diff options
| author | Patrick Wildt <patrick@cvs.openbsd.org> | 2019-01-17 13:29:45 +0000 |
|---|---|---|
| committer | Patrick Wildt <patrick@cvs.openbsd.org> | 2019-01-17 13:29:45 +0000 |
| commit | c481be35737bf4432cd80329ab6e0831e673bd76 (patch) | |
| tree | 872fd6bba52b356d207f515e270dc7d2c24262d4 /sys | |
| parent | b19c0b84a13021ff5ac0a4191eb4e0238516799c (diff) | |
Add support for the SSD1306 as seen on the NanoPi NEO2 with
a NanoHat OLED.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/fdt/ssdfb.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/sys/dev/fdt/ssdfb.c b/sys/dev/fdt/ssdfb.c index cb2c21dcd80..464290eb25b 100644 --- a/sys/dev/fdt/ssdfb.c +++ b/sys/dev/fdt/ssdfb.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssdfb.c,v 1.7 2018/08/17 21:00:17 patrick Exp $ */ +/* $OpenBSD: ssdfb.c,v 1.8 2019/01/17 13:29:44 patrick Exp $ */ /* * Copyright (c) 2018 Patrick Wildt <patrick@blueri.se> * @@ -40,6 +40,7 @@ #define SSDFB_SET_PAGE_RANGE 0x22 #define SSDFB_SET_START_LINE 0x40 #define SSDFB_SET_CONTRAST_CONTROL 0x81 +#define SSDFB_CHARGE_PUMP 0x8d #define SSDFB_SET_COLUMN_DIRECTION_NORMAL 0xa0 #define SSDFB_SET_COLUMN_DIRECTION_REVERSE 0xa1 #define SSDFB_SET_MULTIPLEX_RATIO 0xa8 @@ -179,7 +180,8 @@ ssdfb_i2c_match(struct device *parent, void *match, void *aux) { struct i2c_attach_args *ia = aux; - if (strcmp(ia->ia_name, "solomon,ssd1309fb-i2c") == 0) + if (strcmp(ia->ia_name, "solomon,ssd1306fb-i2c") == 0 || + strcmp(ia->ia_name, "solomon,ssd1309fb-i2c") == 0) return 1; return 0; @@ -375,6 +377,11 @@ ssdfb_init(struct ssdfb_softc *sc) reg[1] = 0xa0; ssdfb_write_command(sc, reg, 2); } + if (OF_is_compatible(sc->sc_node, "solomon,ssd1306fb-i2c")) { + reg[0] = SSDFB_SET_DISPLAY_CLOCK_DIVIDE_RATIO; + reg[1] = 0x80; + ssdfb_write_command(sc, reg, 2); + } reg[0] = SSDFB_SET_MULTIPLEX_RATIO; reg[1] = 0x3f; ssdfb_write_command(sc, reg, 2); @@ -411,6 +418,16 @@ ssdfb_init(struct ssdfb_softc *sc) reg[1] = 0x34; ssdfb_write_command(sc, reg, 2); } + if (OF_is_compatible(sc->sc_node, "solomon,ssd1306fb-i2c")) { + reg[0] = SSDFB_SET_VCOM_DESELECT_LEVEL; + reg[1] = 0x20; + ssdfb_write_command(sc, reg, 2); + } + reg[0] = SSDFB_CHARGE_PUMP; + reg[1] = 0x10; + if (OF_is_compatible(sc->sc_node, "solomon,ssd1306fb-i2c")) + reg[1] |= 1 << 2; + ssdfb_write_command(sc, reg, 2); reg[0] = SSDFB_ENTIRE_DISPLAY_ON; ssdfb_write_command(sc, reg, 1); reg[0] = SSDFB_SET_DISPLAY_MODE_NORMAL; |