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linux-ti335x-psp 3.1: add support for ST7735FB, but don't enable it in the beaglebone boardfile yet
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
This commit is contained in:
Koen Kooi
@@ -2239,11 +2239,14 @@ CONFIG_FB_CFB_FILLRECT=y
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CONFIG_FB_CFB_COPYAREA=y
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CONFIG_FB_CFB_IMAGEBLIT=y
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# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
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CONFIG_FB_SYS_FILLRECT=m
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CONFIG_FB_SYS_COPYAREA=m
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CONFIG_FB_SYS_IMAGEBLIT=m
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# CONFIG_FB_FOREIGN_ENDIAN is not set
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CONFIG_FB_SYS_FOPS=m
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CONFIG_FB_SYS_FILLRECT=y
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CONFIG_FB_SYS_COPYAREA=y
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CONFIG_FB_SYS_IMAGEBLIT=y
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CONFIG_FB_FOREIGN_ENDIAN=y
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CONFIG_FB_BOTH_ENDIAN=y
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# CONFIG_FB_BIG_ENDIAN is not set
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# CONFIG_FB_LITTLE_ENDIAN is not set
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CONFIG_FB_SYS_FOPS=y
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# CONFIG_FB_WMT_GE_ROPS is not set
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CONFIG_FB_DEFERRED_IO=y
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# CONFIG_FB_SVGALIB is not set
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@@ -2264,6 +2267,7 @@ CONFIG_FB_DA8XX_CONSISTENT_DMA_SIZE=4
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# CONFIG_FB_VIRTUAL is not set
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# CONFIG_FB_METRONOME is not set
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# CONFIG_FB_BROADSHEET is not set
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CONFIG_FB_ST7735=y
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# CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
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CONFIG_OMAP2_VRAM=y
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CONFIG_OMAP2_VRFB=y
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+667
@@ -0,0 +1,667 @@
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From a99fbc0639e6c42cd7c53c8d1d4852d04e9f8bb1 Mon Sep 17 00:00:00 2001
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From: Matt Porter <mporter@ti.com>
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Date: Mon, 21 Nov 2011 12:55:23 -0500
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Subject: [PATCH 1/2] st7735fb: WIP framebuffer driver supporting Adafruit 1.8" SPI LCD
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Signed-off-by: Matt Porter <mporter@ti.com>
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Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
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---
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drivers/video/Kconfig | 11 +
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drivers/video/Makefile | 1 +
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drivers/video/st7735fb.c | 516 ++++++++++++++++++++++++++++++++++++++++++++++
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include/video/st7735fb.h | 86 ++++++++
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4 files changed, 614 insertions(+), 0 deletions(-)
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create mode 100644 drivers/video/st7735fb.c
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create mode 100644 include/video/st7735fb.h
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diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
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index 792b7841..4ac5eb1 100644
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--- a/drivers/video/Kconfig
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+++ b/drivers/video/Kconfig
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@@ -2394,6 +2394,17 @@ config FB_PUV3_UNIGFX
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Choose this option if you want to use the Unigfx device as a
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framebuffer device. Without the support of PCI & AGP.
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+config FB_ST7735
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+ tristate "ST7735 framebuffer support"
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+ depends on FB && SPI
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+ select FB_SYS_FILLRECT
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+ select FB_SYS_COPYAREA
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+ select FB_SYS_IMAGEBLIT
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+ select FB_SYS_FOPS
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+ select FB_DEFERRED_IO
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+ help
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+ Framebuffer support for the ST7735 display controller in SPI mode.
