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ALSA: ASoC: OMAP: Add support for OMAP2430 and OMAP34xx in McBSP DAI …
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…driver

Thanks to Arun KS <arunks@mistralsolutions.com> for fixing one typo in
original version of this patch.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Jarkko Nikula authored and Takashi Iwai committed Oct 13, 2008
1 parent 8def464 commit 406e2c4
Showing 1 changed file with 77 additions and 18 deletions.
95 changes: 77 additions & 18 deletions sound/soc/omap/omap-mcbsp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -84,22 +84,66 @@ 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 },
{ OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DXR1,
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;
Expand Down Expand Up @@ -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;
Expand Down Expand Up @@ -315,7 +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 */
Expand All @@ -325,6 +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;
Expand All @@ -334,20 +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;
}
Expand Down

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