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author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/carminefb.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | linux-stable-f7018c21350204c4cf628462f229d44d03545254.tar.gz linux-stable-f7018c21350204c4cf628462f229d44d03545254.tar.bz2 linux-stable-f7018c21350204c4cf628462f229d44d03545254.zip |
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/carminefb.c')
-rw-r--r-- | drivers/video/carminefb.c | 788 |
1 files changed, 0 insertions, 788 deletions
diff --git a/drivers/video/carminefb.c b/drivers/video/carminefb.c deleted file mode 100644 index 65f7c15f5fdb..000000000000 --- a/drivers/video/carminefb.c +++ /dev/null @@ -1,788 +0,0 @@ -/* - * Frame buffer driver for the Carmine GPU. - * - * The driver configures the GPU as follows - * - FB0 is display 0 with unique memory area - * - FB1 is display 1 with unique memory area - * - both display use 32 bit colors - */ -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/fb.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/slab.h> -#include <linux/module.h> - -#include "carminefb.h" -#include "carminefb_regs.h" - -#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN) -#error "The endianness of the target host has not been defined." -#endif - -/* - * The initial video mode can be supplied via two different ways: - * - as a string that is passed to fb_find_mode() (module option fb_mode_str) - * - as an integer that picks the video mode from carmine_modedb[] (module - * option fb_mode) - * - * If nothing is used than the initial video mode will be the - * CARMINEFB_DEFAULT_VIDEO_MODE member of the carmine_modedb[]. - */ -#define CARMINEFB_DEFAULT_VIDEO_MODE 1 - -static unsigned int fb_mode = CARMINEFB_DEFAULT_VIDEO_MODE; -module_param(fb_mode, uint, 0444); -MODULE_PARM_DESC(fb_mode, "Initial video mode as integer."); - -static char *fb_mode_str; -module_param(fb_mode_str, charp, 0444); -MODULE_PARM_DESC(fb_mode_str, "Initial video mode in characters."); - -/* - * Carminefb displays: - * 0b000 None - * 0b001 Display 0 - * 0b010 Display 1 - */ -static int fb_displays = CARMINE_USE_DISPLAY0 | CARMINE_USE_DISPLAY1; -module_param(fb_displays, int, 0444); -MODULE_PARM_DESC(fb_displays, "Bit mode, which displays are used"); - -struct carmine_hw { - void __iomem *v_regs; - void __iomem *screen_mem; - struct fb_info *fb[MAX_DISPLAY]; -}; - -struct carmine_resolution { - u32 htp; - u32 hsp; - u32 hsw; - u32 hdp; - u32 vtr; - u32 vsp; - u32 vsw; - u32 vdp; - u32 disp_mode; -}; - -struct carmine_fb { - void __iomem *display_reg; - void __iomem *screen_base; - u32 smem_offset; - u32 cur_mode; - u32 new_mode; - struct carmine_resolution *res; - u32 pseudo_palette[16]; -}; - -static struct fb_fix_screeninfo carminefb_fix = { - .id = "Carmine", - .type = FB_TYPE_PACKED_PIXELS, - .visual = FB_VISUAL_TRUECOLOR, - .accel = FB_ACCEL_NONE, -}; - -static const struct fb_videomode carmine_modedb[] = { - { - .name = "640x480", - .xres = 640, - .yres = 480, - }, { - .name = "800x600", - .xres = 800, - .yres = 600, - }, -}; - -static struct carmine_resolution car_modes[] = { - { - /* 640x480 */ - .htp = 800, - .hsp = 672, - .hsw = 96, - .hdp = 640, - .vtr = 525, - .vsp = 490, - .vsw = 2, - .vdp = 480, - .disp_mode = 0x1400, - }, - { - /* 800x600 */ - .htp = 1060, - .hsp = 864, - .hsw = 72, - .hdp = 800, - .vtr = 628, - .vsp = 601, - .vsw = 2, - .vdp = 600, - .disp_mode = 