From: Liam Girdwood liam@localhost.localdomain
Signed-off-by: Philipp Zabel philipp.zabel@gmail.com Signed-off-by: Nicola Perrino nicola.perrino@atlab.it Signed-off-by: Liam Girdwood lg@opensource.wolfsonmicro.com --- sound/soc/pxa/Kconfig | 4 + sound/soc/pxa/Makefile | 2 + sound/soc/pxa/pxa2xx-ssp.c | 666 ++++++++++++++++++++++++++++++++++++++++++++ sound/soc/pxa/pxa2xx-ssp.h | 43 +++ 4 files changed, 715 insertions(+), 0 deletions(-) create mode 100644 sound/soc/pxa/pxa2xx-ssp.c create mode 100644 sound/soc/pxa/pxa2xx-ssp.h
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig index a83e229..ca825e6 100644 --- a/sound/soc/pxa/Kconfig +++ b/sound/soc/pxa/Kconfig @@ -18,6 +18,10 @@ config SND_PXA2XX_SOC_AC97 config SND_PXA2XX_SOC_I2S tristate
+config SND_PXA2XX_SOC_SSP + tristate + select PXA_SSP + config SND_PXA2XX_SOC_CORGI tristate "SoC Audio support for Sharp Zaurus SL-C7x0" depends on SND_PXA2XX_SOC && PXA_SHARP_C7xx diff --git a/sound/soc/pxa/Makefile b/sound/soc/pxa/Makefile index 78e0d6b..c631651 100644 --- a/sound/soc/pxa/Makefile +++ b/sound/soc/pxa/Makefile @@ -2,10 +2,12 @@ snd-soc-pxa2xx-objs := pxa2xx-pcm.o snd-soc-pxa2xx-ac97-objs := pxa2xx-ac97.o snd-soc-pxa2xx-i2s-objs := pxa2xx-i2s.o +snd-soc-pxa2xx-ssp-objs := pxa2xx-ssp.o
obj-$(CONFIG_SND_PXA2XX_SOC) += snd-soc-pxa2xx.o obj-$(CONFIG_SND_PXA2XX_SOC_AC97) += snd-soc-pxa2xx-ac97.o obj-$(CONFIG_SND_PXA2XX_SOC_I2S) += snd-soc-pxa2xx-i2s.o +obj-$(CONFIG_SND_PXA2XX_SOC_SSP) += snd-soc-pxa2xx-ssp.o
# PXA Machine Support snd-soc-corgi-objs := corgi.o diff --git a/sound/soc/pxa/pxa2xx-ssp.c b/sound/soc/pxa/pxa2xx-ssp.c new file mode 100644 index 0000000..0d483fe --- /dev/null +++ b/sound/soc/pxa/pxa2xx-ssp.c @@ -0,0 +1,666 @@ +/* + * pxa2xx-ssp.c -- ALSA Soc Audio Layer + * + * Copyright 2005 Wolfson Microelectronics PLC. + * Author: Liam Girdwood + * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Revision history + * 12th Aug 2005 Initial version. + * + * TODO: + * o Test network mode for > 16bit sample size + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/initval.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <asm/hardware.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/audio.h> +#include <asm/arch/ssp.h> + +#include "pxa2xx-pcm.h" +#include "pxa2xx-ssp.h" + +#define PXA_SSP_DEBUG 0 + +#if PXA_SSP_DEBUG +#define dbg(format, arg...) \ + printk(KERN_DEBUG format "\n" , ## arg) +#else +#define dbg(format, arg...) do {} while (0) +#endif + +/* + * SSP audio private data + */ +struct ssp_priv { + unsigned int sysclk; +}; + +static struct ssp_priv ssp_clk[3]; +static struct ssp_dev ssp[3]; +#ifdef CONFIG_PM +static struct ssp_state ssp_state[3]; +#endif + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp1_pcm_mono_out = { + .name = "SSP1 PCM Mono out", + .dev_addr = __PREG(SSDR_P1), + .drcmr = &DRCMRTXSSDR, + .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | + DCMD_BURST16 | DCMD_WIDTH2, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp1_pcm_mono_in = { + .name = "SSP1 PCM Mono in", + .dev_addr = __PREG(SSDR_P1), + .drcmr = &DRCMRRXSSDR, + .