mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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unicore32 machine related: add frame buffer driver for pkunity-v3 soc
change from original version -- by advice of Paul Mundt 1. remove videomemorysize definitions 2. remove unifb_enable and unifb_setup 3. use dev_warn instead of printk in fb driver 4. remove judgement for FB_ACCEL_PUV3_UNIGFX 5. adjust clk_get and clk_set_rate calls 6. add resources definitions 7. remove unifb_option 8. adjust register for platform_device 9. adjust unifb_ops position and unifb_regs assignment position Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
GuanXuetao
parent
d10e4a660d
commit
ce443ab5fd
@ -4902,6 +4902,7 @@ S: Maintained
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T: git git://git.kernel.org/pub/scm/linux/kernel/git/epip/linux-2.6-unicore32.git
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F: drivers/input/serio/i8042-unicore32io.h
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F: drivers/i2c/busses/i2c-puv3.c
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F: drivers/video/fb-puv3.c
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PMC SIERRA MaxRAID DRIVER
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M: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
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@ -66,7 +66,6 @@ CONFIG_LCD_BACKLIGHT=n
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CONFIG_PUV3_RTC=y
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CONFIG_PUV3_UMAL=y
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CONFIG_PUV3_UNIGFX=y
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CONFIG_PUV3_MUSB=n
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CONFIG_PUV3_AC97=n
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CONFIG_PUV3_NAND=n
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@ -130,6 +129,8 @@ CONFIG_VIDEO_DEV=n
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CONFIG_USB_VIDEO_CLASS=n
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# Graphics support
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CONFIG_FB=y
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CONFIG_FB_PUV3_UNIGFX=y
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# Console display driver support
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CONFIG_VGA_CONSOLE=n
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CONFIG_FRAMEBUFFER_CONSOLE=y
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@ -50,7 +50,7 @@ void puv3_pci_adjust_zones(unsigned long *size, unsigned long *holes);
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/* kuser area */
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#define KUSER_VECPAGE_BASE (KUSER_BASE + UL(0x3fff0000))
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#define KUSER_UNIGFX_BASE (KUSER_BASE + PKUNITY_UNIGFX_MMAP_BASE)
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#define KUSER_UNIGFX_BASE (PAGE_OFFSET + PKUNITY_UNIGFX_MMAP_BASE)
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/* kuser_vecpage (0xbfff0000) is ro, and vectors page (0xffff0000) is rw */
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#define kuser_vecpage_to_vectors(x) ((x) - (KUSER_VECPAGE_BASE) \
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+ (VECTORS_BASE))
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@ -93,6 +93,19 @@ static struct resource puv3_mmc_resources[] = {
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},
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};
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static struct resource puv3_unigfx_resources[] = {
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[0] = {
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.start = PKUNITY_UNIGFX_BASE,
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.end = PKUNITY_UNIGFX_BASE + 0xfff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PKUNITY_UNIGFX_MMAP_BASE,
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.end = PKUNITY_UNIGFX_MMAP_BASE + PKUNITY_UNIGFX_MMAP_SIZE,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct resource puv3_rtc_resources[] = {
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[0] = {
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.start = PKUNITY_RTC_BASE,
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@ -256,6 +269,8 @@ void __init puv3_core_init(void)
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puv3_umal_resources, ARRAY_SIZE(puv3_umal_resources));
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platform_device_register_simple("PKUnity-v3-MMC", -1,
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puv3_mmc_resources, ARRAY_SIZE(puv3_mmc_resources));
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platform_device_register_simple("PKUnity-v3-UNIGFX", -1,
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puv3_unigfx_resources, ARRAY_SIZE(puv3_unigfx_resources));
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platform_device_register_simple("PKUnity-v3-PWM", -1,
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puv3_pwm_resources, ARRAY_SIZE(puv3_pwm_resources));
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platform_device_register_simple("PKUnity-v3-UART", 0,
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@ -2365,6 +2365,17 @@ config FB_JZ4740
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help
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Framebuffer support for the JZ4740 SoC.
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config FB_PUV3_UNIGFX
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tristate "PKUnity v3 Unigfx framebuffer support"
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depends on FB && UNICORE32 && ARCH_PUV3
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select FB_SYS_FILLRECT
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select FB_SYS_COPYAREA
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select FB_SYS_IMAGEBLIT
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select FB_SYS_FOPS
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help
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Choose this option if you want to use the Unigfx device as a
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framebuffer device. Without the support of PCI & AGP.