0x0d00, - } -}; - -static int carmine_find_mode(const struct fb_var_screeninfo *var) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(car_modes); i++) - if (car_modes[i].hdp == var->xres && - car_modes[i].vdp == var->yres) - return i; - return -EINVAL; -} - -static void c_set_disp_reg(const struct carmine_fb *par, - u32 offset, u32 val) -{ - writel(val, par->display_reg + offset); -} - -static u32 c_get_disp_reg(const struct carmine_fb *par, - u32 offset) -{ - return readl(par->display_reg + offset); -} - -static void c_set_hw_reg(const struct carmine_hw *hw, - u32 offset, u32 val) -{ - writel(val, hw->v_regs + offset); -} - -static u32 c_get_hw_reg(const struct carmine_hw *hw, - u32 offset) -{ - return readl(hw->v_regs + offset); -} - -static int carmine_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, struct fb_info *info) -{ - if (regno >= 16) - return 1; - - red >>= 8; - green >>= 8; - blue >>= 8; - transp >>= 8; - - ((__be32 *)info->pseudo_palette)[regno] = cpu_to_be32(transp << 24 | - red << 0 | green << 8 | blue << 16); - return 0; -} - -static int carmine_check_var(struct fb_var_screeninfo *var, - struct fb_info *info) -{ - int ret; - - ret = carmine_find_mode(var); - if (ret < 0) - return ret; - - if (var->grayscale || var->rotate || var->nonstd) - return -EINVAL; - - var->xres_virtual = var->xres; - var->yres_virtual = var->yres; - - var->bits_per_pixel = 32; - -#ifdef __BIG_ENDIAN - var->transp.offset = 24; - var->red.offset = 0; - var->green.offset = 8; - var->blue.offset = 16; -#else - var->transp.offset = 24; - var->red.offset = 16; - var->green.offset = 8; - var->blue.offset = 0; -#endif - - var->red.length = 8; - var->green.length = 8; - var->blue.length = 8; - var->transp.length = 8; - - var->red.msb_right = 0; - var->green.msb_right = 0; - var->blue.msb_right = 0; - var->transp.msb_right = 0; - return 0; -} - -static void carmine_init_display_param(struct carmine_fb *par) -{ - u32 width; - u32 height; - u32 param; - u32 window_size; - u32 soffset = par->smem_offset; - - c_set_disp_reg(par, CARMINE_DISP_REG_C_TRANS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_MLMR_TRANS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_CURSOR_MODE, - CARMINE_CURSOR0_PRIORITY_MASK | - CARMINE_CURSOR1_PRIORITY_MASK | - CARMINE_CURSOR_CUTZ_MASK); - - /* Set default cursor position */ - c_set_disp_reg(par, CARMINE_DISP_REG_CUR1_POS, 0 << 16 | 0); - c_set_disp_reg(par, CARMINE_DISP_REG_CUR2_POS, 0 << 16 | 0); - - /* Set default display mode */ - c_set_disp_reg(par, CARMINE_DISP_REG_L0_EXT_MODE, CARMINE_WINDOW_MODE | - CARMINE_EXT_CMODE_DIRECT24_RGBA); - c_set_disp_reg(par, CARMINE_DISP_REG_L1_EXT_MODE, - CARMINE_EXT_CMODE_DIRECT24_RGBA); - c_set_disp_reg(par, CARMINE_DISP_REG_L2_EXT_MODE, CARMINE_EXTEND_MODE | - CARMINE_EXT_CMODE_DIRECT24_RGBA); - c_set_disp_reg(par, CARMINE_DISP_REG_L3_EXT_MODE, CARMINE_EXTEND_MODE | - CARMINE_EXT_CMODE_DIRECT24_RGBA); - c_set_disp_reg(par, CARMINE_DISP_REG_L4_EXT_MODE, CARMINE_EXTEND_MODE | - CARMINE_EXT_CMODE_DIRECT24_RGBA); - c_set_disp_reg(par, CARMINE_DISP_REG_L5_EXT_MODE, CARMINE_EXTEND_MODE | - CARMINE_EXT_CMODE_DIRECT24_RGBA); - c_set_disp_reg(par, CARMINE_DISP_REG_L6_EXT_MODE, CARMINE_EXTEND_MODE | - CARMINE_EXT_CMODE_DIRECT24_RGBA); - c_set_disp_reg(par, CARMINE_DISP_REG_L7_EXT_MODE, CARMINE_EXTEND_MODE | - CARMINE_EXT_CMODE_DIRECT24_RGBA); - - /* Set default frame size to layer mode register */ - width = par->res->hdp * 4 / CARMINE_DISP_WIDTH_UNIT; - width = width << CARMINE_DISP_WIDTH_SHIFT; - - height = par->res->vdp - 1; - param = width | height; - - c_set_disp_reg(par, CARMINE_DISP_REG_L0_MODE_W_H, param); - c_set_disp_reg(par, CARMINE_DISP_REG_L1_WIDTH, width); - c_set_disp_reg(par, CARMINE_DISP_REG_L2_MODE_W_H, param); - c_set_disp_reg(par, CARMINE_DISP_REG_L3_MODE_W_H, param); - c_set_disp_reg(par, CARMINE_DISP_REG_L4_MODE_W_H, param); - c_set_disp_reg(par, CARMINE_DISP_REG_L5_MODE_W_H, param); - c_set_disp_reg(par, CARMINE_DISP_REG_L6_MODE_W_H, param); - c_set_disp_reg(par, CARMINE_DISP_REG_L7_MODE_W_H, param); - - /* Set default pos and size */ - window_size = (par->res->vdp - 1) << CARMINE_DISP_WIN_H_SHIFT; - window_size |= par->res->hdp; - - c_set_disp_reg(par, CARMINE_DISP_REG_L0_WIN_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L0_WIN_SIZE, window_size); - c_set_disp_reg(par, CARMINE_DISP_REG_L1_WIN_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L1_WIN_SIZE, window_size); - c_set_disp_reg(par, CARMINE_DISP_REG_L2_WIN_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L2_WIN_SIZE, window_size); - c_set_disp_reg(par, CARMINE_DISP_REG_L3_WIN_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L3_WIN_SIZE, window_size); - c_set_disp_reg(par, CARMINE_DISP_REG_L4_WIN_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L4_WIN_SIZE, window_size); - c_set_disp_reg(par, CARMINE_DISP_REG_L5_WIN_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L5_WIN_SIZE, window_size); - c_set_disp_reg(par, CARMINE_DISP_REG_L6_WIN_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L6_WIN_SIZE, window_size); - c_set_disp_reg(par, CARMINE_DISP_REG_L7_WIN_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L7_WIN_SIZE, window_size); - - /* Set default origin address */ - c_set_disp_reg(par, CARMINE_DISP_REG_L0_ORG_ADR, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L1_ORG_ADR, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L2_ORG_ADR1, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L3_ORG_ADR1, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L4_ORG_ADR1, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L5_ORG_ADR1, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L6_ORG_ADR1, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L7_ORG_ADR1, soffset); - - /* Set default display address */ - c_set_disp_reg(par, CARMINE_DISP_REG_L0_DISP_ADR, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L2_DISP_ADR1, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L3_DISP_ADR1, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L4_DISP_ADR1, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L5_DISP_ADR1, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L6_DISP_ADR0, soffset); - c_set_disp_reg(par, CARMINE_DISP_REG_L7_DISP_ADR0, soffset); - - /* Set default display position */ - c_set_disp_reg(par, CARMINE_DISP_REG_L0_DISP_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L2_DISP_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L3_DISP_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L4_DISP_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L5_DISP_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L6_DISP_POS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L7_DISP_POS, 0); - - /* Set default blend mode */ - c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L0, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L1, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L2, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L3, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L4, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L5, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L6, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L7, 0); - - /* default transparency mode */ - c_set_disp_reg(par, CARMINE_DISP_REG_L0_TRANS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L1_TRANS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L2_TRANS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L3_TRANS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L4_TRANS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L5_TRANS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L6_TRANS, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L7_TRANS, 0); - - /* Set default read skip parameter */ - c_set_disp_reg(par, CARMINE_DISP_REG_L0RM, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L2RM, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L3RM, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L4RM, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L5RM, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L6RM, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L7RM, 0); - - c_set_disp_reg(par, CARMINE_DISP_REG_L0PX, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L2PX, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L3PX, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L4PX, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L5PX, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L6PX, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L7PX, 0); - - c_set_disp_reg(par, CARMINE_DISP_REG_L0PY, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L2PY, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L3PY, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L4PY, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L5PY, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L6PY, 0); - c_set_disp_reg(par, CARMINE_DISP_REG_L7PY, 0); -} - -static void set_display_parameters(struct carmine_fb *par) -{ - u32 mode; - u32 hdp, vdp, htp, hsp, hsw, vtr, vsp, vsw; - - /* - * display timing. Parameters are decreased by one because hardware - * spec is 0 to (n - 1) - * */ - hdp = par->res->hdp - 1; - vdp = par->res->vdp - 1; - htp = par->res->htp - 1; - hsp = par->res->hsp - 1; - hsw = par->res->hsw - 1; - vtr = par->res->vtr - 1; - vsp = par->res->vsp - 1; - vsw = par->res->vsw - 1; - - c_set_disp_reg(par, CARMINE_DISP_REG_H_TOTAL, - htp << CARMINE_DISP_HTP_SHIFT); - c_set_disp_reg(par, CARMINE_DISP_REG_H_PERIOD, - (hdp << CARMINE_DISP_HDB_SHIFT) | hdp); - c_set_disp_reg(par, CARMINE_DISP_REG_V_H_W_H_POS, - (vsw << CARMINE_DISP_VSW_SHIFT) | - (hsw << CARMINE_DISP_HSW_SHIFT) | - (hsp)); - c_set_disp_reg(par, CARMINE_DISP_REG_V_TOTAL, - vtr << CARMINE_DISP_VTR_SHIFT); - c_set_disp_reg(par, CARMINE_DISP_REG_V_PERIOD_POS, - (vdp << CARMINE_DISP_VDP_SHIFT) | vsp); - - /* clock */ - mode = c_get_disp_reg(par, CARMINE_DISP_REG_DCM1); - mode = (mode & ~CARMINE_DISP_DCM_MASK) | - (par->res->disp_mode & CARMINE_DISP_DCM_MASK); - /* enable video output and layer 0 */ - mode |= CARMINE_DEN | CARMINE_L0E; - c_set_disp_reg(par, CARMINE_DISP_REG_DCM1, mode); -} - -static int carmine_set_par(struct fb_info *info) -{ - struct carmine_fb *par = info->par; - int ret; - - ret = carmine_find_mode(&info->var); - if (ret < 0) - return ret; - - par->new_mode = ret; - if (par->cur_mode != par->new_mode) { - - par->cur_mode = par->new_mode; - par->res = &car_modes[par->new_mode]; - - carmine_init_display_param(par); - set_display_parameters(par); - } - - info->fix.line_length = info->var.xres * info->var.bits_per_pixel / 8; - return 0; -} - -static int init_hardware(struct carmine_hw *hw) -{ - u32 flags; - u32 loops; - u32 ret; - - /* Initialize Carmine */ - /* Sets internal clock */ - c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE, - CARMINE_DFLT_IP_CLOCK_ENABLE); - - /* Video signal output is turned off */ - c_set_hw_reg(hw, CARMINE_DISP0_REG + CARMINE_DISP_REG_DCM1, 0); - c_set_hw_reg(hw, CARMINE_DISP1_REG + CARMINE_DISP_REG_DCM1, 0); - - /* Software reset */ - c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_SOFTWARE_RESET, 1); - c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_SOFTWARE_RESET, 0); - - /* I/O mode settings */ - flags = CARMINE_DFLT_IP_DCTL_IO_CONT1 << 16 | - CARMINE_DFLT_IP_DCTL_IO_CONT0; - c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_IOCONT1_IOCONT0, - flags); - - /* DRAM initial sequence */ - flags = CARMINE_DFLT_IP_DCTL_MODE << 16 | CARMINE_DFLT_IP_DCTL_ADD; - c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_MODE_ADD, - flags); - - flags = CARMINE_DFLT_IP_DCTL_SET_TIME1 << 16 | - CARMINE_DFLT_IP_DCTL_EMODE; - c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_SETTIME1_EMODE, - flags); - - flags = CARMINE_DFLT_IP_DCTL_REFRESH << 16 | - CARMINE_DFLT_IP_DCTL_SET_TIME2; - c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_REFRESH_SETTIME2, - flags); - - flags = CARMINE_DFLT_IP_DCTL_RESERVE2 << 16 | - CARMINE_DFLT_IP_DCTL_FIFO_DEPTH; - c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_RSV2_RSV1, flags); - - flags = CARMINE_DFLT_IP_DCTL_DDRIF2 << 16 | CARMINE_DFLT_IP_DCTL_DDRIF1; - c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_DDRIF2_DDRIF1, - flags); - - flags = CARMINE_DFLT_IP_DCTL_RESERVE0 << 16 | - CARMINE_DFLT_IP_DCTL_STATES; - c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_RSV0_STATES, - flags); - - /* Executes DLL reset */ - if (CARMINE_DCTL_DLL_RESET) { - for (loops = 0; loops < CARMINE_DCTL_INIT_WAIT_LIMIT; loops++) { - - ret = c_get_hw_reg(hw, CARMINE_DCTL_REG + - CARMINE_DCTL_REG_RSV0_STATES); - ret &= CARMINE_DCTL_REG_STATES_MASK; - if (!ret) - break; - - mdelay(CARMINE_DCTL_INIT_WAIT_INTERVAL); - } - - if (loops >= CARMINE_DCTL_INIT_WAIT_LIMIT) { - printk(KERN_ERR "DRAM init failed\n"); - return -EIO; - } - } - - flags = CARMINE_DFLT_IP_DCTL_MODE_AFT_RST << 16 | - CARMINE_DFLT_IP_DCTL_ADD; - c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_MODE_ADD, flags); - - flags = CARMINE_DFLT_IP_DCTL_RESERVE0 << 16 | - CARMINE_DFLT_IP_DCTL_STATES_AFT_RST; - c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_RSV0_STATES, - flags); - - /* Initialize the write back register */ - c_set_hw_reg(hw, CARMINE_WB_REG + CARMINE_WB_REG_WBM, - CARMINE_WB_REG_WBM_DEFAULT); - - /* Initialize the Kottos registers */ - c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_VRINTM, 0); - c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_VRERRM, 0); - - /* Set DC offsets */ - c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_PX, 0); - c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_PY, 0); - c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_LX, 