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 { |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 45 | struct ssp_device *ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 46 | unsigned int sysclk; |
| 47 | int dai_fmt; |
| 48 | #ifdef CONFIG_PM |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 49 | uint32_t cr0; |
| 50 | uint32_t cr1; |
| 51 | uint32_t to; |
| 52 | uint32_t psp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 53 | #endif |
| 54 | }; |
| 55 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 56 | static void dump_registers(struct ssp_device *ssp) |
| 57 | { |
| 58 | dev_dbg(&ssp->pdev->dev, "SSCR0 0x%08x SSCR1 0x%08x SSTO 0x%08x\n", |
| 59 | ssp_read_reg(ssp, SSCR0), ssp_read_reg(ssp, SSCR1), |
| 60 | ssp_read_reg(ssp, SSTO)); |
| 61 | |
| 62 | dev_dbg(&ssp->pdev->dev, "SSPSP 0x%08x SSSR 0x%08x SSACD 0x%08x\n", |
| 63 | ssp_read_reg(ssp, SSPSP), ssp_read_reg(ssp, SSSR), |
| 64 | ssp_read_reg(ssp, SSACD)); |
| 65 | } |
| 66 | |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 67 | static void ssp_enable(struct ssp_device *ssp) |
| 68 | { |
| 69 | uint32_t sscr0; |
| 70 | |
| 71 | sscr0 = __raw_readl(ssp->mmio_base + SSCR0) | SSCR0_SSE; |
| 72 | __raw_writel(sscr0, ssp->mmio_base + SSCR0); |
| 73 | } |
| 74 | |
| 75 | static void ssp_disable(struct ssp_device *ssp) |
| 76 | { |
| 77 | uint32_t sscr0; |
| 78 | |
| 79 | sscr0 = __raw_readl(ssp->mmio_base + SSCR0) & ~SSCR0_SSE; |
| 80 | __raw_writel(sscr0, ssp->mmio_base + SSCR0); |
| 81 | } |
| 82 | |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 83 | struct pxa2xx_pcm_dma_data { |
| 84 | struct pxa2xx_pcm_dma_params params; |
| 85 | char name[20]; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 86 | }; |
| 87 | |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 88 | static struct pxa2xx_pcm_dma_params * |
Eric Miao | 8eb9fea | 2009-04-23 17:57:46 +0800 | [diff] [blame] | 89 | ssp_get_dma_params(struct ssp_device *ssp, int width4, int out) |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 90 | { |
| 91 | struct pxa2xx_pcm_dma_data *dma; |
| 92 | |
| 93 | dma = kzalloc(sizeof(struct pxa2xx_pcm_dma_data), GFP_KERNEL); |
| 94 | if (dma == NULL) |
| 95 | return NULL; |
| 96 | |
| 97 | snprintf(dma->name, 20, "SSP%d PCM %s %s", ssp->port_id, |
Eric Miao | 8eb9fea | 2009-04-23 17:57:46 +0800 | [diff] [blame] | 98 | width4 ? "32-bit" : "16-bit", out ? "out" : "in"); |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 99 | |
| 100 | dma->params.name = dma->name; |
| 101 | dma->params.drcmr = &DRCMR(out ? ssp->drcmr_tx : ssp->drcmr_rx); |
| 102 | dma->params.dcmd = (out ? (DCMD_INCSRCADDR | DCMD_FLOWTRG) : |
| 103 | (DCMD_INCTRGADDR | DCMD_FLOWSRC)) | |
Eric Miao | 8eb9fea | 2009-04-23 17:57:46 +0800 | [diff] [blame] | 104 | (width4 ? DCMD_WIDTH4 : DCMD_WIDTH2) | DCMD_BURST16; |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 105 | dma->params.dev_addr = ssp->phys_base + SSDR; |
| 106 | |
| 107 | return &dma->params; |
| 108 | } |
| 109 | |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 110 | static int pxa_ssp_startup(struct snd_pcm_substream *substream, |
| 111 | struct snd_soc_dai *dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 112 | { |
| 113 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 114 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; |
| 115 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 116 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 117 | int ret = 0; |
| 118 | |
| 119 | if (!cpu_dai->active) { |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 120 | clk_enable(ssp->clk); |
| 121 | ssp_disable(ssp); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 122 | } |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 123 | |
| 124 | if (cpu_dai->dma_data) { |
| 125 | kfree(cpu_dai->dma_data); |
| 126 | cpu_dai->dma_data = NULL; |
| 127 | } |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 128 | return ret; |
| 129 | } |
| 130 | |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 131 | static void pxa_ssp_shutdown(struct snd_pcm_substream *substream, |
| 132 | struct snd_soc_dai *dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 133 | { |
| 134 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 135 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; |
| 136 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 137 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 138 | |
