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Commit 745f8c14 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
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video: fbdev: remove unused auo_k190xfb drivers 

auo_k1900fb and auo_k1901fb drivers have been introduced six
years ago by following commits:

commit 2c8304d3 ("video: auo_k190x: add code shared by controller drivers")
commit 96b1d500 ("video: auo_k190x: add driver for AUO-K1900 variant")
commit 53027cdf ("video: auo_k190x: add driver for AUO-K1901 variant")

They never had any in-kernel user so just remove them (since
they are platform drivers they need corresponding platform
devices to be registered by kernel and it has never happened).
Reviewed-by: default avatarHeiko Stuebner <heiko@sntech.de>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
parent 85d108de
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drivers/video/fbdev/Kconfig
View file @ 745f8c14
......@@ -2253,39 +2253,6 @@ config FB_BROADSHEET
and could also have been called by other names when coupled with
a bridge adapter.
config FB_AUO_K190X
tristate "AUO-K190X EPD controller support"
depends on FB
select FB_SYS_FILLRECT
select FB_SYS_COPYAREA
select FB_SYS_IMAGEBLIT
select FB_SYS_FOPS
select FB_DEFERRED_IO
help
Provides support for epaper controllers from the K190X series
of AUO. These controllers can be used to drive epaper displays
from Sipix.
This option enables the common support, shared by the individual
controller drivers. You will also have to enable the driver
for the controller type used in your device.
config FB_AUO_K1900
tristate "AUO-K1900 EPD controller support"
depends on FB && FB_AUO_K190X
help
This driver implements support for the AUO K1900 epd-controller.
This controller can drive Sipix epaper displays but can only do
serial updates, reducing the number of possible frames per second.
config FB_AUO_K1901
tristate "AUO-K1901 EPD controller support"
depends on FB && FB_AUO_K190X
help
This driver implements support for the AUO K1901 epd-controller.
This controller can drive Sipix epaper displays and supports
concurrent updates, making higher frames per second possible.
config FB_JZ4740
tristate "JZ4740 LCD framebuffer support"
depends on FB && MACH_JZ4740
......
drivers/video/fbdev/Makefile
View file @ 745f8c14
......@@ -100,9 +100,6 @@ obj-$(CONFIG_FB_PMAGB_B) += pmagb-b-fb.o
obj-$(CONFIG_FB_MAXINE) += maxinefb.o
obj-$(CONFIG_FB_METRONOME) += metronomefb.o
obj-$(CONFIG_FB_BROADSHEET) += broadsheetfb.o
obj-$(CONFIG_FB_AUO_K190X) += auo_k190x.o
obj-$(CONFIG_FB_AUO_K1900) += auo_k1900fb.o
obj-$(CONFIG_FB_AUO_K1901) += auo_k1901fb.o
obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o
obj-$(CONFIG_FB_SH7760) += sh7760fb.o
obj-$(CONFIG_FB_IMX) += imxfb.o
......
drivers/video/fbdev/auo_k1900fb.c deleted 100644 → 0
View file @ 85d108de
/*
* auok190xfb.c -- FB driver for AUO-K1900 controllers
*
* Copyright (C) 2011, 2012 Heiko Stuebner <heiko@sntech.de>
*
* based on broadsheetfb.c
*
* Copyright (C) 2008, Jaya Kumar
*
* 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.
*
* Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
*
* This driver is written to be used with the AUO-K1900 display controller.
*
* It is intended to be architecture independent. A board specific driver
* must be used to perform all the physical IO interactions.
*
* The controller supports different update modes:
* mode0+1 16 step gray (4bit)
* mode2 4 step gray (2bit) - FIXME: add strange refresh
* mode3 2 step gray (1bit) - FIXME: add strange refresh
* mode4 handwriting mode (strange behaviour)
* mode5 automatic selection of update mode
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/list.h>
#include <linux/firmware.h>
#include <linux/gpio.h>
#include <linux/pm_runtime.h>
#include <video/auo_k190xfb.h>
#include "auo_k190x.h"
/*
* AUO-K1900 specific commands
*/
#define AUOK1900_CMD_PARTIALDISP 0x1001
#define AUOK1900_CMD_ROTATION 0x1006
#define AUOK1900_CMD_LUT_STOP 0x1009
#define AUOK1900_INIT_TEMP_AVERAGE (1 << 13)
#define AUOK1900_INIT_ROTATE(_x) ((_x & 0x3) << 10)
#define AUOK1900_INIT_RESOLUTION(_res) ((_res & 0x7) << 2)
static void auok1900_init(struct auok190xfb_par *par)
{
struct device *dev = par->info->device;
struct auok190x_board *board = par->board;
u16 init_param = 0;
pm_runtime_get_sync(dev);
init_param |= AUOK1900_INIT_TEMP_AVERAGE;
init_param |= AUOK1900_INIT_ROTATE(par->rotation);
init_param |= AUOK190X_INIT_INVERSE_WHITE;
init_param |= AUOK190X_INIT_FORMAT0;
init_param |= AUOK1900_INIT_RESOLUTION(par->resolution);
init_param |= AUOK190X_INIT_SHIFT_RIGHT;
auok190x_send_cmdargs(par, AUOK190X_CMD_INIT, 1, &init_param);
/* let the controller finish */
board->wait_for_rdy(par);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
static void auok1900_update_region(struct auok190xfb_par *par, int mode,
u16 y1, u16 y2)
{
struct device *dev = par->info->device;
unsigned char *buf = (unsigned char *)par->info->screen_base;
int xres = par->info->var.xres;
int line_length = par->info->fix.line_length;
u16 args[4];
pm_runtime_get_sync(dev);
mutex_lock(&(par->io_lock));
/* y1 and y2 must be a multiple of 2 so drop the lowest bit */
y1 &= 0xfffe;
y2 &= 0xfffe;
dev_dbg(dev, "update (x,y,w,h,mode)=(%d,%d,%d,%d,%d)\n",
1, y1+1, xres, y2-y1, mode);
/* to FIX handle different partial update modes */
args[0] = mode | 1;
args[1] = y1 + 1;
args[2] = xres;
args[3] = y2 - y1;
buf += y1 * line_length;
auok190x_send_cmdargs_pixels(par, AUOK1900_CMD_PARTIALDISP, 4, args,
((y2 - y1) * line_length)/2, (u16 *) buf);
auok190x_send_command(par, AUOK190X_CMD_DATA_STOP);
par->update_cnt++;
mutex_unlock(&(par->io_lock));
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
static void auok1900fb_dpy_update_pages(struct auok190xfb_par *par,
u16 y1, u16 y2)
{
int mode;
if (par->update_mode < 0) {
mode = AUOK190X_UPDATE_MODE(1);
par->last_mode = -1;
} else {
mode = AUOK190X_UPDATE_MODE(par->update_mode);
par->last_mode = par->update_mode;
}
if (par->flash)
mode |= AUOK190X_UPDATE_NONFLASH;
auok1900_update_region(par, mode, y1, y2);
}
static void auok1900fb_dpy_update(struct auok190xfb_par *par)
{
int mode;
if (par->update_mode < 0) {
mode = AUOK190X_UPDATE_MODE(0);
par->last_mode = -1;
} else {
mode = AUOK190X_UPDATE_MODE(par->update_mode);
par->last_mode = par->update_mode;
}
if (par->flash)
mode |= AUOK190X_UPDATE_NONFLASH;
auok1900_update_region(par, mode, 0, par->info->var.yres);
par->update_cnt = 0;
}
static bool auok1900fb_need_refresh(struct auok190xfb_par *par)
{
return (par->update_cnt > 10);
}
static int auok1900fb_probe(struct platform_device *pdev)
{
struct auok190x_init_data init;
struct auok190x_board *board;
/* pick up board specific routines */
board = pdev->dev.platform_data;
if (!board)
return -EINVAL;
/* fill temporary init struct for common init */
init.id = "auo_k1900fb";
init.board = board;
init.update_partial = auok1900fb_dpy_update_pages;
init.update_all = auok1900fb_dpy_update;
init.need_refresh = auok1900fb_need_refresh;
init.init = auok1900_init;
return auok190x_common_probe(pdev, &init);
}
static int auok1900fb_remove(struct platform_device *pdev)
{
return auok190x_common_remove(pdev);
}
static struct platform_driver auok1900fb_driver = {
.probe = auok1900fb_probe,
.remove = auok1900fb_remove,
.driver = {
.name = "auo_k1900fb",
.pm = &auok190x_pm,
},
};
module_platform_driver(auok1900fb_driver);
MODULE_DESCRIPTION("framebuffer driver for the AUO-K1900 EPD controller");
MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
MODULE_LICENSE("GPL");
drivers/video/fbdev/auo_k1901fb.c deleted 100644 → 0
View file @ 85d108de
/*
* auok190xfb.c -- FB driver for AUO-K1901 controllers
*
* Copyright (C) 2011, 2012 Heiko Stuebner <heiko@sntech.de>
*
* based on broadsheetfb.c
*
* Copyright (C) 2008, Jaya Kumar
*
* 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.
