linux/include/video/omapdss.h

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/*
* Copyright (C) 2008 Nokia Corporation
* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __OMAP_OMAPDSS_H
#define __OMAP_OMAPDSS_H
#include <linux/list.h>
#include <linux/kobject.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <video/videomode.h>
#define DISPC_IRQ_FRAMEDONE (1 << 0)
#define DISPC_IRQ_VSYNC (1 << 1)
#define DISPC_IRQ_EVSYNC_EVEN (1 << 2)
#define DISPC_IRQ_EVSYNC_ODD (1 << 3)
#define DISPC_IRQ_ACBIAS_COUNT_STAT (1 << 4)
#define DISPC_IRQ_PROG_LINE_NUM (1 << 5)
#define DISPC_IRQ_GFX_FIFO_UNDERFLOW (1 << 6)
#define DISPC_IRQ_GFX_END_WIN (1 << 7)
#define DISPC_IRQ_PAL_GAMMA_MASK (1 << 8)
#define DISPC_IRQ_OCP_ERR (1 << 9)
#define DISPC_IRQ_VID1_FIFO_UNDERFLOW (1 << 10)
#define DISPC_IRQ_VID1_END_WIN (1 << 11)
#define DISPC_IRQ_VID2_FIFO_UNDERFLOW (1 << 12)
#define DISPC_IRQ_VID2_END_WIN (1 << 13)
#define DISPC_IRQ_SYNC_LOST (1 << 14)
#define DISPC_IRQ_SYNC_LOST_DIGIT (1 << 15)
#define DISPC_IRQ_WAKEUP (1 << 16)
#define DISPC_IRQ_SYNC_LOST2 (1 << 17)
#define DISPC_IRQ_VSYNC2 (1 << 18)
#define DISPC_IRQ_VID3_END_WIN (1 << 19)
#define DISPC_IRQ_VID3_FIFO_UNDERFLOW (1 << 20)
#define DISPC_IRQ_ACBIAS_COUNT_STAT2 (1 << 21)
#define DISPC_IRQ_FRAMEDONE2 (1 << 22)
#define DISPC_IRQ_FRAMEDONEWB (1 << 23)
#define DISPC_IRQ_FRAMEDONETV (1 << 24)
#define DISPC_IRQ_WBBUFFEROVERFLOW (1 << 25)
#define DISPC_IRQ_SYNC_LOST3 (1 << 27)
#define DISPC_IRQ_VSYNC3 (1 << 28)
#define DISPC_IRQ_ACBIAS_COUNT_STAT3 (1 << 29)
#define DISPC_IRQ_FRAMEDONE3 (1 << 30)
struct omap_dss_device;
struct omap_overlay_manager;
struct dss_lcd_mgr_config;
OMAPDSS: Provide an interface for audio support There exist several display technologies and standards that support audio as well. Hence, it is relevant to update the DSS device driver to provide an audio interface that may be used by an audio driver or any other driver interested in the functionality. The audio_enable function is intended to prepare the relevant IP for playback (e.g., enabling an audio FIFO, taking in/out of reset some IP, enabling companion chips, etc). It is intended to be called before audio_start. The audio_disable function performs the reverse operation and is intended to be called after audio_stop. While a given DSS device driver may support audio, it is possible that for certain configurations audio is not supported (e.g., an HDMI display using a VESA video timing). The audio_supported function is intended to query whether the current configuration of the display supports audio. The audio_config function is intended to configure all the relevant audio parameters of the display. In order to make the function independent of any specific DSS device driver, a struct omap_dss_audio is defined. Its purpose is to contain all the required parameters for audio configuration. At the moment, such structure contains pointers to IEC-60958 channel status word and CEA-861 audio infoframe structures. This should be enough to support HDMI and