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#ifndef _OPENPCD_PROTO_H
#define _OPENPCD_PROTO_H
/* This header file describes the USB protocol of the OpenPCD RFID reader */
#include <sys/types.h>
struct openpcd_hdr {
u_int8_t cmd; /* command. high nibble: class, low nibble: cmd */
u_int8_t flags;
u_int8_t reg; /* register */
u_int8_t val; /* value (in case of write *) */
u_int8_t data[0];
} __attribute__ ((packed));
#define OPENPC_FLAG_RESPOND 0x01 /* Response requested */
enum openpcd_cmd_class {
/* PCD (reader) side */
OPENPCD_CMD_CLS_RC632 = 0x1,
OPENPCD_CMD_CLS_LED = 0x2,
OPENPCD_CMD_CLS_SSC = 0x3,
OPENPCD_CMD_CLS_PWM = 0x4,
OPENPCD_CMD_CLS_ADC = 0x5,
/* PICC (transponder) side */
OPENPCD_CMD_CLS_PICC = 0xe,
OPENPCD_CMD_CLS_USBTEST = 0xf,
};
#define OPENPCD_REG_MAX 0x3f
#define OPENPCD_CMD_CLS(x) (x >> 4)
#define OPENPCD_CMD(x) (x & 0xf)
#define OPENPCD_CLS2CMD(x) (x << 4)
/* CMD_CLS_RC632 */
#define OPENPCD_CMD_WRITE_REG (0x1|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
#define OPENPCD_CMD_WRITE_FIFO (0x2|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
#define OPENPCD_CMD_WRITE_VFIFO (0x3|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
#define OPENPCD_CMD_REG_BITS_CLEAR (0x4|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
#define OPENPCD_CMD_REG_BITS_SET (0x5|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
#define OPENPCD_CMD_READ_REG (0x6|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
#define OPENPCD_CMD_READ_FIFO (0x7|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
#define OPENPCD_CMD_READ_VFIFO (0x8|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
#define OPENPCD_CMD_DUMP_REGS (0x9|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
#define OPENPCD_CMD_IRQ (0xa|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_RC632))
/* CMD_CLS_LED */
#define OPENPCD_CMD_SET_LED (0x1|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_LED))
/* CMD_CLS_SSC */
#define OPENPCD_CMD_SSC_READ (0x1|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_SSC))
#define OPENPCD_CMD_SSC_WRITE (0x2|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_SSC))
/* CMD_CLS_PWM */
#define OPENPCD_CMD_PWM_ENABLE (0x1|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_PWM))
#define OPENPCD_CMD_PWM_DUTY_SET (0x2|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_PWM))
#define OPENPCD_CMD_PWM_DUTY_GET (0x3|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_PWM))
#define OPENPCD_CMD_PWM_FREQ_SET (0x4|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_PWM))
#define OPENPCD_CMD_PWM_FREQ_GET (0x5|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_PWM))
/* CMD_CLS_PICC */
#define OPENPCD_CMD_PICC_REG_WRITE (0x1|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_PICC))
#define OPENPCD_CMD_PICC_REG_READ (0x2|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_PICC))
/* CMD_CLS_ADC */
#define OPENPCD_CMD_ADC_READ (0x1|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_ADC))
/* CMD_CLS_USBTEST */
#define OPENPCD_CMD_USBTEST_IN (0x1|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_USBTEST))
#define OPENPCD_CMD_USBTEST_OUT (0x2|OPENPCD_CLS2CMD(OPENPCD_CMD_CLS_USBTEST))
#define OPENPCD_VENDOR_ID 0x2342
#define OPENPCD_PRODUCT_ID 0x0001
#define OPENPCD_OUT_EP 0x01
#define OPENPCD_IN_EP 0x82
#define OPENPCD_IRQ_EP 0x83
#endif
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