- 根目录:
- drivers
- video
- intelfb
- intelfbhw.h
#ifndef _INTELFBHW_H
#define _INTELFBHW_H
/* $DHD: intelfb/intelfbhw.h,v 1.5 2003/06/27 15:06:25 dawes Exp $ */
/*** HW-specific data ***/
/* Information about the 852GM/855GM variants */
#define INTEL_85X_CAPID 0x44
#define INTEL_85X_VARIANT_MASK 0x7
#define INTEL_85X_VARIANT_SHIFT 5
#define INTEL_VAR_855GME 0x0
#define INTEL_VAR_855GM 0x4
#define INTEL_VAR_852GME 0x2
#define INTEL_VAR_852GM 0x5
/* Information about DVO/LVDS Ports */
#define DVOA_PORT 0x1
#define DVOB_PORT 0x2
#define DVOC_PORT 0x4
#define LVDS_PORT 0x8
/*
* The Bridge device's PCI config space has information about the
* fb aperture size and the amount of pre-reserved memory.
*/
#define INTEL_GMCH_CTRL 0x52
#define INTEL_GMCH_ENABLED 0x4
#define INTEL_GMCH_MEM_MASK 0x1
#define INTEL_GMCH_MEM_64M 0x1
#define INTEL_GMCH_MEM_128M 0
#define INTEL_830_GMCH_GMS_MASK (0x7 << 4)
#define INTEL_830_GMCH_GMS_DISABLED (0x0 << 4)
#define INTEL_830_GMCH_GMS_LOCAL (0x1 << 4)
#define INTEL_830_GMCH_GMS_STOLEN_512 (0x2 << 4)
#define INTEL_830_GMCH_GMS_STOLEN_1024 (0x3 << 4)
#define INTEL_830_GMCH_GMS_STOLEN_8192 (0x4 << 4)
#define INTEL_855_GMCH_GMS_MASK (0x7 << 4)
#define INTEL_855_GMCH_GMS_DISABLED (0x0 << 4)
#define INTEL_855_GMCH_GMS_STOLEN_1M (0x1 << 4)
#define INTEL_855_GMCH_GMS_STOLEN_4M (0x2 << 4)
#define INTEL_855_GMCH_GMS_STOLEN_8M (0x3 << 4)
#define INTEL_855_GMCH_GMS_STOLEN_16M (0x4 << 4)
#define INTEL_855_GMCH_GMS_STOLEN_32M (0x5 << 4)
#define INTEL_915G_GMCH_GMS_STOLEN_48M (0x6 << 4)
#define INTEL_915G_GMCH_GMS_STOLEN_64M (0x7 << 4)
/* HW registers */
/* Fence registers */
#define FENCE 0x2000
#define FENCE_NUM 8
/* Primary ring buffer */
#define PRI_RING_TAIL 0x2030
#define RING_TAIL_MASK 0x001ffff8
#define RING_INUSE 0x1
#define PRI_RING_HEAD 0x2034
#define RING_HEAD_WRAP_MASK 0x7ff
#define RING_HEAD_WRAP_SHIFT 21
#define RING_HEAD_MASK 0x001ffffc
#define PRI_RING_START 0x2038
#define RING_START_MASK 0xfffff000
#define PRI_RING_LENGTH 0x203c
#define RING_LENGTH_MASK 0x001ff000
#define RING_REPORT_MASK (0x3 << 1)
#define RING_NO_REPORT (0x0 << 1)
#define RING_REPORT_64K (0x1 << 1)
#define RING_REPORT_4K (0x2 << 1)
#define RING_REPORT_128K (0x3 << 1)
#define RING_ENABLE 0x1
/*
* Tail can't wrap to any closer than RING_MIN_FREE bytes of the head,
* and the last RING_MIN_FREE bytes need to be padded with MI_NOOP
*/
#define RING_MIN_FREE 64
#define IPEHR 0x2088
#define INSTDONE 0x2090
#define PRI_RING_EMPTY 1
#define HWSTAM 0x2098
#define IER 0x20A0
#define IIR 0x20A4
#define IMR 0x20A8
#define VSYNC_PIPE_A_INTERRUPT (1 << 7)