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source "drivers/video/omap/Kconfig"
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source "drivers/video/omap2/Kconfig"
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@ -139,6 +139,7 @@ obj-$(CONFIG_FB_MB862XX) += mb862xx/
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obj-$(CONFIG_FB_MSM) += msm/
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obj-$(CONFIG_FB_NUC900) += nuc900fb.o
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obj-$(CONFIG_FB_JZ4740) += jz4740_fb.o
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obj-$(CONFIG_FB_PUV3_UNIGFX) += fb-puv3.o
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# Platform or fallback drivers go here
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obj-$(CONFIG_FB_UVESA) += uvesafb.o
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846
drivers/video/fb-puv3.c
Normal file
846
drivers/video/fb-puv3.c
Normal file
@ -0,0 +1,846 @@
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/*
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* Frame Buffer Driver for PKUnity-v3 Unigfx
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* Code specific to PKUnity SoC and UniCore ISA
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*
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* Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
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* Copyright (C) 2001-2010 Guan Xuetao
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/vmalloc.h>
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#include <linux/platform_device.h>
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#include <linux/clk.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <linux/console.h>
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#include <asm/sizes.h>
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#include <mach/hardware.h>
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/* Platform_data reserved for unifb registers. */
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#define UNIFB_REGS_NUM 10
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/* RAM reserved for the frame buffer. */
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#define UNIFB_MEMSIZE (SZ_4M) /* 4 MB for 1024*768*32b */
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/*
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* cause UNIGFX don not have EDID
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* all the modes are organized as follow
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*/
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static const struct fb_videomode unifb_modes[] = {
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/* 0 640x480-60 VESA */
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{ "640x480@60", 60, 640, 480, 25175000, 48, 16, 34, 10, 96, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 1 640x480-75 VESA */
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{ "640x480@75", 75, 640, 480, 31500000, 120, 16, 18, 1, 64, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 2 800x600-60 VESA */
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{ "800x600@60", 60, 800, 600, 40000000, 88, 40, 26, 1, 128, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 3 800x600-75 VESA */
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{ "800x600@75", 75, 800, 600, 49500000, 160, 16, 23, 1, 80, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 4 1024x768-60 VESA */
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{ "1024x768@60", 60, 1024, 768, 65000000, 160, 24, 34, 3, 136, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 5 1024x768-75 VESA */
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{ "1024x768@75", 75, 1024, 768, 78750000, 176, 16, 30, 1, 96, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 6 1280x960-60 VESA */
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{ "1280x960@60", 60, 1280, 960, 108000000, 312, 96, 38, 1, 112, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 7 1440x900-60 VESA */
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{ "1440x900@60", 60, 1440, 900, 106500000, 232, 80, 30, 3, 152, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 8 FIXME 9 1024x600-60 VESA UNTESTED */
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{ "1024x600@60", 60, 1024, 600, 50650000, 160, 24, 26, 1, 136, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 9 FIXME 10 1024x600-75 VESA UNTESTED */
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{ "1024x600@75", 75, 1024, 600, 61500000, 176, 16, 23, 1, 96, 1,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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/* 10 FIXME 11 1366x768-60 VESA UNTESTED */
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{ "1366x768@60", 60, 1366, 768, 85500000, 256, 58, 18, 1, 112, 3,
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0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
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};
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static struct fb_var_screeninfo unifb_default = {
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.xres = 640,
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.yres = 480,
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.xres_virtual = 640,
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.yres_virtual = 480,
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.bits_per_pixel = 16,
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.red = { 11, 5, 0 },
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.green = { 5, 6, 0 },
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.blue = { 0, 5, 0 },
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.activate = FB_ACTIVATE_NOW,
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.height = -1,
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.width = -1,
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.pixclock = 25175000,
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.left_margin = 48,
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.right_margin = 16,
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.upper_margin = 33,
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.lower_margin = 10,
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.hsync_len = 96,
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.vsync_len = 2,
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.vmode = FB_VMODE_NONINTERLACED,
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};
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static struct fb_fix_screeninfo unifb_fix = {
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.id = "UNIGFX FB",
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.type = FB_TYPE_PACKED_PIXELS,
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.visual = FB_VISUAL_TRUECOLOR,
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.xpanstep = 1,
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.ypanstep = 1,
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.ywrapstep = 1,
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.accel = FB_ACCEL_NONE,
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};
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static void unifb_sync(struct fb_info *info)
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{
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/* TODO: may, this can be replaced by interrupt */
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int cnt;