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+
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source "drivers/video/omap/Kconfig"
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source "drivers/video/omap2/Kconfig"
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diff --git a/drivers/video/Makefile b/drivers/video/Makefile
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index 8b83129..6b67f05 100644
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--- a/drivers/video/Makefile
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+++ b/drivers/video/Makefile
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@@ -141,6 +141,7 @@ obj-$(CONFIG_FB_MSM) += msm/
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obj-$(CONFIG_FB_NUC900) += nuc900fb.o
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obj-$(CONFIG_FB_JZ4740) += jz4740_fb.o
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obj-$(CONFIG_FB_PUV3_UNIGFX) += fb-puv3.o
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+obj-$(CONFIG_FB_ST7735) += st7735fb.o
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# Platform or fallback drivers go here
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obj-$(CONFIG_FB_UVESA) += uvesafb.o
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diff --git a/drivers/video/st7735fb.c b/drivers/video/st7735fb.c
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new file mode 100644
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index 0000000..500cc88
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--- /dev/null
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+++ b/drivers/video/st7735fb.c
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@@ -0,0 +1,516 @@
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+/*
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+ * linux/drivers/video/st7735fb.c -- FB driver for ST7735 LCD controller
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+ * Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
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+ *
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+ * Copyright (C) 2011, Matt Porter
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+ *
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+ * This file is subject to the terms and conditions of the GNU General Public
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+ * License. See the file COPYING in the main directory of this archive for
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+ * more details.
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/kernel.h>
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+#include <linux/errno.h>
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+#include <linux/string.h>
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+#include <linux/mm.h>
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+#include <linux/vmalloc.h>
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+#include <linux/slab.h>
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+#include <linux/init.h>
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+#include <linux/fb.h>
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+#include <linux/gpio.h>
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+#include <linux/spi/spi.h>
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+#include <linux/delay.h>
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+#include <linux/uaccess.h>
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+
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+#include <video/st7735fb.h>
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+
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+static struct st7735_function st7735_cfg_script[] = {
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+ { ST7735_START, ST7735_START},
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+ { ST7735_CMD, ST7735_SWRESET},
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+ { ST7735_DELAY, 150},
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+ { ST7735_CMD, ST7735_SLPOUT},
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+ { ST7735_DELAY, 500},
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+ { ST7735_CMD, ST7735_FRMCTR1},
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+ { ST7735_DATA, 0x01},
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+ { ST7735_DATA, 0x2c},
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+ { ST7735_DATA, 0x2d},
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+ { ST7735_CMD, ST7735_FRMCTR2},
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+ { ST7735_DATA, 0x01},
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+ { ST7735_DATA, 0x2c},
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+ { ST7735_DATA, 0x2d},
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+ { ST7735_CMD, ST7735_FRMCTR3},
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+ { ST7735_DATA, 0x01},
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+ { ST7735_DATA, 0x2c},
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+ { ST7735_DATA, 0x2d},
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+ { ST7735_DATA, 0x01},
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+ { ST7735_DATA, 0x2c},
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+ { ST7735_DATA, 0x2d},
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+ { ST7735_CMD, ST7735_INVCTR},
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+ { ST7735_DATA, 0x07},
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+ { ST7735_CMD, ST7735_PWCTR1},
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+ { ST7735_DATA, 0xa2},
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+ { ST7735_DATA, 0x02},
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+ { ST7735_DATA, 0x84},
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+ { ST7735_CMD, ST7735_PWCTR2},
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+ { ST7735_DATA, 0xc5},
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+ { ST7735_CMD, ST7735_PWCTR3},
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+ { ST7735_DATA, 0x0a},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_CMD, ST7735_PWCTR4},
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+ { ST7735_DATA, 0x8a},
