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path: root/drivers/video/fbdev/bf537-lq035.c
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Diffstat (limited to 'drivers/video/fbdev/bf537-lq035.c')
-rw-r--r--drivers/video/fbdev/bf537-lq035.c891
1 files changed, 0 insertions, 891 deletions
diff --git a/drivers/video/fbdev/bf537-lq035.c b/drivers/video/fbdev/bf537-lq035.c
deleted file mode 100644
index ef29fb425122..000000000000
--- a/drivers/video/fbdev/bf537-lq035.c
+++ /dev/null
@@ -1,891 +0,0 @@
-/*
- * Analog Devices Blackfin(BF537 STAMP) + SHARP TFT LCD.
- * http://docs.blackfin.uclinux.org/doku.php?id=hw:cards:tft-lcd
- *
- * Copyright 2006-2010 Analog Devices Inc.
- * Licensed under the GPL-2.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/gpio.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/device.h>
-#include <linux/backlight.h>
-#include <linux/lcd.h>
-#include <linux/i2c.h>
-#include <linux/spinlock.h>
-#include <linux/dma-mapping.h>
-#include <linux/slab.h>
-#include <linux/platform_device.h>
-
-#include <asm/blackfin.h>
-#include <asm/irq.h>
-#include <asm/dpmc.h>
-#include <asm/dma.h>
-#include <asm/portmux.h>
-
-#define NO_BL 1
-
-#define MAX_BRIGHENESS 95
-#define MIN_BRIGHENESS 5
-#define NBR_PALETTE 256
-
-static const unsigned short ppi_pins[] = {
- P_PPI0_CLK, P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
- P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
- P_PPI0_D8, P_PPI0_D9, P_PPI0_D10, P_PPI0_D11,
- P_PPI0_D12, P_PPI0_D13, P_PPI0_D14, P_PPI0_D15, 0
-};
-
-static unsigned char *fb_buffer; /* RGB Buffer */
-static unsigned long *dma_desc_table;
-static int t_conf_done, lq035_open_cnt;
-static DEFINE_SPINLOCK(bfin_lq035_lock);
-
-static int landscape;
-module_param(landscape, int, 0);
-MODULE_PARM_DESC(landscape,
- "LANDSCAPE use 320x240 instead of Native 240x320 Resolution");
-
-static int bgr;
-module_param(bgr, int, 0);
-MODULE_PARM_DESC(bgr,
- "BGR use 16-bit BGR-565 instead of RGB-565");
-
-static int nocursor = 1;
-module_param(nocursor, int, 0644);
-MODULE_PARM_DESC(nocursor, "cursor enable/disable");
-
-static unsigned long current_brightness; /* backlight */
-
-/* AD5280 vcomm */
-static unsigned char vcomm_value = 150;
-static struct i2c_client *ad5280_client;
-
-static void set_vcomm(void)
-{
- int nr;
-
- if (!ad5280_client)
- return;
-
- nr = i2c_smbus_write_byte_data(ad5280_client, 0x00, vcomm_value);
- if (nr)
- pr_err("i2c_smbus_write_byte_data fail: %d\n", nr);
-}
-
-static int ad5280_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- int ret;
- if (!i2c_check_functionality(client->adapter,
- I2C_FUNC_SMBUS_BYTE_DATA)) {
- dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
- return -EIO;
- }
-
- ret = i2c_smbus_write_byte_data(client, 0x00, vcomm_value);
- if (ret) {
