Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 1 | /* |
| 2 | * pxa-ssp.c -- ALSA Soc Audio Layer |
| 3 | * |
| 4 | * Copyright 2005,2008 Wolfson Microelectronics PLC. |
| 5 | * Author: Liam Girdwood |
| 6 | * Mark Brown <broonie@opensource.wolfsonmicro.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the |
| 10 | * Free Software Foundation; either version 2 of the License, or (at your |
| 11 | * option) any later version. |
| 12 | * |
| 13 | * TODO: |
| 14 | * o Test network mode for > 16bit sample size |
| 15 | */ |
| 16 | |
| 17 | #include <linux/init.h> |
| 18 | #include <linux/module.h> |
| 19 | #include <linux/platform_device.h> |
| 20 | #include <linux/clk.h> |
| 21 | #include <linux/io.h> |
| 22 | |
Philipp Zabel | 0664678 | 2009-02-03 21:18:26 +0100 | [diff] [blame] | 23 | #include <asm/irq.h> |
| 24 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 25 | #include <sound/core.h> |
| 26 | #include <sound/pcm.h> |
| 27 | #include <sound/initval.h> |
| 28 | #include <sound/pcm_params.h> |
| 29 | #include <sound/soc.h> |
| 30 | #include <sound/pxa2xx-lib.h> |
| 31 | |
| 32 | #include <mach/hardware.h> |
Eric Miao | 7ebc8d5 | 2009-01-02 19:38:42 +0800 | [diff] [blame] | 33 | #include <mach/dma.h> |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 34 | #include <mach/regs-ssp.h> |
| 35 | #include <mach/audio.h> |
| 36 | #include <mach/ssp.h> |
| 37 | |
| 38 | #include "pxa2xx-pcm.h" |
| 39 | #include "pxa-ssp.h" |
| 40 | |
| 41 | /* |
| 42 | * SSP audio private data |
| 43 | */ |
| 44 | struct ssp_priv { |
| 45 | struct ssp_dev dev; |
| 46 | unsigned int sysclk; |
| 47 | int dai_fmt; |
| 48 | #ifdef CONFIG_PM |
| 49 | struct ssp_state state; |
| 50 | #endif |
| 51 | }; |
| 52 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 53 | static void dump_registers(struct ssp_device *ssp) |
| 54 | { |
| 55 | dev_dbg(&ssp->pdev->dev, "SSCR0 0x%08x SSCR1 0x%08x SSTO 0x%08x\n", |
| 56 | ssp_read_reg(ssp, SSCR0), ssp_read_reg(ssp, SSCR1), |
| 57 | ssp_read_reg(ssp, SSTO)); |
| 58 | |
| 59 | dev_dbg(&ssp->pdev->dev, "SSPSP 0x%08x SSSR 0x%08x SSACD 0x%08x\n", |
| 60 | ssp_read_reg(ssp, SSPSP), ssp_read_reg(ssp, SSSR), |
| 61 | ssp_read_reg(ssp, SSACD)); |
| 62 | } |
| 63 | |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 64 | struct pxa2xx_pcm_dma_data { |
| 65 | struct pxa2xx_pcm_dma_params params; |
| 66 | char name[20]; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 67 | }; |
| 68 | |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 69 | static struct pxa2xx_pcm_dma_params * |
Eric Miao | 8eb9fea | 2009-04-23 17:57:46 +0800 | [diff] [blame] | 70 | ssp_get_dma_params(struct ssp_device *ssp, int width4, int out) |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 71 | { |
| 72 | struct pxa2xx_pcm_dma_data *dma; |
| 73 | |
| 74 | dma = kzalloc(sizeof(struct pxa2xx_pcm_dma_data), GFP_KERNEL); |
| 75 | if (dma == NULL) |
| 76 | return NULL; |
| 77 | |
| 78 | snprintf(dma->name, 20, "SSP%d PCM %s %s", ssp->port_id, |
Eric Miao | 8eb9fea | 2009-04-23 17:57:46 +0800 | [diff] [blame] | 79 | width4 ? "32-bit" : "16-bit", out ? "out" : "in"); |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 80 | |
| 81 | dma->params.name = dma->name; |
| 82 | dma->params.drcmr = &DRCMR(out ? ssp->drcmr_tx : ssp->drcmr_rx); |
| 83 | dma->params.dcmd = (out ? (DCMD_INCSRCADDR | DCMD_FLOWTRG) : |
| 84 | (DCMD_INCTRGADDR | DCMD_FLOWSRC)) | |
Eric Miao | 8eb9fea | 2009-04-23 17:57:46 +0800 | [diff] [blame] | 85 | (width4 ? DCMD_WIDTH4 : DCMD_WIDTH2) | DCMD_BURST16; |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 86 | dma->params.dev_addr = ssp->phys_base + SSDR; |
| 87 | |
| 88 | return &dma->params; |
| 89 | } |
| 90 | |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 91 | static int pxa_ssp_startup(struct snd_pcm_substream *substream, |
| 92 | struct snd_soc_dai *dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 93 | { |
| 94 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 95 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; |
| 96 | struct ssp_priv *priv = cpu_dai->private_data; |
| 97 | int ret = 0; |