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | + DCMD_BURST16 | DCMD_WIDTH2, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp1_pcm_stereo_out = { + .name = "SSP1 PCM Stereo out", + .dev_addr = __PREG(SSDR_P1), + .drcmr = &DRCMRTXSSDR, + .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | + DCMD_BURST16 | DCMD_WIDTH4, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp1_pcm_stereo_in = { + .name = "SSP1 PCM Stereo in", + .dev_addr = __PREG(SSDR_P1), + .drcmr = &DRCMRRXSSDR, + .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | + DCMD_BURST16 | DCMD_WIDTH4, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp2_pcm_mono_out = { + .name = "SSP2 PCM Mono out", + .dev_addr = __PREG(SSDR_P2), + .drcmr = &DRCMRTXSS2DR, + .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | + DCMD_BURST16 | DCMD_WIDTH2, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp2_pcm_mono_in = { + .name = "SSP2 PCM Mono in", + .dev_addr = __PREG(SSDR_P2), + .drcmr = &DRCMRRXSS2DR, + .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | + DCMD_BURST16 | DCMD_WIDTH2, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp2_pcm_stereo_out = { + .name = "SSP2 PCM Stereo out", + .dev_addr = __PREG(SSDR_P2), + .drcmr = &DRCMRTXSS2DR, + .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | + DCMD_BURST16 | DCMD_WIDTH4, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp2_pcm_stereo_in = { + .name = "SSP2 PCM Stereo in", + .dev_addr = __PREG(SSDR_P2), + .drcmr = &DRCMRRXSS2DR, + .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | + DCMD_BURST16 | DCMD_WIDTH4, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp3_pcm_mono_out = { + .name = "SSP3 PCM Mono out", + .dev_addr = __PREG(SSDR_P3), + .drcmr = &DRCMRTXSS3DR, + .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | + DCMD_BURST16 | DCMD_WIDTH2, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp3_pcm_mono_in = { + .name = "SSP3 PCM Mono in", + .dev_addr = __PREG(SSDR_P3), + .drcmr = &DRCMRRXSS3DR, + .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | + DCMD_BURST16 | DCMD_WIDTH2, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp3_pcm_stereo_out = { + .name = "SSP3 PCM Stereo out", + .dev_addr = __PREG(SSDR_P3), + .drcmr = &DRCMRTXSS3DR, + .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | + DCMD_BURST16 | DCMD_WIDTH4, +}; + +static struct pxa2xx_pcm_dma_params pxa2xx_ssp3_pcm_stereo_in = { + .name = "SSP3 PCM Stereo in", + .dev_addr = __PREG(SSDR_P3), + .drcmr = &DRCMRRXSS3DR, + .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | + DCMD_BURST16 | DCMD_WIDTH4, +}; + +static struct pxa2xx_pcm_dma_params *ssp_dma_params[3][4] = { + {&pxa2xx_ssp1_pcm_mono_out, &pxa2xx_ssp1_pcm_mono_in, + &pxa2xx_ssp1_pcm_stereo_out,&pxa2xx_ssp1_pcm_stereo_in,}, + {&pxa2xx_ssp2_pcm_mono_out, &pxa2xx_ssp2_pcm_mono_in, + &pxa2xx_ssp2_pcm_stereo_out, &pxa2xx_ssp2_pcm_stereo_in,}, + {&pxa2xx_ssp3_pcm_mono_out, &pxa2xx_ssp3_pcm_mono_in, + &pxa2xx_ssp3_pcm_stereo_out,&pxa2xx_ssp3_pcm_stereo_in,}, +}; + +static int pxa2xx_ssp_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; + int ret = 0; + + if (!rtd->dai->cpu_dai->active) { + ret = ssp_init (&ssp[cpu_dai->id], cpu_dai->id + 1, + SSP_NO_IRQ); + if (ret < 0) + return