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* <mach/asp.h> - DaVinci Audio Serial Port support
*/
#ifndef __ASM_ARCH_DAVINCI_ASP_H
#define __ASM_ARCH_DAVINCI_ASP_H
#include <mach/irqs.h>
#include <mach/edma.h>
/* Bases of dm644x and dm355 register banks */
#define DAVINCI_ASP0_BASE 0x01E02000
#define DAVINCI_ASP1_BASE 0x01E04000
/* Bases of dm365 register banks */
#define DAVINCI_DM365_ASP0_BASE 0x01D02000
/* Bases of dm646x register banks */
#define DAVINCI_DM646X_MCASP0_REG_BASE 0x01D01000
#define DAVINCI_DM646X_MCASP1_REG_BASE 0x01D01800
/* Bases of da850/da830 McASP0 register banks */
#define DAVINCI_DA8XX_MCASP0_REG_BASE 0x01D00000
/* Bases of da830 McASP1 register banks */
#define DAVINCI_DA830_MCASP1_REG_BASE 0x01D04000
/* EDMA channels of dm644x and dm355 */
#define DAVINCI_DMA_ASP0_TX 2
#define DAVINCI_DMA_ASP0_RX 3
#define DAVINCI_DMA_ASP1_TX 8
#define DAVINCI_DMA_ASP1_RX 9
/* EDMA channels of dm646x */
#define DAVINCI_DM646X_DMA_MCASP0_AXEVT0 6
#define DAVINCI_DM646X_DMA_MCASP0_AREVT0 9
#define DAVINCI_DM646X_DMA_MCASP1_AXEVT1 12
/* EDMA channels of da850/da830 McASP0 */
#define DAVINCI_DA8XX_DMA_MCASP0_AREVT 0
#define DAVINCI_DA8XX_DMA_MCASP0_AXEVT 1
/* EDMA channels of da830 McASP1 */
#define DAVINCI_DA830_DMA_MCASP1_AREVT 2
#define DAVINCI_DA830_DMA_MCASP1_AXEVT 3
/* Interrupts */
#define DAVINCI_ASP0_RX_INT IRQ_MBRINT
#define DAVINCI_ASP0_TX_INT IRQ_MBXINT
#define DAVINCI_ASP1_RX_INT IRQ_MBRINT
#define DAVINCI_ASP1_TX_INT IRQ_MBXINT
struct snd_platform_data {
u32 tx_dma_offset;
u32 rx_dma_offset;
enum dma_event_q asp_chan_q; /* event queue number for ASP channel */
enum dma_event_q ram_chan_q; /* event queue number for RAM channel */
unsigned int codec_fmt;
/*
* Allowing this is more efficient and eliminates left and right swaps
* caused by underruns, but will swap the left and right channels
* when compared to previous behavior.
*/
unsigned enable_channel_combine:1;
unsigned sram_size_playback;
unsigned sram_size_capture;
/*
* If McBSP peripheral gets the clock from an external pin,
* there are three chooses, that are MCBSP_CLKX, MCBSP_CLKR
* and MCBSP_CLKS.
* Depending on different hardware connections it is possible
* to use this setting to change the behaviour of McBSP
* driver. The dm365_clk_input_pin enum is available for dm365
*/
int clk_input_pin;
/*
* This flag works when both clock and FS are outputs for the cpu
* and makes clock more accurate (FS is not symmetrical and the
* clock is very fast.
* The clock becoming faster is named
* i2s continuous serial clock (I2S_SCK) and it is an externally
* visible bit clock.
*
* first line : WordSelect
* second line : ContinuousSerialClock
* third line: SerialData
*
* SYMMETRICAL APPROACH:
* _______________________ LEFT
* _| RIGHT |______________________|
* _ _ _ _ _ _ _ _
* _| |_| |_ x16 _| |_| |_| |_| |_ x16 _| |_| |_
* _ _ _ _ _ _ _ _
* _/ \_/ \_ ... _/ \_/ \_/ \_/ \_ ... _/ \_/ \_
* \_/ \_/ \_/ \_/ \_/ \_/ \_/ \_/
*
* ACCURATE CLOCK APPROACH:
* ______________ LEFT
* _| RIGHT |_______________________________|
* _ _ _ _ _ _ _ _ _
* _| |_ x16 _| |_| |_ x16 _| |_| |_| |_| |_| |_| |
* _ _ _ _ dummy cycles
* _/ \_ ... _/ \_/ \_ ... _/ \__________________
* \_/ \_/ \_/ \_/
*
*/
bool i2s_accurate_sck;
/* McASP specific fields */
int tdm_slots;
u8 op_mode;
u8 num_serializer;
u8 *serial_dir;
u8 version;
u8 txnumevt;
u8 rxnumevt;
};
enum {
MCASP_VERSION_1 = 0, /* DM646x */
MCASP_VERSION_2, /* DA8xx/OMAPL1x */
};
enum dm365_clk_input_pin {
MCBSP_CLKR = 0, /* DM365 */
MCBSP_CLKS,
};
#define INACTIVE_MODE 0
#define TX_MODE 1
#define RX_MODE 2
#define DAVINCI_MCASP_IIS_MODE 0
#define DAVINCI_MCASP_DIT_MODE 1
#endif /* __ASM_ARCH_DAVINCI_ASP_H */
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