GCW Zero
更換螢幕(3.5吋 IPS HX8347-A01 解析度320x240)
由於GCW0掌機使用的螢幕並非IPS規格，因此，司徒致力找尋可以替換的屏幕，最後在淘寶網找到一片3.5吋IPS屏，解析度也跟原本GCW0一樣，替換過程如下說明。
對應腳位：
| GCW0 | HX8347-A01 |
|---|---|
| LED-K | LED-K(K1~K8) |
| LED-A | LED-A |
| RESET | NRESET |
| CS | NCS |
| SCK | DNC_SCL |
| SDI | SDI |
| B2 | B0 |
| B3 | B1 |
| B4 | B2 |
| B5 | B3 |
| B6 | B4 |
| B7 | B5 |
| G2 | G0 |
| G3 | G1 |
| G4 | G2 |
| G5 | G3 |
| G6 | G4 |
| G7 | G5 |
| R2 | R0 |
| R3 | R1 |
| R4 | R2 |
| R5 | R3 |
| R6 | R4 |
| R7 | R5 |
| HSYNC | HSYNC |
| VSYNC | VSYNC |
| DCLK | PCLK |
| VDD | IOVCC, VCI, BS0. BS1, BS2, NRD, NWR |
| ENB | DE |
| GND | GND |
drivers/video/displays/Kconfig
config PANEL_HX8347A01
# TODO: Switch to tristate once the driver is a module.
bool "HX8347A01 based panel"
help
Select this if you are using a HX8347A01 LCD driver IC.
drivers/video/displays/Makefile
obj-$(CONFIG_PANEL_HX8347A01) += panel-hx8347a01.o
drivers/video/displays/panel-hx8347a01.c
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/gfp.h>
#include <linux/gpio.h>
#include <video/jzpanel.h>
#include <video/panel-hx8347a01.h>
struct hx8347a01 {
struct hx8347a01_platform_data *pdata;
};
static void hx8347a01_send_spi(struct hx8347a01_platform_data *pdata, u8 data)
{
int bit;
for(bit=7; bit>=0; bit--){
gpio_direction_output(pdata->gpio_clock, 0);
gpio_direction_output(pdata->gpio_data, (data >> bit) & 1);
udelay(10);
gpio_direction_output(pdata->gpio_clock, 1);
udelay(10);
}
}
static void hx8347a01_send_cmd(struct hx8347a01_platform_data *pdata, u8 data)
{
gpio_direction_output(pdata->gpio_enable, 0);
hx8347a01_send_spi(pdata, 0x74);
hx8347a01_send_spi(pdata, data >> 8);
hx8347a01_send_spi(pdata, data);
gpio_direction_output(pdata->gpio_enable, 1);
}
static void hx8347a01_send_data(struct hx8347a01_platform_data *pdata, u8 data)
{
gpio_direction_output(pdata->gpio_enable, 0);
hx8347a01_send_spi(pdata, 0x76);
hx8347a01_send_spi(pdata, data >> 8);
hx8347a01_send_spi(pdata, data);
gpio_direction_output(pdata->gpio_enable, 1);
}
static int hx8347a01_panel_init(void **out_panel, struct device *dev, void *panel_pdata)
{
struct hx8347a01_platform_data *pdata = panel_pdata;
struct hx8347a01 *panel;
int ret;
printk("%s++\n", __func__);
panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
if (!panel) {
dev_err(dev, "Failed to alloc panel data\n");
return -ENOMEM;
}
panel->pdata = pdata;
*out_panel = panel;
/* Reserve GPIO pins. */
ret = devm_gpio_request(dev, pdata->gpio_reset, "LCD panel reset");
if (ret) {
dev_err(dev,
"Failed to request LCD panel reset pin: %d\n", ret);
return ret;
}
ret = devm_gpio_request(dev, pdata->gpio_clock, "LCD 3-wire clock");
if (ret) {
dev_err(dev,
"Failed to request LCD panel 3-wire clock pin: %d\n",
ret);
return ret;
}
ret = devm_gpio_request(dev, pdata->gpio_enable, "LCD 3-wire enable");
if (ret) {
dev_err(dev,
"Failed to request LCD panel 3-wire enable pin: %d\n",
ret);
return ret;
}
ret = devm_gpio_request(dev, pdata->gpio_data, "LCD 3-wire data");
if (ret) {
dev_err(dev,
"Failed to request LCD panel 3-wire data pin: %d\n",
ret);
return ret;
}
/* Set initial GPIO pin directions and value. */
gpio_direction_output(pdata->gpio_clock, 1);
gpio_direction_output(pdata->gpio_enable, 1);
gpio_direction_output(pdata->gpio_data, 0);
printk("%s--\n", __func__);
return 0;
}
static void hx8347a01_panel_exit(void *panel)
{
}
static void hx8347a01_panel_enable(void *panel)
{
struct hx8347a01_platform_data *pdata = ((struct hx8347a01 *)panel)->pdata;
printk("%s++\n", __func__);
// Reset LCD panel
gpio_direction_output(pdata->gpio_reset, 0);
mdelay(50);
gpio_direction_output(pdata->gpio_reset, 1);
mdelay(50);
// GAMMA SETTING
hx8347a01_send_cmd(pdata, 0x0046);hx8347a01_send_data(pdata, 0x0044);
hx8347a01_send_cmd(pdata, 0x0047);hx8347a01_send_data(pdata, 0x0044);
hx8347a01_send_cmd(pdata, 0x0048);hx8347a01_send_data(pdata, 0x0045);
hx8347a01_send_cmd(pdata, 0x0049);hx8347a01_send_data(pdata, 0x0025);
hx8347a01_send_cmd(pdata, 0x004A);hx8347a01_send_data(pdata, 0x0023);
hx8347a01_send_cmd(pdata, 0x004B);hx8347a01_send_data(pdata, 0x0045);
hx8347a01_send_cmd(pdata, 0x004C);hx8347a01_send_data(pdata, 0x0025);
hx8347a01_send_cmd(pdata, 0x004D);hx8347a01_send_data(pdata, 0x0023);
hx8347a01_send_cmd(pdata, 0x004E);hx8347a01_send_data(pdata, 0x0050);
hx8347a01_send_cmd(pdata, 0x004F);hx8347a01_send_data(pdata, 0x0000);
hx8347a01_send_cmd(pdata, 0x0050);hx8347a01_send_data(pdata, 0x0050);
hx8347a01_send_cmd(pdata, 0x0051);hx8347a01_send_data(pdata, 0x0000);
// 240x320 window setting
hx8347a01_send_cmd(pdata, 0x0002);hx8347a01_send_data(pdata, 0x0000); // Column address start2
hx8347a01_send_cmd(pdata, 0x0003);hx8347a01_send_data(pdata, 0x0000); // Column address start1
hx8347a01_send_cmd(pdata, 0x0004);hx8347a01_send_data(pdata, 0x0000); // Column address end2
hx8347a01_send_cmd(pdata, 0x0005);hx8347a01_send_data(pdata, 0x00EF); // Column address end1
hx8347a01_send_cmd(pdata, 0x0006);hx8347a01_send_data(pdata, 0x0000); // Row address start2
hx8347a01_send_cmd(pdata, 0x0007);hx8347a01_send_data(pdata, 0x0000); // Row address start1
hx8347a01_send_cmd(pdata, 0x0008);hx8347a01_send_data(pdata, 0x0001); // Row address end2
hx8347a01_send_cmd(pdata, 0x0009);hx8347a01_send_data(pdata, 0x003F); // Row address end1
// Display Setting
hx8347a01_send_cmd(pdata, 0x0016);hx8347a01_send_data(pdata, 0x0008);
hx8347a01_send_cmd(pdata, 0x0038);hx8347a01_send_data(pdata, 0x0000); // RGB_EN=0
hx8347a01_send_cmd(pdata, 0x0023);hx8347a01_send_data(pdata, 0x0095); // N_DC=1001 0101
