/*
* LCD panel support for the Siemens SX1 mobile phone
*
* Current version : Vovan888@gmail.com, great help from FCA00000
*
* 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/module.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <asm/arch/gpio.h>
#include <asm/arch/omapfb.h>
#include <asm/arch/mcbsp.h>
#include <asm/arch/mux.h>
/*
* OMAP310 GPIO registers
*/
#define GPIO_DATA_INPUT 0xfffce000
#define GPIO_DATA_OUTPUT 0xfffce004
#define GPIO_DIR_CONTROL 0xfffce008
#define GPIO_INT_CONTROL 0xfffce00c
#define GPIO_INT_MASK 0xfffce010
#define GPIO_INT_STATUS 0xfffce014
#define GPIO_PIN_CONTROL 0xfffce018
#define A_LCD_SSC_RD 3
#define A_LCD_SSC_SD 7
#define _A_LCD_RESET 9
#define _A_LCD_SSC_CS 12
#define _A_LCD_SSC_A0 13
#define DSP_REG 0xE1017024
const unsigned char INIT_1[12] = {
0x1C, 0x02, 0x88, 0x00, 0x1E, 0xE0, 0x00, 0xDC, 0x00, 0x02, 0x00
};
const unsigned char INIT_2[127] = {
0x15, 0x00, 0x29, 0x00, 0x3E, 0x00, 0x51, 0x00,
0x65, 0x00, 0x7A, 0x00, 0x8D, 0x00, 0xA1, 0x00,
0xB6, 0x00, 0xC7, 0x00, 0xD8, 0x00, 0xEB, 0x00,
0xFB, 0x00, 0x0B, 0x01, 0x1B, 0x01, 0x27, 0x01,
0x34, 0x01, 0x41, 0x01, 0x4C, 0x01, 0x55, 0x01,
0x5F, 0x01, 0x68, 0x01, 0x70, 0x01, 0x78, 0x01,
0x7E, 0x01, 0x86, 0x01, 0x8C, 0x01, 0x94, 0x01,
0x9B, 0x01, 0xA1, 0x01, 0xA4, 0x01, 0xA9, 0x01,
0xAD, 0x01, 0xB2, 0x01, 0xB7, 0x01, 0xBC, 0x01,
0xC0, 0x01, 0xC4, 0x01, 0xC8, 0x01, 0xCB, 0x01,
0xCF, 0x01, 0xD2, 0x01, 0xD5, 0x01, 0xD8, 0x01,
0xDB, 0x01, 0xE0, 0x01, 0xE3, 0x01, 0xE6, 0x01,
0xE8, 0x01, 0xEB, 0x01, 0xEE, 0x01, 0xF1, 0x01,
0xF3, 0x01, 0xF8, 0x01, 0xF9, 0x01, 0xFC, 0x01,
0x00, 0x02, 0x03, 0x02, 0x07, 0x02, 0x09, 0x02,
0x0E, 0x02, 0x13, 0x02, 0x1C, 0x02, 0x00
};
const unsigned char INIT_3[15] = {
0x14, 0x26, 0x33, 0x3D, 0x45, 0x4D, 0x53, 0x59,
0x5E, 0x63, 0x67, 0x6D, 0x71, 0x78, 0xFF
};
static void epson_sendbyte(int flag, unsigned char byte)
{
int i, shifter = 0x80;
if (!flag)
omap_set_gpio_dataout(_A_LCD_SSC_A0, 0);
mdelay(2);
omap_set_gpio_dataout(A_LCD_SSC_RD, 1);
omap_set_gpio_dataout(A_LCD_SSC_SD, flag);
OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200);
OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202);
for (i = 0; i < 8; i++) {
OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200);
omap_set_gpio_dataout(A_LCD_SSC_SD, shifter & byte);
OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202);
shifter >>= 1;
}
omap_set_gpio_dataout(_A_LCD_SSC_A0, 1);
}
static void init_system(void)
{
omap_mcbsp_request(OMAP_MCBSP3);
omap_mcbsp_stop(OMAP_MCBSP3);
}
static void setup_GPIO(void)
{
/* new wave */
omap_request_gpio(A_LCD_SSC_RD);
omap_request_gpio(A_LCD_SSC_SD);
omap_request_gpio(_A_LCD_RESET);
omap_request_gpio(_A_LCD_SSC_CS);
omap_request_gpio(_A_LCD_SSC_A0);
/* set all GPIOs to output */
omap_set_gpio_direction(A_LCD_SSC_RD, 0);
omap_set_gpio_direction(A_LCD_SSC_SD, 0);
omap_set_gpio_direction(_A_LCD_RESET, 0);
omap_set_gpio_direction(_A_LCD_SSC_CS, 0);
omap_set_gpio_direction(_A_LCD_SSC_A0, 0);
/* set GPIO data */
omap_set_gpio_dataout(A_LCD_SSC_RD, 1);
omap_set_gpio_dataout(A_LCD_SSC_SD, 0);
omap_set_gpio_dataout(_A_LCD_RESET, 0);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
omap_set_gpio_dataout(_A_LCD_SSC_A0, 1);
}
static void display_init(void)
{
int i;
omap_cfg_reg(MCBSP3_CLKX);
mdelay(2);
setup_GPIO();
mdelay(2);
/* reset LCD */
omap_set_gpio_dataout(A_LCD_SSC_SD, 1);
epson_sendbyte(0, 0x25);
omap_set_gpio_dataout(_A_LCD_RESET, 0);
mdelay(10);
omap_set_gpio_dataout(_A_LCD_RESET, 1);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
mdelay(2);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD, phase 1 */