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+ { ST7735_DATA, 0x2a},
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+ { ST7735_CMD, ST7735_PWCTR5},
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+ { ST7735_DATA, 0x8a},
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+ { ST7735_DATA, 0xee},
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+ { ST7735_CMD, ST7735_VMCTR1},
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+ { ST7735_DATA, 0x0e},
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+ { ST7735_CMD, ST7735_INVOFF},
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+ { ST7735_CMD, ST7735_MADCTL},
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+ { ST7735_DATA, 0xc8},
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+ { ST7735_CMD, ST7735_COLMOD},
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+ { ST7735_DATA, 0x05},
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+ { ST7735_CMD, ST7735_CASET},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x7f},
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+ { ST7735_CMD, ST7735_RASET},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x9f},
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+ { ST7735_CMD, ST7735_GMCTRP1},
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+ { ST7735_DATA, 0x02},
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+ { ST7735_DATA, 0x1c},
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+ { ST7735_DATA, 0x07},
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+ { ST7735_DATA, 0x12},
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+ { ST7735_DATA, 0x37},
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+ { ST7735_DATA, 0x32},
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+ { ST7735_DATA, 0x29},
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+ { ST7735_DATA, 0x2d},
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+ { ST7735_DATA, 0x29},
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+ { ST7735_DATA, 0x25},
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+ { ST7735_DATA, 0x2b},
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+ { ST7735_DATA, 0x39},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x01},
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+ { ST7735_DATA, 0x03},
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+ { ST7735_DATA, 0x10},
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+ { ST7735_CMD, ST7735_GMCTRN1},
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+ { ST7735_DATA, 0x03},
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+ { ST7735_DATA, 0x1d},
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+ { ST7735_DATA, 0x07},
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+ { ST7735_DATA, 0x06},
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+ { ST7735_DATA, 0x2e},
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+ { ST7735_DATA, 0x2c},
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+ { ST7735_DATA, 0x29},
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+ { ST7735_DATA, 0x2d},
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+ { ST7735_DATA, 0x2e},
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+ { ST7735_DATA, 0x2e},
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+ { ST7735_DATA, 0x37},
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+ { ST7735_DATA, 0x3f},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x00},
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+ { ST7735_DATA, 0x02},
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+ { ST7735_DATA, 0x10},
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+ { ST7735_CMD, ST7735_DISPON},
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+ { ST7735_DELAY, 100},
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+ { ST7735_CMD, ST7735_NORON},
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+ { ST7735_DELAY, 10},
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+ { ST7735_END, ST7735_END},
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+};
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+
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+static struct fb_fix_screeninfo st7735fb_fix __devinitdata = {
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+ .id = "ST7735",
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+ .type = FB_TYPE_PACKED_PIXELS,
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+ .visual = FB_VISUAL_PSEUDOCOLOR,
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+ .xpanstep = 0,
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+ .ypanstep = 0,
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+ .ywrapstep = 0,
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+ .line_length = WIDTH*BPP/8,
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+ .accel = FB_ACCEL_NONE,
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+};
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+
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+static struct fb_var_screeninfo st7735fb_var __devinitdata = {
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+ .xres = WIDTH,
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+ .yres = HEIGHT,
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+ .xres_virtual = WIDTH,
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+ .yres_virtual = HEIGHT,
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+ .bits_per_pixel = BPP,
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+ .nonstd = 1,
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+};
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+
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+static int st7735_write(struct st7735fb_par *par, u8 data)
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+{
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+ u8 txbuf[2]; /* allocation from stack must go */
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+
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+ txbuf[0] = data;
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+
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+ return spi_write(par->spi, &txbuf[0], 1);
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+}
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+