| 139 | if (!cpu_dai->active) { |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 140 | ssp_disable(ssp); |
| 141 | clk_disable(ssp->clk); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 142 | } |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 143 | |
| 144 | if (cpu_dai->dma_data) { |
| 145 | kfree(cpu_dai->dma_data); |
| 146 | cpu_dai->dma_data = NULL; |
| 147 | } |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | #ifdef CONFIG_PM |
| 151 | |
Mark Brown | dc7d7b8 | 2008-12-03 18:21:52 +0000 | [diff] [blame] | 152 | static int pxa_ssp_suspend(struct snd_soc_dai *cpu_dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 153 | { |
| 154 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 155 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 156 | |
| 157 | if (!cpu_dai->active) |
Russell King | 988addf | 2010-03-08 20:21:04 +0000 | [diff] [blame] | 158 | clk_enable(ssp->clk); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 159 | |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 160 | priv->cr0 = __raw_readl(ssp->mmio_base + SSCR0); |
| 161 | priv->cr1 = __raw_readl(ssp->mmio_base + SSCR1); |
| 162 | priv->to = __raw_readl(ssp->mmio_base + SSTO); |
| 163 | priv->psp = __raw_readl(ssp->mmio_base + SSPSP); |
| 164 | |
| 165 | ssp_disable(ssp); |
| 166 | clk_disable(ssp->clk); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 167 | return 0; |
| 168 | } |
| 169 | |
Mark Brown | dc7d7b8 | 2008-12-03 18:21:52 +0000 | [diff] [blame] | 170 | static int pxa_ssp_resume(struct snd_soc_dai *cpu_dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 171 | { |
| 172 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 173 | struct ssp_device *ssp = priv->ssp; |
| 174 | uint32_t sssr = SSSR_ROR | SSSR_TUR | SSSR_BCE; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 175 | |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 176 | clk_enable(ssp->clk); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 177 | |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 178 | __raw_writel(sssr, ssp->mmio_base + SSSR); |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 179 | __raw_writel(priv->cr0 & ~SSCR0_SSE, ssp->mmio_base + SSCR0); |
| 180 | __raw_writel(priv->cr1, ssp->mmio_base + SSCR1); |
| 181 | __raw_writel(priv->to, ssp->mmio_base + SSTO); |
| 182 | __raw_writel(priv->psp, ssp->mmio_base + SSPSP); |
Daniel Mack | 026384d | 2010-02-02 18:45:27 +0800 | [diff] [blame] | 183 | |
| 184 | if (cpu_dai->active) |
Russell King | 988addf | 2010-03-08 20:21:04 +0000 | [diff] [blame] | 185 | ssp_enable(ssp); |
Daniel Mack | 026384d | 2010-02-02 18:45:27 +0800 | [diff] [blame] | 186 | else |
Russell King | 988addf | 2010-03-08 20:21:04 +0000 | [diff] [blame] | 187 | clk_disable(ssp->clk); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 188 | |
| 189 | return 0; |
| 190 | } |
| 191 | |
| 192 | #else |
| 193 | #define pxa_ssp_suspend NULL |
| 194 | #define pxa_ssp_resume NULL |
| 195 | #endif |
| 196 | |
| 197 | /** |
| 198 | * ssp_set_clkdiv - set SSP clock divider |
| 199 | * @div: serial clock rate divider |
| 200 | */ |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 201 | static void ssp_set_scr(struct ssp_device *ssp, u32 div) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 202 | { |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 203 | u32 sscr0 = ssp_read_reg(ssp, SSCR0); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 204 | |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 205 | if (cpu_is_pxa25x() && ssp->type == PXA25x_SSP) { |
| 206 | sscr0 &= ~0x0000ff00; |
| 207 | sscr0 |= ((div - 2)/2) << 8; /* 2..512 */ |
| 208 | } else { |
| 209 | sscr0 &= ~0x000fff00; |
| 210 | sscr0 |= (div - 1) << 8; /* 1..4096 */ |
| 211 | } |
| 212 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 213 | } |
| 214 | |
| 215 | /** |
| 216 | * ssp_get_clkdiv - get SSP clock divider |
| 217 | */ |
| 218 | static u32 ssp_get_scr(struct ssp_device *ssp) |
| 219 | { |
| 220 | u32 sscr0 = ssp_read_reg(ssp, SSCR0); |
| 221 | u32 div; |
| 222 | |
| 223 | if (cpu_is_pxa25x() && ssp->type == PXA25x_SSP) |
| 224 | div = ((sscr0 >> 8) & 0xff) * 2 + 2; |
| 225 | else |
| 226 | div = ((sscr0 >> 8) & 0xfff) + 1; |
| 227 | return div; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 228 | } |
| 229 | |
| 230 | /* |
| 231 | * Set the SSP ports SYSCLK. |
| 232 | */ |
