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Diffstat (limited to 'drivers/video/wmt/devices/lcd-b079xan01.c')
-rw-r--r--[-rwxr-xr-x]drivers/video/wmt/devices/lcd-b079xan01.c378
1 files changed, 240 insertions, 138 deletions
diff --git a/drivers/video/wmt/devices/lcd-b079xan01.c b/drivers/video/wmt/devices/lcd-b079xan01.c
index 05a6e957..54e5921e 100755..100644
--- a/drivers/video/wmt/devices/lcd-b079xan01.c
+++ b/drivers/video/wmt/devices/lcd-b079xan01.c
@@ -1,82 +1,209 @@
-/*++
- * linux/drivers/video/wmt/lcd-b079xan01.c
- * WonderMedia video post processor (VPP) driver
- *
- * Copyright c 2014 WonderMedia Technologies, Inc.
- *
- * 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, see <http://www.gnu.org/licenses/>.
- *
- * WonderMedia Technologies, Inc.
- * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
---*/
-
-#include <linux/delay.h>
+/*++
+ linux/drivers/video/wmt/devices/lcd-b079xan01.c
-#include <mach/hardware.h>
+ Copyright (c) 2013 WonderMedia Technologies, Inc.
+
+ 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, see <http://www.gnu.org/licenses/>.
+
+ WonderMedia Technologies, Inc.
+ 10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C.
+--*/
+
+#include <linux/delay.h>
#include <linux/spi/spi.h>
+#include <mach/hardware.h>
#include <mach/wmt-spi.h>
-
#include <linux/gpio.h>
#include <mach/wmt_iomux.h>
-
#include "../lcd.h"
#define DRIVERNAME "ssd2828"
+#define DELAY_MASK 0xff000000
+
+#undef pr_err
+#undef pr_info
+#undef pr_warning
+#define pr_err(fmt, args...) printk("[" DRIVERNAME "] " fmt, ##args)
+#define pr_info(fmt, args...) printk("[" DRIVERNAME "] " fmt, ##args)
+#define pr_warning(fmt, args...) printk("[" DRIVERNAME "] " fmt, ##args)
+
+extern void lcd_power_on(bool on);
+
+struct ssd2828_chip {
+ struct spi_device *spi;
+ int id;
+ int gpio_reset;
+};
+
+static int wmt_lcd_panel_id(void)
+{
+ char buf[96];
+ int len = sizeof(buf);
+ int type, id = 0;
+
+ if (wmt_getsyspara("wmt.display.param", buf, &len)) {
+ return -ENODEV;
+ }
-static struct lcd_parm_t lcd_b079xan01_parm = {
- .bits_per_pixel = 24,
- .capability = 0,
+ sscanf(buf, "%d:%d", &type, &id);
+ return id;
+}
+
+// B079XAN01
+
+static const uint32_t b079xan01_init_sequence[] = {
+ 0x7000B1, 0x723240, //VSA=50, HAS=64
+ 0x7000B2, 0x725078, //VBP=30+50, HBP=56+64
+ 0x7000B3, 0x72243C, //VFP=36, HFP=60
+ 0x7000B4, 0x720300, //HACT=768
+ 0x7000B5, 0x720400, //VACT=1024
+ 0x7000B6, 0x72000b, //burst mode, 24bpp loosely packed
+ 0x7000DE, 0x720003, //no of lane=4
+ 0x7000D6, 0x720005, //RGB order and packet number in blanking period
+ 0x7000B9, 0x720000, //disable PLL
+
+ //lane speed=576 (24MHz * 24 = 576)
+ //may modify according to requirement, 500Mbps to 560Mbps
+ //LP clock : 576 / 9 / 8 = 8 MHz
+ 0x7000BA, 0x728018,
+ 0x7000BB, 0x720008,
+
+ 0x7000B9, 0x720001, //enable PPL
+ 0x7000C4, 0x720001, //enable BTA
+ 0x7000B7, 0x720342, //enter LP mode
+ 0x7000B8, 0x720000, //VC
