Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 1 | /* |
| 2 | * |
Dmitri Belimov | e28f49b | 2010-02-22 06:32:15 -0300 | [diff] [blame] | 3 | * Support for audio capture for tm5600/6000/6010 |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 4 | * (c) 2007-2008 Mauro Carvalho Chehab <mchehab@redhat.com> |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 5 | * |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 6 | * Based on cx88-alsa.c |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 11 | */ |
| 12 | |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/device.h> |
| 16 | #include <linux/interrupt.h> |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 17 | #include <linux/usb.h> |
Tejun Heo | 4ef0988 | 2010-03-30 02:52:33 +0900 | [diff] [blame] | 18 | #include <linux/slab.h> |
Mauro Carvalho Chehab | 54b7860 | 2010-06-03 16:24:19 -0300 | [diff] [blame] | 19 | #include <linux/vmalloc.h> |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 20 | |
Curtis McEnroe | d684aee | 2011-06-02 20:33:34 -0400 | [diff] [blame] | 21 | #include <linux/delay.h> |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 22 | #include <sound/core.h> |
| 23 | #include <sound/pcm.h> |
| 24 | #include <sound/pcm_params.h> |
| 25 | #include <sound/control.h> |
| 26 | #include <sound/initval.h> |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 27 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 28 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 29 | #include "tm6000.h" |
| 30 | #include "tm6000-regs.h" |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 31 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 32 | #undef dprintk |
| 33 | |
| 34 | #define dprintk(level, fmt, arg...) do { \ |
| 35 | if (debug >= level) \ |
| 36 | printk(KERN_INFO "%s/1: " fmt, chip->core->name , ## arg); \ |
| 37 | } while (0) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 38 | |
| 39 | /**************************************************************************** |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 40 | Module global static vars |
| 41 | ****************************************************************************/ |
| 42 | |
| 43 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
Mauro Carvalho Chehab | 0e57ff8 | 2010-06-03 13:45:41 -0300 | [diff] [blame] | 44 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 45 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; |
| 46 | |
| 47 | module_param_array(enable, bool, NULL, 0444); |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 48 | MODULE_PARM_DESC(enable, "Enable tm6000x soundcard. default enabled."); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 49 | |
| 50 | module_param_array(index, int, NULL, 0444); |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 51 | MODULE_PARM_DESC(index, "Index value for tm6000x capture interface(s)."); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 52 | |
| 53 | |
| 54 | /**************************************************************************** |
| 55 | Module macros |
| 56 | ****************************************************************************/ |
| 57 | |
Dmitri Belimov | e28f49b | 2010-02-22 06:32:15 -0300 | [diff] [blame] | 58 | MODULE_DESCRIPTION("ALSA driver module for tm5600/tm6000/tm6010 based TV cards"); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 59 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); |
| 60 | MODULE_LICENSE("GPL"); |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 61 | MODULE_SUPPORTED_DEVICE("{{Trident,tm5600}," |
Dmitri Belimov | e28f49b | 2010-02-22 06:32:15 -0300 | [diff] [blame] | 62 | "{{Trident,tm6000}," |
| 63 | "{{Trident,tm6010}"); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 64 | static unsigned int debug; |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 65 | module_param(debug, int, 0644); |
| 66 | MODULE_PARM_DESC(debug, "enable debug messages"); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 67 | |
| 68 | /**************************************************************************** |
| 69 | Module specific funtions |
| 70 | ****************************************************************************/ |
| 71 | |
| 72 | /* |
| 73 | * BOARD Specific: Sets audio DMA |
| 74 | */ |
| 75 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 76 | static int _tm6000_start_audio_dma(struct snd_tm6000_card *chip) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 77 | { |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 78 | struct tm6000_core *core = chip->core; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 79 | |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 80 | dprintk(1, "Starting audio DMA\n"); |
