Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 1 | /* |
| 2 | * bf5xx-ac97.c -- AC97 support for the ADI blackfin chip. |
| 3 | * |
| 4 | * Author: Roy Huang |
| 5 | * Created: 11th. June 2007 |
| 6 | * Copyright: Analog Device Inc. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/platform_device.h> |
| 16 | #include <linux/interrupt.h> |
| 17 | #include <linux/wait.h> |
| 18 | #include <linux/delay.h> |
| 19 | |
| 20 | #include <sound/core.h> |
| 21 | #include <sound/pcm.h> |
| 22 | #include <sound/ac97_codec.h> |
| 23 | #include <sound/initval.h> |
| 24 | #include <sound/soc.h> |
| 25 | |
| 26 | #include <asm/irq.h> |
| 27 | #include <asm/portmux.h> |
| 28 | #include <linux/mutex.h> |
| 29 | #include <linux/gpio.h> |
| 30 | |
| 31 | #include "bf5xx-sport.h" |
| 32 | #include "bf5xx-ac97.h" |
| 33 | |
| 34 | #if defined(CONFIG_BF54x) |
| 35 | #define PIN_REQ_SPORT_0 {P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, \ |
| 36 | P_SPORT0_RFS, P_SPORT0_DRPRI, P_SPORT0_RSCLK, 0} |
| 37 | |
| 38 | #define PIN_REQ_SPORT_1 {P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, \ |
| 39 | P_SPORT1_RFS, P_SPORT1_DRPRI, P_SPORT1_RSCLK, 0} |
| 40 | |
| 41 | #define PIN_REQ_SPORT_2 {P_SPORT2_TFS, P_SPORT2_DTPRI, P_SPORT2_TSCLK, \ |
| 42 | P_SPORT2_RFS, P_SPORT2_DRPRI, P_SPORT2_RSCLK, 0} |
| 43 | |
| 44 | #define PIN_REQ_SPORT_3 {P_SPORT3_TFS, P_SPORT3_DTPRI, P_SPORT3_TSCLK, \ |
| 45 | P_SPORT3_RFS, P_SPORT3_DRPRI, P_SPORT3_RSCLK, 0} |
| 46 | #else |
| 47 | #define PIN_REQ_SPORT_0 {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS, \ |
| 48 | P_SPORT0_DRPRI, P_SPORT0_RSCLK, 0} |
| 49 | |
| 50 | #define PIN_REQ_SPORT_1 {P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS, \ |
| 51 | P_SPORT1_DRPRI, P_SPORT1_RSCLK, 0} |
| 52 | #endif |
| 53 | |
| 54 | static int *cmd_count; |
| 55 | static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM; |
| 56 | |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 57 | static u16 sport_req[][7] = { |
| 58 | PIN_REQ_SPORT_0, |
| 59 | #ifdef PIN_REQ_SPORT_1 |
| 60 | PIN_REQ_SPORT_1, |
| 61 | #endif |
| 62 | #ifdef PIN_REQ_SPORT_2 |
| 63 | PIN_REQ_SPORT_2, |
| 64 | #endif |
| 65 | #ifdef PIN_REQ_SPORT_3 |
| 66 | PIN_REQ_SPORT_3, |
| 67 | #endif |
| 68 | }; |
| 69 | |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 70 | static struct sport_param sport_params[4] = { |
| 71 | { |
| 72 | .dma_rx_chan = CH_SPORT0_RX, |
| 73 | .dma_tx_chan = CH_SPORT0_TX, |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 74 | .err_irq = IRQ_SPORT0_ERROR, |
| 75 | .regs = (struct sport_register *)SPORT0_TCR1, |
| 76 | }, |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 77 | #ifdef PIN_REQ_SPORT_1 |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 78 | { |
| 79 | .dma_rx_chan = CH_SPORT1_RX, |
| 80 | .dma_tx_chan = CH_SPORT1_TX, |
| 81 | .err_irq = IRQ_SPORT1_ERROR, |
| 82 | .regs = (struct sport_register *)SPORT1_TCR1, |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 83 | }, |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 84 | #endif |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 85 | #ifdef PIN_REQ_SPORT_2 |
| 86 | { |
| 87 | .dma_rx_chan = CH_SPORT2_RX, |
| 88 | .dma_tx_chan = CH_SPORT2_TX, |
| 89 | .err_irq = IRQ_SPORT2_ERROR, |
| 90 | .regs = (struct sport_register *)SPORT2_TCR1, |
| 91 | }, |
| 92 | #endif |
| 93 | #ifdef PIN_REQ_SPORT_3 |
| 94 | { |
| 95 | .dma_rx_chan = CH_SPORT3_RX, |