+ 0x7000BC, 0x720000, //set packet size
+
+ 0x700011, //sleep out cmd
+
+ DELAY_MASK + 200,
+
+ 0x700029, //display on
+
+ DELAY_MASK + 200,
+
+ 0x7000B7, 0x72030b, //video mode on
+};
+
+static lcd_parm_t lcd_b079xan01_parm = {
+ .bits_per_pixel = 24,
+ .capability = 0,
.vmode = {
- .name = "B079XAN01",
- .refresh = 60,
- .xres = 768,
- .yres = 1024,
- .pixclock = KHZ2PICOS(64800),
- .left_margin = 56,
- .right_margin = 60,
- .upper_margin = 30,
- .lower_margin = 36,
- .hsync_len = 64,
- .vsync_len = 50,
- .sync = 0, /* FB_SYNC_VERT_HIGH_ACT | FB_SYNC_HOR_HIGH_ACT, */
- .vmode = 0,
- .flag = 0,
+ .name = "B079XAN01",
+ .refresh = 60,
+ .xres = 768,
+ .yres = 1024,
+ .pixclock = KHZ2PICOS(64800),
+ .left_margin = 56,
+ .right_margin = 60,
+ .upper_margin = 30,
+ .lower_margin = 36,
+ .hsync_len = 64,
+ .vsync_len = 50,
+ .sync = 0,
+ .vmode = 0,
+ .flag = 0,
},
- .width = 120,
- .height = 160,
-#if 0
- .initial = lcd_power_on,
- .uninitial = lcd_power_off,
-#endif
};
-static struct lcd_parm_t *lcd_b079xan01_get_parm(int arg)
+static lcd_parm_t *lcd_b079xan01_get_parm(int arg)
{
return &lcd_b079xan01_parm;
}
-static int lcd_b079xan01_init(void)
-{
- return lcd_panel_register(LCD_B079XAN01,
- (void *) lcd_b079xan01_get_parm);
-}
+// BP080WX7
-struct ssd2828_chip {
- struct spi_device *spi;
- int gpio_reset;
+static const uint32_t bp080wx7_init_sequence[] = {
+ 0x7000B1, 0x720202, // VSA=02 , HSA=02
+ 0x7000B2, 0x720828, // VBP+VSA=8, HBP+HSA=40
+ 0x7000B3, 0x72040A, // VFP=04 , HFP=10
+ 0x7000B4, 0x720500, // HACT=1280
+ 0x7000B5, 0x720320, // vACT=800
+ 0x7000B6, 0x720007, // Non burst mode with sync event 24bpp
+
+ //DELAY_MASK + 10,
+
+ 0x7000DE, 0x720003, // 4lanes
+ 0x7000D6, 0x720005, // BGR
+ 0x7000B9, 0x720000,
+
+ //DELAY_MASK + 10,
+
+ 0x7000BA, 0x72C012, // PLL=24*16 = 384MHz
+ 0x7000BB, 0x720008, // LP CLK=8.3MHz
+ 0x7000B9, 0x720001,
+
+ //DELAY_MASK + 200,
+
+ 0x7000B8, 0x720000, // Virtual Channel 0
+ 0x7000B7, 0x720342, // LP Mode
+
+ //DELAY_MASK + 10,
+
+ 0x7000BC, 0x720000,
+ 0x700011, //sleep out
+
+ DELAY_MASK + 200,
+
+ 0x7000BC, 0x720000,
+ 0x700029, //display on
+
+ //DELAY_MASK + 50,
+
+ 0x7000B7, 0x72034B, //Video Mode
+
+ DELAY_MASK + 200,
+
+ 0x7000BC, 0x720000,
+ 0x700029, //display on
};
+//Timing parameter for 3.0" QVGA LCD
+#define VBPD (6)
+#define VFPD (4)
+#define VSPW (2)
+
+#define HBPD (38)
+#define HFPD (10)
+#define HSPW (2)
+
+// setenv wmt.display.tmr 64800:0:8:47:1280:45:4:16:800:16
+
+static lcd_parm_t lcd_bp080wx7_parm = {
+ .bits_per_pixel = 24,
+ .capability = 0,
+ .vmode = {
+ .name = "BP080WX7",
+ .refresh = 60,
+ .xres = 1280,
+ .yres = 800,
+ .pixclock = KHZ2PICOS(64800),
+ .left_margin = HBPD,
+ .right_margin = HFPD,
+ .upper_margin = VBPD,
+ .lower_margin = VFPD,
+ .hsync_len = HSPW,
+ .vsync_len = VSPW,
+ .sync = 0,
+ .vmode = 0,
+ .flag = 0,
+ },
+};
+
+static lcd_parm_t *lcd_bp080wx7_get_parm(int arg)
+{
+ return &lcd_bp080wx7_parm;