#define PIPE_A_EVENT_INTERRUPT (1 << 6)
#define VSYNC_PIPE_B_INTERRUPT (1 << 5)
#define PIPE_B_EVENT_INTERRUPT (1 << 4)
#define HOST_PORT_EVENT_INTERRUPT (1 << 3)
#define CAPTURE_EVENT_INTERRUPT (1 << 2)
#define USER_DEFINED_INTERRUPT (1 << 1)
#define BREAKPOINT_INTERRUPT 1
#define INSTPM 0x20c0
#define SYNC_FLUSH_ENABLE (1 << 5)
#define INSTPS 0x20c4
#define MEM_MODE 0x20cc
#define MASK_SHIFT 16
#define FW_BLC_0 0x20d8
#define FW_DISPA_WM_SHIFT 0
#define FW_DISPA_WM_MASK 0x3f
#define FW_DISPA_BL_SHIFT 8
#define FW_DISPA_BL_MASK 0xf
#define FW_DISPB_WM_SHIFT 16
#define FW_DISPB_WM_MASK 0x1f
#define FW_DISPB_BL_SHIFT 24
#define FW_DISPB_BL_MASK 0x7
#define FW_BLC_1 0x20dc
#define FW_DISPC_WM_SHIFT 0
#define FW_DISPC_WM_MASK 0x1f
#define FW_DISPC_BL_SHIFT 8
#define FW_DISPC_BL_MASK 0x7
#define GPIOA 0x5010
#define GPIOB 0x5014
#define GPIOC 0x5018 /* this may be external DDC on i830 */
#define GPIOD 0x501C /* this is DVO DDC */
#define GPIOE 0x5020 /* this is DVO i2C */
#define GPIOF 0x5024
/* PLL registers */
#define VGA0_DIVISOR 0x06000
#define VGA1_DIVISOR 0x06004
#define VGAPD 0x06010
#define VGAPD_0_P1_SHIFT 0
#define VGAPD_0_P1_FORCE_DIV2 (1 << 5)
#define VGAPD_0_P2_SHIFT 7
#define VGAPD_1_P1_SHIFT 8
#define VGAPD_1_P1_FORCE_DIV2 (1 << 13)
#define VGAPD_1_P2_SHIFT 15
#define DPLL_A 0x06014
#define DPLL_B 0x06018
#define DPLL_VCO_ENABLE (1 << 31)
#define DPLL_2X_CLOCK_ENABLE (1 << 30)
#define DPLL_SYNCLOCK_ENABLE (1 << 29)
#define DPLL_VGA_MODE_DISABLE (1 << 28)
#define DPLL_P2_MASK 1
#define DPLL_P2_SHIFT 23
#define DPLL_I9XX_P2_SHIFT 24
#define DPLL_P1_FORCE_DIV2 (1 << 21)
#define DPLL_P1_MASK 0x1f
#define DPLL_P1_SHIFT 16
#define DPLL_REFERENCE_SELECT_MASK (0x3 << 13)
#define DPLL_REFERENCE_DEFAULT (0x0 << 13)
#define DPLL_REFERENCE_TVCLK (0x2 << 13)
#define DPLL_RATE_SELECT_MASK (1 << 8)
#define DPLL_RATE_SELECT_FP0 (0 << 8)
#define DPLL_RATE_SELECT_FP1 (1 << 8)
#define FPA0 0x06040
#define FPA1 0x06044
#define FPB0 0x06048
#define FPB1 0x0604c
#define FP_DIVISOR_MASK 0x3f
#define FP_N_DIVISOR_SHIFT 16
#define FP_M1_DIVISOR_SHIFT 8
#define FP_M2_DIVISOR_SHIFT 0
/* PLL parameters (these are for 852GM/855GM/865G, check earlier chips). */
/* Clock values are in units of kHz */
#define PLL_REFCLK 48000
#define MIN_CLOCK 25000
#define MAX_CLOCK 350000
/* Two pipes */
#define PIPE_A 0
#define PIPE_B 1
#define PIPE_MASK 1
/* palette registers */
#define PALETTE_A 0x0a000
#define PALETTE_B 0x0a800
#ifndef PALETTE_8_ENTRIES
#define PALETTE_8_ENTRIES 256
#endif
#define PALETTE_8_SIZE (PALETTE_8_ENTRIES * 4)
#define PALETTE_10_ENTRIES 128