| 233 | static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai, |
| 234 | int clk_id, unsigned int freq, int dir) |
| 235 | { |
| 236 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 237 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 238 | int val; |
| 239 | |
| 240 | u32 sscr0 = ssp_read_reg(ssp, SSCR0) & |
Daniel Mack | 20a41ea | 2009-03-04 21:16:57 +0100 | [diff] [blame] | 241 | ~(SSCR0_ECS | SSCR0_NCS | SSCR0_MOD | SSCR0_ACS); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 242 | |
| 243 | dev_dbg(&ssp->pdev->dev, |
Roel Kluin | 449bd54 | 2009-05-27 17:08:39 -0700 | [diff] [blame] | 244 | "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] | 245 | cpu_dai->id, clk_id, freq); |
| 246 | |
| 247 | switch (clk_id) { |
| 248 | case PXA_SSP_CLK_NET_PLL: |
| 249 | sscr0 |= SSCR0_MOD; |
| 250 | break; |
| 251 | case PXA_SSP_CLK_PLL: |
| 252 | /* Internal PLL is fixed */ |
| 253 | if (cpu_is_pxa25x()) |
| 254 | priv->sysclk = 1843200; |
| 255 | else |
| 256 | priv->sysclk = 13000000; |
| 257 | break; |
| 258 | case PXA_SSP_CLK_EXT: |
| 259 | priv->sysclk = freq; |
| 260 | sscr0 |= SSCR0_ECS; |
| 261 | break; |
| 262 | case PXA_SSP_CLK_NET: |
| 263 | priv->sysclk = freq; |
| 264 | sscr0 |= SSCR0_NCS | SSCR0_MOD; |
| 265 | break; |
| 266 | case PXA_SSP_CLK_AUDIO: |
| 267 | priv->sysclk = 0; |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 268 | ssp_set_scr(ssp, 1); |
Daniel Mack | 20a41ea | 2009-03-04 21:16:57 +0100 | [diff] [blame] | 269 | sscr0 |= SSCR0_ACS; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 270 | break; |
| 271 | default: |
| 272 | return -ENODEV; |
| 273 | } |
| 274 | |
| 275 | /* The SSP clock must be disabled when changing SSP clock mode |
| 276 | * on PXA2xx. On PXA3xx it must be enabled when doing so. */ |
| 277 | if (!cpu_is_pxa3xx()) |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 278 | clk_disable(ssp->clk); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 279 | val = ssp_read_reg(ssp, SSCR0) | sscr0; |
| 280 | ssp_write_reg(ssp, SSCR0, val); |
| 281 | if (!cpu_is_pxa3xx()) |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 282 | clk_enable(ssp->clk); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 283 | |
| 284 | return 0; |
| 285 | } |
| 286 | |
| 287 | /* |
| 288 | * Set the SSP clock dividers. |
| 289 | */ |
| 290 | static int pxa_ssp_set_dai_clkdiv(struct snd_soc_dai *cpu_dai, |
| 291 | int div_id, int div) |
| 292 | { |
| 293 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 294 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 295 | int val; |
| 296 | |
| 297 | switch (div_id) { |
| 298 | case PXA_SSP_AUDIO_DIV_ACDS: |
| 299 | val = (ssp_read_reg(ssp, SSACD) & ~0x7) | SSACD_ACDS(div); |
| 300 | ssp_write_reg(ssp, SSACD, val); |
| 301 | break; |
| 302 | case PXA_SSP_AUDIO_DIV_SCDB: |
| 303 | val = ssp_read_reg(ssp, SSACD); |
| 304 | val &= ~SSACD_SCDB; |
| 305 | #if defined(CONFIG_PXA3xx) |
| 306 | if (cpu_is_pxa3xx()) |
| 307 | val &= ~SSACD_SCDX8; |
| 308 | #endif |
| 309 | switch (div) { |
| 310 | case PXA_SSP_CLK_SCDB_1: |
| 311 | val |= SSACD_SCDB; |
| 312 | break; |
| 313 | case PXA_SSP_CLK_SCDB_4: |
| 314 | break; |
| 315 | #if defined(CONFIG_PXA3xx) |
| 316 | case PXA_SSP_CLK_SCDB_8: |
| 317 | if (cpu_is_pxa3xx()) |
| 318 | val |= SSACD_SCDX8; |
| 319 | else |
| 320 | return -EINVAL; |
| 321 | break; |
| 322 | #endif |
| 323 | default: |
| 324 | return -EINVAL; |
| 325 | } |
| 326 | ssp_write_reg(ssp, SSACD, val); |
| 327 | break; |
| 328 | case PXA_SSP_DIV_SCR: |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 329 | ssp_set_scr(ssp, div); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 330 | break; |
| 331 | default: |
| 332 | return -ENODEV; |
| 333 | } |
| 334 | |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | /* |
| 339 | * Configure the PLL frequency pxa27x and (afaik - pxa320 only) |
| 340 | */ |
Mark Brown | 8548803 | 2009-09-05 18:52:16 +0100 | [diff] [blame] | 341 | static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai, int pll_id, |
| 342 | int source, unsigned int freq_in, unsigned int freq_out) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 343 | { |
| 344 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 345 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 346 | u32 ssacd = ssp_read_reg(ssp, SSACD) & ~0x70; |
| 347 | |
| 348 | #if defined(CONFIG_PXA3xx) |
| 349 | if (cpu_is_pxa3xx()) |
| 350 | ssp_write_reg(ssp, SSACDD, 0); |
