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path: root/ANDROID_3.4.5/drivers/video/backlight/ams369fg06.c
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Diffstat (limited to 'ANDROID_3.4.5/drivers/video/backlight/ams369fg06.c')
-rw-r--r--ANDROID_3.4.5/drivers/video/backlight/ams369fg06.c636
1 files changed, 0 insertions, 636 deletions
diff --git a/ANDROID_3.4.5/drivers/video/backlight/ams369fg06.c b/ANDROID_3.4.5/drivers/video/backlight/ams369fg06.c
deleted file mode 100644
index 7bdadc79..00000000
--- a/ANDROID_3.4.5/drivers/video/backlight/ams369fg06.c
+++ /dev/null
@@ -1,636 +0,0 @@
-/*
- * ams369fg06 AMOLED LCD panel driver.
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Author: Jingoo Han <jg1.han@samsung.com>
- *
- * Derived from drivers/video/s6e63m0.c
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <linux/wait.h>
-#include <linux/module.h>
-#include <linux/fb.h>
-#include <linux/delay.h>
-#include <linux/gpio.h>
-#include <linux/spi/spi.h>
-#include <linux/lcd.h>
-#include <linux/backlight.h>
-
-#define SLEEPMSEC 0x1000
-#define ENDDEF 0x2000
-#define DEFMASK 0xFF00
-#define COMMAND_ONLY 0xFE
-#define DATA_ONLY 0xFF
-
-#define MAX_GAMMA_LEVEL 5
-#define GAMMA_TABLE_COUNT 21
-
-#define MIN_BRIGHTNESS 0
-#define MAX_BRIGHTNESS 255
-#define DEFAULT_BRIGHTNESS 150
-
-struct ams369fg06 {
- struct device *dev;
- struct spi_device *spi;
- unsigned int power;
- struct lcd_device *ld;
- struct backlight_device *bd;
- struct lcd_platform_data *lcd_pd;
-};
-
-static const unsigned short seq_display_on[] = {
- 0x14, 0x03,
- ENDDEF, 0x0000
-};
-
-static const unsigned short seq_display_off[] = {
- 0x14, 0x00,
- ENDDEF, 0x0000
-};
-
-static const unsigned short seq_stand_by_on[] = {
- 0x1D, 0xA1,
- SLEEPMSEC, 200,
- ENDDEF, 0x0000
-};
-
-static const unsigned short seq_stand_by_off[] = {
- 0x1D, 0xA0,
- SLEEPMSEC, 250,
- ENDDEF, 0x0000
-};
-
-static const unsigned short seq_setting[] = {
- 0x31, 0x08,
- 0x32, 0x14,
- 0x30, 0x02,
- 0x27, 0x01,
- 0x12, 0x08,
- 0x13, 0x08,
- 0x15, 0x00,
- 0x16, 0x00,
-
- 0xef, 0xd0,
- DATA_ONLY, 0xe8,
-
- 0x39, 0x44,
- 0x40, 0x00,
- 0x41, 0x3f,
- 0x42, 0x2a,
- 0x43, 0x27,
- 0x44, 0x27,
- 0x45, 0x1f,
- 0x46, 0x44,
- 0x50, 0x00,
- 0x51, 0x00,
- 0x52, 0x17,
- 0x53, 0x24,
- 0x54, 0x26,
- 0x55, 0x1f,
- 0x56, 0x43,
- 0x60, 0x00,
- 0x61, 0x3f,
- 0x62, 0x2a,
- 0x63, 0x25,
- 0x64, 0x24,
- 0x65, 0x1b,
- 0x66, 0x5c,
-
- 0x17, 0x22,
- 0x18, 0x33,
- 0x19, 0x03,
- 0x1a, 0x01,
- 0x22, 0xa4,
- 0x23, 0x00,
- 0x26, 0xa0,
-
- 0x1d, 0xa0,
- SLEEPMSEC, 300,
-
- 0x14, 0x03,
-
- ENDDEF, 0x0000
-};
-
-/* gamma value: 2.2 */
-static const unsigned int ams369fg06_22_250[] = {
- 0x00, 0x3f, 0x2a, 0x27, 0x27, 0x1f, 0x44,
- 0x00, 0x00, 0x17, 0x24, 0x26, 0x1f, 0x43,
- 0x00, 0x3f, 0x2a, 0x25, 0x24, 0x1b, 0x5c,
-};
-
-static const unsigned int ams369fg06_22_200[] = {
- 0x00, 0x3f, 0x28, 0x29, 0x27, 0x21, 0x3e,
- 0x00, 0x00, 0x10, 0x25, 0x27, 0x20, 0x3d,
- 0x00, 0x3f, 0x28, 0x27, 0x25, 0x1d, 0x53,
