/* Copyright (c) 2008-2009, 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 "msm_fb.h"
#include <linux/memory.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/time.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include "linux/proc_fs.h"
#include <linux/delay.h>
#include <mach/hardware.h>
#include <linux/io.h>
#include <asm/system.h>
#include <asm/mach-types.h>
/* The following are for MSM5100 on Gator
*/
#ifdef FEATURE_PM1000
#include "pm1000.h"
#endif /* FEATURE_PM1000 */
/* The following are for MSM6050 on Bambi
*/
#ifdef FEATURE_PMIC_LCDKBD_LED_DRIVER
#include "pm.h"
#endif /* FEATURE_PMIC_LCDKBD_LED_DRIVER */
#ifdef DISP_DEVICE_18BPP
#undef DISP_DEVICE_18BPP
#define DISP_DEVICE_16BPP
#endif
#define QCIF_WIDTH 176
#define QCIF_HEIGHT 220
static void *DISP_CMD_PORT;
static void *DISP_DATA_PORT;
#define DISP_CMD_DISON 0xaf
#define DISP_CMD_DISOFF 0xae
#define DISP_CMD_DISNOR 0xa6
#define DISP_CMD_DISINV 0xa7
#define DISP_CMD_DISCTL 0xca
#define DISP_CMD_GCP64 0xcb
#define DISP_CMD_GCP16 0xcc
#define DISP_CMD_GSSET 0xcd
#define DISP_GS_2 0x02
#define DISP_GS_16 0x01
#define DISP_GS_64 0x00
#define DISP_CMD_SLPIN 0x95
#define DISP_CMD_SLPOUT 0x94
#define DISP_CMD_SD_PSET 0x75
#define DISP_CMD_MD_PSET 0x76
#define DISP_CMD_SD_CSET 0x15
#define DISP_CMD_MD_CSET 0x16
#define DISP_CMD_DATCTL 0xbc
#define DISP_DATCTL_666 0x08
#define DISP_DATCTL_565 0x28
#define DISP_DATCTL_444 0x38
#define DISP_CMD_RAMWR 0x5c
#define DISP_CMD_RAMRD 0x5d
#define DISP_CMD_PTLIN 0xa8
#define DISP_CMD_PTLOUT 0xa9
#define DISP_CMD_ASCSET 0xaa
#define DISP_CMD_SCSTART 0xab
#define DISP_CMD_VOLCTL 0xc6
#define DISP_VOLCTL_TONE 0x80
#define DISP_CMD_NOp 0x25
#define DISP_CMD_OSSEL 0xd0
#define DISP_CMD_3500KSET 0xd1
#define DISP_CMD_3500KEND 0xd2
#define DISP_CMD_14MSET 0xd3
#define DISP_CMD_14MEND 0xd4
#define DISP_CMD_OUT(cmd) outpw(DISP_CMD_PORT, cmd);
#define DISP_DATA_OUT(data) outpw(DISP_DATA_PORT, data);
#define DISP_DATA_IN() inpw(DISP_DATA_PORT);
/* Epson device column number starts at 2
*/
#define DISP_SET_RECT(ulhc_row, lrhc_row, ulhc_col, lrhc_col) \
DISP_CMD_OUT(DISP_CMD_SD_PSET) \
DISP_DATA_OUT((ulhc_row) & 0xFF) \
DISP_DATA_OUT((ulhc_row) >> 8) \
DISP_DATA_OUT((lrhc_row) & 0xFF) \
DISP_DATA_OUT((lrhc_row) >> 8) \
DISP_CMD_OUT(DISP_CMD_SD_CSET) \
DISP_DATA_OUT(((ulhc_col)+2) & 0xFF) \
DISP_DATA_OUT(((ulhc_col)+2) >> 8) \
DISP_DATA_OUT(((lrhc_col)+2) & 0xFF) \
DISP_DATA_OUT(((lrhc_col)+2) >> 8)
#define DISP_MIN_CONTRAST 0
#define DISP_MAX_CONTRAST 127
#define DISP_DEFAULT_CONTRAST 80
#define DISP_MIN_BACKLIGHT 0
#define DISP_MAX_BACKLIGHT 15
#define DISP_DEFAULT_BACKLIGHT 2
#define WAIT_SEC(sec) mdelay((sec)/1000)
static word disp_area_start_row;
static word disp_area_end_row;
static byte disp_contrast = DISP_DEFAULT_CONTRAST;
static boolean disp_powered_up;
static boolean disp_initialized = FALSE;
/* For some reason the contrast set at init time is not good. Need to do
* it again
*/
static boolean display_on = FALSE;
static void epsonQcif_disp_init(struct platform_device *pdev);
static void epsonQcif_disp_set_contrast(word contrast);
static void epsonQcif_disp_set_display_area(word start_row, word end_row);
static int epsonQcif_disp_off(struct platform_device *pdev);
static int epsonQcif_disp_on(struct platform_device *pdev);
static void epsonQcif_disp_set_rect(int x, int y, int xres, int yres);
volatile word databack;
static void epsonQcif_disp_init(struct platform_device *pdev)
{
struct msm_fb_data_type *mfd;
int i;
if (disp_initialized)
return;
mfd = platform_get_drvdata(pdev);
DISP_CMD_PORT = mfd->cmd_port;
DISP_DATA_PORT = mfd->data_port;
/* Sleep in */
DISP_CMD_OUT(DISP_CMD_SLPIN);
/* Display off */
DISP_CMD_OUT(DISP_CMD_DISOFF);