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for (cnt = 0; cnt < 0x10000000; cnt++) {
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if (readl(UGE_COMMAND) & 0x1000000)
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return;
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}
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if (cnt > 0x8000000)
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dev_warn(info->device, "Warning: UniGFX GE time out ...\n");
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}
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static void unifb_prim_fillrect(struct fb_info *info,
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const struct fb_fillrect *region)
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{
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int awidth = region->width;
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int aheight = region->height;
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int m_iBpp = info->var.bits_per_pixel;
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int screen_width = info->var.xres;
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int src_sel = 1; /* from fg_color */
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int pat_sel = 1;
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int src_x0 = 0;
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int dst_x0 = region->dx;
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int src_y0 = 0;
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int dst_y0 = region->dy;
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int rop_alpha_sel = 0;
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int rop_alpha_code = 0xCC;
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int x_dir = 1;
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int y_dir = 1;
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int alpha_r = 0;
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int alpha_sel = 0;
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int dst_pitch = screen_width * (m_iBpp / 8);
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int dst_offset = dst_y0 * dst_pitch + dst_x0 * (m_iBpp / 8);
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int src_pitch = screen_width * (m_iBpp / 8);
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int src_offset = src_y0 * src_pitch + src_x0 * (m_iBpp / 8);
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unsigned int command = 0;
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int clip_region = 0;
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int clip_en = 0;
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int tp_en = 0;
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int fg_color = 0;
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int bottom = info->var.yres - 1;
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int right = info->var.xres - 1;
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int top = 0;
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bottom = (bottom << 16) | right;
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command = (rop_alpha_sel << 26) | (pat_sel << 18) | (src_sel << 16)
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| (x_dir << 20) | (y_dir << 21) | (command << 24)
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| (clip_region << 23) | (clip_en << 22) | (tp_en << 27);
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src_pitch = (dst_pitch << 16) | src_pitch;
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awidth = awidth | (aheight << 16);
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alpha_r = ((rop_alpha_code & 0xff) << 8) | (alpha_r & 0xff)
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| (alpha_sel << 16);
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src_x0 = (src_x0 & 0x1fff) | ((src_y0 & 0x1fff) << 16);
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dst_x0 = (dst_x0 & 0x1fff) | ((dst_y0 & 0x1fff) << 16);
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fg_color = region->color;
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unifb_sync(info);
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writel(((u32 *)(info->pseudo_palette))[fg_color], UGE_FCOLOR);
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writel(0, UGE_BCOLOR);
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writel(src_pitch, UGE_PITCH);
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writel(src_offset, UGE_SRCSTART);
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writel(dst_offset, UGE_DSTSTART);
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writel(awidth, UGE_WIDHEIGHT);
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writel(top, UGE_CLIP0);
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writel(bottom, UGE_CLIP1);
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writel(alpha_r, UGE_ROPALPHA);
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writel(src_x0, UGE_SRCXY);
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writel(dst_x0, UGE_DSTXY);
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writel(command, UGE_COMMAND);
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}
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static void unifb_fillrect(struct fb_info *info,
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const struct fb_fillrect *region)
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{
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struct fb_fillrect modded;
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int vxres, vyres;
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if (info->flags & FBINFO_HWACCEL_DISABLED) {
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sys_fillrect(info, region);
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return;
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}
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vxres = info->var.xres_virtual;
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vyres = info->var.yres_virtual;
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memcpy(&modded, region, sizeof(struct fb_fillrect));
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if (!modded.width || !modded.height ||
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modded.dx >= vxres || modded.dy >= vyres)
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return;
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if (modded.dx + modded.width > vxres)
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modded.width = vxres - modded.dx;
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if (modded.dy + modded.height > vyres)
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modded.height = vyres - modded.dy;
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unifb_prim_fillrect(info, &modded);
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}
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static void unifb_prim_copyarea(struct fb_info *info,
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const struct fb_copyarea *area)
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{
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int awidth = area->width;
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int aheight = area->height;
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int m_iBpp = info->var.bits_per_pixel;
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int screen_width = info->var.xres;
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int src_sel = 2; /* from mem */