| 351 | #endif |
| 352 | |
| 353 | switch (freq_out) { |
| 354 | case 5622000: |
| 355 | break; |
| 356 | case 11345000: |
| 357 | ssacd |= (0x1 << 4); |
| 358 | break; |
| 359 | case 12235000: |
| 360 | ssacd |= (0x2 << 4); |
| 361 | break; |
| 362 | case 14857000: |
| 363 | ssacd |= (0x3 << 4); |
| 364 | break; |
| 365 | case 32842000: |
| 366 | ssacd |= (0x4 << 4); |
| 367 | break; |
| 368 | case 48000000: |
| 369 | ssacd |= (0x5 << 4); |
| 370 | break; |
| 371 | case 0: |
| 372 | /* Disable */ |
| 373 | break; |
| 374 | |
| 375 | default: |
| 376 | #ifdef CONFIG_PXA3xx |
| 377 | /* PXA3xx has a clock ditherer which can be used to generate |
| 378 | * a wider range of frequencies - calculate a value for it. |
| 379 | */ |
| 380 | if (cpu_is_pxa3xx()) { |
| 381 | u32 val; |
| 382 | u64 tmp = 19968; |
| 383 | tmp *= 1000000; |
| 384 | do_div(tmp, freq_out); |
| 385 | val = tmp; |
| 386 | |
Joe Perches | a419aef | 2009-08-18 11:18:35 -0700 | [diff] [blame] | 387 | val = (val << 16) | 64; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 388 | ssp_write_reg(ssp, SSACDD, val); |
| 389 | |
| 390 | ssacd |= (0x6 << 4); |
| 391 | |
| 392 | dev_dbg(&ssp->pdev->dev, |
Roel Kluin | 449bd54 | 2009-05-27 17:08:39 -0700 | [diff] [blame] | 393 | "Using SSACDD %x to supply %uHz\n", |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 394 | val, freq_out); |
| 395 | break; |
| 396 | } |
| 397 | #endif |
| 398 | |
| 399 | return -EINVAL; |
| 400 | } |
| 401 | |
| 402 | ssp_write_reg(ssp, SSACD, ssacd); |
| 403 | |
| 404 | return 0; |
| 405 | } |
| 406 | |
| 407 | /* |
| 408 | * Set the active slots in TDM/Network mode |
| 409 | */ |
| 410 | 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] | 411 | 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] | 412 | { |
| 413 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 414 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 415 | u32 sscr0; |
| 416 | |
Daniel Ribeiro | a5479e3 | 2009-06-15 21:44:31 -0300 | [diff] [blame] | 417 | sscr0 = ssp_read_reg(ssp, SSCR0); |
| 418 | sscr0 &= ~(SSCR0_MOD | SSCR0_SlotsPerFrm(8) | SSCR0_EDSS | SSCR0_DSS); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 419 | |
Daniel Ribeiro | a5479e3 | 2009-06-15 21:44:31 -0300 | [diff] [blame] | 420 | /* set slot width */ |
| 421 | if (slot_width > 16) |
| 422 | sscr0 |= SSCR0_EDSS | SSCR0_DataSize(slot_width - 16); |
| 423 | else |
| 424 | sscr0 |= SSCR0_DataSize(slot_width); |
| 425 | |
| 426 | if (slots > 1) { |
| 427 | /* enable network mode */ |
| 428 | sscr0 |= SSCR0_MOD; |
| 429 | |
| 430 | /* set number of active slots */ |
| 431 | sscr0 |= SSCR0_SlotsPerFrm(slots); |
| 432 | |
| 433 | /* set active slot mask */ |
| 434 | ssp_write_reg(ssp, SSTSA, tx_mask); |
| 435 | ssp_write_reg(ssp, SSRSA, rx_mask); |
| 436 | } |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 437 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 438 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 439 | return 0; |
| 440 | } |
| 441 | |
| 442 | /* |
| 443 | * Tristate the SSP DAI lines |
| 444 | */ |
| 445 | static int pxa_ssp_set_dai_tristate(struct snd_soc_dai *cpu_dai, |
| 446 | int tristate) |
| 447 | { |
| 448 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 449 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 450 | u32 sscr1; |
| 451 | |
| 452 | sscr1 = ssp_read_reg(ssp, SSCR1); |
| 453 | if (tristate) |
| 454 | sscr1 &= ~SSCR1_TTE; |
| 455 | else |
| 456 | sscr1 |= SSCR1_TTE; |
| 457 | ssp_write_reg(ssp, SSCR1, sscr1); |
| 458 | |
| 459 | return 0; |
| 460 | } |
| 461 | |
| 462 | /* |
| 463 | * Set up the SSP DAI format. |
| 464 | * The SSP Port must be inactive before calling this function as the |
| 465 | * physical interface format is changed. |
| 466 | */ |
| 467 | static int pxa_ssp_set_dai_fmt(struct snd_soc_dai *cpu_dai, |
| 468 | unsigned int fmt) |
| 469 | { |
| 470 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 471 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 472 | u32 sscr0; |
| 473 | u32 sscr1; |
| 474 | u32 sspsp; |
| 475 | |
Daniel Mack | cbf1146 | 2009-03-10 16:41:00 +0100 | [diff] [blame] | 476 | /* check if we need to change anything at all */ |
| 477 | if (priv->dai_fmt == fmt) |
| 478 | return 0; |
| 479 | |
| 480 | /* we can only change the settings if the port is not in use */ |
| 481 | if (ssp_read_reg(ssp, SSCR0) & SSCR0_SSE) { |
| 482 | dev_err(&ssp->pdev->dev, |
