1 /* 2 * linux/include/asm-arm/arch-omap/gpio.h 3 * 4 * Defines for Multi-Channel Buffered Serial Port 5 * 6 * Copyright (C) 2002 RidgeRun, Inc. 7 * Author: Steve Johnson 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 * 23 */ 24 #ifndef __ASM_ARCH_OMAP_MCBSP_H 25 #define __ASM_ARCH_OMAP_MCBSP_H 26 27 #include <asm/hardware.h> 28 29 #define OMAP730_MCBSP1_BASE 0xfffb1000 30 #define OMAP730_MCBSP2_BASE 0xfffb1800 31 32 #define OMAP1510_MCBSP1_BASE 0xe1011800 33 #define OMAP1510_MCBSP2_BASE 0xfffb1000 34 #define OMAP1510_MCBSP3_BASE 0xe1017000 35 36 #define OMAP1610_MCBSP1_BASE 0xe1011800 37 #define OMAP1610_MCBSP2_BASE 0xfffb1000 38 #define OMAP1610_MCBSP3_BASE 0xe1017000 39 40 #define OMAP24XX_MCBSP1_BASE 0x48074000 41 #define OMAP24XX_MCBSP2_BASE 0x48076000 42 43 #if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP730) 44 45 #define OMAP_MCBSP_REG_DRR2 0x00 46 #define OMAP_MCBSP_REG_DRR1 0x02 47 #define OMAP_MCBSP_REG_DXR2 0x04 48 #define OMAP_MCBSP_REG_DXR1 0x06 49 #define OMAP_MCBSP_REG_SPCR2 0x08 50 #define OMAP_MCBSP_REG_SPCR1 0x0a 51 #define OMAP_MCBSP_REG_RCR2 0x0c 52 #define OMAP_MCBSP_REG_RCR1 0x0e 53 #define OMAP_MCBSP_REG_XCR2 0x10 54 #define OMAP_MCBSP_REG_XCR1 0x12 55 #define OMAP_MCBSP_REG_SRGR2 0x14 56 #define OMAP_MCBSP_REG_SRGR1 0x16 57 #define OMAP_MCBSP_REG_MCR2 0x18 58 #define OMAP_MCBSP_REG_MCR1 0x1a 59 #define OMAP_MCBSP_REG_RCERA 0x1c 60 #define OMAP_MCBSP_REG_RCERB 0x1e 61 #define OMAP_MCBSP_REG_XCERA 0x20 62 #define OMAP_MCBSP_REG_XCERB 0x22 63 #define OMAP_MCBSP_REG_PCR0 0x24 64 #define OMAP_MCBSP_REG_RCERC 0x26 65 #define OMAP_MCBSP_REG_RCERD 0x28 66 #define OMAP_MCBSP_REG_XCERC 0x2A 67 #define OMAP_MCBSP_REG_XCERD 0x2C 68 #define OMAP_MCBSP_REG_RCERE 0x2E 69 #define OMAP_MCBSP_REG_RCERF 0x30 70 #define OMAP_MCBSP_REG_XCERE 0x32 71 #define OMAP_MCBSP_REG_XCERF 0x34 72 #define OMAP_MCBSP_REG_RCERG 0x36 73 #define OMAP_MCBSP_REG_RCERH 0x38 74 #define OMAP_MCBSP_REG_XCERG 0x3A 75 #define OMAP_MCBSP_REG_XCERH 0x3C 76 77 #define OMAP_MAX_MCBSP_COUNT 3 78 79 #define AUDIO_MCBSP_DATAWRITE (OMAP1510_MCBSP1_BASE + OMAP_MCBSP_REG_DXR1) 80 #define AUDIO_MCBSP_DATAREAD (OMAP1510_MCBSP1_BASE + OMAP_MCBSP_REG_DRR1) 81 82 #define AUDIO_MCBSP OMAP_MCBSP1 83 #define AUDIO_DMA_TX OMAP_DMA_MCBSP1_TX 84 #define AUDIO_DMA_RX OMAP_DMA_MCBSP1_RX 85 86 #elif defined(CONFIG_ARCH_OMAP24XX) 87 88 #define OMAP_MCBSP_REG_DRR2 0x00 89 #define OMAP_MCBSP_REG_DRR1 0x04 90 #define OMAP_MCBSP_REG_DXR2 0x08 91 #define OMAP_MCBSP_REG_DXR1 0x0C 92 #define OMAP_MCBSP_REG_SPCR2 0x10 93 #define OMAP_MCBSP_REG_SPCR1 0x14 94 #define OMAP_MCBSP_REG_RCR2 0x18 95 #define OMAP_MCBSP_REG_RCR1 0x1C 96 #define OMAP_MCBSP_REG_XCR2 0x20 97 #define OMAP_MCBSP_REG_XCR1 0x24 98 #define OMAP_MCBSP_REG_SRGR2 0x28 99 #define OMAP_MCBSP_REG_SRGR1 0x2C 100 #define OMAP_MCBSP_REG_MCR2 0x30 101 #define OMAP_MCBSP_REG_MCR1 0x34 102 #define OMAP_MCBSP_REG_RCERA 0x38 103 #define OMAP_MCBSP_REG_RCERB 0x3C 104 #define OMAP_MCBSP_REG_XCERA 0x40 105 #define OMAP_MCBSP_REG_XCERB 0x44 106 #define OMAP_MCBSP_REG_PCR0 0x48 107 #define OMAP_MCBSP_REG_RCERC 0x4C 108 #define OMAP_MCBSP_REG_RCERD 0x50 109 #define OMAP_MCBSP_REG_XCERC 0x54 110 #define OMAP_MCBSP_REG_XCERD 0x58 111 #define OMAP_MCBSP_REG_RCERE 0x5C 112 #define OMAP_MCBSP_REG_RCERF 0x60 113 #define OMAP_MCBSP_REG_XCERE 0x64 114 #define OMAP_MCBSP_REG_XCERF 0x68 115 #define