diff options
Diffstat (limited to 'drivers/video/backlight')
| -rw-r--r-- | drivers/video/backlight/Kconfig | 23 | ||||
| -rw-r--r-- | drivers/video/backlight/Makefile | 2 | ||||
| -rw-r--r-- | drivers/video/backlight/backlight.c | 2 | ||||
| -rw-r--r-- | drivers/video/backlight/corgi_bl.c | 22 | ||||
| -rw-r--r-- | drivers/video/backlight/cr_bllcd.c | 35 | ||||
| -rw-r--r-- | drivers/video/backlight/lcd.c | 2 | ||||
| -rw-r--r-- | drivers/video/backlight/ltv350qv.c | 330 | ||||
| -rw-r--r-- | drivers/video/backlight/ltv350qv.h | 95 |
8 files changed, 477 insertions, 34 deletions
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 2580f5fa2486..9609a6c676be 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -24,6 +24,18 @@ 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_LTV350QV + tristate "Samsung LTV350QV LCD Panel" + depends on LCD_CLASS_DEVICE && SPI_MASTER + default n + help + If you have a Samsung LTV350QV LCD panel, say y to include a + power control driver for it. The panel starts up in power + off state, so you need this driver in order to see any + output. + + The LTV350QV panel is present on all ATSTK1000 boards. + # # Backlight # @@ -39,12 +51,13 @@ config BACKLIGHT_CLASS_DEVICE select the proper drivers which depend on this option. config BACKLIGHT_CORGI - tristate "Sharp Corgi Backlight Driver (SL Series)" - depends on BACKLIGHT_CLASS_DEVICE && PXA_SHARPSL - default y + tristate "Generic (aka Sharp Corgi) Backlight Driver" + depends on BACKLIGHT_CLASS_DEVICE + default n help - If you have a Sharp Zaurus SL-C7xx, SL-Cxx00 or SL-6000x say y to enable the - backlight driver. + Say y to enable the generic platform backlight driver previously + known as the Corgi backlight driver. If you have a Sharp Zaurus + SL-C7xx, SL-Cxx00 or SL-6000x say y. Most users can say n. config BACKLIGHT_LOCOMO tristate "Sharp LOCOMO LCD/Backlight Driver" diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index c6e2266f63e2..965a78b18118 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -1,6 +1,8 @@ # Backlight & LCD drivers obj-$(CONFIG_LCD_CLASS_DEVICE) += lcd.o +obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o + obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o obj-$(CONFIG_BACKLIGHT_CORGI) += corgi_bl.o obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index b26de8cf3112..4840fe217e4d 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -164,7 +164,7 @@ static ssize_t backlight_show_actual_brightness(struct device *dev, return rc; } -struct class *backlight_class; +static struct class *backlight_class; static void bl_device_release(struct device *dev) { diff --git a/drivers/video/backlight/corgi_bl.c b/drivers/video/backlight/corgi_bl.c index ce00e18a4e5d..4d4d037e3ec9 100644 --- a/drivers/video/backlight/corgi_bl.c +++ b/drivers/video/backlight/corgi_bl.c @@ -18,13 +18,11 @@ #include <linux/mutex.h> #include <linux/fb.h> #include <linux/backlight.h> -#include <asm/arch/sharpsl.h> -#include <asm/hardware/sharpsl_pm.h> static int corgibl_intensity; static struct backlight_properties corgibl_data; static struct backlight_device *corgi_backlight_device; -static