| 483 | "can't change hardware dai format: stream is in use"); |
| 484 | return -EINVAL; |
| 485 | } |
| 486 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 487 | /* reset port settings */ |
| 488 | sscr0 = ssp_read_reg(ssp, SSCR0) & |
Daniel Mack | 20a41ea | 2009-03-04 21:16:57 +0100 | [diff] [blame] | 489 | (SSCR0_ECS | SSCR0_NCS | SSCR0_MOD | SSCR0_ACS); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 490 | sscr1 = SSCR1_RxTresh(8) | SSCR1_TxTresh(7); |
| 491 | sspsp = 0; |
| 492 | |
| 493 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 494 | case SND_SOC_DAIFMT_CBM_CFM: |
| 495 | sscr1 |= SSCR1_SCLKDIR | SSCR1_SFRMDIR; |
| 496 | break; |
| 497 | case SND_SOC_DAIFMT_CBM_CFS: |
| 498 | sscr1 |= SSCR1_SCLKDIR; |
| 499 | break; |
| 500 | case SND_SOC_DAIFMT_CBS_CFS: |
| 501 | break; |
| 502 | default: |
| 503 | return -EINVAL; |
| 504 | } |
| 505 | |
Daniel Ribeiro | fa44c07 | 2009-06-10 15:23:24 -0300 | [diff] [blame] | 506 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 507 | case SND_SOC_DAIFMT_NB_NF: |
| 508 | sspsp |= SSPSP_SFRMP; |
| 509 | break; |
| 510 | case SND_SOC_DAIFMT_NB_IF: |
| 511 | break; |
| 512 | case SND_SOC_DAIFMT_IB_IF: |
| 513 | sspsp |= SSPSP_SCMODE(2); |
| 514 | break; |
| 515 | case SND_SOC_DAIFMT_IB_NF: |
| 516 | sspsp |= SSPSP_SCMODE(2) | SSPSP_SFRMP; |
| 517 | break; |
| 518 | default: |
| 519 | return -EINVAL; |
| 520 | } |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 521 | |
| 522 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 523 | case SND_SOC_DAIFMT_I2S: |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 524 | sscr0 |= SSCR0_PSP; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 525 | sscr1 |= SSCR1_RWOT | SSCR1_TRAIL; |
Mark Brown | 0ce36c5 | 2009-03-13 14:26:08 +0000 | [diff] [blame] | 526 | /* See hw_params() */ |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 527 | break; |
| 528 | |
| 529 | case SND_SOC_DAIFMT_DSP_A: |
| 530 | sspsp |= SSPSP_FSRT; |
| 531 | case SND_SOC_DAIFMT_DSP_B: |
| 532 | sscr0 |= SSCR0_MOD | SSCR0_PSP; |
| 533 | sscr1 |= SSCR1_TRAIL | SSCR1_RWOT; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 534 | break; |
| 535 | |
| 536 | default: |
| 537 | return -EINVAL; |
| 538 | } |
| 539 | |
| 540 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 541 | ssp_write_reg(ssp, SSCR1, sscr1); |
| 542 | ssp_write_reg(ssp, SSPSP, sspsp); |
| 543 | |
| 544 | dump_registers(ssp); |
| 545 | |
| 546 | /* Since we are configuring the timings for the format by hand |
| 547 | * we have to defer some things until hw_params() where we |
| 548 | * know parameters like the sample size. |
| 549 | */ |
| 550 | priv->dai_fmt = fmt; |
| 551 | |
| 552 | return 0; |
| 553 | } |
| 554 | |
| 555 | /* |
| 556 | * Set the SSP audio DMA parameters and sample size. |
| 557 | * Can be called multiple times by oss emulation. |
| 558 | */ |
| 559 | static int pxa_ssp_hw_params(struct snd_pcm_substream *substream, |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 560 | struct snd_pcm_hw_params *params, |
| 561 | struct snd_soc_dai *dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 562 | { |
| 563 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 564 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; |
| 565 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 566 | struct ssp_device *ssp = priv->ssp; |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 567 | int chn = params_channels(params); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 568 | u32 sscr0; |
| 569 | u32 sspsp; |
| 570 | int width = snd_pcm_format_physical_width(params_format(params)); |
Philipp Zabel | 9242906 | 2009-03-19 09:32:01 +0100 | [diff] [blame] | 571 | int ttsa = ssp_read_reg(ssp, SSTSA) & 0xf; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 572 | |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 573 | /* generate correct DMA params */ |
| 574 | if (cpu_dai->dma_data) |
| 575 | kfree(cpu_dai->dma_data); |
| 576 | |
Philipp Zabel | 9242906 | 2009-03-19 09:32:01 +0100 | [diff] [blame] | 577 | /* Network mode with one active slot (ttsa == 1) can be used |
| 578 | * to force 16-bit frame width on the wire (for S16_LE), even |
| 579 | * with two channels. Use 16-bit DMA transfers for this case. |
| 580 | */ |
Eric Miao | 2d7e71f | 2009-04-23 17:05:38 +0800 | [diff] [blame] | 581 | cpu_dai->dma_data = ssp_get_dma_params(ssp, |