hx8347a01_send_cmd(pdata, 0x0024);hx8347a01_send_data(pdata, 0x0095); // PI_DC=1001 0101
hx8347a01_send_cmd(pdata, 0x0025);hx8347a01_send_data(pdata, 0x00FF); // I_DC=1111 1111
hx8347a01_send_cmd(pdata, 0x0027);hx8347a01_send_data(pdata, 0x0002); // N_BP=0000 0010
hx8347a01_send_cmd(pdata, 0x0028);hx8347a01_send_data(pdata, 0x0002); // N_FP=0000 0010
hx8347a01_send_cmd(pdata, 0x0029);hx8347a01_send_data(pdata, 0x0002); // PI_BP=0000 0010
hx8347a01_send_cmd(pdata, 0x002A);hx8347a01_send_data(pdata, 0x0002); // PI_FP=0000 0010
hx8347a01_send_cmd(pdata, 0x002C);hx8347a01_send_data(pdata, 0x0002); // I_BP=0000 0010
hx8347a01_send_cmd(pdata, 0x002D);hx8347a01_send_data(pdata, 0x0002); // I_FP=0000 0010
hx8347a01_send_cmd(pdata, 0x003A);hx8347a01_send_data(pdata, 0x00A1); // N_RTN=0000, N_NW=001
hx8347a01_send_cmd(pdata, 0x003B);hx8347a01_send_data(pdata, 0x00A1); // PI_RTN=0000, PI_NW=000
hx8347a01_send_cmd(pdata, 0x003C);hx8347a01_send_data(pdata, 0x00A0); // I_RTN=1111, I_NW=000
hx8347a01_send_cmd(pdata, 0x003D);hx8347a01_send_data(pdata, 0x0000); // DIV=00
mdelay(20);
// Power Supply Setting
hx8347a01_send_cmd(pdata, 0x0019);hx8347a01_send_data(pdata, 0x0049); // CADJ=0100, CUADJ=100(FR:60Hz, OSD_EN=1
hx8347a01_send_cmd(pdata, 0x0093);hx8347a01_send_data(pdata, 0x000F); // RADJ=1111, 100%
mdelay(10);
hx8347a01_send_cmd(pdata, 0x0020);hx8347a01_send_data(pdata, 0x0010); // BT=0100
hx8347a01_send_cmd(pdata, 0x001D);hx8347a01_send_data(pdata, 0x0001); // VC1=111
hx8347a01_send_cmd(pdata, 0x001E);hx8347a01_send_data(pdata, 0x0006); // VC3=000
hx8347a01_send_cmd(pdata, 0x001F);hx8347a01_send_data(pdata, 0x000C); // VRH=0100
// VCOM Setting for CMO 3.2 Panel
hx8347a01_send_cmd(pdata, 0x0044);hx8347a01_send_data(pdata, 0x004C); // VCM=100 1101
hx8347a01_send_cmd(pdata, 0x0045);hx8347a01_send_data(pdata, 0x0010); // VDV=1 0001
hx8347a01_send_cmd(pdata, 0x001C);hx8347a01_send_data(pdata, 0x0004); // AP=100
mdelay(20);
hx8347a01_send_cmd(pdata, 0x001B);hx8347a01_send_data(pdata, 0x0008); // GASENB=0, PON=1, DK=1, XDK=0, VLCD_TRI=0, STB=0
mdelay(40);
hx8347a01_send_cmd(pdata, 0x001B);hx8347a01_send_data(pdata, 0x0014); // GASENB=0, PON=1, DK=0, XDK=0, VLCD_TRI=0, STB=0
mdelay(40);
hx8347a01_send_cmd(pdata, 0x0043);hx8347a01_send_data(pdata, 0x0080); // Set VCOMG=1
mdelay(100);
// Display ON Setting
hx8347a01_send_cmd(pdata, 0x0090);hx8347a01_send_data(pdata, 0x00F0); // SAP=0111 1111
hx8347a01_send_cmd(pdata, 0x0026);hx8347a01_send_data(pdata, 0x0024); // GON=0, DTE=0, D=01
mdelay(40);
hx8347a01_send_cmd(pdata, 0x0026);hx8347a01_send_data(pdata, 0x0024); // GON=1, DTE=0, D=01
hx8347a01_send_cmd(pdata, 0x0026);hx8347a01_send_data(pdata, 0x002C); // GON=1, DTE=0, D=11
mdelay(40);
hx8347a01_send_cmd(pdata, 0x0026);hx8347a01_send_data(pdata, 0x003C); // GON=1, DTE=1, D=11
// Cycle Control
hx8347a01_send_cmd(pdata, 0x0035);hx8347a01_send_data(pdata, 0x0038); // EQS=38h
hx8347a01_send_cmd(pdata, 0x0036);hx8347a01_send_data(pdata, 0x0078); // EQP=78h
hx8347a01_send_cmd(pdata, 0x003E);hx8347a01_send_data(pdata, 0x0038); // SON=38h
hx8347a01_send_cmd(pdata, 0x0040);hx8347a01_send_data(pdata, 0x000F); // GDON=0Fh
// Display Control
hx8347a01_send_cmd(pdata, 0x0041);hx8347a01_send_data(pdata, 0x00F0); // GDOFF
// Internal register setting
hx8347a01_send_cmd(pdata, 0x0095);hx8347a01_send_data(pdata, 0x0001); // Set Display clock and Pumping clock to synchronize
// RGB Interface Control,RGB polarity(HS,VS,DE,DOTCLK)
hx8347a01_send_cmd(pdata, 0x0038);hx8347a01_send_data(pdata, 0x0010); // RGB Interface ON
// Internal Use
hx8347a01_send_cmd(pdata, 0x0070);hx8347a01_send_data(pdata, 0x0026); // Internal Use GS SS
printk("%s--\n", __func__);
}
static void hx8347a01_panel_disable(void *panel)
{
struct hx8347a01_platform_data *pdata = ((struct hx8347a01 *)panel)->pdata;
printk("%s++\n", __func__);
hx8347a01_send_cmd(pdata, 0x0026);hx8347a01_send_data(pdata, 0x0000);
printk("%s--\n", __func__);
}
struct panel_ops hx8347a01_panel_ops = {
.init = hx8347a01_panel_init,
.exit = hx8347a01_panel_exit,
.enable = hx8347a01_panel_enable,
.disable = hx8347a01_panel_disable,
};
drivers/video/jz4770_fb.c
/*
* Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
* JZ4740 SoC LCD framebuffer driver
*
* 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.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/console.h>
#include <linux/fb.h>
#include <linux/dma-mapping.h>
#include <asm/mach-jz4740/jz4740_fb.h>
#include <asm/mach-jz4740/gpio.h>
#define JZ_REG_LCD_CFG 0x00
#define JZ_REG_LCD_VSYNC 0x04
#define JZ_REG_LCD_HSYNC 0x08
#define JZ_REG_LCD_VAT 0x0C
#define JZ_REG_LCD_DAH 0x10
#define JZ_REG_LCD_DAV 0x14
#define JZ_REG_LCD_PS 0x18
#define JZ_REG_LCD_CLS 0x1C
#define JZ_REG_LCD_SPL 0x20
#define JZ_REG_LCD_REV 0x24
#define JZ_REG_LCD_CTRL 0x30
#define JZ_REG_LCD_STATE 0x34
#define JZ_REG_LCD_IID 0x38
#define JZ_REG_LCD_DA0 0x40
#define JZ_REG_LCD_SA0 0x44
#define JZ_REG_LCD_FID0 0x48
#define JZ_REG_LCD_CMD0 0x4C
#define JZ_REG_LCD_DA1 0x50
#define JZ_REG_LCD_SA1 0x54
#define JZ_REG_LCD_FID1 0x58
#define JZ_REG_LCD_CMD1 0x5C
#define JZ_LCD_CFG_SLCD BIT(31)
#define JZ_LCD_CFG_PS_DISABLE BIT(23)
#define JZ_LCD_CFG_CLS_DISABLE BIT(22)
#define JZ_LCD_CFG_SPL_DISABLE BIT(21)
#define JZ_LCD_CFG_REV_DISABLE BIT(20)
#define JZ_LCD_CFG_HSYNCM BIT(19)
#define JZ_LCD_CFG_PCLKM BIT(18)
#define JZ_LCD_CFG_INV BIT(17)
#define JZ_LCD_CFG_SYNC_DIR BIT(16)
#define JZ_LCD_CFG_PS_POLARITY BIT(15)
#define JZ_LCD_CFG_CLS_POLARITY BIT(14)