0); - c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_LY, 0); - c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_TX, 0); - c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_TY, 0); - return 0; -} - -static struct fb_ops carminefb_ops = { - .owner = THIS_MODULE, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, - - .fb_check_var = carmine_check_var, - .fb_set_par = carmine_set_par, - .fb_setcolreg = carmine_setcolreg, -}; - -static int alloc_carmine_fb(void __iomem *regs, void __iomem *smem_base, - int smem_offset, struct device *device, - struct fb_info **rinfo) -{ - int ret; - struct fb_info *info; - struct carmine_fb *par; - - info = framebuffer_alloc(sizeof *par, device); - if (!info) - return -ENOMEM; - - par = info->par; - par->display_reg = regs; - par->smem_offset = smem_offset; - - info->screen_base = smem_base + smem_offset; - info->screen_size = CARMINE_DISPLAY_MEM; - info->fbops = &carminefb_ops; - - info->fix = carminefb_fix; - info->pseudo_palette = par->pseudo_palette; - info->flags = FBINFO_DEFAULT; - - ret = fb_alloc_cmap(&info->cmap, 256, 1); - if (ret < 0) - goto err_free_fb; - - if (fb_mode >= ARRAY_SIZE(carmine_modedb)) - fb_mode = CARMINEFB_DEFAULT_VIDEO_MODE; - - par->cur_mode = par->new_mode = ~0; - - ret = fb_find_mode(&info->var, info, fb_mode_str, carmine_modedb, - ARRAY_SIZE(carmine_modedb), - &carmine_modedb[fb_mode], 32); - if (!ret || ret == 4) { - ret = -EINVAL; - goto err_dealloc_cmap; - } - - fb_videomode_to_modelist(carmine_modedb, ARRAY_SIZE(carmine_modedb), - &info->modelist); - - ret = register_framebuffer(info); - if (ret < 0) - goto err_dealloc_cmap; - - fb_info(info, "%s frame buffer device\n", info->fix.id); - - *rinfo = info; - return 0; - -err_dealloc_cmap: - fb_dealloc_cmap(&info->cmap); -err_free_fb: - framebuffer_release(info); - return ret; -} - -static void cleanup_fb_device(struct fb_info *info) -{ - if (info) { - unregister_framebuffer(info); - fb_dealloc_cmap(&info->cmap); - framebuffer_release(info); - } -} - -static int carminefb_probe(struct pci_dev *dev, const struct pci_device_id *ent) -{ - struct carmine_hw *hw; - struct device *device = &dev->dev; - struct fb_info *info; - int ret; - - ret = pci_enable_device(dev); - if (ret) - return ret; - - ret = -ENOMEM; - hw = kzalloc(sizeof *hw, GFP_KERNEL); - if (!hw) - goto err_enable_pci; - - carminefb_fix.mmio_start = pci_resource_start(dev, CARMINE_CONFIG_BAR); - carminefb_fix.mmio_len = pci_resource_len(dev, CARMINE_CONFIG_BAR); - - if (!request_mem_region(carminefb_fix.mmio_start, - carminefb_fix.mmio_len, - "carminefb regbase")) { - printk(KERN_ERR "carminefb: Can't reserve regbase.\n"); - ret = -EBUSY; - goto err_free_hw; - } - hw->v_regs = ioremap_nocache(carminefb_fix.mmio_start, - carminefb_fix.mmio_len); - if (!hw->v_regs) { - printk(KERN_ERR "carminefb: Can't remap %s register.\n", - carminefb_fix.id); - goto err_free_reg_mmio; - } - - carminefb_fix.smem_start = pci_resource_start(dev, CARMINE_MEMORY_BAR); - carminefb_fix.smem_len = pci_resource_len(dev, CARMINE_MEMORY_BAR); - - /* The memory area tends to be very large (256 MiB). Remap only what - * is required for that largest resolution to avoid remaps at run - * time - */ - if (carminefb_fix.smem_len > CARMINE_TOTAL_DIPLAY_MEM) - carminefb_fix.smem_len = CARMINE_TOTAL_DIPLAY_MEM; - - else if (carminefb_fix.smem_len < CARMINE_TOTAL_DIPLAY_MEM) { - printk(KERN_ERR "carminefb: Memory bar is only %d bytes, %d " - "are required.", carminefb_fix.smem_len, - CARMINE_TOTAL_DIPLAY_MEM); - goto err_unmap_vregs; - } - - if (!request_mem_region(carminefb_fix.smem_start, - carminefb_fix.smem_len, "carminefb smem")) { - printk(KERN_ERR "carminefb: Can't reserve smem.