/* Display normal */
DISP_CMD_OUT(DISP_CMD_DISNOR);
/* Set data mode */
DISP_CMD_OUT(DISP_CMD_DATCTL);
DISP_DATA_OUT(DISP_DATCTL_565);
/* Set display timing */
DISP_CMD_OUT(DISP_CMD_DISCTL);
DISP_DATA_OUT(0x1c); /* p1 */
DISP_DATA_OUT(0x02); /* p1 */
DISP_DATA_OUT(0x82); /* p2 */
DISP_DATA_OUT(0x00); /* p3 */
DISP_DATA_OUT(0x00); /* p4 */
DISP_DATA_OUT(0xe0); /* p5 */
DISP_DATA_OUT(0x00); /* p5 */
DISP_DATA_OUT(0xdc); /* p6 */
DISP_DATA_OUT(0x00); /* p6 */
DISP_DATA_OUT(0x02); /* p7 */
DISP_DATA_OUT(0x00); /* p8 */
/* Set 64 gray scale level */
DISP_CMD_OUT(DISP_CMD_GCP64);
DISP_DATA_OUT(0x08); /* p01 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0x2a); /* p02 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0x4e); /* p03 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0x6b); /* p04 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0x88); /* p05 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0xa3); /* p06 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0xba); /* p07 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0xd1); /* p08 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0xe5); /* p09 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0xf3); /* p10 */
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0x03); /* p11 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x13); /* p12 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x22); /* p13 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x2f); /* p14 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x3b); /* p15 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x46); /* p16 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x51); /* p17 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x5b); /* p18 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x64); /* p19 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x6c); /* p20 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x74); /* p21 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x7c); /* p22 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x83); /* p23 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x8a); /* p24 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x91); /* p25 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x98); /* p26 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x9f); /* p27 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xa6); /* p28 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xac); /* p29 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xb2); /* p30 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xb7); /* p31 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xbc); /* p32 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xc1); /* p33 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xc6); /* p34 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xcb); /* p35 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xd0); /* p36 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xd4); /* p37 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xd8); /* p38 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xdc); /* p39 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xe0); /* p40 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xe4); /* p41 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xe8); /* p42 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xec); /* p43 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xf0); /* p44 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xf4); /* p45 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xf8); /* p46 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xfb); /* p47 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xfe); /* p48 */