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int pat_sel = 0;
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int src_x0 = area->sx;
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int dst_x0 = area->dx;
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int src_y0 = area->sy;
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int dst_y0 = area->dy;
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int rop_alpha_sel = 0;
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int rop_alpha_code = 0xCC;
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int x_dir = 1;
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int y_dir = 1;
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int alpha_r = 0;
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int alpha_sel = 0;
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int dst_pitch = screen_width * (m_iBpp / 8);
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int dst_offset = dst_y0 * dst_pitch + dst_x0 * (m_iBpp / 8);
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int src_pitch = screen_width * (m_iBpp / 8);
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int src_offset = src_y0 * src_pitch + src_x0 * (m_iBpp / 8);
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unsigned int command = 0;
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int clip_region = 0;
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int clip_en = 1;
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int tp_en = 0;
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int top = 0;
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int bottom = info->var.yres;
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int right = info->var.xres;
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int fg_color = 0;
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int bg_color = 0;
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if (src_x0 < 0)
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src_x0 = 0;
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if (src_y0 < 0)
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src_y0 = 0;
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if (src_y0 - dst_y0 > 0) {
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y_dir = 1;
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} else {
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y_dir = 0;
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src_offset = (src_y0 + aheight) * src_pitch +
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src_x0 * (m_iBpp / 8);
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dst_offset = (dst_y0 + aheight) * dst_pitch +
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dst_x0 * (m_iBpp / 8);
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src_y0 += aheight;
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dst_y0 += aheight;
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}
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command = (rop_alpha_sel << 26) | (pat_sel << 18) | (src_sel << 16) |
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(x_dir << 20) | (y_dir << 21) | (command << 24) |
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(clip_region << 23) | (clip_en << 22) | (tp_en << 27);
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src_pitch = (dst_pitch << 16) | src_pitch;
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awidth = awidth | (aheight << 16);
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alpha_r = ((rop_alpha_code & 0xff) << 8) | (alpha_r & 0xff) |
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(alpha_sel << 16);
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src_x0 = (src_x0 & 0x1fff) | ((src_y0 & 0x1fff) << 16);
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dst_x0 = (dst_x0 & 0x1fff) | ((dst_y0 & 0x1fff) << 16);
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bottom = (bottom << 16) | right;
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unifb_sync(info);
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writel(src_pitch, UGE_PITCH);
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writel(src_offset, UGE_SRCSTART);
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writel(dst_offset, UGE_DSTSTART);
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writel(awidth, UGE_WIDHEIGHT);
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writel(top, UGE_CLIP0);
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writel(bottom, UGE_CLIP1);
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writel(bg_color, UGE_BCOLOR);
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writel(fg_color, UGE_FCOLOR);
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writel(alpha_r, UGE_ROPALPHA);
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writel(src_x0, UGE_SRCXY);
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writel(dst_x0, UGE_DSTXY);
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writel(command, UGE_COMMAND);
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}
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static void unifb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
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{
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struct fb_copyarea modded;
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u32 vxres, vyres;
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modded.sx = area->sx;
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modded.sy = area->sy;
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modded.dx = area->dx;
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modded.dy = area->dy;
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modded.width = area->width;
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modded.height = area->height;
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|
||||
if (info->flags & FBINFO_HWACCEL_DISABLED) {
|
||||
sys_copyarea(info, area);
|
||||
return;
|
||||
}
|
||||
|
||||
vxres = info->var.xres_virtual;
|
||||
vyres = info->var.yres_virtual;
|
||||
|
||||
if (!modded.width || !modded.height ||
|
||||
modded.sx >= vxres || modded.sy >= vyres ||
|
||||
modded.dx >= vxres || modded.dy >= vyres)
|
||||
return;
|
||||
|
||||
if (modded.sx + modded.width > vxres)
|
||||
modded.width = vxres - modded.sx;
|
||||
if (modded.dx + modded.width > vxres)
|
||||
modded.width = vxres - modded.dx;
|
||||
if (modded.sy + modded.height > vyres)
|
||||
modded.height = vyres - modded.sy;
|
||||
if (modded.dy + modded.height > vyres)
|
||||
modded.height = vyres - modded.dy;
|
||||
|
||||
unifb_prim_copyarea(info, &modded);
|
||||
}
|
||||
|
||||
static void unifb_imageblit(struct fb_info *info, const struct fb_image *image)
|
||||
{
|
||||
sys_imageblit(info, image);
|
||||
}
|
||||
|
||||
static u_long get_line_length(int xres_virtual, int bpp)
|
||||
{
|
||||
u_long length;
|
||||
|
||||
length = xres_virtual * bpp;
|
||||
length = (length + 31) & ~31;
|
||||
length >>= 3;
|
||||
return length;
|
||||
}
|
||||
|
||||
/*
|
||||
* Setting the video mode has been split into two parts.
|
||||
* First part, xxxfb_check_var, must not write anything
|
||||
* to hardware, it should only verify and adjust var.
|
||||
* This means it doesn't alter par but it does use hardware
|
||||
* data from it to check this var.
|
||||
*/
|
||||
static int unifb_check_var(struct fb_var_screeninfo *var,
|
||||
struct fb_info *info)
|
||||
{
|
||||
u_long line_length;
|
||||
|
||||
/*
|
||||
* FB_VMODE_CONUPDATE and FB_VMODE_SMOOTH_XPAN are equal!
