| /* ssp.h |
| |
| 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__ */ |