struct corgibl_machinfo *bl_machinfo; +static struct generic_bl_info *bl_machinfo; static unsigned long corgibl_flags; #define CORGIBL_SUSPENDED 0x01 @@ -32,7 +30,6 @@ static unsigned long corgibl_flags; static int corgibl_send_intensity(struct backlight_device *bd) { - void (*corgi_kick_batt)(void); int intensity = bd->props.brightness; if (bd->props.power != FB_BLANK_UNBLANK) @@ -48,11 +45,8 @@ static int corgibl_send_intensity(struct backlight_device *bd) corgibl_intensity = intensity; - corgi_kick_batt = symbol_get(sharpsl_battery_kick); - if (corgi_kick_batt) { - corgi_kick_batt(); - symbol_put(sharpsl_battery_kick); - } + if (bl_machinfo->kick_battery) + bl_machinfo->kick_battery(); return 0; } @@ -107,13 +101,17 @@ static struct backlight_ops corgibl_ops = { static int corgibl_probe(struct platform_device *pdev) { - struct corgibl_machinfo *machinfo = pdev->dev.platform_data; + struct generic_bl_info *machinfo = pdev->dev.platform_data; + const char *name = "generic-bl"; bl_machinfo = machinfo; if (!machinfo->limit_mask) machinfo->limit_mask = -1; - corgi_backlight_device = backlight_device_register ("corgi-bl", + if (machinfo->name) + name = machinfo->name; + + corgi_backlight_device = backlight_device_register (name, &pdev->dev, NULL, &corgibl_ops); if (IS_ERR (corgi_backlight_device)) return PTR_ERR (corgi_backlight_device); @@ -149,7 +147,7 @@ static struct platform_driver corgibl_driver = { .suspend = corgibl_suspend, .resume = corgibl_resume, .driver = { - .name = "corgi-bl", + .name = "generic-bl", }, }; diff --git a/drivers/video/backlight/cr_bllcd.c b/drivers/video/backlight/cr_bllcd.c index b7904da51b23..92e201e81fbd 100644 --- a/drivers/video/backlight/cr_bllcd.c +++ b/drivers/video/backlight/cr_bllcd.c @@ -171,13 +171,11 @@ static struct lcd_ops cr_lcd_ops = { static int cr_backlight_probe(struct platform_device *pdev) { + struct backlight_device *bdp; + struct lcd_device *ldp; struct cr_panel *crp; u8 dev_en; - crp = kzalloc(sizeof(*crp), GFP_KERNEL); - if (crp == NULL) - return -ENOMEM; - lpc_dev = pci_get_device(PCI_VENDOR_ID_INTEL, CRVML_DEVICE_LPC, NULL); if (!lpc_dev) { @@ -193,27 +191,34 @@ static int cr_backlight_probe(struct platform_device *pdev) return -ENODEV; } - crp->cr_backlight_device = backlight_device_register("cr-backlight", - &pdev->dev, NULL, - &cr_backlight_ops); - if (IS_ERR(crp->cr_backlight_device)) { + bdp = backlight_device_register("cr-backlight", + &pdev->dev, NULL, &cr_backlight_ops); + if (IS_ERR(bdp)) { pci_dev_put(lpc_dev); - return PTR_ERR(crp->cr_backlight_device); + return PTR_ERR(bdp); } - crp->cr_lcd_device = lcd_device_register("cr-lcd", - &pdev->dev, NULL, - &cr_lcd_ops); - - if (IS_ERR(crp->cr_lcd_device)) { + ldp = lcd_device_register("cr-lcd", &pdev->dev, NULL, &cr_lcd_ops); + if (IS_ERR(ldp)) { + backlight_device_unregister(bdp); pci_dev_put(lpc_dev); - return PTR_ERR(crp->cr_backlight_device); + return PTR_ERR(bdp); } pci_read_config_dword(lpc_dev, CRVML_REG_GPIOBAR, &gpio_bar); gpio_bar &= ~0x3F; + crp = kzalloc(sizeof(*crp), GFP_KERNEL); + if (!crp) { + lcd_device_unregister(ldp); + backlight_device_unregister(bdp); + pci_dev_put(lpc_dev); + return -ENOMEM; + } + + crp->cr_backlight_device = bdp; + crp->cr_lcd_device = ldp; crp->cr_backlight_device->props.power = FB_BLANK_UNBLANK; crp->cr_backlight_device->props.brightness = 0; crp->cr_backlight_device->props.max_brightness = 0; diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 6f652c65fae1..299fd318dd45 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -149,7 +149,7 @@ static ssize_t lcd_show_max_contrast(struct device *dev, return sprintf(buf, "%d\n", ld->props.max_contrast); } -struct class *lcd_class; +static struct class *lcd_class; static void lcd_device_release(struct device *dev) { diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c new file mode 100644 index 000000000000..2eb206bf73e6 --- /dev/null +++ b/drivers/video/backlight/ltv350qv.c @@ -0,0 +1,330 @@ +/* + * Power control for Samsung LTV350QV Quarter VGA LCD Panel + * + * Copyright (C) 2006, 2007 Atmel Corporation + * + * 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/delay.h> +#include <linux/err.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/lcd.h> +#include <linux/module.h> +#include <linux/spi/spi.h> + +#include "ltv350qv.h" + +#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) + +struct ltv350qv { + struct spi_device *spi; + u8 *buffer; + int power; + struct lcd_device *ld; +}; + +/* + * The power-on and power-off sequences are taken from the + * LTV350QV-F04 data sheet from Samsung. The register definitions are + * taken from the S6F2002 command list also from Samsung. Both + * documents are distributed with the AVR32 Linux BSP CD from Atmel. + * + * There's still some voodoo going on here, but it's a lot better than + * in the first incarnation of the driver where all we had was the raw + * numbers from the initialization sequence. + */ +static int ltv350qv_write_reg(struct ltv350qv *lcd, u8 reg, u16 val) +{ + struct spi_message msg; + struct spi_transfer index_xfer = { + .len = 3, + .cs_change = 1, + }; + struct spi_transfer value_xfer = { + .len = 3, + }; + + spi_message_init(&msg); + + /* register index */ + lcd->buffer[0] = LTV_OPC_INDEX; + lcd->buffer[1] = 0x00; + lcd->buffer[2] = reg & 0x7f; + index_xfer.tx_buf = lcd->buffer; + spi_message_add_tail(&index_xfer, &msg); + + /* register value */ + lcd->buffer[4] = LTV_OPC_DATA; + lcd->buffer[5] = val >> 8; + lcd->buffer[6] = val; + value_xfer.tx_buf = lcd->buffer + 4; + spi_message_add_tail(&value_xfer, &msg); + + return spi_sync(lcd->spi, &msg); +} + +/* The comments are taken straight from the data sheet */ +static int ltv350qv_power_on(struct ltv350qv *lcd) +{ + int ret; + + /* Power On Reset Display off State */ + if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, 0x0000)) + goto err; + msleep(15); + + /* Power Setting Function 1 */ + if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE)) + goto err; + if (ltv350qv_write_reg(lcd, LTV_PWRCTL2, LTV_VCOML_ENABLE)) + goto err_power1; + + /* Power Setting Function 2 */ + if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, + LTV_VCOM_DISABLE | LTV_DRIVE_CURRENT(5) + | LTV_SUPPLY_CURRENT(5))) + goto