*
* Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
*
* This driver is written to be used with the AUO-K1901 display controller.
*
* It is intended to be architecture independent. A board specific driver
* must be used to perform all the physical IO interactions.
*
* The controller supports different update modes:
* mode0+1 16 step gray (4bit)
* mode2+3 4 step gray (2bit)
* mode4+5 2 step gray (1bit)
* - mode4 is described as "without LUT"
* mode7 automatic selection of update mode
*
* The most interesting difference to the K1900 is the ability to do screen
* updates in an asynchronous fashion. Where the K1900 needs to wait for the
* current update to complete, the K1901 can process later updates already.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/list.h>
#include <linux/firmware.h>
#include <linux/gpio.h>
#include <linux/pm_runtime.h>
#include <video/auo_k190xfb.h>
#include "auo_k190x.h"
/*
* AUO-K1901 specific commands
*/
#define AUOK1901_CMD_LUT_INTERFACE 0x0005
#define AUOK1901_CMD_DMA_START 0x1001
#define AUOK1901_CMD_CURSOR_START 0x1007
#define AUOK1901_CMD_CURSOR_STOP AUOK190X_CMD_DATA_STOP
#define AUOK1901_CMD_DDMA_START 0x1009
#define AUOK1901_INIT_GATE_PULSE_LOW (0 << 14)
#define AUOK1901_INIT_GATE_PULSE_HIGH (1 << 14)
#define AUOK1901_INIT_SINGLE_GATE (0 << 13)
#define AUOK1901_INIT_DOUBLE_GATE (1 << 13)
/* Bits to pixels
* Mode 15-12 11-8 7-4 3-0
* format2 2 T 1 T
* format3 1 T 2 T
* format4 T 2 T 1
* format5 T 1 T 2
*
* halftone modes:
* format6 2 2 1 1
* format7 1 1 2 2
*/
#define AUOK1901_INIT_FORMAT2 (1 << 7)
#define AUOK1901_INIT_FORMAT3 ((1 << 7) | (1 << 6))
#define AUOK1901_INIT_FORMAT4 (1 << 8)
#define AUOK1901_INIT_FORMAT5 ((1 << 8) | (1 << 6))
#define AUOK1901_INIT_FORMAT6 ((1 << 8) | (1 << 7))
#define AUOK1901_INIT_FORMAT7 ((1 << 8) | (1 << 7) | (1 << 6))
/* res[4] to bit 10
* res[3-0] to bits 5-2
*/
#define AUOK1901_INIT_RESOLUTION(_res) (((_res & (1 << 4)) << 6) \
| ((_res & 0xf) << 2))
/*
* portrait / landscape orientation in AUOK1901_CMD_DMA_START
*/
#define AUOK1901_DMA_ROTATE90(_rot) ((_rot & 1) << 13)
/*
* equivalent to 1 << 11, needs the ~ to have same rotation like K1900
*/
#define AUOK1901_DDMA_ROTATE180(_rot) ((~_rot & 2) << 10)
static void auok1901_init(struct auok190xfb_par *par)
{
struct device *dev = par->info->device;
struct auok190x_board *board = par->board;
u16 init_param = 0;
pm_runtime_get_sync(dev);
init_param |= AUOK190X_INIT_INVERSE_WHITE;
init_param |= AUOK190X_INIT_FORMAT0;
init_param |= AUOK1901_INIT_RESOLUTION(par->resolution);
init_param |= AUOK190X_INIT_SHIFT_LEFT;
auok190x_send_cmdargs(par, AUOK190X_CMD_INIT, 1, &init_param);
/* let the controller finish */
board->wait_for_rdy(par);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
static void auok1901_update_region(struct auok190xfb_par *par, int mode,
u16 y1, u16 y2)
{
struct device *dev = par->info->device;
unsigned char *buf = (unsigned char *)par->info->screen_base;
int xres = par->info->var.xres;
int line_length = par->info->fix.line_length;
u16 args[5];
pm_runtime_get_sync(dev);
mutex_lock(&(par->io_lock));
/* y1 and y2 must be a multiple of 2 so drop the lowest bit */
y1 &= 0xfffe;
y2 &= 0xfffe;
dev_dbg(dev, "update (x,y,w,h,mode)=(%d,%d,%d,%d,%d)\n",
1, y1+1, xres, y2-y1, mode);
/* K1901: first transfer the region data */
args[0] = AUOK1901_DMA_ROTATE90(par->rotation) | 1;
args[1] = y1 + 1;
args[2] = xres;
args[3] = y2 - y1;
buf += y1 * line_length;
auok190x_send_cmdargs_pixels_nowait(par, AUOK1901_CMD_DMA_START, 4,
args, ((y2 - y1) * line_length)/2,
(u16 *) buf);
auok190x_send_command_nowait(par, AUOK190X_CMD_DATA_STOP);
/* K1901: second tell the controller to update the region with mode */
args[0] = mode | AUOK1901_DDMA_ROTATE180(par->rotation);
args[1] = 1;
args[2] = y1 + 1;
args[3] = xres;
args[4] = y2 - y1;
auok190x_send_cmdargs_nowait(par, AUOK1901_CMD_DDMA_START, 5, args);
par->update_cnt++;
mutex_unlock(&(par->io_lock));
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
static void auok1901fb_dpy_update_pages(struct auok190xfb_par *par,
u16 y1, u16 y2)
{
int mode;
if (par->update_mode < 0) {
mode = AUOK190X_UPDATE_MODE(1);
par->last_mode = -1;
} else {
mode = AUOK190X_UPDATE_MODE(par->update_mode);
par->last_mode = par->update_mode;
}
if (par->flash)
mode |= AUOK190X_UPDATE_NONFLASH;
auok1901_update_region(par, mode, y1, y2);
}
static void auok1901fb_dpy_update(struct auok190xfb_par *par)
{
int mode;
/* When doing full updates, wait for the controller to be ready
* This will hopefully catch some hangs of the K1901
*/
par->board->wait_for_rdy(par);
if (par->update_mode < 0) {
mode = AUOK190X_UPDATE_MODE(0);
par->last_mode = -1;
} else {
mode = AUOK190X_UPDATE_MODE(par->update_mode);
par->last_mode = par->update_mode;
}
if (par->flash)
mode |= AUOK190X_UPDATE_NONFLASH;
auok1901_update_region(par, mode, 0, par->info->var.yres);
par->update_cnt = 0;
}
static bool auok1901fb_need_refresh(struct auok190xfb_par *par)
{
return (par->update_cnt > 10);
}
static int auok1901fb_probe(struct platform_device *pdev)
{
struct auok190x_init_data init;
struct auok190x_board *board;
/* pick up board specific routines */
board = pdev->dev.platform_data;
if (!board)
return -EINVAL;
/* fill temporary init struct for common init */
init.id = "auo_k1901fb";
init.board = board;
init.update_partial = auok1901fb_dpy_update_pages;
