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-rw-r--r--sound/soc/samsung/pcm.c118
1 files changed, 108 insertions, 10 deletions
diff --git a/sound/soc/samsung/pcm.c b/sound/soc/samsung/pcm.c
index 48d0b750406..38aac7d57a5 100644
--- a/sound/soc/samsung/pcm.c
+++ b/sound/soc/samsung/pcm.c
@@ -11,20 +11,11 @@
* published by the Free Software Foundation.
*/
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/delay.h>
#include <linux/clk.h>
-#include <linux/kernel.h>
-#include <linux/gpio.h>
#include <linux/io.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
#include <sound/soc.h>
+#include <sound/pcm_params.h>
#include <plat/audio.h>
#include <plat/dma.h>
@@ -32,6 +23,113 @@
#include "dma.h"
#include "pcm.h"
+/*Register Offsets */
+#define S3C_PCM_CTL 0x00
+#define S3C_PCM_CLKCTL 0x04
+#define S3C_PCM_TXFIFO 0x08
+#define S3C_PCM_RXFIFO 0x0C
+#define S3C_PCM_IRQCTL 0x10
+#define S3C_PCM_IRQSTAT 0x14
+#define S3C_PCM_FIFOSTAT 0x18
+#define S3C_PCM_CLRINT 0x20
+
+/* PCM_CTL Bit-Fields */
+#define S3C_PCM_CTL_TXDIPSTICK_MASK 0x3f
+#define S3C_PCM_CTL_TXDIPSTICK_SHIFT 13
+#define S3C_PCM_CTL_RXDIPSTICK_MASK 0x3f
+#define S3C_PCM_CTL_RXDIPSTICK_SHIFT 7
+#define S3C_PCM_CTL_TXDMA_EN (0x1 << 6)
+#define S3C_PCM_CTL_RXDMA_EN (0x1 << 5)
+#define S3C_PCM_CTL_TXMSB_AFTER_FSYNC (0x1 << 4)
+#define S3C_PCM_CTL_RXMSB_AFTER_FSYNC (0x1 << 3)
+#define S3C_PCM_CTL_TXFIFO_EN (0x1 << 2)
+#define S3C_PCM_CTL_RXFIFO_EN (0x1 << 1)
+#define S3C_PCM_CTL_ENABLE (0x1 << 0)
+
+/* PCM_CLKCTL Bit-Fields */
+#define S3C_PCM_CLKCTL_SERCLK_EN (0x1 << 19)
+#define S3C_PCM_CLKCTL_SERCLKSEL_PCLK (0x1 << 18)
+#define S3C_PCM_CLKCTL_SCLKDIV_MASK 0x1ff
+#define S3C_PCM_CLKCTL_SYNCDIV_MASK 0x1ff
+#define S3C_PCM_CLKCTL_SCLKDIV_SHIFT 9
+#define S3C_PCM_CLKCTL_SYNCDIV_SHIFT 0
+
+/* PCM_TXFIFO Bit-Fields */
+#define S3C_PCM_TXFIFO_DVALID (0x1 << 16)
+#define S3C_PCM_TXFIFO_DATA_MSK (0xffff << 0)
+
+/* PCM_RXFIFO Bit-Fields */
+#define S3C_PCM_RXFIFO_DVALID (0x1 << 16)
+#define S3C_PCM_RXFIFO_DATA_MSK (0xffff << 0)
+
+/* PCM_IRQCTL Bit-Fields */
+#define S3C_PCM_IRQCTL_IRQEN (0x1 << 14)
+#define S3C_PCM_IRQCTL_WRDEN (0x1 << 12)
+#define S3C_PCM_IRQCTL_TXEMPTYEN (0x1 << 11)
+#define S3C_PCM_IRQCTL_TXALMSTEMPTYEN (0x1 << 10)
+#define S3C_PCM_IRQCTL_TXFULLEN (0x1 << 9)
+#define S3C_PCM_IRQCTL_TXALMSTFULLEN (0x1 << 8)
