diff options
Diffstat (limited to 'include/asm-arm/arch-lh7a40x/ssp.h')
| -rw-r--r-- | include/asm-arm/arch-lh7a40x/ssp.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/include/asm-arm/arch-lh7a40x/ssp.h b/include/asm-arm/arch-lh7a40x/ssp.h new file mode 100644 index 00000000000..132b1c4d5ce --- /dev/null +++ b/include/asm-arm/arch-lh7a40x/ssp.h @@ -0,0 +1,71 @@ +/* ssp.h + $Id$ + + written by Marc Singer + 6 Dec 2004 + + Copyright (C) 2004 Marc Singer + + ----------- + DESCRIPTION + ----------- + + This SSP header is available throughout the kernel, for this + machine/architecture, because drivers that use it may be dispersed. + + This file was cloned from the 7952x implementation. It would be + better to share them, but we're taking an easier approach for the + time being. + +*/ + +#if !defined (__SSP_H__) +# define __SSP_H__ + +/* ----- Includes */ + +/* ----- Types */ + +struct ssp_driver { + int (*init) (void); + void (*exit) (void); + void (*acquire) (void); + void (*release) (void); + int (*configure) (int device, int mode, int speed, + int frame_size_write, int frame_size_read); + void (*chip_select) (int enable); + void (*set_callbacks) (void* handle, + irqreturn_t (*callback_tx)(void*), + irqreturn_t (*callback_rx)(void*)); + void (*enable) (void); + void (*disable) (void); +// int (*save_state) (void*); +// void (*restore_state) (void*); + int (*read) (void); + int (*write) (u16 data); + int (*write_read) (u16 data); + void (*flush) (void); + void (*write_async) (void* pv, size_t cb); + size_t (*write_pos) (void); +}; + + /* These modes are only available on the LH79524 */ +#define SSP_MODE_SPI (1) +#define SSP_MODE_SSI (2) +#define SSP_MODE_MICROWIRE (3) +#define SSP_MODE_I2S (4) + + /* CPLD SPI devices */ +#define DEVICE_EEPROM 0 /* Configuration eeprom */ +#define DEVICE_MAC 1 /* MAC eeprom (LPD79524) */ +#define DEVICE_CODEC 2 /* Audio codec */ +#define DEVICE_TOUCH 3 /* Touch screen (LPD79520) */ + +/* ----- Globals */ + +/* ----- Prototypes */ + +//extern struct ssp_driver lh79520_i2s_driver; +extern struct ssp_driver lh7a400_cpld_ssp_driver; + +#endif /* __SSP_H__ */ |