| 582 | ((chn == 2) && (ttsa != 1)) || (width == 32), |
| 583 | substream->stream == SNDRV_PCM_STREAM_PLAYBACK); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 584 | |
| 585 | /* we can only change the settings if the port is not in use */ |
| 586 | if (ssp_read_reg(ssp, SSCR0) & SSCR0_SSE) |
| 587 | return 0; |
| 588 | |
| 589 | /* clear selected SSP bits */ |
| 590 | sscr0 = ssp_read_reg(ssp, SSCR0) & ~(SSCR0_DSS | SSCR0_EDSS); |
| 591 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 592 | |
| 593 | /* bit size */ |
| 594 | sscr0 = ssp_read_reg(ssp, SSCR0); |
| 595 | switch (params_format(params)) { |
| 596 | case SNDRV_PCM_FORMAT_S16_LE: |
| 597 | #ifdef CONFIG_PXA3xx |
| 598 | if (cpu_is_pxa3xx()) |
| 599 | sscr0 |= SSCR0_FPCKE; |
| 600 | #endif |
| 601 | sscr0 |= SSCR0_DataSize(16); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 602 | break; |
| 603 | case SNDRV_PCM_FORMAT_S24_LE: |
| 604 | sscr0 |= (SSCR0_EDSS | SSCR0_DataSize(8)); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 605 | break; |
| 606 | case SNDRV_PCM_FORMAT_S32_LE: |
| 607 | sscr0 |= (SSCR0_EDSS | SSCR0_DataSize(16)); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 608 | break; |
| 609 | } |
| 610 | ssp_write_reg(ssp, SSCR0, sscr0); |
| 611 | |
| 612 | switch (priv->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 613 | case SND_SOC_DAIFMT_I2S: |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 614 | sspsp = ssp_read_reg(ssp, SSPSP); |
| 615 | |
Philipp Zabel | 1a29728 | 2009-04-17 11:39:38 +0200 | [diff] [blame] | 616 | if ((ssp_get_scr(ssp) == 4) && (width == 16)) { |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 617 | /* This is a special case where the bitclk is 64fs |
| 618 | * and we're not dealing with 2*32 bits of audio |
| 619 | * samples. |
| 620 | * |
| 621 | * The SSP values used for that are all found out by |
| 622 | * trying and failing a lot; some of the registers |
| 623 | * needed for that mode are only available on PXA3xx. |
| 624 | */ |
| 625 | |
| 626 | #ifdef CONFIG_PXA3xx |
| 627 | if (!cpu_is_pxa3xx()) |
| 628 | return -EINVAL; |
| 629 | |
| 630 | sspsp |= SSPSP_SFRMWDTH(width * 2); |
| 631 | sspsp |= SSPSP_SFRMDLY(width * 4); |
| 632 | sspsp |= SSPSP_EDMYSTOP(3); |
| 633 | sspsp |= SSPSP_DMYSTOP(3); |
| 634 | sspsp |= SSPSP_DMYSTRT(1); |
| 635 | #else |
| 636 | return -EINVAL; |
| 637 | #endif |
Mark Brown | 0ce36c5 | 2009-03-13 14:26:08 +0000 | [diff] [blame] | 638 | } else { |
| 639 | /* The frame width is the width the LRCLK is |
| 640 | * asserted for; the delay is expressed in |
| 641 | * half cycle units. We need the extra cycle |
| 642 | * because the data starts clocking out one BCLK |
| 643 | * after LRCLK changes polarity. |
| 644 | */ |
| 645 | sspsp |= SSPSP_SFRMWDTH(width + 1); |
| 646 | sspsp |= SSPSP_SFRMDLY((width + 1) * 2); |
| 647 | sspsp |= SSPSP_DMYSTRT(1); |
| 648 | } |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 649 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 650 | ssp_write_reg(ssp, SSPSP, sspsp); |
| 651 | break; |
| 652 | default: |
| 653 | break; |
| 654 | } |
| 655 | |
Daniel Mack | 72d7466 | 2009-03-12 11:27:49 +0100 | [diff] [blame] | 656 | /* When we use a network mode, we always require TDM slots |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 657 | * - complain loudly and fail if they've not been set up yet. |
| 658 | */ |
Philipp Zabel | 9242906 | 2009-03-19 09:32:01 +0100 | [diff] [blame] | 659 | if ((sscr0 & SSCR0_MOD) && !ttsa) { |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 660 | dev_err(&ssp->pdev->dev, "No TDM timeslot configured\n"); |
| 661 | return -EINVAL; |
| 662 | } |
| 663 | |
| 664 | dump_registers(ssp); |
| 665 | |
| 666 | return 0; |
| 667 | } |
| 668 | |
Mark Brown | dee89c4 | 2008-11-18 22:11:38 +0000 | [diff] [blame] | 669 | static int pxa_ssp_trigger(struct snd_pcm_substream *substream, int cmd, |
| 670 | struct snd_soc_dai *dai) |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 671 | { |
| 672 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 673 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; |
| 674 | int ret = 0; |
| 675 | struct ssp_priv *priv = cpu_dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 676 | struct ssp_device *ssp = priv->ssp; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 677 | int val; |
| 678 | |
| 679 | switch (cmd) { |
