diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/mcbsp.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/mcbsp.h | 282 |
1 files changed, 216 insertions, 66 deletions
diff --git a/arch/arm/plat-omap/include/plat/mcbsp.h b/arch/arm/plat-omap/include/plat/mcbsp.h index 8fa74e2..f8f690a 100644 --- a/arch/arm/plat-omap/include/plat/mcbsp.h +++ b/arch/arm/plat-omap/include/plat/mcbsp.h @@ -24,74 +24,121 @@ #ifndef __ASM_ARCH_OMAP_MCBSP_H #define __ASM_ARCH_OMAP_MCBSP_H +#include <linux/completion.h> #include <linux/spinlock.h> -#include <linux/clk.h> + +#include <mach/hardware.h> +#include <plat/clock.h> /* macro for building platform_device for McBSP ports */ #define OMAP_MCBSP_PLATFORM_DEVICE(port_nr) \ static struct platform_device omap_mcbsp##port_nr = { \ .name = "omap-mcbsp-dai", \ - .id = port_nr - 1, \ + .id = OMAP_MCBSP##port_nr, \ } #define MCBSP_CONFIG_TYPE2 0x2 #define MCBSP_CONFIG_TYPE3 0x3 #define MCBSP_CONFIG_TYPE4 0x4 -/* McBSP register numbers. Register address offset = num * reg_step */ -enum { - /* Common registers */ - OMAP_MCBSP_REG_SPCR2 = 4, - OMAP_MCBSP_REG_SPCR1, - OMAP_MCBSP_REG_RCR2, - OMAP_MCBSP_REG_RCR1, - OMAP_MCBSP_REG_XCR2, - OMAP_MCBSP_REG_XCR1, - OMAP_MCBSP_REG_SRGR2, - OMAP_MCBSP_REG_SRGR1, - OMAP_MCBSP_REG_MCR2, - OMAP_MCBSP_REG_MCR1, - OMAP_MCBSP_REG_RCERA, - OMAP_MCBSP_REG_RCERB, - OMAP_MCBSP_REG_XCERA, - OMAP_MCBSP_REG_XCERB, - OMAP_MCBSP_REG_PCR0, - OMAP_MCBSP_REG_RCERC, - OMAP_MCBSP_REG_RCERD, - OMAP_MCBSP_REG_XCERC, - OMAP_MCBSP_REG_XCERD, - OMAP_MCBSP_REG_RCERE, - OMAP_MCBSP_REG_RCERF, - OMAP_MCBSP_REG_XCERE, - OMAP_MCBSP_REG_XCERF, - OMAP_MCBSP_REG_RCERG, - OMAP_MCBSP_REG_RCERH, - OMAP_MCBSP_REG_XCERG, - OMAP_MCBSP_REG_XCERH, - - /* OMAP1-OMAP2420 registers */ - OMAP_MCBSP_REG_DRR2 = 0, - OMAP_MCBSP_REG_DRR1, - OMAP_MCBSP_REG_DXR2, - OMAP_MCBSP_REG_DXR1, - - /* OMAP2430 and onwards */ - OMAP_MCBSP_REG_DRR = 0, - OMAP_MCBSP_REG_DXR = 2, - OMAP_MCBSP_REG_SYSCON = 35, - OMAP_MCBSP_REG_THRSH2, - OMAP_MCBSP_REG_THRSH1, - OMAP_MCBSP_REG_IRQST = 40, - OMAP_MCBSP_REG_IRQEN, - OMAP_MCBSP_REG_WAKEUPEN, - OMAP_MCBSP_REG_XCCR, - OMAP_MCBSP_REG_RCCR, - OMAP_MCBSP_REG_XBUFFSTAT, - OMAP_MCBSP_REG_RBUFFSTAT, - OMAP_MCBSP_REG_SSELCR, -}; +#define OMAP7XX_MCBSP1_BASE 0xfffb1000 +#define OMAP7XX_MCBSP2_BASE 0xfffb1800 + +#define OMAP1510_MCBSP1_BASE 0xe1011800 +#define OMAP1510_MCBSP2_BASE 0xfffb1000 +#define OMAP1510_MCBSP3_BASE 0xe1017000 + +#define OMAP1610_MCBSP1_BASE 0xe1011800 +#define OMAP1610_MCBSP2_BASE 0xfffb1000 +#define OMAP1610_MCBSP3_BASE 0xe1017000 + +#ifdef CONFIG_ARCH_OMAP1 + +#define OMAP_MCBSP_REG_DRR2 0x00 +#define OMAP_MCBSP_REG_DRR1 0x02 +#define OMAP_MCBSP_REG_DXR2 0x04 +#define OMAP_MCBSP_REG_DXR1 0x06 +#define OMAP_MCBSP_REG_DRR 0x02 +#define OMAP_MCBSP_REG_DXR 0x06 +#define OMAP_MCBSP_REG_SPCR2 0x08 +#define OMAP_MCBSP_REG_SPCR1 0x0a +#define OMAP_MCBSP_REG_RCR2 0x0c +#define OMAP_MCBSP_REG_RCR1 0x0e +#define OMAP_MCBSP_REG_XCR2 0x10 +#define OMAP_MCBSP_REG_XCR1 0x12 +#define OMAP_MCBSP_REG_SRGR2 0x14 +#define OMAP_MCBSP_REG_SRGR1 0x16 +#define OMAP_MCBSP_REG_MCR2 0x18 +#define