+#define S3C_PCM_IRQCTL_TXSTARVEN (0x1 << 7)
+#define S3C_PCM_IRQCTL_TXERROVRFLEN (0x1 << 6)
+#define S3C_PCM_IRQCTL_RXEMPTEN (0x1 << 5)
+#define S3C_PCM_IRQCTL_RXALMSTEMPTEN (0x1 << 4)
+#define S3C_PCM_IRQCTL_RXFULLEN (0x1 << 3)
+#define S3C_PCM_IRQCTL_RXALMSTFULLEN (0x1 << 2)
+#define S3C_PCM_IRQCTL_RXSTARVEN (0x1 << 1)
+#define S3C_PCM_IRQCTL_RXERROVRFLEN (0x1 << 0)
+
+/* PCM_IRQSTAT Bit-Fields */
+#define S3C_PCM_IRQSTAT_IRQPND (0x1 << 13)
+#define S3C_PCM_IRQSTAT_WRD_XFER (0x1 << 12)
+#define S3C_PCM_IRQSTAT_TXEMPTY (0x1 << 11)
+#define S3C_PCM_IRQSTAT_TXALMSTEMPTY (0x1 << 10)
+#define S3C_PCM_IRQSTAT_TXFULL (0x1 << 9)
+#define S3C_PCM_IRQSTAT_TXALMSTFULL (0x1 << 8)
+#define S3C_PCM_IRQSTAT_TXSTARV (0x1 << 7)
+#define S3C_PCM_IRQSTAT_TXERROVRFL (0x1 << 6)
+#define S3C_PCM_IRQSTAT_RXEMPT (0x1 << 5)
+#define S3C_PCM_IRQSTAT_RXALMSTEMPT (0x1 << 4)
+#define S3C_PCM_IRQSTAT_RXFULL (0x1 << 3)
+#define S3C_PCM_IRQSTAT_RXALMSTFULL (0x1 << 2)
+#define S3C_PCM_IRQSTAT_RXSTARV (0x1 << 1)
+#define S3C_PCM_IRQSTAT_RXERROVRFL (0x1 << 0)
+
+/* PCM_FIFOSTAT Bit-Fields */
+#define S3C_PCM_FIFOSTAT_TXCNT_MSK (0x3f << 14)
+#define S3C_PCM_FIFOSTAT_TXFIFOEMPTY (0x1 << 13)
+#define S3C_PCM_FIFOSTAT_TXFIFOALMSTEMPTY (0x1 << 12)
+#define S3C_PCM_FIFOSTAT_TXFIFOFULL (0x1 << 11)
+#define S3C_PCM_FIFOSTAT_TXFIFOALMSTFULL (0x1 << 10)
+#define S3C_PCM_FIFOSTAT_RXCNT_MSK (0x3f << 4)
+#define S3C_PCM_FIFOSTAT_RXFIFOEMPTY (0x1 << 3)
+#define S3C_PCM_FIFOSTAT_RXFIFOALMSTEMPTY (0x1 << 2)
+#define S3C_PCM_FIFOSTAT_RXFIFOFULL (0x1 << 1)
+#define S3C_PCM_FIFOSTAT_RXFIFOALMSTFULL (0x1 << 0)
+
+/**
+ * struct s3c_pcm_info - S3C PCM Controller information
+ * @dev: The parent device passed to use from the probe.
+ * @regs: The pointer to the device register block.
+ * @dma_playback: DMA information for playback channel.
+ * @dma_capture: DMA information for capture channel.
+ */
+struct s3c_pcm_info {
+ spinlock_t lock;
+ struct device *dev;
+ void __iomem *regs;
+
+ unsigned int sclk_per_fs;
+
+ /* Whether to keep PCMSCLK enabled even when idle(no active xfer) */
+ unsigned int idleclk;
+
+ struct clk *pclk;
+ struct clk *cclk;
+
+ struct s3c_dma_params *dma_playback;
+ struct s3c_dma_params *dma_capture;
+};
+
static struct s3c2410_dma_client s3c_pcm_dma_client_out = {
.name = "PCM Stereo out"
};