- dev_err(&client->dev, "write fail: %d\n", ret);
- return ret;
- }
-
- ad5280_client = client;
-
- return 0;
-}
-
-static int ad5280_remove(struct i2c_client *client)
-{
- ad5280_client = NULL;
- return 0;
-}
-
-static const struct i2c_device_id ad5280_id[] = {
- {"bf537-lq035-ad5280", 0},
- {}
-};
-
-MODULE_DEVICE_TABLE(i2c, ad5280_id);
-
-static struct i2c_driver ad5280_driver = {
- .driver = {
- .name = "bf537-lq035-ad5280",
- },
- .probe = ad5280_probe,
- .remove = ad5280_remove,
- .id_table = ad5280_id,
-};
-
-#ifdef CONFIG_PNAV10
-#define MOD GPIO_PH13
-
-#define bfin_write_TIMER_LP_CONFIG bfin_write_TIMER0_CONFIG
-#define bfin_write_TIMER_LP_WIDTH bfin_write_TIMER0_WIDTH
-#define bfin_write_TIMER_LP_PERIOD bfin_write_TIMER0_PERIOD
-#define bfin_read_TIMER_LP_COUNTER bfin_read_TIMER0_COUNTER
-#define TIMDIS_LP TIMDIS0
-#define TIMEN_LP TIMEN0
-
-#define bfin_write_TIMER_SPS_CONFIG bfin_write_TIMER1_CONFIG
-#define bfin_write_TIMER_SPS_WIDTH bfin_write_TIMER1_WIDTH
-#define bfin_write_TIMER_SPS_PERIOD bfin_write_TIMER1_PERIOD
-#define TIMDIS_SPS TIMDIS1
-#define TIMEN_SPS TIMEN1
-
-#define bfin_write_TIMER_SP_CONFIG bfin_write_TIMER5_CONFIG
-#define bfin_write_TIMER_SP_WIDTH bfin_write_TIMER5_WIDTH
-#define bfin_write_TIMER_SP_PERIOD bfin_write_TIMER5_PERIOD
-#define TIMDIS_SP TIMDIS5
-#define TIMEN_SP TIMEN5
-
-#define bfin_write_TIMER_PS_CLS_CONFIG bfin_write_TIMER2_CONFIG
-#define bfin_write_TIMER_PS_CLS_WIDTH bfin_write_TIMER2_WIDTH
-#define bfin_write_TIMER_PS_CLS_PERIOD bfin_write_TIMER2_PERIOD
-#define TIMDIS_PS_CLS TIMDIS2
-#define TIMEN_PS_CLS TIMEN2
-
-#define bfin_write_TIMER_REV_CONFIG bfin_write_TIMER3_CONFIG
-#define bfin_write_TIMER_REV_WIDTH bfin_write_TIMER3_WIDTH
-#define bfin_write_TIMER_REV_PERIOD bfin_write_TIMER3_PERIOD
-#define TIMDIS_REV TIMDIS3
-#define TIMEN_REV TIMEN3
-#define bfin_read_TIMER_REV_COUNTER bfin_read_TIMER3_COUNTER
-
-#define FREQ_PPI_CLK (5*1024*1024) /* PPI_CLK 5MHz */
-
-#define TIMERS {P_TMR0, P_TMR1, P_TMR2, P_TMR3, P_TMR5, 0}
-
-#else
-
-#define UD GPIO_PF13 /* Up / Down */
-#define MOD GPIO_PF10
-#define LBR GPIO_PF14 /* Left Right */
-
-#define bfin_write_TIMER_LP_CONFIG bfin_write_TIMER6_CONFIG
-#define bfin_write_TIMER_LP_WIDTH bfin_write_TIMER6_WIDTH
-#define bfin_write_TIMER_LP_PERIOD bfin_write_TIMER6_PERIOD
-#define bfin_read_TIMER_LP_COUNTER bfin_read_TIMER6_COUNTER
-#define TIMDIS_LP TIMDIS6
-#define TIMEN_LP TIMEN6
-
-#define bfin_write_TIMER_SPS_CONFIG bfin_write_TIMER1_CONFIG
-#define bfin_write_TIMER_SPS_WIDTH bfin_write_TIMER1_WIDTH
-#define bfin_write_TIMER_SPS_PERIOD bfin_write_TIMER1_PERIOD
-#define TIMDIS_SPS TIMDIS1
-#define TIMEN_SPS TIMEN1
-
-#define bfin_write_TIMER_SP_CONFIG bfin_write_TIMER0_CONFIG
-#define bfin_write_TIMER_SP_WIDTH bfin_write_TIMER0_WIDTH
-#define bfin_write_TIMER_SP_PERIOD bfin_write_TIMER0_PERIOD