| 81 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 82 | /* Enables audio */ |
Dmitri Belimov | 8aff8ba | 2011-02-17 22:11:05 -0300 | [diff] [blame] | 83 | tm6000_set_reg_mask(core, TM6010_REQ07_RCC_ACTIVE_VIDEO_IF, 0x40, 0x40); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 84 | |
Mauro Carvalho Chehab | a59bff3 | 2010-06-07 11:57:01 -0300 | [diff] [blame] | 85 | tm6000_set_audio_bitrate(core, 48000); |
| 86 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | /* |
| 91 | * BOARD Specific: Resets audio DMA |
| 92 | */ |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 93 | static int _tm6000_stop_audio_dma(struct snd_tm6000_card *chip) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 94 | { |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 95 | struct tm6000_core *core = chip->core; |
Dmitri Belimov | 8aff8ba | 2011-02-17 22:11:05 -0300 | [diff] [blame] | 96 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 97 | dprintk(1, "Stopping audio DMA\n"); |
| 98 | |
Dmitri Belimov | 8aff8ba | 2011-02-17 22:11:05 -0300 | [diff] [blame] | 99 | /* Disables audio */ |
| 100 | tm6000_set_reg_mask(core, TM6010_REQ07_RCC_ACTIVE_VIDEO_IF, 0x00, 0x40); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 101 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 102 | return 0; |
| 103 | } |
| 104 | |
Mauro Carvalho Chehab | 54b7860 | 2010-06-03 16:24:19 -0300 | [diff] [blame] | 105 | static void dsp_buffer_free(struct snd_pcm_substream *substream) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 106 | { |
Mauro Carvalho Chehab | 54b7860 | 2010-06-03 16:24:19 -0300 | [diff] [blame] | 107 | struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 108 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 109 | dprintk(2, "Freeing buffer\n"); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 110 | |
Mauro Carvalho Chehab | 54b7860 | 2010-06-03 16:24:19 -0300 | [diff] [blame] | 111 | vfree(substream->runtime->dma_area); |
| 112 | substream->runtime->dma_area = NULL; |
| 113 | substream->runtime->dma_bytes = 0; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 114 | } |
| 115 | |
Mauro Carvalho Chehab | 54b7860 | 2010-06-03 16:24:19 -0300 | [diff] [blame] | 116 | static int dsp_buffer_alloc(struct snd_pcm_substream *substream, int size) |
| 117 | { |
| 118 | struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); |
| 119 | |
| 120 | dprintk(2, "Allocating buffer\n"); |
| 121 | |
| 122 | if (substream->runtime->dma_area) { |
| 123 | if (substream->runtime->dma_bytes > size) |
| 124 | return 0; |
Adam M. Dutko | 37f9619 | 2011-06-23 11:57:45 -0300 | [diff] [blame] | 125 | |
Mauro Carvalho Chehab | 54b7860 | 2010-06-03 16:24:19 -0300 | [diff] [blame] | 126 | dsp_buffer_free(substream); |
| 127 | } |
| 128 | |
| 129 | substream->runtime->dma_area = vmalloc(size); |
| 130 | if (!substream->runtime->dma_area) |
| 131 | return -ENOMEM; |
| 132 | |
| 133 | substream->runtime->dma_bytes = size; |
| 134 | |
| 135 | return 0; |
| 136 | } |
| 137 | |
| 138 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 139 | /**************************************************************************** |
| 140 | ALSA PCM Interface |
| 141 | ****************************************************************************/ |
| 142 | |
| 143 | /* |
| 144 | * Digital hardware definition |
| 145 | */ |
| 146 | #define DEFAULT_FIFO_SIZE 4096 |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 147 | |
| 148 | static struct snd_pcm_hardware snd_tm6000_digital_hw = { |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 149 | .info = SNDRV_PCM_INFO_MMAP | |
| 150 | SNDRV_PCM_INFO_INTERLEAVED | |
| 151 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| 152 | SNDRV_PCM_INFO_MMAP_VALID, |
| 153 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| 154 | |
Adam M. Dutko | 37f9619 | 2011-06-23 11:57:45 -0300 | [diff] [blame] | 155 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
| 156 | .rate_min = 48000, |
| 157 | .rate_max = 48000, |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 158 | .channels_min = 2, |
| 159 | .channels_max = 2, |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 160 | .period_bytes_min = 64, |
| 161 | .period_bytes_max = 12544, |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 162 | .periods_min = 1, |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 163 | .periods_max = 98, |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 164 | .buffer_bytes_max = 62720 * 8, |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 165 | }; |