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0x01); /* p49 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x03); /* p50 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x05); /* p51 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x07); /* p52 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x09); /* p53 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x0b); /* p54 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x0d); /* p55 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x0f); /* p56 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x11); /* p57 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x13); /* p58 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x15); /* p59 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x17); /* p60 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x19); /* p61 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x1b); /* p62 */
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x1c); /* p63 */
DISP_DATA_OUT(0x02);
/* Set 16 gray scale level */
DISP_CMD_OUT(DISP_CMD_GCP16);
DISP_DATA_OUT(0x1a); /* p01 */
DISP_DATA_OUT(0x32); /* p02 */
DISP_DATA_OUT(0x42); /* p03 */
DISP_DATA_OUT(0x4c); /* p04 */
DISP_DATA_OUT(0x58); /* p05 */
DISP_DATA_OUT(0x5f); /* p06 */
DISP_DATA_OUT(0x66); /* p07 */
DISP_DATA_OUT(0x6b); /* p08 */
DISP_DATA_OUT(0x70); /* p09 */
DISP_DATA_OUT(0x74); /* p10 */
DISP_DATA_OUT(0x78); /* p11 */
DISP_DATA_OUT(0x7b); /* p12 */
DISP_DATA_OUT(0x7e); /* p13 */
DISP_DATA_OUT(0x80); /* p14 */
DISP_DATA_OUT(0x82); /* p15 */
/* Set DSP column */
DISP_CMD_OUT(DISP_CMD_MD_CSET);
DISP_DATA_OUT(0xff);
DISP_DATA_OUT(0x03);
DISP_DATA_OUT(0xff);
DISP_DATA_OUT(0x03);
/* Set DSP page */
DISP_CMD_OUT(DISP_CMD_MD_PSET);
DISP_DATA_OUT(0xff);
DISP_DATA_OUT(0x01);
DISP_DATA_OUT(0xff);
DISP_DATA_OUT(0x01);
/* Set ARM column */
DISP_CMD_OUT(DISP_CMD_SD_CSET);
DISP_DATA_OUT(0x02);
DISP_DATA_OUT(0x00);
DISP_DATA_OUT((QCIF_WIDTH + 1) & 0xFF);
DISP_DATA_OUT((QCIF_WIDTH + 1) >> 8);
/* Set ARM page */
DISP_CMD_OUT(DISP_CMD_SD_PSET);
DISP_DATA_OUT(0x00);
DISP_DATA_OUT(0x00);
DISP_DATA_OUT((QCIF_HEIGHT - 1) & 0xFF);
DISP_DATA_OUT((QCIF_HEIGHT - 1) >> 8);
/* Set 64 gray scales */
DISP_CMD_OUT(DISP_CMD_GSSET);
DISP_DATA_OUT(DISP_GS_64);
DISP_CMD_OUT(DISP_CMD_OSSEL);
DISP_DATA_OUT(0);
/* Sleep out */
DISP_CMD_OUT(DISP_CMD_SLPOUT);
WAIT_SEC(40000);
/* Initialize power IC */
DISP_CMD_OUT(DISP_CMD_VOLCTL);
DISP_DATA_OUT(DISP_VOLCTL_TONE);
WAIT_SEC(40000);
/* Set electronic volume, d'xx */
DISP_CMD_OUT(DISP_CMD_VOLCTL);
DISP_DATA_OUT(DISP_DEFAULT_CONTRAST); /* value from 0 to 127 */
/* Initialize display data */
DISP_SET_RECT(0, (QCIF_HEIGHT - 1), 0, (QCIF_WIDTH - 1));
DISP_CMD_OUT(DISP_CMD_RAMWR);
for (i = 0; i < QCIF_HEIGHT * QCIF_WIDTH; i++)
DISP_DATA_OUT(0xffff);
DISP_CMD_OUT(DISP_CMD_RAMRD);
databack = DISP_DATA_IN();
databack = DISP_DATA_IN();
databack = DISP_DATA_IN();
databack = DISP_DATA_IN();
WAIT_SEC(80000);
DISP_CMD_OUT(DISP_CMD_DISON);
disp_area_start_row = 0;
disp_area_end_row = QCIF_HEIGHT - 1;
disp_powered_up = TRUE;
disp_initialized = TRUE;
epsonQcif_disp_set_display_area(0, QCIF_HEIGHT - 1);
display_on = TRUE;
}
static void epsonQcif_disp_set_rect(int x, int y, int xres, int yres)
{
if (!disp_initialized)
return;
DISP_SET_RECT(y, y + yres - 1, x, x + xres - 1);
DISP_CMD_OUT(DISP_CMD_RAMWR);
}
static void epsonQcif_disp_set_display_area(word start_row, word end_row)
{
if (!disp_initialized)
return;
if ((start_row == disp_area_start_row)
&& (end_row == disp_area_end_row))
return;
disp_area_start_row = start_row;
disp_area_end_row = end_row;
/* Range checking
*/
if (end_row >= QCIF_HEIGHT)
end_row = QCIF_HEIGHT - 1;
if (start_row > end_row)
start_row = end_row;