init.update_all = auok1901fb_dpy_update;
init.need_refresh = auok1901fb_need_refresh;
init.init = auok1901_init;
return auok190x_common_probe(pdev, &init);
}
static int auok1901fb_remove(struct platform_device *pdev)
{
return auok190x_common_remove(pdev);
}
static struct platform_driver auok1901fb_driver = {
.probe = auok1901fb_probe,
.remove = auok1901fb_remove,
.driver = {
.name = "auo_k1901fb",
.pm = &auok190x_pm,
},
};
module_platform_driver(auok1901fb_driver);
MODULE_DESCRIPTION("framebuffer driver for the AUO-K1901 EPD controller");
MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
MODULE_LICENSE("GPL");
drivers/video/fbdev/auo_k190x.c deleted 100644 → 0
View file @ 85d108de
/*
* Common code for AUO-K190X framebuffer drivers
*
* Copyright (C) 2012 Heiko Stuebner <heiko@sntech.de>
*
* 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/module.h>
#include <linux/sched/mm.h>
#include <linux/kernel.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/uaccess.h>
#include <linux/vmalloc.h>
#include <linux/regulator/consumer.h>
#include <video/auo_k190xfb.h>
#include "auo_k190x.h"
struct panel_info {
int w;
int h;
};
/* table of panel specific parameters to be indexed into by the board drivers */
static struct panel_info panel_table[] = {
/* standard 6" */
[AUOK190X_RESOLUTION_800_600] = {
.w = 800,
.h = 600,
},
/* standard 9" */
[AUOK190X_RESOLUTION_1024_768] = {
.w = 1024,
.h = 768,
},
[AUOK190X_RESOLUTION_600_800] = {
.w = 600,
.h = 800,
},
[AUOK190X_RESOLUTION_768_1024] = {
.w = 768,
.h = 1024,
},
};
/*
* private I80 interface to the board driver
*/
static void auok190x_issue_data(struct auok190xfb_par *par, u16 data)
{
par->board->set_ctl(par, AUOK190X_I80_WR, 0);
par->board->set_hdb(par, data);
par->board->set_ctl(par, AUOK190X_I80_WR, 1);
}
static void auok190x_issue_cmd(struct auok190xfb_par *par, u16 data)
{
par->board->set_ctl(par, AUOK190X_I80_DC, 0);
auok190x_issue_data(par, data);
par->board->set_ctl(par, AUOK190X_I80_DC, 1);
}
/**
* Conversion of 16bit color to 4bit grayscale
* does roughly (0.3 * R + 0.6 G + 0.1 B) / 2
*/
static inline int rgb565_to_gray4(u16 data, struct fb_var_screeninfo *var)
{
return ((((data & 0xF800) >> var->red.offset) * 77 +
((data & 0x07E0) >> (var->green.offset + 1)) * 151 +
((data & 0x1F) >> var->blue.offset) * 28) >> 8 >> 1);
}
static int auok190x_issue_pixels_rgb565(struct auok190xfb_par *par, int size,
u16 *data)
{
struct fb_var_screeninfo *var = &par->info->var;
struct device *dev = par->info->device;
int i;
u16 tmp;
if (size & 7) {
dev_err(dev, "issue_pixels: size %d must be a multiple of 8\n",
size);
return -EINVAL;
}
for (i = 0; i < (size >> 2); i++) {
par->board->set_ctl(par, AUOK190X_I80_WR, 0);
tmp = (rgb565_to_gray4(data[4*i], var) & 0x000F);
tmp |= (rgb565_to_gray4(data[4*i+1], var) << 4) & 0x00F0;
tmp |= (rgb565_to_gray4(data[4*i+2], var) << 8) & 0x0F00;
tmp |= (rgb565_to_gray4(data[4*i+3], var) << 12) & 0xF000;
par->board->set_hdb(par, tmp);
par->board->set_ctl(par, AUOK190X_I80_WR, 1);
}
return 0;
}
static int auok190x_issue_pixels_gray8(struct auok190xfb_par *par, int size,
u16 *data)
{
struct device *dev = par->info->device;
int i;
u16 tmp;
if (size & 3) {
dev_err(dev, "issue_pixels: size %d must be a multiple of 4\n",
size);
return -EINVAL;
}
for (i = 0; i < (size >> 1); i++) {
par->board->set_ctl(par, AUOK190X_I80_WR, 0);
/* simple reduction of 8bit staticgray to 4bit gray
* combines 4 * 4bit pixel values into a 16bit value
*/
tmp = (data[2*i] & 0xF0) >> 4;
tmp |= (data[2*i] & 0xF000) >> 8;
tmp |= (data[2*i+1] & 0xF0) << 4;
tmp |= (data[2*i+1] & 0xF000);
par->board->set_hdb(par, tmp);
par->board->set_ctl(par, AUOK190X_I80_WR, 1);
}
return 0;
}
static int auok190x_issue_pixels(struct auok190xfb_par *par, int size,
u16 *data)
{
struct fb_info *info = par->info;
struct device *dev = par->info->device;
if (info->var.bits_per_pixel == 8 && info->var.grayscale)
auok190x_issue_pixels_gray8(par, size, data);
else if (info->var.bits_per_pixel == 16)
auok190x_issue_pixels_rgb565(par, size, data);
else
dev_err(dev, "unsupported color mode (bits: %d, gray: %d)\n",
info->var.bits_per_pixel, info->var.grayscale);
return 0;
}
static u16 auok190x_read_data(struct auok190xfb_par *par)
{
u16 data;
par->board->set_ctl(par, AUOK190X_I80_OE, 0);
data = par->board->get_hdb(par);
par->board->set_ctl(par, AUOK190X_I80_OE, 1);
return data;
}
/*
* Command interface for the controller drivers
*/
void auok190x_send_command_nowait(struct auok190xfb_par *par, u16 data)
{
par->board->set_ctl(par, AUOK190X_I80_CS, 0);
auok190x_issue_cmd(par, data);
par->board->set_ctl(par, AUOK190X_I80_CS, 1);
}
EXPORT_SYMBOL_GPL(auok190x_send_command_nowait);
void auok190x_send_cmdargs_nowait(struct auok190xfb_par *par, u16 cmd,
int argc, u16 *argv)
{
int i;
par->board->set_ctl(par, AUOK190X_I80_CS, 0);
auok190x_issue_cmd(par, cmd);
for (i = 0; i < argc; i++)
auok190x_issue_data(par, argv[i]);
par->board->set_ctl(par, AUOK190X_I80_CS, 1);
}
EXPORT_SYMBOL_GPL(auok190x_send_cmdargs_nowait);
int auok190x_send_command(struct auok190xfb_par *par, u16 data)
{
int ret;
ret = par->board->wait_for_rdy(par);
if (ret)
return ret;
auok190x_send_command_nowait(par, data);
return 0;
}
EXPORT_SYMBOL_GPL(auok190x_send_command);
int auok190x_send_cmdargs(struct auok190xfb_par *par, u16 cmd,
int argc, u16 *argv)
{
