linux/drivers/video/fbdev/carminefb.c
Linus Torvalds 9f68e3655a drm pull for 5.6-rc1
uapi:
 - dma-buf heaps added (and fixed)
 - command line add support for panel oreientation
 - command line allow overriding penguin count
 
 drm:
 - mipi dsi definition updates
 - lockdep annotations for dma_resv
 - remove dma-buf kmap/kunmap support
 - constify fb_ops in all fbdev drivers
 - MST fix for daisy chained hotplug-
 - CTA-861-G modes with VIC >= 193 added
 - fix drm_panel_of_backlight export
 - LVDS decoder support
 - more device based logging support
 - scanline alighment for dumb buffers
 - MST DSC helpers
 
 scheduler:
 - documentation fixes
 - job distribution improvements
 
 panel:
 - Logic PD type 28 panel support
 - Jimax8729d MIPI-DSI
 - igenic JZ4770
 - generic DSI devicetree bindings
 - sony acx424AKP panel
 - Leadtek LTK500HD1829
 - xinpeng XPP055C272
 - AUO B116XAK01
 - GiantPlus GPM940B0
 - BOE NV140FHM-N49
 - Satoz SAT050AT40H12R2
 - Sharp LS020B1DD01D panels.
 
 ttm:
 - use blocking WW lock
 
 i915:
 - hw/uapi state separation
 - Lock annotation improvements
 - selftest improvements
 - ICL/TGL DSI VDSC support
 - VBT parsing improvments
 - Display refactoring
 - DSI updates + fixes
 - HDCP 2.2 for CFL
 - CML PCI ID fixes
 - GLK+ fbc fix
 - PSR fixes
 - GEN/GT refactor improvments
 - DP MST fixes
 - switch context id alloc to xarray
 - workaround updates
 - LMEM debugfs support
 - tiled monitor fixes
 - ICL+ clock gating programming removed
 - DP MST disable sequence fixed
 - LMEM discontiguous object maps
 - prefaulting for discontiguous objects
 - use LMEM for dumb buffers if possible
 - add LMEM mmap support
 
 amdgpu:
 - enable sync object timelines for vulkan
 - MST atomic routines
 - enable MST DSC support
 - add DMCUB display microengine support
 - DC OEM i2c support
 - Renoir DC fixes
 - Initial HDCP 2.x support
 - BACO support for Arcturus
 - Use BACO for runtime PM power save
 - gfxoff on navi10
 - gfx10 golden updates and fixes
 - DCN support on POWER
 - GFXOFF for raven1 refresh
 - MM engine idle handlers cleanup
 - 10bpc EDP panel fixes
 - renoir watermark fixes
 - SR-IOV fixes
 - Arcturus VCN fixes
 - GDDR6 training fixes
 - freesync fixes
 - Pollock support
 
 amdkfd:
 - unify more codepath with amdgpu
 - use KIQ to setup HIQ rather than MMIO
 
 radeon:
 - fix vma fault handler race
 - PPC DMA fix
 - register check fixes for r100/r200
 
 nouveau:
 - mmap_sem vs dma_resv fix
 - rewrite the ACR secure boot code for Turing
 - TU10x graphics engine support (TU11x pending)
 - Page kind mapping for turing
 - 10-bit LUT support
 - GP10B Tegra fixes
 - HD audio regression fix
 
 hisilicon/hibmc:
 - use generic fbdev code and helpers
 
 rockchip:
 - dsi/px30 support
 
 virtio:
 - fb damage support
 - static some functions
 
 vc4:
 - use dma_resv lock wrappers
 
 msm:
 - use dma_resv lock wrappers
 - sc7180 display + DSI support
 - a618 support
 - UBWC support improvements
 
 vmwgfx:
 - updates + new logging uapi
 
 exynos:
 - enable/disable callback cleanups
 
 etnaviv:
 - use dma_resv lock wrappers
 
 atmel-hlcdc:
 - clock fixes
 
 mediatek:
 - cmdq support
 - non-smooth cursor fixes
 - ctm property support
 
 sun4i:
 - suspend support
 - A64 mipi dsi support
 
 rcar-du:
 - Color management module support
 - LVDS encoder dual-link support
 - R8A77980 support
 
 analogic:
 - add support for an6345
 
 ast:
 - atomic modeset support
 - primary plane garbage fix
 
 arcgpu:
 - fixes for fourcc handling
 
 tegra:
 - minor fixes and improvments
 
 mcde:
 - vblank support
 
 meson:
 - OSD1 plane AFBC commit
 
 gma500:
 - add pageflip support
 - reomve global drm_dev
 
 komeda:
 - tweak debugfs output
 - d32 support
 - runtime PM suppotr
 
 udl:
 - use generic shmem helpers
 - cleanup and fixes
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Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Davbe Airlie:
 "This is the main pull request for graphics for 5.6. Usual selection of
  changes all over.

  I've got one outstanding vmwgfx pull that touches mm so kept it
  separate until after all of this lands. I'll try and get it to you
  soon after this, but it might be early next week (nothing wrong with
  code, just my schedule is messy)

  This also hits a lot of fbdev drivers with some cleanups.