+}
+
+// SSD2828 api
static int ssd2828_read(struct spi_device *spi, uint8_t reg)
{
int ret;
@@ -88,13 +215,12 @@ static int ssd2828_read(struct spi_device *spi, uint8_t reg)
ret = spi_write(spi, buf1, 3);
if (ret) {
pr_err("spi_write ret=%d\n", ret);
- return -EIO;
+ return ret;
}
ret = spi_w8r16(spi, buf2[0]);
if (ret < 0) {
pr_err("spi_write ret=%d\n", ret);
- return ret;
}
return ret;
@@ -142,35 +268,7 @@ static inline int spi_write_24bit(struct spi_device *spi, uint32_t data)
return ret;
}
-static const uint32_t ssd2828_init_sequence[] = {
- 0x7000B1, 0x723240, /* VSA=50, HAS=64 */
- 0x7000B2, 0x725078, /* VBP=30+50, HBP=56+64 */
- 0x7000B3, 0x72243C, /* VFP=36, HFP=60 */
- 0x7000B4, 0x720300, /* HACT=768 */
- 0x7000B5, 0x720400, /* VACT=1024 */
- 0x7000B6, 0x72000b, /* burst mode, 24bpp loosely packed */
- 0x7000DE, 0x720003, /* no of lane=4 */
- 0x7000D6, 0x720005, /* RGB order and packet number in blanking period */
- 0x7000B9, 0x720000, /* disable PLL */
-
- /* lane speed=576 (24MHz * 24 = 576) */
- /* may modify according to requirement, 500Mbps to 560Mbps */
- /* LP clock : 576 / 9 / 8 = 8 MHz */
- 0x7000BA, 0x728018,
- 0x7000BB, 0x720008,
-
- 0x7000B9, 0x720001, /* enable PPL */
- 0x7000C4, 0x720001, /* enable BTA */
- 0x7000B7, 0x720342, /* enter LP mode */
- 0x7000B8, 0x720000, /* VC */
- 0x7000BC, 0x720000, /* set packet size */
-
- 0x700011, 0xff0000 + 200, /* sleep out cmd */
- 0x700029, 0xff0000 + 200, /* display on */
- 0x7000B7, 0x72030b, /* video mode on */
-};
-
-static int ssd2828_hw_reset(struct ssd2828_chip *chip)
+static inline void ssd2828_hw_reset(struct ssd2828_chip *chip)
{
lcd_power_on(1);
msleep(10);
@@ -178,16 +276,16 @@ static int ssd2828_hw_reset(struct ssd2828_chip *chip)
gpio_direction_output(chip->gpio_reset, 1);
msleep(10);
gpio_direction_output(chip->gpio_reset, 0);
- msleep(20);
+ msleep(200);
gpio_direction_output(chip->gpio_reset, 1);
- msleep(20);
- return 0;
+ msleep(200);
}
static int ssd2828_hw_init(struct ssd2828_chip *chip)
{
- int ret = 0;
- int i;
+ const uint32_t *init_sequence;
+ size_t n;
+ int i, ret = 0;
ssd2828_hw_reset(chip);
@@ -197,14 +295,27 @@ static int ssd2828_hw_init(struct ssd2828_chip *chip)
return -ENODEV;
}
- for (i = 0; i < ARRAY_SIZE(ssd2828_init_sequence); i++) {
- if (ssd2828_init_sequence[i] & 0xff000000) {
- msleep(ssd2828_init_sequence[i] & 0xff);
- continue;
+ switch (chip->id) {
+ case LCD_B079XAN01:
+ init_sequence = b079xan01_init_sequence;
+ n = ARRAY_SIZE(b079xan01_init_sequence);
+ break;
+ case LCD_BP080WX7:
+ init_sequence = bp080wx7_init_sequence;
+ n = ARRAY_SIZE(bp080wx7_init_sequence);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ for (i = 0; i < n; i++) {
+ if ((init_sequence[i] & DELAY_MASK) == DELAY_MASK) {
+ msleep(init_sequence[i] & 0xff);
+ } else {
+ ret = spi_write_24bit(chip->spi, init_sequence[i]);
+ if (ret)
+ break;
}
- ret = spi_write_24bit(chip->spi, ssd2828_init_sequence[i]);
