/* * arch/arm/plat-omap/include/mach/mcbsp.h * * Defines for Multi-Channel Buffered Serial Port * * Copyright (C) 2002 RidgeRun, Inc. * Author: Steve Johnson * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #ifndef __ASM_ARCH_OMAP_MCBSP_H #define __ASM_ARCH_OMAP_MCBSP_H #include #include #include #include #define OMAP730_MCBSP1_BASE 0xfffb1000 #define OMAP730_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 #define OMAP24XX_MCBSP1_BASE 0x48074000 #define OMAP24XX_MCBSP2_BASE 0x48076000 #define OMAP2430_MCBSP3_BASE 0x4808c000 #define OMAP2430_MCBSP4_BASE 0x4808e000 #define OMAP2430_MCBSP5_BASE 0x48096000 #define OMAP34XX_MCBSP1_BASE 0x48074000 #define OMAP34XX_MCBSP2_BASE 0x49022000 #define OMAP34XX_MCBSP3_BASE 0x49024000 #define OMAP34XX_MCBSP4_BASE 0x49026000 #define OMAP34XX_MCBSP5_BASE 0x48096000 #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_DXR1 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 #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) || defined(CONFIG_ARCH_OMAP34XX) #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_XCCR 0xAC #define OMAP_MCBSP_REG_RCCR 0xB0 #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 /************************** McBSP SPCR1 bit definitions ***********************/ #define RRST 0x0001 #define RRDY 0x0002 #define RFULL 0x0004 #define RSYNC_ERR 0x0008 #define RINTM(value) ((value)<<4) /* bits 4:5 */ #define ABIS 0x0040 #define DXENA 0x0080 #define CLKSTP(value) ((value)<<11) /* bits 11:12 */ #define RJUST(value) ((value)<<13) /* bits 13:14 */ #define ALB 0x8000 #define DLB 0x8000 /************************** McBSP SPCR2 bit definitions ***********************/ #define XRST 0x0001 #define XRDY 0x0002 #define XEMPTY 0x0004 #define XSYNC_ERR 0x0008 #define XINTM(value) ((value)<<4) /* bits 4:5 */ #define GRST 0x0040 #define FRST 0x0080 #define SOFT 0x0100 #define FREE 0x0200 /************************** McBSP PCR bit definitions *************************/ #define CLKRP 0x0001 #define CLKXP 0x0002 #define FSRP 0x0004 #define FSXP 0x0008 #define DR_STAT 0x0010 #define DX_STAT 0x0020 #define CLKS_STAT 0x0040 #define SCLKME 0x0080 #define CLKRM 0x0100 #define CLKXM 0x0200 #define FSRM 0x0400 #define FSXM 0x0800 #define RIOEN 0x1000 #define XIOEN 0x2000 #define IDLE_EN 0x4000 /************************** McBSP RCR1 bit definitions ************************/ #define RWDLEN1(value) ((value)<<5) /* Bits 5:7 */ #define RFRLEN1(value) ((value)<<8) /* Bits 8:14 */ /************************** McBSP XCR1 bit definitions ************************/ #define XWDLEN1(value) ((value)<<5) /* Bits 5:7 */ #define XFRLEN1(value) ((value)<<8) /* Bits 8:14 */ /*************************** McBSP RCR2 bit definitions ***********************/ #define RDATDLY(value) (value) /* Bits 0:1 */ #define RFIG 0x0004 #define RCOMPAND(value) ((value)<<3) /* Bits 3:4 */ #define RWDLEN2(value) ((value)<<5) /* Bits 5:7 */ #define RFRLEN2(value) ((value)<<8) /* Bits 8:14 */ #define RPHASE 0x8000 /*************************** McBSP XCR2 bit definitions ***********************/ #define XDATDLY(value) (value) /* Bits 0:1 */ #define XFIG 0x0004 #define XCOMPAND(value) ((value)<<3) /* Bits 3:4 */ #define XWDLEN2(value) ((value)<<5) /* Bits 5:7 */ #define XFRLEN2(value) ((value)<<8) /* Bits 8:14 */ #define XPHASE 0x8000 /************************* McBSP SRGR1 bit definitions ************************/ #define CLKGDV(value) (value) /* Bits 0:7 */ #define FWID(value) ((value)<<8) /* Bits 8:15 */ /************************* McBSP SRGR2 bit definitions ************************/ #define FPER(value) (value) /* Bits 0:11 */ #define FSGM 0x1000 #define CLKSM 0x2000 #define CLKSP 0x4000 #define GSYNC 0x8000 /************************* McBSP MCR1 bit definitions *************************/ #define RMCM 0x0001 #define RCBLK(value) ((value)<<2) /* Bits 2:4 */ #define RPABLK(value) ((value)<<5) /* Bits 5:6 */ #define RPBBLK(value) ((value)<<7) /* Bits 7:8 */ /************************* McBSP MCR2 bit definitions *************************/ #define XMCM(value) (value) /* Bits 0:1 */ #define XCBLK(value) ((value)<<2) /* Bits 2:4 */ #define XPABLK(value) ((value)<<5) /* Bits 5:6 */ #define XPBBLK(value) ((value)<<7) /* Bits 7:8 */ /*********************** McBSP XCCR bit definitions *************************/ #define EXTCLKGATE 0x8000 #define PPCONNECT 0x4000 #define DXENDLY(value) ((value)<<12) /* Bits 12:13 */ #define XFULL_CYCLE 0x0800 #define DILB 0x0020 #define XDMAEN 0x0008 #define XDISABLE 0x0001 /********************** McBSP RCCR bit definitions *************************/ #define RFULL_CYCLE 0x0800 #define RDMAEN 0x0008 #define RDISABLE 0x0001 /********************** McBSP SYSCONFIG bit definitions ********************/ #define SOFTRST 0x0002 /* we don't do multichannel for now */ struct omap_mcbsp_reg_cfg { u16 spcr2; u16 spcr1; u16 rcr2; u16 rcr1; u16 xcr2; u16 xcr1; u16 srgr2; u16 srgr1; u16 mcr2; u16 mcr1; u16 pcr0; u16 rcerc; u16 rcerd; u16 xcerc; u16 xcerd; u16 rcere; u16 rcerf; u16 xcere; u16 xcerf; u16 rcerg; u16 rcerh; u16 xcerg; u16 xcerh; u16 xccr; u16 rccr; }; 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, OMAP_MCBSP_WORD_20, OMAP_MCBSP_WORD_24, 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); }; 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_OMAP34XX u16 buffer_size; #endif }; struct omap_mcbsp { struct device *dev; unsigned long phys_base; 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 *iclk; struct clk *fclk; #ifdef CONFIG_ARCH_OMAP34XX u16 max_tx_thres; u16 max_rx_thres; #endif }; extern struct omap_mcbsp **mcbsp_ptr; extern int omap_mcbsp_count; 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); #ifdef CONFIG_ARCH_OMAP34XX 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); u16 omap_mcbsp_get_max_rx_threshold(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; } #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_enable(unsigned int id, u8 enable); void omap_mcbsp_recv_enable(unsigned int id, u8 enable); 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); /* 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); #endif