#define JZ_LCD_CFG_SPL_POLARITY BIT(13)
#define JZ_LCD_CFG_REV_POLARITY BIT(12)
#define JZ_LCD_CFG_HSYNC_ACTIVE_LOW BIT(11)
#define JZ_LCD_CFG_PCLK_FALLING_EDGE BIT(10)
#define JZ_LCD_CFG_DE_ACTIVE_LOW BIT(9)
#define JZ_LCD_CFG_VSYNC_ACTIVE_LOW BIT(8)
#define JZ_LCD_CFG_18_BIT BIT(7)
#define JZ_LCD_CFG_PDW (BIT(5) | BIT(4))
#define JZ_LCD_CFG_MODE_MASK 0xf
#define JZ_LCD_CTRL_BURST_4 (0x0 << 28)
#define JZ_LCD_CTRL_BURST_8 (0x1 << 28)
#define JZ_LCD_CTRL_BURST_16 (0x2 << 28)
#define JZ_LCD_CTRL_RGB555 BIT(27)
#define JZ_LCD_CTRL_OFUP BIT(26)
#define JZ_LCD_CTRL_FRC_GRAYSCALE_16 (0x0 << 24)
#define JZ_LCD_CTRL_FRC_GRAYSCALE_4 (0x1 << 24)
#define JZ_LCD_CTRL_FRC_GRAYSCALE_2 (0x2 << 24)
#define JZ_LCD_CTRL_PDD_MASK (0xff << 16)
#define JZ_LCD_CTRL_EOF_IRQ BIT(13)
#define JZ_LCD_CTRL_SOF_IRQ BIT(12)
#define JZ_LCD_CTRL_OFU_IRQ BIT(11)
#define JZ_LCD_CTRL_IFU0_IRQ BIT(10)
#define JZ_LCD_CTRL_IFU1_IRQ BIT(9)
#define JZ_LCD_CTRL_DD_IRQ BIT(8)
#define JZ_LCD_CTRL_QDD_IRQ BIT(7)
#define JZ_LCD_CTRL_REVERSE_ENDIAN BIT(6)
#define JZ_LCD_CTRL_LSB_FISRT BIT(5)
#define JZ_LCD_CTRL_DISABLE BIT(4)
#define JZ_LCD_CTRL_ENABLE BIT(3)
#define JZ_LCD_CTRL_BPP_1 0x0
#define JZ_LCD_CTRL_BPP_2 0x1
#define JZ_LCD_CTRL_BPP_4 0x2
#define JZ_LCD_CTRL_BPP_8 0x3
#define JZ_LCD_CTRL_BPP_15_16 0x4
#define JZ_LCD_CTRL_BPP_18_24 0x5
#define JZ_LCD_CMD_SOF_IRQ BIT(15)
#define JZ_LCD_CMD_EOF_IRQ BIT(16)
#define JZ_LCD_CMD_ENABLE_PAL BIT(12)
#define JZ_LCD_SYNC_MASK 0x3ff
#define JZ_LCD_STATE_DISABLED BIT(0)
struct jzfb_framedesc {
uint32_t next;
uint32_t addr;
uint32_t id;
uint32_t cmd;
} __packed;
struct jzfb {
struct fb_info *fb;
struct platform_device *pdev;
void __iomem *base;
struct resource *mem;
struct jz4740_fb_platform_data *pdata;
size_t vidmem_size;
void *vidmem;
dma_addr_t vidmem_phys;
struct jzfb_framedesc *framedesc;
dma_addr_t framedesc_phys;
struct clk *ldclk;
struct clk *lpclk;
unsigned is_enabled:1;
struct mutex lock;
uint32_t pseudo_palette[16];
};
static const struct fb_fix_screeninfo jzfb_fix = {
.id = "JZ4740 FB",
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_TRUECOLOR,
.xpanstep = 0,
.ypanstep = 0,
.ywrapstep = 0,
.accel = FB_ACCEL_NONE,
};
static const struct jz_gpio_bulk_request jz_lcd_ctrl_pins[] = {
JZ_GPIO_BULK_PIN(LCD_PCLK),
JZ_GPIO_BULK_PIN(LCD_HSYNC),
JZ_GPIO_BULK_PIN(LCD_VSYNC),
JZ_GPIO_BULK_PIN(LCD_DE),
JZ_GPIO_BULK_PIN(LCD_PS),
JZ_GPIO_BULK_PIN(LCD_REV),
JZ_GPIO_BULK_PIN(LCD_CLS),
JZ_GPIO_BULK_PIN(LCD_SPL),
};
static const struct jz_gpio_bulk_request jz_lcd_data_pins[] = {
JZ_GPIO_BULK_PIN(LCD_DATA0),
JZ_GPIO_BULK_PIN(LCD_DATA1),
JZ_GPIO_BULK_PIN(LCD_DATA2),
JZ_GPIO_BULK_PIN(LCD_DATA3),
JZ_GPIO_BULK_PIN(LCD_DATA4),
JZ_GPIO_BULK_PIN(LCD_DATA5),
JZ_GPIO_BULK_PIN(LCD_DATA6),
JZ_GPIO_BULK_PIN(LCD_DATA7),
JZ_GPIO_BULK_PIN(LCD_DATA8),
JZ_GPIO_BULK_PIN(LCD_DATA9),
JZ_GPIO_BULK_PIN(LCD_DATA10),
JZ_GPIO_BULK_PIN(LCD_DATA11),
JZ_GPIO_BULK_PIN(LCD_DATA12),
JZ_GPIO_BULK_PIN(LCD_DATA13),
JZ_GPIO_BULK_PIN(LCD_DATA14),
JZ_GPIO_BULK_PIN(LCD_DATA15),
JZ_GPIO_BULK_PIN(LCD_DATA16),
JZ_GPIO_BULK_PIN(LCD_DATA17),
};
static unsigned int jzfb_num_ctrl_pins(struct jzfb *jzfb)
{
unsigned int num;
switch (jzfb->pdata->lcd_type) {
case JZ_LCD_TYPE_GENERIC_16_BIT:
num = 4;
break;
case JZ_LCD_TYPE_GENERIC_18_BIT:
num = 4;
break;
case JZ_LCD_TYPE_8BIT_SERIAL:
num = 3;
break;
case JZ_LCD_TYPE_SPECIAL_TFT_1:
case JZ_LCD_TYPE_SPECIAL_TFT_2:
case JZ_LCD_TYPE_SPECIAL_TFT_3:
num = 8;
break;
default:
num = 0;
break;
}
return num;
}
static unsigned int jzfb_num_data_pins(struct jzfb *jzfb)
{
unsigned int num;
switch (jzfb->pdata->lcd_type) {
case JZ_LCD_TYPE_GENERIC_16_BIT:
num = 16;
break;
case JZ_LCD_TYPE_GENERIC_18_BIT:
num = 18;
break;
case JZ_LCD_TYPE_8BIT_SERIAL:
num = 8;
break;
case JZ_LCD_TYPE_SPECIAL_TFT_1:
case JZ_LCD_TYPE_SPECIAL_TFT_2:
case JZ_LCD_TYPE_SPECIAL_TFT_3:
if (jzfb->pdata->bpp == 18)
num = 18;
else
num = 16;
break;
default:
num = 0;
break;
}
return num;
}
/* Based on CNVT_TOHW macro from skeletonfb.c */
static inline uint32_t jzfb_convert_color_to_hw(unsigned val,
struct fb_bitfield *bf)
{
return (((val << bf->length) + 0x7FFF - val) >> 16) << bf->offset;
}
static int jzfb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp, struct fb_info *fb)
{
uint32_t color;
if (regno >= 16)
return -EINVAL;
color = jzfb_convert_color_to_hw(red, &fb->var.red);
color |= jzfb_convert_color_to_hw(green, &fb->var.green);
color |= jzfb_convert_color_to_hw(blue, &fb->var.blue);
color |= jzfb_convert_color_to_hw(transp, &fb->var.transp);
((uint32_t *)(fb->pseudo_palette))[regno] = color;
return 0;
}
static int jzfb_get_controller_bpp(struct jzfb *jzfb)
{
switch (jzfb->pdata->bpp) {
case 18:
case 24:
return 32;
case 15:
return 16;
default:
return jzfb->pdata->bpp;
}
}
static struct fb_videomode *jzfb_get_mode(struct jzfb *jzfb,
struct fb_var_screeninfo *var)
{
size_t i;
struct fb_videomode *mode = jzfb->pdata->modes;
for (i = 0; i < jzfb->pdata->num_modes; ++i, ++mode) {
if (mode->xres == var->xres && mode->yres == var->yres)
return mode;
}
return NULL;
}
static int jzfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fb)
{
struct jzfb *jzfb = fb->par;
struct fb_videomode *mode;
if (var->bits_per_pixel != jzfb_get_controller_bpp(jzfb) &&
var->bits_per_pixel != jzfb->pdata->bpp)
return -EINVAL;
mode = jzfb_get_mode(jzfb, var);
if (mode == NULL)
return -EINVAL;
fb_videomode_to_var(var, mode);
switch (jzfb->pdata->bpp) {
case 8:
break;
case 15:
var->red.offset = 10;
var->red.length = 5;
var->green.offset = 6;