OMAP_MCBSP_REG_MCR1 0x1a +#define OMAP_MCBSP_REG_RCERA 0x1c +#define OMAP_MCBSP_REG_RCERB 0x1e +#define OMAP_MCBSP_REG_XCERA 0x20 +#define OMAP_MCBSP_REG_XCERB 0x22 +#define OMAP_MCBSP_REG_PCR0 0x24 +#define OMAP_MCBSP_REG_RCERC 0x26 +#define OMAP_MCBSP_REG_RCERD 0x28 +#define OMAP_MCBSP_REG_XCERC 0x2A +#define OMAP_MCBSP_REG_XCERD 0x2C +#define OMAP_MCBSP_REG_RCERE 0x2E +#define OMAP_MCBSP_REG_RCERF 0x30 +#define OMAP_MCBSP_REG_XCERE 0x32 +#define OMAP_MCBSP_REG_XCERF 0x34 +#define OMAP_MCBSP_REG_RCERG 0x36 +#define OMAP_MCBSP_REG_RCERH 0x38 +#define OMAP_MCBSP_REG_XCERG 0x3A +#define OMAP_MCBSP_REG_XCERH 0x3C + +/* Dummy defines, these are not available on omap1 */ +#define OMAP_MCBSP_REG_XCCR 0x00 +#define OMAP_MCBSP_REG_RCCR 0x00 + +#else + +#define OMAP_MCBSP_REG_DRR2 0x00 +#define OMAP_MCBSP_REG_DRR1 0x04 +#define OMAP_MCBSP_REG_DXR2 0x08 +#define OMAP_MCBSP_REG_DXR1 0x0C +#define OMAP_MCBSP_REG_DRR 0x00 +#define OMAP_MCBSP_REG_DXR 0x08 +#define OMAP_MCBSP_REG_SPCR2 0x10 +#define OMAP_MCBSP_REG_SPCR1 0x14 +#define OMAP_MCBSP_REG_RCR2 0x18 +#define OMAP_MCBSP_REG_RCR1 0x1C +#define OMAP_MCBSP_REG_XCR2 0x20 +#define OMAP_MCBSP_REG_XCR1 0x24 +#define OMAP_MCBSP_REG_SRGR2 0x28 +#define OMAP_MCBSP_REG_SRGR1 0x2C +#define OMAP_MCBSP_REG_MCR2 0x30 +#define OMAP_MCBSP_REG_MCR1 0x34 +#define OMAP_MCBSP_REG_RCERA 0x38 +#define OMAP_MCBSP_REG_RCERB 0x3C +#define OMAP_MCBSP_REG_XCERA 0x40 +#define OMAP_MCBSP_REG_XCERB 0x44 +#define OMAP_MCBSP_REG_PCR0 0x48 +#define OMAP_MCBSP_REG_RCERC 0x4C +#define OMAP_MCBSP_REG_RCERD 0x50 +#define OMAP_MCBSP_REG_XCERC 0x54 +#define OMAP_MCBSP_REG_XCERD 0x58 +#define OMAP_MCBSP_REG_RCERE 0x5C +#define OMAP_MCBSP_REG_RCERF 0x60 +#define OMAP_MCBSP_REG_XCERE 0x64 +#define OMAP_MCBSP_REG_XCERF 0x68 +#define OMAP_MCBSP_REG_RCERG 0x6C +#define OMAP_MCBSP_REG_RCERH 0x70 +#define OMAP_MCBSP_REG_XCERG 0x74 +#define OMAP_MCBSP_REG_XCERH 0x78 +#define OMAP_MCBSP_REG_SYSCON 0x8C +#define OMAP_MCBSP_REG_THRSH2 0x90 +#define OMAP_MCBSP_REG_THRSH1 0x94 +#define OMAP_MCBSP_REG_IRQST 0xA0 +#define OMAP_MCBSP_REG_IRQEN 0xA4 +#define OMAP_MCBSP_REG_WAKEUPEN 0xA8 +#define OMAP_MCBSP_REG_XCCR 0xAC +#define OMAP_MCBSP_REG_RCCR 0xB0 +#define OMAP_MCBSP_REG_XBUFFSTAT 0xB4 +#define OMAP_MCBSP_REG_RBUFFSTAT 0xB8 +#define OMAP_MCBSP_REG_SSELCR 0xBC -/* OMAP3 sidetone control registers */ #define OMAP_ST_REG_REV 0x00 #define OMAP_ST_REG_SYSCONFIG 0x10 #define OMAP_ST_REG_IRQSTATUS 0x18 @@ -100,6 +147,8 @@ enum { #define OMAP_ST_REG_SFIRCR 0x28 #define OMAP_ST_REG_SSELCR 0x2C +#endif + /************************** McBSP SPCR1 bit definitions ***********************/ #define RRST 0x0001 #define RRDY 0x0002 @@ -284,6 +333,18 @@ struct omap_mcbsp_reg_cfg { }; typedef enum { + OMAP_MCBSP1 = 0, + OMAP_MCBSP2, + OMAP_MCBSP3, + OMAP_MCBSP4, + OMAP_MCBSP5 +} omap_mcbsp_id; + +typedef int __bitwise omap_mcbsp_io_type_t; +#define OMAP_MCBSP_IRQ_IO ((__force omap_mcbsp_io_type_t) 1) +#define OMAP_MCBSP_POLL_IO ((__force omap_mcbsp_io_type_t) 2) + +typedef enum { OMAP_MCBSP_WORD_8 = 0, OMAP_MCBSP_WORD_12, OMAP_MCBSP_WORD_16, @@ -292,24 +353,56 @@ typedef enum { OMAP_MCBSP_WORD_32, } omap_mcbsp_word_length; +typedef enum { + OMAP_MCBSP_CLK_RISING = 0, + OMAP_MCBSP_CLK_FALLING, +} omap_mcbsp_clk_polarity; + +typedef enum { + OMAP_MCBSP_FS_ACTIVE_HIGH = 0, + OMAP_MCBSP_FS_ACTIVE_LOW, +} omap_mcbsp_fs_polarity; + +typedef enum { + OMAP_MCBSP_CLK_STP_MODE_NO_DELAY = 0, + OMAP_MCBSP_CLK_STP_MODE_DELAY, +} omap_mcbsp_clk_stp_mode; + + +/******* SPI specific mode **********/ +typedef enum { + OMAP_MCBSP_SPI_MASTER = 0, + OMAP_MCBSP_SPI_SLAVE, +} omap_mcbsp_spi_mode; + +struct omap_mcbsp_spi_cfg { + omap_mcbsp_spi_mode spi_mode; + omap_mcbsp_clk_polarity rx_clock_polarity; + omap_mcbsp_clk_polarity tx_clock_polarity; + omap_mcbsp_fs_polarity fsx_polarity; + u8 clk_div; + omap_mcbsp_clk_stp_mode clk_stp_mode; + omap_mcbsp_word_length word_length; +}; + /* Platform specific configuration */ struct omap_mcbsp_ops { void (*request)(unsigned int); void (*free)(unsigned int); + int (*set_clks_src)(u8, u8); }; struct omap_mcbsp_platform_data { + unsigned long phys_base; + u8 dma_rx_sync, dma_tx_sync; + u16 rx_irq, tx_irq; struct omap_mcbsp_ops *ops; +#ifdef CONFIG_ARCH_OMAP3 + /* Sidetone block for McBSP 2 and 3 */ + unsigned long phys_base_st; +#endif u16 buffer_size; - u8 reg_size; - u8 reg_step; - - /* McBSP platform and instance specific features */ - bool has_wakeup; /* Wakeup capability */ - bool has_ccr; /* Transceiver has configuration control registers */ - int (*enable_st_clock)(unsigned int, bool); - int (*set_clk_src)(struct device *dev, struct clk *clk, const char *src); - int (*mux_signal)(struct device *dev, const char *signal, const char *src); + unsigned int mcbsp_config_type; }; struct omap_mcbsp_st_data { @@ -329,24 +422,38 @@ struct omap_mcbsp { void __iomem *io_base; u8 id; u8 free; + omap_mcbsp_word_length rx_word_length; + omap_mcbsp_word_length tx_word_length; + omap_mcbsp_io_type_t io_type; /* IRQ or poll */ + /* IRQ based TX/RX */ int rx_irq; int tx_irq; /* DMA stuff */ u8 dma_rx_sync; + short dma_rx_lch; u8 dma_tx_sync; + short dma_tx_lch; + + /* Completion queues */ + struct completion tx_irq_completion; + struct completion rx_irq_completion; + struct completion tx_dma_completion; + struct completion rx_dma_completion; /* Protect the field .free, while checking if the mcbsp is in use */ spinlock_t lock; struct omap_mcbsp_platform_data *pdata; struct clk *fclk; +#ifdef CONFIG_ARCH_OMAP3 struct omap_mcbsp_st_data *st_data; int dma_op_mode; u16 max_tx_thres; u16 max_rx_thres; +#endif void *reg_cache; - int reg_cache_size; + unsigned int mcbsp_config_type; }; /** @@ -358,10 +465,16 @@ struct omap_mcbsp_dev_attr { }; extern struct omap_mcbsp **mcbsp_ptr; -extern int omap_mcbsp_count; +extern int omap_mcbsp_count, omap_mcbsp_cache_size; + +#define omap_mcbsp_check_valid_id(id) (id < omap_mcbsp_count) +#define id_to_mcbsp_ptr(id) mcbsp_ptr[id]; int omap_mcbsp_init(void); +void omap_mcbsp_register_board_cfg(struct resource *res, int res_count, + struct omap_mcbsp_platform_data *config, int size); void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg * config); +#ifdef