|
||||
* as FB_VMODE_SMOOTH_XPAN is only used internally
|
||||
*/
|
||||
|
||||
if (var->vmode & FB_VMODE_CONUPDATE) {
|
||||
var->vmode |= FB_VMODE_YWRAP;
|
||||
var->xoffset = info->var.xoffset;
|
||||
var->yoffset = info->var.yoffset;
|
||||
}
|
||||
|
||||
/*
|
||||
* Some very basic checks
|
||||
*/
|
||||
if (!var->xres)
|
||||
var->xres = 1;
|
||||
if (!var->yres)
|
||||
var->yres = 1;
|
||||
if (var->xres > var->xres_virtual)
|
||||
var->xres_virtual = var->xres;
|
||||
if (var->yres > var->yres_virtual)
|
||||
var->yres_virtual = var->yres;
|
||||
if (var->bits_per_pixel <= 1)
|
||||
var->bits_per_pixel = 1;
|
||||
else if (var->bits_per_pixel <= 8)
|
||||
var->bits_per_pixel = 8;
|
||||
else if (var->bits_per_pixel <= 16)
|
||||
var->bits_per_pixel = 16;
|
||||
else if (var->bits_per_pixel <= 24)
|
||||
var->bits_per_pixel = 24;
|
||||
else if (var->bits_per_pixel <= 32)
|
||||
var->bits_per_pixel = 32;
|
||||
else
|
||||
return -EINVAL;
|
||||
|
||||
if (var->xres_virtual < var->xoffset + var->xres)
|
||||
var->xres_virtual = var->xoffset + var->xres;
|
||||
if (var->yres_virtual < var->yoffset + var->yres)
|
||||
var->yres_virtual = var->yoffset + var->yres;
|
||||
|
||||
/*
|
||||
* Memory limit
|
||||
*/
|
||||
line_length =
|
||||
get_line_length(var->xres_virtual, var->bits_per_pixel);
|
||||
if (line_length * var->yres_virtual > UNIFB_MEMSIZE)
|
||||
return -ENOMEM;
|
||||
|
||||
/*
|
||||
* Now that we checked it we alter var. The reason being is that the
|
||||
* video mode passed in might not work but slight changes to it might
|
||||
* make it work. This way we let the user know what is acceptable.
|
||||
*/
|
||||
switch (var->bits_per_pixel) {
|
||||
case 1:
|
||||
case 8:
|
||||
var->red.offset = 0;
|
||||
var->red.length = 8;
|
||||
var->green.offset = 0;
|
||||
var->green.length = 8;
|
||||
var->blue.offset = 0;
|
||||
var->blue.length = 8;
|
||||
var->transp.offset = 0;
|
||||
var->transp.length = 0;
|
||||
break;
|
||||
case 16: /* RGBA 5551 */
|
||||
if (var->transp.length) {
|
||||
var->red.offset = 0;
|
||||
var->red.length = 5;
|
||||
var->green.offset = 5;
|
||||
var->green.length = 5;
|
||||
var->blue.offset = 10;
|
||||
var->blue.length = 5;
|
||||
var->transp.offset = 15;
|
||||
var->transp.length = 1;
|
||||
} else { /* RGB 565 */
|
||||
var->red.offset = 11;
|
||||
var->red.length = 5;
|
||||
var->green.offset = 5;
|
||||
var->green.length = 6;
|
||||
var->blue.offset = 0;
|
||||
var->blue.length = 5;
|
||||
var->transp.offset = 0;
|
||||
var->transp.length = 0;
|
||||
}
|
||||
break;
|
||||
case 24: /* RGB 888 */
|
||||
var->red.offset = 0;
|
||||
var->red.length = 8;
|
||||
var->green.offset = 8;
|
||||
var->green.length = 8;
|
||||
var->blue.offset = 16;
|
||||
var->blue.length = 8;
|
||||
var->transp.offset = 0;
|
||||
var->transp.length = 0;
|
||||
break;
|
||||
case 32: /* RGBA 8888 */
|
||||
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->transp.offset = 24;
|
||||
var->transp.length = 8;
|
||||
break;
|
||||
}
|
||||
var->red.msb_right = 0;
|
||||
var->green.msb_right = 0;
|
||||
var->blue.msb_right = 0;
|
||||
var->transp.msb_right = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* This routine actually sets the video mode. It's in here where we
|
||||
* the hardware state info->par and fix which can be affected by the
|
||||
* change in par. For this driver it doesn't do much.