ret; + ssp_disable(&ssp[cpu_dai->id]); + } + return ret; +} + +static void pxa2xx_ssp_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; + + if (!cpu_dai->active) { + ssp_disable(&ssp[cpu_dai->id]); + ssp_exit(&ssp[cpu_dai->id]); + } +} + +#if defined (CONFIG_PXA27x) +static int cken[3] = {CKEN23_SSP1, CKEN3_SSP2, CKEN4_SSP3}; +#else +static int cken[3] = {CKEN3_SSP, CKEN9_NSSP, CKEN10_ASSP}; +#endif + +#ifdef CONFIG_PM + +static int pxa2xx_ssp_suspend(struct platform_device *pdev, + struct snd_soc_cpu_dai *dai) +{ + if (!dai->active) + return 0; + + ssp_save_state(&ssp[dai->id], &ssp_state[dai->id]); + pxa_set_cken(cken[dai->id], 0); + return 0; +} + +static int pxa2xx_ssp_resume(struct platform_device *pdev, + struct snd_soc_cpu_dai *dai) +{ + if (!dai->active) + return 0; + + pxa_set_cken(cken[dai->id], 1); + ssp_restore_state(&ssp[dai->id], &ssp_state[dai->id]); + ssp_enable(&ssp[dai->id]); + + return 0; +} + +#else +#define pxa2xx_ssp_suspend NULL +#define pxa2xx_ssp_resume NULL +#endif + +/* + * Set the SSP ports SYSCLK. + */ +static int pxa2xx_ssp_set_dai_sysclk(struct snd_soc_cpu_dai *cpu_dai, + int clk_id, unsigned int freq, int dir) +{ + int port = cpu_dai->id + 1; + u32 sscr0 = SSCR0_P(port) & + ~(SSCR0_ECS | SSCR0_NCS | SSCR0_MOD | SSCR0_ADC); + + dbg("pxa2xx_ssp_set_dai_sysclk id: %d, clk_id %d, freq %d", + cpu_dai->id, clk_id, freq); + + switch (clk_id) { + case PXA2XX_SSP_CLK_NET_PLL: + sscr0 |= SSCR0_MOD; + case PXA2XX_SSP_CLK_PLL: + /* Internal PLL is fixed on pxa25x and pxa27x */ +#ifdef CONFIG_PXA27x + ssp_clk[cpu_dai->id].sysclk = 13000000; +#else + ssp_clk[cpu_dai->id].sysclk = 1843200; +#endif + break; + case PXA2XX_SSP_CLK_EXT: + ssp_clk[cpu_dai->id].sysclk = freq; + sscr0 |= SSCR0_ECS; + break; + case PXA2XX_SSP_CLK_NET: + ssp_clk[cpu_dai->id].sysclk = freq; + sscr0 |= SSCR0_NCS | SSCR0_MOD; + break; + case PXA2XX_SSP_CLK_AUDIO: + ssp_clk[cpu_dai->id].sysclk = 0; + SSCR0_P(port) |= SSCR0_SerClkDiv(1); + sscr0 |= SSCR0_ADC; + break; + default: + return -ENODEV; + } + + /* the SSP CKEN clock must be disabled when changing SSP clock mode */ + pxa_set_cken(cken[cpu_dai->id], 0); + SSCR0_P(port) |= sscr0; + pxa_set_cken(cken[cpu_dai->id], 1); + return 0; +} + +/* + * Set the SSP clock dividers. + */ +static int pxa2xx_ssp_set_dai_clkdiv(struct snd_soc_cpu_dai *cpu_dai, + int div_id, int div) +{ + int port = cpu_dai->id + 1; + + switch (div_id) { + case PXA2XX_SSP_AUDIO_DIV_ACDS: + SSACD_P(port) &= ~ 0x7; + SSACD_P(port) |= SSACD_ACDS(div); + break; + case PXA2XX_SSP_AUDIO_DIV_SCDB: + SSACD_P(port) &= ~0x8; + if (div == PXA2XX_SSP_CLK_SCDB_1) + SSACD_P(port) |= SSACD_SCDB; + break; + case PXA2XX_SSP_DIV_SCR: + SSCR0_P(port) &= ~SSCR0_SCR; + SSCR0_P(port) |= SSCR0_SerClkDiv(div); + break; + default: + return -ENODEV; + } + + return 0; +} + +/* + * Configure the PLL frequency pxa27x and (afaik - pxa320 only) + */ +static int pxa2xx_ssp_set_dai_pll(struct snd_soc_cpu_dai *cpu_dai, + int pll_id, unsigned int freq_in, unsigned int freq_out) +{ + int port = cpu_dai->id + 1; + + SSACD_P(port) &= ~0x70; + switch (freq_out) { + case 5622000: + break; + case 11345000: + SSACD_P(port) |= (0x1 << 4); + break; + case 