| 98 | |
| 99 | if (!cpu_dai->active) { |
Philipp Zabel | 0664678 | 2009-02-03 21:18:26 +0100 | [diff] [blame] | 100 | priv->dev.port = cpu_dai->id + 1; |
| 101 | priv->dev.irq = NO_IRQ; |
| 102 | clk_enable(priv->dev.ssp->clk); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 103 | ssp_disable(&priv->dev); |
| 104 | } |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 105 | |
| 106 | if (cpu_dai->dma_data) { |
| 107 | kfree(cpu_dai->dma_data); |
| 108 | cpu_dai->dma_data = NULL; |
| 109 | } |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 110 | return ret; |
| 111 | } |
| 112 | |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 113 | static void pxa_ssp_shutdown(struct snd_pcm_substream *substream, |
| 114 | struct snd_soc_dai *dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 115 | { |
| 116 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 117 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; |
| 118 | struct ssp_priv *priv = cpu_dai->private_data; |
| 119 | |
| 120 | if (!cpu_dai->active) { |
| 121 | ssp_disable(&priv->dev); |
Philipp Zabel | 0664678 | 2009-02-03 21:18:26 +0100 | [diff] [blame] | 122 | clk_disable(priv->dev.ssp->clk); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 123 | } |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 124 | |
| 125 | if (cpu_dai->dma_data) { |
| 126 | kfree(cpu_dai->dma_data); |
| 127 | cpu_dai->dma_data = NULL; |
| 128 | } |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | #ifdef CONFIG_PM |
| 132 | |
Mark Brown | dc7d7b8 | 2008-12-03 18:21:52 +0000 | [diff] [blame] | 133 | static int pxa_ssp_suspend(struct snd_soc_dai *cpu_dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 134 | { |
| 135 | struct ssp_priv *priv = cpu_dai->private_data; |
| 136 | |
| 137 | if (!cpu_dai->active) |
| 138 | return 0; |
| 139 | |
| 140 | ssp_save_state(&priv->dev, &priv->state); |
| 141 | clk_disable(priv->dev.ssp->clk); |
| 142 | return 0; |
| 143 | } |
| 144 | |
Mark Brown | dc7d7b8 | 2008-12-03 18:21:52 +0000 | [diff] [blame] | 145 | static int pxa_ssp_resume(struct snd_soc_dai *cpu_dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 146 | { |
| 147 | struct ssp_priv *priv = cpu_dai->private_data; |
| 148 | |
| 149 | if (!cpu_dai->active) |
| 150 | return 0; |
| 151 | |
| 152 | clk_enable(priv->dev.ssp->clk); |
| 153 | ssp_restore_state(&priv->dev, &priv->state); |
| 154 | ssp_enable(&priv->dev); |
| 155 | |
| 156 | return 0; |
| 157 | } |
| 158 | |
| 159 | #else |
| 160 | #define pxa_ssp_suspend NULL |
| 161 | #define pxa_ssp_resume NULL |
| 162 | #endif |
| 163 | |
| 164 | /** |
| 165 | * ssp_set_clkdiv - set SSP clock divider |
| 166 | * @div: serial clock rate divider |
| 167 | */ |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 168 | static void ssp_set_scr(struct ssp_device *ssp, u32 div) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 169 | { |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 170 | u32 sscr0 = ssp_read_reg(ssp, SSCR0); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 171 | |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 172 | if (cpu_is_pxa25x() && ssp->type == PXA25x_SSP) { |
| 173 | sscr0 &= ~0x0000ff00; |
| 174 | sscr0 |= ((div - 2)/2) << 8; /* 2..512 */ |
| 175 | } else { |
| 176 | sscr0 &= ~0x000fff00; |
| 177 | sscr0 |= (div - 1) << 8; /* 1..4096 */ |
| 178 | } |
| 179 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * ssp_get_clkdiv - get SSP clock divider |
| 184 | */ |
| 185 | static u32 ssp_get_scr(struct ssp_device *ssp) |
| 186 | { |
| 187 | u32 sscr0 = ssp_read_reg(ssp, SSCR0); |
| 188 | u32 div; |
| 189 | |
| 190 | if (cpu_is_pxa25x() && ssp->type == PXA25x_SSP) |
| 191 | div = ((sscr0 >> 8) & 0xff) * 2 + 2; |
| 192 | else |
| 193 | div = ((sscr0 >> 8) & 0xfff) + 1; |
| 194 | return div; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | /* |
| 198 | * Set the SSP ports SYSCLK. |
| 199 | */ |
| 200 | static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai, |
| 201 | int clk_id, unsigned int freq, int dir) |
| 202 | { |
| 203 | struct ssp_priv *priv = cpu_dai->private_data; |