#define PALETTE_10_SIZE (PALETTE_10_ENTRIES * 8)
#define PALETTE_8_MASK 0xff
#define PALETTE_8_RED_SHIFT 16
#define PALETTE_8_GREEN_SHIFT 8
#define PALETTE_8_BLUE_SHIFT 0
/* CRTC registers */
#define HTOTAL_A 0x60000
#define HBLANK_A 0x60004
#define HSYNC_A 0x60008
#define VTOTAL_A 0x6000c
#define VBLANK_A 0x60010
#define VSYNC_A 0x60014
#define SRC_SIZE_A 0x6001c
#define BCLRPAT_A 0x60020
#define HTOTAL_B 0x61000
#define HBLANK_B 0x61004
#define HSYNC_B 0x61008
#define VTOTAL_B 0x6100c
#define VBLANK_B 0x61010
#define VSYNC_B 0x61014
#define SRC_SIZE_B 0x6101c
#define BCLRPAT_B 0x61020
#define HTOTAL_MASK 0xfff
#define HTOTAL_SHIFT 16
#define HACTIVE_MASK 0x7ff
#define HACTIVE_SHIFT 0
#define HBLANKEND_MASK 0xfff
#define HBLANKEND_SHIFT 16
#define HBLANKSTART_MASK 0xfff
#define HBLANKSTART_SHIFT 0
#define HSYNCEND_MASK 0xfff
#define HSYNCEND_SHIFT 16
#define HSYNCSTART_MASK 0xfff
#define HSYNCSTART_SHIFT 0
#define VTOTAL_MASK 0xfff
#define VTOTAL_SHIFT 16
#define VACTIVE_MASK 0x7ff
#define VACTIVE_SHIFT 0
#define VBLANKEND_MASK 0xfff
#define VBLANKEND_SHIFT 16
#define VBLANKSTART_MASK 0xfff
#define VBLANKSTART_SHIFT 0
#define VSYNCEND_MASK 0xfff
#define VSYNCEND_SHIFT 16
#define VSYNCSTART_MASK 0xfff
#define VSYNCSTART_SHIFT 0
#define SRC_SIZE_HORIZ_MASK 0x7ff
#define SRC_SIZE_HORIZ_SHIFT 16
#define SRC_SIZE_VERT_MASK 0x7ff
#define SRC_SIZE_VERT_SHIFT 0
#define ADPA 0x61100
#define ADPA_DAC_ENABLE (1 << 31)
#define ADPA_DAC_DISABLE 0
#define ADPA_PIPE_SELECT_SHIFT 30
#define ADPA_USE_VGA_HVPOLARITY (1 << 15)
#define ADPA_SETS_HVPOLARITY 0
#define ADPA_DPMS_CONTROL_MASK (0x3 << 10)
#define ADPA_DPMS_D0 (0x0 << 10)
#define ADPA_DPMS_D2 (0x1 << 10)
#define ADPA_DPMS_D1 (0x2 << 10)
#define ADPA_DPMS_D3 (0x3 << 10)
#define ADPA_VSYNC_ACTIVE_SHIFT 4
#define ADPA_HSYNC_ACTIVE_SHIFT 3
#define ADPA_SYNC_ACTIVE_MASK 1
#define ADPA_SYNC_ACTIVE_HIGH 1
#define ADPA_SYNC_ACTIVE_LOW 0
#define DVOA 0x61120
#define DVOB 0x61140
#define DVOC 0x61160
#define LVDS 0x61180
#define PORT_ENABLE (1 << 31)
#define PORT_PIPE_SELECT_SHIFT 30
#define PORT_TV_FLAGS_MASK 0xFF
#define PORT_TV_FLAGS 0xC4 /* ripped from my BIOS
to understand and correct */
#define DVOA_SRCDIM 0x61124
#define DVOB_SRCDIM 0x61144
#define DVOC_SRCDIM 0x61164
#define PIPEA_DSL 0x70000
#define PIPEB_DSL 0x71000
#define PIPEACONF 0x70008
#define PIPEBCONF 0x71008
#define PIPEASTAT 0x70024 /* bits 0-15 are "write 1 to clear" */
#define PIPEBSTAT 0x71024
#define PIPECONF_ENABLE (1 << 31)
#define PIPECONF_DISABLE 0
#define PIPECONF_DOUBLE_WIDE (1 << 30)
#define PIPECONF_SINGLE_WIDE 0
#define PIPECONF_LOCKED (1 << 25)
