mirror of
https://github.com/torvalds/linux.git
synced 2024-11-13 07:31:45 +00:00
drivers/staging/fbtft/fb_seps525: New driver for SEPS525 (Syncoam) LCD Controllers
The SEPS525 is a 160 RGB x 128 Dots, 262K Colors PM-OLED Display Driver and Controller. The controller can be found on the NHD-1.69-160128UGC3 (Newhaven Display International, Inc.). Datasheets: Link: https://www.newhavendisplay.com/appnotes/datasheets/OLEDs/SEPS525.pdf Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Co-developed-by: Beniamin Bia <beniamin.bia@analog.com> Signed-off-by: Beniamin Bia <beniamin.bia@analog.com> Link: https://lore.kernel.org/r/20191017170203.11999-1-beniamin.bia@analog.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Hennerich
Greg Kroah-Hartman
parent
5800d1d156
commit
f29acb9c5d
@ -15474,6 +15474,14 @@ L: linux-wireless@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/staging/wilc1000/
|
||||
|
||||
STAGING - SEPS525 LCD CONTROLLER DRIVERS
|
||||
M: Michael Hennerich <michael.hennerich@analog.com>
|
||||
M: Beniamin Bia <beniamin.bia@analog.com>
|
||||
L: linux-fbdev@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/staging/fbtft/fb_seps525.c
|
||||
F: Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
|
||||
|
||||
STAGING SUBSYSTEM
|
||||
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
|
||||
|
||||
@ -112,6 +112,13 @@ config FB_TFT_S6D1121
|
||||
help
|
||||
Generic Framebuffer support for S6D1121
|
||||
|
||||
config FB_TFT_SEPS525
|
||||
tristate "FB driver for the SEPS525 LCD Controller"
|
||||
depends on FB_TFT
|
||||
help
|
||||
Generic Framebuffer support for SEPS525
|
||||
Say Y if you have such a display that utilizes this controller.
|
||||
|
||||
config FB_TFT_SH1106
|
||||
tristate "FB driver for the SH1106 OLED Controller"
|
||||
depends on FB_TFT
|
||||
|
||||
@ -21,6 +21,7 @@ obj-$(CONFIG_FB_TFT_PCD8544) += fb_pcd8544.o
|
||||
obj-$(CONFIG_FB_TFT_RA8875) += fb_ra8875.o
|
||||
obj-$(CONFIG_FB_TFT_S6D02A1) += fb_s6d02a1.o
|
||||
obj-$(CONFIG_FB_TFT_S6D1121) += fb_s6d1121.o
|
||||
obj-$(CONFIG_FB_TFT_SEPS525) += fb_seps525.o
|
||||
obj-$(CONFIG_FB_TFT_SH1106) += fb_sh1106.o
|
||||
obj-$(CONFIG_FB_TFT_SSD1289) += fb_ssd1289.o
|
||||
obj-$(CONFIG_FB_TFT_SSD1305) += fb_ssd1305.o
|
||||
|
||||
213
drivers/staging/fbtft/fb_seps525.c
Normal file
213
drivers/staging/fbtft/fb_seps525.c
Normal file
@ -0,0 +1,213 @@
|
||||
// SPDX-License-Identifier: GPL-2.0
|
||||
/*
|
||||
* FB driver for the NHD-1.69-160128UGC3 (Newhaven Display International, Inc.)