| 204 | struct ssp_device *ssp = priv->dev.ssp; |
| 205 | int val; |
| 206 | |
| 207 | u32 sscr0 = ssp_read_reg(ssp, SSCR0) & |
Daniel Mack | 20a41ea | 2009-03-04 21:16:57 +0100 | [diff] [blame] | 208 | ~(SSCR0_ECS | SSCR0_NCS | SSCR0_MOD | SSCR0_ACS); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 209 | |
| 210 | dev_dbg(&ssp->pdev->dev, |
Roel Kluin | 449bd54 | 2009-05-27 17:08:39 -0700 | [diff] [blame] | 211 | "pxa_ssp_set_dai_sysclk id: %d, clk_id %d, freq %u\n", |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 212 | cpu_dai->id, clk_id, freq); |
| 213 | |
| 214 | switch (clk_id) { |
| 215 | case PXA_SSP_CLK_NET_PLL: |
| 216 | sscr0 |= SSCR0_MOD; |
| 217 | break; |
| 218 | case PXA_SSP_CLK_PLL: |
| 219 | /* Internal PLL is fixed */ |
| 220 | if (cpu_is_pxa25x()) |
| 221 | priv->sysclk = 1843200; |
| 222 | else |
| 223 | priv->sysclk = 13000000; |
| 224 | break; |
| 225 | case PXA_SSP_CLK_EXT: |
| 226 | priv->sysclk = freq; |
| 227 | sscr0 |= SSCR0_ECS; |
| 228 | break; |
| 229 | case PXA_SSP_CLK_NET: |
| 230 | priv->sysclk = freq; |
| 231 | sscr0 |= SSCR0_NCS | SSCR0_MOD; |
| 232 | break; |
| 233 | case PXA_SSP_CLK_AUDIO: |
| 234 | priv->sysclk = 0; |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 235 | ssp_set_scr(ssp, 1); |
Daniel Mack | 20a41ea | 2009-03-04 21:16:57 +0100 | [diff] [blame] | 236 | sscr0 |= SSCR0_ACS; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 237 | break; |
| 238 | default: |
| 239 | return -ENODEV; |
| 240 | } |
| 241 | |
| 242 | /* The SSP clock must be disabled when changing SSP clock mode |
| 243 | * on PXA2xx. On PXA3xx it must be enabled when doing so. */ |
| 244 | if (!cpu_is_pxa3xx()) |
| 245 | clk_disable(priv->dev.ssp->clk); |
| 246 | val = ssp_read_reg(ssp, SSCR0) | sscr0; |
| 247 | ssp_write_reg(ssp, SSCR0, val); |
| 248 | if (!cpu_is_pxa3xx()) |
| 249 | clk_enable(priv->dev.ssp->clk); |
| 250 | |
| 251 | return 0; |
| 252 | } |
| 253 | |
| 254 | /* |
| 255 | * Set the SSP clock dividers. |
| 256 | */ |
| 257 | static int pxa_ssp_set_dai_clkdiv(struct snd_soc_dai *cpu_dai, |
| 258 | int div_id, int div) |
| 259 | { |
| 260 | struct ssp_priv *priv = cpu_dai->private_data; |
| 261 | struct ssp_device *ssp = priv->dev.ssp; |
| 262 | int val; |
| 263 | |
| 264 | switch (div_id) { |
| 265 | case PXA_SSP_AUDIO_DIV_ACDS: |
| 266 | val = (ssp_read_reg(ssp, SSACD) & ~0x7) | SSACD_ACDS(div); |
| 267 | ssp_write_reg(ssp, SSACD, val); |
| 268 | break; |
| 269 | case PXA_SSP_AUDIO_DIV_SCDB: |
| 270 | val = ssp_read_reg(ssp, SSACD); |
| 271 | val &= ~SSACD_SCDB; |
| 272 | #if defined(CONFIG_PXA3xx) |
| 273 | if (cpu_is_pxa3xx()) |
| 274 | val &= ~SSACD_SCDX8; |
| 275 | #endif |
| 276 | switch (div) { |
| 277 | case PXA_SSP_CLK_SCDB_1: |
| 278 | val |= SSACD_SCDB; |
| 279 | break; |
| 280 | case PXA_SSP_CLK_SCDB_4: |
| 281 | break; |
| 282 | #if defined(CONFIG_PXA3xx) |
| 283 | case PXA_SSP_CLK_SCDB_8: |
| 284 | if (cpu_is_pxa3xx()) |
| 285 | val |= SSACD_SCDX8; |
| 286 | else |
| 287 | return -EINVAL; |
| 288 | break; |
| 289 | #endif |
| 290 | default: |
| 291 | return -EINVAL; |
| 292 | } |
| 293 | ssp_write_reg(ssp, SSACD, val); |
| 294 | break; |
| 295 | case PXA_SSP_DIV_SCR: |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 296 | ssp_set_scr(ssp, div); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 297 | break; |
| 298 | default: |
| 299 | return -ENODEV; |
| 300 | } |
| 301 | |
| 302 | return 0; |
| 303 | } |
| 304 | |
| 305 | /* |
| 306 | * Configure the PLL frequency pxa27x and (afaik - pxa320 only) |
| 307 | */ |
Mark Brown | 8548803 | 2009-09-05 18:52:16 +0100 | [diff] [blame^] | 308 | static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai, int pll_id, |
| 309 | int source, unsigned int freq_in, unsigned int freq_out) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 310 | { |
| 311 | struct ssp_priv *priv = cpu_dai->private_data; |
| 312 | struct ssp_device *ssp = priv->dev.ssp; |
| 313 | u32 ssacd = ssp_read_reg(ssp, SSACD) & ~0x70; |
| 314 | |
| 315 | #if defined(CONFIG_PXA3xx) |
| 316 | if (cpu_is_pxa3xx()) |
| 317 | ssp_write_reg(ssp, SSACDD, 0); |
| 318 | #endif |
