feat: Add rfid feature and .gitignore file

include_lib/driver/cpu/br28/asm/spi.h

@@ -0,0 +1,77 @@
+#ifndef	_SPI_INTERFACE_H_
+#define _SPI_INTERFACE_H_
+#include "typedef.h"
+#include "generic/ioctl.h"
+
+
+/*enum spi_mode {
+    SPI_2WIRE_MODE,
+    SPI_ODD_MODE,
+    SPI_DUAL_MODE,
+    SPI_QUAD_MODE,
+};*/
+enum spi_mode {
+    SPI_MODE_BIDIR_1BIT,    //支持SPIx(x=0,1,2)，全双工，di接收，do发送
+    SPI_MODE_UNIDIR_1BIT,   //支持SPIx(x=0,1,2)，半双工，do分时发送/接收
+    SPI_MODE_UNIDIR_2BIT,   //支持SPIx(x=0)，半双工，di & do共2bit分时发送/接收
+    SPI_MODE_UNIDIR_4BIT,   //支持SPIx(x=0)，半双工，di & do & wp & hold 共4bit分时发送/接收
+};
+
+enum {
+    SPI0,
+    SPI1,
+    SPI2,
+    SPI_MAX_HW_NUM,
+};
+
+#define SPI_MAX_IO_GROUP            2
+
+struct spi_io {
+    u8 cs_pin;
+    u8 di_pin;
+    u8 do_pin;
+    u8 clk_pin;
+    u8 d2_pin;
+    u8 d3_pin;
+};
+
+struct spi_io_mapping {
+    u32 num;                                //可选端口数量
+    struct spi_io io[SPI_MAX_IO_GROUP];
+};
+
+enum spi_role {
+    SPI_ROLE_MASTER,
+    SPI_ROLE_SLAVE,
+};
+
+struct spi_platform_data {
+    u8 port[5];//CLK, DO, DI D2(wp) D3(hold)
+    u8 mode;  //模式，选项为enum spi_mode中的枚举常量
+    u8 role;  //角色，选项为enum spi_role中的枚举常量
+    u32 clk;  //波特率
+};
+
+extern const struct spi_platform_data spi1_p_data;
+extern const struct spi_platform_data spi2_p_data;
+
+typedef const int spi_dev;
+
+int spi_open(spi_dev spi);
+int spi_dma_recv(spi_dev spi, void *buf, u32 len);
+int spi_dma_send(spi_dev spi, const void *buf, u32 len);
+void spi_dma_set_addr_for_isr(spi_dev spi, void *buf, u32 len, u8 rw);
+void spi_set_ie(spi_dev spi, u8 en);
+u8 spi_get_pending(spi_dev spi);
+void spi_clear_pending(spi_dev spi);
+void spi_set_bit_mode(spi_dev spi, int mode);
+u8 spi_recv_byte(spi_dev spi, int *err);
+u8 spi_recv_byte_for_isr(spi_dev spi);
+int spi_send_byte(spi_dev spi, u8 byte);
+void spi_send_byte_for_isr(spi_dev spi, u8 byte);
+u8 spi_send_recv_byte(spi_dev spi, u8 byte, int *err);
+int spi_set_baud(spi_dev spi, u32 baud);
+u32 spi_get_baud(spi_dev spi);
+void spi_close(spi_dev spi);
+
+#endif