#define PIPECONF_UNLOCKED 0
#define PIPECONF_GAMMA (1 << 24)
#define PIPECONF_PALETTE 0
#define PIPECONF_PROGRESSIVE (0 << 21)
#define PIPECONF_INTERLACE_W_FIELD_INDICATION (6 << 21)
#define PIPECONF_INTERLACE_FIELD_0_ONLY (7 << 21)
#define PIPECONF_INTERLACE_MASK (7 << 21)
/* enable bits, write 1 to enable */
#define PIPESTAT_FIFO_UNDERRUN (1 << 31)
#define PIPESTAT_CRC_ERROR_EN (1 << 29)
#define PIPESTAT_CRC_DONE_EN (1 << 28)
#define PIPESTAT_HOTPLUG_EN (1 << 26)
#define PIPESTAT_VERTICAL_SYNC_EN (1 << 25)
#define PIPESTAT_DISPLINE_COMP_EN (1 << 24)
#define PIPESTAT_FLD_EVT_ODD_EN (1 << 21)
#define PIPESTAT_FLD_EVT_EVEN_EN (1 << 20)
#define PIPESTAT_TV_HOTPLUG_EN (1 << 18)
#define PIPESTAT_VBLANK_EN (1 << 17)
#define PIPESTAT_OVL_UPDATE_EN (1 << 16)
/* status bits, write 1 to clear */
#define PIPESTAT_HOTPLUG_STATE (1 << 15)
#define PIPESTAT_CRC_ERROR (1 << 13)
#define PIPESTAT_CRC_DONE (1 << 12)
#define PIPESTAT_HOTPLUG (1 << 10)
#define PIPESTAT_VSYNC (1 << 9)
#define PIPESTAT_DISPLINE_COMP (1 << 8)
#define PIPESTAT_FLD_EVT_ODD (1 << 5)
#define PIPESTAT_FLD_EVT_EVEN (1 << 4)
#define PIPESTAT_TV_HOTPLUG (1 << 2)
#define PIPESTAT_VBLANK (1 << 1)
#define PIPESTAT_OVL_UPDATE (1 << 0)
#define DISPARB 0x70030
#define DISPARB_AEND_MASK 0x1ff
#define DISPARB_AEND_SHIFT 0
#define DISPARB_BEND_MASK 0x3ff
#define DISPARB_BEND_SHIFT 9
/* Desktop HW cursor */
#define CURSOR_CONTROL 0x70080
#define CURSOR_ENABLE (1 << 31)
#define CURSOR_GAMMA_ENABLE (1 << 30)
#define CURSOR_STRIDE_MASK (0x3 << 28)
#define CURSOR_STRIDE_256 (0x0 << 28)
#define CURSOR_STRIDE_512 (0x1 << 28)
#define CURSOR_STRIDE_1K (0x2 << 28)
#define CURSOR_STRIDE_2K (0x3 << 28)
#define CURSOR_FORMAT_MASK (0x7 << 24)
#define CURSOR_FORMAT_2C (0x0 << 24)
#define CURSOR_FORMAT_3C (0x1 << 24)
#define CURSOR_FORMAT_4C (0x2 << 24)
#define CURSOR_FORMAT_ARGB (0x4 << 24)
#define CURSOR_FORMAT_XRGB (0x5 << 24)
/* Mobile HW cursor (and i810) */
#define CURSOR_A_CONTROL CURSOR_CONTROL
#define CURSOR_B_CONTROL 0x700c0
#define CURSOR_MODE_MASK 0x27
#define CURSOR_MODE_DISABLE 0
#define CURSOR_MODE_64_3C 0x04
#define CURSOR_MODE_64_4C_AX 0x05
#define CURSOR_MODE_64_4C 0x06
#define CURSOR_MODE_64_32B_AX 0x07
#define CURSOR_MODE_64_ARGB_AX 0x27
#define CURSOR_PIPE_SELECT_SHIFT 28
#define CURSOR_MOBILE_GAMMA_ENABLE (1 << 26)
#define CURSOR_MEM_TYPE_LOCAL (1 << 25)
/* All platforms (desktop has no pipe B) */
#define CURSOR_A_BASEADDR 0x70084
#define CURSOR_B_BASEADDR 0x700c4
#define CURSOR_BASE_MASK 0xffffff00
#define CURSOR_A_POSITION 0x70088
#define CURSOR_B_POSITION 0x700c8
#define CURSOR_POS_SIGN (1 << 15)
