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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 13:09:45 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-11 13:09:45 -0400
commit7cc4e87f912bbefa440a51856b8d076e5d1f554a (patch)
tree1b8df8683f3de37d2e8211ffa8d151f60d59af62 /sound/soc/pxa/pxa2xx-i2s.c
parent5ba2f67afb02c5302b2898949ed6fc3b3d37dcf1 (diff)
parent69fc7eed5f56bce15b239e5110de2575a6970df4 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (236 commits) [ARM] 5300/1: fixup spitz reset during boot [ARM] 5295/1: make ZONE_DMA optional [ARM] 5239/1: Palm Zire 72 power management support [ARM] 5298/1: Drop desc_handle_irq() [ARM] 5297/1: [KS8695] Fix two compile-time warnings [ARM] 5296/1: [KS8695] Replace macro's with trailing underscores. [ARM] pxa: allow multi-machine PCMCIA builds [ARM] pxa: add preliminary CPUFREQ support for PXA3xx [ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h [ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c [ARM] pxa/zylonite: add support for USB OHCI [ARM] ohci-pxa27x: use ioremap() and offset for register access [ARM] ohci-pxa27x: introduce pxa27x_clear_otgph() [ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource [ARM] ohci-pxa27x: move OHCI controller specific registers into the driver [ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers [ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c [ARM] pxa: simplify DMA register definitions [ARM] pxa: make additional DCSR bits valid for PXA3xx [ARM] pxa: move i2c register and bit definitions into i2c-pxa.c ... Fixed up conflicts in arch/arm/mach-versatile/core.c sound/soc/pxa/pxa2xx-ac97.c sound/soc/pxa/pxa2xx-i2s.c manually.
Diffstat (limited to 'sound/soc/pxa/pxa2xx-i2s.c')
-rw-r--r--sound/soc/pxa/pxa2xx-i2s.c43
1 files changed, 41 insertions, 2 deletions
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 39d19212f6d3..2fb58298513b 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -39,6 +39,45 @@ struct pxa2xx_gpio {
39 u32 frm; 39 u32 frm;
40}; 40};
41 41
42/*
43 * I2S Controller Register and Bit Definitions
44 */
45#define SACR0 __REG(0x40400000) /* Global Control Register */
46#define SACR1 __REG(0x40400004) /* Serial Audio I 2 S/MSB-Justified Control Register */
47#define SASR0 __REG(0x4040000C) /* Serial Audio I 2 S/MSB-Justified Interface and FIFO Status Register */
48#define SAIMR __REG(0x40400014) /* Serial Audio Interrupt Mask Register */
49#define SAICR __REG(0x40400018) /* Serial Audio Interrupt Clear Register */
50#define SADIV __REG(0x40400060) /* Audio Clock Divider Register. */
51#define SADR __REG(0x40400080) /* Serial Audio Data Register (TX and RX FIFO access Register). */
52
53#define SACR0_RFTH(x) ((x) << 12) /* Rx FIFO Interrupt or DMA Trigger Threshold */
54#define SACR0_TFTH(x) ((x) << 8) /* Tx FIFO Interrupt or DMA Trigger Threshold */
55#define SACR0_STRF (1 << 5) /* FIFO Select for EFWR Special Function */
56#define SACR0_EFWR (1 << 4) /* Enable EFWR Function */
57#define SACR0_RST (1 << 3) /* FIFO, i2s Register Reset */
58#define SACR0_BCKD (1 << 2) /* Bit Clock Direction */
59#define SACR0_ENB (1 << 0) /* Enable I2S Link */
60#define SACR1_ENLBF (1 << 5) /* Enable Loopback */
61#define SACR1_DRPL (1 << 4) /* Disable Replaying Function */
62#define SACR1_DREC (1 << 3) /* Disable Recording Function */
63#define SACR1_AMSL (1 << 0) /* Specify Alternate Mode */
64
65#define SASR0_I2SOFF (1 << 7) /* Controller Status */
66#define SASR0_ROR (1 << 6) /* Rx FIFO Overrun */
67#define SASR0_TUR (1 << 5) /* Tx FIFO Underrun */
68#define SASR0_RFS (1 << 4) /* Rx FIFO Service Request */
69#define SASR0_TFS (1 << 3) /* Tx FIFO Service Request */
70#define SASR0_BSY (1 << 2) /* I2S Busy */
71#define SASR0_RNE (1 << 1) /* Rx FIFO Not Empty */
72#define SASR0_TNF (1 << 0) /* Tx FIFO Not Empty */
73
74#define SAICR_ROR (1 << 6) /* Clear Rx FIFO Overrun Interrupt */
75#define SAICR_TUR (1 << 5) /* Clear Tx FIFO Underrun Interrupt */
76
77#define SAIMR_ROR (1 << 6) /* Enable Rx FIFO Overrun Condition Interrupt */
78#define SAIMR_TUR (1 << 5) /* Enable Tx FIFO Underrun Condition Interrupt */
79#define SAIMR_RFS (1 << 4) /* Enable Rx FIFO Service Interrupt */
80#define SAIMR_TFS (1 << 3) /* Enable Tx FIFO Service Interrupt */
42 81
43struct pxa_i2s_port { 82struct pxa_i2s_port {
44 u32 sadiv; 83 u32 sadiv;
@@ -54,7 +93,7 @@ static struct clk *clk_i2s;
54static struct pxa2xx_pcm_dma_params pxa2xx_i2s_pcm_stereo_out = { 93static struct pxa2xx_pcm_dma_params pxa2xx_i2s_pcm_stereo_out = {
55 .name = "I2S PCM Stereo out", 94 .name = "I2S PCM Stereo out",
56 .dev_addr = __PREG(SADR), 95 .dev_addr = __PREG(SADR),
57 .drcmr = &DRCMRTXSADR, 96 .drcmr = &DRCMR(3),
58 .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | 97 .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
59 DCMD_BURST32 | DCMD_WIDTH4, 98 DCMD_BURST32 | DCMD_WIDTH4,
60}; 99};
@@ -62,7 +101,7 @@ static struct pxa2xx_pcm_dma_params pxa2xx_i2s_pcm_stereo_out = {
62static struct pxa2xx_pcm_dma_params pxa2xx_i2s_pcm_stereo_in = { 101static struct pxa2xx_pcm_dma_params pxa2xx_i2s_pcm_stereo_in = {
63 .name = "I2S PCM Stereo in", 102 .name = "I2S PCM Stereo in",
64 .dev_addr = __PREG(SADR), 103 .dev_addr = __PREG(SADR),
65 .drcmr = &DRCMRRXSADR, 104 .drcmr = &DRCMR(2),
66 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | 105 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
67 DCMD_BURST32 | DCMD_WIDTH4, 106 DCMD_BURST32 | DCMD_WIDTH4,
68}; 107};