From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/staging/fbtft/Kconfig | 202 +++++ drivers/staging/fbtft/Makefile | 38 + drivers/staging/fbtft/README | 32 + drivers/staging/fbtft/TODO | 3 + drivers/staging/fbtft/fb_agm1264k-fl.c | 441 +++++++++++ drivers/staging/fbtft/fb_bd663474.c | 171 ++++ drivers/staging/fbtft/fb_hx8340bn.c | 225 ++++++ drivers/staging/fbtft/fb_hx8347d.c | 183 +++++ drivers/staging/fbtft/fb_hx8353d.c | 148 ++++ drivers/staging/fbtft/fb_hx8357d.c | 201 +++++ drivers/staging/fbtft/fb_hx8357d.h | 71 ++ drivers/staging/fbtft/fb_ili9163.c | 260 +++++++ drivers/staging/fbtft/fb_ili9320.c | 267 +++++++ drivers/staging/fbtft/fb_ili9325.c | 261 +++++++ drivers/staging/fbtft/fb_ili9340.c | 139 ++++ drivers/staging/fbtft/fb_ili9341.c | 157 ++++ drivers/staging/fbtft/fb_ili9481.c | 103 +++ drivers/staging/fbtft/fb_ili9486.c | 103 +++ drivers/staging/fbtft/fb_pcd8544.c | 167 ++++ drivers/staging/fbtft/fb_ra8875.c | 305 ++++++++ drivers/staging/fbtft/fb_s6d02a1.c | 166 ++++ drivers/staging/fbtft/fb_s6d1121.c | 182 +++++ drivers/staging/fbtft/fb_seps525.c | 213 +++++ drivers/staging/fbtft/fb_sh1106.c | 180 +++++ drivers/staging/fbtft/fb_ssd1289.c | 179 +++++ drivers/staging/fbtft/fb_ssd1305.c | 207 +++++ drivers/staging/fbtft/fb_ssd1306.c | 228 ++++++ drivers/staging/fbtft/fb_ssd1325.c | 194 +++++ drivers/staging/fbtft/fb_ssd1331.c | 204 +++++ drivers/staging/fbtft/fb_ssd1351.c | 242 ++++++ drivers/staging/fbtft/fb_st7735r.c | 186 +++++ drivers/staging/fbtft/fb_st7789v.c | 394 ++++++++++ drivers/staging/fbtft/fb_tinylcd.c | 103 +++ drivers/staging/fbtft/fb_tls8204.c | 160 ++++ drivers/staging/fbtft/fb_uc1611.c | 337 ++++++++ drivers/staging/fbtft/fb_uc1701.c | 170 ++++ drivers/staging/fbtft/fb_upd161704.c | 184 +++++ drivers/staging/fbtft/fbtft-bus.c | 243 ++++++ drivers/staging/fbtft/fbtft-core.c | 1327 ++++++++++++++++++++++++++++++++ drivers/staging/fbtft/fbtft-io.c | 236 ++++++ drivers/staging/fbtft/fbtft-sysfs.c | 220 ++++++ drivers/staging/fbtft/fbtft.h | 444 +++++++++++ drivers/staging/fbtft/internal.h | 13 + 43 files changed, 9489 insertions(+) create mode 100644 drivers/staging/fbtft/Kconfig create mode 100644 drivers/staging/fbtft/Makefile create mode 100644 drivers/staging/fbtft/README create mode 100644 drivers/staging/fbtft/TODO create mode 100644 drivers/staging/fbtft/fb_agm1264k-fl.c create mode 100644 drivers/staging/fbtft/fb_bd663474.c create mode 100644 drivers/staging/fbtft/fb_hx8340bn.c create mode 100644 drivers/staging/fbtft/fb_hx8347d.c create mode 100644 drivers/staging/fbtft/fb_hx8353d.c create mode 100644 drivers/staging/fbtft/fb_hx8357d.c create mode 100644 drivers/staging/fbtft/fb_hx8357d.h create mode 100644 drivers/staging/fbtft/fb_ili9163.c create mode 100644 drivers/staging/fbtft/fb_ili9320.c create mode 100644 drivers/staging/fbtft/fb_ili9325.c create mode 100644 drivers/staging/fbtft/fb_ili9340.c create mode 100644 drivers/staging/fbtft/fb_ili9341.c create mode 100644 drivers/staging/fbtft/fb_ili9481.c create mode 100644 drivers/staging/fbtft/fb_ili9486.c create mode 100644 drivers/staging/fbtft/fb_pcd8544.c create mode 100644 drivers/staging/fbtft/fb_ra8875.c create mode 100644 drivers/staging/fbtft/fb_s6d02a1.c create mode 100644 drivers/staging/fbtft/fb_s6d1121.c create mode 100644 drivers/staging/fbtft/fb_seps525.c create mode 100644 drivers/staging/fbtft/fb_sh1106.c create mode 100644 drivers/staging/fbtft/fb_ssd1289.c create mode 100644 drivers/staging/fbtft/fb_ssd1305.c create mode 