-#define TIMDIS_SP TIMDIS0
-#define TIMEN_SP TIMEN0
-
-#define bfin_write_TIMER_PS_CLS_CONFIG bfin_write_TIMER7_CONFIG
-#define bfin_write_TIMER_PS_CLS_WIDTH bfin_write_TIMER7_WIDTH
-#define bfin_write_TIMER_PS_CLS_PERIOD bfin_write_TIMER7_PERIOD
-#define TIMDIS_PS_CLS TIMDIS7
-#define TIMEN_PS_CLS TIMEN7
-
-#define bfin_write_TIMER_REV_CONFIG bfin_write_TIMER5_CONFIG
-#define bfin_write_TIMER_REV_WIDTH bfin_write_TIMER5_WIDTH
-#define bfin_write_TIMER_REV_PERIOD bfin_write_TIMER5_PERIOD
-#define TIMDIS_REV TIMDIS5
-#define TIMEN_REV TIMEN5
-#define bfin_read_TIMER_REV_COUNTER bfin_read_TIMER5_COUNTER
-
-#define FREQ_PPI_CLK (6*1000*1000) /* PPI_CLK 6MHz */
-#define TIMERS {P_TMR0, P_TMR1, P_TMR5, P_TMR6, P_TMR7, 0}
-
-#endif
-
-#define LCD_X_RES 240 /* Horizontal Resolution */
-#define LCD_Y_RES 320 /* Vertical Resolution */
-
-#define LCD_BBP 16 /* Bit Per Pixel */
-
-/* the LCD and the DMA start counting differently;
- * since one starts at 0 and the other starts at 1,
- * we have a difference of 1 between START_LINES
- * and U_LINES.
- */
-#define START_LINES 8 /* lines for field flyback or field blanking signal */
-#define U_LINES 9 /* number of undisplayed blanking lines */
-
-#define FRAMES_PER_SEC (60)
-
-#define DCLKS_PER_FRAME (FREQ_PPI_CLK/FRAMES_PER_SEC)
-#define DCLKS_PER_LINE (DCLKS_PER_FRAME/(LCD_Y_RES+U_LINES))
-
-#define PPI_CONFIG_VALUE (PORT_DIR|XFR_TYPE|DLEN_16|POLS)
-#define PPI_DELAY_VALUE (0)
-#define TIMER_CONFIG (PWM_OUT|PERIOD_CNT|TIN_SEL|CLK_SEL)
-
-#define ACTIVE_VIDEO_MEM_OFFSET (LCD_X_RES*START_LINES*(LCD_BBP/8))
-#define ACTIVE_VIDEO_MEM_SIZE (LCD_Y_RES*LCD_X_RES*(LCD_BBP/8))
-#define TOTAL_VIDEO_MEM_SIZE ((LCD_Y_RES+U_LINES)*LCD_X_RES*(LCD_BBP/8))
-#define TOTAL_DMA_DESC_SIZE (2 * sizeof(u32) * (LCD_Y_RES + U_LINES))
-
-static void start_timers(void) /* CHECK with HW */
-{
- unsigned long flags;
-
- local_irq_save(flags);
-
- bfin_write_TIMER_ENABLE(TIMEN_REV);
- SSYNC();
-
- while (bfin_read_TIMER_REV_COUNTER() <= 11)
- continue;
- bfin_write_TIMER_ENABLE(TIMEN_LP);
- SSYNC();
-
- while (bfin_read_TIMER_LP_COUNTER() < 3)
- continue;
- bfin_write_TIMER_ENABLE(TIMEN_SP|TIMEN_SPS|TIMEN_PS_CLS);
- SSYNC();
- t_conf_done = 1;
- local_irq_restore(flags);
-}
-
-static void config_timers(void)
-{
- /* Stop timers */
- bfin_write_TIMER_DISABLE(TIMDIS_SP|TIMDIS_SPS|TIMDIS_REV|
- TIMDIS_LP|TIMDIS_PS_CLS);
- SSYNC();
-
- /* LP, timer 6 */
- bfin_write_TIMER_LP_CONFIG(TIMER_CONFIG|PULSE_HI);
- bfin_write_TIMER_LP_WIDTH(1);
-
- bfin_write_TIMER_LP_PERIOD(DCLKS_PER_LINE);
- SSYNC();
-
- /* SPS, timer 1 */
- bfin_write_TIMER_SPS_CONFIG(TIMER_CONFIG|PULSE_HI);
- bfin_write_TIMER_SPS_WIDTH(DCLKS_PER_LINE*2);
- bfin_write_TIMER_SPS_PERIOD((DCLKS_PER_LINE * (LCD_Y_RES+U_LINES)));
- SSYNC();
-
- /* SP, timer 0 */