| 319 | |
| 320 | switch (freq_out) { |
| 321 | case 5622000: |
| 322 | break; |
| 323 | case 11345000: |
| 324 | ssacd |= (0x1 << 4); |
| 325 | break; |
| 326 | case 12235000: |
| 327 | ssacd |= (0x2 << 4); |
| 328 | break; |
| 329 | case 14857000: |
| 330 | ssacd |= (0x3 << 4); |
| 331 | break; |
| 332 | case 32842000: |
| 333 | ssacd |= (0x4 << 4); |
| 334 | break; |
| 335 | case 48000000: |
| 336 | ssacd |= (0x5 << 4); |
| 337 | break; |
| 338 | case 0: |
| 339 | /* Disable */ |
| 340 | break; |
| 341 | |
| 342 | default: |
| 343 | #ifdef CONFIG_PXA3xx |
| 344 | /* PXA3xx has a clock ditherer which can be used to generate |
| 345 | * a wider range of frequencies - calculate a value for it. |
| 346 | */ |
| 347 | if (cpu_is_pxa3xx()) { |
| 348 | u32 val; |
| 349 | u64 tmp = 19968; |
| 350 | tmp *= 1000000; |
| 351 | do_div(tmp, freq_out); |
| 352 | val = tmp; |
| 353 | |
| 354 | val = (val << 16) | 64;; |
| 355 | ssp_write_reg(ssp, SSACDD, val); |
| 356 | |
| 357 | ssacd |= (0x6 << 4); |
| 358 | |
| 359 | dev_dbg(&ssp->pdev->dev, |
Roel Kluin | 449bd54 | 2009-05-27 17:08:39 -0700 | [diff] [blame] | 360 | "Using SSACDD %x to supply %uHz\n", |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 361 | val, freq_out); |
| 362 | break; |
| 363 | } |
| 364 | #endif |
| 365 | |
| 366 | return -EINVAL; |
| 367 | } |
| 368 | |
| 369 | ssp_write_reg(ssp, SSACD, ssacd); |
| 370 | |
| 371 | return 0; |
| 372 | } |
| 373 | |
| 374 | /* |
| 375 | * Set the active slots in TDM/Network mode |
| 376 | */ |
| 377 | static int pxa_ssp_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai, |
Daniel Ribeiro | a5479e3 | 2009-06-15 21:44:31 -0300 | [diff] [blame] | 378 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 379 | { |
| 380 | struct ssp_priv *priv = cpu_dai->private_data; |
| 381 | struct ssp_device *ssp = priv->dev.ssp; |
| 382 | u32 sscr0; |
| 383 | |
Daniel Ribeiro | a5479e3 | 2009-06-15 21:44:31 -0300 | [diff] [blame] | 384 | sscr0 = ssp_read_reg(ssp, SSCR0); |
| 385 | sscr0 &= ~(SSCR0_MOD | SSCR0_SlotsPerFrm(8) | SSCR0_EDSS | SSCR0_DSS); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 386 | |
Daniel Ribeiro | a5479e3 | 2009-06-15 21:44:31 -0300 | [diff] [blame] | 387 | /* set slot width */ |
| 388 | if (slot_width > 16) |
| 389 | sscr0 |= SSCR0_EDSS | SSCR0_DataSize(slot_width - 16); |
| 390 | else |
| 391 | sscr0 |= SSCR0_DataSize(slot_width); |
| 392 | |
| 393 | if (slots > 1) { |
| 394 | /* enable network mode */ |
| 395 | sscr0 |= SSCR0_MOD; |
| 396 | |
| 397 | /* set number of active slots */ |
| 398 | sscr0 |= SSCR0_SlotsPerFrm(slots); |
| 399 | |
| 400 | /* set active slot mask */ |
| 401 | ssp_write_reg(ssp, SSTSA, tx_mask); |
| 402 | ssp_write_reg(ssp, SSRSA, rx_mask); |
| 403 | } |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 404 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 405 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 406 | return 0; |
| 407 | } |
| 408 | |
| 409 | /* |
| 410 | * Tristate the SSP DAI lines |
| 411 | */ |
| 412 | static int pxa_ssp_set_dai_tristate(struct snd_soc_dai *cpu_dai, |
| 413 | int tristate) |
| 414 | { |
| 415 | struct ssp_priv *priv = cpu_dai->private_data; |
| 416 | struct ssp_device *ssp = priv->dev.ssp; |
| 417 | u32 sscr1; |
| 418 | |
| 419 | sscr1 = ssp_read_reg(ssp, SSCR1); |
| 420 | if (tristate) |
| 421 | sscr1 &= ~SSCR1_TTE; |
| 422 | else |
| 423 | sscr1 |= SSCR1_TTE; |
| 424 | ssp_write_reg(ssp, SSCR1, sscr1); |
| 425 | |
| 426 | return 0; |
| 427 | } |
| 428 | |
| 429 | /* |
| 430 | * Set up the SSP DAI format. |
| 431 | * The SSP Port must be inactive before calling this function as the |
| 432 | * physical interface format is changed. |
| 433 | */ |
| 434 | static int pxa_ssp_set_dai_fmt(struct snd_soc_dai *cpu_dai, |
| 435 | unsigned int fmt) |
| 436 | { |
| 437 | struct ssp_priv *priv = cpu_dai->private_data; |
| 438 | struct ssp_device *ssp = priv->dev.ssp; |
| 439 | u32 sscr0; |
| 440 | u32 sscr1; |
| 441 | u32 sspsp; |
| 442 | |
Daniel Mack | cbf1146 | 2009-03-10 16:41:00 +0100 | [diff] [blame] | 443 | /* check if we need to change anything at all */ |