| 166 | |
| 167 | /* |
| 168 | * audio pcm capture open callback |
| 169 | */ |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 170 | static int snd_tm6000_pcm_open(struct snd_pcm_substream *substream) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 171 | { |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 172 | struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 173 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 174 | int err; |
| 175 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 176 | err = snd_pcm_hw_constraint_pow2(runtime, 0, |
| 177 | SNDRV_PCM_HW_PARAM_PERIODS); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 178 | if (err < 0) |
| 179 | goto _error; |
| 180 | |
| 181 | chip->substream = substream; |
| 182 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 183 | runtime->hw = snd_tm6000_digital_hw; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 184 | |
| 185 | return 0; |
| 186 | _error: |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 187 | dprintk(1, "Error opening PCM!\n"); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 188 | return err; |
| 189 | } |
| 190 | |
| 191 | /* |
| 192 | * audio close callback |
| 193 | */ |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 194 | static int snd_tm6000_close(struct snd_pcm_substream *substream) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 195 | { |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 196 | struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); |
| 197 | struct tm6000_core *core = chip->core; |
| 198 | |
| 199 | if (atomic_read(&core->stream_started) > 0) { |
| 200 | atomic_set(&core->stream_started, 0); |
| 201 | schedule_work(&core->wq_trigger); |
| 202 | } |
| 203 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 204 | return 0; |
| 205 | } |
| 206 | |
Mauro Carvalho Chehab | b17b869 | 2010-06-03 17:16:28 -0300 | [diff] [blame] | 207 | static int tm6000_fillbuf(struct tm6000_core *core, char *buf, int size) |
| 208 | { |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 209 | struct snd_tm6000_card *chip = core->adev; |
| 210 | struct snd_pcm_substream *substream = chip->substream; |
| 211 | struct snd_pcm_runtime *runtime; |
| 212 | int period_elapsed = 0; |
| 213 | unsigned int stride, buf_pos; |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 214 | int length; |
Mauro Carvalho Chehab | b17b869 | 2010-06-03 17:16:28 -0300 | [diff] [blame] | 215 | |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 216 | if (atomic_read(&core->stream_started) == 0) |
| 217 | return 0; |
| 218 | |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 219 | if (!size || !substream) { |
| 220 | dprintk(1, "substream was NULL\n"); |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 221 | return -EINVAL; |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 222 | } |
Mauro Carvalho Chehab | b17b869 | 2010-06-03 17:16:28 -0300 | [diff] [blame] | 223 | |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 224 | runtime = substream->runtime; |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 225 | if (!runtime || !runtime->dma_area) { |
| 226 | dprintk(1, "runtime was NULL\n"); |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 227 | return -EINVAL; |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 228 | } |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 229 | |
| 230 | buf_pos = chip->buf_pos; |
| 231 | stride = runtime->frame_bits >> 3; |
| 232 | |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 233 | if (stride == 0) { |
| 234 | dprintk(1, "stride is zero\n"); |
| 235 | return -EINVAL; |
| 236 | } |
| 237 | |
| 238 | length = size / stride; |
| 239 | if (length == 0) { |
| 240 | dprintk(1, "%s: length was zero\n", __func__); |
| 241 | return -EINVAL; |
| 242 | } |
| 243 | |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 244 | dprintk(1, "Copying %d bytes at %p[%d] - buf size=%d x %d\n", size, |
| 245 | runtime->dma_area, buf_pos, |
| 246 | (unsigned int)runtime->buffer_size, stride); |
| 247 | |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 248 | if (buf_pos + length >= runtime->buffer_size) { |
| 249 | unsigned int cnt = runtime->buffer_size - buf_pos; |
| 250 | memcpy(runtime->dma_area + buf_pos * stride, buf, cnt * stride); |
| 251 | memcpy(runtime->dma_area, buf + cnt * stride, |
| 252 | length * stride - cnt * stride); |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 253 | } else |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 254 | memcpy(runtime->dma_area + buf_pos * stride, buf, |