/* When display is not the full screen, gray scale is set to
** 2; otherwise it is set to 64.
*/
if ((start_row == 0) && (end_row == (QCIF_HEIGHT - 1))) {
/* The whole screen */
DISP_CMD_OUT(DISP_CMD_PTLOUT);
WAIT_SEC(10000);
DISP_CMD_OUT(DISP_CMD_DISOFF);
WAIT_SEC(100000);
DISP_CMD_OUT(DISP_CMD_GSSET);
DISP_DATA_OUT(DISP_GS_64);
WAIT_SEC(100000);
DISP_CMD_OUT(DISP_CMD_DISON);
} else {
/* partial screen */
DISP_CMD_OUT(DISP_CMD_PTLIN);
DISP_DATA_OUT(start_row);
DISP_DATA_OUT(start_row >> 8);
DISP_DATA_OUT(end_row);
DISP_DATA_OUT(end_row >> 8);
DISP_CMD_OUT(DISP_CMD_GSSET);
DISP_DATA_OUT(DISP_GS_2);
}
}
static int epsonQcif_disp_off(struct platform_device *pdev)
{
if (!disp_initialized)
epsonQcif_disp_init(pdev);
if (display_on) {
DISP_CMD_OUT(DISP_CMD_DISOFF);
DISP_CMD_OUT(DISP_CMD_SLPIN);
display_on = FALSE;
}
return 0;
}
static int epsonQcif_disp_on(struct platform_device *pdev)
{
if (!disp_initialized)
epsonQcif_disp_init(pdev);
if (!display_on) {
DISP_CMD_OUT(DISP_CMD_SLPOUT);
WAIT_SEC(40000);
DISP_CMD_OUT(DISP_CMD_DISON);
epsonQcif_disp_set_contrast(disp_contrast);
display_on = TRUE;
}
return 0;
}
static void epsonQcif_disp_set_contrast(word contrast)
{
if (!disp_initialized)
return;
/* Initialize power IC, d'24 */
DISP_CMD_OUT(DISP_CMD_VOLCTL);
DISP_DATA_OUT(DISP_VOLCTL_TONE);
WAIT_SEC(40000);
/* Set electronic volume, d'xx */
DISP_CMD_OUT(DISP_CMD_VOLCTL);
if (contrast > 127)
contrast = 127;
DISP_DATA_OUT(contrast); /* value from 0 to 127 */
disp_contrast = (byte) contrast;
} /* End disp_set_contrast */
static void epsonQcif_disp_clear_screen_area(
word start_row, word end_row, word start_column, word end_column) {
int32 i;
/* Clear the display screen */
DISP_SET_RECT(start_row, end_row, start_column, end_column);
DISP_CMD_OUT(DISP_CMD_RAMWR);
i = (end_row - start_row + 1) * (end_column - start_column + 1);
for (; i > 0; i--)
DISP_DATA_OUT(0xffff);
}
static int __init epsonQcif_probe(struct platform_device *pdev)
{
msm_fb_add_device(pdev);
return 0;
}
static struct platform_driver this_driver = {
.probe = epsonQcif_probe,
.driver = {
.name = "ebi2_epson_qcif",
},
};
static struct msm_fb_panel_data epsonQcif_panel_data = {
.on = epsonQcif_disp_on,
.off = epsonQcif_disp_off,
.set_rect = epsonQcif_disp_set_rect,
};
static struct platform_device this_device = {
.name = "ebi2_epson_qcif",
.id = 0,
.dev = {
.platform_data = &epsonQcif_panel_data,
}
};
static int __init epsonQcif_init(void)
{
int ret;
struct msm_panel_info *pinfo;
ret = platform_driver_register(&this_driver);
if (!ret) {
pinfo = &epsonQcif_panel_data.panel_info;
pinfo->xres = QCIF_WIDTH;
pinfo->yres = QCIF_HEIGHT;
pinfo->type = EBI2_PANEL;
pinfo->pdest = DISPLAY_2;
pinfo->wait_cycle = 0x808000;
pinfo->bpp = 16;
pinfo->fb_num = 2;
pinfo->lcd.vsync_enable = FALSE;
ret = platform_device_register(&this_device);
if (ret)
platform_driver_unregister(&this_driver);
}
return ret;
}
module_init(epsonQcif_init);