| 96 | .dma_tx_chan = CH_SPORT3_TX, |
| 97 | .err_irq = IRQ_SPORT3_ERROR, |
| 98 | .regs = (struct sport_register *)SPORT3_TCR1, |
| 99 | } |
| 100 | #endif |
| 101 | }; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 102 | |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 103 | void bf5xx_pcm_to_ac97(struct ac97_frame *dst, const __u16 *src, |
| 104 | size_t count, unsigned int chan_mask) |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 105 | { |
| 106 | while (count--) { |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 107 | dst->ac97_tag = TAG_VALID; |
| 108 | if (chan_mask & SP_FL) { |
| 109 | dst->ac97_pcm_r = *src++; |
| 110 | dst->ac97_tag |= TAG_PCM_RIGHT; |
| 111 | } |
| 112 | if (chan_mask & SP_FR) { |
| 113 | dst->ac97_pcm_l = *src++; |
| 114 | dst->ac97_tag |= TAG_PCM_LEFT; |
| 115 | |
| 116 | } |
| 117 | #if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) |
| 118 | if (chan_mask & SP_SR) { |
| 119 | dst->ac97_sl = *src++; |
| 120 | dst->ac97_tag |= TAG_PCM_SL; |
| 121 | } |
| 122 | if (chan_mask & SP_SL) { |
| 123 | dst->ac97_sr = *src++; |
| 124 | dst->ac97_tag |= TAG_PCM_SR; |
| 125 | } |
| 126 | if (chan_mask & SP_LFE) { |
| 127 | dst->ac97_lfe = *src++; |
| 128 | dst->ac97_tag |= TAG_PCM_LFE; |
| 129 | } |
| 130 | if (chan_mask & SP_FC) { |
| 131 | dst->ac97_center = *src++; |
| 132 | dst->ac97_tag |= TAG_PCM_CENTER; |
| 133 | } |
| 134 | #endif |
| 135 | dst++; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 136 | } |
| 137 | } |
| 138 | EXPORT_SYMBOL(bf5xx_pcm_to_ac97); |
| 139 | |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 140 | void bf5xx_ac97_to_pcm(const struct ac97_frame *src, __u16 *dst, |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 141 | size_t count) |
| 142 | { |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 143 | while (count--) { |
| 144 | *(dst++) = src->ac97_pcm_l; |
| 145 | *(dst++) = src->ac97_pcm_r; |
| 146 | src++; |
| 147 | } |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 148 | } |
| 149 | EXPORT_SYMBOL(bf5xx_ac97_to_pcm); |
| 150 | |
| 151 | static unsigned int sport_tx_curr_frag(struct sport_device *sport) |
| 152 | { |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 153 | return sport->tx_curr_frag = sport_curr_offset_tx(sport) / |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 154 | sport->tx_fragsize; |
| 155 | } |
| 156 | |
| 157 | static void enqueue_cmd(struct snd_ac97 *ac97, __u16 addr, __u16 data) |
| 158 | { |
| 159 | struct sport_device *sport = sport_handle; |
| 160 | int nextfrag = sport_tx_curr_frag(sport); |
| 161 | struct ac97_frame *nextwrite; |
| 162 | |
| 163 | sport_incfrag(sport, &nextfrag, 1); |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 164 | |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 165 | nextwrite = (struct ac97_frame *)(sport->tx_buf + |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 166 | nextfrag * sport->tx_fragsize); |
| 167 | pr_debug("sport->tx_buf:%p, nextfrag:0x%x nextwrite:%p, cmd_count:%d\n", |
| 168 | sport->tx_buf, nextfrag, nextwrite, cmd_count[nextfrag]); |
| 169 | nextwrite[cmd_count[nextfrag]].ac97_tag |= TAG_CMD; |
| 170 | nextwrite[cmd_count[nextfrag]].ac97_addr = addr; |
| 171 | nextwrite[cmd_count[nextfrag]].ac97_data = data; |
| 172 | ++cmd_count[nextfrag]; |
| 173 | pr_debug("ac97_sport: Inserting %02x/%04x into fragment %d\n", |
| 174 | addr >> 8, data, nextfrag); |
| 175 | } |
| 176 | |