| 444 | if (priv->dai_fmt == fmt) |
| 445 | return 0; |
| 446 | |
| 447 | /* we can only change the settings if the port is not in use */ |
| 448 | if (ssp_read_reg(ssp, SSCR0) & SSCR0_SSE) { |
| 449 | dev_err(&ssp->pdev->dev, |
| 450 | "can't change hardware dai format: stream is in use"); |
| 451 | return -EINVAL; |
| 452 | } |
| 453 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 454 | /* reset port settings */ |
| 455 | sscr0 = ssp_read_reg(ssp, SSCR0) & |
Daniel Mack | 20a41ea | 2009-03-04 21:16:57 +0100 | [diff] [blame] | 456 | (SSCR0_ECS | SSCR0_NCS | SSCR0_MOD | SSCR0_ACS); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 457 | sscr1 = SSCR1_RxTresh(8) | SSCR1_TxTresh(7); |
| 458 | sspsp = 0; |
| 459 | |
| 460 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 461 | case SND_SOC_DAIFMT_CBM_CFM: |
| 462 | sscr1 |= SSCR1_SCLKDIR | SSCR1_SFRMDIR; |
| 463 | break; |
| 464 | case SND_SOC_DAIFMT_CBM_CFS: |
| 465 | sscr1 |= SSCR1_SCLKDIR; |
| 466 | break; |
| 467 | case SND_SOC_DAIFMT_CBS_CFS: |
| 468 | break; |
| 469 | default: |
| 470 | return -EINVAL; |
| 471 | } |
| 472 | |
Daniel Ribeiro | fa44c07 | 2009-06-10 15:23:24 -0300 | [diff] [blame] | 473 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 474 | case SND_SOC_DAIFMT_NB_NF: |
| 475 | sspsp |= SSPSP_SFRMP; |
| 476 | break; |
| 477 | case SND_SOC_DAIFMT_NB_IF: |
| 478 | break; |
| 479 | case SND_SOC_DAIFMT_IB_IF: |
| 480 | sspsp |= SSPSP_SCMODE(2); |
| 481 | break; |
| 482 | case SND_SOC_DAIFMT_IB_NF: |
| 483 | sspsp |= SSPSP_SCMODE(2) | SSPSP_SFRMP; |
| 484 | break; |
| 485 | default: |
| 486 | return -EINVAL; |
| 487 | } |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 488 | |
| 489 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 490 | case SND_SOC_DAIFMT_I2S: |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 491 | sscr0 |= SSCR0_PSP; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 492 | sscr1 |= SSCR1_RWOT | SSCR1_TRAIL; |
Mark Brown | 0ce36c5 | 2009-03-13 14:26:08 +0000 | [diff] [blame] | 493 | /* See hw_params() */ |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 494 | break; |
| 495 | |
| 496 | case SND_SOC_DAIFMT_DSP_A: |
| 497 | sspsp |= SSPSP_FSRT; |
| 498 | case SND_SOC_DAIFMT_DSP_B: |
| 499 | sscr0 |= SSCR0_MOD | SSCR0_PSP; |
| 500 | sscr1 |= SSCR1_TRAIL | SSCR1_RWOT; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 501 | break; |
| 502 | |
| 503 | default: |
| 504 | return -EINVAL; |
| 505 | } |
| 506 | |
| 507 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 508 | ssp_write_reg(ssp, SSCR1, sscr1); |
| 509 | ssp_write_reg(ssp, SSPSP, sspsp); |
| 510 | |
| 511 | dump_registers(ssp); |
| 512 | |
| 513 | /* Since we are configuring the timings for the format by hand |
| 514 | * we have to defer some things until hw_params() where we |
| 515 | * know parameters like the sample size. |
| 516 | */ |
| 517 | priv->dai_fmt = fmt; |
| 518 | |
| 519 | return 0; |
| 520 | } |
| 521 | |
| 522 | /* |
| 523 | * Set the SSP audio DMA parameters and sample size. |
| 524 | * Can be called multiple times by oss emulation. |
| 525 | */ |
| 526 | static int pxa_ssp_hw_params(struct snd_pcm_substream *substream, |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 527 | struct snd_pcm_hw_params *params, |
| 528 | struct snd_soc_dai *dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 529 | { |
| 530 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 531 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; |
| 532 | struct ssp_priv *priv = cpu_dai->private_data; |
| 533 | struct ssp_device *ssp = priv->dev.ssp; |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 534 | int chn = params_channels(params); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 535 | u32 sscr0; |
| 536 | u32 sspsp; |
| 537 | int width = snd_pcm_format_physical_width(params_format(params)); |
Philipp Zabel | 9242906 | 2009-03-19 09:32:01 +0100 | [diff] [blame] | 538 | int ttsa = ssp_read_reg(ssp, SSTSA) & 0xf; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 539 | |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 540 | /* generate correct DMA params */ |
