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-rw-r--r--drivers/video/Kconfig33
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/am200epd.c295
-rw-r--r--drivers/video/atmel_lcdfb.c88
-rw-r--r--drivers/video/backlight/Kconfig15
-rw-r--r--drivers/video/backlight/Makefile2
-rw-r--r--drivers/video/backlight/corgi_lcd.c641
-rw-r--r--drivers/video/backlight/lcd.c18
-rw-r--r--drivers/video/backlight/tdo24m.c396
-rw-r--r--drivers/video/console/Kconfig16
-rw-r--r--drivers/video/console/fbcon.c6
-rw-r--r--drivers/video/console/fbcon.h2
-rw-r--r--drivers/video/fbmem.c1
-rw-r--r--drivers/video/metronomefb.c288
-rw-r--r--drivers/video/xen-fbfront.c4
15 files changed, 1298 insertions, 508 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 70d135e0cc4..f79c2040758 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -172,11 +172,6 @@ config FB_DEFERRED_IO
bool
depends on FB
-config FB_METRONOME
- tristate
- depends on FB
- depends on FB_DEFERRED_IO
-
config FB_HECUBA
tristate
depends on FB
@@ -678,7 +673,6 @@ config FB_VESA
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
- select VIDEO_SELECT
help
This is the frame buffer device driver for generic VESA 2.0
compliant graphic cards. The older VESA 1.2 cards are not supported.
@@ -1583,7 +1577,6 @@ config FB_CYBLA
tristate "Cyberblade/i1 support"
depends on FB && PCI && X86_32 && !64BIT
select FB_CFB_IMAGEBLIT
- select VIDEO_SELECT
---help---
This driver is supposed to support the Trident Cyberblade/i1
graphics core integrated in the VIA VT8601A North Bridge,
@@ -1974,19 +1967,6 @@ config FB_XILINX
framebuffer. ML300 carries a 640*480 LCD display on the board,
ML403 uses a standard DB15 VGA connector.
-config FB_AM200EPD
- tristate "AM-200 E-Ink EPD devkit support"
- depends on FB && ARCH_PXA && MMU
- select FB_SYS_FILLRECT
- select FB_SYS_COPYAREA
- select FB_SYS_IMAGEBLIT
- select FB_SYS_FOPS
- select FB_DEFERRED_IO
- select FB_METRONOME
- help
- This enables support for the Metronome display controller used on
- the E-Ink AM-200 EPD devkit.
-
config FB_COBALT
tristate "Cobalt server LCD frame buffer support"
depends on FB && MIPS_COBALT
@@ -2041,6 +2021,19 @@ config XEN_FBDEV_FRONTEND
frame buffer driver. It communicates with a back-end
in another domain.
+config FB_METRONOME
+ tristate "E-Ink Metronome/8track controller support"
+ depends on FB
+ select FB_SYS_FILLRECT
+ select FB_SYS_COPYAREA
+ select FB_SYS_IMAGEBLIT
+ select FB_SYS_FOPS
+ select FB_DEFERRED_IO
+ help
+ This driver implements support for the E-Ink Metronome
+ controller. The pre-release name for this device was 8track
+ and could also have been called by some vendors as PVI-nnnn.
+
source "drivers/video/omap/Kconfig"
source "drivers/video/backlight/Kconfig"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index a6b55297a7f..ad0330bf9be 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -29,7 +29,6 @@ obj-$(CONFIG_FB_DEFERRED_IO) += fb_defio.o
# Hardware specific drivers go first
obj-$(CONFIG_FB_AMIGA) += amifb.o c2p.o
-obj-$(CONFIG_FB_AM200EPD) += am200epd.o
obj-$(CONFIG_FB_ARC) += arcfb.o
obj-$(CONFIG_FB_CLPS711X) += clps711xfb.o
obj-$(CONFIG_FB_CYBER2000) += cyber2000fb.o
diff --git a/drivers/video/am200epd.c b/drivers/video/am200epd.c
deleted file mode 100644
index 0c35b8b0160..00000000000
--- a/drivers/video/am200epd.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * linux/drivers/video/am200epd.c -- Platform device for AM200 EPD kit
- *
- * Copyright (C) 2008, Jaya Kumar
- *
- * 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.
- *
- * Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
- *
- * This work was made possible by help and equipment support from E-Ink
- * Corporation. http://support.eink.com/community
- *
- * This driver is written to be used with the Metronome display controller.
- * on the AM200 EPD prototype kit/development kit with an E-Ink 800x600
- * Vizplex EPD on a Gumstix board using the Lyre interface board.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/list.h>
-#include <linux/uaccess.h>
-#include <linux/irq.h>
-
-#include <video/metronomefb.h>
-
-#include <mach/pxa-regs.h>
-
-/* register offsets for gpio control */
-#define LED_GPIO_PIN 51
-#define STDBY_GPIO_PIN 48
-#define RST_GPIO_PIN 49
-#define RDY_GPIO_PIN 32
-#define ERR_GPIO_PIN 17
-#define PCBPWR_GPIO_PIN 16
-
-#define AF_SEL_GPIO_N 0x3
-#define GAFR0_U_OFFSET(pin) ((pin - 16) * 2)
-#define GAFR1_L_OFFSET(pin) ((pin - 32) * 2)
-#define GAFR1_U_OFFSET(pin) ((pin - 48) * 2)
-#define GPDR1_OFFSET(pin) (pin - 32)
-#define GPCR1_OFFSET(pin) (pin - 32)
-#define GPSR1_OFFSET(pin) (pin - 32)
-#define GPCR0_OFFSET(pin) (pin)
-#define GPSR0_OFFSET(pin) (pin)
-
-static void am200_set_gpio_output(int pin, int val)
-{
- u8 index;
-
- index = pin >> 4;
-
- switch (index) {
- case 1:
- if (val)
- GPSR0 |= (1 << GPSR0_OFFSET(pin));
- else
- GPCR0 |= (1 << GPCR0_OFFSET(pin));
- break;
- case 2:
- break;
- case 3:
- if (val)
- GPSR1 |= (1 << GPSR1_OFFSET(pin));
- else
- GPCR1 |= (1 << GPCR1_OFFSET(pin));
- break;
- default:
- printk(KERN_ERR "unimplemented\n");
- }
-}
-
-static void __devinit am200_init_gpio_pin(int pin, int dir)
-{
- u8 index;
- /* dir 0 is output, 1 is input
- - do 2 things here:
- - set gpio alternate function to standard gpio
- - set gpio direction to input or output */
-
- index = pin >> 4;
- switch (index) {
- case 1:
- GAFR0_U &= ~(AF_SEL_GPIO_N << GAFR0_U_OFFSET(pin));
-
- if (dir)
- GPDR0 &= ~(1 << pin);
- else
- GPDR0 |= (1 << pin);
- break;
- case 2:
- GAFR1_L &= ~(AF_SEL_GPIO_N << GAFR1_L_OFFSET(pin));
-
- if (dir)
- GPDR1 &= ~(1 << GPDR1_OFFSET(pin));
- else
- GPDR1 |= (1 << GPDR1_OFFSET(pin));
- break;
- case 3:
- GAFR1_U &= ~(AF_SEL_GPIO_N << GAFR1_U_OFFSET(pin));
-
- if (dir)
- GPDR1 &= ~(1 << GPDR1_OFFSET(pin));
- else
- GPDR1 |= (1 << GPDR1_OFFSET(pin));
- break;
- default:
- printk(KERN_ERR "unimplemented\n");
- }
-}
-
-static void am200_init_gpio_regs(struct metronomefb_par *par)
-{
- am200_init_gpio_pin(LED_GPIO_PIN, 0);
- am200_set_gpio_output(LED_GPIO_PIN, 0);
-
- am200_init_gpio_pin(STDBY_GPIO_PIN, 0);
- am200_set_gpio_output(STDBY_GPIO_PIN, 0);
-
- am200_init_gpio_pin(RST_GPIO_PIN, 0);
- am200_set_gpio_output(RST_GPIO_PIN, 0);
-
- am200_init_gpio_pin(RDY_GPIO_PIN, 1);
-
- am200_init_gpio_pin(ERR_GPIO_PIN, 1);
-
- am200_init_gpio_pin(PCBPWR_GPIO_PIN, 0);
- am200_set_gpio_output(PCBPWR_GPIO_PIN, 0);
-}
-
-static void am200_disable_lcd_controller(struct metronomefb_par *par)
-{
- LCSR = 0xffffffff; /* Clear LCD Status Register */
- LCCR0 |= LCCR0_DIS; /* Disable LCD Controller */
-
- /* we reset and just wait for things to settle */
- msleep(200);
-}
-
-static void am200_enable_lcd_controller(struct metronomefb_par *par)
-{
- LCSR = 0xffffffff;
- FDADR0 = par->metromem_desc_dma;
- LCCR0 |= LCCR0_ENB;
-}
-
-static void am200_init_lcdc_regs(struct metronomefb_par *par)
-{
- /* here we do:
- - disable the lcd controller
- - setup lcd control registers
- - setup dma descriptor
- - reenable lcd controller
- */
-
- /* disable the lcd controller */
- am200_disable_lcd_controller(par);
-
- /* setup lcd control registers */
- LCCR0 = LCCR0_LDM | LCCR0_SFM | LCCR0_IUM | LCCR0_EFM | LCCR0_PAS
- | LCCR0_QDM | LCCR0_BM | LCCR0_OUM;
-
- LCCR1 = (par->info->var.xres/2 - 1) /* pixels per line */
- | (27 << 10) /* hsync pulse width - 1 */
- | (33 << 16) /* eol pixel count */
- | (33 << 24); /* bol pixel count */
-
- LCCR2 = (par->info->var.yres - 1) /* lines per panel */
- | (24 << 10) /* vsync pulse width - 1 */
- | (2 << 16) /* eof pixel count */
- | (0 << 24); /* bof pixel count */
-
- LCCR3 = 2 /* pixel clock divisor */
- | (24 << 8) /* AC Bias pin freq */
- | LCCR3_16BPP /* BPP */
- | LCCR3_PCP; /* PCP falling edge */
-
-}
-
-static void am200_post_dma_setup(struct metronomefb_par *par)
-{
- par->metromem_desc->mFDADR0 = par->metromem_desc_dma;
- par->metromem_desc->mFSADR0 = par->metromem_dma;
- par->metromem_desc->mFIDR0 = 0;
- par->metromem_desc->mLDCMD0 = par->info->var.xres
- * par->info->var.yres;
- am200_enable_lcd_controller(par);
-}
-
-static void am200_free_irq(struct fb_info *info)
-{
- free_irq(IRQ_GPIO(RDY_GPIO_PIN), info);
-}
-
-static irqreturn_t am200_handle_irq(int irq, void *dev_id)
-{
- struct fb_info *info = dev_id;
- struct metronomefb_par *par = info->par;
-
- wake_up_interruptible(&par->waitq);
- return IRQ_HANDLED;
-}
-
-static int am200_setup_irq(struct fb_info *info)
-{
- int retval;
-
- retval = request_irq(IRQ_GPIO(RDY_GPIO_PIN), am200_handle_irq,
- IRQF_DISABLED, "AM200", info);
- if (retval) {
- printk(KERN_ERR "am200epd: request_irq failed: %d\n", retval);