| 680 | case SNDRV_PCM_TRIGGER_RESUME: |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 681 | ssp_enable(ssp); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 682 | break; |
| 683 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| 684 | val = ssp_read_reg(ssp, SSCR1); |
| 685 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 686 | val |= SSCR1_TSRE; |
| 687 | else |
| 688 | val |= SSCR1_RSRE; |
| 689 | ssp_write_reg(ssp, SSCR1, val); |
| 690 | val = ssp_read_reg(ssp, SSSR); |
| 691 | ssp_write_reg(ssp, SSSR, val); |
| 692 | break; |
| 693 | case SNDRV_PCM_TRIGGER_START: |
| 694 | val = ssp_read_reg(ssp, SSCR1); |
| 695 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 696 | val |= SSCR1_TSRE; |
| 697 | else |
| 698 | val |= SSCR1_RSRE; |
| 699 | ssp_write_reg(ssp, SSCR1, val); |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 700 | ssp_enable(ssp); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 701 | break; |
| 702 | case SNDRV_PCM_TRIGGER_STOP: |
| 703 | val = ssp_read_reg(ssp, SSCR1); |
| 704 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 705 | val &= ~SSCR1_TSRE; |
| 706 | else |
| 707 | val &= ~SSCR1_RSRE; |
| 708 | ssp_write_reg(ssp, SSCR1, val); |
| 709 | break; |
| 710 | case SNDRV_PCM_TRIGGER_SUSPEND: |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 711 | ssp_disable(ssp); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 712 | break; |
| 713 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| 714 | val = ssp_read_reg(ssp, SSCR1); |
| 715 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 716 | val &= ~SSCR1_TSRE; |
| 717 | else |
| 718 | val &= ~SSCR1_RSRE; |
| 719 | ssp_write_reg(ssp, SSCR1, val); |
| 720 | break; |
| 721 | |
| 722 | default: |
| 723 | ret = -EINVAL; |
| 724 | } |
| 725 | |
| 726 | dump_registers(ssp); |
| 727 | |
| 728 | return ret; |
| 729 | } |
| 730 | |
| 731 | static int pxa_ssp_probe(struct platform_device *pdev, |
| 732 | struct snd_soc_dai *dai) |
| 733 | { |
| 734 | struct ssp_priv *priv; |
| 735 | int ret; |
| 736 | |
| 737 | priv = kzalloc(sizeof(struct ssp_priv), GFP_KERNEL); |
| 738 | if (!priv) |
| 739 | return -ENOMEM; |
| 740 | |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 741 | priv->ssp = ssp_request(dai->id + 1, "SoC audio"); |
| 742 | if (priv->ssp == NULL) { |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 743 | ret = -ENODEV; |
| 744 | goto err_priv; |
| 745 | } |
| 746 | |
Daniel Mack | a5735b7 | 2009-04-15 20:24:45 +0200 | [diff] [blame] | 747 | priv->dai_fmt = (unsigned int) -1; |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 748 | dai->private_data = priv; |
| 749 | |
| 750 | return 0; |
| 751 | |
| 752 | err_priv: |
| 753 | kfree(priv); |
| 754 | return ret; |
| 755 | } |
| 756 | |
| 757 | static void pxa_ssp_remove(struct platform_device *pdev, |
| 758 | struct snd_soc_dai *dai) |
| 759 | { |
| 760 | struct ssp_priv *priv = dai->private_data; |
Eric Miao | f9efc9d | 2010-02-09 19:46:01 +0800 | [diff] [blame] | 761 | ssp_free(priv->ssp); |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | #define PXA_SSP_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
| 765 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \ |
| 766 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \ |
| 767 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) |
| 768 | |
| 769 | #define PXA_SSP_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ |
| 770 | SNDRV_PCM_FMTBIT_S24_LE | \ |
| 771 | SNDRV_PCM_FMTBIT_S32_LE) |
| 772 | |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 773 | static struct snd_soc_dai_ops pxa_ssp_dai_ops = { |
| 774 | .startup = pxa_ssp_startup, |
| 775 | .shutdown = pxa_ssp_shutdown, |
| 776 | .trigger = pxa_ssp_trigger, |
| 777 | .hw_params = pxa_ssp_hw_params, |
| 778 | .set_sysclk = pxa_ssp_set_dai_sysclk, |
| 779 | .set_clkdiv = pxa_ssp_set_dai_clkdiv, |
| 780 | .set_pll = pxa_ssp_set_dai_pll, |
| 781 | .set_fmt = pxa_ssp_set_dai_fmt, |
| 782 | .set_tdm_slot = pxa_ssp_set_dai_tdm_slot, |
| 783 | .set_tristate = pxa_ssp_set_dai_tristate, |
| 784 | }; |
| 785 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 786 | struct snd_soc_dai pxa_ssp_dai[] = { |
| 787 | { |
| 788 | .name = "pxa2xx-ssp1", |
| 789 | .id = 0, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 790 | .probe = pxa_ssp_probe, |
| 791 | .remove = pxa_ssp_remove, |
| 792 | .suspend = pxa_ssp_suspend, |
| 793 | .resume = pxa_ssp_resume, |
| 794 | .playback = { |
| 795 | .channels_min = 1, |