|
||||
*/
|
||||
static int unifb_set_par(struct fb_info *info)
|
||||
{
|
||||
int hTotal, vTotal, hSyncStart, hSyncEnd, vSyncStart, vSyncEnd;
|
||||
int format;
|
||||
|
||||
#ifdef CONFIG_PUV3_PM
|
||||
struct clk *clk_vga;
|
||||
u32 pixclk = 0;
|
||||
int i;
|
||||
|
||||
for (i = 0; i <= 10; i++) {
|
||||
if (info->var.xres == unifb_modes[i].xres
|
||||
&& info->var.yres == unifb_modes[i].yres
|
||||
&& info->var.upper_margin == unifb_modes[i].upper_margin
|
||||
&& info->var.lower_margin == unifb_modes[i].lower_margin
|
||||
&& info->var.left_margin == unifb_modes[i].left_margin
|
||||
&& info->var.right_margin == unifb_modes[i].right_margin
|
||||
&& info->var.hsync_len == unifb_modes[i].hsync_len
|
||||
&& info->var.vsync_len == unifb_modes[i].vsync_len) {
|
||||
pixclk = unifb_modes[i].pixclock;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* set clock rate */
|
||||
clk_vga = clk_get(info->device, "VGA_CLK");
|
||||
if (clk_vga == ERR_PTR(-ENOENT))
|
||||
return -ENOENT;
|
||||
|
||||
if (pixclk != 0) {
|
||||
if (clk_set_rate(clk_vga, pixclk)) { /* set clock failed */
|
||||
info->fix = unifb_fix;
|
||||
info->var = unifb_default;
|
||||
if (clk_set_rate(clk_vga, unifb_default.pixclock))
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
info->fix.line_length = get_line_length(info->var.xres_virtual,
|
||||
info->var.bits_per_pixel);
|
||||
|
||||
hSyncStart = info->var.xres + info->var.right_margin;
|
||||
hSyncEnd = hSyncStart + info->var.hsync_len;
|
||||
hTotal = hSyncEnd + info->var.left_margin;
|
||||
|
||||
vSyncStart = info->var.yres + info->var.lower_margin;
|
||||
vSyncEnd = vSyncStart + info->var.vsync_len;
|
||||
vTotal = vSyncEnd + info->var.upper_margin;
|
||||
|
||||
switch (info->var.bits_per_pixel) {
|
||||
case 8:
|
||||
format = UDE_CFG_DST8;
|
||||
break;
|
||||
case 16:
|
||||
format = UDE_CFG_DST16;
|
||||
break;
|
||||
case 24:
|
||||
format = UDE_CFG_DST24;
|
||||
break;
|
||||
case 32:
|
||||
format = UDE_CFG_DST32;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
writel(PKUNITY_UNIGFX_MMAP_BASE, UDE_FSA);
|
||||
writel(info->var.yres, UDE_LS);
|
||||
writel(get_line_length(info->var.xres,
|
||||
info->var.bits_per_pixel) >> 3, UDE_PS);
|
||||
/* >> 3 for hardware required. */
|
||||
writel((hTotal << 16) | (info->var.xres), UDE_HAT);
|
||||
writel(((hTotal - 1) << 16) | (info->var.xres - 1), UDE_HBT);
|
||||
writel(((hSyncEnd - 1) << 16) | (hSyncStart - 1), UDE_HST);
|
||||
writel((vTotal << 16) | (info->var.yres), UDE_VAT);
|
||||
writel(((vTotal - 1) << 16) | (info->var.yres - 1), UDE_VBT);
|
||||
writel(((vSyncEnd - 1) << 16) | (vSyncStart - 1), UDE_VST);
|
||||
writel(UDE_CFG_GDEN_ENABLE | UDE_CFG_TIMEUP_ENABLE
|
||||
| format | 0xC0000001, UDE_CFG);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Set a single color register. The values supplied are already
|
||||
* rounded down to the hardware's capabilities (according to the
|
||||
* entries in the var structure). Return != 0 for invalid regno.
|
||||
*/
|
||||
static int unifb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
|
||||
u_int transp, struct fb_info *info)
|
||||
{
|
||||
if (regno >= 256) /* no. of hw registers */
|
||||
return 1;
|
||||
|
||||
/* grayscale works only partially under directcolor */
|
||||
if (info->var.grayscale) {
|
||||
/* grayscale = 0.30*R + 0.59*G + 0.11*B */
|
||||
red = green = blue =
|
||||
(red * 77 + green * 151 + blue * 28) >> 8;
|
||||
}
|
||||
|
||||
#define CNVT_TOHW(val, width) ((((val)<<(width))+0x7FFF-(val))>>16)
|
||||
switch (info->fix.visual) {
|
||||
case FB_VISUAL_TRUECOLOR:
|
||||
case FB_VISUAL_PSEUDOCOLOR:
|
||||
red = CNVT_TOHW(red, info->var.red.length);
|
||||
green = CNVT_TOHW(green, info->var.green.length);
|
||||
blue = CNVT_TOHW(blue, info->var.blue.length);
|
||||
transp = CNVT_TOHW(transp, info->var.transp.length);
|
||||
break;
|
||||
case FB_VISUAL_DIRECTCOLOR:
|
||||
