Edit File: ti_ssp.h
/* * Sequencer Serial Port (SSP) driver for Texas Instruments' SoCs * * Copyright (C) 2010 Texas Instruments Inc * * 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 __TI_SSP_H__ #define __TI_SSP_H__ struct ti_ssp_dev_data { const char *dev_name; void *pdata; size_t pdata_size; }; struct ti_ssp_data { unsigned long out_clock; struct ti_ssp_dev_data dev_data[2]; }; struct ti_ssp_spi_data { unsigned long iosel; int num_cs; void (*select)(int cs); }; /* * Sequencer port IO pin configuration bits. These do not correlate 1-1 with * the hardware. The iosel field in the port data combines iosel1 and iosel2, * and is therefore not a direct map to register space. It is best to use the * macros below to construct iosel values. * * least significant 16 bits --> iosel1 * most significant 16 bits --> iosel2 */ #define SSP_IN 0x0000 #define SSP_DATA 0x0001 #define SSP_CLOCK 0x0002 #define SSP_CHIPSEL 0x0003 #define SSP_OUT 0x0004 #define SSP_PIN_SEL(pin, v) ((v) << ((pin) * 3)) #define SSP_PIN_MASK(pin) SSP_PIN_SEL(pin, 0x7) #define SSP_INPUT_SEL(pin) ((pin) << 16) /* Sequencer port config bits */ #define SSP_EARLY_DIN BIT(8) #define SSP_DELAY_DOUT BIT(9) /* Sequence map definitions */ #define SSP_CLK_HIGH BIT(0) #define SSP_CLK_LOW 0 #define SSP_DATA_HIGH BIT(1) #define SSP_DATA_LOW 0 #define SSP_CS_HIGH BIT(2) #define SSP_CS_LOW 0 #define SSP_OUT_MODE BIT(3) #define SSP_IN_MODE 0 #define SSP_DATA_REG BIT(4) #define SSP_ADDR_REG 0 #define SSP_OPCODE_DIRECT ((0x0) << 5) #define SSP_OPCODE_TOGGLE ((0x1) << 5) #define SSP_OPCODE_SHIFT ((0x2) << 5) #define SSP_OPCODE_BRANCH0 ((0x4) << 5) #define SSP_OPCODE_BRANCH1 ((0x5) << 5) #define SSP_OPCODE_BRANCH ((0x6) << 5) #define SSP_OPCODE_STOP ((0x7) << 5) #define SSP_BRANCH(addr) ((addr) << 8) #define SSP_COUNT(cycles) ((cycles) << 8) int ti_ssp_raw_read(struct device *dev); int ti_ssp_raw_write(struct device *dev, u32 val); int ti_ssp_load(struct device *dev, int offs, u32* prog, int len); int ti_ssp_run(struct device *dev, u32 pc, u32 input, u32 *output); int ti_ssp_set_mode(struct device *dev, int mode); int ti_ssp_set_iosel(struct device *dev, u32 iosel); #endif /* __TI_SSP_H__ */