mmdolze
c9623a72da
a sequence of characters or commands have to be terminated (common_init, position, flush). Modify the lcd2usb subdriver to implement a small command buffer and implement flush().
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
#ifndef HD_LCD2USB_H
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#define HD_LCD2USB_H
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#include "lcd.h" /* for Driver */
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#include "hd44780-low.h"
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/* vendor and product id */
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#define LCD2USB_VENDORID 0x0403
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#define LCD2USB_PRODUCTID 0xc630
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/* current protocol supports up to 4 bytes */
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#define LCD2USB_MAX_CMD 4
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/* target is a bit map for CMD/DATA */
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#define LCD2USB_CTRL_0 (1<<3)
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#define LCD2USB_CTRL_1 (1<<4)
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#define LCD2USB_CTRL_BOTH (LCD2USB_CTRL_0 | LCD2USB_CTRL_1)
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#define LCD2USB_ECHO (0<<5)
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#define LCD2USB_CMD (1<<5)
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#define LCD2USB_DATA (2<<5)
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#define LCD2USB_SET (3<<5)
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#define LCD2USB_GET (4<<5)
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/* target is value to set */
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#define LCD2USB_SET_CONTRAST (LCD2USB_SET | (0<<3))
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#define LCD2USB_SET_BRIGHTNESS (LCD2USB_SET | (1<<3))
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#define LCD2USB_SET_RESERVED0 (LCD2USB_SET | (2<<3))
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#define LCD2USB_SET_RESERVED1 (LCD2USB_SET | (3<<3))
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/* target is value to get */
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#define LCD2USB_GET_FWVER (LCD2USB_GET | (0<<3))
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#define LCD2USB_GET_KEYS (LCD2USB_GET | (1<<3))
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#define LCD2USB_GET_CTRL (LCD2USB_GET | (2<<3))
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#define LCD2USB_GET_RESERVED1 (LCD2USB_GET | (3<<3))
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// initialise this particular driver
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int hd_init_lcd2usb(Driver *drvthis);
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#endif
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