|
||||
* using the SEPS525 (Syncoam) LCD Controller
|
||||
*
|
||||
* Copyright (C) 2016 Analog Devices Inc.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/delay.h>
|
||||
|
||||
#include "fbtft.h"
|
||||
|
||||
#define DRVNAME "fb_seps525"
|
||||
#define WIDTH 160
|
||||
#define HEIGHT 128
|
||||
|
||||
#define SEPS525_INDEX 0x00
|
||||
#define SEPS525_STATUS_RD 0x01
|
||||
#define SEPS525_OSC_CTL 0x02
|
||||
#define SEPS525_IREF 0x80
|
||||
#define SEPS525_CLOCK_DIV 0x03
|
||||
#define SEPS525_REDUCE_CURRENT 0x04
|
||||
#define SEPS525_SOFT_RST 0x05
|
||||
#define SEPS525_DISP_ONOFF 0x06
|
||||
#define SEPS525_PRECHARGE_TIME_R 0x08
|
||||
#define SEPS525_PRECHARGE_TIME_G 0x09
|
||||
#define SEPS525_PRECHARGE_TIME_B 0x0A
|
||||
#define SEPS525_PRECHARGE_CURRENT_R 0x0B
|
||||
#define SEPS525_PRECHARGE_CURRENT_G 0x0C
|
||||
#define SEPS525_PRECHARGE_CURRENT_B 0x0D
|
||||
#define SEPS525_DRIVING_CURRENT_R 0x10
|
||||
#define SEPS525_DRIVING_CURRENT_G 0x11
|
||||
#define SEPS525_DRIVING_CURRENT_B 0x12
|
||||
#define SEPS525_DISPLAYMODE_SET 0x13
|
||||
#define SEPS525_RGBIF 0x14
|
||||
#define SEPS525_RGB_POL 0x15
|
||||
#define SEPS525_MEMORY_WRITEMODE 0x16
|
||||
#define SEPS525_MX1_ADDR 0x17
|
||||
#define SEPS525_MX2_ADDR 0x18
|
||||
#define SEPS525_MY1_ADDR 0x19
|
||||
#define SEPS525_MY2_ADDR 0x1A
|
||||
#define SEPS525_MEMORY_ACCESS_POINTER_X 0x20
|
||||
#define SEPS525_MEMORY_ACCESS_POINTER_Y 0x21
|
||||
#define SEPS525_DDRAM_DATA_ACCESS_PORT 0x22
|
||||
#define SEPS525_GRAY_SCALE_TABLE_INDEX 0x50
|
||||
#define SEPS525_GRAY_SCALE_TABLE_DATA 0x51
|
||||
#define SEPS525_DUTY 0x28
|
||||
#define SEPS525_DSL 0x29
|
||||
#define SEPS525_D1_DDRAM_FAC 0x2E
|
||||
#define SEPS525_D1_DDRAM_FAR 0x2F
|
||||
#define SEPS525_D2_DDRAM_SAC 0x31
|
||||
#define SEPS525_D2_DDRAM_SAR 0x32
|
||||
#define SEPS525_SCR1_FX1 0x33
|
||||
#define SEPS525_SCR1_FX2 0x34
|
||||
#define SEPS525_SCR1_FY1 0x35
|
||||
#define SEPS525_SCR1_FY2 0x36
|
||||
#define SEPS525_SCR2_SX1 0x37
|
||||
#define SEPS525_SCR2_SX2 0x38
|
||||
#define SEPS525_SCR2_SY1 0x39
|
||||
#define SEPS525_SCR2_SY2 0x3A
|
||||
#define SEPS525_SCREEN_SAVER_CONTEROL 0x3B
|
||||
#define SEPS525_SS_SLEEP_TIMER 0x3C
|
||||
#define SEPS525_SCREEN_SAVER_MODE 0x3D
|
||||
#define SEPS525_SS_SCR1_FU 0x3E
|
||||
#define SEPS525_SS_SCR1_MXY 0x3F
|
||||
#define SEPS525_SS_SCR2_FU 0x40
|
||||
#define SEPS525_SS_SCR2_MXY 0x41
|
||||
#define SEPS525_MOVING_DIRECTION 0x42
|
||||
#define SEPS525_SS_SCR2_SX1 0x47
|
||||
#define SEPS525_SS_SCR2_SX2 0x48
|
||||
#define SEPS525_SS_SCR2_SY1 0x49
|
||||
#define SEPS525_SS_SCR2_SY2 0x4A
|
||||
|
||||
/* SEPS525_DISPLAYMODE_SET */
|
||||
#define MODE_SWAP_BGR BIT(7)
|
||||
#define MODE_SM BIT(6)
|
||||
#define MODE_RD BIT(5)
|
||||
#define MODE_CD BIT(4)
|
||||
|
||||
#define seps525_use_window 0 /* FBTFT doesn't really use it today */
|
||||
|
||||
/* Init sequence taken from: Arduino Library for the Adafruit 2.2" display */
|
||||
static int init_display(struct fbtft_par *par)
|
||||
{
|
||||
par->fbtftops.reset(par);
|
||||
|
||||
usleep_range(1000, 5000);
|
||||
|
||||
/* Disable Oscillator Power Down */
|
||||
write_reg(par, SEPS525_REDUCE_CURRENT, 0x03);
|
||||
usleep_range(1000, 5000);
|
||||
/* Set Normal Driving Current */
|
||||
write_reg(par, SEPS525_REDUCE_CURRENT, 0x00);
|
||||
usleep_range(1000, 5000);
|
||||
|
||||
write_reg(par, SEPS525_SCREEN_SAVER_CONTEROL, 0x00);
|
||||