- bfin_write_TIMER_SP_CONFIG(TIMER_CONFIG|PULSE_HI);
- bfin_write_TIMER_SP_WIDTH(1);
- bfin_write_TIMER_SP_PERIOD(DCLKS_PER_LINE);
- SSYNC();
-
- /* PS & CLS, timer 7 */
- bfin_write_TIMER_PS_CLS_CONFIG(TIMER_CONFIG);
- bfin_write_TIMER_PS_CLS_WIDTH(LCD_X_RES + START_LINES);
- bfin_write_TIMER_PS_CLS_PERIOD(DCLKS_PER_LINE);
-
- SSYNC();
-
-#ifdef NO_BL
- /* REV, timer 5 */
- bfin_write_TIMER_REV_CONFIG(TIMER_CONFIG|PULSE_HI);
-
- bfin_write_TIMER_REV_WIDTH(DCLKS_PER_LINE);
- bfin_write_TIMER_REV_PERIOD(DCLKS_PER_LINE*2);
-
- SSYNC();
-#endif
-}
-
-static void config_ppi(void)
-{
- bfin_write_PPI_DELAY(PPI_DELAY_VALUE);
- bfin_write_PPI_COUNT(LCD_X_RES-1);
- /* 0x10 -> PORT_CFG -> 2 or 3 frame syncs */
- bfin_write_PPI_CONTROL((PPI_CONFIG_VALUE|0x10) & (~POLS));
-}
-
-static int config_dma(void)
-{
- u32 i;
-
- if (landscape) {
-
- for (i = 0; i < U_LINES; ++i) {
- /* blanking lines point to first line of fb_buffer */
- dma_desc_table[2*i] = (unsigned long)&dma_desc_table[2*i+2];
- dma_desc_table[2*i+1] = (unsigned long)fb_buffer;
- }
-
- for (i = U_LINES; i < U_LINES + LCD_Y_RES; ++i) {
- /* visible lines */
- dma_desc_table[2*i] = (unsigned long)&dma_desc_table[2*i+2];
- dma_desc_table[2*i+1] = (unsigned long)fb_buffer +
- (LCD_Y_RES+U_LINES-1-i)*2;
- }
-
- /* last descriptor points to first */
- dma_desc_table[2*(LCD_Y_RES+U_LINES-1)] = (unsigned long)&dma_desc_table[0];
-
- set_dma_x_count(CH_PPI, LCD_X_RES);
- set_dma_x_modify(CH_PPI, LCD_Y_RES * (LCD_BBP / 8));
- set_dma_y_count(CH_PPI, 0);
- set_dma_y_modify(CH_PPI, 0);
- set_dma_next_desc_addr(CH_PPI, (void *)dma_desc_table[0]);
- set_dma_config(CH_PPI, DMAFLOW_LARGE | NDSIZE_4 | WDSIZE_16);
-
- } else {
-
- set_dma_config(CH_PPI, set_bfin_dma_config(DIR_READ,
- DMA_FLOW_AUTO,
- INTR_DISABLE,
- DIMENSION_2D,
- DATA_SIZE_16,
- DMA_NOSYNC_KEEP_DMA_BUF));
- set_dma_x_count(CH_PPI, LCD_X_RES);
- set_dma_x_modify(CH_PPI, LCD_BBP / 8);
- set_dma_y_count(CH_PPI, LCD_Y_RES+U_LINES);
- set_dma_y_modify(CH_PPI, LCD_BBP / 8);
- set_dma_start_addr(CH_PPI, (unsigned long) fb_buffer);
- }
-
- return 0;
-}
-
-static int request_ports(void)
-{
- u16 tmr_req[] = TIMERS;
-
- /*
- UD: PF13
- MOD: PF10
- LBR: PF14
- PPI_CLK: PF15
- */
-
- if (peripheral_request_list(ppi_pins, KBUILD_MODNAME)) {
- pr_err("requesting PPI peripheral failed\n");
- return -EBUSY;
- }
-
- if (peripheral_request_list(tmr_req, KBUILD_MODNAME)) {
- peripheral_free_list(ppi_pins);
- pr_err("requesting timer peripheral failed\n");
- return -EBUSY;
- }
-
-#if (defined(UD) && defined(LBR))
- if (gpio_request_one(UD, GPIOF_OUT_INIT_LOW, KBUILD_MODNAME)) {
- pr_err("requesting GPIO %d failed\n", UD);
- return -EBUSY;
- }
-
- if (gpio_request_one(LBR, GPIOF_OUT_INIT_HIGH, KBUILD_MODNAME)) {
- pr_err("requesting GPIO %d failed\n", LBR);
- gpio_free(UD);