| 541 | if (cpu_dai->dma_data) |
| 542 | kfree(cpu_dai->dma_data); |
| 543 | |
Philipp Zabel | 9242906 | 2009-03-19 09:32:01 +0100 | [diff] [blame] | 544 | /* Network mode with one active slot (ttsa == 1) can be used |
| 545 | * to force 16-bit frame width on the wire (for S16_LE), even |
| 546 | * with two channels. Use 16-bit DMA transfers for this case. |
| 547 | */ |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 548 | cpu_dai->dma_data = ssp_get_dma_params(ssp, |
| 549 | ((chn == 2) && (ttsa != 1)) || (width == 32), |
| 550 | substream->stream == SNDRV_PCM_STREAM_PLAYBACK); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 551 | |
| 552 | /* we can only change the settings if the port is not in use */ |
| 553 | if (ssp_read_reg(ssp, SSCR0) & SSCR0_SSE) |
| 554 | return 0; |
| 555 | |
| 556 | /* clear selected SSP bits */ |
| 557 | sscr0 = ssp_read_reg(ssp, SSCR0) & ~(SSCR0_DSS | SSCR0_EDSS); |
| 558 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 559 | |
| 560 | /* bit size */ |
| 561 | sscr0 = ssp_read_reg(ssp, SSCR0); |
| 562 | switch (params_format(params)) { |
| 563 | case SNDRV_PCM_FORMAT_S16_LE: |
| 564 | #ifdef CONFIG_PXA3xx |
| 565 | if (cpu_is_pxa3xx()) |
| 566 | sscr0 |= SSCR0_FPCKE; |
| 567 | #endif |
| 568 | sscr0 |= SSCR0_DataSize(16); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 569 | break; |
| 570 | case SNDRV_PCM_FORMAT_S24_LE: |
| 571 | sscr0 |= (SSCR0_EDSS | SSCR0_DataSize(8)); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 572 | break; |
| 573 | case SNDRV_PCM_FORMAT_S32_LE: |
| 574 | sscr0 |= (SSCR0_EDSS | SSCR0_DataSize(16)); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 575 | break; |
| 576 | } |
| 577 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 578 | |
| 579 | switch (priv->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 580 | case SND_SOC_DAIFMT_I2S: |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 581 | sspsp = ssp_read_reg(ssp, SSPSP); |
| 582 | |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 583 | if ((ssp_get_scr(ssp) == 4) && (width == 16)) { |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 584 | /* This is a special case where the bitclk is 64fs |
| 585 | * and we're not dealing with 2*32 bits of audio |
| 586 | * samples. |
| 587 | * |
| 588 | * The SSP values used for that are all found out by |
| 589 | * trying and failing a lot; some of the registers |
| 590 | * needed for that mode are only available on PXA3xx. |
| 591 | */ |
| 592 | |
| 593 | #ifdef CONFIG_PXA3xx |
| 594 | if (!cpu_is_pxa3xx()) |
| 595 | return -EINVAL; |
| 596 | |
| 597 | sspsp |= SSPSP_SFRMWDTH(width * 2); |
| 598 | sspsp |= SSPSP_SFRMDLY(width * 4); |
| 599 | sspsp |= SSPSP_EDMYSTOP(3); |
| 600 | sspsp |= SSPSP_DMYSTOP(3); |
| 601 | sspsp |= SSPSP_DMYSTRT(1); |
| 602 | #else |
| 603 | return -EINVAL; |
| 604 | #endif |
Mark Brown | 0ce36c5 | 2009-03-13 14:26:08 +0000 | [diff] [blame] | 605 | } else { |
| 606 | /* The frame width is the width the LRCLK is |
| 607 | * asserted for; the delay is expressed in |
| 608 | * half cycle units. We need the extra cycle |
| 609 | * because the data starts clocking out one BCLK |
| 610 | * after LRCLK changes polarity. |
| 611 | */ |
| 612 | sspsp |= SSPSP_SFRMWDTH(width + 1); |
| 613 | sspsp |= SSPSP_SFRMDLY((width + 1) * 2); |
| 614 | sspsp |= SSPSP_DMYSTRT(1); |
| 615 | } |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 616 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 617 | ssp_write_reg(ssp, SSPSP, sspsp); |
| 618 | break; |
| 619 | default: |
| 620 | break; |
| 621 | } |
| 622 | |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 623 | /* When we use a network mode, we always require TDM slots |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 624 | * - complain loudly and fail if they've not been set up yet. |
| 625 | */ |
Philipp Zabel | 9242906 | 2009-03-19 09:32:01 +0100 | [diff] [blame] | 626 | if ((sscr0 & SSCR0_MOD) && !ttsa) { |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 627 | dev_err(&ssp->pdev->dev, "No TDM timeslot configured\n"); |
| 628 | return -EINVAL; |