err_power2; + + msleep(55); + + /* Instruction Setting */ + ret = ltv350qv_write_reg(lcd, LTV_IFCTL, + LTV_NMD | LTV_REV | LTV_NL(0x1d)); + ret |= ltv350qv_write_reg(lcd, LTV_DATACTL, + LTV_DS_SAME | LTV_CHS_480 + | LTV_DF_RGB | LTV_RGB_BGR); + ret |= ltv350qv_write_reg(lcd, LTV_ENTRY_MODE, + LTV_VSPL_ACTIVE_LOW + | LTV_HSPL_ACTIVE_LOW + | LTV_DPL_SAMPLE_RISING + | LTV_EPL_ACTIVE_LOW + | LTV_SS_RIGHT_TO_LEFT); + ret |= ltv350qv_write_reg(lcd, LTV_GATECTL1, LTV_CLW(3)); + ret |= ltv350qv_write_reg(lcd, LTV_GATECTL2, + LTV_NW_INV_1LINE | LTV_FWI(3)); + ret |= ltv350qv_write_reg(lcd, LTV_VBP, 0x000a); + ret |= ltv350qv_write_reg(lcd, LTV_HBP, 0x0021); + ret |= ltv350qv_write_reg(lcd, LTV_SOTCTL, LTV_SDT(3) | LTV_EQ(0)); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(0), 0x0103); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(1), 0x0301); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(2), 0x1f0f); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(3), 0x1f0f); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(4), 0x0707); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(5), 0x0307); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(6), 0x0707); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(7), 0x0000); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(8), 0x0004); + ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(9), 0x0000); + if (ret) + goto err_settings; + + /* Wait more than 2 frames */ + msleep(20); + + /* Display On Sequence */ + ret = ltv350qv_write_reg(lcd, LTV_PWRCTL1, + LTV_VCOM_DISABLE | LTV_VCOMOUT_ENABLE + | LTV_POWER_ON | LTV_DRIVE_CURRENT(5) + | LTV_SUPPLY_CURRENT(5)); + ret |= ltv350qv_write_reg(lcd, LTV_GATECTL2, + LTV_NW_INV_1LINE | LTV_DSC | LTV_FWI(3)); + if (ret) + goto err_disp_on; + + /* Display should now be ON. Phew. */ + return 0; + +err_disp_on: + /* + * Try to recover. Error handling probably isn't very useful + * at this point, just make a best effort to switch the panel + * off. + */ + ltv350qv_write_reg(lcd, LTV_PWRCTL1, + LTV_VCOM_DISABLE | LTV_DRIVE_CURRENT(5) + | LTV_SUPPLY_CURRENT(5)); + ltv350qv_write_reg(lcd, LTV_GATECTL2, + LTV_NW_INV_1LINE | LTV_FWI(3)); +err_settings: +err_power2: +err_power1: + ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000); + msleep(1); +err: + ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE); + return -EIO; +} + +static int ltv350qv_power_off(struct ltv350qv *lcd) +{ + int ret; + + /* Display Off Sequence */ + ret = ltv350qv_write_reg(lcd, LTV_PWRCTL1, + LTV_VCOM_DISABLE + | LTV_DRIVE_CURRENT(5) + | LTV_SUPPLY_CURRENT(5)); + ret |= ltv350qv_write_reg(lcd, LTV_GATECTL2, + LTV_NW_INV_1LINE | LTV_FWI(3)); + + /* Power down setting 1 */ + ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000); + + /* Wait at least 1 ms */ + msleep(1); + + /* Power down setting 2 */ + ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE); + + /* + * No point in trying to recover here. If we can't switch the + * panel off, what are we supposed to do other than inform the + * user about the failure? + */ + if (ret) + return -EIO; + + /* Display power should now be OFF */ + return 0; +} + +static int