100644 drivers/staging/fbtft/fb_ssd1306.c create mode 100644 drivers/staging/fbtft/fb_ssd1325.c create mode 100644 drivers/staging/fbtft/fb_ssd1331.c create mode 100644 drivers/staging/fbtft/fb_ssd1351.c create mode 100644 drivers/staging/fbtft/fb_st7735r.c create mode 100644 drivers/staging/fbtft/fb_st7789v.c create mode 100644 drivers/staging/fbtft/fb_tinylcd.c create mode 100644 drivers/staging/fbtft/fb_tls8204.c create mode 100644 drivers/staging/fbtft/fb_uc1611.c create mode 100644 drivers/staging/fbtft/fb_uc1701.c create mode 100644 drivers/staging/fbtft/fb_upd161704.c create mode 100644 drivers/staging/fbtft/fbtft-bus.c create mode 100644 drivers/staging/fbtft/fbtft-core.c create mode 100644 drivers/staging/fbtft/fbtft-io.c create mode 100644 drivers/staging/fbtft/fbtft-sysfs.c create mode 100644 drivers/staging/fbtft/fbtft.h create mode 100644 drivers/staging/fbtft/internal.h (limited to 'drivers/staging/fbtft') diff --git a/drivers/staging/fbtft/Kconfig b/drivers/staging/fbtft/Kconfig new file mode 100644 index 000000000..4d29e8c10 --- /dev/null +++ b/drivers/staging/fbtft/Kconfig @@ -0,0 +1,202 @@ +# SPDX-License-Identifier: GPL-2.0 +menuconfig FB_TFT + tristate "Support for small TFT LCD display modules" + depends on FB && SPI + depends on GPIOLIB || COMPILE_TEST + select FB_SYS_FILLRECT + select FB_SYS_COPYAREA + select FB_SYS_IMAGEBLIT + select FB_SYS_FOPS + select FB_DEFERRED_IO + select FB_BACKLIGHT + +config FB_TFT_AGM1264K_FL + tristate "FB driver for the AGM1264K-FL LCD display" + depends on FB_TFT + help + Framebuffer support for the AGM1264K-FL LCD display (two Samsung KS0108 compatible chips) + +config FB_TFT_BD663474 + tristate "FB driver for the BD663474 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for BD663474 + +config FB_TFT_HX8340BN + tristate "FB driver for the HX8340BN LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for HX8340BN + +config FB_TFT_HX8347D + tristate "FB driver for the HX8347D LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for HX8347D + +config FB_TFT_HX8353D + tristate "FB driver for the HX8353D LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for HX8353D + +config FB_TFT_HX8357D + tristate "FB driver for the HX8357D LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for HX8357D + +config FB_TFT_ILI9163 + tristate "FB driver for the ILI9163 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for ILI9163 + +config FB_TFT_ILI9320 + tristate "FB driver for the ILI9320 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for ILI9320 + +config FB_TFT_ILI9325 + tristate "FB driver for the ILI9325 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for ILI9325 + +config FB_TFT_ILI9340 + tristate "FB driver for the ILI9340 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for ILI9340 + +config FB_TFT_ILI9341 + tristate "FB driver for the ILI9341 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for ILI9341 + +config FB_TFT_ILI9481 + tristate "FB driver for the ILI9481 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for ILI9481 + +config FB_TFT_ILI9486 + tristate "FB driver for the ILI9486 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for ILI9486 + +config FB_TFT_PCD8544 + tristate "FB driver for the PCD8544 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for PCD8544 + +config FB_TFT_RA8875 + tristate "FB driver for the RA8875 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for RA8875 + +config FB_TFT_S6D02A1 + tristate "FB driver for the S6D02A1 