| 177 | static unsigned short bf5xx_ac97_read(struct snd_ac97 *ac97, |
| 178 | unsigned short reg) |
| 179 | { |
| 180 | struct ac97_frame out_frame[2], in_frame[2]; |
| 181 | |
| 182 | pr_debug("%s enter 0x%x\n", __func__, reg); |
| 183 | |
| 184 | /* When dma descriptor is enabled, the register should not be read */ |
| 185 | if (sport_handle->tx_run || sport_handle->rx_run) { |
| 186 | pr_err("Could you send a mail to cliff.cai@analog.com " |
| 187 | "to report this?\n"); |
| 188 | return -EFAULT; |
| 189 | } |
| 190 | |
| 191 | memset(&out_frame, 0, 2 * sizeof(struct ac97_frame)); |
| 192 | memset(&in_frame, 0, 2 * sizeof(struct ac97_frame)); |
| 193 | out_frame[0].ac97_tag = TAG_VALID | TAG_CMD; |
| 194 | out_frame[0].ac97_addr = ((reg << 8) | 0x8000); |
| 195 | sport_send_and_recv(sport_handle, (unsigned char *)&out_frame, |
| 196 | (unsigned char *)&in_frame, |
| 197 | 2 * sizeof(struct ac97_frame)); |
| 198 | return in_frame[1].ac97_data; |
| 199 | } |
| 200 | |
| 201 | void bf5xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, |
| 202 | unsigned short val) |
| 203 | { |
| 204 | pr_debug("%s enter 0x%x:0x%04x\n", __func__, reg, val); |
| 205 | |
| 206 | if (sport_handle->tx_run) { |
| 207 | enqueue_cmd(ac97, (reg << 8), val); /* write */ |
| 208 | enqueue_cmd(ac97, (reg << 8) | 0x8000, 0); /* read back */ |
| 209 | } else { |
| 210 | struct ac97_frame frame; |
| 211 | memset(&frame, 0, sizeof(struct ac97_frame)); |
| 212 | frame.ac97_tag = TAG_VALID | TAG_CMD; |
| 213 | frame.ac97_addr = (reg << 8); |
| 214 | frame.ac97_data = val; |
| 215 | sport_send_and_recv(sport_handle, (unsigned char *)&frame, \ |
| 216 | NULL, sizeof(struct ac97_frame)); |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | static void bf5xx_ac97_warm_reset(struct snd_ac97 *ac97) |
| 221 | { |
| 222 | #if defined(CONFIG_BF54x) || defined(CONFIG_BF561) || \ |
| 223 | (defined(BF537_FAMILY) && (CONFIG_SND_BF5XX_SPORT_NUM == 1)) |
| 224 | |
| 225 | #define CONCAT(a, b, c) a ## b ## c |
| 226 | #define BFIN_SPORT_RFS(x) CONCAT(P_SPORT, x, _RFS) |
| 227 | |
| 228 | u16 per = BFIN_SPORT_RFS(CONFIG_SND_BF5XX_SPORT_NUM); |
| 229 | u16 gpio = P_IDENT(BFIN_SPORT_RFS(CONFIG_SND_BF5XX_SPORT_NUM)); |
| 230 | |
| 231 | pr_debug("%s enter\n", __func__); |
| 232 | |
| 233 | peripheral_free(per); |
| 234 | gpio_request(gpio, "bf5xx-ac97"); |
| 235 | gpio_direction_output(gpio, 1); |
| 236 | udelay(2); |
| 237 | gpio_set_value(gpio, 0); |
| 238 | udelay(1); |
| 239 | gpio_free(gpio); |
| 240 | peripheral_request(per, "soc-audio"); |
| 241 | #else |
| 242 | pr_info("%s: Not implemented\n", __func__); |
| 243 | #endif |
| 244 | } |
| 245 | |
| 246 | static void bf5xx_ac97_cold_reset(struct snd_ac97 *ac97) |
| 247 | { |
| 248 | #ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET |
| 249 | pr_debug("%s enter\n", __func__); |
| 250 | |
| 251 | /* It is specified for bf548-ezkit */ |
| 252 | gpio_set_value(CONFIG_SND_BF5XX_RESET_GPIO_NUM, 0); |
| 253 | /* Keep reset pin low for 1 ms */ |
| 254 | mdelay(1); |
| 255 | gpio_set_value(CONFIG_SND_BF5XX_RESET_GPIO_NUM, 1); |
| 256 | /* Wait for bit clock recover */ |
| 257 | mdelay(1); |
| 258 | #else |
| 259 | pr_info("%s: Not implemented\n", __func__); |
| 260 | #endif |
| 261 | } |
| 262 | |
| 263 | struct snd_ac97_bus_ops soc_ac97_ops = { |
| 264 | .read = bf5xx_ac97_read, |
| 265 | .write = bf5xx_ac97_write, |
| 266 | .warm_reset = bf5xx_ac97_warm_reset, |