| 255 | length * stride); |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 256 | |
Curtis McEnroe | d684aee | 2011-06-02 20:33:34 -0400 | [diff] [blame] | 257 | snd_pcm_stream_lock(substream); |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 258 | |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 259 | chip->buf_pos += length; |
| 260 | if (chip->buf_pos >= runtime->buffer_size) |
| 261 | chip->buf_pos -= runtime->buffer_size; |
| 262 | |
| 263 | chip->period_pos += length; |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 264 | if (chip->period_pos >= runtime->period_size) { |
| 265 | chip->period_pos -= runtime->period_size; |
| 266 | period_elapsed = 1; |
| 267 | } |
| 268 | |
Curtis McEnroe | d684aee | 2011-06-02 20:33:34 -0400 | [diff] [blame] | 269 | snd_pcm_stream_unlock(substream); |
Dmitri Belimov | 73f4d26 | 2010-09-20 17:07:15 -0300 | [diff] [blame] | 270 | |
Mauro Carvalho Chehab | e8cbf03 | 2010-06-05 19:21:34 -0300 | [diff] [blame] | 271 | if (period_elapsed) |
| 272 | snd_pcm_period_elapsed(substream); |
Mauro Carvalho Chehab | b17b869 | 2010-06-03 17:16:28 -0300 | [diff] [blame] | 273 | |
| 274 | return 0; |
| 275 | } |
| 276 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 277 | /* |
| 278 | * hw_params callback |
| 279 | */ |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 280 | static int snd_tm6000_hw_params(struct snd_pcm_substream *substream, |
| 281 | struct snd_pcm_hw_params *hw_params) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 282 | { |
Mauro Carvalho Chehab | 54b7860 | 2010-06-03 16:24:19 -0300 | [diff] [blame] | 283 | int size, rc; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 284 | |
Mauro Carvalho Chehab | 54b7860 | 2010-06-03 16:24:19 -0300 | [diff] [blame] | 285 | size = params_period_bytes(hw_params) * params_periods(hw_params); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 286 | |
Mauro Carvalho Chehab | 54b7860 | 2010-06-03 16:24:19 -0300 | [diff] [blame] | 287 | rc = dsp_buffer_alloc(substream, size); |
| 288 | if (rc < 0) |
| 289 | return rc; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 290 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 291 | return 0; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | /* |
| 295 | * hw free callback |
| 296 | */ |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 297 | static int snd_tm6000_hw_free(struct snd_pcm_substream *substream) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 298 | { |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 299 | struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 300 | struct tm6000_core *core = chip->core; |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 301 | |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 302 | if (atomic_read(&core->stream_started) > 0) { |
| 303 | atomic_set(&core->stream_started, 0); |
| 304 | schedule_work(&core->wq_trigger); |
| 305 | } |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 306 | |
| 307 | return 0; |
| 308 | } |
| 309 | |
| 310 | /* |
| 311 | * prepare callback |
| 312 | */ |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 313 | static int snd_tm6000_prepare(struct snd_pcm_substream *substream) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 314 | { |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 315 | struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); |
| 316 | |
| 317 | chip->buf_pos = 0; |
| 318 | chip->period_pos = 0; |
| 319 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 320 | return 0; |
| 321 | } |
| 322 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 323 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 324 | /* |
| 325 | * trigger callback |
| 326 | */ |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 327 | static void audio_trigger(struct work_struct *work) |
| 328 | { |
| 329 | struct tm6000_core *core = container_of(work, struct tm6000_core, |
| 330 | wq_trigger); |
| 331 | struct snd_tm6000_card *chip = core->adev; |
| 332 | |
| 333 | if (atomic_read(&core->stream_started)) { |
| 334 | dprintk(1, "starting capture"); |
| 335 | _tm6000_start_audio_dma(chip); |
| 336 | } else { |
| 337 | dprintk(1, "stopping capture"); |
| 338 | _tm6000_stop_audio_dma(chip); |
| 339 | } |
| 340 | } |
| 341 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 342 | static int snd_tm6000_card_trigger(struct snd_pcm_substream *substream, int cmd) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 343 | { |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 344 | struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 345 | struct tm6000_core *core = chip->core; |