- return retval;
- }
-
- return set_irq_type(IRQ_GPIO(RDY_GPIO_PIN), IRQ_TYPE_EDGE_FALLING);
-}
-
-static void am200_set_rst(struct metronomefb_par *par, int state)
-{
- am200_set_gpio_output(RST_GPIO_PIN, state);
-}
-
-static void am200_set_stdby(struct metronomefb_par *par, int state)
-{
- am200_set_gpio_output(STDBY_GPIO_PIN, state);
-}
-
-static int am200_wait_event(struct metronomefb_par *par)
-{
- return wait_event_timeout(par->waitq, (GPLR1 & 0x01), HZ);
-}
-
-static int am200_wait_event_intr(struct metronomefb_par *par)
-{
- return wait_event_interruptible_timeout(par->waitq, (GPLR1 & 0x01), HZ);
-}
-
-static struct metronome_board am200_board = {
- .owner = THIS_MODULE,
- .free_irq = am200_free_irq,
- .setup_irq = am200_setup_irq,
- .init_gpio_regs = am200_init_gpio_regs,
- .init_lcdc_regs = am200_init_lcdc_regs,
- .post_dma_setup = am200_post_dma_setup,
- .set_rst = am200_set_rst,
- .set_stdby = am200_set_stdby,
- .met_wait_event = am200_wait_event,
- .met_wait_event_intr = am200_wait_event_intr,
-};
-
-static struct platform_device *am200_device;
-
-static int __init am200_init(void)
-{
- int ret;
-
- /* request our platform independent driver */
- request_module("metronomefb");
-
- am200_device = platform_device_alloc("metronomefb", -1);
- if (!am200_device)
- return -ENOMEM;
-
- platform_device_add_data(am200_device, &am200_board,
- sizeof(am200_board));
-
- /* this _add binds metronomefb to am200. metronomefb refcounts am200 */
- ret = platform_device_add(am200_device);
-
- if (ret)
- platform_device_put(am200_device);
-
- return ret;
-}
-
-static void __exit am200_exit(void)
-{
- platform_device_unregister(am200_device);
-}
-
-module_init(am200_init);
-module_exit(am200_exit);
-
-MODULE_DESCRIPTION("board driver for am200 metronome epd kit");
-MODULE_AUTHOR("Jaya Kumar");
-MODULE_LICENSE("GPL");
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 5a24c6411d3..d38fd521742 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -208,6 +208,36 @@ static unsigned long compute_hozval(unsigned long xres, unsigned long lcdcon2)
return value;
}
+static void atmel_lcdfb_stop_nowait(struct atmel_lcdfb_info *sinfo)
+{
+ /* Turn off the LCD controller and the DMA controller */
+ lcdc_writel(sinfo, ATMEL_LCDC_PWRCON,
+ sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET);
+
+ /* Wait for the LCDC core to become idle */
+ while (lcdc_readl(sinfo, ATMEL_LCDC_PWRCON) & ATMEL_LCDC_BUSY)
+ msleep(10);
+
+ lcdc_writel(sinfo, ATMEL_LCDC_DMACON, 0);
+}
+
+static void atmel_lcdfb_stop(struct atmel_lcdfb_info *sinfo)
+{
+ atmel_lcdfb_stop_nowait(sinfo);
+
+ /* Wait for DMA engine to become idle... */
+ while (lcdc_readl(sinfo, ATMEL_LCDC_DMACON) & ATMEL_LCDC_DMABUSY)
+ msleep(10);
+}
+
+static void atmel_lcdfb_start(struct atmel_lcdfb_info *sinfo)
+{
+ lcdc_writel(sinfo, ATMEL_LCDC_DMACON, sinfo->default_dmacon);
+ lcdc_writel(sinfo, ATMEL_LCDC_PWRCON,
+ (sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET)
+ | ATMEL_LCDC_PWR);
+}
+
static void atmel_lcdfb_update_dma(struct fb_info *info,
struct fb_var_screeninfo *var)
{
@@ -378,6 +408,10 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
var->red.offset = 11;
var->blue.offset = 0;
var->green.length = 6;
+ } else if (sinfo->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB555) {
+ var->red.offset = 10;
+ var->blue.offset = 0;
+ var->green.length = 5;
} else {
/* BGR:555 mode */
var->red.offset = 0;
@@ -420,26 +454,8 @@ static void atmel_lcdfb_reset(struct atmel_lcdfb_info *sinfo)
{
might_sleep();
- /* LCD power off */
- lcdc_writel(sinfo, ATMEL_LCDC_PWRCON, sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET);
-
- /* wait for the LCDC core to become idle */
- while (lcdc_readl(sinfo, ATMEL_LCDC_PWRCON) & ATMEL_LCDC_BUSY)
- msleep(10);
-
- /* DMA disable */
- lcdc_writel(sinfo, ATMEL_LCDC_DMACON, 0);
-
- /* wait for DMA engine to become idle */
- while (lcdc_readl(sinfo, ATMEL_LCDC_DMACON) & ATMEL_LCDC_DMABUSY)
- msleep(10);
-
- /* LCD power on */
- lcdc_writel(sinfo, ATMEL_LCDC_PWRCON,
- (sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET) | ATMEL_LCDC_PWR);
-
- /* DMA enable */
- lcdc_writel(sinfo, ATMEL_LCDC_DMACON, sinfo->default_dmacon);
+ atmel_lcdfb_stop(sinfo);
+ atmel_lcdfb_start(sinfo);
}
/**
@@ -471,14 +487,7 @@ static int atmel_lcdfb_set_par(struct fb_info *info)
info->var.xres, info->var.yres,
info->var.xres_virtual, info->var.yres_virtual);
- /* Turn off the LCD controller and the DMA controller */
- lcdc_writel(sinfo, ATMEL_LCDC_PWRCON, sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET);
-
- /* Wait for the LCDC core to become idle */
- while (lcdc_readl(sinfo, ATMEL_LCDC_PWRCON) & ATMEL_LCDC_BUSY)
- msleep(10);
-
- lcdc_writel(sinfo, ATMEL_LCDC_DMACON, 0);
+ atmel_lcdfb_stop_nowait(sinfo);
if (info->var.bits_per_pixel == 1)
info->fix.visual = FB_VISUAL_MONO01;
@@ -583,13 +592,7 @@ static int atmel_lcdfb_set_par(struct fb_info *info)
while (lcdc_readl(sinfo, ATMEL_LCDC_DMACON) & ATMEL_LCDC_DMABUSY)
msleep(10);
- dev_dbg(info->device, " * re-enable DMA engine\n");
- /* ...and enable it with updated configuration */
- lcdc_writel(sinfo, ATMEL_LCDC_DMACON, sinfo->default_dmacon);
-
- dev_dbg(info->device, " * re-enable LCDC core\n");
- lcdc_writel(sinfo, ATMEL_LCDC_PWRCON,
- (sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET) | ATMEL_LCDC_PWR);
+ atmel_lcdfb_start(sinfo);
dev_dbg(info->device, " * DONE\n");
@@ -1032,11 +1035,20 @@ static int atmel_lcdfb_suspend(struct platform_device *pdev, pm_message_t mesg)
struct fb_info *info = platform_get_drvdata(pdev);
struct atmel_lcdfb_info *sinfo = info->par;
+ /*
+ * We don't want to handle interrupts while the clock is
+ * stopped. It may take forever.
+ */
+ lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);
+
sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_VAL);
lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, 0);
if (sinfo->atmel_lcdfb_power_control)
sinfo->atmel_lcdfb_power_control(0);
+
+ atmel_lcdfb_stop(sinfo);
atmel_lcdfb_stop_clock(sinfo);
+
return 0;
}
@@ -1046,9 +1058,15 @@ static int atmel_lcdfb_resume(struct platform_device *pdev)
struct atmel_lcdfb_info *sinfo = info->par;
atmel_lcdfb_start_clock(sinfo);
+ atmel_lcdfb_start(sinfo);
if (sinfo->atmel_lcdfb_power_control)
sinfo->atmel_lcdfb_power_control(1);
lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, sinfo->saved_lcdcon);
+
+ /* Enable FIFO & DMA errors */
+ lcdc_writel(sinfo, ATMEL_LCDC_IER, ATMEL_LCDC_UFLWI
+ | ATMEL_LCDC_OWRI | ATMEL_LCDC_MERI);
+
return 0;
}
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 452b770d8cc..c72a1356295 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -24,6 +24,13 @@ config LCD_CLASS_DEVICE
To have support for your specific LCD panel you will have to
select the proper drivers which depend on this option.
+config LCD_CORGI
+ tristate "LCD Panel support for SHARP corgi/spitz model"
+ depends on LCD_CLASS_DEVICE && SPI_MASTER && PXA_SHARPSL
+ help
+ Say y here to support the LCD panels usually found on SHARP
+ corgi (C7x0) and spitz (Cxx00) models.
+
config LCD_LTV350QV
tristate "Samsung LTV350QV LCD Panel"
depends on LCD_CLASS_DEVICE && SPI_MASTER
@@ -44,6 +51,14 @@ config LCD_ILI9320
If you have a panel based on the ILI9320 controller chip
then say y to include a power driver for it.
+config LCD_TDO24M
+ tristate "Toppoly TDO24M LCD Panels support"
+ depends on LCD_CLASS_DEVICE && SPI_MASTER
+ default n
+ help
+ If you have a Toppoly TDO24M series LCD panel, say y here to
+ include the support for it.
+
config LCD_VGG2432A4
tristate "VGG2432A4 LCM device support"
depends on BACKLIGHT_LCD_SUPPORT && LCD_CLASS_DEVICE && SPI_MASTER
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index b405aace803..3ec551eb472 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -1,10 +1,12 @@
# Backlight & LCD drivers
obj-$(CONFIG_LCD_CLASS_DEVICE) += lcd.o
+obj-$(CONFIG_LCD_CORGI) += corgi_lcd.o
obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
obj-$(CONFIG_LCD_ILI9320) += ili9320.o
obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
+obj-$(CONFIG_LCD_TDO24M) += tdo24m.o
obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o
diff --git a/drivers/video/backlight/corgi_lcd.c b/drivers/video/backlight/corgi_lcd.c
new file mode 100644
index 00000000000..2afd47eefe7
--- /dev/null
+++ b/drivers/video/backlight/corgi_lcd.c
@@ -0,0 +1,641 @@
+/*
+ * LCD/Backlight Driver for Sharp Zaurus Handhelds (various models)
+ *
+ * Copyright (c) 2004-2006 Richard Purdie
+ *
+ * Based on Sharp's 2.4 Backlight Driver
+ *
+ * Copyright (c) 2008 Marvell International Ltd.