var->green.length = 5;
var->blue.offset = 0;
var->blue.length = 5;
break;
case 16:
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 6;
var->blue.offset = 0;
var->blue.length = 5;
break;
case 18:
var->red.offset = 16;
var->red.length = 6;
var->green.offset = 8;
var->green.length = 6;
var->blue.offset = 0;
var->blue.length = 6;
var->bits_per_pixel = 32;
break;
case 32:
case 24:
var->transp.offset = 24;
var->transp.length = 8;
var->red.offset = 16;
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
var->bits_per_pixel = 32;
break;
default:
break;
}
return 0;
}
static int jzfb_set_par(struct fb_info *info)
{
struct jzfb *jzfb = info->par;
struct jz4740_fb_platform_data *pdata = jzfb->pdata;
struct fb_var_screeninfo *var = &info->var;
struct fb_videomode *mode;
uint16_t hds, vds;
uint16_t hde, vde;
uint16_t ht, vt;
uint32_t ctrl;
uint32_t cfg;
unsigned long rate;
mode = jzfb_get_mode(jzfb, var);
if (mode == NULL)
return -EINVAL;
if (mode == info->mode)
return 0;
info->mode = mode;
hds = mode->hsync_len + mode->left_margin;
hde = hds + mode->xres;
ht = hde + mode->right_margin;
vds = mode->vsync_len + mode->upper_margin;
vde = vds + mode->yres;
vt = vde + mode->lower_margin;
ctrl = JZ_LCD_CTRL_OFUP | JZ_LCD_CTRL_BURST_16;
switch (pdata->bpp) {
case 1:
ctrl |= JZ_LCD_CTRL_BPP_1;
break;
case 2:
ctrl |= JZ_LCD_CTRL_BPP_2;
break;
case 4:
ctrl |= JZ_LCD_CTRL_BPP_4;
break;
case 8:
ctrl |= JZ_LCD_CTRL_BPP_8;
break;
case 15:
ctrl |= JZ_LCD_CTRL_RGB555; /* Falltrough */
case 16:
ctrl |= JZ_LCD_CTRL_BPP_15_16;
break;
case 18:
case 24:
case 32:
ctrl |= JZ_LCD_CTRL_BPP_18_24;
break;
default:
break;
}
cfg = pdata->lcd_type & 0xf;
if (!(mode->sync & FB_SYNC_HOR_HIGH_ACT))
cfg |= JZ_LCD_CFG_HSYNC_ACTIVE_LOW;
if (!(mode->sync & FB_SYNC_VERT_HIGH_ACT))
cfg |= JZ_LCD_CFG_VSYNC_ACTIVE_LOW;
if (pdata->pixclk_falling_edge)
cfg |= JZ_LCD_CFG_PCLK_FALLING_EDGE;
if (pdata->date_enable_active_low)
cfg |= JZ_LCD_CFG_DE_ACTIVE_LOW;
if (pdata->lcd_type == JZ_LCD_TYPE_GENERIC_18_BIT)
cfg |= JZ_LCD_CFG_18_BIT;
if (mode->pixclock) {
rate = PICOS2KHZ(mode->pixclock) * 1000;
mode->refresh = rate / vt / ht;
} else {
if (pdata->lcd_type == JZ_LCD_TYPE_8BIT_SERIAL)
rate = mode->refresh * (vt + 2 * mode->xres) * ht;
else
rate = mode->refresh * vt * ht;
mode->pixclock = KHZ2PICOS(rate / 1000);
}
mutex_lock(&jzfb->lock);
if (!jzfb->is_enabled)
clk_enable(jzfb->ldclk);
else
ctrl |= JZ_LCD_CTRL_ENABLE;
switch (pdata->lcd_type) {
case JZ_LCD_TYPE_SPECIAL_TFT_1:
case JZ_LCD_TYPE_SPECIAL_TFT_2:
case JZ_LCD_TYPE_SPECIAL_TFT_3:
writel(pdata->special_tft_config.spl, jzfb->base + JZ_REG_LCD_SPL);
writel(pdata->special_tft_config.cls, jzfb->base + JZ_REG_LCD_CLS);
writel(pdata->special_tft_config.ps, jzfb->base + JZ_REG_LCD_PS);
writel(pdata->special_tft_config.ps, jzfb->base + JZ_REG_LCD_REV);
break;
default:
cfg |= JZ_LCD_CFG_PS_DISABLE;
cfg |= JZ_LCD_CFG_CLS_DISABLE;
cfg |= JZ_LCD_CFG_SPL_DISABLE;
cfg |= JZ_LCD_CFG_REV_DISABLE;
break;
}
writel(mode->hsync_len, jzfb->base + JZ_REG_LCD_HSYNC);
writel(mode->vsync_len, jzfb->base + JZ_REG_LCD_VSYNC);
writel((ht << 16) | vt, jzfb->base + JZ_REG_LCD_VAT);
writel((hds << 16) | hde, jzfb->base + JZ_REG_LCD_DAH);
writel((vds << 16) | vde, jzfb->base + JZ_REG_LCD_DAV);
writel(cfg, jzfb->base + JZ_REG_LCD_CFG);
writel(ctrl, jzfb->base + JZ_REG_LCD_CTRL);
if (!jzfb->is_enabled)
clk_disable(jzfb->ldclk);
mutex_unlock(&jzfb->lock);
clk_set_rate(jzfb->lpclk, rate);
clk_set_rate(jzfb->ldclk, rate * 3);
return 0;
}
static void jzfb_enable(struct jzfb *jzfb)
{
uint32_t ctrl;
clk_enable(jzfb->ldclk);
jz_gpio_bulk_resume(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
jz_gpio_bulk_resume(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
writel(0, jzfb->base + JZ_REG_LCD_STATE);
writel(jzfb->framedesc->next, jzfb->base + JZ_REG_LCD_DA0);
ctrl = readl(jzfb->base + JZ_REG_LCD_CTRL);
ctrl |= JZ_LCD_CTRL_ENABLE;
ctrl &= ~JZ_LCD_CTRL_DISABLE;
writel(ctrl, jzfb->base + JZ_REG_LCD_CTRL);
}
static void jzfb_disable(struct jzfb *jzfb)
{
uint32_t ctrl;
ctrl = readl(jzfb->base + JZ_REG_LCD_CTRL);
ctrl |= JZ_LCD_CTRL_DISABLE;
writel(ctrl, jzfb->base + JZ_REG_LCD_CTRL);
do {
ctrl = readl(jzfb->base + JZ_REG_LCD_STATE);
} while (!(ctrl & JZ_LCD_STATE_DISABLED));
jz_gpio_bulk_suspend(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
jz_gpio_bulk_suspend(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
clk_disable(jzfb->ldclk);
}
static int jzfb_blank(int blank_mode, struct fb_info *info)
{
struct jzfb *jzfb = info->par;
switch (blank_mode) {
case FB_BLANK_UNBLANK:
mutex_lock(&jzfb->lock);
if (jzfb->is_enabled) {
mutex_unlock(&jzfb->lock);
return 0;
}
jzfb_enable(jzfb);
jzfb->is_enabled = 1;
mutex_unlock(&jzfb->lock);
break;
default:
mutex_lock(&jzfb->lock);
if (!jzfb->is_enabled) {
mutex_unlock(&jzfb->lock);
return 0;
}
jzfb_disable(jzfb);
jzfb->is_enabled = 0;
mutex_unlock(&jzfb->lock);
break;
}
return 0;
}
static int jzfb_alloc_devmem(struct jzfb *jzfb)
{
int max_videosize = 0;
struct fb_videomode *mode = jzfb->pdata->modes;
void *page;
int i;
for (i = 0; i < jzfb->pdata->num_modes; ++mode, ++i) {
if (max_videosize < mode->xres * mode->yres)
max_videosize = mode->xres * mode->yres;
}
max_videosize *= jzfb_get_controller_bpp(jzfb) >> 3;
jzfb->framedesc = dma_alloc_coherent(&jzfb->pdev->dev,
sizeof(*jzfb->framedesc),
&jzfb->framedesc_phys, GFP_KERNEL);
if (!jzfb->framedesc)
return -ENOMEM;
jzfb->vidmem_size = PAGE_ALIGN(max_videosize);
jzfb->vidmem = dma_alloc_coherent(&jzfb->pdev->dev,
jzfb->vidmem_size,