int ret;
ret = par->board->wait_for_rdy(par);
if (ret)
return ret;
auok190x_send_cmdargs_nowait(par, cmd, argc, argv);
return 0;
}
EXPORT_SYMBOL_GPL(auok190x_send_cmdargs);
int auok190x_read_cmdargs(struct auok190xfb_par *par, u16 cmd,
int argc, u16 *argv)
{
int i, ret;
ret = par->board->wait_for_rdy(par);
if (ret)
return ret;
par->board->set_ctl(par, AUOK190X_I80_CS, 0);
auok190x_issue_cmd(par, cmd);
for (i = 0; i < argc; i++)
argv[i] = auok190x_read_data(par);
par->board->set_ctl(par, AUOK190X_I80_CS, 1);
return 0;
}
EXPORT_SYMBOL_GPL(auok190x_read_cmdargs);
void auok190x_send_cmdargs_pixels_nowait(struct auok190xfb_par *par, u16 cmd,
int argc, u16 *argv, int size, u16 *data)
{
int i;
par->board->set_ctl(par, AUOK190X_I80_CS, 0);
auok190x_issue_cmd(par, cmd);
for (i = 0; i < argc; i++)
auok190x_issue_data(par, argv[i]);
auok190x_issue_pixels(par, size, data);
par->board->set_ctl(par, AUOK190X_I80_CS, 1);
}
EXPORT_SYMBOL_GPL(auok190x_send_cmdargs_pixels_nowait);
int auok190x_send_cmdargs_pixels(struct auok190xfb_par *par, u16 cmd,
int argc, u16 *argv, int size, u16 *data)
{
int ret;
ret = par->board->wait_for_rdy(par);
if (ret)
return ret;
auok190x_send_cmdargs_pixels_nowait(par, cmd, argc, argv, size, data);
return 0;
}
EXPORT_SYMBOL_GPL(auok190x_send_cmdargs_pixels);
/*
* fbdefio callbacks - common on both controllers.
*/
static void auok190xfb_dpy_first_io(struct fb_info *info)
{
/* tell runtime-pm that we wish to use the device in a short time */
pm_runtime_get(info->device);
}
/* this is called back from the deferred io workqueue */
static void auok190xfb_dpy_deferred_io(struct fb_info *info,
struct list_head *pagelist)
{
struct fb_deferred_io *fbdefio = info->fbdefio;
struct auok190xfb_par *par = info->par;
u16 line_length = info->fix.line_length;
u16 yres = info->var.yres;
u16 y1 = 0, h = 0;
int prev_index = -1;
struct page *cur;
int h_inc;
int threshold;
if (!list_empty(pagelist))
/* the device resume should've been requested through first_io,
* if the resume did not finish until now, wait for it.
*/
pm_runtime_barrier(info->device);
else
/* We reached this via the fsync or some other way.
* In either case the first_io function did not run,
* so we runtime_resume the device here synchronously.
*/
pm_runtime_get_sync(info->device);
/* Do a full screen update every n updates to prevent
* excessive darkening of the Sipix display.
* If we do this, there is no need to walk the pages.
*/
if (par->need_refresh(par)) {
par->update_all(par);
goto out;
}
/* height increment is fixed per page */
h_inc = DIV_ROUND_UP(PAGE_SIZE , line_length);
/* calculate number of pages from pixel height */
threshold = par->consecutive_threshold / h_inc;
if (threshold < 1)
threshold = 1;
/* walk the written page list and swizzle the data */
list_for_each_entry(cur, &fbdefio->pagelist, lru) {
if (prev_index < 0) {
/* just starting so assign first page */
y1 = (cur->index << PAGE_SHIFT) / line_length;
h = h_inc;
} else if ((cur->index - prev_index) <= threshold) {
/* page is within our threshold for single updates */
h += h_inc * (cur->index - prev_index);
} else {
/* page not consecutive, issue previous update first */
par->update_partial(par, y1, y1 + h);
/* start over with our non consecutive page */
y1 = (cur->index << PAGE_SHIFT) / line_length;
h = h_inc;
}
prev_index = cur->index;
}
/* if we still have any pages to update we do so now */
if (h >= yres)
/* its a full screen update, just do it */
par->update_all(par);
else
par->update_partial(par, y1, min((u16) (y1 + h), yres));
out:
pm_runtime_mark_last_busy(info->device);
pm_runtime_put_autosuspend(info->device);
}
/*
* framebuffer operations
*/
/*
* this is the slow path from userspace. they can seek and write to
* the fb. it's inefficient to do anything less than a full screen draw
*/
static ssize_t auok190xfb_write(struct fb_info *info, const char __user *buf,
size_t count, loff_t *ppos)
{
struct auok190xfb_par *par = info->par;
unsigned long p = *ppos;
void *dst;
int err = 0;
unsigned long total_size;
if (info->state != FBINFO_STATE_RUNNING)
return -EPERM;
total_size = info->fix.smem_len;
if (p > total_size)
return -EFBIG;
if (count > total_size) {
err = -EFBIG;
count = total_size;
}
if (count + p > total_size) {
if (!err)
err = -ENOSPC;
count = total_size - p;
}
dst = (void *)(info->screen_base + p);
if (copy_from_user(dst, buf, count))
err = -EFAULT;
if (!err)
*ppos += count;
par->update_all(par);
return (err) ? err : count;
}
static void auok190xfb_fillrect(struct fb_info *info,
const struct fb_fillrect *rect)
{
struct auok190xfb_par *par = info->par;
sys_fillrect(info, rect);
par->update_all(par);
}
static void auok190xfb_copyarea(struct fb_info *info,
const struct fb_copyarea *area)
{
struct auok190xfb_par *par = info->par;
sys_copyarea(info, area);
par->update_all(par);
}
static void auok190xfb_imageblit(struct fb_info *info,
const struct fb_image *image)
{
struct auok190xfb_par *par = info->par;
sys_imageblit(info, image);
par->update_all(par);
}
static int auok190xfb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct device *dev = info->device;
struct auok190xfb_par *par = info->par;
struct panel_info *panel = &panel_table[par->resolution];
int size;
/*
* Color depth
*/
if (var->bits_per_pixel == 8 && var->grayscale == 1) {
/*
* For 8-bit grayscale, R, G, and B offset are equal.