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for S6D02A1 + +config FB_TFT_S6D1121 + tristate "FB driver for the S6D1211 LCD Controller" + depends on FB_TFT + 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 + help + Framebuffer support for SH1106 + +config FB_TFT_SSD1289 + tristate "FB driver for the SSD1289 LCD Controller" + depends on FB_TFT + help + Framebuffer support for SSD1289 + +config FB_TFT_SSD1305 + tristate "FB driver for the SSD1305 OLED Controller" + depends on FB_TFT + help + Framebuffer support for SSD1305 + +config FB_TFT_SSD1306 + tristate "FB driver for the SSD1306 OLED Controller" + depends on FB_TFT + help + Framebuffer support for SSD1306 + +config FB_TFT_SSD1331 + tristate "FB driver for the SSD1331 LCD Controller" + depends on FB_TFT + help + Framebuffer support for SSD1331 + +config FB_TFT_SSD1351 + tristate "FB driver for the SSD1351 LCD Controller" + depends on FB_TFT + help + Framebuffer support for SSD1351 + +config FB_TFT_ST7735R + tristate "FB driver for the ST7735R LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for ST7735R + +config FB_TFT_ST7789V + tristate "FB driver for the ST7789V LCD Controller" + depends on FB_TFT + help + This enables generic framebuffer support for the Sitronix ST7789V + display controller. The controller is intended for small color + displays with a resolution of up to 320x240 pixels. + + Say Y if you have such a display that utilizes this controller. + +config FB_TFT_TINYLCD + tristate "FB driver for tinylcd.com display" + depends on FB_TFT + help + Custom Framebuffer support for tinylcd.com display + +config FB_TFT_TLS8204 + tristate "FB driver for the TLS8204 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for TLS8204 + +config FB_TFT_UC1611 + tristate "FB driver for the UC1611 LCD controller" + depends on FB_TFT + help + Generic Framebuffer support for UC1611 + +config FB_TFT_UC1701 + tristate "FB driver for the UC1701 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for UC1701 + +config FB_TFT_UPD161704 + tristate "FB driver for the uPD161704 LCD Controller" + depends on FB_TFT + help + Generic Framebuffer support for uPD161704 diff --git a/drivers/staging/fbtft/Makefile b/drivers/staging/fbtft/Makefile new file mode 100644 index 000000000..e9cdf0f0a --- /dev/null +++ b/drivers/staging/fbtft/Makefile @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0 +# Core module +obj-$(CONFIG_FB_TFT) += fbtft.o +fbtft-y += fbtft-core.o fbtft-sysfs.o fbtft-bus.o fbtft-io.o + +# drivers +obj-$(CONFIG_FB_TFT_AGM1264K_FL) += fb_agm1264k-fl.o +obj-$(CONFIG_FB_TFT_BD663474) += fb_bd663474.o +obj-$(CONFIG_FB_TFT_HX8340BN) += fb_hx8340bn.o +obj-$(CONFIG_FB_TFT_HX8347D) += fb_hx8347d.o +obj-$(CONFIG_FB_TFT_HX8353D) += fb_hx8353d.o +obj-$(CONFIG_FB_TFT_HX8357D) += fb_hx8357d.o +obj-$(CONFIG_FB_TFT_ILI9163) += fb_ili9163.o +obj-$(CONFIG_FB_TFT_ILI9320) += fb_ili9320.o +obj-$(CONFIG_FB_TFT_ILI9325) += fb_ili9325.o +obj-$(CONFIG_FB_TFT_ILI9340) += fb_ili9340.o +obj-$(CONFIG_FB_TFT_ILI9341) += fb_ili9341.o +obj-$(CONFIG_FB_TFT_ILI9481) += fb_ili9481.o +obj-$(CONFIG_FB_TFT_ILI9486) += fb_ili9486.o +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 +obj-$(CONFIG_FB_TFT_SSD1306) += fb_ssd1306.o +obj-$(CONFIG_FB_TFT_SSD1305) += fb_ssd1325.o +obj-$(CONFIG_FB_TFT_SSD1331) += fb_ssd1331.o +obj-$(CONFIG_FB_TFT_SSD1351) += fb_ssd1351.o +obj-$(CONFIG_FB_TFT_ST7735R) += fb_st7735r.o +obj-$(CONFIG_FB_TFT_ST7789V) += fb_st7789v.o +obj-$(CONFIG_FB_TFT_TINYLCD) += fb_tinylcd.o +obj-$(CONFIG_FB_TFT_TLS8204) += fb_tls8204.o +obj-$(CONFIG_FB_TFT_UC1611) += fb_uc1611.o +obj-$(CONFIG_FB_TFT_UC1701) += fb_uc1701.o +obj-$(CONFIG_FB_TFT_UPD161704) += fb_upd161704.o diff --git a/drivers/staging/fbtft/README b/drivers/staging/fbtft/README new file mode 100644 index 000000000..ba4c74c92 --- /dev/null +++ b/drivers/staging/fbtft/README @@ -0,0 +1,32 @@ + FBTFT +========= + +Linux Framebuffer drivers for small TFT LCD display modules. +The module 'fbtft' makes writing drivers for some of these displays very easy. + +Development is done on a Raspberry Pi running the Raspbian "wheezy" distribution. + +INSTALLATION + Download kernel sources + + From Linux 3.15 + cd drivers/video/fbdev/fbtft + git clone https://github.com/notro/fbtft.git + + Add to drivers/video/fbdev/Kconfig: source "drivers/video/fbdev/fbtft/Kconfig" + Add to drivers/video/fbdev/Makefile: obj-y += fbtft/ + + Before Linux 3.15 + cd drivers/video + git clone https://github.com/notro/fbtft.git + + Add to drivers/video/Kconfig: source "drivers/video/fbtft/Kconfig" + Add to drivers/video/Makefile: obj-y += fbtft/ + + Enable driver(s) in menuconfig and build the kernel + + +See wiki for more information: https://github.com/notro/fbtft/wiki + + +Source: https://github.com/notro/fbtft/ diff --git a/drivers/staging/fbtft/TODO b/drivers/staging/fbtft/TODO new file mode 100644 index 000000000..e72a08bf2 --- /dev/null +++ b/drivers/staging/fbtft/TODO @@ -0,0 +1,3 @@ +* convert all these over to drm_simple_display_pipe and submit for inclusion + into the DRM subsystem under drivers/gpu/drm - fbdev doesn't take any new + drivers anymore. diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c new file mode 100644 index 000000000..207d57854 --- /dev/null +++ b/drivers/staging/fbtft/fb_agm1264k-fl.c @@ -0,0 +1,441 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * FB driver for Two KS0108 LCD controllers in AGM1264K-FL display + * + * Copyright (C) 2014 ololoshka2871 + */ + +#include +#include +#include +#include +#include +#include + +#include "fbtft.h" + +/* Uncomment text line to use negative image on display */ +/*#define NEGATIVE*/ + +#define WHITE 0xff +#define BLACK 0 + +#define DRVNAME "fb_agm1264k-fl" +#define WIDTH 64 +#define HEIGHT 64 +#define TOTALWIDTH (WIDTH * 2) /* because 2 x ks0108 in one display */ +#define FPS 20 + +#define EPIN gpio.wr +#define RS gpio.dc +#define RW gpio.aux[2] +#define CS0 gpio.aux[0] +#define CS1 gpio.aux[1] + +/* diffusing error (Floyd-Steinberg) */ +#define DIFFUSING_MATRIX_WIDTH 2 +#define DIFFUSING_MATRIX_HEIGHT 2 + +static const signed char +diffusing_matrix[DIFFUSING_MATRIX_WIDTH][DIFFUSING_MATRIX_HEIGHT] = { + {-1, 3}, + {3, 2}, +}; + +static const unsigned char gamma_correction_table[] = { +0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, +1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, +6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 11, 11, 11, 12, 12, 13, +13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, +22, 22, 23, 23, 24, 25, 25, 26, 26, 27, 28, 28, 29, 30, 30, 31, 32, +33, 33, 34, 35, 35, 36, 37, 38, 39, 39, 40, 41, 42, 43, 43, 44, 45, +46, 47, 48, 49, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, +62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 78, 79, 81, +82, 83, 84, 85, 87, 88, 89, 90, 91, 93, 94, 95, 97, 98, 99, 100, 102, +103, 105, 106, 107, 109, 110, 111, 113, 114, 116, 117, 119, 120, 121, +123, 124, 126, 127, 129, 130, 132, 133, 135, 137, 138, 140, 141, 143, +145, 146, 