/*
- * linux/include/asm-arm/arch-omap/gpio.h
+ * linux/include/asm-arm/arch-omap/mcbsp.h
*
* Defines for Multi-Channel Buffered Serial Port
*
#ifndef __ASM_ARCH_OMAP_MCBSP_H
#define __ASM_ARCH_OMAP_MCBSP_H
+#include <linux/completion.h>
+#include <linux/spinlock.h>
+
#include <asm/hardware.h>
+#include <asm/arch/clock.h>
#define OMAP730_MCBSP1_BASE 0xfffb1000
#define OMAP730_MCBSP2_BASE 0xfffb1800
#define OMAP1610_MCBSP2_BASE 0xfffb1000
#define OMAP1610_MCBSP3_BASE 0xe1017000
+#define OMAP24XX_MCBSP1_BASE 0x48074000
+#define OMAP24XX_MCBSP2_BASE 0x48076000
+
+#define OMAP34XX_MCBSP1_BASE 0x48074000
+#define OMAP34XX_MCBSP2_BASE 0x49022000
+
+#if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP730)
+
#define OMAP_MCBSP_REG_DRR2 0x00
#define OMAP_MCBSP_REG_DRR1 0x02
#define OMAP_MCBSP_REG_DXR2 0x04
#define OMAP_MCBSP_REG_XCERG 0x3A
#define OMAP_MCBSP_REG_XCERH 0x3C
-#define OMAP_MAX_MCBSP_COUNT 3
+#define OMAP_MAX_MCBSP_COUNT 3
+#define MAX_MCBSP_CLOCKS 3
+
+#define AUDIO_MCBSP_DATAWRITE (OMAP1510_MCBSP1_BASE + OMAP_MCBSP_REG_DXR1)
+#define AUDIO_MCBSP_DATAREAD (OMAP1510_MCBSP1_BASE + OMAP_MCBSP_REG_DRR1)
+
+#define AUDIO_MCBSP OMAP_MCBSP1
+#define AUDIO_DMA_TX OMAP_DMA_MCBSP1_TX
+#define AUDIO_DMA_RX OMAP_DMA_MCBSP1_RX
+
+#elif defined(CONFIG_ARCH_OMAP24XX)
+
+#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_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_MAX_MCBSP_COUNT 2
+#define MAX_MCBSP_CLOCKS 2
+
+#define AUDIO_MCBSP_DATAWRITE (OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DXR1)
+#define AUDIO_MCBSP_DATAREAD (OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DRR1)
+
+#define AUDIO_MCBSP OMAP_MCBSP2
+#define AUDIO_DMA_TX OMAP24XX_DMA_MCBSP2_TX
+#define AUDIO_DMA_RX OMAP24XX_DMA_MCBSP2_RX
+
+#endif
#define OMAP_MCBSP_READ(base, reg) __raw_readw((base) + OMAP_MCBSP_REG_##reg)
#define OMAP_MCBSP_WRITE(base, reg, val) __raw_writew((val), (base) + OMAP_MCBSP_REG_##reg)
+
/************************** McBSP SPCR1 bit definitions ***********************/
#define RRST 0x0001
#define RRDY 0x0002
OMAP_MCBSP3,
} 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_length word_length;
};
+/* Platform specific configuration */
+struct omap_mcbsp_ops {
+ void (*request)(unsigned int);
+ void (*free)(unsigned int);
+ int (*check)(unsigned int);
+};
+
+struct omap_mcbsp_platform_data {
+ u32 virt_base;
+ u8 dma_rx_sync, dma_tx_sync;
+ u16 rx_irq, tx_irq;
+ struct omap_mcbsp_ops *ops;
+ char const *clk_name;
+};
+
+struct omap_mcbsp {
+ struct device *dev;
+ u32 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 *clk;
+};
+
+int omap_mcbsp_init(void);
+void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
+ int size);
void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg * config);
int omap_mcbsp_request(unsigned int id);
void omap_mcbsp_free(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);
+
/* SPI specific API */
void omap_mcbsp_set_spi_mode(unsigned int id, const struct omap_mcbsp_spi_cfg * spi_cfg);
projects / cascardo / linux.git / blobdiff