+ * Converted to SPI device based LCD/Backlight device driver
+ * by Eric Miao <eric.miao@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/fb.h>
+#include <linux/lcd.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/corgi_lcd.h>
+#include <asm/mach/sharpsl_param.h>
+
+#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)
+
+/* Register Addresses */
+#define RESCTL_ADRS 0x00
+#define PHACTRL_ADRS 0x01
+#define DUTYCTRL_ADRS 0x02
+#define POWERREG0_ADRS 0x03
+#define POWERREG1_ADRS 0x04
+#define GPOR3_ADRS 0x05
+#define PICTRL_ADRS 0x06
+#define POLCTRL_ADRS 0x07
+
+/* Register Bit Definitions */
+#define RESCTL_QVGA 0x01
+#define RESCTL_VGA 0x00
+
+#define POWER1_VW_ON 0x01 /* VW Supply FET ON */
+#define POWER1_GVSS_ON 0x02 /* GVSS(-8V) Power Supply ON */
+#define POWER1_VDD_ON 0x04 /* VDD(8V),SVSS(-4V) Power Supply ON */
+
+#define POWER1_VW_OFF 0x00 /* VW Supply FET OFF */
+#define POWER1_GVSS_OFF 0x00 /* GVSS(-8V) Power Supply OFF */
+#define POWER1_VDD_OFF 0x00 /* VDD(8V),SVSS(-4V) Power Supply OFF */
+
+#define POWER0_COM_DCLK 0x01 /* COM Voltage DC Bias DAC Serial Data Clock */
+#define POWER0_COM_DOUT 0x02 /* COM Voltage DC Bias DAC Serial Data Out */
+#define POWER0_DAC_ON 0x04 /* DAC Power Supply ON */
+#define POWER0_COM_ON 0x08 /* COM Power Supply ON */
+#define POWER0_VCC5_ON 0x10 /* VCC5 Power Supply ON */
+
+#define POWER0_DAC_OFF 0x00 /* DAC Power Supply OFF */
+#define POWER0_COM_OFF 0x00 /* COM Power Supply OFF */
+#define POWER0_VCC5_OFF 0x00 /* VCC5 Power Supply OFF */
+
+#define PICTRL_INIT_STATE 0x01
+#define PICTRL_INIOFF 0x02
+#define PICTRL_POWER_DOWN 0x04
+#define PICTRL_COM_SIGNAL_OFF 0x08
+#define PICTRL_DAC_SIGNAL_OFF 0x10
+
+#define POLCTRL_SYNC_POL_FALL 0x01
+#define POLCTRL_EN_POL_FALL 0x02
+#define POLCTRL_DATA_POL_FALL 0x04
+#define POLCTRL_SYNC_ACT_H 0x08
+#define POLCTRL_EN_ACT_L 0x10
+
+#define POLCTRL_SYNC_POL_RISE 0x00
+#define POLCTRL_EN_POL_RISE 0x00
+#define POLCTRL_DATA_POL_RISE 0x00
+#define POLCTRL_SYNC_ACT_L 0x00
+#define POLCTRL_EN_ACT_H 0x00
+
+#define PHACTRL_PHASE_MANUAL 0x01
+#define DEFAULT_PHAD_QVGA (9)
+#define DEFAULT_COMADJ (125)
+
+struct corgi_lcd {
+ struct spi_device *spi_dev;
+ struct lcd_device *lcd_dev;
+ struct backlight_device *bl_dev;
+
+ int limit_mask;
+ int intensity;
+ int power;
+ int mode;
+ char buf[2];
+
+ int gpio_backlight_on;
+ int gpio_backlight_cont;
+ int gpio_backlight_cont_inverted;
+
+ void (*kick_battery)(void);
+};
+
+static int corgi_ssp_lcdtg_send(struct corgi_lcd *lcd, int reg, uint8_t val);
+
+static struct corgi_lcd *the_corgi_lcd;
+static unsigned long corgibl_flags;
+#define CORGIBL_SUSPENDED 0x01
+#define CORGIBL_BATTLOW 0x02
+
+/*
+ * This is only a psuedo I2C interface. We can't use the standard kernel
+ * routines as the interface is write only. We just assume the data is acked...
+ */
+static void lcdtg_ssp_i2c_send(struct corgi_lcd *lcd, uint8_t data)
+{
+ corgi_ssp_lcdtg_send(lcd, POWERREG0_ADRS, data);
+ udelay(10);
+}
+
+static void lcdtg_i2c_send_bit(struct corgi_lcd *lcd, uint8_t data)
+{
+ lcdtg_ssp_i2c_send(lcd, data);
+ lcdtg_ssp_i2c_send(lcd, data | POWER0_COM_DCLK);
+ lcdtg_ssp_i2c_send(lcd, data);
+}
+
+static void lcdtg_i2c_send_start(struct corgi_lcd *lcd, uint8_t base)
+{
+ lcdtg_ssp_i2c_send(lcd, base | POWER0_COM_DCLK | POWER0_COM_DOUT);
+ lcdtg_ssp_i2c_send(lcd, base | POWER0_COM_DCLK);
+ lcdtg_ssp_i2c_send(lcd, base);
+}
+
+static void lcdtg_i2c_send_stop(struct corgi_lcd *lcd, uint8_t base)
+{
+ lcdtg_ssp_i2c_send(lcd, base);
+ lcdtg_ssp_i2c_send(lcd, base | POWER0_COM_DCLK);
+ lcdtg_ssp_i2c_send(lcd, base | POWER0_COM_DCLK | POWER0_COM_DOUT);
+}
+
+static void lcdtg_i2c_send_byte(struct corgi_lcd *lcd,
+ uint8_t base, uint8_t data)
+{
+ int i;
+ for (i = 0; i < 8; i++) {
+ if (data & 0x80)
+ lcdtg_i2c_send_bit(lcd, base | POWER0_COM_DOUT);
+ else
+ lcdtg_i2c_send_bit(lcd, base);
+ data <<= 1;
+ }
+}
+
+static void lcdtg_i2c_wait_ack(struct corgi_lcd *lcd, uint8_t base)
+{
+ lcdtg_i2c_send_bit(lcd, base);
+}
+
+static void lcdtg_set_common_voltage(struct corgi_lcd *lcd,
+ uint8_t base_data, uint8_t data)
+{
+ /* Set Common Voltage to M62332FP via I2C */
+ lcdtg_i2c_send_start(lcd, base_data);
+ lcdtg_i2c_send_byte(lcd, base_data, 0x9c);
+ lcdtg_i2c_wait_ack(lcd, base_data);
+ lcdtg_i2c_send_byte(lcd, base_data, 0x00);
+ lcdtg_i2c_wait_ack(lcd, base_data);
+ lcdtg_i2c_send_byte(lcd, base_data, data);
+ lcdtg_i2c_wait_ack(lcd, base_data);
+ lcdtg_i2c_send_stop(lcd, base_data);
+}
+
+static int corgi_ssp_lcdtg_send(struct corgi_lcd *lcd, int adrs, uint8_t data)
+{
+ struct spi_message msg;
+ struct spi_transfer xfer = {
+ .len = 1,
+ .cs_change = 1,
+ .tx_buf = lcd->buf,
+ };
+
+ lcd->buf[0] = ((adrs & 0x07) << 5) | (data & 0x1f);
+ spi_message_init(&msg);
+ spi_message_add_tail(&xfer, &msg);
+
+ return spi_sync(lcd->spi_dev, &msg);
+}
+
+/* Set Phase Adjust */
+static void lcdtg_set_phadadj(struct corgi_lcd *lcd, int mode)
+{
+ int adj;
+
+ switch(mode) {
+ case CORGI_LCD_MODE_VGA:
+ /* Setting for VGA */
+ adj = sharpsl_param.phadadj;
+ adj = (adj < 0) ? PHACTRL_PHASE_MANUAL :
+ PHACTRL_PHASE_MANUAL | ((adj & 0xf) << 1);
+ break;
+ case CORGI_LCD_MODE_QVGA:
+ default:
+ /* Setting for QVGA */
+ adj = (DEFAULT_PHAD_QVGA << 1) | PHACTRL_PHASE_MANUAL;
+ break;
+ }
+
+ corgi_ssp_lcdtg_send(lcd, PHACTRL_ADRS, adj);
+}
+
+static void corgi_lcd_power_on(struct corgi_lcd *lcd)
+{
+ int comadj;
+
+ /* Initialize Internal Logic & Port */
+ corgi_ssp_lcdtg_send(lcd, PICTRL_ADRS,
+ PICTRL_POWER_DOWN | PICTRL_INIOFF |
+ PICTRL_INIT_STATE | PICTRL_COM_SIGNAL_OFF |
+ PICTRL_DAC_SIGNAL_OFF);
+
+ corgi_ssp_lcdtg_send(lcd, POWERREG0_ADRS,
+ POWER0_COM_DCLK | POWER0_COM_DOUT | POWER0_DAC_OFF |
+ POWER0_COM_OFF | POWER0_VCC5_OFF);
+
+ corgi_ssp_lcdtg_send(lcd, POWERREG1_ADRS,
+ POWER1_VW_OFF | POWER1_GVSS_OFF | POWER1_VDD_OFF);
+
+ /* VDD(+8V), SVSS(-4V) ON */
+ corgi_ssp_lcdtg_send(lcd, POWERREG1_ADRS,
+ POWER1_VW_OFF | POWER1_GVSS_OFF | POWER1_VDD_ON);
+ mdelay(3);
+
+ /* DAC ON */
+ corgi_ssp_lcdtg_send(lcd, POWERREG0_ADRS,
+ POWER0_COM_DCLK | POWER0_COM_DOUT | POWER0_DAC_ON |
+ POWER0_COM_OFF | POWER0_VCC5_OFF);
+
+ /* INIB = H, INI = L */
+ /* PICTL[0] = H , PICTL[1] = PICTL[2] = PICTL[4] = L */
+ corgi_ssp_lcdtg_send(lcd, PICTRL_ADRS,
+ PICTRL_INIT_STATE | PICTRL_COM_SIGNAL_OFF);
+
+ /* Set Common Voltage */
+ comadj = sharpsl_param.comadj;
+ if (comadj < 0)
+ comadj = DEFAULT_COMADJ;
+
+ lcdtg_set_common_voltage(lcd, POWER0_DAC_ON | POWER0_COM_OFF |
+ POWER0_VCC5_OFF, comadj);
+
+ /* VCC5 ON, DAC ON */
+ corgi_ssp_lcdtg_send(lcd, POWERREG0_ADRS,
+ POWER0_COM_DCLK | POWER0_COM_DOUT | POWER0_DAC_ON |
+ POWER0_COM_OFF | POWER0_VCC5_ON);
+
+ /* GVSS(-8V) ON, VDD ON */
+ corgi_ssp_lcdtg_send(lcd, POWERREG1_ADRS,
+ POWER1_VW_OFF | POWER1_GVSS_ON | POWER1_VDD_ON);
+ mdelay(2);
+
+ /* COM SIGNAL ON (PICTL[3] = L) */
+ corgi_ssp_lcdtg_send(lcd, PICTRL_ADRS, PICTRL_INIT_STATE);
+
+ /* COM ON, DAC ON, VCC5_ON */
+ corgi_ssp_lcdtg_send(lcd, POWERREG0_ADRS,
+ POWER0_COM_DCLK | POWER0_COM_DOUT | POWER0_DAC_ON |