*/
var->red.length = 8;
var->red.offset = 0;
var->red.msb_right = 0;
var->green.length = 8;
var->green.offset = 0;
var->green.msb_right = 0;
var->blue.length = 8;
var->blue.offset = 0;
var->blue.msb_right = 0;
var->transp.length = 0;
var->transp.offset = 0;
var->transp.msb_right = 0;
} else if (var->bits_per_pixel == 16) {
var->red.length = 5;
var->red.offset = 11;
var->red.msb_right = 0;
var->green.length = 6;
var->green.offset = 5;
var->green.msb_right = 0;
var->blue.length = 5;
var->blue.offset = 0;
var->blue.msb_right = 0;
var->transp.length = 0;
var->transp.offset = 0;
var->transp.msb_right = 0;
} else {
dev_warn(dev, "unsupported color mode (bits: %d, grayscale: %d)\n",
info->var.bits_per_pixel, info->var.grayscale);
return -EINVAL;
}
/*
* Dimensions
*/
switch (var->rotate) {
case FB_ROTATE_UR:
case FB_ROTATE_UD:
var->xres = panel->w;
var->yres = panel->h;
break;
case FB_ROTATE_CW:
case FB_ROTATE_CCW:
var->xres = panel->h;
var->yres = panel->w;
break;
default:
dev_dbg(dev, "Invalid rotation request\n");
return -EINVAL;
}
var->xres_virtual = var->xres;
var->yres_virtual = var->yres;
/*
* Memory limit
*/
size = var->xres_virtual * var->yres_virtual * var->bits_per_pixel / 8;
if (size > info->fix.smem_len) {
dev_err(dev, "Memory limit exceeded, requested %dK\n",
size >> 10);
return -ENOMEM;
}
return 0;
}
static int auok190xfb_set_fix(struct fb_info *info)
{
struct fb_fix_screeninfo *fix = &info->fix;
struct fb_var_screeninfo *var = &info->var;
fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
fix->type = FB_TYPE_PACKED_PIXELS;
fix->accel = FB_ACCEL_NONE;
fix->visual = (var->grayscale) ? FB_VISUAL_STATIC_PSEUDOCOLOR
: FB_VISUAL_TRUECOLOR;
fix->xpanstep = 0;
fix->ypanstep = 0;
fix->ywrapstep = 0;
return 0;
}
static int auok190xfb_set_par(struct fb_info *info)
{
struct auok190xfb_par *par = info->par;
par->rotation = info->var.rotate;
auok190xfb_set_fix(info);
/* reinit the controller to honor the rotation */
par->init(par);
/* wait for init to complete */
par->board->wait_for_rdy(par);
return 0;
}
static struct fb_ops auok190xfb_ops = {
.owner = THIS_MODULE,
.fb_read = fb_sys_read,
.fb_write = auok190xfb_write,
.fb_fillrect = auok190xfb_fillrect,
.fb_copyarea = auok190xfb_copyarea,
.fb_imageblit = auok190xfb_imageblit,
.fb_check_var = auok190xfb_check_var,
.fb_set_par = auok190xfb_set_par,
};
/*
* Controller-functions common to both K1900 and K1901
*/
static int auok190x_read_temperature(struct auok190xfb_par *par)
{
struct device *dev = par->info->device;
u16 data[4];
int temp;
pm_runtime_get_sync(dev);
mutex_lock(&(par->io_lock));
auok190x_read_cmdargs(par, AUOK190X_CMD_READ_VERSION, 4, data);
mutex_unlock(&(par->io_lock));
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
/* sanitize and split of half-degrees for now */
temp = ((data[0] & AUOK190X_VERSION_TEMP_MASK) >> 1);
/* handle positive and negative temperatures */
if (temp >= 201)
return (255 - temp + 1) * (-1);
else
return temp;
}
static void auok190x_identify(struct auok190xfb_par *par)
{
struct device *dev = par->info->device;
u16 data[4];
pm_runtime_get_sync(dev);
mutex_lock(&(par->io_lock));
auok190x_read_cmdargs(par, AUOK190X_CMD_READ_VERSION, 4, data);
mutex_unlock(&(par->io_lock));
par->epd_type = data[1] & AUOK190X_VERSION_TEMP_MASK;
par->panel_size_int = AUOK190X_VERSION_SIZE_INT(data[2]);
par->panel_size_float = AUOK190X_VERSION_SIZE_FLOAT(data[2]);
par->panel_model = AUOK190X_VERSION_MODEL(data[2]);
par->tcon_version = AUOK190X_VERSION_TCON(data[3]);
par->lut_version = AUOK190X_VERSION_LUT(data[3]);
dev_dbg(dev, "panel %d.%din, model 0x%x, EPD 0x%x TCON-rev 0x%x, LUT-rev 0x%x",
par->panel_size_int, par->panel_size_float, par->panel_model,
par->epd_type, par->tcon_version, par->lut_version);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
/*
* Sysfs functions
*/
static ssize_t update_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct fb_info *info = dev_get_drvdata(dev);
struct auok190xfb_par *par = info->par;
return sprintf(buf, "%d\n", par->update_mode);
}
static ssize_t update_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct fb_info *info = dev_get_drvdata(dev);
struct auok190xfb_par *par = info->par;
int mode, ret;
ret = kstrtoint(buf, 10, &mode);
if (ret)
return ret;
par->update_mode = mode;
/* if we enter a better mode, do a full update */
if (par->last_mode > 1 && mode < par->last_mode)
par->update_all(par);
return count;
}
static ssize_t flash_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct fb_info *info = dev_get_drvdata(dev);
struct auok190xfb_par *par = info->par;
return sprintf(buf, "%d\n", par->flash);
}
static ssize_t flash_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct fb_info *info = dev_get_drvdata(dev);
struct auok190xfb_par *par = info->par;
int flash, ret;
ret = kstrtoint(buf, 10, &flash);
if (ret)
return ret;
if (flash > 0)
par->flash = 1;
else
par->flash = 0;
return count;
}
static ssize_t temp_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct fb_info *info = dev_get_drvdata(dev);