-};
-
-static const unsigned int ams369fg06_22_150[] = {
- 0x00, 0x3f, 0x2d, 0x29, 0x28, 0x23, 0x37,
- 0x00, 0x00, 0x0b, 0x25, 0x28, 0x22, 0x36,
- 0x00, 0x3f, 0x2b, 0x28, 0x26, 0x1f, 0x4a,
-};
-
-static const unsigned int ams369fg06_22_100[] = {
- 0x00, 0x3f, 0x30, 0x2a, 0x2b, 0x24, 0x2f,
- 0x00, 0x00, 0x00, 0x25, 0x29, 0x24, 0x2e,
- 0x00, 0x3f, 0x2f, 0x29, 0x29, 0x21, 0x3f,
-};
-
-static const unsigned int ams369fg06_22_50[] = {
- 0x00, 0x3f, 0x3c, 0x2c, 0x2d, 0x27, 0x24,
- 0x00, 0x00, 0x00, 0x22, 0x2a, 0x27, 0x23,
- 0x00, 0x3f, 0x3b, 0x2c, 0x2b, 0x24, 0x31,
-};
-
-struct ams369fg06_gamma {
- unsigned int *gamma_22_table[MAX_GAMMA_LEVEL];
-};
-
-static struct ams369fg06_gamma gamma_table = {
- .gamma_22_table[0] = (unsigned int *)&ams369fg06_22_50,
- .gamma_22_table[1] = (unsigned int *)&ams369fg06_22_100,
- .gamma_22_table[2] = (unsigned int *)&ams369fg06_22_150,
- .gamma_22_table[3] = (unsigned int *)&ams369fg06_22_200,
- .gamma_22_table[4] = (unsigned int *)&ams369fg06_22_250,
-};
-
-static int ams369fg06_spi_write_byte(struct ams369fg06 *lcd, int addr, int data)
-{
- u16 buf[1];
- struct spi_message msg;
-
- struct spi_transfer xfer = {
- .len = 2,
- .tx_buf = buf,
- };
-
- buf[0] = (addr << 8) | data;
-
- spi_message_init(&msg);
- spi_message_add_tail(&xfer, &msg);
-
- return spi_sync(lcd->spi, &msg);
-}
-
-static int ams369fg06_spi_write(struct ams369fg06 *lcd, unsigned char address,
- unsigned char command)
-{
- int ret = 0;
-
- if (address != DATA_ONLY)
- ret = ams369fg06_spi_write_byte(lcd, 0x70, address);
- if (command != COMMAND_ONLY)
- ret = ams369fg06_spi_write_byte(lcd, 0x72, command);
-
- return ret;
-}
-
-static int ams369fg06_panel_send_sequence(struct ams369fg06 *lcd,
- const unsigned short *wbuf)
-{
- int ret = 0, i = 0;
-
- while ((wbuf[i] & DEFMASK) != ENDDEF) {
- if ((wbuf[i] & DEFMASK) != SLEEPMSEC) {
- ret = ams369fg06_spi_write(lcd, wbuf[i], wbuf[i+1]);
- if (ret)
- break;
- } else
- mdelay(wbuf[i+1]);
- i += 2;
- }
-
- return ret;
-}
-
-static int _ams369fg06_gamma_ctl(struct ams369fg06 *lcd,
- const unsigned int *gamma)
-{
- unsigned int i = 0;
- int ret = 0;
-
- for (i = 0 ; i < GAMMA_TABLE_COUNT / 3; i++) {
- ret = ams369fg06_spi_write(lcd, 0x40 + i, gamma[i]);
- ret = ams369fg06_spi_write(lcd, 0x50 + i, gamma[i+7*1]);
- ret = ams369fg06_spi_write(lcd, 0x60 + i, gamma[i+7*2]);
- if (ret) {
- dev_err(lcd->dev, "failed to set gamma table.\n");
- goto gamma_err;
- }
- }
-
-gamma_err:
- return ret;
-}
-
-static int ams369fg06_gamma_ctl(struct ams369fg06 *lcd, int brightness)
-{
- int ret = 0;
- int gamma = 0;
-
- if ((brightness >= 0) && (brightness <= 50))
- gamma = 0;
- else if ((brightness > 50) && (brightness <= 100))
- gamma = 1;
- else if ((brightness > 100) && (brightness <= 150))
- gamma = 2;
- else if ((brightness > 150) && (brightness <= 200))
- gamma = 3;
- else if ((brightness > 200) && (brightness <= 255))
- gamma = 4;
-