+ POWER0_COM_ON | POWER0_VCC5_ON);
+
+ /* VW ON, GVSS ON, VDD ON */
+ corgi_ssp_lcdtg_send(lcd, POWERREG1_ADRS,
+ POWER1_VW_ON | POWER1_GVSS_ON | POWER1_VDD_ON);
+
+ /* Signals output enable */
+ corgi_ssp_lcdtg_send(lcd, PICTRL_ADRS, 0);
+
+ /* Set Phase Adjust */
+ lcdtg_set_phadadj(lcd, lcd->mode);
+
+ /* Initialize for Input Signals from ATI */
+ corgi_ssp_lcdtg_send(lcd, POLCTRL_ADRS,
+ POLCTRL_SYNC_POL_RISE | POLCTRL_EN_POL_RISE |
+ POLCTRL_DATA_POL_RISE | POLCTRL_SYNC_ACT_L |
+ POLCTRL_EN_ACT_H);
+ udelay(1000);
+
+ switch (lcd->mode) {
+ case CORGI_LCD_MODE_VGA:
+ corgi_ssp_lcdtg_send(lcd, RESCTL_ADRS, RESCTL_VGA);
+ break;
+ case CORGI_LCD_MODE_QVGA:
+ default:
+ corgi_ssp_lcdtg_send(lcd, RESCTL_ADRS, RESCTL_QVGA);
+ break;
+ }
+}
+
+static void corgi_lcd_power_off(struct corgi_lcd *lcd)
+{
+ /* 60Hz x 2 frame = 16.7msec x 2 = 33.4 msec */
+ msleep(34);
+
+ /* (1)VW OFF */
+ corgi_ssp_lcdtg_send(lcd, POWERREG1_ADRS,
+ POWER1_VW_OFF | POWER1_GVSS_ON | POWER1_VDD_ON);
+
+ /* (2)COM OFF */
+ corgi_ssp_lcdtg_send(lcd, PICTRL_ADRS, PICTRL_COM_SIGNAL_OFF);
+ corgi_ssp_lcdtg_send(lcd, POWERREG0_ADRS,
+ POWER0_DAC_ON | POWER0_COM_OFF | POWER0_VCC5_ON);
+
+ /* (3)Set Common Voltage Bias 0V */
+ lcdtg_set_common_voltage(lcd, POWER0_DAC_ON | POWER0_COM_OFF |
+ POWER0_VCC5_ON, 0);
+
+ /* (4)GVSS OFF */
+ corgi_ssp_lcdtg_send(lcd, POWERREG1_ADRS,
+ POWER1_VW_OFF | POWER1_GVSS_OFF | POWER1_VDD_ON);
+
+ /* (5)VCC5 OFF */
+ corgi_ssp_lcdtg_send(lcd, POWERREG0_ADRS,
+ POWER0_DAC_ON | POWER0_COM_OFF | POWER0_VCC5_OFF);
+
+ /* (6)Set PDWN, INIOFF, DACOFF */
+ corgi_ssp_lcdtg_send(lcd, PICTRL_ADRS,
+ PICTRL_INIOFF | PICTRL_DAC_SIGNAL_OFF |
+ PICTRL_POWER_DOWN | PICTRL_COM_SIGNAL_OFF);
+
+ /* (7)DAC OFF */
+ corgi_ssp_lcdtg_send(lcd, POWERREG0_ADRS,
+ POWER0_DAC_OFF | POWER0_COM_OFF | POWER0_VCC5_OFF);
+
+ /* (8)VDD OFF */
+ corgi_ssp_lcdtg_send(lcd, POWERREG1_ADRS,
+ POWER1_VW_OFF | POWER1_GVSS_OFF | POWER1_VDD_OFF);
+}
+
+static int corgi_lcd_set_mode(struct lcd_device *ld, struct fb_videomode *m)
+{
+ struct corgi_lcd *lcd = dev_get_drvdata(&ld->dev);
+ int mode = CORGI_LCD_MODE_QVGA;
+
+ if (m->xres == 640 || m->xres == 480)
+ mode = CORGI_LCD_MODE_VGA;
+
+ if (lcd->mode == mode)
+ return 0;
+
+ lcdtg_set_phadadj(lcd, mode);
+
+ switch (mode) {
+ case CORGI_LCD_MODE_VGA:
+ corgi_ssp_lcdtg_send(lcd, RESCTL_ADRS, RESCTL_VGA);
+ break;
+ case CORGI_LCD_MODE_QVGA:
+ default:
+ corgi_ssp_lcdtg_send(lcd, RESCTL_ADRS, RESCTL_QVGA);
+ break;
+ }
+
+ lcd->mode = mode;
+ return 0;
+}
+
+static int corgi_lcd_set_power(struct lcd_device *ld, int power)
+{
+ struct corgi_lcd *lcd = dev_get_drvdata(&ld->dev);
+
+ if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
+ corgi_lcd_power_on(lcd);
+
+ if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
+ corgi_lcd_power_off(lcd);
+
+ lcd->power = power;
+ return 0;
+}
+
+static int corgi_lcd_get_power(struct lcd_device *ld)
+{
+ struct corgi_lcd *lcd = dev_get_drvdata(&ld->dev);
+
+ return lcd->power;
+}
+
+static struct lcd_ops corgi_lcd_ops = {
+ .get_power = corgi_lcd_get_power,
+ .set_power = corgi_lcd_set_power,
+ .set_mode = corgi_lcd_set_mode,
+};
+
+static int corgi_bl_get_intensity(struct backlight_device *bd)
+{
+ struct corgi_lcd *lcd = dev_get_drvdata(&bd->dev);
+
+ return lcd->intensity;
+}
+
+static int corgi_bl_set_intensity(struct corgi_lcd *lcd, int intensity)
+{
+ int cont;
+
+ if (intensity > 0x10)
+ intensity += 0x10;
+
+ corgi_ssp_lcdtg_send(lcd, DUTYCTRL_ADRS, intensity);
+
+ /* Bit 5 via GPIO_BACKLIGHT_CONT */
+ cont = !!(intensity & 0x20) ^ lcd->gpio_backlight_cont_inverted;
+
+ if (gpio_is_valid(lcd->gpio_backlight_cont))
+ gpio_set_value(lcd->gpio_backlight_cont, cont);
+
+ if (gpio_is_valid(lcd->gpio_backlight_on))
+ gpio_set_value(lcd->gpio_backlight_on, intensity);
+
+ if (lcd->kick_battery)
+ lcd->kick_battery();
+
+ lcd->intensity = intensity;
+ return 0;
+}
+
+static int corgi_bl_update_status(struct backlight_device *bd)
+{
+ struct corgi_lcd *lcd = dev_get_drvdata(&bd->dev);
+ int intensity = bd->props.brightness;
+
+ if (bd->props.power != FB_BLANK_UNBLANK)
+ intensity = 0;
+
+ if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+ intensity = 0;
+
+ if (corgibl_flags & CORGIBL_SUSPENDED)
+ intensity = 0;
+ if (corgibl_flags & CORGIBL_BATTLOW)
+ intensity &= lcd->limit_mask;
+
+ return corgi_bl_set_intensity(lcd, intensity);
+}
+
+void corgibl_limit_intensity(int limit)
+{
+ if (limit)
+ corgibl_flags |= CORGIBL_BATTLOW;
+ else
+ corgibl_flags &= ~CORGIBL_BATTLOW;
+
+ backlight_update_status(the_corgi_lcd->bl_dev);
+}
+EXPORT_SYMBOL(corgibl_limit_intensity);
+
+static struct backlight_ops corgi_bl_ops = {
+ .get_brightness = corgi_bl_get_intensity,
+ .update_status = corgi_bl_update_status,
+};
+
+#ifdef CONFIG_PM
+static int corgi_lcd_suspend(struct spi_device *spi, pm_message_t state)
+{
+ struct corgi_lcd *lcd = dev_get_drvdata(&spi->dev);
+
+ corgibl_flags |= CORGIBL_SUSPENDED;
+ corgi_bl_set_intensity(lcd, 0);
+ corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_POWERDOWN);
+ return 0;
+}
+
+static int corgi_lcd_resume(struct spi_device *spi)
+{
+ struct corgi_lcd *lcd = dev_get_drvdata(&spi->dev);
+
+ corgibl_flags &= ~CORGIBL_SUSPENDED;
+ corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_UNBLANK);
+ backlight_update_status(lcd->bl_dev);
+ return 0;
+}
+#else
+#define corgi_lcd_suspend NULL
+#define corgi_lcd_resume NULL
+#endif
+
+static int setup_gpio_backlight(struct corgi_lcd *lcd,
+ struct corgi_lcd_platform_data *pdata)
+{
+ struct spi_device *spi = lcd->spi_dev;
+ int err;
+
+ lcd->gpio_backlight_on = -1;
+ lcd->gpio_backlight_cont = -1;
+
+ if (gpio_is_valid(pdata->gpio_backlight_on)) {
+ err = gpio_request(pdata->gpio_backlight_on, "BL_ON");
+ if (err) {
+ dev_err(&spi->dev, "failed to request GPIO%d for "
+ "backlight_on\n", pdata->gpio_backlight_on);
+ return err;
+ }
+
+ lcd->gpio_backlight_on = pdata->gpio_backlight_on;
+ gpio_direction_output(lcd->gpio_backlight_on, 0);
+ }
+
+ if (gpio_is_valid(pdata->gpio_backlight_cont)) {
+ err = gpio_request(pdata->gpio_backlight_cont, "BL_CONT");
+ if (err) {
+ dev_err(&spi->dev, "failed to request GPIO%d for "
+ "backlight_cont\n", pdata->gpio_backlight_cont);
+ goto err_free_backlight_on;
+ }
+
+ lcd->gpio_backlight_cont = pdata->gpio_backlight_cont;
+
+ /* spitz and akita use both GPIOs for backlight, and
+ * have inverted polarity of GPIO_BACKLIGHT_CONT
+ */
+ if (gpio_is_valid(lcd->gpio_backlight_on)) {
+ lcd->gpio_backlight_cont_inverted = 1;
+ gpio_direction_output(lcd->gpio_backlight_cont, 1);
+ } else {
+ lcd->gpio_backlight_cont_inverted = 0;
+ gpio_direction_output(lcd->gpio_backlight_cont, 0);
+ }
+ }
+ return 0;
+
+err_free_backlight_on:
+ if (gpio_is_valid(lcd->gpio_backlight_on))
+ gpio_free(lcd->gpio_backlight_on);
+ return err;
+}
+
+static int __devinit corgi_lcd_probe(struct spi_device *spi)
+{
+ struct corgi_lcd_platform_data *pdata = spi->dev.platform_data;
+ struct corgi_lcd *lcd;
+ int ret = 0;
+
+ if (pdata == NULL) {
+ dev_err(&spi->dev, "platform data not available\n");