Graeme Gregory | f34762b | 2009-09-25 13:30:26 +0100 | [diff] [blame] | 796 | .channels_max = 8, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 797 | .rates = PXA_SSP_RATES, |
| 798 | .formats = PXA_SSP_FORMATS, |
| 799 | }, |
| 800 | .capture = { |
| 801 | .channels_min = 1, |
Graeme Gregory | f34762b | 2009-09-25 13:30:26 +0100 | [diff] [blame] | 802 | .channels_max = 8, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 803 | .rates = PXA_SSP_RATES, |
| 804 | .formats = PXA_SSP_FORMATS, |
| 805 | }, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 806 | .ops = &pxa_ssp_dai_ops, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 807 | }, |
| 808 | { .name = "pxa2xx-ssp2", |
| 809 | .id = 1, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 810 | .probe = pxa_ssp_probe, |
| 811 | .remove = pxa_ssp_remove, |
| 812 | .suspend = pxa_ssp_suspend, |
| 813 | .resume = pxa_ssp_resume, |
| 814 | .playback = { |
| 815 | .channels_min = 1, |
Graeme Gregory | f34762b | 2009-09-25 13:30:26 +0100 | [diff] [blame] | 816 | .channels_max = 8, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 817 | .rates = PXA_SSP_RATES, |
| 818 | .formats = PXA_SSP_FORMATS, |
| 819 | }, |
| 820 | .capture = { |
| 821 | .channels_min = 1, |
Graeme Gregory | f34762b | 2009-09-25 13:30:26 +0100 | [diff] [blame] | 822 | .channels_max = 8, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 823 | .rates = PXA_SSP_RATES, |
| 824 | .formats = PXA_SSP_FORMATS, |
| 825 | }, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 826 | .ops = &pxa_ssp_dai_ops, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 827 | }, |
| 828 | { |
| 829 | .name = "pxa2xx-ssp3", |
| 830 | .id = 2, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 831 | .probe = pxa_ssp_probe, |
| 832 | .remove = pxa_ssp_remove, |
| 833 | .suspend = pxa_ssp_suspend, |
| 834 | .resume = pxa_ssp_resume, |
| 835 | .playback = { |
| 836 | .channels_min = 1, |
Graeme Gregory | f34762b | 2009-09-25 13:30:26 +0100 | [diff] [blame] | 837 | .channels_max = 8, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 838 | .rates = PXA_SSP_RATES, |
| 839 | .formats = PXA_SSP_FORMATS, |
| 840 | }, |
| 841 | .capture = { |
| 842 | .channels_min = 1, |
Graeme Gregory | f34762b | 2009-09-25 13:30:26 +0100 | [diff] [blame] | 843 | .channels_max = 8, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 844 | .rates = PXA_SSP_RATES, |
| 845 | .formats = PXA_SSP_FORMATS, |
| 846 | }, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 847 | .ops = &pxa_ssp_dai_ops, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 848 | }, |
| 849 | { |
| 850 | .name = "pxa2xx-ssp4", |
| 851 | .id = 3, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 852 | .probe = pxa_ssp_probe, |
| 853 | .remove = pxa_ssp_remove, |
| 854 | .suspend = pxa_ssp_suspend, |
| 855 | .resume = pxa_ssp_resume, |
| 856 | .playback = { |
| 857 | .channels_min = 1, |
Graeme Gregory | f34762b | 2009-09-25 13:30:26 +0100 | [diff] [blame] | 858 | .channels_max = 8, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 859 | .rates = PXA_SSP_RATES, |
| 860 | .formats = PXA_SSP_FORMATS, |
| 861 | }, |
| 862 | .capture = { |
| 863 | .channels_min = 1, |
Graeme Gregory | f34762b | 2009-09-25 13:30:26 +0100 | [diff] [blame] | 864 | .channels_max = 8, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 865 | .rates = PXA_SSP_RATES, |
| 866 | .formats = PXA_SSP_FORMATS, |
| 867 | }, |
Eric Miao | 6335d05 | 2009-03-03 09:41:00 +0800 | [diff] [blame] | 868 | .ops = &pxa_ssp_dai_ops, |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 869 | }, |
| 870 | }; |
| 871 | EXPORT_SYMBOL_GPL(pxa_ssp_dai); |
| 872 | |
Takashi Iwai | c9b3a40 | 2008-12-10 07:47:22 +0100 | [diff] [blame] | 873 | static int __init pxa_ssp_init(void) |
Mark Brown | 3f4b783 | 2008-12-03 19:26:35 +0000 | [diff] [blame] | 874 | { |
| 875 | return snd_soc_register_dais(pxa_ssp_dai, ARRAY_SIZE(pxa_ssp_dai)); |
| 876 | } |
| 877 | module_init(pxa_ssp_init); |
| 878 | |
| 879 | static void __exit pxa_ssp_exit(void) |
| 880 | { |
| 881 | snd_soc_unregister_dais(pxa_ssp_dai, ARRAY_SIZE(pxa_ssp_dai)); |
| 882 | } |
| 883 | module_exit(pxa_ssp_exit); |
| 884 | |
Mark Brown | 1b340bd | 2008-07-30 19:12:04 +0100 | [diff] [blame] | 885 | /* Module information */ |
| 886 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
| 887 | MODULE_DESCRIPTION("PXA SSP/PCM SoC Interface"); |
| 888 | MODULE_LICENSE("GPL"); |