- return -EBUSY;
- }
-#endif
-
- if (gpio_request_one(MOD, GPIOF_OUT_INIT_HIGH, KBUILD_MODNAME)) {
- pr_err("requesting GPIO %d failed\n", MOD);
-#if (defined(UD) && defined(LBR))
- gpio_free(LBR);
- gpio_free(UD);
-#endif
- return -EBUSY;
- }
-
- SSYNC();
- return 0;
-}
-
-static void free_ports(void)
-{
- u16 tmr_req[] = TIMERS;
-
- peripheral_free_list(ppi_pins);
- peripheral_free_list(tmr_req);
-
-#if defined(UD) && defined(LBR)
- gpio_free(LBR);
- gpio_free(UD);
-#endif
- gpio_free(MOD);
-}
-
-static struct fb_info bfin_lq035_fb;
-
-static struct fb_var_screeninfo bfin_lq035_fb_defined = {
- .bits_per_pixel = LCD_BBP,
- .activate = FB_ACTIVATE_TEST,
- .xres = LCD_X_RES, /*default portrait mode RGB*/
- .yres = LCD_Y_RES,
- .xres_virtual = LCD_X_RES,
- .yres_virtual = LCD_Y_RES,
- .height = -1,
- .width = -1,
- .left_margin = 0,
- .right_margin = 0,
- .upper_margin = 0,
- .lower_margin = 0,
- .red = {11, 5, 0},
- .green = {5, 6, 0},
- .blue = {0, 5, 0},
- .transp = {0, 0, 0},
-};
-
-static struct fb_fix_screeninfo bfin_lq035_fb_fix = {
- .id = KBUILD_MODNAME,
- .smem_len = ACTIVE_VIDEO_MEM_SIZE,
- .type = FB_TYPE_PACKED_PIXELS,
- .visual = FB_VISUAL_TRUECOLOR,
- .xpanstep = 0,
- .ypanstep = 0,
- .line_length = LCD_X_RES*(LCD_BBP/8),
- .accel = FB_ACCEL_NONE,
-};
-
-
-static int bfin_lq035_fb_open(struct fb_info *info, int user)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&bfin_lq035_lock, flags);
- lq035_open_cnt++;
- spin_unlock_irqrestore(&bfin_lq035_lock, flags);
-
- if (lq035_open_cnt <= 1) {
- bfin_write_PPI_CONTROL(0);
- SSYNC();
-
- set_vcomm();
- config_dma();
- config_ppi();
-
- /* start dma */
- enable_dma(CH_PPI);
- SSYNC();
- bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() | PORT_EN);
- SSYNC();
-
- if (!t_conf_done) {
- config_timers();
- start_timers();
- }
- /* gpio_set_value(MOD,1); */
- }
-
- return 0;
-}
-
-static int bfin_lq035_fb_release(struct fb_info *info, int user)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&bfin_lq035_lock, flags);
- lq035_open_cnt--;
- spin_unlock_irqrestore(&bfin_lq035_lock, flags);
-
-
- if (lq035_open_cnt <= 0) {
-
- bfin_write_PPI_CONTROL(0);
- SSYNC();
-
- disable_dma(CH_PPI);
- }
-
- return 0;
-}
-
-
-static int bfin_lq035_fb_check_var(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- switch (var->bits_per_pixel) {
- case 16:/* DIRECTCOLOUR, 64k */
- var->red.offset = info->var.red.offset;
- var->green.offset = info->var.green.offset;
- var->blue.offset = info->var.blue.offset;
- var->red.length = info->var.red.length;
- var->green.length = info->var.green.length;
- var->blue.length = info->var.blue.length;
- var->transp.offset = 0;
- var->transp.length = 0;
- var->transp.msb_right = 0;
- var->red.msb_right = 0;
- var->green.msb_right = 0;
- var->blue.msb_right = 0;
- break;