- ret = _ams369fg06_gamma_ctl(lcd, gamma_table.gamma_22_table[gamma]);
-
- return ret;
-}
-
-static int ams369fg06_ldi_init(struct ams369fg06 *lcd)
-{
- int ret, i;
- static const unsigned short *init_seq[] = {
- seq_setting,
- seq_stand_by_off,
- };
-
- for (i = 0; i < ARRAY_SIZE(init_seq); i++) {
- ret = ams369fg06_panel_send_sequence(lcd, init_seq[i]);
- if (ret)
- break;
- }
-
- return ret;
-}
-
-static int ams369fg06_ldi_enable(struct ams369fg06 *lcd)
-{
- int ret, i;
- static const unsigned short *init_seq[] = {
- seq_stand_by_off,
- seq_display_on,
- };
-
- for (i = 0; i < ARRAY_SIZE(init_seq); i++) {
- ret = ams369fg06_panel_send_sequence(lcd, init_seq[i]);
- if (ret)
- break;
- }
-
- return ret;
-}
-
-static int ams369fg06_ldi_disable(struct ams369fg06 *lcd)
-{
- int ret, i;
-
- static const unsigned short *init_seq[] = {
- seq_display_off,
- seq_stand_by_on,
- };
-
- for (i = 0; i < ARRAY_SIZE(init_seq); i++) {
- ret = ams369fg06_panel_send_sequence(lcd, init_seq[i]);
- if (ret)
- break;
- }
-
- return ret;
-}
-
-static int ams369fg06_power_is_on(int power)
-{
- return ((power) <= FB_BLANK_NORMAL);
-}
-
-static int ams369fg06_power_on(struct ams369fg06 *lcd)
-{
- int ret = 0;
- struct lcd_platform_data *pd = NULL;
- struct backlight_device *bd = NULL;
-
- pd = lcd->lcd_pd;
- if (!pd) {
- dev_err(lcd->dev, "platform data is NULL.\n");
- return -EFAULT;
- }
-
- bd = lcd->bd;
- if (!bd) {
- dev_err(lcd->dev, "backlight device is NULL.\n");
- return -EFAULT;
- }
-
- if (!pd->power_on) {
- dev_err(lcd->dev, "power_on is NULL.\n");
- return -EFAULT;
- } else {
- pd->power_on(lcd->ld, 1);
- mdelay(pd->power_on_delay);
- }
-
- if (!pd->reset) {
- dev_err(lcd->dev, "reset is NULL.\n");
- return -EFAULT;
- } else {
- pd->reset(lcd->ld);
- mdelay(pd->reset_delay);
- }
-
- ret = ams369fg06_ldi_init(lcd);
- if (ret) {
- dev_err(lcd->dev, "failed to initialize ldi.\n");
- return ret;
- }
-
- ret = ams369fg06_ldi_enable(lcd);
- if (ret) {
- dev_err(lcd->dev, "failed to enable ldi.\n");
- return ret;
- }
-
- /* set brightness to current value after power on or resume. */
- ret = ams369fg06_gamma_ctl(lcd, bd->props.brightness);
- if (ret) {
- dev_err(lcd->dev, "lcd gamma setting failed.\n");
- return ret;
- }
-
- return 0;
-}
-
-static int ams369fg06_power_off(struct ams369fg06 *lcd)
-{
- int ret = 0;
- struct lcd_platform_data *pd = NULL;
-
- pd = lcd->lcd_pd;
- if (!pd) {
- dev_err(lcd->dev, "platform data is NULL\n");
- return -EFAULT;
- }
-
- ret = ams369fg06_ldi_disable(lcd);
- if (ret) {
- dev_err(lcd->dev, "lcd setting failed.\n");
- return -EIO;
- }
-
- mdelay(pd->power_off_delay);
-
- if (!pd->power_on) {
- dev_err(lcd->dev, "power_on is NULL.\n");
- return -EFAULT;
- } else
- pd->power_on(lcd->ld, 0);
-
- return 0;
-}
-
-static int ams369fg06_power(struct ams369fg06 *lcd, int power)
-{
- int ret = 0;
-
- if (ams369fg06_power_is_on(power) &&
- !ams369fg06_power_is_on(lcd->power))
- ret = ams369fg06_power_on(lcd);