| 629 | } |
| 630 | |
| 631 | dump_registers(ssp); |
| 632 | |
| 633 | return 0; |
| 634 | } |
| 635 | |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 636 | static int pxa_ssp_trigger(struct snd_pcm_substream *substream, int cmd, |
| 637 | struct snd_soc_dai *dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 638 | { |
| 639 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 640 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; |
| 641 | int ret = 0; |
| 642 | struct ssp_priv *priv = cpu_dai->private_data; |
| 643 | struct ssp_device *ssp = priv->dev.ssp; |
| 644 | int val; |
| 645 | |
| 646 | switch (cmd) { |
| 647 | case SNDRV_PCM_TRIGGER_RESUME: |
| 648 | ssp_enable(&priv->dev); |
| 649 | break; |
| 650 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| 651 | val = ssp_read_reg(ssp, SSCR1); |
| 652 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 653 | val |= SSCR1_TSRE; |
| 654 | else |
| 655 | val |= SSCR1_RSRE; |
| 656 | ssp_write_reg(ssp, SSCR1, val); |
| 657 | val = ssp_read_reg(ssp, SSSR); |
| 658 | ssp_write_reg(ssp, SSSR, val); |
| 659 | break; |
| 660 | case SNDRV_PCM_TRIGGER_START: |
| 661 | val = ssp_read_reg(ssp, SSCR1); |
| 662 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 663 | val |= SSCR1_TSRE; |
| 664 | else |
| 665 | val |= SSCR1_RSRE; |
| 666 | ssp_write_reg(ssp, SSCR1, val); |
| 667 | ssp_enable(&priv->dev); |
| 668 | break; |
| 669 | case SNDRV_PCM_TRIGGER_STOP: |
| 670 | val = ssp_read_reg(ssp, SSCR1); |
| 671 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 672 | val &= ~SSCR1_TSRE; |
| 673 | else |
| 674 | val &= ~SSCR1_RSRE; |
| 675 | ssp_write_reg(ssp, SSCR1, val); |
| 676 | break; |
| 677 | case SNDRV_PCM_TRIGGER_SUSPEND: |
| 678 | ssp_disable(&priv->dev); |
| 679 | break; |
| 680 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| 681 | val = ssp_read_reg(ssp, SSCR1); |
| 682 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 683 | val &= ~SSCR1_TSRE; |
| 684 | else |
| 685 | val &= ~SSCR1_RSRE; |
| 686 | ssp_write_reg(ssp, SSCR1, val); |
| 687 | break; |
| 688 | |
| 689 | default: |
| 690 | ret = -EINVAL; |
| 691 | } |
| 692 | |
| 693 | dump_registers(ssp); |
| 694 | |
| 695 | return ret; |
| 696 | } |
| 697 | |
| 698 | static int pxa_ssp_probe(struct platform_device *pdev, |
| 699 | struct snd_soc_dai *dai) |
| 700 | { |
| 701 | struct ssp_priv *priv; |
| 702 | int ret; |
| 703 | |
| 704 | priv = kzalloc(sizeof(struct ssp_priv), GFP_KERNEL); |
| 705 | if (!priv) |
| 706 | return -ENOMEM; |
| 707 | |
Philipp Zabel | 0664678 | 2009-02-03 21:18:26 +0100 | [diff] [blame] | 708 | priv->dev.ssp = ssp_request(dai->id + 1, "SoC audio"); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 709 | if (priv->dev.ssp == NULL) { |
| 710 | ret = -ENODEV; |
| 711 | goto err_priv; |
| 712 | } |
| 713 | |
Daniel Mack | a5735b7 | 2009-04-15 20:24:45 +0200 | [diff] [blame] | 714 | priv->dai_fmt = (unsigned int) -1; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 715 | dai->private_data = priv; |
| 716 | |
| 717 | return 0; |
| 718 | |
| 719 | err_priv: |
| 720 | kfree(priv); |
| 721 | return ret; |
| 722 | } |
| 723 | |
| 724 | static void pxa_ssp_remove(struct platform_device *pdev, |
| 725 | struct snd_soc_dai *dai) |
| 726 | { |
| 727 | struct ssp_priv *priv = dai->private_data; |
| 728 | ssp_free(priv->dev.ssp); |
| 729 | } |
| 730 | |
| 731 | #define PXA_SSP_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
| 732 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ |
| 733 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \ |
| 734 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) |
| 735 | |
| 736 | #define PXA_SSP_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ |
| 737 | SNDRV_PCM_FMTBIT_S24_LE | \ |
| 738 | SNDRV_PCM_FMTBIT_S32_LE) |
| 739 | |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 740 | static struct snd_soc_dai_ops pxa_ssp_dai_ops = { |
| 741 | .startup = pxa_ssp_startup, |
| 742 | .shutdown = pxa_ssp_shutdown, |
| 743 | .trigger = pxa_ssp_trigger, |
| 744 | .hw_params = pxa_ssp_hw_params, |
| 745 | .set_sysclk = pxa_ssp_set_dai_sysclk, |
