LXR linux/drivers/gpu/drm/nouveau/nouveau

   1/*
   2 * Copyright 2007-2008 Nouveau Project
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice (including the next
  12 * paragraph) shall be included in all copies or substantial portions of the
  13 * Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21 * DEALINGS IN THE SOFTWARE.
  22 */
  23
  24#ifndef __NOUVEAU_DISPBIOS_H__
  25#define __NOUVEAU_DISPBIOS_H__
  26
  27#define DCB_MAX_NUM_ENTRIES 16
  28#define DCB_MAX_NUM_I2C_ENTRIES 16
  29#define DCB_MAX_NUM_GPIO_ENTRIES 32
  30#define DCB_MAX_NUM_CONNECTOR_ENTRIES 16
  31
  32#define DCB_LOC_ON_CHIP 0
  33
  34#define ROM16(x) le16_to_cpu(*(u16 *)&(x))
  35#define ROM32(x) le32_to_cpu(*(u32 *)&(x))
  36#define ROM48(x) ({ u8 *p = &(x); (u64)ROM16(p[4]) << 32 | ROM32(p[0]); })
  37#define ROM64(x) le64_to_cpu(*(u64 *)&(x))
  38#define ROMPTR(d,x) ({            \
  39        struct nouveau_drm *drm = nouveau_drm((d)); \
  40        ROM16(x) ? &drm->vbios.data[ROM16(x)] : NULL; \
  41})
  42
  43struct bit_entry {
  44        uint8_t  id;
  45        uint8_t  version;
  46        uint16_t length;
  47        uint16_t offset;
  48        uint8_t *data;
  49};
  50
  51int bit_table(struct drm_device *, u8 id, struct bit_entry *);
  52
  53#include <subdev/bios/dcb.h>
  54#include <subdev/bios/conn.h>
  55
  56struct dcb_table {
  57        uint8_t version;
  58        int entries;
  59        struct dcb_output entry[DCB_MAX_NUM_ENTRIES];
  60};
  61
  62enum nouveau_or {
  63        DCB_OUTPUT_A = (1 << 0),
  64        DCB_OUTPUT_B = (1 << 1),
  65        DCB_OUTPUT_C = (1 << 2)
  66};
  67
  68enum LVDS_script {
  69        /* Order *does* matter here */
  70        LVDS_INIT = 1,
  71        LVDS_RESET,
  72        LVDS_BACKLIGHT_ON,
  73        LVDS_BACKLIGHT_OFF,
  74        LVDS_PANEL_ON,
  75        LVDS_PANEL_OFF
  76};
  77
  78struct nvbios {
  79        struct drm_device *dev;
  80        enum {
  81                NVBIOS_BMP,
  82                NVBIOS_BIT
  83        } type;
  84        uint16_t offset;
  85        uint32_t length;
  86        uint8_t *data;
  87
  88        uint8_t chip_version;
  89
  90        uint32_t dactestval;
  91        uint32_t tvdactestval;
  92        uint8_t digital_min_front_porch;
  93        bool fp_no_ddc;
  94
  95        spinlock_t lock;
  96
  97        bool execute;
  98
  99        uint8_t major_version;
 100        uint8_t feature_byte;
 101        bool is_mobile;
 102
 103        uint32_t fmaxvco, fminvco;
 104
 105        bool old_style_init;
 106        uint16_t init_script_tbls_ptr;
 107        uint16_t extra_init_script_tbl_ptr;
 108
 109        uint16_t ram_restrict_tbl_ptr;
 110        uint8_t ram_restrict_group_count;
 111
 112        struct dcb_table dcb;
 113
 114        struct {
 115                int crtchead;
 116        } state;
 117
 118        struct {
 119                uint16_t fptablepointer;        /* also used by tmds */
 120                uint16_t fpxlatetableptr;
 121                int xlatwidth;
 122                uint16_t lvdsmanufacturerpointer;
 123                uint16_t fpxlatemanufacturertableptr;
 124                uint16_t mode_ptr;
 125                uint16_t xlated_entry;
 126                bool power_off_for_reset;
 127                bool reset_after_pclk_change;
 128                bool dual_link;
 129                bool link_c_increment;
 130                bool if_is_24bit;
 131                int duallink_transition_clk;
 132                uint8_t strapless_is_24bit;
 133                uint8_t *edid;
 134
 135                /* will need resetting after suspend */
 136                int last_script_invoc;
 137                bool lvds_init_run;
 138        } fp;
 139
 140        struct {
 141                uint16_t output0_script_ptr;
 142                uint16_t output1_script_ptr;
 143        } tmds;
 144
 145        struct {
 146                uint16_t mem_init_tbl_ptr;
 147                uint16_t sdr_seq_tbl_ptr;
 148                uint16_t ddr_seq_tbl_ptr;
 149
 150                struct {
 151                        uint8_t crt, tv, panel;
 152                } i2c_indices;
 153
 154                uint16_t lvds_single_a_script_ptr;
 155        } legacy;
 156};
 157
 158void *olddcb_table(struct drm_device *);
 159void *olddcb_outp(struct drm_device *, u8 idx);
 160int olddcb_outp_foreach(struct drm_device *, void *data,
 161                     int (*)(struct drm_device *, void *, int idx, u8 *outp));
 162u8 *olddcb_conntab(struct drm_device *);
 163u8 *olddcb_conn(struct drm_device *, u8 idx);
 164
 165int nouveau_bios_init(struct drm_device *);
 166void nouveau_bios_takedown(struct drm_device *dev);
 167int nouveau_run_vbios_init(struct drm_device *);
 168struct dcb_connector_table_entry *
 169nouveau_bios_connector_entry(struct drm_device *, int index);
 170bool nouveau_bios_fp_mode(struct drm_device *, struct drm_display_mode *);
 171uint8_t *nouveau_bios_embedded_edid(struct drm_device *);
 172int nouveau_bios_parse_lvds_table(struct drm_device *, int pxclk,
 173                                         bool *dl, bool *if_is_24bit);
 174int run_tmds_table(struct drm_device *, struct dcb_output *,
 175                          int head, int pxclk);
 176int call_lvds_script(struct drm_device *, struct dcb_output *, int head,
 177                            enum LVDS_script, int pxclk);
 178
 179#endif
 180