#define CURSOR_POS_MASK 0x7ff
#define CURSOR_X_SHIFT 0
#define CURSOR_Y_SHIFT 16
#define CURSOR_A_PALETTE0 0x70090
#define CURSOR_A_PALETTE1 0x70094
#define CURSOR_A_PALETTE2 0x70098
#define CURSOR_A_PALETTE3 0x7009c
#define CURSOR_B_PALETTE0 0x700d0
#define CURSOR_B_PALETTE1 0x700d4
#define CURSOR_B_PALETTE2 0x700d8
#define CURSOR_B_PALETTE3 0x700dc
#define CURSOR_COLOR_MASK 0xff
#define CURSOR_RED_SHIFT 16
#define CURSOR_GREEN_SHIFT 8
#define CURSOR_BLUE_SHIFT 0
#define CURSOR_PALETTE_MASK 0xffffff
/* Desktop only */
#define CURSOR_SIZE 0x700a0
#define CURSOR_SIZE_MASK 0x3ff
#define CURSOR_SIZE_H_SHIFT 0
#define CURSOR_SIZE_V_SHIFT 12
#define DSPACNTR 0x70180
#define DSPBCNTR 0x71180
#define DISPPLANE_PLANE_ENABLE (1 << 31)
#define DISPPLANE_PLANE_DISABLE 0
#define DISPPLANE_GAMMA_ENABLE (1<<30)
#define DISPPLANE_GAMMA_DISABLE 0
#define DISPPLANE_PIXFORMAT_MASK (0xf<<26)
#define DISPPLANE_8BPP (0x2<<26)
#define DISPPLANE_15_16BPP (0x4<<26)
#define DISPPLANE_16BPP (0x5<<26)
#define DISPPLANE_32BPP_NO_ALPHA (0x6<<26)
#define DISPPLANE_32BPP (0x7<<26)
#define DISPPLANE_STEREO_ENABLE (1<<25)
#define DISPPLANE_STEREO_DISABLE 0
#define DISPPLANE_SEL_PIPE_SHIFT 24
#define DISPPLANE_SRC_KEY_ENABLE (1<<22)
#define DISPPLANE_SRC_KEY_DISABLE 0
#define DISPPLANE_LINE_DOUBLE (1<<20)
#define DISPPLANE_NO_LINE_DOUBLE 0
#define DISPPLANE_STEREO_POLARITY_FIRST 0
#define DISPPLANE_STEREO_POLARITY_SECOND (1<<18)
/* plane B only */
#define DISPPLANE_ALPHA_TRANS_ENABLE (1<<15)
#define DISPPLANE_ALPHA_TRANS_DISABLE 0
#define DISPPLANE_SPRITE_ABOVE_DISPLAYA 0
#define DISPPLANE_SPRITE_ABOVE_OVERLAY 1
#define DSPABASE 0x70184
#define DSPASTRIDE 0x70188
#define DSPBBASE 0x71184
#define DSPBSTRIDE 0x71188
#define VGACNTRL 0x71400
#define VGA_DISABLE (1 << 31)
#define VGA_ENABLE 0
#define VGA_PIPE_SELECT_SHIFT 29
#define VGA_PALETTE_READ_SELECT 23
#define VGA_PALETTE_A_WRITE_DISABLE (1 << 22)
#define VGA_PALETTE_B_WRITE_DISABLE (1 << 21)
#define VGA_LEGACY_PALETTE (1 << 20)
#define VGA_6BIT_DAC 0
#define VGA_8BIT_DAC (1 << 20)
#define ADD_ID 0x71408
#define ADD_ID_MASK 0xff
/* BIOS scratch area registers (830M and 845G). */
#define SWF0 0x71410
#define SWF1 0x71414
#define SWF2 0x71418
#define SWF3 0x7141c
#define SWF4 0x71420
#define SWF5 0x71424
#define SWF6 0x71428
/* BIOS scratch area registers (852GM, 855GM, 865G). */
#define SWF00 0x70410
#define SWF01 0x70414
#define SWF02 0x70418
#define SWF03 0x7041c
#define SWF04 0x70420
#define SWF05 0x70424
#define SWF06 0x70428
#define SWF10 SWF0
#define SWF11 SWF1
#define SWF12 SWF2
#define SWF13 SWF3
#define SWF14 SWF4