148, 149, 151, 153, 154, 156, 158, 159, 161, 163, 165, 166, +168, 170, 172, 173, 175, 177, 179, 181, 182, 184, 186, 188, 190, 192, +194, 196, 197, 199, 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, +221, 223, 225, 227, 229, 231, 234, 236, 238, 240, 242, 244, 246, 248, +251, 253, 255 +}; + +static int init_display(struct fbtft_par *par) +{ + u8 i; + + par->fbtftops.reset(par); + + for (i = 0; i < 2; ++i) { + write_reg(par, i, 0x3f); /* display on */ + write_reg(par, i, 0x40); /* set x to 0 */ + write_reg(par, i, 0xb0); /* set page to 0 */ + write_reg(par, i, 0xc0); /* set start line to 0 */ + } + + return 0; +} + +/* Check if all necessary GPIOS defined */ +static int verify_gpios(struct fbtft_par *par) +{ + int i; + + dev_dbg(par->info->device, + "%s()\n", __func__); + + if (!par->EPIN) { + dev_err(par->info->device, + "Missing info about 'wr' (aka E) gpio. Aborting.\n"); + return -EINVAL; + } + for (i = 0; i < 8; ++i) { + if (!par->gpio.db[i]) { + dev_err(par->info->device, + "Missing info about 'db[%i]' gpio. Aborting.\n", + i); + return -EINVAL; + } + } + if (!par->CS0) { + dev_err(par->info->device, + "Missing info about 'cs0' gpio. Aborting.\n"); + return -EINVAL; + } + if (!par->CS1) { + dev_err(par->info->device, + "Missing info about 'cs1' gpio. Aborting.\n"); + return -EINVAL; + } + if (!par->RW) { + dev_err(par->info->device, + "Missing info about 'rw' gpio. Aborting.\n"); + return -EINVAL; + } + + return 0; +} + +static unsigned long +request_gpios_match(struct fbtft_par *par, const struct fbtft_gpio *gpio) +{ + dev_dbg(par->info->device, + "%s('%s')\n", __func__, gpio->name); + + if (strcasecmp(gpio->name, "wr") == 0) { + /* left ks0108 E pin */ + par->EPIN = gpio->gpio; + return GPIOD_OUT_LOW; + } else if (strcasecmp(gpio->name, "cs0") == 0) { + /* left ks0108 controller pin */ + par->CS0 = gpio->gpio; + return GPIOD_OUT_HIGH; + } else if (strcasecmp(gpio->name, "cs1") == 0) { + /* right ks0108 controller pin */ + par->CS1 = gpio->gpio; + return GPIOD_OUT_HIGH; + } + + /* if write (rw = 0) e(1->0) perform write */ + /* if read (rw = 1) e(0->1) set data on D0-7*/ + else if (strcasecmp(gpio->name, "rw") == 0) { + par->RW = gpio->gpio; + return GPIOD_OUT_LOW; + } + + return FBTFT_GPIO_NO_MATCH; +} + +/* This function oses to enter commands + * first byte - destination controller 0 or 1 + * following - commands + */ +static void write_reg8_bus8(struct fbtft_par *par, int len, ...) +{ + va_list args; + int i, ret; + u8 *buf = par->buf; + + if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) { + va_start(args, len); + for (i = 0; i < len; i++) + buf[i] = (u8)va_arg(args, unsigned int); + + va_end(args); + fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device, + u8, buf, len, "%s: ", __func__); +} + + va_start(args, len); + + *buf = (u8)va_arg(args, unsigned int); + + if (*buf > 1) { + va_end(args); + dev_err(par->info->device, + "Incorrect chip select request (%d)\n", *buf); + return; + } + + /* select chip */ + if (*buf) { + /* cs1 */ + gpiod_set_value(par->CS0, 0); + gpiod_set_value(par->CS1, 1); + } else { + /* cs0 */ + gpiod_set_value(par->CS0, 1); + gpiod_set_value(par->CS1, 0); + } + + gpiod_set_value(par->RS, 0); /* RS->0 (command mode) */ + len--; + + if (len) { + i = len; + while (i--) + *buf++ = (u8)va_arg(args, unsigned int); + ret = par->fbtftops.write(par, par->buf, len * (sizeof(u8))); + if (ret < 0) { + va_end(args); + dev_err(par->info->device, + "write() failed and returned %d\n", ret); + return; + } + } + + va_end(args); +} + +static struct +{ + int xs, ys_page, xe, ye_page; +} addr_win; + +/* save display writing zone */ +static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye) +{ + addr_win.xs = xs; + addr_win.ys_page = ys / 8; + addr_win.xe = xe; + addr_win.ye_page = ye / 8; +} + +static void +construct_line_bitmap(struct fbtft_par *par, u8 *dest, signed short *src, + int xs, int xe, int y) +{ + int x, i; + + for (x = xs; x < xe; ++x) { + u8 res = 0; + + for (i = 0; i < 8; i++) + if (src[(y * 8 + i) * par->info->var.xres + x]) + res |= 1 << i; +#ifdef NEGATIVE + *dest++ = res; +#else + *dest++ = ~res; +#endif + } +} + +static void iterate_diffusion_matrix(u32 xres, u32 yres, int x, + int y, signed short *convert_buf, + signed short pixel, signed short error) +{ + u16 i, j; + + /* diffusion matrix row */ + for (i = 0; i < DIFFUSING_MATRIX_WIDTH; ++i) + /* diffusion matrix column */ + for (j = 0; j < DIFFUSING_MATRIX_HEIGHT; ++j) { + signed short *write_pos; + signed char coeff; + + /* skip pixels out of zone */ + if (x + i < 0 || x + i >= xres || y + j >= yres) + continue; + write_pos = &convert_buf[(y + j) * xres + x + i]; + coeff = diffusing_matrix[i][j]; + if (-1 == coeff) { + /* pixel itself */ + *write_pos = pixel; + } else { + signed short p = *write_pos + error * coeff; + + if (p > WHITE) + p = WHITE; + if (p < BLACK) + p = BLACK; + *write_pos = p; + } + } +} + +static int write_vmem(struct fbtft_par *par, size_t offset, size_t len) +{ + u16 *vmem16 = (u16 *)par->info->screen_buffer; + u8 *buf = par->txbuf.buf; + int x, y; + int ret = 0; + + /* buffer to convert RGB565 -> grayscale16 -> Dithered image 1bpp */ + signed short *convert_buf = kmalloc_array(par->info->var.xres * + par->info->var.yres, sizeof(signed short), GFP_NOIO); + + if (!convert_buf) + return -ENOMEM; + + /* converting to grayscale16 */ + for (x = 0; x < par->info->var.xres; ++x) + for (y = 0; y < par->info->var.yres; ++y) { + u16 pixel = vmem16[y * par->info->var.xres + x]; + u16 b = pixel & 0x1f; + u16 g = (pixel & (0x3f << 5)) >> 5; + u16 r = (pixel & (0x1f << (5 + 6))) >> (5 + 6); + + pixel = (299 * r + 587 * g + 114 * b) / 200; + if (pixel > 255) + pixel = 255; + + /* gamma-correction by table */ + convert_buf[y * par->info->var.xres + x] = + (signed short)gamma_correction_table[pixel]; + } + + /* Image Dithering */ + for (x = 0; x < par->info->var.xres; ++x) + for (y = 0; y < par->info->var.yres; ++y) { + signed short pixel = + convert_buf[y * par->info->var.xres + x]; + signed short error_b = pixel - BLACK; + signed short error_w = pixel - WHITE; + signed short error; + + /* what color close? */ + if (abs(error_b) >= abs(error_w)) { + /* white */ + error = error_w; + pixel = 0xff; + } else { + /* black */ + error = error_b; + pixel = 0; + } + + error /= 8; + + iterate_diffusion_matrix(par->info->var.xres, + par->info->var.yres, + x, y, convert_buf, + pixel, error); + } + + /* 1 string = 2 pages */ + for (y = addr_win.ys_page; y <= addr_win.ye_page; ++y) { + /* left half of display */ + if (addr_win.xs < par->info->var.xres / 2) { + construct_line_bitmap(par, buf, convert_buf, + addr_win.xs, + par->info->var.xres / 2, y); + + len = par->info->var.xres / 2 - addr_win.xs; + + /* select left side (sc0) + * set addr + */ + write_reg(par, 0x00, BIT(6) | (u8)addr_win.xs); + write_reg(par, 0x00, (0x17 << 3) | (u8)y); + + /* write bitmap */ + gpiod_set_value(par->RS, 1); /* RS->1 (data mode) */ + ret = par->fbtftops.write(par, buf, len); + if (ret < 0) + dev_err(par->info->device, + "write failed and returned: %d\n", + ret); + } + /* right half of display */ + if (addr_win.xe >= par->info->var.xres / 2) { + construct_line_bitmap(par, buf, + convert_buf, + par->info->var.xres / 2, + addr_win.xe + 1, y); + + len = addr_win.xe + 1 - par->info->var.xres / 2; + + /* select right side (sc1) + * set addr + */ + write_reg(par, 0x01, BIT(6)); + write_reg(par, 0x01, (0x17 << 3) | (u8)y); + + /* write bitmap */ + gpiod_set_value(par->RS, 1); /* RS->1 (data mode) */ + par->fbtftops.write(par, buf, len); + if (ret < 0) + dev_err(par->info->device, + "write failed and returned: %d\n", + ret); + } + } + kfree(convert_buf); + + gpiod_set_value(par->CS0, 0); + gpiod_set_value(par->CS1, 0); + + return ret; +} + +static int write(struct fbtft_par *par, void *buf, size_t len) +{ + fbtft_par_dbg_hex(DEBUG_WRITE, par, par->info->device, u8, buf, len, + "%s(len=%zu): ", __func__, len); + + gpiod_set_value(par->RW, 0); /* set write mode */ + + while (len--) { + u8 i, data; + + data = *(u8 *)buf++; + + /* set data bus */ + for (i = 0; i < 8; ++i) + gpiod_set_value(par->gpio.db[i], data & (1 << i)); + /* set E */ + gpiod_set_value(par->EPIN, 0); + udelay(5); + /* unset E - write */ + gpiod_set_value(par->EPIN, 1); + udelay(1); + } + + return 0; +} + +static struct fbtft_display display = { + .regwidth = 8, + .width = TOTALWIDTH, + .height = HEIGHT, + .fps = FPS, + .fbtftops = { + .init_display = init_display, + .set_addr_win = set_addr_win, + .verify_gpios = verify_gpios, + .request_gpios_match = request_gpios_match, + .write = write, + .write_register = write_reg8_bus8, + .write_vmem = write_vmem, + }, +}; + +FBTFT_REGISTER_DRIVER(DRVNAME, "displaytronic,fb_agm1264k-fl", &display); + +MODULE_ALIAS("platform:" DRVNAME); + +MODULE_DESCRIPTION("Two KS0108 LCD controllers in AGM1264K-FL display"); +MODULE_AUTHOR("ololoshka2871"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/fbtft/fb_bd663474.c b/drivers/staging/fbtft/fb_bd663474.c new file mode 100644 index 000000000..1629c2c44 --- /dev/null +++ b/drivers/staging/fbtft/fb_bd663474.c @@ -0,0 +1,171 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * FB driver for the uPD161704 LCD Controller + * + * Copyright (C) 2014 Seong-Woo Kim + * + * Based on fb_ili9325.c by Noralf Tronnes + * Based on ili9325.c by Jeroen Domburg + * Init code from UTFT library by Henning Karlsen + */ + +#include +#include +#include +#include + +#include "fbtft.h" + +#define DRVNAME "fb_bd663474" +#define WIDTH 240 +#define HEIGHT 320 +#define BPP 16 + +static int init_display(struct fbtft_par *par) +{ + par->fbtftops.reset(par); + + /* Initialization sequence from Lib_UTFT */ + + /* oscillator start */ + write_reg(par, 0x000, 0x0001); /*oscillator 0: stop, 1: operation */ + mdelay(10); + + /* Power settings */ + write_reg(par, 0x100, 0x0000); /* power supply setup */ + write_reg(par, 0x101, 0x0000); + write_reg(par, 0x102, 0x3110); + write_reg(par, 0x103, 0xe200); + write_reg(par, 0x110, 0x009d); + write_reg(par, 0x111, 0x0022); + write_reg(par, 0x100, 0x0120); + mdelay(20); + + write_reg(par, 0x100, 0x3120); + mdelay(80); + /* Display control */ + write_reg(par, 0x001, 0x0100); + write_reg(par, 0x002, 0x0000); + write_reg(par, 0x003, 0x1230); + write_reg(par, 0x006, 0x0000); + write_reg(par, 0x007, 0x0101); + write_reg(par, 0x008, 0x0808); + write_reg(par, 0x009, 0x0000); + write_reg(par, 0x00b, 0x0000); + write_reg(par, 0x00c, 0x0000); + write_reg(par, 0x00d, 0x0018); + /* LTPS