red = CNVT_TOHW(red, 8); /* expect 8 bit DAC */
|
||||
green = CNVT_TOHW(green, 8);
|
||||
blue = CNVT_TOHW(blue, 8);
|
||||
/* hey, there is bug in transp handling... */
|
||||
transp = CNVT_TOHW(transp, 8);
|
||||
break;
|
||||
}
|
||||
#undef CNVT_TOHW
|
||||
/* Truecolor has hardware independent palette */
|
||||
if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
|
||||
u32 v;
|
||||
|
||||
if (regno >= 16)
|
||||
return 1;
|
||||
|
||||
v = (red << info->var.red.offset) |
|
||||
(green << info->var.green.offset) |
|
||||
(blue << info->var.blue.offset) |
|
||||
(transp << info->var.transp.offset);
|
||||
switch (info->var.bits_per_pixel) {
|
||||
case 8:
|
||||
break;
|
||||
case 16:
|
||||
case 24:
|
||||
case 32:
|
||||
((u32 *) (info->pseudo_palette))[regno] = v;
|
||||
break;
|
||||
default:
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Pan or Wrap the Display
|
||||
*
|
||||
* This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
|
||||
*/
|
||||
static int unifb_pan_display(struct fb_var_screeninfo *var,
|
||||
struct fb_info *info)
|
||||
{
|
||||
if (var->vmode & FB_VMODE_YWRAP) {
|
||||
if (var->yoffset < 0
|
||||
|| var->yoffset >= info->var.yres_virtual
|
||||
|| var->xoffset)
|
||||
return -EINVAL;
|
||||
} else {
|
||||
if (var->xoffset + var->xres > info->var.xres_virtual ||
|
||||
var->yoffset + var->yres > info->var.yres_virtual)
|
||||
return -EINVAL;
|
||||
}
|
||||
info->var.xoffset = var->xoffset;
|
||||
info->var.yoffset = var->yoffset;
|
||||
if (var->vmode & FB_VMODE_YWRAP)
|
||||
info->var.vmode |= FB_VMODE_YWRAP;
|
||||
else
|
||||
info->var.vmode &= ~FB_VMODE_YWRAP;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int unifb_mmap(struct fb_info *info,
|
||||
struct vm_area_struct *vma)
|
||||
{
|
||||
unsigned long size = vma->vm_end - vma->vm_start;
|
||||
unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
|
||||
unsigned long pos = info->fix.smem_start + offset;
|
||||
|
||||
if (offset + size > info->fix.smem_len)
|
||||
return -EINVAL;
|
||||
|
||||
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
|
||||
|
||||
if (io_remap_pfn_range(vma, vma->vm_start, pos >> PAGE_SHIFT, size,
|
||||
vma->vm_page_prot))
|
||||
return -EAGAIN;
|
||||
|
||||
vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
static struct fb_ops unifb_ops = {
|
||||
.fb_read = fb_sys_read,
|
||||
.fb_write = fb_sys_write,
|
||||
.fb_check_var = unifb_check_var,
|
||||
.fb_set_par = unifb_set_par,
|
||||
.fb_setcolreg = unifb_setcolreg,
|
||||
.fb_pan_display = unifb_pan_display,
|
||||
.fb_fillrect = unifb_fillrect,
|
||||
.fb_copyarea = unifb_copyarea,
|
||||
.fb_imageblit = unifb_imageblit,
|
||||
.fb_mmap = unifb_mmap,
|
||||
};
|
||||
|
||||
/*
|
||||
* Initialisation
|
||||
*/
|
||||
static int unifb_probe(struct platform_device *dev)
|
||||
{
|
||||
struct fb_info *info;
|
||||
u32 unifb_regs[UNIFB_REGS_NUM];
|
||||
int retval = -ENOMEM;
|
||||
struct resource *iomem, *mapmem;
|
||||
|
||||
info = framebuffer_alloc(sizeof(u32)*256, &dev->dev);
|
||||
if (!info)
|
||||
goto err;
|
||||
|
||||
info->screen_base = (char __iomem *)KUSER_UNIGFX_BASE;
|
||||
info->fbops = &unifb_ops;
|
||||
|
||||
retval = fb_find_mode(&info->var, info, NULL,
|
||||
unifb_modes, 10, &unifb_modes[0], 16);
|
||||
|
||||
if (!retval || (retval == 4))
|
||||
info->var = unifb_default;
|
||||
|
||||
iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
|
||||
unifb_fix.mmio_start = iomem->start;
|
||||
|
||||
mapmem = platform_get_resource(dev, IORESOURCE_MEM, 1);
|
||||
unifb_fix.smem_start = mapmem->start;
|
||||
unifb_fix.smem_len = UNIFB_MEMSIZE;
|
||||
|
||||
info->fix = unifb_fix;
|
||||
info->pseudo_palette = info->par;
|
||||
info->par = NULL;
|
||||
info->flags = FBINFO_FLAG_DEFAULT;
|
||||
#ifdef FB_ACCEL_PUV3_UNIGFX
|
||||
info->fix.accel = FB_ACCEL_PUV3_UNIGFX;
|
||||
#endif
|
||||
|
||||
retval = fb_alloc_cmap(&info->cmap, 256, 0);
|
||||
if (retval < 0)
|
||||