#define SWF15 SWF5
#define SWF16 SWF6
#define SWF30 0x72414
#define SWF31 0x72418
#define SWF32 0x7241c
/* Memory Commands */
#define MI_NOOP (0x00 << 23)
#define MI_NOOP_WRITE_ID (1 << 22)
#define MI_NOOP_ID_MASK ((1 << 22) - 1)
#define MI_FLUSH (0x04 << 23)
#define MI_WRITE_DIRTY_STATE (1 << 4)
#define MI_END_SCENE (1 << 3)
#define MI_INHIBIT_RENDER_CACHE_FLUSH (1 << 2)
#define MI_INVALIDATE_MAP_CACHE (1 << 0)
#define MI_STORE_DWORD_IMM ((0x20 << 23) | 1)
/* 2D Commands */
#define COLOR_BLT_CMD ((2 << 29) | (0x40 << 22) | 3)
#define XY_COLOR_BLT_CMD ((2 << 29) | (0x50 << 22) | 4)
#define XY_SETUP_CLIP_BLT_CMD ((2 << 29) | (0x03 << 22) | 1)
#define XY_SRC_COPY_BLT_CMD ((2 << 29) | (0x53 << 22) | 6)
#define SRC_COPY_BLT_CMD ((2 << 29) | (0x43 << 22) | 4)
#define XY_MONO_PAT_BLT_CMD ((2 << 29) | (0x52 << 22) | 7)
#define XY_MONO_SRC_BLT_CMD ((2 << 29) | (0x54 << 22) | 6)
#define XY_MONO_SRC_IMM_BLT_CMD ((2 << 29) | (0x71 << 22) | 5)
#define TXT_IMM_BLT_CMD ((2 << 29) | (0x30 << 22) | 2)
#define SETUP_BLT_CMD ((2 << 29) | (0x00 << 22) | 6)
#define DW_LENGTH_MASK 0xff
#define WRITE_ALPHA (1 << 21)
#define WRITE_RGB (1 << 20)
#define VERT_SEED (3 << 8)
#define HORIZ_SEED (3 << 12)
#define COLOR_DEPTH_8 (0 << 24)
#define COLOR_DEPTH_16 (1 << 24)
#define COLOR_DEPTH_32 (3 << 24)
#define SRC_ROP_GXCOPY 0xcc
#define SRC_ROP_GXXOR 0x66
#define PAT_ROP_GXCOPY 0xf0
#define PAT_ROP_GXXOR 0x5a
#define PITCH_SHIFT 0
#define ROP_SHIFT 16
#define WIDTH_SHIFT 0
#define HEIGHT_SHIFT 16
/* in bytes */
#define MAX_MONO_IMM_SIZE 128
/*** Macros ***/
/* I/O macros */
#define INREG8(addr) readb((u8 __iomem *)(dinfo->mmio_base + (addr)))
#define INREG16(addr) readw((u16 __iomem *)(dinfo->mmio_base + (addr)))
#define INREG(addr) readl((u32 __iomem *)(dinfo->mmio_base + (addr)))
#define OUTREG8(addr, val) writeb((val),(u8 __iomem *)(dinfo->mmio_base + \
(addr)))
#define OUTREG16(addr, val) writew((val),(u16 __iomem *)(dinfo->mmio_base + \
(addr)))
#define OUTREG(addr, val) writel((val),(u32 __iomem *)(dinfo->mmio_base + \
(addr)))
/* Ring buffer macros */
#define OUT_RING(n) do { \
writel((n), (u32 __iomem *)(dinfo->ring.virtual + dinfo->ring_tail));\
dinfo->ring_tail += 4; \
dinfo->ring_tail &= dinfo->ring_tail_mask; \
} while (0)
#define START_RING(n) do { \
if (dinfo->ring_space < (n) * 4) \
wait_ring(dinfo,(n) * 4); \
dinfo->ring_space -= (n) * 4; \
} while (0)
#define ADVANCE_RING() do { \
OUTREG(PRI_RING_TAIL, dinfo->ring_tail); \
} while (0)
#define DO_RING_IDLE() do { \
u32 head, tail; \
do { \
head = INREG(PRI_RING_HEAD) & RING_HEAD_MASK; \