  Other notables:
   - vulkan timeline semaphore support added to syncobjs
   - nouveau turing secureboot/graphics support
   - Displayport MST display stream compression support

  Detailed summary:

  uapi:
   - dma-buf heaps added (and fixed)
   - command line add support for panel oreientation
   - command line allow overriding penguin count

  drm:
   - mipi dsi definition updates
   - lockdep annotations for dma_resv
   - remove dma-buf kmap/kunmap support
   - constify fb_ops in all fbdev drivers
   - MST fix for daisy chained hotplug-
   - CTA-861-G modes with VIC >= 193 added
   - fix drm_panel_of_backlight export
   - LVDS decoder support
   - more device based logging support
   - scanline alighment for dumb buffers
   - MST DSC helpers

  scheduler:
   - documentation fixes
   - job distribution improvements

  panel:
   - Logic PD type 28 panel support
   - Jimax8729d MIPI-DSI
   - igenic JZ4770
   - generic DSI devicetree bindings
   - sony acx424AKP panel
   - Leadtek LTK500HD1829
   - xinpeng XPP055C272
   - AUO B116XAK01
   - GiantPlus GPM940B0
   - BOE NV140FHM-N49
   - Satoz SAT050AT40H12R2
   - Sharp LS020B1DD01D panels.

  ttm:
   - use blocking WW lock

  i915:
   - hw/uapi state separation
   - Lock annotation improvements
   - selftest improvements
   - ICL/TGL DSI VDSC support
   - VBT parsing improvments
   - Display refactoring
   - DSI updates + fixes
   - HDCP 2.2 for CFL
   - CML PCI ID fixes
   - GLK+ fbc fix
   - PSR fixes
   - GEN/GT refactor improvments
   - DP MST fixes
   - switch context id alloc to xarray
   - workaround updates
   - LMEM debugfs support
   - tiled monitor fixes
   - ICL+ clock gating programming removed
   - DP MST disable sequence fixed
   - LMEM discontiguous object maps
   - prefaulting for discontiguous objects
   - use LMEM for dumb buffers if possible
   - add LMEM mmap support

  amdgpu:
   - enable sync object timelines for vulkan
   - MST atomic routines
   - enable MST DSC support
   - add DMCUB display microengine support
   - DC OEM i2c support
   - Renoir DC fixes
   - Initial HDCP 2.x support
   - BACO support for Arcturus
   - Use BACO for runtime PM power save
   - gfxoff on navi10
   - gfx10 golden updates and fixes
   - DCN support on POWER
   - GFXOFF for raven1 refresh
   - MM engine idle handlers cleanup
   - 10bpc EDP panel fixes
   - renoir watermark fixes
   - SR-IOV fixes
   - Arcturus VCN fixes
   - GDDR6 training fixes
   - freesync fixes
   - Pollock support

  amdkfd:
   - unify more codepath with amdgpu
   - use KIQ to setup HIQ rather than MMIO

  radeon:
   - fix vma fault handler race
   - PPC DMA fix
   - register check fixes for r100/r200

  nouveau:
   - mmap_sem vs dma_resv fix
   - rewrite the ACR secure boot code for Turing
   - TU10x graphics engine support (TU11x pending)
   - Page kind mapping for turing
   - 10-bit LUT support
   - GP10B Tegra fixes
   - HD audio regression fix

  hisilicon/hibmc:
   - use generic fbdev code and helpers

  rockchip:
   - dsi/px30 support

  virtio:
   - fb damage support
   - static some functions

  vc4:
   - use dma_resv lock wrappers

  msm:
   - use dma_resv lock wrappers
   - sc7180 display + DSI support
   - a618 support
   - UBWC support improvements

  vmwgfx:
   - updates + new logging uapi

  exynos:
   - enable/disable callback cleanups

  etnaviv:
   - use dma_resv lock wrappers

  atmel-hlcdc:
   - clock fixes

  mediatek:
   - cmdq support
   - non-smooth cursor fixes
   - ctm property support

  sun4i:
   - suspend support
   - A64 mipi dsi support

  rcar-du:
   - Color management module support
   - LVDS encoder dual-link support
   - R8A77980 support

  analogic:
   - add support for an6345

  ast:
   - atomic modeset support
   - primary plane garbage fix

  arcgpu:
   - fixes for fourcc handling

  tegra:
   - minor fixes and improvments

  mcde:
   - vblank support

  meson:
   - OSD1 plane AFBC commit

  gma500:
   - add pageflip support
   - reomve global drm_dev

  komeda:
   - tweak debugfs output
   - d32 support
   - runtime PM suppotr

  udl:
   - use generic shmem helpers
   - cleanup and fixes"

* tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm: (1998 commits)
  drm/nouveau/fb/gp102-: allow module to load even when scrubber binary is missing
  drm/nouveau/acr: return error when registering LSF if ACR not supported
  drm/nouveau/disp/gv100-: not all channel types support reporting error codes
  drm/nouveau/disp/nv50-: prevent oops when no channel method map provided
  drm/nouveau: support synchronous pushbuf submission
  drm/nouveau: signal pending fences when channel has been killed
  drm/nouveau: reject attempts to submit to dead channels
  drm/nouveau: zero vma pointer even if we only unreference it rather than free
  drm/nouveau: Add HD-audio component notifier support
  drm/nouveau: fix build error without CONFIG_IOMMU_API
  drm/nouveau/kms/nv04: remove set but not used variable 'width'
  drm/nouveau/kms/nv50: remove set but not unused variable 'nv_connector'
  drm/nouveau/mmu: fix comptag memory leak
  drm/nouveau/gr/gp10b: Use gp100_grctx and gp100_gr_zbc
  drm/nouveau/pmu/gm20b,gp10b: Fix Falcon bootstrapping
  drm/exynos: Rename Exynos to lowercase
  drm/exynos: change callback names
  drm/mst: Don't do atomic checks over disabled managers
  drm/amdgpu: add the lost mutex_init back
  drm/amd/display: skip opp blank or unblank if test pattern enabled
  ...
2020-01-30 08:04:01 -08:00

790 lines
22 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* 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 const 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(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(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");