DisplayPort, as both are based on CEA-861 and IEC-60958. The omap_dss_audio structure may be extended in the future if required. The audio_enable/disable, audio_config and audio_supported functions could be implemented as functions that may sleep. Hence, they should not be called while holding a spinlock or a readlock. The audio_start/audio_stop function is intended to effectively start/stop audio playback after the configuration has taken place. These functions are designed to be used in an atomic context. Hence, audio_start should return quickly and be called only after all the needed resources for audio playback (audio FIFOs, DMA channels, companion chips, etc) have been enabled to begin data transfers. audio_stop is designed to only stop the audio transfers. The resources used for playback are released using audio_disable. A new enum omap_dss_audio_state is introduced to help the implementations of the interface to keep track of the audio state. The initial state is _DISABLED; then, the state transitions to _CONFIGURED, and then, when it is ready to play audio, to _ENABLED. The state _PLAYING is used when the audio is being rendered. Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
2012-03-07 01:20:37 +01:00
struct snd_aes_iec958;
struct snd_cea_861_aud_if;
enum omap_display_type {
OMAP_DISPLAY_TYPE_NONE = 0,
OMAP_DISPLAY_TYPE_DPI = 1 << 0,
OMAP_DISPLAY_TYPE_DBI = 1 << 1,
OMAP_DISPLAY_TYPE_SDI = 1 << 2,
OMAP_DISPLAY_TYPE_DSI = 1 << 3,
OMAP_DISPLAY_TYPE_VENC = 1 << 4,
OMAP_DISPLAY_TYPE_HDMI = 1 << 5,
OMAP_DISPLAY_TYPE_DVI = 1 << 6,
};
enum omap_plane {
OMAP_DSS_GFX = 0,
OMAP_DSS_VIDEO1 = 1,
OMAP_DSS_VIDEO2 = 2,
OMAP_DSS_VIDEO3 = 3,
OMAP_DSS_WB = 4,
};
enum omap_channel {
OMAP_DSS_CHANNEL_LCD = 0,
OMAP_DSS_CHANNEL_DIGIT = 1,
OMAP_DSS_CHANNEL_LCD2 = 2,
OMAP_DSS_CHANNEL_LCD3 = 3,
};
enum omap_color_mode {
OMAP_DSS_COLOR_CLUT1 = 1 << 0, /* BITMAP 1 */
OMAP_DSS_COLOR_CLUT2 = 1 << 1, /* BITMAP 2 */
OMAP_DSS_COLOR_CLUT4 = 1 << 2, /* BITMAP 4 */
OMAP_DSS_COLOR_CLUT8 = 1 << 3, /* BITMAP 8 */
OMAP_DSS_COLOR_RGB12U = 1 << 4, /* RGB12, 16-bit container */
OMAP_DSS_COLOR_ARGB16 = 1 << 5, /* ARGB16 */
OMAP_DSS_COLOR_RGB16 = 1 << 6, /* RGB16 */
OMAP_DSS_COLOR_RGB24U = 1 << 7, /* RGB24, 32-bit container */
OMAP_DSS_COLOR_RGB24P = 1 << 8, /* RGB24, 24-bit container */
OMAP_DSS_COLOR_YUV2 = 1 << 9, /* YUV2 4:2:2 co-sited */
OMAP_DSS_COLOR_UYVY = 1 << 10, /* UYVY 4:2:2 co-sited */
OMAP_DSS_COLOR_ARGB32 = 1 << 11, /* ARGB32 */
OMAP_DSS_COLOR_RGBA32 = 1 << 12, /* RGBA32 */
OMAP_DSS_COLOR_RGBX32 = 1 << 13, /* RGBx32 */
OMAP_DSS_COLOR_NV12 = 1 << 14, /* NV12 format: YUV 4:2:0 */
OMAP_DSS_COLOR_RGBA16 = 1 << 15, /* RGBA16 - 4444 */
OMAP_DSS_COLOR_RGBX16 = 1 << 16, /* RGBx16 - 4444 */
OMAP_DSS_COLOR_ARGB16_1555 = 1 << 17, /* ARGB16 - 1555 */
OMAP_DSS_COLOR_XRGB16_1555 = 1 << 18, /* xRGB16 - 1555 */
};
enum omap_dss_load_mode {
OMAP_DSS_LOAD_CLUT_AND_FRAME = 0,
OMAP_DSS_LOAD_CLUT_ONLY = 1,
OMAP_DSS_LOAD_FRAME_ONLY = 2,
OMAP_DSS_LOAD_CLUT_ONCE_FRAME = 3,
};
enum omap_dss_trans_key_type {
