ssf.h

/************************************************************************
 * \brief Simple SSF driver.
 *
 * \author Juan Antonio Ruiz (PaCHoN)
 * \date   2024
 * \defgroup SSF SSF
 * \brief
 *      USB IO
 *        0xA130E2 [........ DDDDDDDD] read/write
 *        D data bits
 * 
 *      IO status
 *        0xA130E4 [.C...... .....RWS] read only
 *        S SPI controller ready. Not used on WIFI.
 *        W USB fifo ready to write
 *        R USB fifo ready to read
 *        C SD card type. 0=SD, 1=SDHC. Not used on WIFI.
*************************************** */
#ifndef _SSF_H_
#define _SSF_H
 
#include "types.h"
 
//#define SSF_CTRL_P 0x8000 //register accesss protection bit. should be set, otherwise register will ignore any attempts to write
//#define SSF_CTRL_X 0x4000 //32x mode
//#define SSF_CTRL_W 0x2000 //ROM memory write protection
//#define SSF_CTRL_L 0x1000 //led
 
//#define USB_RD_BUSY while ((REG_STE & STE_USB_RD_RDY) == 0)
//#define USB_WR_BUSY while ((REG_STE & STE_USB_WR_RDY) == 0)
/**************************************** */
 

#define UART_BASE               0xA13000

#define UART_TX_FIFO_LEN                1

#define UART_DATA                 (*((volatile u16*)(UART_BASE +  226)))
#define UART_STE                  (*((volatile u16*)(UART_BASE +  228)))
#define UART_REG_CFG          (*((volatile u16*)(UART_BASE +  230)))
#define UART_REG_SSF_CTRL     (*((volatile u16*)(UART_BASE +  240)))
 
#define SSF_CTRL_P 0x8000 //register accesss protection bit. should be set, otherwise register will ignore any attempts to write
#define SSF_CTRL_X 0x4000 //32x mode
#define SSF_CTRL_W 0x2000 //ROM memory write protection
#define SSF_CTRL_L 0x1000 //led
 
#define UART_SPR UART_DATA
 
#define UART_STE_WR_RDY 2//usb write ready bit
#define UART_STE_RD_RDY 4//usb read ready bit
 
//spi chip select signal
#define CFG_SPI_SS 1
#define CFG_SPI_QRD 6
#define CFG_SPI_QWR 2
 
/************************************************************************/
void uart_init(void);
 
/************************************************************************/
#define uart_tx_ready() (UART_STE & UART_STE_WR_RDY)
 
/************************************************************************/
#define uart_rx_ready() (UART_STE & UART_STE_RD_RDY)
 
/************************************************************************/
#define uart_putc(c)            do{UART_DATA = (c);}while(0);
 
/************************************************************************/
#define uart_getc()             (UART_DATA)
 
/************************************************************************/
#define uart_set(reg, val)      while(0);
 
/************************************************************************/
#define uart_get(reg)           while(0);
 
/************************************************************************/
#define uart_set_bits(reg, val) while(0)
 
/************************************************************************/
#define uart_clr_bits(reg, val) while(0)
 
/************************************************************************/
#define uart_test(reg, val) while(0)
 
/************************************************************************/
#define uart_reset_fifos()      while(0)
 
void ssf_set_rom_bank(u8 bank, u8 val);
 
#endif /*_SSF_H_*/