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Diffstat (limited to 'backend/lm9830.h')
| -rw-r--r-- | backend/lm9830.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/backend/lm9830.h b/backend/lm9830.h new file mode 100644 index 0000000..cd6a4d1 --- /dev/null +++ b/backend/lm9830.h @@ -0,0 +1,58 @@ +/* + (c) 2001 Nathan Rutman nathan@gordian.com 11/13/01 + + National Semi LM9830 scanner-on-a-chip register defs +*/ + +#ifndef LM9830_H +#define LM9830_H + + +/* LM9830 registers (see lm9830 datasheet for a full description */ +#define IMAGE_DATA_AVAIL 0x01 +#define STATUS 0x02 +#define DATAPORT_TARGET 0x03 +#define DATAPORT_ADDR 0x04 +#define DATAPORT 0x06 +#define COMMAND 0x07 +#define CLOCK_DIV 0x08 /* Master clock divider */ +#define ACTIVE_PX_START 0x1e /* Active pixel start */ +#define LINE_END 0x20 +#define DATA_PX_START 0x22 +#define DATA_PX_END 0x24 +#define COLOR_MODE 0x26 +#define LAMP_R_ON 0x2c +#define LAMP_R_OFF 0x2e +#define LAMP_G_ON 0x30 +#define LAMP_G_OFF 0x32 +#define LAMP_B_ON 0x34 +#define LAMP_B_OFF 0x36 +#define PARALLEL_PORT 0x42 /* Parallel port settings */ +#define MICROSTEP 0x45 +#define STEP_SIZE 0x46 +#define FAST_STEP 0x48 +#define SKIP_STEPS 0x4a +#define BUFFER_LIMIT 0x4e /* Pause scanning when buffer is this full */ +#define BUFFER_RESUME 0x4f +#define REVERSE_STEPS 0x50 +#define STEP_PWM 0x57 +#define PAPER_SENSOR 0x58 + +/* Register 02 flags */ +#define STATUS_HOME 0x02 +#define STATUS_PAUSE 0x10 +#define STATUS_POWER 0x20 + +/* Register 03 flags */ +#define DP_GAMMA 0x00 +#define DP_OFFSET 0x01 +#define DP_R 0x00 +#define DP_G 0x02 +#define DP_B 0x04 + +/* Register 04 flags */ +#define DP_WRITE 0x0000 +#define DP_READ 0x2000 + + +#endif /* LM9830_H */ |