struct auok190xfb_par *par = info->par;
int temp;
temp = auok190x_read_temperature(par);
return sprintf(buf, "%d\n", temp);
}
static DEVICE_ATTR_RW(update_mode);
static DEVICE_ATTR_RW(flash);
static DEVICE_ATTR(temp, 0644, temp_show, NULL);
static struct attribute *auok190x_attributes[] = {
&dev_attr_update_mode.attr,
&dev_attr_flash.attr,
&dev_attr_temp.attr,
NULL
};
static const struct attribute_group auok190x_attr_group = {
.attrs = auok190x_attributes,
};
static int auok190x_power(struct auok190xfb_par *par, bool on)
{
struct auok190x_board *board = par->board;
int ret;
if (on) {
/* We should maintain POWER up for at least 80ms before set
* RST_N and SLP_N to high (TCON spec 20100803_v35 p59)
*/
ret = regulator_enable(par->regulator);
if (ret)
return ret;
msleep(200);
gpio_set_value(board->gpio_nrst, 1);
gpio_set_value(board->gpio_nsleep, 1);
msleep(200);
} else {
regulator_disable(par->regulator);
gpio_set_value(board->gpio_nrst, 0);
gpio_set_value(board->gpio_nsleep, 0);
}
return 0;
}
/*
* Recovery - powercycle the controller
*/
static void auok190x_recover(struct auok190xfb_par *par)
{
struct device *dev = par->info->device;
auok190x_power(par, 0);
msleep(100);
auok190x_power(par, 1);
/* after powercycling the device, it's always active */
pm_runtime_set_active(dev);
par->standby = 0;
par->init(par);
/* wait for init to complete */
par->board->wait_for_rdy(par);
}
/*
* Power-management
*/
static int __maybe_unused auok190x_runtime_suspend(struct device *dev)
{
struct fb_info *info = dev_get_drvdata(dev);
struct auok190xfb_par *par = info->par;
struct auok190x_board *board = par->board;
u16 standby_param;
/* take and keep the lock until we are resumed, as the controller
* will never reach the non-busy state when in standby mode
*/
mutex_lock(&(par->io_lock));
if (par->standby) {
dev_warn(dev, "already in standby, runtime-pm pairing mismatch\n");
mutex_unlock(&(par->io_lock));
return 0;
}
/* according to runtime_pm.txt runtime_suspend only means, that the
* device will not process data and will not communicate with the CPU
* As we hold the lock, this stays true even without standby
*/
if (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN) {
dev_dbg(dev, "runtime suspend without standby\n");
goto finish;
} else if (board->quirks & AUOK190X_QUIRK_STANDBYPARAM) {
/* for some TCON versions STANDBY expects a parameter (0) but
* it seems the real tcon version has to be determined yet.
*/
dev_dbg(dev, "runtime suspend with additional empty param\n");
standby_param = 0;
auok190x_send_cmdargs(par, AUOK190X_CMD_STANDBY, 1,
&standby_param);
} else {
dev_dbg(dev, "runtime suspend without param\n");
auok190x_send_command(par, AUOK190X_CMD_STANDBY);
}
msleep(64);
finish:
par->standby = 1;
return 0;
}
static int __maybe_unused auok190x_runtime_resume(struct device *dev)
{
struct fb_info *info = dev_get_drvdata(dev);
struct auok190xfb_par *par = info->par;
struct auok190x_board *board = par->board;
if (!par->standby) {
dev_warn(dev, "not in standby, runtime-pm pairing mismatch\n");
return 0;
}
if (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN) {
dev_dbg(dev, "runtime resume without standby\n");
} else {
/* when in standby, controller is always busy
* and only accepts the wakeup command
*/
dev_dbg(dev, "runtime resume from standby\n");
auok190x_send_command_nowait(par, AUOK190X_CMD_WAKEUP);
msleep(160);
/* wait for the controller to be ready and release the lock */
board->wait_for_rdy(par);
}
par->standby = 0;
mutex_unlock(&(par->io_lock));
return 0;
}
static int __maybe_unused auok190x_suspend(struct device *dev)
{
struct fb_info *info = dev_get_drvdata(dev);
struct auok190xfb_par *par = info->par;
struct auok190x_board *board = par->board;
int ret;
dev_dbg(dev, "suspend\n");
if (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN) {
/* suspend via powering off the ic */
dev_dbg(dev, "suspend with broken standby\n");
auok190x_power(par, 0);
} else {
dev_dbg(dev, "suspend using sleep\n");
/* the sleep state can only be entered from the standby state.
* pm_runtime_get_noresume gets called before the suspend call.
* So the devices usage count is >0 but it is not necessarily
* active.
*/
if (!pm_runtime_status_suspended(dev)) {
ret = auok190x_runtime_suspend(dev);
if (ret < 0) {
dev_err(dev, "auok190x_runtime_suspend failed with %d\n",
ret);
return ret;
}
par->manual_standby = 1;
}
gpio_direction_output(board->gpio_nsleep, 0);
}
msleep(100);
return 0;
}
static int __maybe_unused auok190x_resume(struct device *dev)
{
struct fb_info *info = dev_get_drvdata(dev);
struct auok190xfb_par *par = info->par;
struct auok190x_board *board = par->board;
dev_dbg(dev, "resume\n");
if (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN) {
dev_dbg(dev, "resume with broken standby\n");
auok190x_power(par, 1);
par->init(par);
} else {
dev_dbg(dev, "resume from sleep\n");
/* device should be in runtime suspend when we were suspended
* and pm_runtime_put_sync gets called after this function.
* So there is no need to touch the standby mode here at all.