goto err1;
|
||||
|
||||
retval = register_framebuffer(info);
|
||||
if (retval < 0)
|
||||
goto err2;
|
||||
platform_set_drvdata(dev, info);
|
||||
platform_device_add_data(dev, unifb_regs, sizeof(u32) * UNIFB_REGS_NUM);
|
||||
|
||||
printk(KERN_INFO
|
||||
"fb%d: Virtual frame buffer device, using %dM of video memory\n",
|
||||
info->node, UNIFB_MEMSIZE >> 20);
|
||||
return 0;
|
||||
err2:
|
||||
fb_dealloc_cmap(&info->cmap);
|
||||
err1:
|
||||
framebuffer_release(info);
|
||||
err:
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int unifb_remove(struct platform_device *dev)
|
||||
{
|
||||
struct fb_info *info = platform_get_drvdata(dev);
|
||||
|
||||
if (info) {
|
||||
unregister_framebuffer(info);
|
||||
fb_dealloc_cmap(&info->cmap);
|
||||
framebuffer_release(info);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int unifb_resume(struct platform_device *dev)
|
||||
{
|
||||
int rc = 0;
|
||||
u32 *unifb_regs = dev->dev.platform_data;
|
||||
|
||||
if (dev->dev.power.power_state.event == PM_EVENT_ON)
|
||||
return 0;
|
||||
|
||||
console_lock();
|
||||
|
||||
if (dev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
|
||||
writel(unifb_regs[0], UDE_FSA);
|
||||
writel(unifb_regs[1], UDE_LS);
|
||||
writel(unifb_regs[2], UDE_PS);
|
||||
writel(unifb_regs[3], UDE_HAT);
|
||||
writel(unifb_regs[4], UDE_HBT);
|
||||
writel(unifb_regs[5], UDE_HST);
|
||||
writel(unifb_regs[6], UDE_VAT);
|
||||
writel(unifb_regs[7], UDE_VBT);
|
||||
writel(unifb_regs[8], UDE_VST);
|
||||
writel(unifb_regs[9], UDE_CFG);
|
||||
}
|
||||
dev->dev.power.power_state = PMSG_ON;
|
||||
|
||||
console_unlock();
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int unifb_suspend(struct platform_device *dev, pm_message_t mesg)
|
||||
{
|
||||
u32 *unifb_regs = dev->dev.platform_data;
|
||||
|
||||
unifb_regs[0] = readl(UDE_FSA);
|
||||
unifb_regs[1] = readl(UDE_LS);
|
||||
unifb_regs[2] = readl(UDE_PS);
|
||||
unifb_regs[3] = readl(UDE_HAT);
|
||||
unifb_regs[4] = readl(UDE_HBT);
|
||||
unifb_regs[5] = readl(UDE_HST);
|
||||
unifb_regs[6] = readl(UDE_VAT);
|
||||
unifb_regs[7] = readl(UDE_VBT);
|
||||
unifb_regs[8] = readl(UDE_VST);
|
||||
unifb_regs[9] = readl(UDE_CFG);
|
||||
|
||||
if (mesg.event == dev->dev.power.power_state.event)
|
||||
return 0;
|
||||
|
||||
switch (mesg.event) {
|
||||
case PM_EVENT_FREEZE: /* about to take snapshot */
|
||||
case PM_EVENT_PRETHAW: /* before restoring snapshot */
|
||||
goto done;
|
||||
}
|
||||
|
||||
console_lock();
|
||||
|
||||
/* do nothing... */
|
||||
|
||||
console_unlock();
|
||||
|
||||
done:
|
||||
dev->dev.power.power_state = mesg;
|
||||
|
||||
return 0;
|
||||
}
|
||||
#else
|
||||
#define unifb_resume NULL
|
||||
#define unifb_suspend NULL
|
||||
#endif
|
||||
|
||||
static struct platform_driver unifb_driver = {
|
||||
.probe = unifb_probe,
|
||||
.remove = unifb_remove,
|
||||
.resume = unifb_resume,
|
||||
.suspend = unifb_suspend,
|
||||
.driver = {
|
||||
.name = "PKUnity-v3-UNIGFX",
|
||||
},
|
||||
};
|
||||
|
||||
static int __init unifb_init(void)
|
||||
{
|
||||
#ifndef MODULE
|
||||
if (fb_get_options("unifb", NULL))
|
||||
return -ENODEV;
|
||||
#endif
|
||||
|
||||
return platform_driver_register(&unifb_driver);
|
||||
}
|
||||
|
||||
module_init(unifb_init);
|
||||
|
||||
static void __exit unifb_exit(void)
|
||||
{
|
||||
platform_driver_unregister(&unifb_driver);
|
||||
}
|
||||
|
||||
module_exit(unifb_exit);
|
||||
|
||||
MODULE_LICENSE("GPL v2");
|
||||
@ -152,6 +152,8 @@
|
||||
#define FB_ACCEL_PROSAVAGE_DDR 0x8d /* S3 ProSavage DDR */
|
||||
#define FB_ACCEL_PROSAVAGE_DDRK 0x8e /* S3 ProSavage DDR-K */
|
||||
|
||||
#define FB_ACCEL_PUV3_UNIGFX 0xa0 /* PKUnity-v3 Unigfx */
|
||||
|
||||
struct fb_fix_screeninfo {
|
||||
char id[16]; /* identification string eg "TT Builtin" */
|
||||
unsigned long smem_start; /* Start of frame buffer mem */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user