+ return -EINVAL;
+ }
+
+ lcd = kzalloc(sizeof(struct corgi_lcd), GFP_KERNEL);
+ if (!lcd) {
+ dev_err(&spi->dev, "failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
+ lcd->spi_dev = spi;
+
+ lcd->lcd_dev = lcd_device_register("corgi_lcd", &spi->dev,
+ lcd, &corgi_lcd_ops);
+ if (IS_ERR(lcd->lcd_dev)) {
+ ret = PTR_ERR(lcd->lcd_dev);
+ goto err_free_lcd;
+ }
+ lcd->power = FB_BLANK_POWERDOWN;
+ lcd->mode = (pdata) ? pdata->init_mode : CORGI_LCD_MODE_VGA;
+
+ lcd->bl_dev = backlight_device_register("corgi_bl", &spi->dev,
+ lcd, &corgi_bl_ops);
+ if (IS_ERR(lcd->bl_dev)) {
+ ret = PTR_ERR(lcd->bl_dev);
+ goto err_unregister_lcd;
+ }
+ lcd->bl_dev->props.max_brightness = pdata->max_intensity;
+ lcd->bl_dev->props.brightness = pdata->default_intensity;
+ lcd->bl_dev->props.power = FB_BLANK_UNBLANK;
+
+ ret = setup_gpio_backlight(lcd, pdata);
+ if (ret)
+ goto err_unregister_bl;
+
+ lcd->kick_battery = pdata->kick_battery;
+
+ dev_set_drvdata(&spi->dev, lcd);
+ corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_UNBLANK);
+ backlight_update_status(lcd->bl_dev);
+
+ lcd->limit_mask = pdata->limit_mask;
+ the_corgi_lcd = lcd;
+ return 0;
+
+err_unregister_bl:
+ backlight_device_unregister(lcd->bl_dev);
+err_unregister_lcd:
+ lcd_device_unregister(lcd->lcd_dev);
+err_free_lcd:
+ kfree(lcd);
+ return ret;
+}
+
+static int __devexit corgi_lcd_remove(struct spi_device *spi)
+{
+ struct corgi_lcd *lcd = dev_get_drvdata(&spi->dev);
+
+ lcd->bl_dev->props.power = FB_BLANK_UNBLANK;
+ lcd->bl_dev->props.brightness = 0;
+ backlight_update_status(lcd->bl_dev);
+ backlight_device_unregister(lcd->bl_dev);
+
+ if (gpio_is_valid(lcd->gpio_backlight_on))
+ gpio_free(lcd->gpio_backlight_on);
+
+ if (gpio_is_valid(lcd->gpio_backlight_cont))
+ gpio_free(lcd->gpio_backlight_cont);
+
+ corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_POWERDOWN);
+ lcd_device_unregister(lcd->lcd_dev);
+ kfree(lcd);
+
+ return 0;
+}
+
+static struct spi_driver corgi_lcd_driver = {
+ .driver = {
+ .name = "corgi-lcd",
+ .owner = THIS_MODULE,
+ },
+ .probe = corgi_lcd_probe,
+ .remove = __devexit_p(corgi_lcd_remove),
+ .suspend = corgi_lcd_suspend,
+ .resume = corgi_lcd_resume,
+};
+
+static int __init corgi_lcd_init(void)
+{
+ return spi_register_driver(&corgi_lcd_driver);
+}
+module_init(corgi_lcd_init);
+
+static void __exit corgi_lcd_exit(void)
+{
+ spi_unregister_driver(&corgi_lcd_driver);
+}
+module_exit(corgi_lcd_exit);
+
+MODULE_DESCRIPTION("LCD and backlight driver for SHARP C7x0/Cxx00");
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index b15b2b84a6f..8e1731d3b22 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -27,14 +27,26 @@ static int fb_notifier_callback(struct notifier_block *self,
struct fb_event *evdata = data;
/* If we aren't interested in this event, skip it immediately ... */
- if (event != FB_EVENT_BLANK)
+ switch (event) {
+ case FB_EVENT_BLANK:
+ case FB_EVENT_MODE_CHANGE:
+ case FB_EVENT_MODE_CHANGE_ALL:
+ break;
+ default:
return 0;
+ }
ld = container_of(self, struct lcd_device, fb_notif);
+ if (!ld->ops)
+ return 0;
+
mutex_lock(&ld->ops_lock);
- if (ld->ops)
- if (!ld->ops->check_fb || ld->ops->check_fb(ld, evdata->info))
+ if (!ld->ops->check_fb || ld->ops->check_fb(ld, evdata->info)) {
+ if (event == FB_EVENT_BLANK)
ld->ops->set_power(ld, *(int *)evdata->data);
+ else
+ ld->ops->set_mode(ld, evdata->data);
+ }
mutex_unlock(&ld->ops_lock);
return 0;
}
diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c
new file mode 100644
index 00000000000..8427669162e
--- /dev/null
+++ b/drivers/video/backlight/tdo24m.c
@@ -0,0 +1,396 @@
+/*
+ * tdo24m - SPI-based drivers for Toppoly TDO24M series LCD panels
+ *
+ * Copyright (C) 2008 Marvell International Ltd.
+ * Eric Miao <eric.miao@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * publishhed by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/spi/spi.h>
+#include <linux/fb.h>
+#include <linux/lcd.h>
+
+#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)
+
+#define TDO24M_SPI_BUFF_SIZE (4)
+#define MODE_QVGA 0
+#define MODE_VGA 1
+
+struct tdo24m {
+ struct spi_device *spi_dev;
+ struct lcd_device *lcd_dev;
+
+ struct spi_message msg;
+ struct spi_transfer xfer;
+ uint8_t *buf;
+
+ int power;
+ int mode;
+};
+
+/* use bit 30, 31 as the indicator of command parameter number */
+#define CMD0(x) ((0 << 30) | (x))
+#define CMD1(x, x1) ((1 << 30) | ((x) << 9) | 0x100 | (x1))
+#define CMD2(x, x1, x2) ((2 << 30) | ((x) << 18) | 0x20000 |\
+ ((x1) << 9) | 0x100 | (x2))
+#define CMD_NULL (-1)
+
+static uint32_t lcd_panel_reset[] = {
+ CMD0(0x1), /* reset */
+ CMD0(0x0), /* nop */
+ CMD0(0x0), /* nop */
+ CMD0(0x0), /* nop */
+ CMD_NULL,
+};
+
+static uint32_t lcd_panel_on[] = {
+ CMD0(0x29), /* Display ON */
+ CMD2(0xB8, 0xFF, 0xF9), /* Output Control */
+ CMD0(0x11), /* Sleep out */
+ CMD1(0xB0, 0x16), /* Wake */
+ CMD_NULL,
+};
+
+static uint32_t lcd_panel_off[] = {
+ CMD0(0x28), /* Display OFF */
+ CMD2(0xB8, 0x80, 0x02), /* Output Control */
+ CMD0(0x10), /* Sleep in */
+ CMD1(0xB0, 0x00), /* Deep stand by in */
+ CMD_NULL,
+};
+
+static uint32_t lcd_vga_pass_through[] = {
+ CMD1(0xB0, 0x16),
+ CMD1(0xBC, 0x80),
+ CMD1(0xE1, 0x00),
+ CMD1(0x36, 0x50),
+ CMD1(0x3B, 0x00),
+ CMD_NULL,
+};
+
+static uint32_t lcd_qvga_pass_through[] = {
+ CMD1(0xB0, 0x16),
+ CMD1(0xBC, 0x81),
+ CMD1(0xE1, 0x00),
+ CMD1(0x36, 0x50),
+ CMD1(0x3B, 0x22),
+ CMD_NULL,
+};
+
+static uint32_t lcd_vga_transfer[] = {
+ CMD1(0xcf, 0x02), /* Blanking period control (1) */
+ CMD2(0xd0, 0x08, 0x04), /* Blanking period control (2) */
+ CMD1(0xd1, 0x01), /* CKV timing control on/off */
+ CMD2(0xd2, 0x14, 0x00), /* CKV 1,2 timing control */
+ CMD2(0xd3, 0x1a, 0x0f), /* OEV timing control */
+ CMD2(0xd4, 0x1f, 0xaf), /* ASW timing control (1) */
+ CMD1(0xd5, 0x14), /* ASW timing control (2) */
+ CMD0(0x21), /* Invert for normally black display */
+ CMD0(0x29), /* Display on */
+ CMD_NULL,
+};
+
+static uint32_t lcd_qvga_transfer[] = {
+ CMD1(0xd6, 0x02), /* Blanking period control (1) */
+ CMD2(0xd7, 0x08, 0x04), /* Blanking period control (2) */
+ CMD1(0xd8, 0x01), /* CKV timing control on/off */
+ CMD2(0xd9, 0x00, 0x08), /* CKV 1,2 timing control */
+ CMD2(0xde, 0x05, 0x0a), /* OEV timing control */
+ CMD2(0xdf, 0x0a, 0x19), /* ASW timing control (1) */
+ CMD1(0xe0, 0x0a), /* ASW timing control (2) */
+ CMD0(0x21), /* Invert for normally black display */
+ CMD0(0x29), /* Display on */
+ CMD_NULL,
+};
+
+static uint32_t lcd_panel_config[] = {
+ CMD2(0xb8, 0xff, 0xf9), /* Output control */
+ CMD0(0x11), /* sleep out */
+ CMD1(0xba, 0x01), /* Display mode (1) */
+ CMD1(0xbb, 0x00), /* Display mode (2) */
+ CMD1(0x3a, 0x60), /* Display mode 18-bit RGB */
+ CMD1(0xbf, 0x10), /* Drive system change control */
+ CMD1(0xb1, 0x56), /* Booster operation setup */
+ CMD1(0xb2, 0x33), /* Booster mode setup */
+ CMD1(0xb3, 0x11), /* Booster frequency setup */
+ CMD1(0xb4, 0x02), /* Op amp/system clock */
+ CMD1(0xb5, 0x35), /* VCS voltage */
+ CMD1(0xb6, 0x40), /* VCOM voltage */