*/
gpio_direction_output(board->gpio_nsleep, 1);
msleep(100);
/* an additional init call seems to be necessary after sleep */
auok190x_runtime_resume(dev);
par->init(par);
/* if we were runtime-suspended before, suspend again*/
if (!par->manual_standby)
auok190x_runtime_suspend(dev);
else
par->manual_standby = 0;
}
return 0;
}
const struct dev_pm_ops auok190x_pm = {
SET_RUNTIME_PM_OPS(auok190x_runtime_suspend, auok190x_runtime_resume,
NULL)
SET_SYSTEM_SLEEP_PM_OPS(auok190x_suspend, auok190x_resume)
};
EXPORT_SYMBOL_GPL(auok190x_pm);
/*
* Common probe and remove code
*/
int auok190x_common_probe(struct platform_device *pdev,
struct auok190x_init_data *init)
{
struct auok190x_board *board = init->board;
struct auok190xfb_par *par;
struct fb_info *info;
struct panel_info *panel;
int videomemorysize, ret;
unsigned char *videomemory;
/* check board contents */
if (!board->init || !board->cleanup || !board->wait_for_rdy
|| !board->set_ctl || !board->set_hdb || !board->get_hdb
|| !board->setup_irq)
return -EINVAL;
info = framebuffer_alloc(sizeof(struct auok190xfb_par), &pdev->dev);
if (!info)
return -ENOMEM;
par = info->par;
par->info = info;
par->board = board;
par->recover = auok190x_recover;
par->update_partial = init->update_partial;
par->update_all = init->update_all;
par->need_refresh = init->need_refresh;
par->init = init->init;
/* init update modes */
par->update_cnt = 0;
par->update_mode = -1;
par->last_mode = -1;
par->flash = 0;
par->regulator = regulator_get(info->device, "vdd");
if (IS_ERR(par->regulator)) {
ret = PTR_ERR(par->regulator);
dev_err(info->device, "Failed to get regulator: %d\n", ret);
goto err_reg;
}
ret = board->init(par);
if (ret) {
dev_err(info->device, "board init failed, %d\n", ret);
goto err_board;
}
ret = gpio_request(board->gpio_nsleep, "AUOK190x sleep");
if (ret) {
dev_err(info->device, "could not request sleep gpio, %d\n",
ret);
goto err_gpio1;
}
ret = gpio_direction_output(board->gpio_nsleep, 0);
if (ret) {
dev_err(info->device, "could not set sleep gpio, %d\n", ret);
goto err_gpio2;
}
ret = gpio_request(board->gpio_nrst, "AUOK190x reset");
if (ret) {
dev_err(info->device, "could not request reset gpio, %d\n",
ret);
goto err_gpio2;
}
ret = gpio_direction_output(board->gpio_nrst, 0);
if (ret) {
dev_err(info->device, "could not set reset gpio, %d\n", ret);
goto err_gpio3;
}
ret = auok190x_power(par, 1);
if (ret) {
dev_err(info->device, "could not power on the device, %d\n",
ret);
goto err_gpio3;
}
mutex_init(&par->io_lock);
init_waitqueue_head(&par->waitq);
ret = par->board->setup_irq(par->info);
if (ret) {
dev_err(info->device, "could not setup ready-irq, %d\n", ret);
goto err_irq;
}
/* wait for init to complete */
par->board->wait_for_rdy(par);
/*
* From here on the controller can talk to us
*/
/* initialise fix, var, resolution and rotation */
strlcpy(info->fix.id, init->id, 16);
info->var.bits_per_pixel = 8;
info->var.grayscale = 1;
panel = &panel_table[board->resolution];
par->resolution = board->resolution;
par->rotation = 0;
/* videomemory handling */
videomemorysize = roundup((panel->w * panel->h) * 2, PAGE_SIZE);
videomemory = vzalloc(videomemorysize);
if (!videomemory) {
ret = -ENOMEM;
goto err_irq;
}
info->screen_base = (char *)videomemory;
info->fix.smem_len = videomemorysize;
info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
info->fbops = &auok190xfb_ops;
ret = auok190xfb_check_var(&info->var, info);
if (ret)
goto err_defio;
auok190xfb_set_fix(info);
/* deferred io init */
info->fbdefio = devm_kzalloc(info->device,
sizeof(struct fb_deferred_io),
GFP_KERNEL);
if (!info->fbdefio) {
ret = -ENOMEM;
goto err_defio;
}
dev_dbg(info->device, "targeting %d frames per second\n", board->fps);
info->fbdefio->delay = HZ / board->fps;
info->fbdefio->first_io = auok190xfb_dpy_first_io,
info->fbdefio->deferred_io = auok190xfb_dpy_deferred_io,
fb_deferred_io_init(info);
/* color map */
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret < 0) {
dev_err(info->device, "Failed to allocate colormap\n");
goto err_cmap;
}
/* controller init */
par->consecutive_threshold = 100;
par->init(par);
auok190x_identify(par);
platform_set_drvdata(pdev, info);
ret = register_framebuffer(info);
if (ret < 0)
goto err_regfb;
ret = sysfs_create_group(&info->device->kobj, &auok190x_attr_group);
if (ret)
goto err_sysfs;
dev_info(info->device, "fb%d: %dx%d using %dK of video memory\n",
info->node, info->var.xres, info->var.yres,
videomemorysize >> 10);
/* increase autosuspend_delay when we use alternative methods
* for runtime_pm
*/
par->autosuspend_delay = (board->quirks & AUOK190X_QUIRK_STANDBYBROKEN)
? 1000 : 200;
pm_runtime_set_active(info->device);
pm_runtime_enable(info->device);
pm_runtime_set_autosuspend_delay(info->device, par->autosuspend_delay);
pm_runtime_use_autosuspend(info->device);
return 0;
err_sysfs:
unregister_framebuffer(info);
err_regfb:
fb_dealloc_cmap(&info->cmap);
err_cmap:
fb_deferred_io_cleanup(info);
err_defio:
vfree((void *)info->screen_base);
err_irq:
auok190x_power(par, 0);
err_gpio3:
gpio_free(board->gpio_nrst);
err_gpio2:
gpio_free(board->gpio_nsleep);
err_gpio1:
board->cleanup(par);
err_board:
regulator_put(par->regulator);
err_reg:
framebuffer_release(info);
return ret;
}
EXPORT_SYMBOL_GPL(auok190x_common_probe);
int auok190x_common_remove(struct platform_device *pdev)
{
struct fb_info *info = platform_get_drvdata(pdev);
struct auok190xfb_par *par = info->par;
struct auok190x_board *board = par->board;
pm_runtime_disable(info->device);
sysfs_remove_group(&info->device->kobj, &auok190x_attr_group);
unregister_framebuffer(info);
fb_dealloc_cmap(&info->cmap);
fb_deferred_io_cleanup(info);
vfree((void *)info->screen_base);
auok190x_power(par, 0);
gpio_free(board->gpio_nrst);
gpio_free(board->gpio_nsleep);
board->cleanup(par);
regulator_put(par->regulator);
framebuffer_release(info);
return 0;
}
EXPORT_SYMBOL_GPL(auok190x_common_remove);
MODULE_DESCRIPTION("Common code for AUO-K190X controllers");
MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
MODULE_LICENSE("GPL");
drivers/video/fbdev/auo_k190x.h deleted 100644 → 0
View file @ 85d108de
/*
* Private common definitions for AUO-K190X framebuffer drivers
*
* Copyright (C) 2012 Heiko Stuebner <heiko@sntech.de>
*
* 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.