- default:
- pr_debug("%s: depth not supported: %u BPP\n", __func__,
- var->bits_per_pixel);
- return -EINVAL;
- }
-
- if (info->var.xres != var->xres ||
- info->var.yres != var->yres ||
- info->var.xres_virtual != var->xres_virtual ||
- info->var.yres_virtual != var->yres_virtual) {
- pr_debug("%s: Resolution not supported: X%u x Y%u\n",
- __func__, var->xres, var->yres);
- return -EINVAL;
- }
-
- /*
- * Memory limit
- */
-
- if ((info->fix.line_length * var->yres_virtual) > info->fix.smem_len) {
- pr_debug("%s: Memory Limit requested yres_virtual = %u\n",
- __func__, var->yres_virtual);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-static int bfin_lq035_fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
-{
- if (nocursor)
- return 0;
- else
- return -EINVAL; /* just to force soft_cursor() call */
-}
-
-static int bfin_lq035_fb_setcolreg(u_int regno, u_int red, u_int green,
- u_int blue, u_int transp,
- struct fb_info *info)
-{
- if (regno >= NBR_PALETTE)
- return -EINVAL;
-
- if (info->var.grayscale)
- /* grayscale = 0.30*R + 0.59*G + 0.11*B */
- red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
-
- if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
-
- u32 value;
- /* Place color in the pseudopalette */
- if (regno > 16)
- return -EINVAL;
-
- red >>= (16 - info->var.red.length);
- green >>= (16 - info->var.green.length);
- blue >>= (16 - info->var.blue.length);
-
- value = (red << info->var.red.offset) |
- (green << info->var.green.offset)|
- (blue << info->var.blue.offset);
- value &= 0xFFFF;
-
- ((u32 *) (info->pseudo_palette))[regno] = value;
-
- }
-
- return 0;
-}
-
-static struct fb_ops bfin_lq035_fb_ops = {
- .owner = THIS_MODULE,
- .fb_open = bfin_lq035_fb_open,
- .fb_release = bfin_lq035_fb_release,
- .fb_check_var = bfin_lq035_fb_check_var,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
- .fb_cursor = bfin_lq035_fb_cursor,
- .fb_setcolreg = bfin_lq035_fb_setcolreg,
-};
-
-static int bl_get_brightness(struct backlight_device *bd)
-{
- return current_brightness;
-}
-
-static const struct backlight_ops bfin_lq035fb_bl_ops = {
- .get_brightness = bl_get_brightness,
-};
-
-static struct backlight_device *bl_dev;
-
-static int bfin_lcd_get_power(struct lcd_device *dev)
-{
- return 0;
-}
-
-static int bfin_lcd_set_power(struct lcd_device *dev, int power)
-{
- return 0;
-}
-
-static int bfin_lcd_get_contrast(struct lcd_device *dev)
-{
- return (int)vcomm_value;
-}
-
-static int bfin_lcd_set_contrast(struct lcd_device *dev, int contrast)
-{
- if (contrast > 255)
- contrast = 255;
- if (contrast < 0)
- contrast = 0;
-
- vcomm_value = (unsigned char)contrast;
- set_vcomm();
- return 0;
-}
-
-static int bfin_lcd_check_fb(struct lcd_device *lcd, struct fb_info *fi)
-{
- if (!fi || (fi == &bfin_lq035_fb))
- return 1;
- return 0;
-}
-