| 346 | int err = 0; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 347 | |
| 348 | switch (cmd) { |
| 349 | case SNDRV_PCM_TRIGGER_START: |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 350 | atomic_set(&core->stream_started, 1); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 351 | break; |
| 352 | case SNDRV_PCM_TRIGGER_STOP: |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 353 | atomic_set(&core->stream_started, 0); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 354 | break; |
| 355 | default: |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 356 | err = -EINVAL; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 357 | break; |
| 358 | } |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 359 | schedule_work(&core->wq_trigger); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 360 | |
| 361 | return err; |
| 362 | } |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 363 | /* |
| 364 | * pointer callback |
| 365 | */ |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 366 | static snd_pcm_uframes_t snd_tm6000_pointer(struct snd_pcm_substream *substream) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 367 | { |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 368 | struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 369 | |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 370 | return chip->buf_pos; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 371 | } |
| 372 | |
| 373 | /* |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 374 | * operators |
| 375 | */ |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 376 | static struct snd_pcm_ops snd_tm6000_pcm_ops = { |
| 377 | .open = snd_tm6000_pcm_open, |
| 378 | .close = snd_tm6000_close, |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 379 | .ioctl = snd_pcm_lib_ioctl, |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 380 | .hw_params = snd_tm6000_hw_params, |
| 381 | .hw_free = snd_tm6000_hw_free, |
| 382 | .prepare = snd_tm6000_prepare, |
| 383 | .trigger = snd_tm6000_card_trigger, |
| 384 | .pointer = snd_tm6000_pointer, |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 385 | }; |
| 386 | |
| 387 | /* |
| 388 | * create a PCM device |
| 389 | */ |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 390 | |
Mauro Carvalho Chehab | 7ca30c5 | 2008-01-11 13:19:09 -0300 | [diff] [blame] | 391 | /* FIXME: Control interface - How to control volume/mute? */ |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 392 | |
| 393 | /**************************************************************************** |
| 394 | Basic Flow for Sound Devices |
| 395 | ****************************************************************************/ |
| 396 | |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 397 | /* |
| 398 | * Alsa Constructor - Component probe |
| 399 | */ |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 400 | int tm6000_audio_init(struct tm6000_core *dev) |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 401 | { |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 402 | struct snd_card *card; |
| 403 | struct snd_tm6000_card *chip; |
| 404 | int rc; |
| 405 | static int devnr; |
| 406 | char component[14]; |
| 407 | struct snd_pcm *pcm; |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 408 | |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 409 | if (!dev) |
| 410 | return 0; |
| 411 | |
| 412 | if (devnr >= SNDRV_CARDS) |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 413 | return -ENODEV; |
| 414 | |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 415 | if (!enable[devnr]) |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 416 | return -ENOENT; |
| 417 | |
Mauro Carvalho Chehab | 0e57ff8 | 2010-06-03 13:45:41 -0300 | [diff] [blame] | 418 | rc = snd_card_create(index[devnr], "tm6000", THIS_MODULE, 0, &card); |
Mauro Carvalho Chehab | 427f7fa | 2009-09-14 16:37:13 -0300 | [diff] [blame] | 419 | if (rc < 0) { |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 420 | snd_printk(KERN_ERR "cannot create card instance %d\n", devnr); |
Mauro Carvalho Chehab | 427f7fa | 2009-09-14 16:37:13 -0300 | [diff] [blame] | 421 | return rc; |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 422 | } |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 423 | strcpy(card->driver, "tm6000-alsa"); |
| 424 | strcpy(card->shortname, "TM5600/60x0"); |