+ CMD1(0xb7, 0x03), /* External display signal */
+ CMD1(0xbd, 0x00), /* ASW slew rate */
+ CMD1(0xbe, 0x00), /* Dummy data for QuadData operation */
+ CMD1(0xc0, 0x11), /* Sleep out FR count (A) */
+ CMD1(0xc1, 0x11), /* Sleep out FR count (B) */
+ CMD1(0xc2, 0x11), /* Sleep out FR count (C) */
+ CMD2(0xc3, 0x20, 0x40), /* Sleep out FR count (D) */
+ CMD2(0xc4, 0x60, 0xc0), /* Sleep out FR count (E) */
+ CMD2(0xc5, 0x10, 0x20), /* Sleep out FR count (F) */
+ CMD1(0xc6, 0xc0), /* Sleep out FR count (G) */
+ CMD2(0xc7, 0x33, 0x43), /* Gamma 1 fine tuning (1) */
+ CMD1(0xc8, 0x44), /* Gamma 1 fine tuning (2) */
+ CMD1(0xc9, 0x33), /* Gamma 1 inclination adjustment */
+ CMD1(0xca, 0x00), /* Gamma 1 blue offset adjustment */
+ CMD2(0xec, 0x01, 0xf0), /* Horizontal clock cycles */
+ CMD_NULL,
+};
+
+static int tdo24m_writes(struct tdo24m *lcd, uint32_t *array)
+{
+ struct spi_transfer *x = &lcd->xfer;
+ uint32_t data, *p = array;
+ int nparams, err = 0;
+
+ for (; *p != CMD_NULL; p++) {
+
+ nparams = (*p >> 30) & 0x3;
+
+ data = *p << (7 - nparams);
+ switch (nparams) {
+ case 0:
+ lcd->buf[0] = (data >> 8) & 0xff;
+ lcd->buf[1] = data & 0xff;
+ break;
+ case 1:
+ lcd->buf[0] = (data >> 16) & 0xff;
+ lcd->buf[1] = (data >> 8) & 0xff;
+ lcd->buf[2] = data & 0xff;
+ break;
+ case 2:
+ lcd->buf[0] = (data >> 24) & 0xff;
+ lcd->buf[1] = (data >> 16) & 0xff;
+ lcd->buf[2] = (data >> 8) & 0xff;
+ lcd->buf[3] = data & 0xff;
+ break;
+ default:
+ continue;
+ }
+ x->len = nparams + 2;
+ err = spi_sync(lcd->spi_dev, &lcd->msg);
+ if (err)
+ break;
+ }
+
+ return err;
+}
+
+static int tdo24m_adj_mode(struct tdo24m *lcd, int mode)
+{
+ switch (mode) {
+ case MODE_VGA:
+ tdo24m_writes(lcd, lcd_vga_pass_through);
+ tdo24m_writes(lcd, lcd_panel_config);
+ tdo24m_writes(lcd, lcd_vga_transfer);
+ break;
+ case MODE_QVGA:
+ tdo24m_writes(lcd, lcd_qvga_pass_through);
+ tdo24m_writes(lcd, lcd_panel_config);
+ tdo24m_writes(lcd, lcd_qvga_transfer);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ lcd->mode = mode;
+ return 0;
+}
+
+static int tdo24m_power_on(struct tdo24m *lcd)
+{
+ int err;
+
+ err = tdo24m_writes(lcd, lcd_panel_on);
+ if (err)
+ goto out;
+
+ err = tdo24m_writes(lcd, lcd_panel_reset);
+ if (err)
+ goto out;
+
+ err = tdo24m_adj_mode(lcd, lcd->mode);
+out:
+ return err;
+}
+
+static int tdo24m_power_off(struct tdo24m *lcd)
+{
+ return tdo24m_writes(lcd, lcd_panel_off);
+}
+
+static int tdo24m_power(struct tdo24m *lcd, int power)
+{
+ int ret = 0;
+
+ if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
+ ret = tdo24m_power_on(lcd);
+ else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
+ ret = tdo24m_power_off(lcd);
+
+ if (!ret)
+ lcd->power = power;
+
+ return ret;
+}
+
+
+static int tdo24m_set_power(struct lcd_device *ld, int power)
+{
+ struct tdo24m *lcd = lcd_get_data(ld);
+ return tdo24m_power(lcd, power);
+}
+
+static int tdo24m_get_power(struct lcd_device *ld)
+{
+ struct tdo24m *lcd = lcd_get_data(ld);
+ return lcd->power;
+}
+
+static int tdo24m_set_mode(struct lcd_device *ld, struct fb_videomode *m)
+{
+ struct tdo24m *lcd = lcd_get_data(ld);
+ int mode = MODE_QVGA;
+
+ if (m->xres == 640 || m->xres == 480)
+ mode = MODE_VGA;
+
+ if (lcd->mode == mode)
+ return 0;
+
+ return tdo24m_adj_mode(lcd, mode);
+}
+
+static struct lcd_ops tdo24m_ops = {
+ .get_power = tdo24m_get_power,
+ .set_power = tdo24m_set_power,
+ .set_mode = tdo24m_set_mode,
+};
+
+static int __devinit tdo24m_probe(struct spi_device *spi)
+{
+ struct tdo24m *lcd;
+ struct spi_message *m;
+ struct spi_transfer *x;
+ int err;
+
+ spi->bits_per_word = 8;
+ spi->mode = SPI_MODE_3;
+ err = spi_setup(spi);
+ if (err)
+ return err;
+
+ lcd = kzalloc(sizeof(struct tdo24m), GFP_KERNEL);
+ if (!lcd)
+ return -ENOMEM;
+
+ lcd->spi_dev = spi;
+ lcd->power = FB_BLANK_POWERDOWN;
+ lcd->mode = MODE_VGA; /* default to VGA */
+
+ lcd->buf = kmalloc(TDO24M_SPI_BUFF_SIZE, sizeof(GFP_KERNEL));
+ if (lcd->buf == NULL) {
+ kfree(lcd);
+ return -ENOMEM;
+ }
+
+ m = &lcd->msg;
+ x = &lcd->xfer;
+
+ spi_message_init(m);
+
+ x->tx_buf = &lcd->buf[0];
+ spi_message_add_tail(x, m);
+
+ lcd->lcd_dev = lcd_device_register("tdo24m", &spi->dev,
+ lcd, &tdo24m_ops);
+ if (IS_ERR(lcd->lcd_dev)) {
+ err = PTR_ERR(lcd->lcd_dev);
+ goto out_free;
+ }
+
+ dev_set_drvdata(&spi->dev, lcd);
+ err = tdo24m_power(lcd, FB_BLANK_UNBLANK);
+ if (err)
+ goto out_unregister;
+
+ return 0;
+
+out_unregister:
+ lcd_device_unregister(lcd->lcd_dev);
+out_free:
+ kfree(lcd->buf);
+ kfree(lcd);
+ return err;
+}
+
+static int __devexit tdo24m_remove(struct spi_device *spi)
+{
+ struct tdo24m *lcd = dev_get_drvdata(&spi->dev);
+
+ tdo24m_power(lcd, FB_BLANK_POWERDOWN);
+ lcd_device_unregister(lcd->lcd_dev);
+ kfree(lcd->buf);
+ kfree(lcd);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int tdo24m_suspend(struct spi_device *spi, pm_message_t state)
+{
+ struct tdo24m *lcd = dev_get_drvdata(&spi->dev);
+
+ return tdo24m_power(lcd, FB_BLANK_POWERDOWN);
+}
+
+static int tdo24m_resume(struct spi_device *spi)
+{
+ struct tdo24m *lcd = dev_get_drvdata(&spi->dev);
+
+ return tdo24m_power(lcd, FB_BLANK_UNBLANK);
+}
+#else
+#define tdo24m_suspend NULL
+#define tdo24m_resume NULL
+#endif
+
+/* Power down all displays on reboot, poweroff or halt */
+static void tdo24m_shutdown(struct spi_device *spi)
+{
+ struct tdo24m *lcd = dev_get_drvdata(&spi->dev);
+
+ tdo24m_power(lcd, FB_BLANK_POWERDOWN);
+}
+
+static struct spi_driver tdo24m_driver = {
+ .driver = {
+ .name = "tdo24m",
+ .owner = THIS_MODULE,
+ },
+ .probe = tdo24m_probe,
+ .remove = __devexit_p(tdo24m_remove),
+ .shutdown = tdo24m_shutdown,
+ .suspend = tdo24m_suspend,
+ .resume = tdo24m_resume,
+};
+
+static int __init tdo24m_init(void)
+{
+ return spi_register_driver(&tdo24m_driver);
+}
+module_init(tdo24m_init);
+
+static void __exit tdo24m_exit(void)
+{
+ spi_unregister_driver(&tdo24m_driver);
+}
+module_exit(tdo24m_exit);
+
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>");
+MODULE_DESCRIPTION("Driver for Toppoly TDO24M LCD Panel");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 06f87b04f20..2f50a80b413 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -43,22 +43,6 @@ config VGACON_SOFT_SCROLLBACK_SIZE
buffer. Each 64KB will give you approximately 16 80x25
screenfuls of scrollback buffer
-config VIDEO_SELECT
- bool "Video mode selection support"
- depends on X86 && VGA_CONSOLE
- ---help---
- This enables support for text mode selection on kernel startup. If
- you want to take advantage of some high-resolution text mode your
- card's BIOS offers, but the traditional Linux utilities like
- SVGATextMode don't, you can say Y here and set the mode using the
- "vga=" option from your boot loader (lilo or loadlin) or set
- "vga=ask" which brings up a video mode menu on kernel startup. (Try
- "man bootparam" or see the documentation of your boot loader about
- how to pass options to the kernel.)
-
- Read the file <file:Documentation/svga.txt> for more information
- about the Video mode selection support. If unsure, say N.