&jzfb->vidmem_phys, GFP_KERNEL);
if (!jzfb->vidmem)
goto err_free_framedesc;
for (page = jzfb->vidmem;
page < jzfb->vidmem + PAGE_ALIGN(jzfb->vidmem_size);
page += PAGE_SIZE) {
SetPageReserved(virt_to_page(page));
}
jzfb->framedesc->next = jzfb->framedesc_phys;
jzfb->framedesc->addr = jzfb->vidmem_phys;
jzfb->framedesc->id = 0xdeafbead;
jzfb->framedesc->cmd = 0;
jzfb->framedesc->cmd |= max_videosize / 4;
return 0;
err_free_framedesc:
dma_free_coherent(&jzfb->pdev->dev, sizeof(*jzfb->framedesc),
jzfb->framedesc, jzfb->framedesc_phys);
return -ENOMEM;
}
static void jzfb_free_devmem(struct jzfb *jzfb)
{
dma_free_coherent(&jzfb->pdev->dev, jzfb->vidmem_size,
jzfb->vidmem, jzfb->vidmem_phys);
dma_free_coherent(&jzfb->pdev->dev, sizeof(*jzfb->framedesc),
jzfb->framedesc, jzfb->framedesc_phys);
}
static struct fb_ops jzfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = jzfb_check_var,
.fb_set_par = jzfb_set_par,
.fb_blank = jzfb_blank,
.fb_fillrect = sys_fillrect,
.fb_copyarea = sys_copyarea,
.fb_imageblit = sys_imageblit,
.fb_setcolreg = jzfb_setcolreg,
};
static int jzfb_probe(struct platform_device *pdev)
{
int ret;
struct jzfb *jzfb;
struct fb_info *fb;
struct jz4740_fb_platform_data *pdata = pdev->dev.platform_data;
struct resource *mem;
if (!pdata) {
dev_err(&pdev->dev, "Missing platform data\n");
return -ENXIO;
}
fb = framebuffer_alloc(sizeof(struct jzfb), &pdev->dev);
if (!fb) {
dev_err(&pdev->dev, "Failed to allocate framebuffer device\n");
return -ENOMEM;
}
fb->fbops = &jzfb_ops;
fb->flags = FBINFO_DEFAULT;
jzfb = fb->par;
jzfb->pdev = pdev;
jzfb->pdata = pdata;
jzfb->ldclk = devm_clk_get(&pdev->dev, "lcd");
if (IS_ERR(jzfb->ldclk)) {
ret = PTR_ERR(jzfb->ldclk);
dev_err(&pdev->dev, "Failed to get lcd clock: %d\n", ret);
goto err_framebuffer_release;
}
jzfb->lpclk = devm_clk_get(&pdev->dev, "lcd_pclk");
if (IS_ERR(jzfb->lpclk)) {
ret = PTR_ERR(jzfb->lpclk);
dev_err(&pdev->dev, "Failed to get lcd pixel clock: %d\n", ret);
goto err_framebuffer_release;
}
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
jzfb->base = devm_ioremap_resource(&pdev->dev, mem);
if (IS_ERR(jzfb->base)) {
ret = PTR_ERR(jzfb->base);
goto err_framebuffer_release;
}
platform_set_drvdata(pdev, jzfb);
mutex_init(&jzfb->lock);
fb_videomode_to_modelist(pdata->modes, pdata->num_modes,
&fb->modelist);
fb_videomode_to_var(&fb->var, pdata->modes);
fb->var.bits_per_pixel = pdata->bpp;
jzfb_check_var(&fb->var, fb);
ret = jzfb_alloc_devmem(jzfb);
if (ret) {
dev_err(&pdev->dev, "Failed to allocate video memory\n");
goto err_framebuffer_release;
}
fb->fix = jzfb_fix;
fb->fix.line_length = fb->var.bits_per_pixel * fb->var.xres / 8;
fb->fix.mmio_start = mem->start;
fb->fix.mmio_len = resource_size(mem);
fb->fix.smem_start = jzfb->vidmem_phys;
fb->fix.smem_len = fb->fix.line_length * fb->var.yres;
fb->screen_base = jzfb->vidmem;
fb->pseudo_palette = jzfb->pseudo_palette;
fb_alloc_cmap(&fb->cmap, 256, 0);
clk_enable(jzfb->ldclk);
jzfb->is_enabled = 1;
writel(jzfb->framedesc->next, jzfb->base + JZ_REG_LCD_DA0);
fb->mode = NULL;
jzfb_set_par(fb);
jz_gpio_bulk_request(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
jz_gpio_bulk_request(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
ret = register_framebuffer(fb);
if (ret) {
dev_err(&pdev->dev, "Failed to register framebuffer: %d\n", ret);
goto err_free_devmem;
}
jzfb->fb = fb;
return 0;
err_free_devmem:
jz_gpio_bulk_free(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
jz_gpio_bulk_free(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
fb_dealloc_cmap(&fb->cmap);
jzfb_free_devmem(jzfb);
err_framebuffer_release:
framebuffer_release(fb);
return ret;
}
static int jzfb_remove(struct platform_device *pdev)
{
struct jzfb *jzfb = platform_get_drvdata(pdev);
jzfb_blank(FB_BLANK_POWERDOWN, jzfb->fb);
jz_gpio_bulk_free(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
jz_gpio_bulk_free(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
fb_dealloc_cmap(&jzfb->fb->cmap);
jzfb_free_devmem(jzfb);
framebuffer_release(jzfb->fb);
return 0;
}
#ifdef CONFIG_PM
static int jzfb_suspend(struct device *dev)
{
struct jzfb *jzfb = dev_get_drvdata(dev);
console_lock();
fb_set_suspend(jzfb->fb, 1);
console_unlock();
mutex_lock(&jzfb->lock);
if (jzfb->is_enabled)
jzfb_disable(jzfb);
mutex_unlock(&jzfb->lock);
return 0;
}
static int jzfb_resume(struct device *dev)
{
struct jzfb *jzfb = dev_get_drvdata(dev);
clk_enable(jzfb->ldclk);
mutex_lock(&jzfb->lock);
if (jzfb->is_enabled)
jzfb_enable(jzfb);
mutex_unlock(&jzfb->lock);
console_lock();
fb_set_suspend(jzfb->fb, 0);
console_unlock();
return 0;
}
static const struct dev_pm_ops jzfb_pm_ops = {
.suspend = jzfb_suspend,
.resume = jzfb_resume,
.poweroff = jzfb_suspend,
.restore = jzfb_resume,
};
#define JZFB_PM_OPS (&jzfb_pm_ops)
#else
#define JZFB_PM_OPS NULL
#endif
static struct platform_driver jzfb_driver = {
.probe = jzfb_probe,
.remove = jzfb_remove,
.driver = {
.name = "jz4740-fb",
.pm = JZFB_PM_OPS,
},
};
static int __init jzfb_init(void)
{
return platform_driver_register(&jzfb_driver);
}
module_init(jzfb_init);
static void __exit jzfb_exit(void)
{
platform_driver_unregister(&jzfb_driver);
}
module_exit(jzfb_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("JZ4740 SoC LCD framebuffer driver");
MODULE_ALIAS("platform:jz4740-fb");
arch/mips/jz4770/board-gcw0.c
/*
* board-gcw0.c - GCW Zero: JZ4770-based handheld game console
*
* File based on Pisces board definition.
* Copyright (C) 2006-2008, Ingenic Semiconductor Inc.