| 425 | sprintf(card->longname, "TM5600/60x0 Audio at bus %d device %d", |
| 426 | dev->udev->bus->busnum, dev->udev->devnum); |
| 427 | |
| 428 | sprintf(component, "USB%04x:%04x", |
| 429 | le16_to_cpu(dev->udev->descriptor.idVendor), |
| 430 | le16_to_cpu(dev->udev->descriptor.idProduct)); |
| 431 | snd_component_add(card, component); |
| 432 | snd_card_set_dev(card, &dev->udev->dev); |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 433 | |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 434 | chip = kzalloc(sizeof(struct snd_tm6000_card), GFP_KERNEL); |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 435 | if (!chip) { |
| 436 | rc = -ENOMEM; |
| 437 | goto error; |
| 438 | } |
| 439 | |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 440 | chip->core = dev; |
| 441 | chip->card = card; |
| 442 | dev->adev = chip; |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 443 | spin_lock_init(&chip->reg_lock); |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 444 | |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 445 | rc = snd_pcm_new(card, "TM6000 Audio", 0, 0, 1, &pcm); |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 446 | if (rc < 0) |
Kulikov Vasiliy | cd6541c | 2010-08-11 12:01:19 +0400 | [diff] [blame] | 447 | goto error_chip; |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 448 | |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 449 | pcm->info_flags = 0; |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 450 | pcm->private_data = chip; |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 451 | strcpy(pcm->name, "Trident TM5600/60x0"); |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 452 | |
Mauro Carvalho Chehab | 3f23a81 | 2010-06-05 15:10:36 -0300 | [diff] [blame] | 453 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_tm6000_pcm_ops); |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 454 | |
Mauro Carvalho Chehab | 06f08e3 | 2010-10-09 21:15:33 -0300 | [diff] [blame] | 455 | INIT_WORK(&dev->wq_trigger, audio_trigger); |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 456 | rc = snd_card_register(card); |
| 457 | if (rc < 0) |
Kulikov Vasiliy | cd6541c | 2010-08-11 12:01:19 +0400 | [diff] [blame] | 458 | goto error_chip; |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 459 | |
Curtis McEnroe | d684aee | 2011-06-02 20:33:34 -0400 | [diff] [blame] | 460 | dprintk(1, "Registered audio driver for %s\n", card->longname); |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 461 | |
| 462 | return 0; |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 463 | |
Kulikov Vasiliy | cd6541c | 2010-08-11 12:01:19 +0400 | [diff] [blame] | 464 | error_chip: |
| 465 | kfree(chip); |
| 466 | dev->adev = NULL; |
Mauro Carvalho Chehab | 6ad6e88 | 2008-01-11 13:51:45 -0300 | [diff] [blame] | 467 | error: |
| 468 | snd_card_free(card); |
| 469 | return rc; |
Mauro Carvalho Chehab | d72d506 | 2008-01-11 10:28:50 -0300 | [diff] [blame] | 470 | } |
| 471 | |
Stefan Ringel | 0439db75 | 2010-05-10 13:22:51 -0300 | [diff] [blame] | 472 | static int tm6000_audio_fini(struct tm6000_core *dev) |
| 473 | { |
Stefan Ringel | d77057f | 2010-05-30 09:19:02 -0300 | [diff] [blame] | 474 | struct snd_tm6000_card *chip = dev->adev; |
| 475 | |
| 476 | if (!dev) |
| 477 | return 0; |
| 478 | |
| 479 | if (!chip) |
| 480 | return 0; |
| 481 | |
| 482 | if (!chip->card) |
| 483 | return 0; |
| 484 | |
| 485 | snd_card_free(chip->card); |
| 486 | chip->card = NULL; |
| 487 | kfree(chip); |
| 488 | dev->adev = NULL; |
| 489 | |
Stefan Ringel | 0439db75 | 2010-05-10 13:22:51 -0300 | [diff] [blame] | 490 | return 0; |
| 491 | } |
| 492 | |
| 493 | struct tm6000_ops audio_ops = { |
Mauro Carvalho Chehab | 39e1256 | 2010-06-03 16:31:20 -0300 | [diff] [blame] | 494 | .type = TM6000_AUDIO, |
Stefan Ringel | 0439db75 | 2010-05-10 13:22:51 -0300 | [diff] [blame] | 495 | .name = "TM6000 Audio Extension", |
| 496 | .init = tm6000_audio_init, |
| 497 | .fini = tm6000_audio_fini, |
Mauro Carvalho Chehab | b17b869 | 2010-06-03 17:16:28 -0300 | [diff] [blame] | 498 | .fillbuf = tm6000_fillbuf, |
Stefan Ringel | 0439db75 | 2010-05-10 13:22:51 -0300 | [diff] [blame] | 499 | }; |
| 500 | |
| 501 | static int __init tm6000_alsa_register(void) |
| 502 | { |
| 503 | return tm6000_register_extension(&audio_ops); |
| 504 | } |
| 505 | |
| 506 | static void __exit tm6000_alsa_unregister(void) |
| 507 | { |
| 508 | tm6000_unregister_extension(&audio_ops); |
| 509 | } |
| 510 | |
| 511 | module_init(tm6000_alsa_register); |
| 512 | module_exit(tm6000_alsa_unregister); |