tail = INREG(PRI_RING_TAIL) & RING_TAIL_MASK; \
udelay(10); \
} while (head != tail); \
} while (0)
/* function protoypes */
extern int intelfbhw_get_chipset(struct pci_dev *pdev, struct intelfb_info *dinfo);
extern int intelfbhw_get_memory(struct pci_dev *pdev, int *aperture_size,
int *stolen_size);
extern int intelfbhw_check_non_crt(struct intelfb_info *dinfo);
extern const char *intelfbhw_dvo_to_string(int dvo);
extern int intelfbhw_validate_mode(struct intelfb_info *dinfo,
struct fb_var_screeninfo *var);
extern int intelfbhw_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info);
extern void intelfbhw_do_blank(int blank, struct fb_info *info);
extern void intelfbhw_setcolreg(struct intelfb_info *dinfo, unsigned regno,
unsigned red, unsigned green, unsigned blue,
unsigned transp);
extern int intelfbhw_read_hw_state(struct intelfb_info *dinfo,
struct intelfb_hwstate *hw, int flag);
extern void intelfbhw_print_hw_state(struct intelfb_info *dinfo,
struct intelfb_hwstate *hw);
extern int intelfbhw_mode_to_hw(struct intelfb_info *dinfo,
struct intelfb_hwstate *hw,
struct fb_var_screeninfo *var);
extern int intelfbhw_program_mode(struct intelfb_info *dinfo,
const struct intelfb_hwstate *hw, int blank);
extern void intelfbhw_do_sync(struct intelfb_info *dinfo);
extern void intelfbhw_2d_stop(struct intelfb_info *dinfo);
extern void intelfbhw_2d_start(struct intelfb_info *dinfo);
extern void intelfbhw_do_fillrect(struct intelfb_info *dinfo, u32 x, u32 y,
u32 w, u32 h, u32 color, u32 pitch, u32 bpp,
u32 rop);
extern void intelfbhw_do_bitblt(struct intelfb_info *dinfo, u32 curx, u32 cury,
u32 dstx, u32 dsty, u32 w, u32 h, u32 pitch,
u32 bpp);
extern int intelfbhw_do_drawglyph(struct intelfb_info *dinfo, u32 fg, u32 bg,
u32 w, u32 h, const u8* cdat, u32 x, u32 y,
u32 pitch, u32 bpp);
extern void intelfbhw_cursor_init(struct intelfb_info *dinfo);
extern void intelfbhw_cursor_hide(struct intelfb_info *dinfo);
extern void intelfbhw_cursor_show(struct intelfb_info *dinfo);
extern void intelfbhw_cursor_setpos(struct intelfb_info *dinfo, int x, int y);
extern void intelfbhw_cursor_setcolor(struct intelfb_info *dinfo, u32 bg,
u32 fg);
extern void intelfbhw_cursor_load(struct intelfb_info *dinfo, int width,
int height, u8 *data);
extern void intelfbhw_cursor_reset(struct intelfb_info *dinfo);
extern int intelfbhw_enable_irq(struct intelfb_info *dinfo);
extern void intelfbhw_disable_irq(struct intelfb_info *dinfo);
extern int intelfbhw_wait_for_vsync(struct intelfb_info *dinfo, u32 pipe);
extern int intelfbhw_active_pipe(const struct intelfb_hwstate *hw);
#endif /* _INTELFBHW_H */