epson_sendbyte(0, 0xCA);
for (i = 0; i < 10; i++)
epson_sendbyte(1, INIT_1[i]);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD phase 2 */
epson_sendbyte(0, 0xCB);
for (i = 0; i < 125; i++)
epson_sendbyte(1, INIT_2[i]);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD phase 2a */
epson_sendbyte(0, 0xCC);
for (i = 0; i < 14; i++)
epson_sendbyte(1, INIT_3[i]);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD phase 3 */
epson_sendbyte(0, 0xBC);
epson_sendbyte(1, 0x08);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD phase 4 */
epson_sendbyte(0, 0x07);
epson_sendbyte(1, 0x05);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD phase 5 */
epson_sendbyte(0, 0x94);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD phase 6 */
epson_sendbyte(0, 0xC6);
epson_sendbyte(1, 0x80);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
mdelay(100); /* used to be 1000 */
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD phase 7 */
epson_sendbyte(0, 0x16);
epson_sendbyte(1, 0x02);
epson_sendbyte(1, 0x00);
epson_sendbyte(1, 0xB1);
epson_sendbyte(1, 0x00);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD phase 8 */
epson_sendbyte(0, 0x76);
epson_sendbyte(1, 0x00);
epson_sendbyte(1, 0x00);
epson_sendbyte(1, 0xDB);
epson_sendbyte(1, 0x00);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
/* init LCD phase 9 */
epson_sendbyte(0, 0xAF);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
}
static int sx1_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
{
return 0;
}
static void sx1_panel_cleanup(struct lcd_panel *panel)
{
}
static void sx1_panel_disable(struct lcd_panel *panel)
{
printk(KERN_INFO "SX1: LCD panel disable\n");
sx1_setmmipower(0);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
epson_sendbyte(0, 0x25);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
epson_sendbyte(0, 0xAE);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
mdelay(100);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);
epson_sendbyte(0, 0x95);
omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);
}
static int sx1_panel_enable(struct lcd_panel *panel)
{
printk(KERN_INFO "lcd_sx1: LCD panel enable\n");
init_system();
display_init();
sx1_setmmipower(1);
sx1_setbacklight(0x18);
sx1_setkeylight (0x06);
return 0;
}
static unsigned long sx1_panel_get_caps(struct lcd_panel *panel)
{
return 0;
}
struct lcd_panel sx1_panel = {
.name = "sx1",
.config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC |
OMAP_LCDC_INV_HSYNC | OMAP_LCDC_INV_PIX_CLOCK |
OMAP_LCDC_INV_OUTPUT_EN,
.x_res = 176,
.y_res = 220,
.data_lines = 16,
.bpp = 16,
.hsw = 5,
.hfp = 5,
.hbp = 5,
.vsw = 2,
.vfp = 1,
.vbp = 1,
.pixel_clock = 1500,
.init = sx1_panel_init,
.cleanup = sx1_panel_cleanup,
.enable = sx1_panel_enable,
.disable = sx1_panel_disable,
.get_caps = sx1_panel_get_caps,
};
static int sx1_panel_probe(struct platform_device *pdev)
{
omapfb_register_panel(&sx1_panel);
return 0;
}
static int sx1_panel_remove(struct platform_device *pdev)
{
return 0;
}
static int sx1_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
{
return 0;
}
static int sx1_panel_resume(struct platform_device *pdev)
{
return 0;
}
struct platform_driver sx1_panel_driver = {
.probe = sx1_panel_probe,
.remove = sx1_panel_remove,
.suspend = sx1_panel_suspend,
.resume = sx1_panel_resume,
.driver = {
.name = "lcd_sx1",
.owner = THIS_MODULE,
},
};
static int sx1_panel_drv_init(void)
{
return platform_driver_register(&sx1_panel_driver);
}
static void sx1_panel_drv_cleanup(void)
{
platform_driver_unregister(&sx1_panel_driver);
}
module_init(sx1_panel_drv_init);
module_exit(sx1_panel_drv_cleanup);
