diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
---|---|---|
committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/cg14.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/cg14.c')
-rw-r--r-- | drivers/video/cg14.c | 626 |
1 files changed, 0 insertions, 626 deletions
diff --git a/drivers/video/cg14.c b/drivers/video/cg14.c deleted file mode 100644 index c79745b136b..00000000000 --- a/drivers/video/cg14.c +++ /dev/null @@ -1,626 +0,0 @@ -/* cg14.c: CGFOURTEEN frame buffer driver - * - * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996,1998 Jakub Jelinek (jj@ultra.linux.cz) - * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx) - * - * Driver layout based loosely on tgafb.c, see that file for credits. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/fb.h> -#include <linux/mm.h> -#include <linux/uaccess.h> -#include <linux/of_device.h> - -#include <asm/io.h> -#include <asm/fbio.h> - -#include "sbuslib.h" - -/* - * Local functions. - */ - -static int cg14_setcolreg(unsigned, unsigned, unsigned, unsigned, - unsigned, struct fb_info *); - -static int cg14_mmap(struct fb_info *, struct vm_area_struct *); -static int cg14_ioctl(struct fb_info *, unsigned int, unsigned long); -static int cg14_pan_display(struct fb_var_screeninfo *, struct fb_info *); - -/* - * Frame buffer operations - */ - -static struct fb_ops cg14_ops = { - .owner = THIS_MODULE, - .fb_setcolreg = cg14_setcolreg, - .fb_pan_display = cg14_pan_display, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, - .fb_mmap = cg14_mmap, - .fb_ioctl = cg14_ioctl, -#ifdef CONFIG_COMPAT - .fb_compat_ioctl = sbusfb_compat_ioctl, -#endif -}; - -#define CG14_MCR_INTENABLE_SHIFT 7 -#define CG14_MCR_INTENABLE_MASK 0x80 -#define CG14_MCR_VIDENABLE_SHIFT 6 -#define CG14_MCR_VIDENABLE_MASK 0x40 -#define CG14_MCR_PIXMODE_SHIFT 4 -#define CG14_MCR_PIXMODE_MASK 0x30 -#define CG14_MCR_TMR_SHIFT 2 -#define CG14_MCR_TMR_MASK 0x0c -#define CG14_MCR_TMENABLE_SHIFT 1 -#define CG14_MCR_TMENABLE_MASK 0x02 -#define CG14_MCR_RESET_SHIFT 0 -#define CG14_MCR_RESET_MASK 0x01 -#define CG14_REV_REVISION_SHIFT 4 -#define CG14_REV_REVISION_MASK 0xf0 -#define CG14_REV_IMPL_SHIFT 0 -#define CG14_REV_IMPL_MASK 0x0f -#define CG14_VBR_FRAMEBASE_SHIFT 12 -#define CG14_VBR_FRAMEBASE_MASK 0x00fff000 -#define CG14_VMCR1_SETUP_SHIFT 0 -#define CG14_VMCR1_SETUP_MASK 0x000001ff -#define CG14_VMCR1_VCONFIG_SHIFT 9 -#define CG14_VMCR1_VCONFIG_MASK 0x00000e00 -#define CG14_VMCR2_REFRESH_SHIFT 0 -#define CG14_VMCR2_REFRESH_MASK 0x00000001 -#define CG14_VMCR2_TESTROWCNT_SHIFT 1 -#define CG14_VMCR2_TESTROWCNT_MASK 0x00000002 -#define CG14_VMCR2_FBCONFIG_SHIFT 2 -#define CG14_VMCR2_FBCONFIG_MASK 0x0000000c -#define CG14_VCR_REFRESHREQ_SHIFT 0 -#define CG14_VCR_REFRESHREQ_MASK 0x000003ff -#define CG14_VCR1_REFRESHENA_SHIFT 10 -#define CG14_VCR1_REFRESHENA_MASK 0x00000400 -#define CG14_VCA_CAD_SHIFT 0 -#define CG14_VCA_CAD_MASK 0x000003ff -#define CG14_VCA_VERS_SHIFT 10 -#define CG14_VCA_VERS_MASK 0x00000c00 -#define CG14_VCA_RAMSPEED_SHIFT 12 -#define CG14_VCA_RAMSPEED_MASK 0x00001000 -#define