1 /* 2 (c) 2001 Nathan Rutman nathan@gordian.com 11/13/01 3 4 National Semi LM9830 scanner-on-a-chip register defs 5 */ 6 7 #ifndef LM9830_H 8 #define LM9830_H 9 10 11 /* LM9830 registers (see lm9830 datasheet for a full description */ 12 #define IMAGE_DATA_AVAIL 0x01 13 #define STATUS 0x02 14 #define DATAPORT_TARGET 0x03 15 #define DATAPORT_ADDR 0x04 16 #define DATAPORT 0x06 17 #define COMMAND 0x07 18 #define CLOCK_DIV 0x08 /* Master clock divider */ 19 #define ACTIVE_PX_START 0x1e /* Active pixel start */ 20 #define LINE_END 0x20 21 #define DATA_PX_START 0x22 22 #define DATA_PX_END 0x24 23 #define COLOR_MODE 0x26 24 #define LAMP_R_ON 0x2c 25 #define LAMP_R_OFF 0x2e 26 #define LAMP_G_ON 0x30 27 #define LAMP_G_OFF 0x32 28 #define LAMP_B_ON 0x34 29 #define LAMP_B_OFF 0x36 30 #define PARALLEL_PORT 0x42 /* Parallel port settings */ 31 #define MICROSTEP 0x45 32 #define STEP_SIZE 0x46 33 #define FAST_STEP 0x48 34 #define SKIP_STEPS 0x4a 35 #define BUFFER_LIMIT 0x4e /* Pause scanning when buffer is this full */ 36 #define BUFFER_RESUME 0x4f 37 #define REVERSE_STEPS 0x50 38 #define STEP_PWM 0x57 39 #define PAPER_SENSOR 0x58 40 41 /* Register 02 flags */ 42 #define STATUS_HOME 0x02 43 #define STATUS_PAUSE 0x10 44 #define STATUS_POWER 0x20 45 46 /* Register 03 flags */ 47 #define DP_GAMMA 0x00 48 #define DP_OFFSET 0x01 49 #define DP_R 0x00 50 #define DP_G 0x02 51 #define DP_B 0x04 52 53 /* Register 04 flags */ 54 #define DP_WRITE 0x0000 55 #define DP_READ 0x2000 56 57 58 #endif /* LM9830_H */ 59