mmdolze
0fdc92e156
backlight handling: Previously if keypad=yes was configured in LCDd.conf a value for the backlight was sent, regardless of the configuration in hd44780-serial.c. Now it decides upon the backlight flag from that file (enabling it in LCDd.conf is still required). If the backlight flag indicates the device supports backlight, the backlight_on / backlight_off values are sent (even if they are 0x00)!
56 lines
2.7 KiB
C
56 lines
2.7 KiB
C
/** \file server/drivers/hd44780-serial.h
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* Contains configuration data for serial attached HD44780 displays supported
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* by the \c hd44780 driver.
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*/
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#ifndef HD44780_SERIAL_H
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#define HD44780_SERIAL_H
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#define SERIALIF_NAME_LENGTH 20
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#define DEFAULT_DEVICE "/dev/lcd"
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/** Declares one configuration enty in the serial_interfaces table */
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struct hd44780_SerialInterface {
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int connectiontype; /**< Connection type from hd44780 config */
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/** Command escape character. This is always sent, even if 0x00 */
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char instruction_escape;
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/** Data escape character. Only sent if not NUL data is within range
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* configure by data_escape_min and data_escape_max. */
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char data_escape;
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char data_escape_min; /**< Escaped data lower limit (inclusive) */
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char data_escape_max; /**< Escaped data upper limit (exclusive) */
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unsigned int default_bitrate; /**< Bitrate device is set to by default */
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char if_bits; /**< Initialize to 8 or 4 bit interface */
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char keypad; /**< Flag: keypad available */
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char keypad_escape; /**< Keys are escaped with this character */
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char backlight; /**< Flag: backlight available */
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/** Escape character to send to indicate a backlight state change */
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char backlight_escape;
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char backlight_off; /**< Character sent to set display off */
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char backlight_on; /**< Character sent to set display on */
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/** Flag: Device has multiple controllers. If enabled, the displayID
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* is added to data escape */
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char multiple_displays;
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char end_code; /**< Code to send on shutdown */
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};
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/**
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* List of connectiontypes managed by this driver. If you change something
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* here, remember also to change hd44780-drivers.h as well.
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*/
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static const struct hd44780_SerialInterface serial_interfaces[] = {
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/* type instr data v ^ bitrate bits K esc B Besc Boff Bon Multi End */
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{ HD44780_CT_PICANLCD, 0x11, 0x12, 0x00, 0x20, 9600, 8, 0, 0x00, 0, 0, 0, 0, 0, 0 },
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{ HD44780_CT_LCDSERIALIZER, 0xFE, 0, 0x00, 0x00, 9600, 8, 0, 0x00, 0, 0, 0, 0, 0, 0 },
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{ HD44780_CT_LOS_PANEL, 0xFE, 0, 0x00, 0x00, 9600, 4, 1, 0xFE, 1, 0xFD, 0, 0xFF, 0, 0 },
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{ HD44780_CT_VDR_LCD, 0xFE, 0, 0x00, 0x00, 9600, 4, 0, 0x00, 0, 0, 0, 0, 0, 0 },
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{ HD44780_CT_VDR_WAKEUP, 0xC0, 0xC4, 0xC0, 0xD0, 9600, 4, 0, 0x00, 1, 0, 0xC9, 0xC8, 1, 0xCF },
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{ HD44780_CT_PERTELIAN, 0xFE, 0, 0x00, 0x00, 9600, 8, 0, 0x00, 1, 0xFE, 0x02, 0x03, 0, 0 },
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{ HD44780_CT_UNKNOWN, 0x00, 0, 0x00, 0x00, 0, 0, 0, 0, 0, 0x00, 0x00, 0x00, 0, 0 }
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};
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/* initialize this particular driver */
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int hd_init_serial(Driver *drvthis);
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#endif
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