| 746 | .set_clkdiv = pxa_ssp_set_dai_clkdiv, |
| 747 | .set_pll = pxa_ssp_set_dai_pll, |
| 748 | .set_fmt = pxa_ssp_set_dai_fmt, |
| 749 | .set_tdm_slot = pxa_ssp_set_dai_tdm_slot, |
| 750 | .set_tristate = pxa_ssp_set_dai_tristate, |
| 751 | }; |
| 752 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 753 | struct snd_soc_dai pxa_ssp_dai[] = { |
| 754 | { |
| 755 | .name = "pxa2xx-ssp1", |
| 756 | .id = 0, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 757 | .probe = pxa_ssp_probe, |
| 758 | .remove = pxa_ssp_remove, |
| 759 | .suspend = pxa_ssp_suspend, |
| 760 | .resume = pxa_ssp_resume, |
| 761 | .playback = { |
| 762 | .channels_min = 1, |
| 763 | .channels_max = 2, |
| 764 | .rates = PXA_SSP_RATES, |
| 765 | .formats = PXA_SSP_FORMATS, |
| 766 | }, |
| 767 | .capture = { |
| 768 | .channels_min = 1, |
| 769 | .channels_max = 2, |
| 770 | .rates = PXA_SSP_RATES, |
| 771 | .formats = PXA_SSP_FORMATS, |
| 772 | }, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 773 | .ops = &pxa_ssp_dai_ops, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 774 | }, |
| 775 | { .name = "pxa2xx-ssp2", |
| 776 | .id = 1, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 777 | .probe = pxa_ssp_probe, |
| 778 | .remove = pxa_ssp_remove, |
| 779 | .suspend = pxa_ssp_suspend, |
| 780 | .resume = pxa_ssp_resume, |
| 781 | .playback = { |
| 782 | .channels_min = 1, |
| 783 | .channels_max = 2, |
| 784 | .rates = PXA_SSP_RATES, |
| 785 | .formats = PXA_SSP_FORMATS, |
| 786 | }, |
| 787 | .capture = { |
| 788 | .channels_min = 1, |
| 789 | .channels_max = 2, |
| 790 | .rates = PXA_SSP_RATES, |
| 791 | .formats = PXA_SSP_FORMATS, |
| 792 | }, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 793 | .ops = &pxa_ssp_dai_ops, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 794 | }, |
| 795 | { |
| 796 | .name = "pxa2xx-ssp3", |
| 797 | .id = 2, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 798 | .probe = pxa_ssp_probe, |
| 799 | .remove = pxa_ssp_remove, |
| 800 | .suspend = pxa_ssp_suspend, |
| 801 | .resume = pxa_ssp_resume, |
| 802 | .playback = { |
| 803 | .channels_min = 1, |
| 804 | .channels_max = 2, |
| 805 | .rates = PXA_SSP_RATES, |
| 806 | .formats = PXA_SSP_FORMATS, |
| 807 | }, |
| 808 | .capture = { |
| 809 | .channels_min = 1, |
| 810 | .channels_max = 2, |
| 811 | .rates = PXA_SSP_RATES, |
| 812 | .formats = PXA_SSP_FORMATS, |
| 813 | }, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 814 | .ops = &pxa_ssp_dai_ops, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 815 | }, |
| 816 | { |
| 817 | .name = "pxa2xx-ssp4", |
| 818 | .id = 3, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 819 | .probe = pxa_ssp_probe, |
| 820 | .remove = pxa_ssp_remove, |
| 821 | .suspend = pxa_ssp_suspend, |
| 822 | .resume = pxa_ssp_resume, |
| 823 | .playback = { |
| 824 | .channels_min = 1, |
| 825 | .channels_max = 2, |
| 826 | .rates = PXA_SSP_RATES, |
| 827 | .formats = PXA_SSP_FORMATS, |
| 828 | }, |
| 829 | .capture = { |
| 830 | .channels_min = 1, |
| 831 | .channels_max = 2, |
| 832 | .rates = PXA_SSP_RATES, |
| 833 | .formats = PXA_SSP_FORMATS, |
| 834 | }, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 835 | .ops = &pxa_ssp_dai_ops, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 836 | }, |
| 837 | }; |
| 838 | EXPORT_SYMBOL_GPL(pxa_ssp_dai); |
| 839 | |
Takashi Iwai | c9b3a40 | 2008-12-10 07:47:22 +0100 | [diff] [blame] | 840 | static int __init pxa_ssp_init(void) |
Mark Brown | 3f4b783 | 2008-12-03 19:26:35 +0000 | [diff] [blame] | 841 | { |
| 842 | return snd_soc_register_dais(pxa_ssp_dai, ARRAY_SIZE(pxa_ssp_dai)); |
| 843 | } |
| 844 | module_init(pxa_ssp_init); |
| 845 | |
| 846 | static void __exit pxa_ssp_exit(void) |
| 847 | { |
| 848 | snd_soc_unregister_dais(pxa_ssp_dai, ARRAY_SIZE(pxa_ssp_dai)); |
| 849 | } |
| 850 | module_exit(pxa_ssp_exit); |
| 851 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 852 | /* Module information */ |
| 853 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
| 854 | MODULE_DESCRIPTION("PXA SSP/PCM SoC Interface"); |
| 855 | MODULE_LICENSE("GPL"); |