]> nv-tegra.nvidia Code Review - linux-2.6.git/blobdiff - sound/soc/omap/omap-mcbsp.c
ALSA: ASoC: OMAP: Add support for OMAP2430 and OMAP34xx in McBSP DAI driver
[linux-2.6.git] / sound / soc / omap / omap-mcbsp.c
index 35310e16d7f3658623fdf9755ae6df7190688a1e..e97e6b28b8a7ea52220fe8efa3dbeba546b25c36 100644 (file)
@@ -84,11 +84,22 @@ static const unsigned long omap1_mcbsp_port[][2] = {
 static const int omap1_dma_reqs[][2] = {};
 static const unsigned long omap1_mcbsp_port[][2] = {};
 #endif
-#if defined(CONFIG_ARCH_OMAP2420)
-static const int omap2420_dma_reqs[][2] = {
+
+#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
+static const int omap24xx_dma_reqs[][2] = {
        { OMAP24XX_DMA_MCBSP1_TX, OMAP24XX_DMA_MCBSP1_RX },
        { OMAP24XX_DMA_MCBSP2_TX, OMAP24XX_DMA_MCBSP2_RX },
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX)
+       { OMAP24XX_DMA_MCBSP3_TX, OMAP24XX_DMA_MCBSP3_RX },
+       { OMAP24XX_DMA_MCBSP4_TX, OMAP24XX_DMA_MCBSP4_RX },
+       { OMAP24XX_DMA_MCBSP5_TX, OMAP24XX_DMA_MCBSP5_RX },
+#endif
 };
+#else
+static const int omap24xx_dma_reqs[][2] = {};
+#endif
+
+#if defined(CONFIG_ARCH_OMAP2420)
 static const unsigned long omap2420_mcbsp_port[][2] = {
        { OMAP24XX_MCBSP1_BASE + OMAP_MCBSP_REG_DXR1,
          OMAP24XX_MCBSP1_BASE + OMAP_MCBSP_REG_DRR1 },
@@ -96,10 +107,43 @@ static const unsigned long omap2420_mcbsp_port[][2] = {
          OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DRR1 },
 };
 #else
-static const int omap2420_dma_reqs[][2] = {};
 static const unsigned long omap2420_mcbsp_port[][2] = {};
 #endif
 
+#if defined(CONFIG_ARCH_OMAP2430)
+static const unsigned long omap2430_mcbsp_port[][2] = {
+       { OMAP24XX_MCBSP1_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP24XX_MCBSP1_BASE + OMAP_MCBSP_REG_DRR },
+       { OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DRR },
+       { OMAP2430_MCBSP3_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP2430_MCBSP3_BASE + OMAP_MCBSP_REG_DRR },
+       { OMAP2430_MCBSP4_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP2430_MCBSP4_BASE + OMAP_MCBSP_REG_DRR },
+       { OMAP2430_MCBSP5_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP2430_MCBSP5_BASE + OMAP_MCBSP_REG_DRR },
+};
+#else
+static const unsigned long omap2430_mcbsp_port[][2] = {};
+#endif
+
+#if defined(CONFIG_ARCH_OMAP34XX)
+static const unsigned long omap34xx_mcbsp_port[][2] = {
+       { OMAP34XX_MCBSP1_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP34XX_MCBSP1_BASE + OMAP_MCBSP_REG_DRR },
+       { OMAP34XX_MCBSP2_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP34XX_MCBSP2_BASE + OMAP_MCBSP_REG_DRR },
+       { OMAP34XX_MCBSP3_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP34XX_MCBSP3_BASE + OMAP_MCBSP_REG_DRR },
+       { OMAP34XX_MCBSP4_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP34XX_MCBSP4_BASE + OMAP_MCBSP_REG_DRR },
+       { OMAP34XX_MCBSP5_BASE + OMAP_MCBSP_REG_DXR,
+         OMAP34XX_MCBSP5_BASE + OMAP_MCBSP_REG_DRR },
+};
+#else
+static const unsigned long omap34xx_mcbsp_port[][2] = {};
+#endif
+
 static int omap_mcbsp_dai_startup(struct snd_pcm_substream *substream)
 {
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
@@ -167,12 +211,15 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
                dma = omap1_dma_reqs[bus_id][substream->stream];
                port = omap1_mcbsp_port[bus_id][substream->stream];
        } else if (cpu_is_omap2420()) {
-               dma = omap2420_dma_reqs[bus_id][substream->stream];
+               dma = omap24xx_dma_reqs[bus_id][substream->stream];
                port = omap2420_mcbsp_port[bus_id][substream->stream];
+       } else if (cpu_is_omap2430()) {
+               dma = omap24xx_dma_reqs[bus_id][substream->stream];
+               port = omap2430_mcbsp_port[bus_id][substream->stream];
+       } else if (cpu_is_omap343x()) {
+               dma = omap24xx_dma_reqs[bus_id][substream->stream];
+               port = omap34xx_mcbsp_port[bus_id][substream->stream];
        } else {
-               /*
-                * TODO: Add support for 2430 and 3430
-                */
                return -ENODEV;
        }
        omap_mcbsp_dai_dma_params[id][substream->stream].dma_req = dma;
@@ -245,6 +292,11 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
                regs->rcr2      |= RDATDLY(1);
                regs->xcr2      |= XDATDLY(1);
                break;
+       case SND_SOC_DAIFMT_DSP_A:
+               /* 0-bit data delay */
+               regs->rcr2      |= RDATDLY(0);
+               regs->xcr2      |= XDATDLY(0);
+               break;
        default:
                /* Unsupported data format */
                return -EINVAL;
@@ -310,7 +362,7 @@ static int omap_mcbsp_dai_set_clks_src(struct omap_mcbsp_data *mcbsp_data,
                                       int clk_id)
 {
        int sel_bit;
-       u16 reg;
+       u16 reg, reg_devconf1 = OMAP243X_CONTROL_DEVCONF1;
 
        if (cpu_class_is_omap1()) {
                /* OMAP1's can use only external source clock */
@@ -320,6 +372,12 @@ static int omap_mcbsp_dai_set_clks_src(struct omap_mcbsp_data *mcbsp_data,
                        return 0;
        }
 