*/
/*
* I80 interface specific defines
*/
#define AUOK190X_I80_CS 0x01
#define AUOK190X_I80_DC 0x02
#define AUOK190X_I80_WR 0x03
#define AUOK190X_I80_OE 0x04
/*
* AUOK190x commands, common to both controllers
*/
#define AUOK190X_CMD_INIT 0x0000
#define AUOK190X_CMD_STANDBY 0x0001
#define AUOK190X_CMD_WAKEUP 0x0002
#define AUOK190X_CMD_TCON_RESET 0x0003
#define AUOK190X_CMD_DATA_STOP 0x1002
#define AUOK190X_CMD_LUT_START 0x1003
#define AUOK190X_CMD_DISP_REFRESH 0x1004
#define AUOK190X_CMD_DISP_RESET 0x1005
#define AUOK190X_CMD_PRE_DISPLAY_START 0x100D
#define AUOK190X_CMD_PRE_DISPLAY_STOP 0x100F
#define AUOK190X_CMD_FLASH_W 0x2000
#define AUOK190X_CMD_FLASH_E 0x2001
#define AUOK190X_CMD_FLASH_STS 0x2002
#define AUOK190X_CMD_FRAMERATE 0x3000
#define AUOK190X_CMD_READ_VERSION 0x4000
#define AUOK190X_CMD_READ_STATUS 0x4001
#define AUOK190X_CMD_READ_LUT 0x4003
#define AUOK190X_CMD_DRIVERTIMING 0x5000
#define AUOK190X_CMD_LBALANCE 0x5001
#define AUOK190X_CMD_AGINGMODE 0x6000
#define AUOK190X_CMD_AGINGEXIT 0x6001
/*
* Common settings for AUOK190X_CMD_INIT
*/
#define AUOK190X_INIT_DATA_FILTER (0 << 12)
#define AUOK190X_INIT_DATA_BYPASS (1 << 12)
#define AUOK190X_INIT_INVERSE_WHITE (0 << 9)
#define AUOK190X_INIT_INVERSE_BLACK (1 << 9)
#define AUOK190X_INIT_SCAN_DOWN (0 << 1)
#define AUOK190X_INIT_SCAN_UP (1 << 1)
#define AUOK190X_INIT_SHIFT_LEFT (0 << 0)
#define AUOK190X_INIT_SHIFT_RIGHT (1 << 0)
/* Common bits to pixels
* Mode 15-12 11-8 7-4 3-0
* format0 4 3 2 1
* format1 3 4 1 2
*/
#define AUOK190X_INIT_FORMAT0 0
#define AUOK190X_INIT_FORMAT1 (1 << 6)
/*
* settings for AUOK190X_CMD_RESET
*/
#define AUOK190X_RESET_TCON (0 << 0)
#define AUOK190X_RESET_NORMAL (1 << 0)
#define AUOK190X_RESET_PON (1 << 1)
/*
* AUOK190X_CMD_VERSION
*/
#define AUOK190X_VERSION_TEMP_MASK (0x1ff)
#define AUOK190X_VERSION_EPD_MASK (0xff)
#define AUOK190X_VERSION_SIZE_INT(_val) ((_val & 0xfc00) >> 10)
#define AUOK190X_VERSION_SIZE_FLOAT(_val) ((_val & 0x3c0) >> 6)
#define AUOK190X_VERSION_MODEL(_val) (_val & 0x3f)
#define AUOK190X_VERSION_LUT(_val) (_val & 0xff)
#define AUOK190X_VERSION_TCON(_val) ((_val & 0xff00) >> 8)
/*
* update modes for CMD_PARTIALDISP on K1900 and CMD_DDMA on K1901
*/
#define AUOK190X_UPDATE_MODE(_res) ((_res & 0x7) << 12)
#define AUOK190X_UPDATE_NONFLASH (1 << 15)
/*
* track panel specific parameters for common init
*/
struct auok190x_init_data {
char *id;
struct auok190x_board *board;
void (*update_partial)(struct auok190xfb_par *par, u16 y1, u16 y2);
void (*update_all)(struct auok190xfb_par *par);
bool (*need_refresh)(struct auok190xfb_par *par);
void (*init)(struct auok190xfb_par *par);
};
extern void auok190x_send_command_nowait(struct auok190xfb_par *par, u16 data);
extern int auok190x_send_command(struct auok190xfb_par *par, u16 data);
extern void auok190x_send_cmdargs_nowait(struct auok190xfb_par *par, u16 cmd,
int argc, u16 *argv);
extern int auok190x_send_cmdargs(struct auok190xfb_par *par, u16 cmd,
int argc, u16 *argv);
extern void auok190x_send_cmdargs_pixels_nowait(struct auok190xfb_par *par,
u16 cmd, int argc, u16 *argv,
int size, u16 *data);
extern int auok190x_send_cmdargs_pixels(struct auok190xfb_par *par, u16 cmd,
int argc, u16 *argv, int size,
u16 *data);
extern int auok190x_read_cmdargs(struct auok190xfb_par *par, u16 cmd,
int argc, u16 *argv);
extern int auok190x_common_probe(struct platform_device *pdev,
struct auok190x_init_data *init);
extern int auok190x_common_remove(struct platform_device *pdev);
extern const struct dev_pm_ops auok190x_pm;
include/video/auo_k190xfb.h deleted 100644 → 0
View file @ 85d108de
/*
* Definitions for AUO-K190X framebuffer drivers
*
* Copyright (C) 2012 Heiko Stuebner <heiko@sntech.de>
*
* 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.
*/
#ifndef _LINUX_VIDEO_AUO_K190XFB_H_
#define _LINUX_VIDEO_AUO_K190XFB_H_
/* Controller standby command needs a param */
#define AUOK190X_QUIRK_STANDBYPARAM (1 << 0)
/* Controller standby is completely broken */
#define AUOK190X_QUIRK_STANDBYBROKEN (1 << 1)
/*
* Resolutions for the displays
*/
#define AUOK190X_RESOLUTION_800_600 0
#define AUOK190X_RESOLUTION_1024_768 1
#define AUOK190X_RESOLUTION_600_800 4
#define AUOK190X_RESOLUTION_768_1024 5
/*
* struct used by auok190x. board specific stuff comes from *board
*/
struct auok190xfb_par {
struct fb_info *info;
struct auok190x_board *board;
struct regulator *regulator;
struct mutex io_lock;
struct delayed_work work;
wait_queue_head_t waitq;
int resolution;
int rotation;
int consecutive_threshold;
int update_cnt;
/* panel and controller informations */
int epd_type;
int panel_size_int;
int panel_size_float;
int panel_model;
int tcon_version;
int lut_version;
/* individual controller callbacks */
void (*update_partial)(struct auok190xfb_par *par, u16 y1, u16 y2);
void (*update_all)(struct auok190xfb_par *par);
bool (*need_refresh)(struct auok190xfb_par *par);
void (*init)(struct auok190xfb_par *par);
void (*recover)(struct auok190xfb_par *par);
int update_mode; /* mode to use for updates */
int last_mode; /* update mode last used */
int flash;
/* power management */
int autosuspend_delay;
bool standby;
bool manual_standby;
};
/**
* Board specific platform-data
* @init: initialize the controller interface
* @cleanup: cleanup the controller interface
* @wait_for_rdy: wait until the controller is not busy anymore
* @set_ctl: change an interface control
* @set_hdb: write a value to the data register
* @get_hdb: read a value from the data register
* @setup_irq: method to setup the irq handling on the busy gpio
* @gpio_nsleep: sleep gpio
* @gpio_nrst: reset gpio
* @gpio_nbusy: busy gpio
* @resolution: one of the AUOK190X_RESOLUTION constants
* @rotation: rotation of the framebuffer
* @quirks: controller quirks to honor
* @fps: frames per second for defio
*/
struct auok190x_board {
int (*init)(struct auok190xfb_par *);
void (*cleanup)(struct auok190xfb_par *);
int (*wait_for_rdy)(struct auok190xfb_par *);
void (*set_ctl)(struct auok190xfb_par *, unsigned char, u8);
void (*set_hdb)(struct auok190xfb_par *, u16);
u16 (*get_hdb)(struct auok190xfb_par *);
int (*setup_irq)(struct fb_info *);
int gpio_nsleep;
int gpio_nrst;
int gpio_nbusy;
int resolution;
int quirks;
int fps;
};
#endif
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