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-rw-r--r--sound/soc/pxa/pxa2xx-i2s.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 2dbe612fdddc..ad4c31ddb3d4 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -30,6 +30,46 @@
30#include "pxa2xx-pcm.h" 30#include "pxa2xx-pcm.h"
31#include "pxa2xx-i2s.h" 31#include "pxa2xx-i2s.h"
32 32
33/*
34 * I2S Controller Register and Bit Definitions
35 */
36#define SACR0 __REG(0x40400000) /* Global Control Register */
37#define SACR1 __REG(0x40400004) /* Serial Audio I 2 S/MSB-Justified Control Register */
38#define SASR0 __REG(0x4040000C) /* Serial Audio I 2 S/MSB-Justified Interface and FIFO Status Register */
39#define SAIMR __REG(0x40400014) /* Serial Audio Interrupt Mask Register */
40#define SAICR __REG(0x40400018) /* Serial Audio Interrupt Clear Register */
41#define SADIV __REG(0x40400060) /* Audio Clock Divider Register. */
42#define SADR __REG(0x40400080) /* Serial Audio Data Register (TX and RX FIFO access Register). */
43
44#define SACR0_RFTH(x) ((x) << 12) /* Rx FIFO Interrupt or DMA Trigger Threshold */
45#define SACR0_TFTH(x) ((x) << 8) /* Tx FIFO Interrupt or DMA Trigger Threshold */
46#define SACR0_STRF (1 << 5) /* FIFO Select for EFWR Special Function */
47#define SACR0_EFWR (1 << 4) /* Enable EFWR Function */
48#define SACR0_RST (1 << 3) /* FIFO, i2s Register Reset */
49#define SACR0_BCKD (1 << 2) /* Bit Clock Direction */
50#define SACR0_ENB (1 << 0) /* Enable I2S Link */
51#define SACR1_ENLBF (1 << 5) /* Enable Loopback */
52#define SACR1_DRPL (1 << 4) /* Disable Replaying Function */
53#define SACR1_DREC (1 << 3) /* Disable Recording Function */
54#define SACR1_AMSL (1 << 0) /* Specify Alternate Mode */
55
56#define SASR0_I2SOFF (1 << 7) /* Controller Status */
57#define SASR0_ROR (1 << 6) /* Rx FIFO Overrun */
58#define SASR0_TUR (1 << 5) /* Tx FIFO Underrun */
59#define SASR0_RFS (1 << 4) /* Rx FIFO Service Request */
60#define SASR0_TFS (1 << 3) /* Tx FIFO Service Request */
61#define SASR0_BSY (1 << 2) /* I2S Busy */
62#define SASR0_RNE (1 << 1) /* Rx FIFO Not Empty */
63#define SASR0_TNF (1 << 0) /* Tx FIFO Not Empty */
64
65#define SAICR_ROR (1 << 6) /* Clear Rx FIFO Overrun Interrupt */
66#define SAICR_TUR (1 << 5) /* Clear Tx FIFO Underrun Interrupt */
67
68#define SAIMR_ROR (1 << 6) /* Enable Rx FIFO Overrun Condition Interrupt */
69#define SAIMR_TUR (1 << 5) /* Enable Tx FIFO Underrun Condition Interrupt */
70#define SAIMR_RFS (1 << 4) /* Enable Rx FIFO Service Interrupt */
71#define SAIMR_TFS (1 << 3) /* Enable Tx FIFO Service Interrupt */
72
33struct pxa_i2s_port { 73struct pxa_i2s_port {
34 u32 sadiv; 74 u32 sadiv;
35 u32 sacr0; 75 u32 sacr0;