-
config MDA_CONSOLE
depends on !M68K && !PARISC && ISA
tristate "MDA text console (dual-headed) (EXPERIMENTAL)"
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index c6299e8a041..9cbff84b787 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -2400,11 +2400,15 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
if (!fbcon_is_inactive(vc, info)) {
if (ops->blank_state != blank) {
+ int ret = 1;
+
ops->blank_state = blank;
fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW);
ops->cursor_flash = (!blank);
- if (fb_blank(info, blank))
+ if (info->fbops->fb_blank)
+ ret = info->fbops->fb_blank(blank, info);
+ if (ret)
fbcon_generic_blank(vc, info, blank);
}
diff --git a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h
index a6e38e9ea73..89a346880ec 100644
--- a/drivers/video/console/fbcon.h
+++ b/drivers/video/console/fbcon.h
@@ -110,7 +110,7 @@ static inline int mono_col(const struct fb_info *info)
__u32 max_len;
max_len = max(info->var.green.length, info->var.red.length);
max_len = max(info->var.blue.length, max_len);
- return ~(0xfff << (max_len & 0xff));
+ return (~(0xfff << max_len)) & 0xff;
}
static inline int attr_col_ec(int shift, struct vc_data *vc,
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 98843c2ecf7..0737570030f 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -979,6 +979,7 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
info->flags &= ~FBINFO_MISC_USEREVENT;
event.info = info;
+ event.data = &mode;
fb_notifier_call_chain(evnt, &event);
}
}
diff --git a/drivers/video/metronomefb.c b/drivers/video/metronomefb.c
index cc4c038a1b3..afeed0611e3 100644
--- a/drivers/video/metronomefb.c
+++ b/drivers/video/metronomefb.c
@@ -40,29 +40,63 @@
#include <asm/unaligned.h>
-
-#define DEBUG 1
-#ifdef DEBUG
-#define DPRINTK(f, a...) printk(KERN_DEBUG "%s: " f, __func__ , ## a)
-#else
-#define DPRINTK(f, a...)
-#endif
-
-
/* Display specific information */
#define DPY_W 832
#define DPY_H 622
+static int user_wfm_size;
+
/* frame differs from image. frame includes non-visible pixels */
struct epd_frame {
int fw; /* frame width */
int fh; /* frame height */
+ u16 config[4];
+ int wfm_size;
};
static struct epd_frame epd_frame_table[] = {
{
- .fw = 832,
- .fh = 622
+ .fw = 832,
+ .fh = 622,
+ .config = {
+ 15 /* sdlew */
+ | 2 << 8 /* sdosz */
+ | 0 << 11 /* sdor */
+ | 0 << 12 /* sdces */
+ | 0 << 15, /* sdcer */
+ 42 /* gdspl */
+ | 1 << 8 /* gdr1 */
+ | 1 << 9 /* sdshr */
+ | 0 << 15, /* gdspp */
+ 18 /* gdspw */
+ | 0 << 15, /* dispc */
+ 599 /* vdlc */
+ | 0 << 11 /* dsi */
+ | 0 << 12, /* dsic */
+ },
+ .wfm_size = 47001,
+ },
+ {
+ .fw = 1088,
+ .fh = 791,
+ .config = {
+ 0x0104,
+ 0x031f,
+ 0x0088,
+ 0x02ff,
+ },
+ .wfm_size = 46770,
+ },
+ {
+ .fw = 1200,
+ .fh = 842,
+ .config = {
+ 0x0101,
+ 0x030e,
+ 0x0012,
+ 0x0280,
+ },
+ .wfm_size = 46770,
},
};
@@ -134,9 +168,8 @@ static u16 calc_img_cksum(u16 *start, int length)
}
/* here we decode the incoming waveform file and populate metromem */
-#define EXP_WFORM_SIZE 47001
-static int load_waveform(u8 *mem, size_t size, u8 *metromem, int m, int t,
- u8 *frame_count)
+static int __devinit load_waveform(u8 *mem, size_t size, int m, int t,
+ struct metronomefb_par *par)
{
int tta;
int wmta;
@@ -148,26 +181,31 @@ static int load_waveform(u8 *mem, size_t size, u8 *metromem, int m, int t,
int wfm_idx, owfm_idx;
int mem_idx = 0;
struct waveform_hdr *wfm_hdr;
+ u8 *metromem = par->metromem_wfm;
+ struct device *dev = par->info->dev;
- if (size != EXP_WFORM_SIZE) {
- printk(KERN_ERR "Error: unexpected size %d != %d\n", size,
- EXP_WFORM_SIZE);
+ if (user_wfm_size)
+ epd_frame_table[par->dt].wfm_size = user_wfm_size;
+
+ if (size != epd_frame_table[par->dt].wfm_size) {
+ dev_err(dev, "Error: unexpected size %d != %d\n", size,
+ epd_frame_table[par->dt].wfm_size);
return -EINVAL;
}
wfm_hdr = (struct waveform_hdr *) mem;
if (wfm_hdr->fvsn != 1) {
- printk(KERN_ERR "Error: bad fvsn %x\n", wfm_hdr->fvsn);
+ dev_err(dev, "Error: bad fvsn %x\n", wfm_hdr->fvsn);
return -EINVAL;
}
if (wfm_hdr->luts != 0) {
- printk(KERN_ERR "Error: bad luts %x\n", wfm_hdr->luts);
+ dev_err(dev, "Error: bad luts %x\n", wfm_hdr->luts);
return -EINVAL;
}
cksum = calc_cksum(32, 47, mem);
if (cksum != wfm_hdr->wfm_cs) {
- printk(KERN_ERR "Error: bad cksum %x != %x\n", cksum,
+ dev_err(dev, "Error: bad cksum %x != %x\n", cksum,
wfm_hdr->wfm_cs);
return -EINVAL;
}
@@ -175,7 +213,7 @@ static int load_waveform(u8 *mem, size_t size, u8 *metromem, int m, int t,
wfm_hdr->trc += 1;
for (i = 0; i < 5; i++) {
if (*(wfm_hdr->stuff2a + i) != 0) {
- printk(KERN_ERR "Error: unexpected value in padding\n");
+ dev_err(dev, "Error: unexpected value in padding\n");
return -EINVAL;
}
}
@@ -200,7 +238,7 @@ static int load_waveform(u8 *mem, size_t size, u8 *metromem, int m, int t,
return -EINVAL;
cksum = calc_cksum(sizeof(*wfm_hdr), cksum_idx, mem);
if (cksum != mem[cksum_idx]) {
- printk(KERN_ERR "Error: bad temperature range table cksum"
+ dev_err(dev, "Error: bad temperature range table cksum"
" %x != %x\n", cksum, mem[cksum_idx]);
return -EINVAL;
}
@@ -212,7 +250,7 @@ static int load_waveform(u8 *mem, size_t size, u8 *metromem, int m, int t,
return -EINVAL;
cksum = calc_cksum(cksum_idx - 3, cksum_idx, mem);
if (cksum != mem[cksum_idx]) {
- printk(KERN_ERR "Error: bad mode table address cksum"
+ dev_err(dev, "Error: bad mode table address cksum"
" %x != %x\n", cksum, mem[cksum_idx]);
return -EINVAL;
}
@@ -224,7 +262,7 @@ static int load_waveform(u8 *mem, size_t size, u8 *metromem, int m, int t,
return -EINVAL;
cksum = calc_cksum(cksum_idx - 3, cksum_idx, mem);
if (cksum != mem[cksum_idx]) {
- printk(KERN_ERR "Error: bad temperature table address cksum"
+ dev_err(dev, "Error: bad temperature table address cksum"
" %x != %x\n", cksum, mem[cksum_idx]);
return -EINVAL;
}
@@ -259,11 +297,11 @@ static int load_waveform(u8 *mem, size_t size, u8 *metromem, int m, int t,
return -EINVAL;
cksum = calc_cksum(owfm_idx, cksum_idx, mem);
if (cksum != mem[cksum_idx]) {
- printk(KERN_ERR "Error: bad waveform data cksum"
+ dev_err(dev, "Error: bad waveform data cksum"
" %x != %x\n", cksum, mem[cksum_idx]);
return -EINVAL;
}
- *frame_count = (mem_idx/64);
+ par->frame_count = (mem_idx/64);
return 0;
}
@@ -274,15 +312,12 @@ static int metronome_display_cmd(struct metronomefb_par *par)
u16 cs;
u16 opcode;
static u8 borderval;
- u8 *ptr;
/* setup display command
we can't immediately set the opcode since the controller
will try parse the command before we've set it all up
so we just set cs here and set the opcode at the end */
- ptr = par->metromem;
-
if (par->metromem_cmd->opcode == 0xCC40)
opcode = cs = 0xCC41;
else
@@ -335,44 +370,17 @@ static int __devinit metronome_powerup_cmd(struct metronomefb_par *par)
static int __devinit metronome_config_cmd(struct metronomefb_par *par)
{
- int i;
- u16 cs;
-
/* setup config command
we can't immediately set the opcode since the controller
- will try parse the command before we've set it all up
- so we just set cs here and set the opcode at the end */
-
- cs = 0xCC10;
-
- /* set the 12 args ( 8 bytes ) for config. see spec for meanings */
- i = 0;
- par->metromem_cmd->args[i] = 15 /* sdlew */
- | 2 << 8 /* sdosz */
- | 0 << 11 /* sdor */
- | 0 << 12 /* sdces */
- | 0 << 15; /* sdcer */
- cs += par->metromem_cmd->args[i++];
-
- par->metromem_cmd->args[i] = 42 /* gdspl */
- | 1 << 8 /* gdr1 */
- | 1 << 9 /* sdshr */
- | 0 << 15; /* gdspp */
- cs += par->metromem_cmd->args[i++];
-
- par->metromem_cmd->args[i] = 18 /* gdspw */
- | 0 << 15; /* dispc */
- cs += par->metromem_cmd->args[i++];
-
- par->metromem_cmd->args[i] = 599 /* vdlc */
- | 0 << 11 /* dsi */
- | 0 << 12; /* dsic */
- cs += par->metromem_cmd->args[i++];
+ will try parse the command before we've set it all up */
+ memcpy(par->metromem_cmd->args, epd_frame_table[par->dt].config,
+ sizeof(epd_frame_table[par->dt].config));
/* the rest are 0 */
- memset((u8 *) (par->metromem_cmd->args + i), 0, (32-i)*2);
+ memset((u8 *) (par->metromem_cmd->args + 4), 0, (32-4)*2);
- par->metromem_cmd->csum = cs;
+ par->metromem_cmd->csum = 0xCC10;
+ par->metromem_cmd->csum += calc_img_cksum(par->metromem_cmd->args, 4);
par->metromem_cmd->opcode = 0xCC10; /* config cmd */
return par->board->met_wait_event(par);
@@ -408,12 +416,9 @@ static int __devinit metronome_init_regs(struct metronomefb_par *par)
{
int res;
- par->board->init_gpio_regs(par);
-
- par->board->init_lcdc_regs(par);
-
- /* now that lcd is setup, setup dma descriptor */
- par->board->post_dma_setup(par);
+ res = par->board->setup_io(par);
+ if (res)
+ return res;
res = metronome_powerup_cmd(par);
if (res)
@@ -430,16 +435,16 @@ static int __devinit metronome_init_regs(struct metronomefb_par *par)
static void metronomefb_dpy_update(struct metronomefb_par *par)
{
+ int fbsize;
u16 cksum;
unsigned char *buf = (unsigned char __force *)par->info->screen_base;
+ fbsize = par->info->fix.smem_len;
/* copy from vm to metromem */
- memcpy(par->metromem_img, buf, DPY_W*DPY_H);
+ memcpy(par->metromem_img, buf, fbsize);
- cksum = calc_img_cksum((u16 *) par->metromem_img,
- (epd_frame_table[0].fw * DPY_H)/2);
- *((u16 *)(par->metromem_img) +
- (epd_frame_table[0].fw * DPY_H)/2) = cksum;
+ cksum = calc_img_cksum((u16 *) par->metromem_img, fbsize/2);
+ *((u16 *)(par->metromem_img) + fbsize/2) = cksum;
metronome_display_cmd(par);
}
@@ -574,8 +579,10 @@ static int __devinit metronomefb_probe(struct platform_device *dev)
unsigned char *videomemory;
struct metronomefb_par *par;
const struct firmware *fw_entry;
- int cmd_size, wfm_size, img_size, padding_size, totalsize;
int i;
+ int panel_type;
+ int fw, fh;
+ int epd_dt_index;
/* pick up board specific routines */
board = dev->dev.platform_data;
@@ -586,96 +593,108 @@ static int __devinit metronomefb_probe(struct platform_device *dev)
if (!try_module_get(board->owner))
return -ENODEV;
+ info = framebuffer_alloc(sizeof(struct metronomefb_par), &dev->dev);
+ if (!info)
+ goto err;
+
/* we have two blocks of memory.
