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/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <linux/delay.h>
#include <linux/module.h>
#include <mach/gpio.h>
#include <mach/pmic.h>
#include "msm_fb.h"
#ifdef CONFIG_FB_MSM_TRY_MDDI_CATCH_LCDC_PRISM
#include "mddihosti.h"
#endif
static int spi_cs;
static int spi_sclk;
static int spi_mosi;
static int spi_miso;
struct toshiba_state_type{
boolean disp_initialized;
boolean display_on;
boolean disp_powered_up;
};
static struct toshiba_state_type toshiba_state = { 0 };
static struct msm_panel_common_pdata *lcdc_toshiba_pdata;
static void toshiba_spi_write_byte(char dc, uint8 data)
{
uint32 bit;
int bnum;
gpio_set_value(spi_sclk, 0); /* clk low */
/* dc: 0 for command, 1 for parameter */
gpio_set_value(spi_mosi, dc);
udelay(1); /* at least 20 ns */
gpio_set_value(spi_sclk, 1); /* clk high */
udelay(1); /* at least 20 ns */
bnum = 8; /* 8 data bits */
bit = 0x80;
while (bnum) {
gpio_set_value(spi_sclk, 0); /* clk low */
if (data & bit)
gpio_set_value(spi_mosi, 1);
else
gpio_set_value(spi_mosi, 0);
udelay(1);
gpio_set_value(spi_sclk, 1); /* clk high */
udelay(1);
bit >>= 1;
bnum--;
}
}
static void toshiba_spi_write(char cmd, uint32 data, int num)
{
char *bp;
gpio_set_value(spi_cs, 1); /* cs high */
/* command byte first */
toshiba_spi_write_byte(0, cmd);
/* followed by parameter bytes */
if (num) {
bp = (char *)&data;;
bp += (num - 1);
while (num) {
toshiba_spi_write_byte(1, *bp);
num--;
bp--;
}
}
gpio_set_value(spi_cs, 0); /* cs low */
udelay(1);
}
void toshiba_spi_read_bytes(char cmd, uint32 *data, int num)
{
uint32 dbit, bits;
int bnum;
gpio_set_value(spi_cs, 1); /* cs high */
/* command byte first */
toshiba_spi_write_byte(0, cmd);
if (num > 1) {
/* extra dc bit */
gpio_set_value(spi_sclk, 0); /* clk low */
udelay(1);
dbit = gpio_get_value(spi_miso);/* dc bit */
udelay(1);
gpio_set_value(spi_sclk, 1); /* clk high */
}
/* followed by data bytes */
bnum = num * 8; /* number of bits */
bits = 0;
while (bnum) {
bits <<= 1;
gpio_set_value(spi_sclk, 0); /* clk low */
udelay(1);
dbit = gpio_get_value(spi_miso);
udelay(1);
gpio_set_value(spi_sclk, 1); /* clk high */
bits |= dbit;
bnum--;
}
*data = bits;
udelay(1);
gpio_set_value(spi_cs, 0); /* cs low */
udelay(1);
}
static void spi_pin_assign(void)
{
/* Setting the Default GPIO's */
spi_sclk = *(lcdc_toshiba_pdata->gpio_num);
spi_cs = *(lcdc_toshiba_pdata->gpio_num + 1);
spi_mosi = *(lcdc_toshiba_pdata->gpio_num + 2);
spi_miso = *(lcdc_toshiba_pdata->gpio_num + 3);
}
static void toshiba_disp_powerup(void)
{
if (!toshiba_state.disp_powered_up && !toshiba_state.display_on) {
/* Reset the hardware first */
/* Include DAC power up implementation here */
toshiba_state.disp_powered_up = TRUE;
}
}
static void toshiba_disp_on(void)
{
uint32 data;
gpio_set_value(spi_cs, 0); /* low */