- else if (!ams369fg06_power_is_on(power) &&
- ams369fg06_power_is_on(lcd->power))
- ret = ams369fg06_power_off(lcd);
-
- if (!ret)
- lcd->power = power;
-
- return ret;
-}
-
-static int ams369fg06_get_power(struct lcd_device *ld)
-{
- struct ams369fg06 *lcd = lcd_get_data(ld);
-
- return lcd->power;
-}
-
-static int ams369fg06_set_power(struct lcd_device *ld, int power)
-{
- struct ams369fg06 *lcd = lcd_get_data(ld);
-
- if (power != FB_BLANK_UNBLANK && power != FB_BLANK_POWERDOWN &&
- power != FB_BLANK_NORMAL) {
- dev_err(lcd->dev, "power value should be 0, 1 or 4.\n");
- return -EINVAL;
- }
-
- return ams369fg06_power(lcd, power);
-}
-
-static int ams369fg06_get_brightness(struct backlight_device *bd)
-{
- return bd->props.brightness;
-}
-
-static int ams369fg06_set_brightness(struct backlight_device *bd)
-{
- int ret = 0;
- int brightness = bd->props.brightness;
- struct ams369fg06 *lcd = dev_get_drvdata(&bd->dev);
-
- if (brightness < MIN_BRIGHTNESS ||
- brightness > bd->props.max_brightness) {
- dev_err(&bd->dev, "lcd brightness should be %d to %d.\n",
- MIN_BRIGHTNESS, MAX_BRIGHTNESS);
- return -EINVAL;
- }
-
- ret = ams369fg06_gamma_ctl(lcd, bd->props.brightness);
- if (ret) {
- dev_err(&bd->dev, "lcd brightness setting failed.\n");
- return -EIO;
- }
-
- return ret;
-}
-
-static struct lcd_ops ams369fg06_lcd_ops = {
- .get_power = ams369fg06_get_power,
- .set_power = ams369fg06_set_power,
-};
-
-static const struct backlight_ops ams369fg06_backlight_ops = {
- .get_brightness = ams369fg06_get_brightness,
- .update_status = ams369fg06_set_brightness,
-};
-
-static int __devinit ams369fg06_probe(struct spi_device *spi)
-{
- int ret = 0;
- struct ams369fg06 *lcd = NULL;
- struct lcd_device *ld = NULL;
- struct backlight_device *bd = NULL;
- struct backlight_properties props;
-
- lcd = kzalloc(sizeof(struct ams369fg06), GFP_KERNEL);
- if (!lcd)
- return -ENOMEM;
-
- /* ams369fg06 lcd panel uses 3-wire 16bits SPI Mode. */
- spi->bits_per_word = 16;
-
- ret = spi_setup(spi);
- if (ret < 0) {
- dev_err(&spi->dev, "spi setup failed.\n");
- goto out_free_lcd;
- }
-
- lcd->spi = spi;
- lcd->dev = &spi->dev;
-
- lcd->lcd_pd = spi->dev.platform_data;
- if (!lcd->lcd_pd) {
- dev_err(&spi->dev, "platform data is NULL\n");
- goto out_free_lcd;
- }
-
- ld = lcd_device_register("ams369fg06", &spi->dev, lcd,
- &ams369fg06_lcd_ops);
- if (IS_ERR(ld)) {
- ret = PTR_ERR(ld);
- goto out_free_lcd;
- }
-
- lcd->ld = ld;
-
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_RAW;
- props.max_brightness = MAX_BRIGHTNESS;
-
- bd = backlight_device_register("ams369fg06-bl", &spi->dev, lcd,
- &ams369fg06_backlight_ops, &props);
- if (IS_ERR(bd)) {
- ret = PTR_ERR(bd);
- goto out_lcd_unregister;
- }
-
- bd->props.brightness = DEFAULT_BRIGHTNESS;
- lcd->bd = bd;
-
- if (!lcd->lcd_pd->lcd_enabled) {
- /*
- * if lcd panel was off from bootloader then
- * current lcd status is powerdown and then
- * it enables lcd panel.