control settings */ + write_reg(par, 0x012, 0x0000); + write_reg(par, 0x013, 0x0000); + write_reg(par, 0x018, 0x0000); + write_reg(par, 0x019, 0x0000); + + write_reg(par, 0x203, 0x0000); + write_reg(par, 0x204, 0x0000); + + write_reg(par, 0x210, 0x0000); + write_reg(par, 0x211, 0x00ef); + write_reg(par, 0x212, 0x0000); + write_reg(par, 0x213, 0x013f); + write_reg(par, 0x214, 0x0000); + write_reg(par, 0x215, 0x0000); + write_reg(par, 0x216, 0x0000); + write_reg(par, 0x217, 0x0000); + + /* Gray scale settings */ + write_reg(par, 0x300, 0x5343); + write_reg(par, 0x301, 0x1021); + write_reg(par, 0x302, 0x0003); + write_reg(par, 0x303, 0x0011); + write_reg(par, 0x304, 0x050a); + write_reg(par, 0x305, 0x4342); + write_reg(par, 0x306, 0x1100); + write_reg(par, 0x307, 0x0003); + write_reg(par, 0x308, 0x1201); + write_reg(par, 0x309, 0x050a); + + /* RAM access settings */ + write_reg(par, 0x400, 0x4027); + write_reg(par, 0x401, 0x0000); + write_reg(par, 0x402, 0x0000); /* First screen drive position (1) */ + write_reg(par, 0x403, 0x013f); /* First screen drive position (2) */ + write_reg(par, 0x404, 0x0000); + + write_reg(par, 0x200, 0x0000); + write_reg(par, 0x201, 0x0000); + write_reg(par, 0x100, 0x7120); + write_reg(par, 0x007, 0x0103); + mdelay(10); + write_reg(par, 0x007, 0x0113); + + return 0; +} + +static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye) +{ + switch (par->info->var.rotate) { + /* R200h = Horizontal GRAM Start Address */ + /* R201h = Vertical GRAM Start Address */ + case 0: + write_reg(par, 0x0200, xs); + write_reg(par, 0x0201, ys); + break; + case 180: + write_reg(par, 0x0200, WIDTH - 1 - xs); + write_reg(par, 0x0201, HEIGHT - 1 - ys); + break; + case 270: + write_reg(par, 0x0200, WIDTH - 1 - ys); + write_reg(par, 0x0201, xs); + break; + case 90: + write_reg(par, 0x0200, ys); + write_reg(par, 0x0201, HEIGHT - 1 - xs); + break; + } + write_reg(par, 0x202); /* Write Data to GRAM */ +} + +static int set_var(struct fbtft_par *par) +{ + switch (par->info->var.rotate) { + /* AM: GRAM update direction */ + case 0: + write_reg(par, 0x003, 0x1230); + break; + case 180: + write_reg(par, 0x003, 0x1200); + break; + case 270: + write_reg(par, 0x003, 0x1228); + break; + case 90: + write_reg(par, 0x003, 0x1218); + break; + } + + return 0; +} + +static struct fbtft_display display = { + .regwidth = 16, + .width = WIDTH, + .height = HEIGHT, + .bpp = BPP, + .fbtftops = { + .init_display = init_display, + .set_addr_win = set_addr_win, + .set_var = set_var, + }, +}; + +FBTFT_REGISTER_DRIVER(DRVNAME, "hitachi,bd663474", &display); + +MODULE_ALIAS("spi:" DRVNAME); +MODULE_ALIAS("platform:" DRVNAME); +MODULE_ALIAS("spi:bd663474"); +MODULE_ALIAS("platform:bd663474"); + +MODULE_DESCRIPTION("FB driver for the uPD161704 LCD Controller"); +MODULE_AUTHOR("Seong-Woo Kim"); +MODULE_LICENSE("GPL"); diff --git a/drivers/staging/fbtft/fb_hx8340bn.c b/drivers/staging/fbtft/fb_hx8340bn.c new file mode 100644 index 000000000..2fd7b87ea --- /dev/null +++ b/drivers/staging/fbtft/fb_hx8340bn.c @@ -0,0 +1,225 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * FB driver for the HX8340BN LCD Controller + * + * This display uses 9-bit SPI: Data/Command bit + 8 data bits + * For platforms that doesn't support 9-bit, the driver is capable + * of emulating this using 8-bit transfer. + * This is done by transferring eight 9-bit words in 9 bytes. + * + * Copyright (C) 2013 Noralf Tronnes + */ + +#include +#include +#include +#include +#include +#include +#include