CONFIG_ARCH_OMAP3 void omap_mcbsp_set_tx_threshold(unsigned int id, u16 threshold); void omap_mcbsp_set_rx_threshold(unsigned int id, u16 threshold); u16 omap_mcbsp_get_max_tx_threshold(unsigned int id); @@ -370,13 +483,40 @@ u16 omap_mcbsp_get_fifo_size(unsigned int id); u16 omap_mcbsp_get_tx_delay(unsigned int id); u16 omap_mcbsp_get_rx_delay(unsigned int id); int omap_mcbsp_get_dma_op_mode(unsigned int id); +#else +static inline void omap_mcbsp_set_tx_threshold(unsigned int id, u16 threshold) +{ } +static inline void omap_mcbsp_set_rx_threshold(unsigned int id, u16 threshold) +{ } +static inline u16 omap_mcbsp_get_max_tx_threshold(unsigned int id) { return 0; } +static inline u16 omap_mcbsp_get_max_rx_threshold(unsigned int id) { return 0; } +static inline u16 omap_mcbsp_get_fifo_size(unsigned int id) { return 0; } +static inline u16 omap_mcbsp_get_tx_delay(unsigned int id) { return 0; } +static inline u16 omap_mcbsp_get_rx_delay(unsigned int id) { return 0; } +static inline int omap_mcbsp_get_dma_op_mode(unsigned int id) { return 0; } +#endif int omap_mcbsp_request(unsigned int id); void omap_mcbsp_free(unsigned int id); void omap_mcbsp_start(unsigned int id, int tx, int rx); void omap_mcbsp_stop(unsigned int id, int tx, int rx); +void omap_mcbsp_xmit_word(unsigned int id, u32 word); +u32 omap_mcbsp_recv_word(unsigned int id); + +int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer, unsigned int length); +int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer, unsigned int length); +int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word); +int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 * word); + /* McBSP functional clock source changing function */ extern int omap2_mcbsp_set_clks_src(u8 id, u8 fck_src_id); +/* SPI specific API */ +void omap_mcbsp_set_spi_mode(unsigned int id, const struct omap_mcbsp_spi_cfg * spi_cfg); + +/* Polled read/write functions */ +int omap_mcbsp_pollread(unsigned int id, u16 * buf); +int omap_mcbsp_pollwrite(unsigned int id, u16 buf); +int omap_mcbsp_set_io_type(unsigned int id, omap_mcbsp_io_type_t io_type); /* McBSP signal muxing API */ void omap2_mcbsp1_mux_clkr_src(u8 mux); @@ -385,11 +525,21 @@ void omap2_mcbsp1_mux_fsr_src(u8 mux); int omap_mcbsp_dma_ch_params(unsigned int id, unsigned int stream); int omap_mcbsp_dma_reg_params(unsigned int id, unsigned int stream); +#ifdef CONFIG_ARCH_OMAP3 /* Sidetone specific API */ int omap_st_set_chgain(unsigned int id, int channel, s16 chgain); int omap_st_get_chgain(unsigned int id, int channel, s16 *chgain); int omap_st_enable(unsigned int id); int omap_st_disable(unsigned int id); int omap_st_is_enabled(unsigned int id); +#else +static inline int omap_st_set_chgain(unsigned int id, int channel, + s16 chgain) { return 0; } +static inline int omap_st_get_chgain(unsigned int id, int channel, + s16 *chgain) { return 0; } +static inline int omap_st_enable(unsigned int id) { return 0; } +static inline int omap_st_disable(unsigned int id) { return 0; } +static inline int omap_st_is_enabled(unsigned int id) { return 0; } +#endif #endif |