| 267 | .reset = bf5xx_ac97_cold_reset, |
| 268 | }; |
| 269 | EXPORT_SYMBOL_GPL(soc_ac97_ops); |
| 270 | |
| 271 | #ifdef CONFIG_PM |
| 272 | static int bf5xx_ac97_suspend(struct platform_device *pdev, |
| 273 | struct snd_soc_dai *dai) |
| 274 | { |
| 275 | struct sport_device *sport = |
| 276 | (struct sport_device *)dai->private_data; |
| 277 | |
| 278 | pr_debug("%s : sport %d\n", __func__, dai->id); |
| 279 | if (!dai->active) |
| 280 | return 0; |
| 281 | if (dai->capture.active) |
| 282 | sport_rx_stop(sport); |
| 283 | if (dai->playback.active) |
| 284 | sport_tx_stop(sport); |
| 285 | return 0; |
| 286 | } |
| 287 | |
| 288 | static int bf5xx_ac97_resume(struct platform_device *pdev, |
| 289 | struct snd_soc_dai *dai) |
| 290 | { |
| 291 | int ret; |
| 292 | struct sport_device *sport = |
| 293 | (struct sport_device *)dai->private_data; |
| 294 | |
| 295 | pr_debug("%s : sport %d\n", __func__, dai->id); |
| 296 | if (!dai->active) |
| 297 | return 0; |
| 298 | |
| 299 | ret = sport_set_multichannel(sport_handle, 16, 0x1F, 1); |
| 300 | if (ret) { |
| 301 | pr_err("SPORT is busy!\n"); |
| 302 | return -EBUSY; |
| 303 | } |
| 304 | |
| 305 | ret = sport_config_rx(sport_handle, IRFS, 0xF, 0, (16*16-1)); |
| 306 | if (ret) { |
| 307 | pr_err("SPORT is busy!\n"); |
| 308 | return -EBUSY; |
| 309 | } |
| 310 | |
| 311 | ret = sport_config_tx(sport_handle, ITFS, 0xF, 0, (16*16-1)); |
| 312 | if (ret) { |
| 313 | pr_err("SPORT is busy!\n"); |
| 314 | return -EBUSY; |
| 315 | } |
| 316 | |
| 317 | if (dai->capture.active) |
| 318 | sport_rx_start(sport); |
| 319 | if (dai->playback.active) |
| 320 | sport_tx_start(sport); |
| 321 | return 0; |
| 322 | } |
| 323 | |
| 324 | #else |
| 325 | #define bf5xx_ac97_suspend NULL |
| 326 | #define bf5xx_ac97_resume NULL |
| 327 | #endif |
| 328 | |
| 329 | static int bf5xx_ac97_probe(struct platform_device *pdev, |
| 330 | struct snd_soc_dai *dai) |
| 331 | { |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 332 | int ret = 0; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 333 | cmd_count = (int *)get_zeroed_page(GFP_KERNEL); |
| 334 | if (cmd_count == NULL) |
| 335 | return -ENOMEM; |
| 336 | |
| 337 | if (peripheral_request_list(&sport_req[sport_num][0], "soc-audio")) { |
| 338 | pr_err("Requesting Peripherals failed\n"); |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 339 | ret = -EFAULT; |
| 340 | goto peripheral_err; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | #ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET |
| 344 | /* Request PB3 as reset pin */ |
| 345 | if (gpio_request(CONFIG_SND_BF5XX_RESET_GPIO_NUM, "SND_AD198x RESET")) { |
| 346 | pr_err("Failed to request GPIO_%d for reset\n", |
| 347 | CONFIG_SND_BF5XX_RESET_GPIO_NUM); |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 348 | ret = -1; |
| 349 | goto gpio_err; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 350 | } |
| 351 | gpio_direction_output(CONFIG_SND_BF5XX_RESET_GPIO_NUM, 1); |
| 352 | #endif |
| 353 | sport_handle = sport_init(&sport_params[sport_num], 2, \ |
| 354 | sizeof(struct ac97_frame), NULL); |
| 355 | if (!sport_handle) { |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 356 | ret = -ENODEV; |
| 357 | goto sport_err; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 358 | } |
| 359 | /*SPORT works in TDM mode to simulate AC97 transfers*/ |
| 360 | ret = sport_set_multichannel(sport_handle, 16, 0x1F, 1); |