info->screen_base which is vm, and is the fb used by apps.
par->metromem which is physically contiguous memory and
contains the display controller commands, waveform,
processed image data and padding. this is the data pulled
- by the device's LCD controller and pushed to Metronome */
+ by the device's LCD controller and pushed to Metronome.
+ the metromem memory is allocated by the board driver and
+ is provided to us */
+
+ panel_type = board->get_panel_type();
+ switch (panel_type) {
+ case 6:
+ epd_dt_index = 0;
+ break;
+ case 8:
+ epd_dt_index = 1;
+ break;
+ case 97:
+ epd_dt_index = 2;
+ break;
+ default:
+ dev_err(&dev->dev, "Unexpected panel type. Defaulting to 6\n");
+ epd_dt_index = 0;
+ break;
+ }
+
+ fw = epd_frame_table[epd_dt_index].fw;
+ fh = epd_frame_table[epd_dt_index].fh;
- videomemorysize = (DPY_W*DPY_H);
+ /* we need to add a spare page because our csum caching scheme walks
+ * to the end of the page */
+ videomemorysize = PAGE_SIZE + (fw * fh);
videomemory = vmalloc(videomemorysize);
if (!videomemory)
- return -ENOMEM;
+ goto err_fb_rel;
memset(videomemory, 0, videomemorysize);
- info = framebuffer_alloc(sizeof(struct metronomefb_par), &dev->dev);
- if (!info)
- goto err_vfree;
-
info->screen_base = (char __force __iomem *)videomemory;
info->fbops = &metronomefb_ops;
+ metronomefb_fix.line_length = fw;
+ metronomefb_var.xres = fw;
+ metronomefb_var.yres = fh;
+ metronomefb_var.xres_virtual = fw;
+ metronomefb_var.yres_virtual = fh;
info->var = metronomefb_var;
info->fix = metronomefb_fix;
info->fix.smem_len = videomemorysize;
par = info->par;
par->info = info;
par->board = board;
+ par->dt = epd_dt_index;
init_waitqueue_head(&par->waitq);
/* this table caches per page csum values. */
par->csum_table = vmalloc(videomemorysize/PAGE_SIZE);
if (!par->csum_table)
+ goto err_vfree;
+
+ /* the physical framebuffer that we use is setup by
+ * the platform device driver. It will provide us
+ * with cmd, wfm and image memory in a contiguous area. */
+ retval = board->setup_fb(par);
+ if (retval) {
+ dev_err(&dev->dev, "Failed to setup fb\n");
goto err_csum_table;
+ }
- /* the metromem buffer is divided as follows:
- command | CRC | padding
- 16kb waveform data | CRC | padding
- image data | CRC
- and an extra 256 bytes for dma descriptors
- eg: IW=832 IH=622 WS=128
- */
-
- cmd_size = 1 * epd_frame_table[0].fw;
- wfm_size = ((16*1024 + 2 + epd_frame_table[0].fw - 1)
- / epd_frame_table[0].fw) * epd_frame_table[0].fw;
- img_size = epd_frame_table[0].fh * epd_frame_table[0].fw;
- padding_size = 4 * epd_frame_table[0].fw;
- totalsize = cmd_size + wfm_size + img_size + padding_size;
- par->metromemsize = PAGE_ALIGN(totalsize + 256);
- DPRINTK("desired memory size = %d\n", par->metromemsize);
- dev->dev.coherent_dma_mask = 0xffffffffull;
- par->metromem = dma_alloc_writecombine(&dev->dev, par->metromemsize,
- &par->metromem_dma, GFP_KERNEL);
- if (!par->metromem) {
- printk(KERN_ERR
- "metronomefb: unable to allocate dma buffer\n");
- goto err_vfree;
+ /* after this point we should have a framebuffer */
+ if ((!par->metromem_wfm) || (!par->metromem_img) ||
+ (!par->metromem_dma)) {
+ dev_err(&dev->dev, "fb access failure\n");
+ retval = -EINVAL;
+ goto err_csum_table;
}
info->fix.smem_start = par->metromem_dma;
- par->metromem_cmd = (struct metromem_cmd *) par->metromem;
- par->metromem_wfm = par->metromem + cmd_size;
- par->metromem_img = par->metromem + cmd_size + wfm_size;
- par->metromem_img_csum = (u16 *) (par->metromem_img +
- (epd_frame_table[0].fw * DPY_H));
- DPRINTK("img offset=0x%x\n", cmd_size + wfm_size);
- par->metromem_desc = (struct metromem_desc *) (par->metromem + cmd_size
- + wfm_size + img_size + padding_size);
- par->metromem_desc_dma = par->metromem_dma + cmd_size + wfm_size
- + img_size + padding_size;
/* load the waveform in. assume mode 3, temp 31 for now
a) request the waveform file from userspace
b) process waveform and decode into metromem */
retval = request_firmware(&fw_entry, "metronome.wbf", &dev->dev);
if (retval < 0) {
- printk(KERN_ERR "metronomefb: couldn't get waveform\n");
- goto err_dma_free;
+ dev_err(&dev->dev, "Failed to get waveform\n");
+ goto err_csum_table;
}
- retval = load_waveform((u8 *) fw_entry->data, fw_entry->size,
- par->metromem_wfm, 3, 31, &par->frame_count);
+ retval = load_waveform((u8 *) fw_entry->data, fw_entry->size, 3, 31,
+ par);
release_firmware(fw_entry);
if (retval < 0) {
- printk(KERN_ERR "metronomefb: couldn't process waveform\n");
- goto err_dma_free;
+ dev_err(&dev->dev, "Failed processing waveform\n");
+ goto err_csum_table;
}
if (board->setup_irq(info))
- goto err_dma_free;
+ goto err_csum_table;
retval = metronome_init_regs(par);
if (retval < 0)
@@ -688,8 +707,8 @@ static int __devinit metronomefb_probe(struct platform_device *dev)
retval = fb_alloc_cmap(&info->cmap, 8, 0);
if (retval < 0) {
- printk(KERN_ERR "Failed to allocate colormap\n");
- goto err_fb_rel;
+ dev_err(&dev->dev, "Failed to allocate colormap\n");
+ goto err_free_irq;
}
/* set cmap */
@@ -704,7 +723,7 @@ static int __devinit metronomefb_probe(struct platform_device *dev)
platform_set_drvdata(dev, info);
- printk(KERN_INFO
+ dev_dbg(&dev->dev,
"fb%d: Metronome frame buffer device, using %dK of video"
" memory\n", info->node, videomemorysize >> 10);
@@ -712,17 +731,15 @@ static int __devinit metronomefb_probe(struct platform_device *dev)
err_cmap:
fb_dealloc_cmap(&info->cmap);
-err_fb_rel:
- framebuffer_release(info);
err_free_irq:
- board->free_irq(info);
-err_dma_free:
- dma_free_writecombine(&dev->dev, par->metromemsize, par->metromem,
- par->metromem_dma);
+ board->cleanup(par);
err_csum_table:
vfree(par->csum_table);
err_vfree:
vfree(videomemory);
+err_fb_rel:
+ framebuffer_release(info);
+err:
module_put(board->owner);
return retval;
}
@@ -733,15 +750,15 @@ static int __devexit metronomefb_remove(struct platform_device *dev)
if (info) {
struct metronomefb_par *par = info->par;
+
+ unregister_framebuffer(info);
fb_deferred_io_cleanup(info);
- dma_free_writecombine(&dev->dev, par->metromemsize,
- par->metromem, par->metromem_dma);
fb_dealloc_cmap(&info->cmap);
+ par->board->cleanup(par);
vfree(par->csum_table);
- unregister_framebuffer(info);
vfree((void __force *)info->screen_base);
- par->board->free_irq(info);
module_put(par->board->owner);
+ dev_dbg(&dev->dev, "calling release\n");
framebuffer_release(info);
}
return 0;
@@ -766,6 +783,9 @@ static void __exit metronomefb_exit(void)
platform_driver_unregister(&metronomefb_driver);
}
+module_param(user_wfm_size, uint, 0);
+MODULE_PARM_DESC(user_wfm_size, "Set custom waveform size");
+
module_init(metronomefb_init);
module_exit(metronomefb_exit);
diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c
index 47ed39b52f9..a463b3dd837 100644
--- a/drivers/video/xen-fbfront.c
+++ b/drivers/video/xen-fbfront.c
@@ -680,11 +680,11 @@ static struct xenbus_driver xenfb = {
static int __init xenfb_init(void)
{
- if (!is_running_on_xen())
+ if (!xen_domain())
return -ENODEV;
/* Nothing to do if running in dom0. */
- if (is_initial_xendomain())
+ if (xen_initial_domain())
return -ENODEV;
return xenbus_register_frontend(&xenfb);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-28 12:32:20 +0000