12235000: + SSACD_P(port) |= (0x2 << 4); + break; + case 14857000: + SSACD_P(port) |= (0x3 << 4); + break; + case 32842000: + SSACD_P(port) |= (0x4 << 4); + break; + case 48000000: + SSACD_P(port) |= (0x5 << 4); + break; + } + return 0; +} + +/* + * Set the active slots in TDM/Network mode + */ +static int pxa2xx_ssp_set_dai_tdm_slot(struct snd_soc_cpu_dai *cpu_dai, + unsigned int mask, int slots) +{ + int port = cpu_dai->id + 1; + + SSCR0_P(port) &= ~SSCR0_SlotsPerFrm(7); + + /* set number of active slots */ + SSCR0_P(port) |= SSCR0_SlotsPerFrm(slots); + + /* set active slot mask */ + SSTSA_P(port) = mask; + SSRSA_P(port) = mask; + return 0; +} + +/* + * Tristate the SSP DAI lines + */ +static int pxa2xx_ssp_set_dai_tristate(struct snd_soc_cpu_dai *cpu_dai, + int tristate) +{ + int port = cpu_dai->id + 1; + + if (tristate) + SSCR1_P(port) &= ~SSCR1_TTE; + else + SSCR1_P(port) |= SSCR1_TTE; + + return 0; +} + +/* + * Set up the SSP DAI format. + * The SSP Port must be inactive before calling this function as the + * physical interface format is changed. + */ +static int pxa2xx_ssp_set_dai_fmt(struct snd_soc_cpu_dai *cpu_dai, + unsigned int fmt) +{ + int port = cpu_dai->id + 1; + + /* reset port settings */ + SSCR0_P(port) = 0; + SSCR1_P(port) = 0; + SSPSP_P(port) = 0; + + /* NOTE: I2S emulation is still very much work in progress here */ + + /* FIXME: this is what wince uses for msb */ + if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_MSB) { + SSCR0_P(port) = SSCR0_EDSS | SSCR0_TISSP | SSCR0_DataSize(16); + goto master; + } + + /* check for I2S emulation mode - handle it separately */ + if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_I2S) { + /* 8.4.11 */ + + /* Only SSCR0[NCS] or SSCR0[ECS] bit fields settings are optional */ + SSCR0_P(port) = SSCR0_EDSS | SSCR0_PSP | SSCR0_DataSize(16); + + /* set FIFO thresholds */ + SSCR1_P(port) = SSCR1_RxTresh(14) | SSCR1_TxTresh(1); + + /* normal: */ + /* all bit fields must be cleared except: FSRT = 1 and + * SFRMWDTH = 16, DMYSTART=0,1) */ + SSPSP_P(port) = SSPSP_FSRT | SSPSP_SFRMWDTH(16) | SSPSP_DMYSTRT(0); + goto master; + } + + SSCR0_P(port) |= SSCR0_PSP; + SSCR1_P(port) = SSCR1_RxTresh(14) | SSCR1_TxTresh(1) | + SSCR1_TRAIL | SSCR1_RWOT; + +master: + switch(fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + SSCR1_P(port) |= (SSCR1_SCLKDIR | SSCR1_SFRMDIR); + break; + case SND_SOC_DAIFMT_CBM_CFS: + SSCR1_P(port) |= SSCR1_SCLKDIR; + break; + case SND_SOC_DAIFMT_CBS_CFM: + SSCR1_P(port) |= SSCR1_SFRMDIR; + break; + case SND_SOC_DAIFMT_CBS_CFS: + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + SSPSP_P(port) |= SSPSP_SFRMP | SSPSP_FSRT; + break; + case SND_SOC_DAIFMT_IB_IF: + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + SSPSP_P(port) |= SSPSP_DMYSTRT(1); + case SND_SOC_DAIFMT_DSP_B: + SSPSP_P(port) |= SSPSP_SCMODE(2); + break; + case SND_SOC_DAIFMT_I2S: + case SND_SOC_DAIFMT_MSB: + /* handled above */ + break; + default: + return -EINVAL; + } + + return 0; +} + +/* + * Set the SSP audio DMA parameters and sample size. + * Can be called multiple times by oss emulation. + */ +static int pxa2xx_ssp_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; + int