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+static void st7735_write_data(struct st7735fb_par *par, u8 data)
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+{
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+ int ret = 0;
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+
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+ /* Set data mode */
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+ gpio_set_value(par->dc, 1);
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+
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+ ret = st7735_write(par, data);
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+ if (ret < 0)
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+ pr_err("%s: write data %02x failed with status %d\n",
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+ par->info->fix.id, data, ret);
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+}
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+
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+static int st7735_write_data_buf(struct st7735fb_par *par,
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+ u8 *txbuf, int size)
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+{
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+ /* Set data mode */
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+ gpio_set_value(par->dc, 1);
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+
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+ /* Write entire buffer */
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+ return spi_write(par->spi, txbuf, size);
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+}
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+
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+static void st7735_write_cmd(struct st7735fb_par *par, u8 data)
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+{
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+ int ret = 0;
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+
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+ /* Set command mode */
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+ gpio_set_value(par->dc, 0);
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+
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+ ret = st7735_write(par, data);
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+ if (ret < 0)
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+ pr_err("%s: write command %02x failed with status %d\n",
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+ par->info->fix.id, data, ret);
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+}
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+
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+static void st7735_run_cfg_script(struct st7735fb_par *par)
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+{
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+ int i = 0;
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+ int end_script = 0;
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+
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+ do {
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+ switch (st7735_cfg_script[i].cmd)
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+ {
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+ case ST7735_START:
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+ break;
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+ case ST7735_CMD:
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+ st7735_write_cmd(par,
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+ st7735_cfg_script[i].data & 0xff);
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+ break;
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+ case ST7735_DATA:
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+ st7735_write_data(par,
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+ st7735_cfg_script[i].data & 0xff);
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+ break;
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+ case ST7735_DELAY:
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+ mdelay(st7735_cfg_script[i].data);
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+ break;
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+ case ST7735_END:
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+ end_script = 1;
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+ }
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+ i++;
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+ } while (!end_script);
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+}
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+
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+static void st7735_set_addr_win(struct st7735fb_par *par,
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+ int xs, int ys, int xe, int ye)
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+{
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+ st7735_write_cmd(par, ST7735_CASET);
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+ st7735_write_data(par, 0x00);
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+ st7735_write_data(par, xs+2);
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+ st7735_write_data(par, 0x00);
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+ st7735_write_data(par, xe+2);
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+ st7735_write_cmd(par, ST7735_RASET);
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+ st7735_write_data(par, 0x00);
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+ st7735_write_data(par, ys+1);
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+ st7735_write_data(par, 0x00);
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+ st7735_write_data(par, ye+1);
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+}
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+
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+static void st7735_reset(struct st7735fb_par *par)
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+{
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+ /* Reset controller */
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+ gpio_set_value(par->rst, 0);
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+ udelay(10);
