |
| 984 | return 1; |
| 985 | } |
| 986 | |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 987 | /* |
| 988 | * Module initializer |
| 989 | * |
| 990 | * Loops through present saa7134 cards, and assigns an ALSA device |
| 991 | * to each one |
| 992 | * |
| 993 | */ |
| 994 | |
| 995 | static int saa7134_alsa_init(void) |
| 996 | { |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 997 | struct saa7134_dev *dev = NULL; |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 998 | struct list_head *list; |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 999 | |
Ricardo Cerqueira | 7bb9529 | 2005-12-20 18:26:26 -0200 | [diff] [blame] | 1000 | if (!dmasound_init && !dmasound_exit) { |
| 1001 | dmasound_init = alsa_device_init; |
| 1002 | dmasound_exit = alsa_device_exit; |
| 1003 | } else { |
| 1004 | printk(KERN_WARNING "saa7134 ALSA: can't load, DMA sound handler already assigned (probably to OSS)\n"); |
| 1005 | return -EBUSY; |
| 1006 | } |
| 1007 | |
Mauro Carvalho Chehab | afd1a0c | 2005-12-12 00:37:27 -0800 | [diff] [blame] | 1008 | printk(KERN_INFO "saa7134 ALSA driver for DMA sound loaded\n"); |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 1009 | |
| 1010 | list_for_each(list,&saa7134_devlist) { |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 1011 | dev = list_entry(list, struct saa7134_dev, devlist); |
| 1012 | if (dev->dmasound.priv_data == NULL) { |
Ricardo Cerqueira | f5b974c | 2005-12-01 00:51:20 -0800 | [diff] [blame] | 1013 | alsa_device_init(dev); |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 1014 | } else { |
| 1015 | printk(KERN_ERR "saa7134 ALSA: DMA sound is being handled by OSS. ignoring %s\n",dev->name); |
| 1016 | return -EBUSY; |
| 1017 | } |
Ricardo Cerqueira | c817e76 | 2005-11-13 16:07:47 -0800 | [diff] [blame] | 1018 | } |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 1019 | |
Ricardo Cerqueira | 4aabf63 | 2005-11-13 16:08:00 -0800 | [diff] [blame] | 1020 | if (dev == NULL) |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 1021 | printk(KERN_INFO "saa7134 ALSA: no saa7134 cards found\n"); |
| 1022 | |
| 1023 | return 0; |
Mauro Carvalho Chehab | 674434c | 2005-12-12 00:37:28 -0800 | [diff] [blame] | 1024 | |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 1025 | } |
| 1026 | |
| 1027 | /* |
| 1028 | * Module destructor |
| 1029 | */ |
| 1030 | |
Adrian Bunk | 943a490 | 2005-12-01 00:51:35 -0800 | [diff] [blame] | 1031 | static void saa7134_alsa_exit(void) |
Ricardo Cerqueira | bd15eba | 2005-11-08 21:37:11 -0800 | [diff] [blame] | 1032 | { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 1033 | int idx; |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 1034 | |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 1035 | for (idx = 0; idx < SNDRV_CARDS; idx++) { |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 1036 | snd_card_free(snd_saa7134_cards[idx]); |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 1037 | } |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 1038 | |
Ricardo Cerqueira | 7bb9529 | 2005-12-20 18:26:26 -0200 | [diff] [blame] | 1039 | dmasound_init = NULL; |
| 1040 | dmasound_exit = NULL; |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 1041 | printk(KERN_INFO "saa7134 ALSA driver for DMA sound unloaded\n"); |
Ricardo Cerqueira | b54134b | 2005-11-08 21:38:54 -0800 | [diff] [blame] | 1042 | |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 1043 | return; |
Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame] | 1044 | } |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 1045 | |
Linus Torvalds | c7ac6b4 | 2005-12-21 14:52:32 -0800 | [diff] [blame] | 1046 | /* We initialize this late, to make sure the sound system is up and running */ |
| 1047 | late_initcall(saa7134_alsa_init); |
Ricardo Cerqueira | 79dd0c6 | 2005-11-08 21:38:53 -0800 | [diff] [blame] | 1048 | module_exit(saa7134_alsa_exit); |
| 1049 | MODULE_LICENSE("GPL"); |
| 1050 | MODULE_AUTHOR("Ricardo Cerqueira"); |
Mauro Carvalho Chehab | 674434c | 2005-12-12 00:37:28 -0800 | [diff] [blame] | 1051 | |
| 1052 | |
| 1053 | |