\n"); - goto err_unmap_vregs; - } - - hw->screen_mem = ioremap_nocache(carminefb_fix.smem_start, - carminefb_fix.smem_len); - if (!hw->screen_mem) { - printk(KERN_ERR "carmine: Can't ioremap smem area.\n"); - goto err_reg_smem; - } - - ret = init_hardware(hw); - if (ret) - goto err_unmap_screen; - - info = NULL; - if (fb_displays & CARMINE_USE_DISPLAY0) { - ret = alloc_carmine_fb(hw->v_regs + CARMINE_DISP0_REG, - hw->screen_mem, CARMINE_DISPLAY_MEM * 0, - device, &info); - if (ret) - goto err_deinit_hw; - } - - hw->fb[0] = info; - - info = NULL; - if (fb_displays & CARMINE_USE_DISPLAY1) { - ret = alloc_carmine_fb(hw->v_regs + CARMINE_DISP1_REG, - hw->screen_mem, CARMINE_DISPLAY_MEM * 1, - device, &info); - if (ret) - goto err_cleanup_fb0; - } - - hw->fb[1] = info; - info = NULL; - - pci_set_drvdata(dev, hw); - return 0; - -err_cleanup_fb0: - cleanup_fb_device(hw->fb[0]); -err_deinit_hw: - /* disable clock, etc */ - c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE, 0); -err_unmap_screen: - iounmap(hw->screen_mem); -err_reg_smem: - release_mem_region(carminefb_fix.smem_start, carminefb_fix.smem_len); -err_unmap_vregs: - iounmap(hw->v_regs); -err_free_reg_mmio: - release_mem_region(carminefb_fix.mmio_start, carminefb_fix.mmio_len); -err_free_hw: - kfree(hw); -err_enable_pci: - pci_disable_device(dev); - return ret; -} - -static void carminefb_remove(struct pci_dev *dev) -{ - struct carmine_hw *hw = pci_get_drvdata(dev); - struct fb_fix_screeninfo fix; - int i; - - /* in case we use only fb1 and not fb1 */ - if (hw->fb[0]) - fix = hw->fb[0]->fix; - else - fix = hw->fb[1]->fix; - - /* deactivate display(s) and switch clocks */ - c_set_hw_reg(hw, CARMINE_DISP0_REG + CARMINE_DISP_REG_DCM1, 0); - c_set_hw_reg(hw, CARMINE_DISP1_REG + CARMINE_DISP_REG_DCM1, 0); - c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE, 0); - - for (i = 0; i < MAX_DISPLAY; i++) - cleanup_fb_device(hw->fb[i]); - - iounmap(hw->screen_mem); - release_mem_region(fix.smem_start, fix.smem_len); - iounmap(hw->v_regs); - release_mem_region(fix.mmio_start, fix.mmio_len); - - pci_disable_device(dev); - kfree(hw); -} - -#define PCI_VENDOR_ID_FUJITU_LIMITED 0x10cf -static struct pci_device_id carmine_devices[] = { -{ - PCI_DEVICE(PCI_VENDOR_ID_FUJITU_LIMITED, 0x202b)}, - {0, 0, 0, 0, 0, 0, 0} -}; - -MODULE_DEVICE_TABLE(pci, carmine_devices); - -static struct pci_driver carmine_pci_driver = { - .name = "carminefb", - .id_table = carmine_devices, - .probe = carminefb_probe, - .remove = carminefb_remove, -}; - -static int __init carminefb_init(void) -{ - if (!(fb_displays & - (CARMINE_USE_DISPLAY0 | CARMINE_USE_DISPLAY1))) { - printk(KERN_ERR "If you disable both displays than you don't " - "need the driver at all\n"); - return -EINVAL; - } - return pci_register_driver(&carmine_pci_driver); -} -module_init(carminefb_init); - -static void __exit carminefb_cleanup(void) -{ - pci_unregister_driver(&carmine_pci_driver); -} -module_exit(carminefb_cleanup); - -MODULE_AUTHOR("Sebastian Siewior <bigeasy@linutronix.de>"); -MODULE_DESCRIPTION("Framebuffer driver for Fujitsu Carmine based devices"); -MODULE_LICENSE("GPL v2"); |