| 361 | if (ret) { |
| 362 | pr_err("SPORT is busy!\n"); |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 363 | ret = -EBUSY; |
| 364 | goto sport_config_err; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 365 | } |
| 366 | |
| 367 | ret = sport_config_rx(sport_handle, IRFS, 0xF, 0, (16*16-1)); |
| 368 | if (ret) { |
| 369 | pr_err("SPORT is busy!\n"); |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 370 | ret = -EBUSY; |
| 371 | goto sport_config_err; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 372 | } |
| 373 | |
| 374 | ret = sport_config_tx(sport_handle, ITFS, 0xF, 0, (16*16-1)); |
| 375 | if (ret) { |
| 376 | pr_err("SPORT is busy!\n"); |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 377 | ret = -EBUSY; |
| 378 | goto sport_config_err; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 379 | } |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 380 | |
Michael Hennerich | 0cade26 | 2008-11-18 16:18:19 +0800 | [diff] [blame] | 381 | return 0; |
| 382 | |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 383 | sport_config_err: |
| 384 | kfree(sport_handle); |
| 385 | sport_err: |
| 386 | #ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET |
| 387 | gpio_free(CONFIG_SND_BF5XX_RESET_GPIO_NUM); |
| 388 | #endif |
| 389 | gpio_err: |
| 390 | peripheral_free_list(&sport_req[sport_num][0]); |
| 391 | peripheral_err: |
| 392 | free_page((unsigned long)cmd_count); |
| 393 | cmd_count = NULL; |
| 394 | |
| 395 | return ret; |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 396 | } |
| 397 | |
| 398 | static void bf5xx_ac97_remove(struct platform_device *pdev, |
| 399 | struct snd_soc_dai *dai) |
| 400 | { |
| 401 | free_page((unsigned long)cmd_count); |
| 402 | cmd_count = NULL; |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 403 | peripheral_free_list(&sport_req[sport_num][0]); |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 404 | #ifdef CONFIG_SND_BF5XX_HAVE_COLD_RESET |
| 405 | gpio_free(CONFIG_SND_BF5XX_RESET_GPIO_NUM); |
| 406 | #endif |
| 407 | } |
| 408 | |
| 409 | struct snd_soc_dai bfin_ac97_dai = { |
| 410 | .name = "bf5xx-ac97", |
| 411 | .id = 0, |
Mark Brown | 3ba9e10a | 2008-11-24 18:01:05 +0000 | [diff] [blame] | 412 | .ac97_control = 1, |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 413 | .probe = bf5xx_ac97_probe, |
| 414 | .remove = bf5xx_ac97_remove, |
| 415 | .suspend = bf5xx_ac97_suspend, |
| 416 | .resume = bf5xx_ac97_resume, |
| 417 | .playback = { |
| 418 | .stream_name = "AC97 Playback", |
| 419 | .channels_min = 2, |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 420 | #if defined(CONFIG_SND_BF5XX_MULTICHAN_SUPPORT) |
| 421 | .channels_max = 6, |
| 422 | #else |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 423 | .channels_max = 2, |
Cliff Cai | 67f854b | 2008-11-18 16:18:17 +0800 | [diff] [blame] | 424 | #endif |
Cliff Cai | f202862 | 2008-09-05 18:21:37 +0800 | [diff] [blame] | 425 | .rates = SNDRV_PCM_RATE_48000, |
| 426 | .formats = SNDRV_PCM_FMTBIT_S16_LE, }, |
| 427 | .capture = { |
| 428 | .stream_name = "AC97 Capture", |
| 429 | .channels_min = 2, |
| 430 | .channels_max = 2, |
| 431 | .rates = SNDRV_PCM_RATE_48000, |
| 432 | .formats = SNDRV_PCM_FMTBIT_S16_LE, }, |
| 433 | }; |
| 434 | EXPORT_SYMBOL_GPL(bfin_ac97_dai); |
| 435 | |
| 436 | MODULE_AUTHOR("Roy Huang"); |
| 437 | MODULE_DESCRIPTION("AC97 driver for ADI Blackfin"); |
| 438 | MODULE_LICENSE("GPL"); |