OMAP_MCBSP_REG_RCERG 0x6C 116 #define OMAP_MCBSP_REG_RCERH 0x70 117 #define OMAP_MCBSP_REG_XCERG 0x74 118 #define OMAP_MCBSP_REG_XCERH 0x78 119 120 #define OMAP_MAX_MCBSP_COUNT 2 121 122 #define AUDIO_MCBSP_DATAWRITE (OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DXR1) 123 #define AUDIO_MCBSP_DATAREAD (OMAP24XX_MCBSP2_BASE + OMAP_MCBSP_REG_DRR1) 124 125 #define AUDIO_MCBSP OMAP_MCBSP2 126 #define AUDIO_DMA_TX OMAP24XX_DMA_MCBSP2_TX 127 #define AUDIO_DMA_RX OMAP24XX_DMA_MCBSP2_RX 128 129 #endif 130 131 #define OMAP_MCBSP_READ(base, reg) __raw_readw((base) + OMAP_MCBSP_REG_##reg) 132 #define OMAP_MCBSP_WRITE(base, reg, val) __raw_writew((val), (base) + OMAP_MCBSP_REG_##reg) 133 134 135 /************************** McBSP SPCR1 bit definitions ***********************/ 136 #define RRST 0x0001 137 #define RRDY 0x0002 138 #define RFULL 0x0004 139 #define RSYNC_ERR 0x0008 140 #define RINTM(value) ((value)<<4) /* bits 4:5 */ 141 #define ABIS 0x0040 142 #define DXENA 0x0080 143 #define CLKSTP(value) ((value)<<11) /* bits 11:12 */ 144 #define RJUST(value) ((value)<<13) /* bits 13:14 */ 145 #define DLB 0x8000 146 147 /************************** McBSP SPCR2 bit definitions ***********************/ 148 #define XRST 0x0001 149 #define XRDY 0x0002 150 #define XEMPTY 0x0004 151 #define XSYNC_ERR 0x0008 152 #define XINTM(value) ((value)<<4) /* bits 4:5 */ 153 #define GRST 0x0040 154 #define FRST 0x0080 155 #define SOFT 0x0100 156 #define FREE 0x0200 157 158 /************************** McBSP PCR bit definitions *************************/ 159 #define CLKRP 0x0001 160 #define CLKXP 0x0002 161 #define FSRP 0x0004 162 #define FSXP 0x0008 163 #define DR_STAT 0x0010 164 #define DX_STAT 0x0020 165 #define CLKS_STAT 0x0040 166 #define SCLKME 0x0080 167 #define CLKRM 0x0100 168 #define CLKXM 0x0200 169 #define FSRM 0x0400 170 #define FSXM 0x0800 171 #define RIOEN 0x1000 172 #define XIOEN 0x2000 173 #define IDLE_EN 0x4000 174 175 /************************** McBSP RCR1 bit definitions ************************/ 176 #define RWDLEN1(value) ((value)<<5) /* Bits 5:7 */ 177 #define RFRLEN1(value) ((value)<<8) /* Bits 8:14 */ 178 179 /************************** McBSP XCR1 bit definitions ************************/ 180 #define XWDLEN1(value) ((value)<<5) /* Bits 5:7 */ 181 #define XFRLEN1(value) ((value)<<8) /* Bits 8:14 */ 182 183 /*************************** McBSP RCR2 bit definitions ***********************/ 184 #define RDATDLY(value) (value) /* Bits 0:1 */ 185 #define RFIG 0x0004 186 #define RCOMPAND(value) ((value)<<3) /* Bits 3:4 */ 187 #define RWDLEN2(value) ((value)<<5) /* Bits 5:7 */ 188 #define RFRLEN2(value) ((value)<<8) /* Bits 8:14 */ 189 #define RPHASE 0x8000 190 191 /*************************** McBSP XCR2 bit definitions ***********************/ 192 #define XDATDLY(value) (value) /* Bits 0:1 */ 193 #define XFIG 0x0004 194 #define XCOMPAND(value) ((value)<<3) /* Bits 3:4 */ 195 #define XWDLEN2(value) ((value)<<5) /* Bits 5:7 */ 196 #define XFRLEN2(value) ((value)<<8) /* Bits 8:14 */ 197 #define XPHASE 0x8000 198 199 /************************* McBSP SRGR1 bit definitions ************************/ 200 #define CLKGDV(value) (value) /* Bits 0:7 */ 201 #define FWID(value) ((value)<<8) /* Bits 8:15 */ 202 203 /************************* McBSP SRGR2 bit definitions ************************/ 204 #define FPER(value) (value) /* Bits 0:11 */ 205 #define FSGM 0x1000 206 #define CLKSM 0x2000 207 #define CLKSP 0x4000 208 #define GSYNC 0x8000 209 210 /************************* McBSP MCR1 bit definitions *************************/ 211 #define RMCM 0x0001 212 #define RCBLK(value) ((value)<<2) /* Bits 2:4 */ 213 #define RPABLK(value) ((value)<<5) /* Bits 5:6 */ 214 #define RPBBLK(value) ((value)<<7) /* Bits 7:8 */ 215 216 /************************* McBSP MCR2 bit definitions *************************/ 217 #define XMCM(value) (value) /* Bits 0:1 */ 218 #define XCBLK(value) ((value)<<2) /* Bits 2:4 */ 219 #define XPABLK(value) ((value)<<5) /* Bits 5:6 */ 220 #define XPBBLK(value) ((value)<<7) /* Bits 7:8 */ 221 222 223 /* we don't do multichannel for now */ 224 struct omap_mcbsp_reg_cfg { 225 u16 spcr2; 226 u16 spcr1; 227 u16 rcr2; 228 u16 rcr1; 229 u16 xcr2; 230 u16 xcr1; 231 u16 srgr2; 232 u16 srgr1; 233 u16 mcr2; 234 u16 mcr1; 235 u16 pcr0; 236 u16 rcerc; 237 u16 rcerd; 238 u16 xcerc; 239 u16 xcerd; 240 u16 rcere; 241 u16 rcerf; 242 u16 xcere; 243 u16 xcerf; 244 u16 rcerg; 245 u16 rcerh; 246 u16 xcerg; 247 u16 xcerh; 248 }; 249 250 typedef enum { 251 OMAP_MCBSP1 = 0, 252 OMAP_MCBSP2, 253 OMAP_MCBSP3, 254 } omap_mcbsp_id; 255 256 typedef int __bitwise omap_mcbsp_io_type_t; 257 #define OMAP_MCBSP_IRQ_IO ((__force omap_mcbsp_io_type_t) 1) 258 #define OMAP_MCBSP_POLL_IO ((__force omap_mcbsp_io_type_t) 2) 259 260 typedef enum { 261 OMAP_MCBSP_WORD_8 = 0, 262 OMAP_MCBSP_WORD_12, 263 OMAP_MCBSP_WORD_16, 264 OMAP_MCBSP_WORD_20, 265 OMAP_MCBSP_WORD_24, 266 OMAP_MCBSP_WORD_32, 267 } omap_mcbsp_word_length; 268 269 typedef enum { 270 OMAP_MCBSP_CLK_RISING = 0, 271 OMAP_MCBSP_CLK_FALLING, 272 } omap_mcbsp_clk_polarity; 273 274 typedef enum { 275 OMAP_MCBSP_FS_ACTIVE_HIGH = 0, 276 OMAP_MCBSP_FS_ACTIVE_LOW, 277 } omap_mcbsp_fs_polarity; 278 279 typedef enum { 280 OMAP_MCBSP_CLK_STP_MODE_NO_DELAY = 0, 281 OMAP_MCBSP_CLK_STP_MODE_DELAY, 282 } omap_mcbsp_clk_stp_mode; 283 284 285 /******* SPI specific mode **********/ 286 typedef enum { 287 OMAP_MCBSP_SPI_MASTER = 0, 288 OMAP_MCBSP_SPI_SLAVE, 289 } omap_mcbsp_spi_mode; 290 291 struct omap_mcbsp_spi_cfg { 292 omap_mcbsp_spi_mode spi_mode; 293 omap_mcbsp_clk_polarity rx_clock_polarity; 294 omap_mcbsp_clk_polarity tx_clock_polarity; 295 omap_mcbsp_fs_polarity fsx_polarity; 296 u8 clk_div; 297 omap_mcbsp_clk_stp_mode clk_stp_mode; 298 omap_mcbsp_word_length word_length; 299 }; 300 301 void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg * config); 302 int omap_mcbsp_request(unsigned int id); 303 void omap_mcbsp_free(unsigned int id); 304 void omap_mcbsp_start(unsigned int id); 305 void omap_mcbsp_stop(unsigned int id); 306 void omap_mcbsp_xmit_word(unsigned int id, u32 word); 307 u32 omap_mcbsp_recv_word(unsigned int id); 308 309 int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer, unsigned int length); 310 int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer, unsigned int length); 311 int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word); 312 int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 * word); 313 314 315 /* SPI specific API */ 316 void omap_mcbsp_set_spi_mode(unsigned int id, const struct omap_mcbsp_spi_cfg * spi_cfg); 317 318 /* Polled read/write functions */ 319 int omap_mcbsp_pollread(unsigned int id, u16 * buf); 320 int omap_mcbsp_pollwrite(unsigned int id, u16 buf); 321 322 #endif 323