-static struct lcd_ops bfin_lcd_ops = {
- .get_power = bfin_lcd_get_power,
- .set_power = bfin_lcd_set_power,
- .get_contrast = bfin_lcd_get_contrast,
- .set_contrast = bfin_lcd_set_contrast,
- .check_fb = bfin_lcd_check_fb,
-};
-
-static struct lcd_device *lcd_dev;
-
-static int bfin_lq035_probe(struct platform_device *pdev)
-{
- struct backlight_properties props;
- dma_addr_t dma_handle;
- int ret;
-
- if (request_dma(CH_PPI, KBUILD_MODNAME)) {
- pr_err("couldn't request PPI DMA\n");
- return -EFAULT;
- }
-
- if (request_ports()) {
- pr_err("couldn't request gpio port\n");
- ret = -EFAULT;
- goto out_ports;
- }
-
- fb_buffer = dma_alloc_coherent(NULL, TOTAL_VIDEO_MEM_SIZE,
- &dma_handle, GFP_KERNEL);
- if (fb_buffer == NULL) {
- pr_err("couldn't allocate dma buffer\n");
- ret = -ENOMEM;
- goto out_dma_coherent;
- }
-
- if (L1_DATA_A_LENGTH)
- dma_desc_table = l1_data_sram_zalloc(TOTAL_DMA_DESC_SIZE);
- else
- dma_desc_table = dma_alloc_coherent(NULL, TOTAL_DMA_DESC_SIZE,
- &dma_handle, 0);
-
- if (dma_desc_table == NULL) {
- pr_err("couldn't allocate dma descriptor\n");
- ret = -ENOMEM;
- goto out_table;
- }
-
- bfin_lq035_fb.screen_base = (void *)fb_buffer;
- bfin_lq035_fb_fix.smem_start = (int)fb_buffer;
- if (landscape) {
- bfin_lq035_fb_defined.xres = LCD_Y_RES;
- bfin_lq035_fb_defined.yres = LCD_X_RES;
- bfin_lq035_fb_defined.xres_virtual = LCD_Y_RES;
- bfin_lq035_fb_defined.yres_virtual = LCD_X_RES;
-
- bfin_lq035_fb_fix.line_length = LCD_Y_RES*(LCD_BBP/8);
- } else {
- bfin_lq035_fb.screen_base += ACTIVE_VIDEO_MEM_OFFSET;
- bfin_lq035_fb_fix.smem_start += ACTIVE_VIDEO_MEM_OFFSET;
- }
-
- bfin_lq035_fb_defined.green.msb_right = 0;
- bfin_lq035_fb_defined.red.msb_right = 0;
- bfin_lq035_fb_defined.blue.msb_right = 0;
- bfin_lq035_fb_defined.green.offset = 5;
- bfin_lq035_fb_defined.green.length = 6;
- bfin_lq035_fb_defined.red.length = 5;
- bfin_lq035_fb_defined.blue.length = 5;
-
- if (bgr) {
- bfin_lq035_fb_defined.red.offset = 0;
- bfin_lq035_fb_defined.blue.offset = 11;
- } else {
- bfin_lq035_fb_defined.red.offset = 11;
- bfin_lq035_fb_defined.blue.offset = 0;
- }
-
- bfin_lq035_fb.fbops = &bfin_lq035_fb_ops;
- bfin_lq035_fb.var = bfin_lq035_fb_defined;
-
- bfin_lq035_fb.fix = bfin_lq035_fb_fix;
- bfin_lq035_fb.flags = FBINFO_DEFAULT;
-
-
- bfin_lq035_fb.pseudo_palette = devm_kzalloc(&pdev->dev,
- sizeof(u32) * 16,
- GFP_KERNEL);
- if (bfin_lq035_fb.pseudo_palette == NULL) {
- pr_err("failed to allocate pseudo_palette\n");
- ret = -ENOMEM;
- goto out_table;
- }
-
- if (fb_alloc_cmap(&bfin_lq035_fb.cmap, NBR_PALETTE, 0) < 0) {
- pr_err("failed to allocate colormap (%d entries)\n",
- NBR_PALETTE);
- ret = -EFAULT;
- goto out_table;
- }
-
- if (register_framebuffer(&bfin_lq035_fb) < 0) {
- pr_err("unable to register framebuffer\n");
- ret = -EINVAL;