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+ gpio_set_value(par->rst, 1);
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+ mdelay(120);
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+}
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+
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+static void st7735fb_update_display(struct st7735fb_par *par)
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+{
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+ int ret = 0;
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+ u8 *vmem = par->info->screen_base;
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+
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+ /*
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+ TODO:
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+ Allow a subset of pages to be passed in
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+ (for deferred I/O). Check pages against
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+ pan display settings to see if they
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+ should be updated.
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+ */
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+ /* For now, just write the full 40KiB on each update */
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+
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+ /* Set row/column data window */
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+ st7735_set_addr_win(par, 0, 0, WIDTH-1, HEIGHT-1);
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+
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+ /* Internal RAM write command */
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+ st7735_write_cmd(par, ST7735_RAMWR);
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+
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+ /* Blast framebuffer to ST7735 internal display RAM */
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+ ret = st7735_write_data_buf(par, vmem, WIDTH*HEIGHT*BPP/8);
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+ if (ret < 0)
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+ pr_err("%s: spi_write failed to update display buffer\n",
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+ par->info->fix.id);
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+}
|
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+
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+static void st7735fb_deferred_io(struct fb_info *info,
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+ struct list_head *pagelist)
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+{
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+ st7735fb_update_display(info->par);
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+}
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+
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+static int st7735fb_init_display(struct st7735fb_par *par)
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+{
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+ /* TODO: Need some error checking on gpios */
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+
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+ /* Request GPIOs and initialize to default values */
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+ gpio_request_one(par->rst, GPIOF_OUT_INIT_HIGH,
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+ "ST7735 Reset Pin");
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+ gpio_request_one(par->dc, GPIOF_OUT_INIT_LOW,
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+ "ST7735 Data/Command Pin");
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+
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+ st7735_reset(par);
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+
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+ st7735_run_cfg_script(par);
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+
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+ return 0;
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+}
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+
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+void st7735fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
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+{
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+ struct st7735fb_par *par = info->par;
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+
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+ sys_fillrect(info, rect);
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+
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+ st7735fb_update_display(par);
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+}
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+
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+void st7735fb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
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+{
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+ struct st7735fb_par *par = info->par;
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+
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+ sys_copyarea(info, area);
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+
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+ st7735fb_update_display(par);
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+}
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+
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+void st7735fb_imageblit(struct fb_info *info, const struct fb_image *image)
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+{
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+ struct st7735fb_par *par = info->par;
|
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+
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+ sys_imageblit(info, image);
|
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+
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+ st7735fb_update_display(par);
|
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+}
|
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+
|
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+static ssize_t st7735fb_write(struct fb_info *info, const char __user *buf,
|