* Original author: <jlwei@ingenic.cn>
*
* GCW Zero specific changes:
* Copyright (C) 2012, Maarten ter Huurne <maarten@treewalker.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/ioport.h>
#include <linux/mm.h>
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <asm/cpu.h>
#include <asm/bootinfo.h>
#include <asm/mipsregs.h>
#include <asm/reboot.h>
#include <linux/mmc/host.h>
#include <linux/act8600_power.h>
#include <linux/platform_data/jz4770_fb.h>
#include <linux/platform_data/linkdev.h>
#include <linux/platform_data/mxc6225.h>
#include <linux/platform_data/pwm-haptic.h>
#include <linux/platform_data/usb-musb-jz4770.h>
#include <linux/pinctrl/machine.h>
#include <linux/power/gpio-charger.h>
#include <linux/power/jz4770-battery.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/rfkill-regulator.h>
#include <linux/usb/musb.h>
#include <media/radio-rda5807.h>
#include <sound/jz4770.h>
#include <video/jzpanel.h>
#ifdef CONFIG_PANEL_HX8347A01
#include <video/panel-hx8347a01.h>
#else
#include <video/panel-nt39016.h>
#endif
#include <asm/mach-jz4770/board-gcw0.h>
#include <asm/mach-jz4770/gpio.h>
#include <asm/mach-jz4770/jz4770i2c.h>
#include <asm/mach-jz4770/jz4770misc.h>
#include <asm/mach-jz4770/mmc.h>
#include <asm/mach-jz4770/platform.h>
#include "clock.h"
/* Video */
#define GPIO_PANEL_SOMETHING JZ_GPIO_PORTF(0)
static int gcw0_panel_init(void **out_panel,
struct device *dev, void *panel_pdata)
{
int ret;
#ifdef CONFIG_PANEL_HX8347A01
ret = hx8347a01_panel_ops.init(out_panel, dev, panel_pdata);
#else
ret = nt39016_panel_ops.init(out_panel, dev, panel_pdata);
#endif
if (ret)
return ret;
ret = devm_gpio_request(dev, GPIO_PANEL_SOMETHING, "LCD panel unknown");
if (ret) {
dev_err(dev,
"Failed to request LCD panel unknown pin: %d\n", ret);
return ret;
}
gpio_direction_output(GPIO_PANEL_SOMETHING, 1);
return 0;
}
static void gcw0_panel_exit(void *panel)
{
#ifdef CONFIG_PANEL_HX8347A01
hx8347a01_panel_ops.exit(panel);
#else
nt39016_panel_ops.exit(panel);
#endif
}
static void gcw0_panel_enable(void *panel)
{
act8600_output_enable(6, true);
#ifdef CONFIG_PANEL_HX8347A01
hx8347a01_panel_ops.enable(panel);
#else
nt39016_panel_ops.enable(panel);
#endif
}
static void gcw0_panel_disable(void *panel)
{
#ifdef CONFIG_PANEL_HX8347A01
hx8347a01_panel_ops.disable(panel);
#else
nt39016_panel_ops.disable(panel);
#endif
act8600_output_enable(6, false);
}
#ifdef CONFIG_PANEL_HX8347A01
static struct hx8347a01_platform_data gcw0_panel_pdata = {
#else
static struct nt39016_platform_data gcw0_panel_pdata = {
#endif
.gpio_reset = JZ_GPIO_PORTE(2),
.gpio_clock = JZ_GPIO_PORTE(15),
.gpio_enable = JZ_GPIO_PORTE(16),
.gpio_data = JZ_GPIO_PORTE(17),
};
static struct panel_ops gcw0_panel_ops = {
.init = gcw0_panel_init,
.exit = gcw0_panel_exit,
.enable = gcw0_panel_enable,
.disable = gcw0_panel_disable,
};
static struct jzfb_platform_data gcw0_fb_pdata = {
.panel_ops = &gcw0_panel_ops,
.panel_pdata = &gcw0_panel_pdata,
};
/* Buttons */
static struct gpio_keys_button gcw0_buttons[] = {
/* D-pad up */ {
.gpio = JZ_GPIO_PORTE(21),
.active_low = 1,
.code = KEY_UP,
.debounce_interval = 10,
},
/* D-pad down */ {
.gpio = JZ_GPIO_PORTE(25),
.active_low = 1,
.code = KEY_DOWN,
.debounce_interval = 10,
},
/* D-pad left */ {
.gpio = JZ_GPIO_PORTE(23),
.active_low = 1,
.code = KEY_LEFT,
.debounce_interval = 10,
},
/* D-pad right */ {
.gpio = JZ_GPIO_PORTE(24),
.active_low = 1,
.code = KEY_RIGHT,
.debounce_interval = 10,
},
/* A button */ {
.gpio = JZ_GPIO_PORTE(29),
.active_low = 1,
.code = KEY_LEFTCTRL,
.debounce_interval = 10,
},
/* B button */ {
.gpio = JZ_GPIO_PORTE(20),
.active_low = 1,
.code = KEY_LEFTALT,
.debounce_interval = 10,
},
/* Top button (labeled Y, should be X) */ {
.gpio = JZ_GPIO_PORTE(27),
.active_low = 1,
.code = KEY_SPACE,
.debounce_interval = 10,
},
/* Left button (labeled X, should be Y) */ {
.gpio = JZ_GPIO_PORTE(28),
.active_low = 1,
.code = KEY_LEFTSHIFT,
.debounce_interval = 10,
},
/* Left shoulder button */ {
.gpio = JZ_GPIO_PORTB(20),
.active_low = 1,
.code = KEY_TAB,
.debounce_interval = 10,
},
/* Right shoulder button */ {
.gpio = JZ_GPIO_PORTE(26),
.active_low = 1,
.code = KEY_BACKSPACE,
.debounce_interval = 10,
},
/* START button */ {
.gpio = JZ_GPIO_PORTB(21),
.active_low = 1,
.code = KEY_ENTER,
.debounce_interval = 10,
},
/* SELECT button */ {
.gpio = JZ_GPIO_PORTD(18),
/* This is the only button that is active high,
* since it doubles as BOOT_SEL1.
*/
.active_low = 0,
.code = KEY_ESC,
.debounce_interval = 10,
},
/* POWER slider */ {
.gpio = JZ_GPIO_PORTA(30),
.active_low = 1,
.code = KEY_POWER,
.debounce_interval = 10,
.wakeup = 1,
},
/* POWER hold */ {
.gpio = JZ_GPIO_PORTF(11),
.active_low = 1,
.code = KEY_PAUSE,
.debounce_interval = 10,
},
};
static struct gpio_keys_platform_data gcw0_gpio_keys_pdata = {
.buttons = gcw0_buttons,
.nbuttons = ARRAY_SIZE(gcw0_buttons),
.rep = 1,
};
static struct platform_device gcw0_gpio_keys_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &gcw0_gpio_keys_pdata,
},
};
/* SD cards */
static struct jz_mmc_platform_data gcw_internal_sd_data = {
.support_sdio = 0,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.bus_width = 4,
.gpio_card_detect = -1,
.gpio_read_only = -1,
.gpio_power = -1,
.nonremovable = 1,
};
static struct jz_mmc_platform_data gcw_external_sd_data = {
.support_sdio = 0,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.bus_width = 4,
.gpio_card_detect = JZ_GPIO_PORTB(2),
.card_detect_active_low = 1,
.gpio_read_only = -1,
.gpio_power = JZ_GPIO_PORTE(9),
.power_active_low = 1,
};
/* FM radio receiver */
static struct rda5807_platform_data gcw0_rda5807_pdata = {
.input_flags = RDA5807_INPUT_LNA_WC_25 | RDA5807_LNA_PORT_P,
.output_flags = RDA5807_OUTPUT_AUDIO_ANALOG,
};
/* Power Management Unit */
static struct act8600_outputs_t act8600_outputs[] = {
{ 4, 0x57, true }, /* USB OTG: 5.3V */
{ 5, 0x31, true }, /* AVD: 2.5V */
{ 6, 0x39, false }, /* LCD: 3.3V */
{ 7, 0x39, true }, /* generic: 3.3V */
{ 8, 0x24, true }, /* generic: 1.8V */
};
static struct act8600_platform_pdata_t act8600_platform_pdata = {
.outputs = act8600_outputs,
.nr_outputs = ARRAY_SIZE(act8600_outputs),
};
/* Battery */
static struct jz_battery_platform_data gcw0_battery_pdata = {
.gpio_charge = -1,
//.gpio_charge_active_low = 0,
.info = {
.name = "battery",
.technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
.voltage_max_design = 5700000,
.voltage_min_design = 4600000,
},
};
/* Charger */
#define GPIO_DC_CHARGER JZ_GPIO_PORTF(5)
#define GPIO_USB_CHARGER JZ_GPIO_PORTB(5)
static char *gcw0_batteries[] = {
"battery",
};
static struct gpio_charger_platform_data gcw0_dc_charger_pdata = {
.name = "dc",
.type = POWER_SUPPLY_TYPE_MAINS,
.gpio = GPIO_DC_CHARGER,
.supplied_to = gcw0_batteries,
.num_supplicants = ARRAY_SIZE(gcw0_batteries),
};
static struct platform_device gcw0_dc_charger_device = {
.name = "gpio-charger",
.id = 0,
.dev = {
.platform_data = &gcw0_dc_charger_pdata,
},
};
static struct gpio_charger_platform_data gcw0_usb_charger_pdata = {
.name = "usb",
.type = POWER_SUPPLY_TYPE_USB,
.gpio = GPIO_USB_CHARGER,
.supplied_to = gcw0_batteries,
.num_supplicants = ARRAY_SIZE(gcw0_batteries),
};
static struct platform_device gcw0_usb_charger_device = {
.name = "gpio-charger",
.id = 1,
.dev = {
.platform_data = &gcw0_usb_charger_pdata,
},
};
/* USB 1.1 Host (OHCI) */
static struct regulator_consumer_supply gcw0_internal_usb_regulator_consumer =
REGULATOR_SUPPLY("vrfkill", "rfkill-regulator.0");
static struct regulator_init_data gcw0_internal_usb_regulator_init_data = {
.num_consumer_supplies = 1,
.consumer_supplies = &gcw0_internal_usb_regulator_consumer,
.constraints = {
.name = "USB power",
.min_uV = 3300000,
.max_uV = 3300000,
.valid_modes_mask = REGULATOR_MODE_NORMAL,
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
};
static struct fixed_voltage_config gcw0_internal_usb_regulator_data = {
.supply_name = "USB power",
.microvolts = 3300000,
.gpio = JZ_GPIO_PORTF(10),
.init_data = &gcw0_internal_usb_regulator_init_data,
};
static struct platform_device gcw0_internal_usb_regulator_device = {
.name = "reg-fixed-voltage",
.id = -1,
.dev = {
.platform_data = &gcw0_internal_usb_regulator_data,
}
};
/* USB OTG (musb) */
#define GPIO_USB_OTG_ID_PIN JZ_GPIO_PORTF(18)
static struct jz_otg_board_data gcw0_otg_board_data = {
.gpio_id_pin = GPIO_USB_OTG_ID_PIN,
.gpio_id_debounce_ms = 500,
};
/* I2C devices */
/*
* Select which I2C busses use a hardware adapter (i2c-jz4770) and which use
* a software adapter (i2c-gpio).