CG14_VCA_8MB_SHIFT 13 -#define CG14_VCA_8MB_MASK 0x00002000 - -#define CG14_MCR_PIXMODE_8 0 -#define CG14_MCR_PIXMODE_16 2 -#define CG14_MCR_PIXMODE_32 3 - -struct cg14_regs{ - u8 mcr; /* Master Control Reg */ - u8 ppr; /* Packed Pixel Reg */ - u8 tms[2]; /* Test Mode Status Regs */ - u8 msr; /* Master Status Reg */ - u8 fsr; /* Fault Status Reg */ - u8 rev; /* Revision & Impl */ - u8 ccr; /* Clock Control Reg */ - u32 tmr; /* Test Mode Read Back */ - u8 mod; /* Monitor Operation Data Reg */ - u8 acr; /* Aux Control */ - u8 xxx0[6]; - u16 hct; /* Hor Counter */ - u16 vct; /* Vert Counter */ - u16 hbs; /* Hor Blank Start */ - u16 hbc; /* Hor Blank Clear */ - u16 hss; /* Hor Sync Start */ - u16 hsc; /* Hor Sync Clear */ - u16 csc; /* Composite Sync Clear */ - u16 vbs; /* Vert Blank Start */ - u16 vbc; /* Vert Blank Clear */ - u16 vss; /* Vert Sync Start */ - u16 vsc; /* Vert Sync Clear */ - u16 xcs; - u16 xcc; - u16 fsa; /* Fault Status Address */ - u16 adr; /* Address Registers */ - u8 xxx1[0xce]; - u8 pcg[0x100]; /* Pixel Clock Generator */ - u32 vbr; /* Frame Base Row */ - u32 vmcr; /* VBC Master Control */ - u32 vcr; /* VBC refresh */ - u32 vca; /* VBC Config */ -}; - -#define CG14_CCR_ENABLE 0x04 -#define CG14_CCR_SELECT 0x02 /* HW/Full screen */ - -struct cg14_cursor { - u32 cpl0[32]; /* Enable plane 0 */ - u32 cpl1[32]; /* Color selection plane */ - u8 ccr; /* Cursor Control Reg */ - u8 xxx0[3]; - u16 cursx; /* Cursor x,y position */ - u16 cursy; /* Cursor x,y position */ - u32 color0; - u32 color1; - u32 xxx1[0x1bc]; - u32 cpl0i[32]; /* Enable plane 0 autoinc */ - u32 cpl1i[32]; /* Color selection autoinc */ -}; - -struct cg14_dac { - u8 addr; /* Address Register */ - u8 xxx0[255]; - u8 glut; /* Gamma table */ - u8 xxx1[255]; - u8 select; /* Register Select */ - u8 xxx2[255]; - u8 mode; /* Mode Register */ -}; - -struct cg14_xlut{ - u8 x_xlut [256]; - u8 x_xlutd [256]; - u8 xxx0[0x600]; - u8 x_xlut_inc [256]; - u8 x_xlutd_inc [256]; -}; - -/* Color look up table (clut) */ -/* Each one of these arrays hold the color lookup table (for 256 - * colors) for each MDI page (I assume then there should be 4 MDI - * pages, I still wonder what they are. I have seen NeXTStep split - * the screen in four parts, while operating in 24 bits mode. Each - * integer holds 4 values: alpha value (transparency channel, thanks - * go to John Stone (johns@umr.edu) from OpenBSD), red, green and blue - * - * I currently use the clut instead of the Xlut - */ -struct cg14_clut { - u32 c_clut [256]; - u32 c_clutd [256]; /* i wonder what the 'd' is for */ - u32 c_clut_inc [256]; - u32 c_clutd_inc [256]; -}; - -#define CG14_MMAP_ENTRIES 16 - -struct cg14_par { - spinlock_t lock; - struct cg14_regs __iomem *regs; - struct cg14_clut __iomem *clut; - struct cg14_cursor __iomem *cursor; - - u32 flags; -#define CG14_FLAG_BLANKED 0x00000001 - - unsigned long iospace; - - struct sbus_mmap_map mmap_map[CG14_MMAP_ENTRIES]; - - int mode; - int ramsize; -}; - -static void __cg14_reset(struct cg14_par *par) -{ - struct cg14_regs __iomem *regs = par->regs; - u8 val; - - val = sbus_readb(®s->mcr); - val &= ~(CG14_MCR_PIXMODE_MASK); - sbus_writeb(val, ®s->mcr); -} - -static int cg14_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) -{ - struct cg14_par *par = (struct cg14_par *) info->par; - unsigned long flags; - - /* We just use this to catch switches out of - * graphics mode. - */ - spin_lock_irqsave(&par->lock, flags); - __cg14_reset(par); - spin_unlock_irqrestore(&par->lock, flags); - - if (var->xoffset || var->yoffset || var->vmode) - return -EINVAL; - return 0; -} - -/** - * cg14_setcolreg - Optional function. Sets a color register. - * @regno: boolean, 0 copy local, 1 get_user() function - * @red: frame buffer colormap structure - * @green: The green value which can be up to 16 bits wide - * @blue: The blue value which can be up to 16 bits wide. - * @transp: If supported the alpha value which can be up to 16 bits wide. - * @info: frame buffer info structure - */ -static int cg14_setcolreg(unsigned regno, - unsigned red, unsigned green, unsigned blue, - unsigned transp, struct fb_info *info) -{ - struct cg14_par *par = (struct cg14_par *) info->par; - struct cg14_clut __iomem *clut = par->clut; - unsigned long flags; - u32 val; - - if (regno >= 256) - return 1; - - red >>= 8; - green >>= 8; - blue >>= 8; - val = (red | (green << 8) | (blue << 16)); - - spin_lock_irqsave(&par->lock, flags); - sbus_writel(val, &clut->c_clut[regno]); - spin_unlock_irqrestore(&par->lock, flags); - - return 0; -} - -static int cg14_mmap(struct fb_info *info, struct vm_area_struct *vma) -{ - struct cg14_par *par = (struct cg14_par *) info->par; - - return sbusfb_mmap_helper(par->mmap_map, - info->fix.smem_start, info->fix.smem_len, - par->iospace, vma); -} - -static int cg14_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) -{ - struct cg14_par *par = (struct cg14_par *) info->par; - struct cg14_regs __iomem *regs = par->regs; - struct mdi_cfginfo kmdi, __user *mdii; - unsigned long flags; - int cur_mode, mode, ret = 0; - - switch (cmd) { - case MDI_RESET: - spin_lock_irqsave(&par->lock, flags); - __cg14_reset(par); - spin_unlock_irqrestore(&par->lock, flags); - break; - - case MDI_GET_CFGINFO: - memset(&kmdi, 0, sizeof(kmdi)); - - spin_lock_irqsave(&par->lock, flags); - kmdi.mdi_type = FBTYPE_MDICOLOR; - kmdi.mdi_height = info->var.yres; - kmdi.mdi_width = info->var.xres; - kmdi.mdi_mode = par->mode; - kmdi.mdi_pixfreq = 72; /* FIXME */ - kmdi.mdi_size = par->ramsize; - spin_unlock_irqrestore(&par->lock, flags); - - mdii = (struct mdi_cfginfo __user *) arg; - if (copy_to_user(mdii, &kmdi, sizeof(kmdi))) - ret = -EFAULT; - break; - - case MDI_SET_PIXELMODE: - if (get_user(mode, (int __user *) arg)) { - ret = -EFAULT; - break; - } - - spin_lock_irqsave(&par->lock, flags); - cur_mode = sbus_readb(®s->mcr); - cur_mode &= ~CG14_MCR_PIXMODE_MASK; - switch(mode) { - case MDI_32_PIX: - cur_mode |= (CG14_MCR_PIXMODE_32 << - CG14_MCR_PIXMODE_SHIFT); - break; - - case MDI_16_PIX: - cur_mode |= (CG14_MCR_PIXMODE_16 << - CG14_MCR_PIXMODE_SHIFT); - break; - - case MDI_8_PIX: - break; - - default: - ret = -ENOSYS; - break; - } - if (!ret) { - sbus_writeb(cur_mode, ®s->mcr); - par->mode = mode; - } - spin_unlock_irqrestore(&par->lock, flags); - break; - - default: - ret = sbusfb_ioctl_helper(cmd, arg, info, - FBTYPE_MDICOLOR, 8, - info->fix.smem_len); - break; - } - - return ret; -} - -/* - * Initialisation - */ - -static void cg14_init_fix(struct fb_info *info, int linebytes, - struct device_node *dp) -{ - const char *name = dp->name; - - strlcpy(info->fix.id, name, sizeof(info->fix.id)); - - info->fix.type = FB_TYPE_PACKED_PIXELS; - info->fix.visual = FB_VISUAL_PSEUDOCOLOR; - - info->fix.line_length = linebytes; - - info->fix.accel = FB_ACCEL_SUN_CG14; -} - -static struct sbus_mmap_map __cg14_mmap_map[CG14_MMAP_ENTRIES] = { - { - .voff = CG14_REGS, - .poff = 0x80000000, - .size = 0x1000 - }, - { - .voff = CG14_XLUT, - .poff = 0x80003000, - .size = 0x1000 - }, - { - .voff = CG14_CLUT1, - .poff = 0x80004000, - .size = 0x1000 - }, - { - .voff = CG14_CLUT2, - .poff = 0x80005000, - .size = 0x1000 - }, - { - .voff = CG14_CLUT3, - .poff = 0x80006000, - .size = 0x1000 - }, - { - .voff = CG3_MMAP_OFFSET - 0x7000, - .poff = 0x80000000, - .size = 0x7000 - }, - { - .voff = CG3_MMAP_OFFSET, - .poff = 0x00000000, - .size = SBUS_MMAP_FBSIZE(1) - }, - { - .voff = MDI_CURSOR_MAP, - .poff = 0x80001000, - .size = 0x1000 - }, - { - .voff = MDI_CHUNKY_BGR_MAP, - .poff = 0x01000000, - .size = 0x400000 - }, - { - .voff = MDI_PLANAR_X16_MAP, - .poff = 0x02000000, - .size = 0x200000 - }, - { - .voff = MDI_PLANAR_C16_MAP, - .poff = 0x02800000, - .size = 0x200000 - }, - { - .voff = MDI_PLANAR_X32_MAP, - .poff = 0x03000000, - .size = 0x100000 - }, - { - .voff = MDI_PLANAR_B32_MAP, - .poff = 0x03400000, - .size = 0x100000 - }, - { - .voff = MDI_PLANAR_G32_MAP, - .poff = 0x03800000, - .size = 0x100000 - }, - { - .voff = MDI_PLANAR_R32_MAP, - .poff = 0x03c00000, - .size = 0x100000 - }, - { .size = 0 } -}; - -static void cg14_unmap_regs(struct platform_device *op, struct fb_info *info, - struct cg14_par *par) -{ - if (par->regs) - of_iounmap(&op->resource[0], - par->regs, sizeof(struct cg14_regs)); - if (par->clut) - of_iounmap(&op->resource[0], - par->clut, sizeof(struct cg14_clut)); - if (par->cursor) - of_iounmap(&op->resource[0], - par->cursor, sizeof(struct cg14_cursor)); - if (info->screen_base) - of_iounmap(&op->resource[1], - info->screen_base, info->fix.smem_len); -} - -static int cg14_probe(struct platform_device *op) -{ - struct device_node *dp = op->dev.of_node; - struct fb_info *info; - struct cg14_par *par; - int is_8mb, linebytes, i, err; - - info = framebuffer_alloc(sizeof(struct cg14_par), &op->dev); - - err = -ENOMEM; - if (!info) - goto out_err; - par = info->par; - - spin_lock_init(&par->lock); - - sbusfb_fill_var(&info->var, dp, 8); - info->var.red.length = 8; - info->var.green.length = 8; - info->var.blue.length = 8; - - linebytes = of_getintprop_default(dp, "linebytes", - info->var.xres); - info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres); - - if (!strcmp(dp->parent->name, "sbus") || - !strcmp(dp->parent->name, "sbi")) { - info->fix.smem_start = op->resource[0].start; - par->iospace = op->resource[0].flags & IORESOURCE_BITS; - } else { - info->fix.smem_start = op->resource[1].start; - par->iospace = op->resource[0].flags & IORESOURCE_BITS; - } - - par->regs = of_ioremap(&op->resource[0], 0, - sizeof(struct cg14_regs), "cg14 regs"); - par->clut = of_ioremap(&op->resource[0], CG14_CLUT1, - sizeof(struct cg14_clut), "cg14 clut"); - par->cursor = of_ioremap(&op->resource[0], CG14_CURSORREGS, - sizeof(struct cg14_cursor), "cg14 cursor"); - - info->screen_base = of_ioremap(&op->resource[1], 0, - info->fix.smem_len, "cg14 ram"); - - if (!par->regs || !par->clut || !par->cursor || !info->screen_base) - goto out_unmap_regs; - - is_8mb = (((op->resource[1].end - op->resource[1].start) + 1) == - (8 * 1024 * 1024)); - - BUILD_BUG_ON(sizeof(par->mmap_map) != sizeof(__cg14_mmap_map)); - - memcpy(&par->mmap_map, &__cg14_mmap_map, sizeof(par->mmap_map)); - - for (i = 0; i < CG14_MMAP_ENTRIES; i++) { - struct sbus_mmap_map *map = &par->mmap_map[i]; - - if (!map->size) - break; - if (map->poff & 0x80000000) - map->poff = (map->poff & 0x7fffffff) + - (op->resource[0].start - - op->resource[1].start); - if (is_8mb && - map->size >= 0x100000 && - map->size <= 0x400000) - map->size *= 2; - } - - par->mode = MDI_8_PIX; - par->ramsize = (is_8mb ? 0x800000 : 0x400000); - - info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; - info->fbops = &cg14_ops; - - __cg14_reset(par); - - if (fb_alloc_cmap(&info->cmap, 256, 0)) - goto out_unmap_regs; - - fb_set_cmap(&info->cmap, info); - - cg14_init_fix(info, linebytes, dp); - - err = register_framebuffer(info); - if (err < 0) - goto out_dealloc_cmap; - - dev_set_drvdata(&op->dev, info); - - printk(KERN_INFO "%s: cgfourteen at %lx:%lx, %dMB\n", - dp->full_name, - par->iospace, info->fix.smem_start, - par->ramsize >> 20); - - return 0; - -out_dealloc_cmap: - fb_dealloc_cmap(&info->cmap); - -out_unmap_regs: - cg14_unmap_regs(op, info, par); - framebuffer_release(info); - -out_err: - return err; -} - -static int cg14_remove(struct platform_device *op) -{ - struct fb_info *info = dev_get_drvdata(&op->dev); - struct cg14_par *par = info->par; - - unregister_framebuffer(info); - fb_dealloc_cmap(&info->cmap); - - cg14_unmap_regs(op, info, par); - - framebuffer_release(info); - - return 0; -} - -static const struct of_device_id cg14_match[] = { - { - .name = "cgfourteen", - }, - {}, -}; -MODULE_DEVICE_TABLE(of, cg14_match); - -static struct platform_driver cg14_driver = { - .driver = { - .name = "cg14", - .owner = THIS_MODULE, - .of_match_table = cg14_match, - }, - .probe = cg14_probe, - .remove = cg14_remove, -}; - -static int __init cg14_init(void) -{ - if (fb_get_options("cg14fb", NULL)) - return -ENODEV; - - return platform_driver_register(&cg14_driver); -} - -static void __exit cg14_exit(void) -{ - platform_driver_unregister(&cg14_driver); -} - -module_init(cg14_init); -module_exit(cg14_exit); - -MODULE_DESCRIPTION("framebuffer driver for CGfourteen chipsets"); -MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); -MODULE_VERSION("2.0"); -MODULE_LICENSE("GPL"); |