- if (ret)
- break;
}
return ret;
@@ -232,7 +343,7 @@ static ssize_t option_port_testmode_show(struct device *dev,
s += sprintf(s, "=========\n");
out:
- return s - buf;
+ return (s - buf);
}
static ssize_t option_port_testmode_store(struct device *dev,
@@ -246,7 +357,7 @@ static DEVICE_ATTR(testmode, S_IRUGO,
option_port_testmode_show,
option_port_testmode_store);
-static int __devinit ssd2828_probe(struct spi_device *spi)
+static int __devinit ssd2828_spi_probe(struct spi_device *spi)
{
struct ssd2828_chip *chip;
int gpio = WMT_PIN_GP0_GPIO0;
@@ -269,12 +380,14 @@ static int __devinit ssd2828_probe(struct spi_device *spi)
return -ENOMEM;
chip->spi = spi;
+ chip->id = wmt_lcd_panel_id();
chip->gpio_reset = gpio;
spi_set_drvdata(spi, chip);
ret = sysfs_create_file(&spi->dev.kobj, &dev_attr_testmode.attr);
- if (unlikely(ret))
+ if (unlikely(ret)) {
pr_err("ssd2828 sysfs_create_file failed\n");
+ }
return ret;
}
@@ -287,15 +400,11 @@ static int ssd2828_spi_resume(struct spi_device *spi)
static struct spi_driver ssd2828_driver = {
.driver = {
- .name = DRIVERNAME,
- .owner = THIS_MODULE,
+ .name = DRIVERNAME,
+ .owner = THIS_MODULE,
},
- .probe = ssd2828_probe,
- .resume = ssd2828_spi_resume,
-#if 0
- .remove = __devexit_p(ssd2828_remove),
- .shutdown = ssd2828_shutdown,
-#endif
+ .probe = ssd2828_spi_probe,
+ .resume = ssd2828_spi_resume,
};
static struct spi_board_info ssd2828_spi_info[] __initdata = {
@@ -309,25 +418,16 @@ static struct spi_board_info ssd2828_spi_info[] __initdata = {
},
};
-static int wmt_lcd_panel(void)
-{
- char buf[96];
- int len = sizeof(buf);
- int type, id = 0;
-
- if (wmt_getsyspara("wmt.display.param", buf, &len))
- return -ENODEV;
-
- sscanf(buf, "%d:%d", &type, &id);
- return id;
-}
-
-static int __init b079xan01_init(void)
+static int __init ssd2828_init(void)
{
int ret;
- if (wmt_lcd_panel() != LCD_B079XAN01) {
- pr_err("LCD B079XAN01 not found\n");
+ switch (wmt_lcd_panel_id()) {
+ case LCD_B079XAN01:
+ case LCD_BP080WX7:
+ break;
+ default:
+ pr_warning("lcd for ssd2828 not found\n");
return -EINVAL;
}
@@ -341,23 +441,25 @@ static int __init b079xan01_init(void)
ret = spi_register_driver(&ssd2828_driver);
if (ret) {
pr_err("spi_register_driver failed\n");
- return -EIO;
+ return ret;
}
- if (lcd_b079xan01_init()) {
- spi_unregister_driver(&ssd2828_driver);
- return -ENODEV;
- }
+ lcd_panel_register(LCD_B079XAN01, (void *)lcd_b079xan01_get_parm);
+ lcd_panel_register(LCD_BP080WX7, (void *)lcd_bp080wx7_get_parm);
pr_info("spi %s register success\n", DRIVERNAME);
-
return 0;
}
-static void b079xan01_exit(void)
+static void ssd2828_exit(void)
{
spi_unregister_driver(&ssd2828_driver);
}
-module_init(b079xan01_init);
-module_exit(b079xan01_exit);
+module_init(ssd2828_init);
+module_exit(ssd2828_exit);
+
+MODULE_AUTHOR("Sam Mei");
+MODULE_DESCRIPTION("WonderMedia Mipi LCD Driver");
+MODULE_LICENSE("GPL");
+
generated by cgit (git 2.34.1) at 2024-12-22 09:49:33 +0000