*/
#if defined(CONFIG_I2C_JZ4770)
#define I2C0_USE_HW 1
#define I2C1_USE_HW 1
#else
#define I2C0_USE_HW 0
#define I2C1_USE_HW 0
#endif
static struct i2c_board_info gcw0_i2c0_devs[] __initdata = {
{
.type = "radio-rda5807",
.addr = RDA5807_I2C_ADDR,
.platform_data = &gcw0_rda5807_pdata,
},
};
/* We don't have a use for the INT pin yet. */
#define GPIO_MXC6225_INT JZ_GPIO_PORTF(13)
static struct i2c_board_info gcw0_i2c1_devs[] __initdata = {
{
.type = "mxc6225",
.addr = MXC6225_I2C_ADDR,
},
};
static struct i2c_board_info gcw0_i2c3_devs[] __initdata = {
{
.type = ACT8600_NAME,
.addr = ACT8600_I2C_ADDR,
.platform_data = &act8600_platform_pdata,
},
};
static struct i2c_board_info gcw0_i2c4_devs[] __initdata = {
/* the IT6610 is on this bus, but we don't have a driver for it */
};
/* I2C busses */
static struct i2c_jz4770_platform_data gcw0_i2c0_platform_data __initdata = {
.use_dma = false,
};
static struct i2c_jz4770_platform_data gcw0_i2c1_platform_data __initdata = {
.use_dma = false,
};
#if I2C0_USE_HW == 0
static struct i2c_gpio_platform_data gcw0_i2c0_gpio_data = {
.sda_pin = JZ_GPIO_PORTD(30),
.scl_pin = JZ_GPIO_PORTD(31),
.udelay = 2, /* 250 kHz */
};
static struct platform_device gcw0_i2c0_gpio_device = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &gcw0_i2c0_gpio_data,
},
};
#endif
#if I2C1_USE_HW == 0
static struct i2c_gpio_platform_data gcw0_i2c1_gpio_data = {
.sda_pin = JZ_GPIO_PORTE(30),
.scl_pin = JZ_GPIO_PORTE(31),
.udelay = 2, /* 250 kHz */
};
static struct platform_device gcw0_i2c1_gpio_device = {
.name = "i2c-gpio",
.id = 1,
.dev = {
.platform_data = &gcw0_i2c1_gpio_data,
},
};
#endif
static struct i2c_gpio_platform_data gcw0_i2c3_gpio_data = {
.sda_pin = JZ_GPIO_PORTD(5),
.scl_pin = JZ_GPIO_PORTD(4),
.udelay = 2, /* 250 kHz */
};
static struct platform_device gcw0_i2c3_gpio_device = {
.name = "i2c-gpio",
.id = 3,
.dev = {
.platform_data = &gcw0_i2c3_gpio_data,
},
};
static struct i2c_gpio_platform_data gcw0_i2c4_gpio_data = {
.sda_pin = JZ_GPIO_PORTD(6),
.scl_pin = JZ_GPIO_PORTD(7),
.udelay = 5, /* 100 kHz */
};
static struct platform_device gcw0_i2c4_gpio_device = {
.name = "i2c-gpio",
.id = 4,
.dev = {
.platform_data = &gcw0_i2c4_gpio_data,
},
};
/* LCD backlight */
static struct platform_pwm_backlight_data gcw0_backlight_pdata = {
.polarity = PWM_POLARITY_NORMAL,
.max_brightness = 255,
.dft_brightness = 145,
.pwm_period_ns = 40000, /* 25 kHz: outside human hearing range */
};
static struct platform_device gcw0_backlight_device = {
.name = "pwm-backlight",
.id = -1,
.dev = {
.platform_data = &gcw0_backlight_pdata,
},
};
/* Audio */
static struct jz4770_icdc_platform_data gcw0_icdc_pdata = {
.mic_mode = JZ4770_MIC_1,
};
static struct platform_device gcw0_audio_device = {
.name = "gcw0-audio",
.id = -1,
};
struct jz_clk_board_data jz_clk_bdata = {
/* These two are fixed in hardware. */
.ext_rate = 12000000,
.rtc_rate = 32768,
/*
* Pick 432 MHz as it is the least common multiple of 27 MHz (required
* by TV encoder) and 48 MHz (required by USB host).