dma = 0, chn = params_channels(params); + int port = cpu_dai->id + 1; + + /* select correct DMA params */ + if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) + dma = 1; /* capture DMA offset is 1,3 */ + if (chn == 2) + dma += 2; /* stereo DMA offset is 2, mono is 0 */ + cpu_dai->dma_data = ssp_dma_params[cpu_dai->id][dma]; + + dbg("pxa2xx_ssp_hw_params: dma %d", dma); + + /* we can only change the settings if the port is not in use */ + if (SSCR0_P(port) & SSCR0_SSE) + return 0; + + /* clear selected SSP bits */ + SSCR0_P(port) &= ~(SSCR0_DSS | SSCR0_EDSS); + + /* bit size */ + switch(params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + SSCR0_P(port) |= SSCR0_DataSize(16); + break; + case SNDRV_PCM_FORMAT_S24_LE: + SSCR0_P(port) |=(SSCR0_EDSS | SSCR0_DataSize(8)); + /* we must be in network mode (2 slots) for 24 bit stereo */ + break; + case SNDRV_PCM_FORMAT_S32_LE: + SSCR0_P(port) |= (SSCR0_EDSS | SSCR0_DataSize(16)); + /* we must be in network mode (2 slots) for 32 bit stereo */ + break; + } + + dbg("SSCR0 0x%08x SSCR1 0x%08x SSTO 0x%08x SSPSP 0x%08x SSSR 0x%08x SSACD 0x%08x", + SSCR0_P(port), SSCR1_P(port), + SSTO_P(port), SSPSP_P(port), + SSSR_P(port), SSACD_P(port)); + + return 0; +} + +static int pxa2xx_ssp_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; + int ret = 0; + int port = cpu_dai->id + 1; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_RESUME: + ssp_enable(&ssp[cpu_dai->id]); + break; + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + SSCR1_P(port) |= SSCR1_TSRE; + else + SSCR1_P(port) |= SSCR1_RSRE; + SSSR_P(port) |= SSSR_P(port); + break; + case SNDRV_PCM_TRIGGER_START: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + SSCR1_P(port) |= SSCR1_TSRE; + else + SSCR1_P(port) |= SSCR1_RSRE; + ssp_enable(&ssp[cpu_dai->id]); + break; + case SNDRV_PCM_TRIGGER_STOP: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + SSCR1_P(port) &= ~SSCR1_TSRE; + else + SSCR1_P(port) &= ~SSCR1_RSRE; + break; + case SNDRV_PCM_TRIGGER_SUSPEND: + ssp_disable(&ssp[cpu_dai->id]); + break; + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + SSCR1_P(port) &= ~SSCR1_TSRE; + else + SSCR1_P(port) &= ~SSCR1_RSRE; + break; + + default: + ret = -EINVAL; + } + + dbg("SSCR0 0x%08x SSCR1 0x%08x SSTO 0x%08x SSPSP 0x%08x SSSR 0x%08x", + SSCR0_P(port), SSCR1_P(port), + SSTO_P(port), SSPSP_P(port), + SSSR_P(port)); + + return ret; +} + +#define PXA2XX_SSP_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) + +#define PXA2XX_SSP_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) + +struct snd_soc_cpu_dai pxa_ssp_dai[] = { + { .name = "pxa2xx-ssp1", + .id = 0, + .type = SND_SOC_DAI_PCM, + .suspend = pxa2xx_ssp_suspend, + .resume = pxa2xx_ssp_resume, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = PXA2XX_SSP_RATES, + .formats = PXA2XX_SSP_FORMATS,}, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rates = PXA2XX_SSP_RATES, + .formats = PXA2XX_SSP_FORMATS,}, + .ops = { + .startup = pxa2xx_ssp_startup, + .shutdown = pxa2xx_ssp_shutdown, + .trigger = pxa2xx_ssp_trigger, + .hw_params = pxa2xx_ssp_hw_params,}, + .dai_ops = { + .set_sysclk = pxa2xx_ssp_set_dai_sysclk, + .set_clkdiv = pxa2xx_ssp_set_dai_clkdiv, + .set_pll = pxa2xx_ssp_set_dai_pll, + .set_fmt = pxa2xx_ssp_set_dai_fmt, + .set_tdm_slot = pxa2xx_ssp_set_dai_tdm_slot, + .set_tristate = pxa2xx_ssp_set_dai_tristate, + }, + }, + { .name = "pxa2xx-ssp2", + .id = 1, + .type = SND_SOC_DAI_PCM, + .suspend = pxa2xx_ssp_suspend, + .resume = pxa2xx_ssp_resume, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = PXA2XX_SSP_RATES, + .formats = PXA2XX_SSP_FORMATS,}, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rates = PXA2XX_SSP_RATES, + .formats = PXA2XX_SSP_FORMATS,}, + .ops = { + .startup = pxa2xx_ssp_startup, + .shutdown = pxa2xx_ssp_shutdown, + .trigger = pxa2xx_ssp_trigger, + .hw_params = pxa2xx_ssp_hw_params,}, + .dai_ops = { + .set_sysclk = pxa2xx_ssp_set_dai_sysclk, + .set_clkdiv = pxa2xx_ssp_set_dai_clkdiv, + .set_pll = pxa2xx_ssp_set_dai_pll, + .set_fmt = pxa2xx_ssp_set_dai_fmt, + .set_tdm_slot = pxa2xx_ssp_set_dai_tdm_slot, + .set_tristate = pxa2xx_ssp_set_dai_tristate, + }, + }, + { .name = "pxa2xx-ssp3", + .id = 2, + .type = SND_SOC_DAI_PCM, + .suspend = pxa2xx_ssp_suspend, + .resume = pxa2xx_ssp_resume, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = PXA2XX_SSP_RATES, + .formats = PXA2XX_SSP_FORMATS,}, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rates = PXA2XX_SSP_RATES, + .formats = PXA2XX_SSP_FORMATS,}, + .ops = { + .startup = pxa2xx_ssp_startup, + .shutdown = pxa2xx_ssp_shutdown, + .trigger = pxa2xx_ssp_trigger, + .hw_params = pxa2xx_ssp_hw_params,}, + .dai_ops = { + .set_sysclk = pxa2xx_ssp_set_dai_sysclk, + .set_clkdiv = pxa2xx_ssp_set_dai_clkdiv, + .set_pll = pxa2xx_ssp_set_dai_pll, + .set_fmt = pxa2xx_ssp_set_dai_fmt, + .set_tdm_slot = pxa2xx_ssp_set_dai_tdm_slot, + .set_tristate = pxa2xx_ssp_set_dai_tristate, + }, + }, +}; +EXPORT_SYMBOL_GPL(pxa_ssp_dai); + +/* Module information */ +MODULE_AUTHOR("Liam Girdwood, liam.girdwood@wolfsonmicro.com, www.wolfsonmicro.com"); +MODULE_DESCRIPTION("pxa2xx SSP/PCM SoC Interface"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/pxa/pxa2xx-ssp.h b/sound/soc/pxa/pxa2xx-ssp.h new file mode 100644 index 0000000..67ef003 --- /dev/null +++ b/sound/soc/pxa/pxa2xx-ssp.h @@ -0,0 +1,43 @@ +/* + * linux/sound/arm/pxa2xx-ssp.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _PXA2XX_SSP_H +#define _PXA2XX_SSP_H + +/* pxa2xx DAI SSP ID's */ +#define PXA2XX_DAI_SSP1 0 +#define PXA2XX_DAI_SSP2 1 +#define PXA2XX_DAI_SSP3 2 + +/* SSP clock sources */ +#define PXA2XX_SSP_CLK_PLL 0 +#define PXA2XX_SSP_CLK_EXT 1 +#define PXA2XX_SSP_CLK_NET 2 +#define PXA2XX_SSP_CLK_AUDIO 3 +#define PXA2XX_SSP_CLK_NET_PLL 4 + +/* SSP audio dividers */ +#define PXA2XX_SSP_AUDIO_DIV_ACDS 0 +#define PXA2XX_SSP_AUDIO_DIV_SCDB 1 +#define PXA2XX_SSP_DIV_SCR 2 + +/* SSP ACDS audio dividers values */ +#define PXA2XX_SSP_CLK_AUDIO_DIV_1 0 +#define PXA2XX_SSP_CLK_AUDIO_DIV_2 1 +#define PXA2XX_SSP_CLK_AUDIO_DIV_4 2 +#define PXA2XX_SSP_CLK_AUDIO_DIV_8 3 +#define PXA2XX_SSP_CLK_AUDIO_DIV_16 4 +#define PXA2XX_SSP_CLK_AUDIO_DIV_32 5 + +/* SSP divider bypass */ +#define PXA2XX_SSP_CLK_SCDB_4 0 +#define PXA2XX_SSP_CLK_SCDB_1 1 + +extern struct snd_soc_cpu_dai pxa_ssp_dai[3]; + +#endif