ltv350qv_power(struct ltv350qv *lcd, int power) +{ + int ret = 0; + + if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power)) + ret = ltv350qv_power_on(lcd); + else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power)) + ret = ltv350qv_power_off(lcd); + + if (!ret) + lcd->power = power; + + return ret; +} + +static int ltv350qv_set_power(struct lcd_device *ld, int power) +{ + struct ltv350qv *lcd = lcd_get_data(ld); + + return ltv350qv_power(lcd, power); +} + +static int ltv350qv_get_power(struct lcd_device *ld) +{ + struct ltv350qv *lcd = lcd_get_data(ld); + + return lcd->power; +} + +static struct lcd_ops ltv_ops = { + .get_power = ltv350qv_get_power, + .set_power = ltv350qv_set_power, +}; + +static int __devinit ltv350qv_probe(struct spi_device *spi) +{ + struct ltv350qv *lcd; + struct lcd_device *ld; + int ret; + + lcd = kzalloc(sizeof(struct ltv350qv), GFP_KERNEL); + if (!lcd) + return -ENOMEM; + + lcd->spi = spi; + lcd->power = FB_BLANK_POWERDOWN; + lcd->buffer = kzalloc(8, GFP_KERNEL); + + ld = lcd_device_register("ltv350qv", &spi->dev, lcd, <v_ops); + if (IS_ERR(ld)) { + ret = PTR_ERR(ld); + goto out_free_lcd; + } + lcd->ld = ld; + + ret = ltv350qv_power(lcd, FB_BLANK_UNBLANK); + if (ret) + goto out_unregister; + + dev_set_drvdata(&spi->dev, lcd); + + return 0; + +out_unregister: + lcd_device_unregister(ld); +out_free_lcd: + kfree(lcd); + return ret; +} + +static int __devexit ltv350qv_remove(struct spi_device *spi) +{ + struct ltv350qv *lcd = dev_get_drvdata(&spi->dev); + + ltv350qv_power(lcd, FB_BLANK_POWERDOWN); + lcd_device_unregister(lcd->ld); + kfree(lcd); + + return 0; +} + +#ifdef CONFIG_PM +static int ltv350qv_suspend(struct spi_device *spi, pm_message_t state) +{ + struct ltv350qv *lcd = dev_get_drvdata(&spi->dev); + + return ltv350qv_power(lcd, FB_BLANK_POWERDOWN); +} + +static int ltv350qv_resume(struct spi_device *spi) +{ + struct ltv350qv *lcd = dev_get_drvdata(&spi->dev); + + return ltv350qv_power(lcd, FB_BLANK_UNBLANK); +} +#else +#define ltv350qv_suspend NULL +#define ltv350qv_resume NULL +#endif + +/* Power down all displays on reboot, poweroff or halt */ +static void ltv350qv_shutdown(struct spi_device *spi) +{ + struct ltv350qv *lcd = dev_get_drvdata(&spi->dev); + + ltv350qv_power(lcd, FB_BLANK_POWERDOWN); +} + +static struct spi_driver ltv350qv_driver = { + .driver = { + .name = "ltv350qv", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, + + .probe = ltv350qv_probe, + .remove = __devexit_p(ltv350qv_remove), + .shutdown = ltv350qv_shutdown, + .suspend = ltv350qv_suspend, + .resume = ltv350qv_resume, +}; + +static int __init ltv350qv_init(void) +{ + return spi_register_driver(<v350qv_driver); +} + +static void __exit ltv350qv_exit(void) +{ + spi_unregister_driver(<v350qv_driver); +} +module_init(ltv350qv_init); +module_exit(ltv350qv_exit); + +MODULE_AUTHOR("Haavard Skinnemoen <hskinnemoen@atmel.com>"); +MODULE_DESCRIPTION("Samsung LTV350QV LCD Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/video/backlight/ltv350qv.h b/drivers/video/backlight/ltv350qv.h new file mode 100644 index 000000000000..189112e3fc7a --- /dev/null +++ b/drivers/video/backlight/ltv350qv.h @@ -0,0 +1,95 @@ +/* + * Register definitions for Samsung LTV350QV Quarter VGA LCD Panel + * + * Copyright (C) 2006, 2007 Atmel Corporation + * + * 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. + */ +#ifndef __LTV350QV_H +#define __LTV350QV_H + +#define LTV_OPC_INDEX 0x74 +#define LTV_OPC_DATA 0x76 + +#define LTV_ID 0x00 /* ID Read */ +#define LTV_IFCTL 0x01 /* Display Interface Control */ +#define LTV_DATACTL 0x02 /* Display Data Control */ +#define LTV_ENTRY_MODE 0x03 /* Entry Mode */ +#define LTV_GATECTL1 0x04 /* Gate Control 1 */ +#define LTV_GATECTL2 0x05 /* Gate Control 2 */ +#define LTV_VBP 0x06 /* Vertical Back Porch */ +#define LTV_HBP 0x07 /* Horizontal Back Porch */ +#define LTV_SOTCTL 0x08 /* Source Output Timing Control */ +#define LTV_PWRCTL1 0x09 /* Power Control 1 */ +#define LTV_PWRCTL2 0x0a /* Power Control 2 */ +#define LTV_GAMMA(x) (0x10 + (x)) /* Gamma control */ + +/* Bit definitions for LTV_IFCTL */ +#define LTV_IM (1 << 15) +#define LTV_NMD (1 << 14) +#define LTV_SSMD (1 << 13) +#define LTV_REV (1 << 7) +#define LTV_NL(x) (((x) & 0x001f) << 0) + +/* Bit definitions for LTV_DATACTL */ +#define LTV_DS_SAME (0 << 12) +#define LTV_DS_D_TO_S (1 << 12) +#define LTV_DS_S_TO_D (2 << 12) +#define LTV_CHS_384 (0 << 9) +#define LTV_CHS_480 (1 << 9) +#define LTV_CHS_492 (2 << 9) +#define LTV_DF_RGB (0 << 6) +#define LTV_DF_RGBX (1 << 6) +#define LTV_DF_XRGB (2 << 6) +#define LTV_RGB_RGB (0 << 2) +#define LTV_RGB_BGR (1 << 2) +#define LTV_RGB_GRB (2 << 2) +#define LTV_RGB_RBG (3 << 2) + +/* Bit definitions for LTV_ENTRY_MODE */ +#define LTV_VSPL_ACTIVE_LOW (0 << 15) +#define LTV_VSPL_ACTIVE_HIGH (1 << 15) +#define LTV_HSPL_ACTIVE_LOW (0 << 14) +#define LTV_HSPL_ACTIVE_HIGH (1 << 14) +#define LTV_DPL_SAMPLE_RISING (0 << 13) +#define LTV_DPL_SAMPLE_FALLING (1 << 13) +#define LTV_EPL_ACTIVE_LOW (0 << 12) +#define LTV_EPL_ACTIVE_HIGH (1 << 12) +#define LTV_SS_LEFT_TO_RIGHT (0 << 8) +#define LTV_SS_RIGHT_TO_LEFT (1 << 8) +#define LTV_STB (1 << 1) + +/* Bit definitions for LTV_GATECTL1 */ +#define LTV_CLW(x) (((x) & 0x0007) << 12) +#define LTV_GAON (1 << 5) +#define LTV_SDR (1 << 3) + +/* Bit definitions for LTV_GATECTL2 */ +#define LTV_NW_INV_FRAME (0 << 14) +#define LTV_NW_INV_1LINE (1 << 14) +#define LTV_NW_INV_2LINE (2 << 14) +#define LTV_DSC (1 << 12) +#define LTV_GIF (1 << 8) +#define LTV_FHN (1 << 7) +#define LTV_FTI(x) (((x) & 0x0003) << 4) +#define LTV_FWI(x) (((x) & 0x0003) << 0) + +/* Bit definitions for LTV_SOTCTL */ +#define LTV_SDT(x) (((x) & 0x0007) << 10) +#define LTV_EQ(x) (((x) & 0x0007) << 2) + +/* Bit definitions for LTV_PWRCTL1 */ +#define LTV_VCOM_DISABLE (1 << 14) +#define LTV_VCOMOUT_ENABLE (1 << 11) +#define LTV_POWER_ON (1 << 9) +#define LTV_DRIVE_CURRENT(x) (((x) & 0x0007) << 4) /* 0=off, 5=max */ +#define LTV_SUPPLY_CURRENT(x) (((x) & 0x0007) << 0) /* 0=off, 5=max */ + +/* Bit definitions for LTV_PWRCTL2 */ +#define LTV_VCOML_ENABLE (1 << 13) +#define LTV_VCOML_VOLTAGE(x) (((x) & 0x001f) << 8) /* 0=1V, 31=-1V */ +#define LTV_VCOMH_VOLTAGE(x) (((x) & 0x001f) << 0) /* 0=3V, 31=4.5V */ + +#endif /* __LTV350QV_H */ |