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+ size_t count, loff_t *ppos)
|
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+{
|
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+ struct st7735fb_par *par = info->par;
|
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+ unsigned long p = *ppos;
|
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+ void *dst;
|
||||
+ int err = 0;
|
||||
+ unsigned long total_size;
|
||||
+
|
||||
+ if (info->state != FBINFO_STATE_RUNNING)
|
||||
+ return -EPERM;
|
||||
+
|
||||
+ total_size = info->fix.smem_len;
|
||||
+
|
||||
+ if (p > total_size)
|
||||
+ return -EFBIG;
|
||||
+
|
||||
+ if (count > total_size) {
|
||||
+ err = -EFBIG;
|
||||
+ count = total_size;
|
||||
+ }
|
||||
+
|
||||
+ if (count + p > total_size) {
|
||||
+ if (!err)
|
||||
+ err = -ENOSPC;
|
||||
+
|
||||
+ count = total_size - p;
|
||||
+ }
|
||||
+
|
||||
+ dst = (void __force *) (info->screen_base + p);
|
||||
+
|
||||
+ if (copy_from_user(dst, buf, count))
|
||||
+ err = -EFAULT;
|
||||
+
|
||||
+ if (!err)
|
||||
+ *ppos += count;
|
||||
+
|
||||
+ st7735fb_update_display(par);
|
||||
+
|
||||
+ return (err) ? err : count;
|
||||
+}
|
||||
+
|
||||
+static struct fb_ops st7735fb_ops = {
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .fb_read = fb_sys_read,
|
||||
+ .fb_write = st7735fb_write,
|
||||
+ .fb_fillrect = st7735fb_fillrect,
|
||||
+ .fb_copyarea = st7735fb_copyarea,
|
||||
+ .fb_imageblit = st7735fb_imageblit,
|
||||
+};
|
||||
+
|
||||
+static struct fb_deferred_io st7735fb_defio = {
|
||||
+ .delay = HZ,
|
||||
+ .deferred_io = st7735fb_deferred_io,
|
||||
+};
|
||||
+
|
||||
+static int __devinit st7735fb_probe (struct spi_device *spi)
|
||||
+{
|
||||
+ int chip = spi_get_device_id(spi)->driver_data;
|
||||
+ struct st7735fb_platform_data *pdata = spi->dev.platform_data;
|
||||
+ int vmem_size = WIDTH*HEIGHT*BPP/8;
|
||||
+ u8 *vmem;
|
||||
+ struct fb_info *info;
|
||||
+ struct st7735fb_par *par;
|
||||
+ int retval = -ENOMEM;
|
||||
+
|
||||
+ if (chip != ST7735_DISPLAY_AF_TFT18) {
|
||||
+ pr_err("%s: only the %s device is supported\n", DRVNAME,
|
||||
+ to_spi_driver(spi->dev.driver)->id_table->name);
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
+ if (!pdata) {
|
||||
+ pr_err("%s: platform data required for rst and dc info\n",
|
||||
+ DRVNAME);
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
+ vmem = vzalloc(vmem_size);
|
||||
+ if (!vmem)
|
||||
+ return retval;
|
||||
+
|
||||
+ info = framebuffer_alloc(sizeof(struct st7735fb_par), &spi->dev);
|
||||
+ if (!info)
|
||||
+ goto fballoc_fail;
|
||||
+
|
||||
+ info->screen_base = (u8 __force __iomem *)vmem;
|
||||
+ info->fbops = &st7735fb_ops;
|
||||
+ info->fix = st7735fb_fix;
|
||||
+ info->fix.smem_len = vmem_size;
|
||||
+ info->var = st7735fb_var;
|
||||
+ /* Choose any packed pixel format as long as it's RGB565 */
|
||||
+ info->var.red.offset = 11;
|
||||
+ info->var.red.length = 5;
|
||||
+ info->var.green.offset = 5;
|
||||
+ info->var.green.length = 6;
|
||||
+ info->var.blue.offset = 0;
|
||||
+ info->var.blue.length = 5;
|
||||
+ info->var.transp.offset = 0;
|
||||
+ info->var.transp.length = 0;
|
||||
+ info->flags = FBINFO_FLAG_DEFAULT |
|
||||
+#ifdef __LITTLE_ENDIAN
|
||||
+ FBINFO_FOREIGN_ENDIAN |
|
||||
+#endif
|
||||
+ FBINFO_VIRTFB;
|
||||
+
|
||||
+ info->fbdefio = &st7735fb_defio;
|
||||
+ fb_deferred_io_init(info);
|
||||
+
|
||||
+ par = info->par;
|
||||
+ par->info = info;
|
||||
+ par->spi = spi;
|
||||
+ par->rst = pdata->rst_gpio;
|
||||
+ par->dc = pdata->dc_gpio;
|
||||
+
|
||||
+ retval = register_framebuffer(info);
|
||||
+ if (retval < 0)
|
||||
+ goto fbreg_fail;
|
||||
+
|
||||
+ spi_set_drvdata(spi, info);
|
||||
+
|
||||
+ retval = st7735fb_init_display(par);
|
||||
+ if (retval < 0)
|
||||
+ goto init_fail;
|
||||
+
|
||||
+ printk(KERN_INFO
|
||||
+ "fb%d: %s frame buffer device,\n\tusing %d KiB of video memory\n",
|
||||
+ info->node, info->fix.id, vmem_size);
|
||||
+
|
||||
+ return 0;
|
||||
+
|
||||
+
|
||||
+ /* TODO: release gpios on fail */
|
||||
+init_fail:
|
||||
+ spi_set_drvdata(spi, NULL);
|
||||
+
|
||||
+fbreg_fail:
|
||||
+ framebuffer_release(info);
|
||||
+
|
||||
+fballoc_fail:
|
||||
+ vfree(vmem);
|
||||
+
|
||||
+ return retval;
|
||||
+}
|
||||
+
|
||||
+static int __devexit st7735fb_remove(struct spi_device *spi)
|
||||
+{
|
||||
+ struct fb_info *info = spi_get_drvdata(spi);
|
||||
+
|
||||
+ spi_set_drvdata(spi, NULL);
|
||||
+
|
||||
+ if (info) {
|
||||
+ unregister_framebuffer(info);
|
||||
+ vfree(info->screen_base);
|
||||
+ framebuffer_release(info);
|
||||
+ }
|
||||
+
|
||||
+ /* TODO: release gpios */
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct spi_device_id st7735fb_ids[] = {
|
||||
+ { "adafruit_tft18", ST7735_DISPLAY_AF_TFT18 },
|
||||
+ { },
|
||||
+};
|
||||
+
|
||||
+MODULE_DEVICE_TABLE(spi, st7735fb_ids);
|
||||
+
|
||||
+static struct spi_driver st7735fb_driver = {
|
||||
+ .driver = {
|
||||
+ .name = "st7735fb",
|
||||
+ .owner = THIS_MODULE,
|
||||
+ },
|
||||
+ .id_table = st7735fb_ids,
|
||||
+ .probe = st7735fb_probe,
|
||||
+ .remove = __devexit_p(st7735fb_remove),
|
||||
+};
|
||||
+
|
||||
+static int __init st7735fb_init(void)
|
||||
+{
|
||||
+ return spi_register_driver(&st7735fb_driver);
|
||||
+}
|
||||
+
|
||||
+static void __exit st7735fb_exit(void)
|
||||
+{
|
||||
+ spi_unregister_driver(&st7735fb_driver);
|
||||
+}
|
||||
+
|
||||
+/* ------------------------------------------------------------------------- */
|
||||
+
|
||||
+module_init(st7735fb_init);
|
||||
+module_exit(st7735fb_exit);
|
||||
+
|
||||
+MODULE_DESCRIPTION("FB driver for ST7735 display controller");
|
||||
+MODULE_AUTHOR("Matt Porter");
|
||||
+MODULE_LICENSE("GPL");
|
||||
diff --git a/include/video/st7735fb.h b/include/video/st7735fb.h
|
||||
new file mode 100644
|
||||
index 0000000..250f036
|
||||
--- /dev/null
|
||||
+++ b/include/video/st7735fb.h
|
||||
@@ -0,0 +1,86 @@
|
||||
+/*
|
||||
+ * linux/include/video/st7735fb.h -- FB driver for ST7735 LCD controller
|
||||
+ *
|
||||
+ * Copyright (C) 2011, Matt Porter
|
||||
+ *
|
||||
+ * This file is subject to the terms and conditions of the GNU General Public
|
||||
+ * License. See the file COPYING in the main directory of this archive for
|
||||
+ * more details.
