[alsa-devel] [PATCH] Add pxa2xx SSP audio support.
Mark Brown
broonie at opensource.wolfsonmicro.com
Tue Nov 20 10:25:41 CET 2007
From: Liam Girdwood <liam at localhost.localdomain>
Signed-off-by: Philipp Zabel <philipp.zabel at gmail.com>
Signed-off-by: Nicola Perrino <nicola.perrino at atlab.it>
Signed-off-by: Liam Girdwood <lg at 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 at wolfsonmicro.com or linux at 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 at 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
--
1.5.3.5
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