gpio_set_value(spi_sclk, 1); /* high */
gpio_set_value(spi_mosi, 0);
gpio_set_value(spi_miso, 0);
if (toshiba_state.disp_powered_up && !toshiba_state.display_on) {
toshiba_spi_write(0, 0, 0);
mdelay(7);
toshiba_spi_write(0, 0, 0);
mdelay(7);
toshiba_spi_write(0, 0, 0);
mdelay(7);
toshiba_spi_write(0xba, 0x11, 1);
toshiba_spi_write(0x36, 0x00, 1);
mdelay(1);
toshiba_spi_write(0x3a, 0x60, 1);
toshiba_spi_write(0xb1, 0x5d, 1);
mdelay(1);
toshiba_spi_write(0xb2, 0x33, 1);
toshiba_spi_write(0xb3, 0x22, 1);
mdelay(1);
toshiba_spi_write(0xb4, 0x02, 1);
toshiba_spi_write(0xb5, 0x1e, 1); /* vcs -- adjust brightness */
mdelay(1);
toshiba_spi_write(0xb6, 0x27, 1);
toshiba_spi_write(0xb7, 0x03, 1);
mdelay(1);
toshiba_spi_write(0xb9, 0x24, 1);
toshiba_spi_write(0xbd, 0xa1, 1);
mdelay(1);
toshiba_spi_write(0xbb, 0x00, 1);
toshiba_spi_write(0xbf, 0x01, 1);
mdelay(1);
toshiba_spi_write(0xbe, 0x00, 1);
toshiba_spi_write(0xc0, 0x11, 1);
mdelay(1);
toshiba_spi_write(0xc1, 0x11, 1);
toshiba_spi_write(0xc2, 0x11, 1);
mdelay(1);
toshiba_spi_write(0xc3, 0x3232, 2);
mdelay(1);
toshiba_spi_write(0xc4, 0x3232, 2);
mdelay(1);
toshiba_spi_write(0xc5, 0x3232, 2);
mdelay(1);
toshiba_spi_write(0xc6, 0x3232, 2);
mdelay(1);
toshiba_spi_write(0xc7, 0x6445, 2);
mdelay(1);
toshiba_spi_write(0xc8, 0x44, 1);
toshiba_spi_write(0xc9, 0x52, 1);
mdelay(1);
toshiba_spi_write(0xca, 0x00, 1);
mdelay(1);
toshiba_spi_write(0xec, 0x02a4, 2); /* 0x02a4 */
mdelay(1);
toshiba_spi_write(0xcf, 0x01, 1);
mdelay(1);
toshiba_spi_write(0xd0, 0xc003, 2); /* c003 */
mdelay(1);
toshiba_spi_write(0xd1, 0x01, 1);
mdelay(1);
toshiba_spi_write(0xd2, 0x0028, 2);
mdelay(1);
toshiba_spi_write(0xd3, 0x0028, 2);
mdelay(1);
toshiba_spi_write(0xd4, 0x26a4, 2);
mdelay(1);
toshiba_spi_write(0xd5, 0x20, 1);
mdelay(1);
toshiba_spi_write(0xef, 0x3200, 2);
mdelay(32);
toshiba_spi_write(0xbc, 0x80, 1); /* wvga pass through */
toshiba_spi_write(0x3b, 0x00, 1);
mdelay(1);
toshiba_spi_write(0xb0, 0x16, 1);
mdelay(1);
toshiba_spi_write(0xb8, 0xfff5, 2);
mdelay(1);
toshiba_spi_write(0x11, 0, 0);
mdelay(5);
toshiba_spi_write(0x29, 0, 0);
mdelay(5);
toshiba_state.display_on = TRUE;
}
data = 0;
toshiba_spi_read_bytes(0x04, &data, 3);
printk(KERN_INFO "toshiba_disp_on: id=%x\n", data);
}
static int lcdc_toshiba_panel_on(struct platform_device *pdev)
{
if (!toshiba_state.disp_initialized) {
/* Configure reset GPIO that drives DAC */
if (lcdc_toshiba_pdata->panel_config_gpio)
lcdc_toshiba_pdata->panel_config_gpio(1);
toshiba_disp_powerup();
toshiba_disp_on();
toshiba_state.disp_initialized = TRUE;
}
return 0;
}
static int lcdc_toshiba_panel_off(struct platform_device *pdev)
{
if (toshiba_state.disp_powered_up && toshiba_state.display_on) {
/* Main panel power off (Deep standby in) */
toshiba_spi_write(0x28, 0,
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