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ax99100_spi.h
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ax99100_spi.h
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/*
* linux/drivers/serial/99xx.h
*
* Based on drivers/serial/8250.c by Russell King.
*
* 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 code is modified to support ASIX 99100 series serial devices
*/
/*
*
* Register (I/O mapped)
*
*/
#define REG_SPICMR 0x000
#define SPICMR_SSP (1 << 0)
#define SPICMR_CPHA (1 << 1)
#define SPICMR_CPOL (1 << 2)
#define SPICMR_LSB (1 << 3)
#define SPICMR_SPIMEN (1 << 4)
#define SPICMR_ASS (1 << 5)
#define SPICMR_SWE (1 << 6)
#define SPICMR_SSOE (1 << 7)
#define REG_SPICSS 0x001
#define REG_SPIBRR 0x004
#define REG_SPIDS 0x005
#define REG_SPIDT 0x006
#define REG_SDAOF 0x007
#define REG_STOF0 0x008
#define REG_STOF1 0x009
#define REG_STOF2 0x00A
#define REG_STOF3 0x00B
#define REG_STOF4 0x00C
#define REG_STOF5 0x00D
#define REG_STOF6 0x00E
#define REG_STOF7 0x00F
#define REG_SDFL0 0x010
#define REG_SDFL1 0x011
#define REG_SPISSOL 0x012
#define REG_SDCR 0x013
#define INTERRUPT_ENABLE_MASK 0xC0
#define REG_SPIMISR 0x014
#define INTERRUPT_MASK 0x003
#define SPIMISR_STC (1 << 0)
#define SPIMISR_STERR (1 << 1)
/*
*
* Register (MEM mapped)
*
*/
/* SPI Common Reg. */
#define REG_SWRST 0x238
#define SW_RESET (1 << 0)
/* TX DMA */
#define REG_TDMASAR0 0x080
#define REG_TDMASAR1 0x084
#define REG_TDMALR 0x088
#define REG_TDMASTAR 0x08C
#define START_DMA (1 << 0)
#define REG_TDMASTPR 0x090
#define REG_TDMASR 0x094
#define REG_TBNTS 0x098
/* RX DMA */
#define REG_RDMASAR0 0x100
#define REG_RDMASAR1 0x104
#define REG_RDMALR 0x108
#define REG_RDMASTAR 0x10C
#define REG_RDMASTPR 0x110
#define REG_RDMASR 0x114
#define REG_RBNTS 0x118
/*
*
* DMA setting
*
*/
#define DMA_ABORT (1 << 0)
#define DMA_START (1 << 0)
#define DMA_BUFFER_SZ 65535
#define PCI_SUBVEN_ID_AX99100_SPI 0x6000
#define OFFSET_EEPORM 0x0C8
#define FL_BASE5 0x0005
#if defined(__i386__) && (defined(CONFIG_M386) || defined(CONFIG_M486))
#define _INLINE_ inline
#else
#define _INLINE_
#endif
#define DEFAULT99100_BAUD 115200
/* Device */
#define DEV_NAME "ax99100"
#define CLASS_NAME "spidev"
#define NODE_NAME "spi"
/* Netlink */
#define NETLINK_TEST 17
#define MAX_PAYLOAD_SIZE 1024
int spi99100_init(void);
void spi99100_exit(void);