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/
usr/
src/
linux-headers-3.0.0-14/
include/
linux/
mfd/
- drwxr-xr-x
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Viewing file:  ti_ssp.h (2.82 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
/*
* 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__ */
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