|
||||
+ */
|
||||
+
|
||||
+#define DRVNAME "st7735fb"
|
||||
+#define WIDTH 128
|
||||
+#define HEIGHT 160
|
||||
+#define BPP 16
|
||||
+
|
||||
+/* Supported display modules */
|
||||
+#define ST7735_DISPLAY_AF_TFT18 0 /* Adafruit SPI TFT 1.8" */
|
||||
+
|
||||
+/* Init script function */
|
||||
+struct st7735_function {
|
||||
+ u16 cmd;
|
||||
+ u16 data;
|
||||
+};
|
||||
+
|
||||
+/* Init script commands */
|
||||
+enum st7735_cmd {
|
||||
+ ST7735_START,
|
||||
+ ST7735_END,
|
||||
+ ST7735_CMD,
|
||||
+ ST7735_DATA,
|
||||
+ ST7735_DELAY
|
||||
+};
|
||||
+
|
||||
+struct st7735fb_par {
|
||||
+ struct spi_device *spi;
|
||||
+ struct fb_info *info;
|
||||
+ int rst;
|
||||
+ int dc;
|
||||
+};
|
||||
+
|
||||
+struct st7735fb_platform_data {
|
||||
+ int rst_gpio;
|
||||
+ int dc_gpio;
|
||||
+};
|
||||
+
|
||||
+/* ST7735 Commands */
|
||||
+#define ST7735_NOP 0x0
|
||||
+#define ST7735_SWRESET 0x01
|
||||
+#define ST7735_RDDID 0x04
|
||||
+#define ST7735_RDDST 0x09
|
||||
+#define ST7735_SLPIN 0x10
|
||||
+#define ST7735_SLPOUT 0x11
|
||||
+#define ST7735_PTLON 0x12
|
||||
+#define ST7735_NORON 0x13
|
||||
+#define ST7735_INVOFF 0x20
|
||||
+#define ST7735_INVON 0x21
|
||||
+#define ST7735_DISPOFF 0x28
|
||||
+#define ST7735_DISPON 0x29
|
||||
+#define ST7735_CASET 0x2A
|
||||
+#define ST7735_RASET 0x2B
|
||||
+#define ST7735_RAMWR 0x2C
|
||||
+#define ST7735_RAMRD 0x2E
|
||||
+#define ST7735_COLMOD 0x3A
|
||||
+#define ST7735_MADCTL 0x36
|
||||
+#define ST7735_FRMCTR1 0xB1
|
||||
+#define ST7735_FRMCTR2 0xB2
|
||||
+#define ST7735_FRMCTR3 0xB3
|
||||
+#define ST7735_INVCTR 0xB4
|
||||
+#define ST7735_DISSET5 0xB6
|
||||
+#define ST7735_PWCTR1 0xC0
|
||||
+#define ST7735_PWCTR2 0xC1
|
||||
+#define ST7735_PWCTR3 0xC2
|
||||
+#define ST7735_PWCTR4 0xC3
|
||||
+#define ST7735_PWCTR5 0xC4
|
||||
+#define ST7735_VMCTR1 0xC5
|
||||
+#define ST7735_RDID1 0xDA
|
||||
+#define ST7735_RDID2 0xDB
|
||||
+#define ST7735_RDID3 0xDC
|
||||
+#define ST7735_RDID4 0xDD
|
||||
+#define ST7735_GMCTRP1 0xE0
|
||||
+#define ST7735_GMCTRN1 0xE1
|
||||
+#define ST7735_PWCTR6 0xFC
|
||||
+
|
||||
+
|
||||
+
|
||||
+
|
||||
--
|
||||
1.7.2.5
|
||||
|
||||
+73
@@ -0,0 +1,73 @@
|
||||
From dd3f24640c209d8186010dbf2bbabe11f3eb52ce Mon Sep 17 00:00:00 2001
|
||||
From: Matt Porter <mporter@ti.com>
|
||||
Date: Mon, 21 Nov 2011 12:56:52 -0500
|
||||
Subject: [PATCH 2/2] beaglebone: hack in support for the WIP st7735fb driver
|
||||
|
||||
Signed-off-by: Matt Porter <mporter@ti.com>
|
||||
---
|
||||
arch/arm/mach-omap2/board-am335xevm.c | 28 ++++++++++++++++++++++++++++
|
||||
1 files changed, 28 insertions(+), 0 deletions(-)
|
||||
|
||||
diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
|
||||
index b27fb97..f049aad 100644