*/
.pll1_rate = 432000000,
};
/* Power LED */
static struct gpio_led gcw0_leds[] = {
{
.name = "power",
.gpio = JZ_GPIO_PORTB(30),
.active_low = 1,
.default_state = LEDS_GPIO_DEFSTATE_ON,
},
};
static struct gpio_led_platform_data gcw0_led_pdata = {
.leds = gcw0_leds,
.num_leds = ARRAY_SIZE(gcw0_leds),
};
static struct platform_device gcw0_led_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &gcw0_led_pdata,
},
};
static struct rfkill_regulator_platform_data gcw0_rfkill_pdata = {
.name = "gcw0-wifi",
.type = RFKILL_TYPE_WLAN,
};
static struct platform_device gcw0_rfkill_device = {
.name = "rfkill-regulator",
.id = 0,
.dev = {
.platform_data = &gcw0_rfkill_pdata,
},
};
static const char * gcw0_joystick_gpiokeys_whitelist[] = {
"evdev",
};
static const struct linkdev_pdata_device_info gcw0_joystick_devices[] = {
{
.name = "analog joystick",
},
{
.name = "gpio-keys",
.handlers_whitelist = gcw0_joystick_gpiokeys_whitelist,
.nb_handlers = ARRAY_SIZE(gcw0_joystick_gpiokeys_whitelist),
},
};
static const struct linkdev_pdata_key_map gcw0_key_map[] = {
{
.code = KEY_UP,
.event = {
.type = EV_ABS,
.code = ABS_HAT0Y,
.value = -1,
},
},
{
.code = KEY_DOWN,
.event = {
.type = EV_ABS,
.code = ABS_HAT0Y,
.value = 1,
}
},
{
.code = KEY_LEFT,
.event = {
.type = EV_ABS,
.code = ABS_HAT0X,
.value = -1,
},
},
{
.code = KEY_RIGHT,
.event = {
.type = EV_ABS,
.code = ABS_HAT0X,
.value = 1,
},
},
{
.code = KEY_LEFTCTRL,
.event.code = BTN_EAST,
},
{
.code = KEY_LEFTALT,
.event.code = BTN_SOUTH,
},
{
.code = KEY_LEFTSHIFT,
.event.code = BTN_WEST,
},
{
.code = KEY_SPACE,
.event.code = BTN_NORTH,
},
{
.code = KEY_ENTER,
.event.code = BTN_START,
},
{
.code = KEY_ESC,
.event.code = BTN_SELECT,
},
{
.code = KEY_TAB,
.event.code = BTN_THUMBL,
},
{
.code = KEY_BACKSPACE,
.event.code = BTN_THUMBR,
},
};
static const struct linkdev_pdata_abs_map gcw0_abs_map[] = {
{
.name = "analog joystick",
.axis = ABS_X,
.axis_dest = ABS_X,
},
{
.name = "analog joystick",
.axis = ABS_Y,
.axis_dest = ABS_Y,
},
{
.name = "gpio-keys",
.axis = ABS_HAT0X,
.axis_dest = ABS_HAT0X,
},
{
.name = "gpio-keys",
.axis = ABS_HAT0Y,
.axis_dest = ABS_HAT0Y,
},
};
static struct linkdev_platform_data gcw0_joystick_pdata = {
/* This specific name informs SDL about the composition of the joystick */
.name = "linkdev device (Analog 2-axis 8-button 2-hat)",
.devices = gcw0_joystick_devices,
.nb_devices = ARRAY_SIZE(gcw0_joystick_devices),
.key_map = gcw0_key_map,
.key_map_size = ARRAY_SIZE(gcw0_key_map),
.abs_map = gcw0_abs_map,
.abs_map_size = ARRAY_SIZE(gcw0_abs_map),
};
/* GCW0 Input driver */
static struct platform_device gcw0_joystick_device = {
.name = "linkdev",
.id = -1,
.dev = {
.platform_data = &gcw0_joystick_pdata,
},
};
static struct pwm_haptic_platform_data gcw0_haptic_pdata = {
.pwm_period_ns = 2000000,
};
/* Rumble device */
static struct platform_device gcw0_haptic_device = {
.name = "pwm-haptic",
.id = -1,
.dev = {
.platform_data = &gcw0_haptic_pdata,
},
};
/* Device registration */
static struct platform_device *jz_platform_devices[] __initdata = {
&gcw0_internal_usb_regulator_device,
&jz4770_usb_ohci_device,
&jz4770_usb_otg_xceiv_device,
&jz4770_usb_otg_device,
&jz4770_lcd_device,
&jz4770_i2s_device,
&jz4770_pcm_device,
&jz4770_icdc_device,
#if I2C0_USE_HW == 1
&jz4770_i2c0_device,
#endif
#if I2C1_USE_HW == 1
&jz4770_i2c1_device,
#endif
#if I2C0_USE_HW == 0
&gcw0_i2c0_gpio_device,
#endif
#if I2C1_USE_HW == 0
&gcw0_i2c1_gpio_device,
#endif
&gcw0_i2c3_gpio_device,
&gcw0_i2c4_gpio_device,
&jz4770_pwm_device,
&jz4770_adc_device,
&jz4770_rtc_device,
&gcw0_gpio_keys_device,
&gcw0_backlight_device,
&gcw0_audio_device,
&jz4770_msc0_device,
&jz4770_msc1_device,
&gcw0_led_device,
&gcw0_dc_charger_device,
&gcw0_usb_charger_device,
&jz4770_vpu_device,
&gcw0_rfkill_device,
&gcw0_joystick_device,
&jz4770_wdt_device,
&gcw0_haptic_device,
};
static int __init gcw0_init_platform_devices(void)
{
struct musb_hdrc_platform_data *otg_platform_data =
jz4770_usb_otg_device.dev.platform_data;
otg_platform_data->board_data = &gcw0_otg_board_data;
jz4770_lcd_device.dev.platform_data = &gcw0_fb_pdata;
jz4770_adc_device.dev.platform_data = &gcw0_battery_pdata;
jz4770_msc0_device.dev.platform_data = &gcw_internal_sd_data;
jz4770_msc1_device.dev.platform_data = &gcw_external_sd_data;
jz4770_icdc_device.dev.platform_data = &gcw0_icdc_pdata;
return platform_add_devices(jz_platform_devices,
ARRAY_SIZE(jz_platform_devices));
}
static void __init board_i2c_init(void)
{
jz4770_i2c0_device.dev.platform_data = &gcw0_i2c0_platform_data;
jz4770_i2c1_device.dev.platform_data = &gcw0_i2c1_platform_data;
i2c_register_board_info(0, gcw0_i2c0_devs, ARRAY_SIZE(gcw0_i2c0_devs));
i2c_register_board_info(1, gcw0_i2c1_devs, ARRAY_SIZE(gcw0_i2c1_devs));
i2c_register_board_info(3, gcw0_i2c3_devs, ARRAY_SIZE(gcw0_i2c3_devs));
i2c_register_board_info(4, gcw0_i2c4_devs, ARRAY_SIZE(gcw0_i2c4_devs));
}
static void __init board_gpio_setup(void)
{
/* SELECT button */
jz_gpio_disable_pullup(JZ_GPIO_PORTD(18));
/* DC power source present (high active) */
jz_gpio_disable_pullup(GPIO_DC_CHARGER);
/* USB power source present (high active) */
jz_gpio_disable_pullup(GPIO_USB_CHARGER);
/* MXC6225 data sheet says INT should not be pulled up or down */
jz_gpio_disable_pullup(GPIO_MXC6225_INT);
}
static struct pinctrl_map pin_map[] __initdata = {
#if I2C0_USE_HW == 1
PIN_MAP_MUX_GROUP("i2c-jz4770.0", PINCTRL_STATE_DEFAULT,
"jz4770-pinctrl", NULL, "i2c0"),
#endif
#if I2C1_USE_HW == 1
PIN_MAP_MUX_GROUP("i2c-jz4770.1", PINCTRL_STATE_DEFAULT,
"jz4770-pinctrl", NULL, "i2c1"),
#endif
PIN_MAP_MUX_GROUP("jz-msc.0", PINCTRL_STATE_DEFAULT,
"jz4770-pinctrl", "msc0_4bit", "msc0"),
PIN_MAP_MUX_GROUP("jz-msc.1", PINCTRL_STATE_DEFAULT,
"jz4770-pinctrl", "msc1_4bit", "msc1"),
/* pwm1: LCD backlight */
PIN_MAP_MUX_GROUP("pwm-backlight", PINCTRL_STATE_DEFAULT,
"jz4770-pinctrl", NULL, "pwm1"),
/* pwm4: rumble motor */
PIN_MAP_MUX_GROUP("pwm-haptic", PINCTRL_STATE_DEFAULT,
"jz4770-pinctrl", NULL, "pwm4"),
PIN_MAP_MUX_GROUP("musb-jz.0", PINCTRL_STATE_DEFAULT,
"jz4770-pinctrl", NULL, "otg"),
PIN_MAP_MUX_GROUP("jz-lcd.0", PINCTRL_STATE_DEFAULT,
"jz4770-pinctrl", "lcd_rgb888", "lcd"),
PIN_MAP_MUX_GROUP("jz-lcd.0", PINCTRL_STATE_SLEEP,
"jz4770-pinctrl", "no_pins", "lcd"),
};
static struct pwm_lookup pwm_lookup[] = {
PWM_LOOKUP("jz4770-pwm", 1, "pwm-backlight", NULL),
PWM_LOOKUP("jz4770-pwm", 4, "pwm-haptic", NULL),
};
static void __init board_init_pins(void)
{
pinctrl_register_mappings(pin_map, ARRAY_SIZE(pin_map));
pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
}
static int __init gcw0_board_setup(void)
{
printk(KERN_INFO "GCW Zero JZ4770 setup\n");
board_init_pins();
board_gpio_setup();
board_i2c_init();
if (gcw0_init_platform_devices())
panic("Failed to initialize platform devices");
return 0;
}
arch_initcall(gcw0_board_setup);
menuconfig
接著焊接轉板
背面
接著上3D打印的外殼
感動的一刻
正面
下邊
左邊
上面
右邊
周哥屏對比IPS屏(感謝剃頭提供)