- */
- lcd->power = FB_BLANK_POWERDOWN;
-
- ams369fg06_power(lcd, FB_BLANK_UNBLANK);
- } else
- lcd->power = FB_BLANK_UNBLANK;
-
- dev_set_drvdata(&spi->dev, lcd);
-
- dev_info(&spi->dev, "ams369fg06 panel driver has been probed.\n");
-
- return 0;
-
-out_lcd_unregister:
- lcd_device_unregister(ld);
-out_free_lcd:
- kfree(lcd);
- return ret;
-}
-
-static int __devexit ams369fg06_remove(struct spi_device *spi)
-{
- struct ams369fg06 *lcd = dev_get_drvdata(&spi->dev);
-
- ams369fg06_power(lcd, FB_BLANK_POWERDOWN);
- backlight_device_unregister(lcd->bd);
- lcd_device_unregister(lcd->ld);
- kfree(lcd);
-
- return 0;
-}
-
-#if defined(CONFIG_PM)
-static unsigned int before_power;
-
-static int ams369fg06_suspend(struct spi_device *spi, pm_message_t mesg)
-{
- int ret = 0;
- struct ams369fg06 *lcd = dev_get_drvdata(&spi->dev);
-
- dev_dbg(&spi->dev, "lcd->power = %d\n", lcd->power);
-
- before_power = lcd->power;
-
- /*
- * when lcd panel is suspend, lcd panel becomes off
- * regardless of status.
- */
- ret = ams369fg06_power(lcd, FB_BLANK_POWERDOWN);
-
- return ret;
-}
-
-static int ams369fg06_resume(struct spi_device *spi)
-{
- int ret = 0;
- struct ams369fg06 *lcd = dev_get_drvdata(&spi->dev);
-
- /*
- * after suspended, if lcd panel status is FB_BLANK_UNBLANK
- * (at that time, before_power is FB_BLANK_UNBLANK) then
- * it changes that status to FB_BLANK_POWERDOWN to get lcd on.
- */
- if (before_power == FB_BLANK_UNBLANK)
- lcd->power = FB_BLANK_POWERDOWN;
-
- dev_dbg(&spi->dev, "before_power = %d\n", before_power);
-
- ret = ams369fg06_power(lcd, before_power);
-
- return ret;
-}
-#else
-#define ams369fg06_suspend NULL
-#define ams369fg06_resume NULL
-#endif
-
-static void ams369fg06_shutdown(struct spi_device *spi)
-{
- struct ams369fg06 *lcd = dev_get_drvdata(&spi->dev);
-
- ams369fg06_power(lcd, FB_BLANK_POWERDOWN);
-}
-
-static struct spi_driver ams369fg06_driver = {
- .driver = {
- .name = "ams369fg06",
- .bus = &spi_bus_type,
- .owner = THIS_MODULE,
- },
- .probe = ams369fg06_probe,
- .remove = __devexit_p(ams369fg06_remove),
- .shutdown = ams369fg06_shutdown,
- .suspend = ams369fg06_suspend,
- .resume = ams369fg06_resume,
-};
-
-module_spi_driver(ams369fg06_driver);
-
-MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>");
-MODULE_DESCRIPTION("ams369fg06 LCD Driver");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-01-08 05:57:10 +0000