- goto out_reg;
- }
-
- i2c_add_driver(&ad5280_driver);
-
- memset(&props, 0, sizeof(props));
- props.type = BACKLIGHT_RAW;
- props.max_brightness = MAX_BRIGHENESS;
- bl_dev = backlight_device_register("bf537-bl", NULL, NULL,
- &bfin_lq035fb_bl_ops, &props);
-
- lcd_dev = lcd_device_register(KBUILD_MODNAME, &pdev->dev, NULL,
- &bfin_lcd_ops);
- if (IS_ERR(lcd_dev)) {
- pr_err("unable to register lcd\n");
- ret = PTR_ERR(lcd_dev);
- goto out_lcd;
- }
- lcd_dev->props.max_contrast = 255,
-
- pr_info("initialized");
-
- return 0;
-out_lcd:
- unregister_framebuffer(&bfin_lq035_fb);
-out_reg:
- fb_dealloc_cmap(&bfin_lq035_fb.cmap);
-out_table:
- dma_free_coherent(NULL, TOTAL_VIDEO_MEM_SIZE, fb_buffer, 0);
- fb_buffer = NULL;
-out_dma_coherent:
- free_ports();
-out_ports:
- free_dma(CH_PPI);
- return ret;
-}
-
-static int bfin_lq035_remove(struct platform_device *pdev)
-{
- if (fb_buffer != NULL)
- dma_free_coherent(NULL, TOTAL_VIDEO_MEM_SIZE, fb_buffer, 0);
-
- if (L1_DATA_A_LENGTH)
- l1_data_sram_free(dma_desc_table);
- else
- dma_free_coherent(NULL, TOTAL_DMA_DESC_SIZE, NULL, 0);
-
- bfin_write_TIMER_DISABLE(TIMEN_SP|TIMEN_SPS|TIMEN_PS_CLS|
- TIMEN_LP|TIMEN_REV);
- t_conf_done = 0;
-
- free_dma(CH_PPI);
-
-
- fb_dealloc_cmap(&bfin_lq035_fb.cmap);
-
-
- lcd_device_unregister(lcd_dev);
- backlight_device_unregister(bl_dev);
-
- unregister_framebuffer(&bfin_lq035_fb);
- i2c_del_driver(&ad5280_driver);
-
- free_ports();
-
- pr_info("unregistered LCD driver\n");
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int bfin_lq035_suspend(struct platform_device *pdev, pm_message_t state)
-{
- if (lq035_open_cnt > 0) {
- bfin_write_PPI_CONTROL(0);
- SSYNC();
- disable_dma(CH_PPI);
- }
-
- return 0;
-}
-
-static int bfin_lq035_resume(struct platform_device *pdev)
-{
- if (lq035_open_cnt > 0) {
- bfin_write_PPI_CONTROL(0);
- SSYNC();
-
- config_dma();
- config_ppi();
-
- enable_dma(CH_PPI);
- bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() | PORT_EN);
- SSYNC();
-
- config_timers();
- start_timers();
- } else {
- t_conf_done = 0;
- }
-
- return 0;
-}
-#else
-# define bfin_lq035_suspend NULL
-# define bfin_lq035_resume NULL
-#endif
-
-static struct platform_driver bfin_lq035_driver = {
- .probe = bfin_lq035_probe,
- .remove = bfin_lq035_remove,
- .suspend = bfin_lq035_suspend,
- .resume = bfin_lq035_resume,
- .driver = {
- .name = KBUILD_MODNAME,
- },
-};
-
-static int __init bfin_lq035_driver_init(void)
-{
- request_module("i2c-bfin-twi");
- return platform_driver_register(&bfin_lq035_driver);
-}
-module_init(bfin_lq035_driver_init);
-
-static void __exit bfin_lq035_driver_cleanup(void)
-{
- platform_driver_unregister(&bfin_lq035_driver);
-}
-module_exit(bfin_lq035_driver_cleanup);
-
-MODULE_DESCRIPTION("SHARP LQ035Q7DB03 TFT LCD Driver");
-MODULE_LICENSE("GPL");