|
||||
--- a/arch/arm/mach-omap2/board-am335xevm.c
|
||||
+++ b/arch/arm/mach-omap2/board-am335xevm.c
|
||||
@@ -51,6 +51,7 @@
|
||||
|
||||
/* LCD controller is similar to DA850 */
|
||||
#include <video/da8xx-fb.h>
|
||||
+#include <video/st7735fb.h>
|
||||
|
||||
#include "control.h"
|
||||
#include "board-flash.h"
|
||||
@@ -1094,6 +1095,23 @@ static struct spi_board_info am335x_spi1_slave_info[] = {
|
||||
},
|
||||
};
|
||||
|
||||
+static const struct st7735fb_platform_data bone_st7735fb_data = {
|
||||
+ .rst_gpio = GPIO_TO_PIN(3, 19),
|
||||
+ .dc_gpio = GPIO_TO_PIN(3, 21),
|
||||
+};
|
||||
+
|
||||
+static struct spi_board_info bone_spi1_slave_info[] = {
|
||||
+ {
|
||||
+ .modalias = "adafruit_tft18",
|
||||
+ .platform_data = &bone_st7735fb_data,
|
||||
+ .irq = -1,
|
||||
+ .max_speed_hz = 8000000,
|
||||
+ .bus_num = 2,
|
||||
+ .chip_select = 0,
|
||||
+ .mode = SPI_MODE_3,
|
||||
+ },
|
||||
+};
|
||||
+
|
||||
static void evm_nand_init(int evm_id, int profile)
|
||||
{
|
||||
setup_pin_mux(nand_pin_mux);
|
||||
@@ -1410,6 +1428,14 @@ static void spi1_init(int evm_id, int profile)
|
||||
return;
|
||||
}
|
||||
|
||||
+/* setup bone spi1 */
|
||||
+static void bone_spi1_init(int evm_id, int profile)
|
||||
+{
|
||||
+ setup_pin_mux(spi1_pin_mux);
|
||||
+ spi_register_board_info(bone_spi1_slave_info,
|
||||
+ ARRAY_SIZE(bone_spi1_slave_info));
|
||||
+ return;
|
||||
+}
|
||||
|
||||
static int beaglebone_phy_fixup(struct phy_device *phydev)
|
||||
{
|
||||
@@ -1567,6 +1593,8 @@ static struct evm_dev_cfg beaglebone_dev_cfg[] = {
|
||||
{i2c2_init, DEV_ON_BASEBOARD, PROFILE_NONE},
|
||||
{mmc0_init, DEV_ON_BASEBOARD, PROFILE_NONE},
|
||||
{boneleds_init, DEV_ON_BASEBOARD, PROFILE_ALL},
|
||||
+ /* HACK ALERT */
|
||||
+ {bone_spi1_init, DEV_ON_BASEBOARD, PROFILE_NONE},
|
||||
{NULL, 0, 0},
|
||||
};
|
||||
|
||||
--
|
||||
1.7.2.5
|
||||
|
||||
@@ -11,7 +11,7 @@ MULTI_CONFIG_BASE_SUFFIX = ""
|
||||
|
||||
BRANCH = "v3.1-meta-ti-r1r+gitr1d84d8853fa30cf3db2571a5aec572accca4e29d"
|
||||
SRCREV = "1d84d8853fa30cf3db2571a5aec572accca4e29d"
|
||||
MACHINE_KERNEL_PR_append = "d+gitr${SRCREV}"
|
||||
MACHINE_KERNEL_PR_append = "e+gitr${SRCREV}"
|
||||
|
||||
COMPATIBLE_MACHINE = "(ti33x)"
|
||||
|
||||
@@ -54,6 +54,7 @@ PATCHES_OVER_PSP = " \
|
||||
file://adc/0008-tscadc-Trigger-through-sysfs.patch \
|
||||
file://adc/0009-meta-ti-Remove-debug-messages-for-meta-ti.patch \
|
||||
file://adc/0010-tscadc-switch-to-polling-instead-of-interrupts.patch \
|
||||
file://st7735fb/0001-st7735fb-WIP-framebuffer-driver-supporting-Adafruit-.patch \
|
||||
"
|
||||
|
||||
SRC_URI += "${@base_contains('DISTRO_FEATURES', 'tipspkernel', "", "${PATCHES_OVER_PSP}", d)}"
|
||||
|
||||
Reference in New Issue
Block a user