LXR linux/drivers/gpu/drm/i915/intel

   1/*
   2 * Copyright © 2013 Intel Corporation
   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 _INTEL_DSI_H
  25#define _INTEL_DSI_H
  26
  27#include <drm/drmP.h>
  28#include <drm/drm_crtc.h>
  29#include <drm/drm_mipi_dsi.h>
  30#include "intel_drv.h"
  31
  32/* Dual Link support */
  33#define DSI_DUAL_LINK_NONE              0
  34#define DSI_DUAL_LINK_FRONT_BACK        1
  35#define DSI_DUAL_LINK_PIXEL_ALT         2
  36
  37struct intel_dsi_host;
  38
  39struct intel_dsi {
  40        struct intel_encoder base;
  41
  42        struct drm_panel *panel;
  43        struct intel_dsi_host *dsi_hosts[I915_MAX_PORTS];
  44
  45        struct intel_connector *attached_connector;
  46
  47        /* bit mask of ports being driven */
  48        u16 ports;
  49
  50        /* if true, use HS mode, otherwise LP */
  51        bool hs;
  52
  53        /* virtual channel */
  54        int channel;
  55
  56        /* Video mode or command mode */
  57        u16 operation_mode;
  58
  59        /* number of DSI lanes */
  60        unsigned int lane_count;
  61
  62        /* video mode pixel format for MIPI_DSI_FUNC_PRG register */
  63        u32 pixel_format;
  64
  65        /* video mode format for MIPI_VIDEO_MODE_FORMAT register */
  66        u32 video_mode_format;
  67
  68        /* eot for MIPI_EOT_DISABLE register */
  69        u8 eotp_pkt;
  70        u8 clock_stop;
  71
  72        u8 escape_clk_div;
  73        u8 dual_link;
  74        u8 pixel_overlap;
  75        u32 port_bits;
  76        u32 bw_timer;
  77        u32 dphy_reg;
  78        u32 video_frmt_cfg_bits;
  79        u16 lp_byte_clk;
  80
  81        /* timeouts in byte clocks */
  82        u16 lp_rx_timeout;
  83        u16 turn_arnd_val;
  84        u16 rst_timer_val;
  85        u16 hs_to_lp_count;
  86        u16 clk_lp_to_hs_count;
  87        u16 clk_hs_to_lp_count;
  88
  89        u16 init_count;
  90        u32 pclk;
  91        u16 burst_mode_ratio;
  92
  93        /* all delays in ms */
  94        u16 backlight_off_delay;
  95        u16 backlight_on_delay;
  96        u16 panel_on_delay;
  97        u16 panel_off_delay;
  98        u16 panel_pwr_cycle_delay;
  99};
 100
 101struct intel_dsi_host {
 102        struct mipi_dsi_host base;
 103        struct intel_dsi *intel_dsi;
 104        enum port port;
 105
 106        /* our little hack */
 107        struct mipi_dsi_device *device;
 108};
 109
 110static inline struct intel_dsi_host *to_intel_dsi_host(struct mipi_dsi_host *h)
 111{
 112        return container_of(h, struct intel_dsi_host, base);
 113}
 114
 115#define for_each_dsi_port(__port, __ports_mask) \
 116        for ((__port) = PORT_A; (__port) < I915_MAX_PORTS; (__port)++)  \
 117                if ((__ports_mask) & (1 << (__port)))
 118
 119static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
 120{
 121        return container_of(encoder, struct intel_dsi, base.base);
 122}
 123
 124extern void vlv_enable_dsi_pll(struct intel_encoder *encoder);
 125extern void vlv_disable_dsi_pll(struct intel_encoder *encoder);
 126extern u32 vlv_get_dsi_pclk(struct intel_encoder *encoder, int pipe_bpp);
 127
 128struct drm_panel *vbt_panel_init(struct intel_dsi *intel_dsi, u16 panel_id);
 129
 130#endif /* _INTEL_DSI_H */
 131