/* Set EXPORT1 Pin at Internal Clock */
|
||||
write_reg(par, SEPS525_OSC_CTL, 0x01);
|
||||
/* Set Clock as 120 Frames/Sec */
|
||||
write_reg(par, SEPS525_CLOCK_DIV, 0x90);
|
||||
/* Set Reference Voltage Controlled by External Resister */
|
||||
write_reg(par, SEPS525_IREF, 0x01);
|
||||
|
||||
/* precharge time R G B */
|
||||
write_reg(par, SEPS525_PRECHARGE_TIME_R, 0x04);
|
||||
write_reg(par, SEPS525_PRECHARGE_TIME_G, 0x05);
|
||||
write_reg(par, SEPS525_PRECHARGE_TIME_B, 0x05);
|
||||
|
||||
/* precharge current R G B (uA) */
|
||||
write_reg(par, SEPS525_PRECHARGE_CURRENT_R, 0x9D);
|
||||
write_reg(par, SEPS525_PRECHARGE_CURRENT_G, 0x8C);
|
||||
write_reg(par, SEPS525_PRECHARGE_CURRENT_B, 0x57);
|
||||
|
||||
/* driving current R G B (uA) */
|
||||
write_reg(par, SEPS525_DRIVING_CURRENT_R, 0x56);
|
||||
write_reg(par, SEPS525_DRIVING_CURRENT_G, 0x4D);
|
||||
write_reg(par, SEPS525_DRIVING_CURRENT_B, 0x46);
|
||||
/* Set Color Sequence */
|
||||
write_reg(par, SEPS525_DISPLAYMODE_SET, 0xA0);
|
||||
write_reg(par, SEPS525_RGBIF, 0x01); /* Set MCU Interface Mode */
|
||||
/* Set Memory Write Mode */
|
||||
write_reg(par, SEPS525_MEMORY_WRITEMODE, 0x66);
|
||||
write_reg(par, SEPS525_DUTY, 0x7F); /* 1/128 Duty (0x0F~0x7F) */
|
||||
/* Set Mapping RAM Display Start Line (0x00~0x7F) */
|
||||
write_reg(par, SEPS525_DSL, 0x00);
|
||||
write_reg(par, SEPS525_DISP_ONOFF, 0x01); /* Display On (0x00/0x01) */
|
||||
/* Set All Internal Register Value as Normal Mode */
|
||||
write_reg(par, SEPS525_SOFT_RST, 0x00);
|
||||
/* Set RGB Interface Polarity as Active Low */
|
||||
write_reg(par, SEPS525_RGB_POL, 0x00);
|
||||
|
||||
write_reg(par, SEPS525_DDRAM_DATA_ACCESS_PORT);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
|
||||
{
|
||||
if (seps525_use_window) {
|
||||
/* Set Window Xs,Ys Xe,Ye*/
|
||||
write_reg(par, SEPS525_MX1_ADDR, xs);
|
||||
write_reg(par, SEPS525_MX2_ADDR, xe);
|
||||
write_reg(par, SEPS525_MY1_ADDR, ys);
|
||||
write_reg(par, SEPS525_MY2_ADDR, ye);
|
||||
}
|
||||
/* start position X,Y */
|
||||
write_reg(par, SEPS525_MEMORY_ACCESS_POINTER_X, xs);
|
||||
write_reg(par, SEPS525_MEMORY_ACCESS_POINTER_Y, ys);
|
||||
|
||||
write_reg(par, SEPS525_DDRAM_DATA_ACCESS_PORT);
|
||||
}
|
||||
|
||||
static int set_var(struct fbtft_par *par)
|
||||
{
|
||||
u8 val;
|
||||
|
||||
switch (par->info->var.rotate) {
|
||||
case 0:
|
||||
val = 0;
|
||||
break;
|
||||
case 180:
|
||||
val = MODE_RD | MODE_CD;
|
||||
break;
|
||||
case 90:
|
||||
case 270:
|
||||
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
/* Memory Access Control */
|
||||
write_reg(par, SEPS525_DISPLAYMODE_SET, val |
|
||||
(par->bgr ? MODE_SWAP_BGR : 0));
|
||||
|
||||
write_reg(par, SEPS525_DDRAM_DATA_ACCESS_PORT);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct fbtft_display display = {
|
||||
.regwidth = 8,
|
||||
.width = WIDTH,
|
||||
.height = HEIGHT,
|
||||
.fbtftops = {
|
||||
.init_display = init_display,
|
||||
.set_addr_win = set_addr_win,
|
||||
.set_var = set_var,
|
||||
},
|
||||
};
|
||||
|
||||
FBTFT_REGISTER_DRIVER(DRVNAME, "syncoam,seps525", &display);
|
||||
|
||||
MODULE_ALIAS("spi:" DRVNAME);
|
||||
MODULE_ALIAS("platform:" DRVNAME);
|
||||
MODULE_ALIAS("spi:seps525");
|
||||
MODULE_ALIAS("platform:seps525");
|
||||
|
||||
MODULE_DESCRIPTION("FB driver for the SEPS525 LCD Controller");
|
||||
MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Reference in New Issue
Block a user