+       if (cpu_is_omap2420() && mcbsp_data->bus_id > 1)
+               return -EINVAL;
+
+       if (cpu_is_omap343x())
+               reg_devconf1 = OMAP343X_CONTROL_DEVCONF1;
+
        switch (mcbsp_data->bus_id) {
        case 0:
                reg = OMAP2_CONTROL_DEVCONF0;
@@ -329,20 +387,26 @@ static int omap_mcbsp_dai_set_clks_src(struct omap_mcbsp_data *mcbsp_data,
                reg = OMAP2_CONTROL_DEVCONF0;
                sel_bit = 6;
                break;
-       /* TODO: Support for ports 3 - 5 in OMAP2430 and OMAP34xx */
+       case 2:
+               reg = reg_devconf1;
+               sel_bit = 0;
+               break;
+       case 3:
+               reg = reg_devconf1;
+               sel_bit = 2;
+               break;
+       case 4:
+               reg = reg_devconf1;
+               sel_bit = 4;
+               break;
        default:
                return -EINVAL;
        }
 
-       if (cpu_class_is_omap2()) {
-               if (clk_id == OMAP_MCBSP_SYSCLK_CLKS_FCLK) {
-                       omap_ctrl_writel(omap_ctrl_readl(reg) &
-                                        ~(1 << sel_bit), reg);
-               } else {
-                       omap_ctrl_writel(omap_ctrl_readl(reg) |
-                                        (1 << sel_bit), reg);
-               }
-       }
+       if (clk_id == OMAP_MCBSP_SYSCLK_CLKS_FCLK)
+               omap_ctrl_writel(omap_ctrl_readl(reg) & ~(1 << sel_bit), reg);
+       else
+               omap_ctrl_writel(omap_ctrl_readl(reg) | (1 << sel_bit), reg);
 
        return 0;
 }
@@ -376,37 +440,49 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
        return err;
 }
 
-struct snd_soc_dai omap_mcbsp_dai[NUM_LINKS] = {
-{
-       .name = "omap-mcbsp-dai",
-       .id = 0,
-       .type = SND_SOC_DAI_I2S,
-       .playback = {
-               .channels_min = 2,
-               .channels_max = 2,
-               .rates = OMAP_MCBSP_RATES,
-               .formats = SNDRV_PCM_FMTBIT_S16_LE,
-       },
-       .capture = {
-               .channels_min = 2,
-               .channels_max = 2,
-               .rates = OMAP_MCBSP_RATES,
-               .formats = SNDRV_PCM_FMTBIT_S16_LE,
-       },
-       .ops = {
-               .startup = omap_mcbsp_dai_startup,
-               .shutdown = omap_mcbsp_dai_shutdown,
-               .trigger = omap_mcbsp_dai_trigger,
-               .hw_params = omap_mcbsp_dai_hw_params,
-       },
-       .dai_ops = {
-               .set_fmt = omap_mcbsp_dai_set_dai_fmt,
-               .set_clkdiv = omap_mcbsp_dai_set_clkdiv,
-               .set_sysclk = omap_mcbsp_dai_set_dai_sysclk,
-       },
-       .private_data = &mcbsp_data[0].bus_id,
-},
+#define OMAP_MCBSP_DAI_BUILDER(link_id)                                \
+{                                                              \
+       .name = "omap-mcbsp-dai-(link_id)",                     \
+       .id = (link_id),                                        \
+       .type = SND_SOC_DAI_I2S,                                \
+       .playback = {                                           \
+               .channels_min = 2,                              \
+               .channels_max = 2,                              \
+               .rates = OMAP_MCBSP_RATES,                      \
+               .formats = SNDRV_PCM_FMTBIT_S16_LE,             \
+       },                                                      \
+       .capture = {                                            \
+               .channels_min = 2,                              \
+               .channels_max = 2,                              \
+               .rates = OMAP_MCBSP_RATES,                      \
+               .formats = SNDRV_PCM_FMTBIT_S16_LE,             \
+       },                                                      \
+       .ops = {                                                \
+               .startup = omap_mcbsp_dai_startup,              \
+               .shutdown = omap_mcbsp_dai_shutdown,            \
+               .trigger = omap_mcbsp_dai_trigger,              \
+               .hw_params = omap_mcbsp_dai_hw_params,          \
+       },                                                      \
+       .dai_ops = {                                            \
+               .set_fmt = omap_mcbsp_dai_set_dai_fmt,          \
+               .set_clkdiv = omap_mcbsp_dai_set_clkdiv,        \
+               .set_sysclk = omap_mcbsp_dai_set_dai_sysclk,    \
+       },                                                      \
+       .private_data = &mcbsp_data[(link_id)].bus_id,          \
+}
+
+struct snd_soc_dai omap_mcbsp_dai[] = {
+       OMAP_MCBSP_DAI_BUILDER(0),
+       OMAP_MCBSP_DAI_BUILDER(1),
+#if NUM_LINKS >= 3
+       OMAP_MCBSP_DAI_BUILDER(2),
+#endif
+#if NUM_LINKS == 5
+       OMAP_MCBSP_DAI_BUILDER(3),
+       OMAP_MCBSP_DAI_BUILDER(4),
+#endif
 };
+
 EXPORT_SYMBOL_GPL(omap_mcbsp_dai);
 
 MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@nokia.com>");