OMAP_DSS_COLOR_KEY_GFX_DST = 0,
OMAP_DSS_COLOR_KEY_VID_SRC = 1,
};
enum omap_rfbi_te_mode {
OMAP_DSS_RFBI_TE_MODE_1 = 1,
OMAP_DSS_RFBI_TE_MODE_2 = 2,
};
enum omap_dss_signal_level {
OMAPDSS_SIG_ACTIVE_HIGH = 0,
OMAPDSS_SIG_ACTIVE_LOW = 1,
};
enum omap_dss_signal_edge {
OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
OMAPDSS_DRIVE_SIG_RISING_EDGE,
OMAPDSS_DRIVE_SIG_FALLING_EDGE,
};
enum omap_dss_venc_type {
OMAP_DSS_VENC_TYPE_COMPOSITE,
OMAP_DSS_VENC_TYPE_SVIDEO,
};
enum omap_dss_dsi_pixel_format {
OMAP_DSS_DSI_FMT_RGB888,
OMAP_DSS_DSI_FMT_RGB666,
OMAP_DSS_DSI_FMT_RGB666_PACKED,
OMAP_DSS_DSI_FMT_RGB565,
};
enum omap_dss_dsi_mode {
OMAP_DSS_DSI_CMD_MODE = 0,
OMAP_DSS_DSI_VIDEO_MODE,
};
enum omap_display_caps {
OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE = 1 << 0,
OMAP_DSS_DISPLAY_CAP_TEAR_ELIM = 1 << 1,
};
enum omap_dss_display_state {
OMAP_DSS_DISPLAY_DISABLED = 0,
OMAP_DSS_DISPLAY_ACTIVE,
};
OMAPDSS: Provide an interface for audio support There exist several display technologies and standards that support audio as well. Hence, it is relevant to update the DSS device driver to provide an audio interface that may be used by an audio driver or any other driver interested in the functionality. The audio_enable function is intended to prepare the relevant IP for playback (e.g., enabling an audio FIFO, taking in/out of reset some IP, enabling companion chips, etc). It is intended to be called before audio_start. The audio_disable function performs the reverse operation and is intended to be called after audio_stop. While a given DSS device driver may support audio, it is possible that for certain configurations audio is not supported (e.g., an HDMI display using a VESA video timing). The audio_supported function is intended to query whether the current configuration of the display supports audio. The audio_config function is intended to configure all the relevant audio parameters of the display. In order to make the function independent of any specific DSS device driver, a struct omap_dss_audio is defined. Its purpose is to contain all the required parameters for audio configuration. At the moment, such structure contains pointers to IEC-60958 channel status word and CEA-861 audio infoframe structures. This should be enough to support HDMI and DisplayPort, as both are based on CEA-861 and IEC-60958. The omap_dss_audio structure may be extended in the future if required. The audio_enable/disable, audio_config and audio_supported functions could be implemented as functions that may sleep. Hence, they should not be called while holding a spinlock or a readlock. The audio_start/audio_stop function is intended to effectively start/stop audio playback after the configuration has taken place. These functions are designed to be used in an atomic context. Hence, audio_start should return quickly and be called only after all the needed resources for audio playback (audio FIFOs, DMA channels, companion chips, etc) have been enabled to begin data transfers. audio_stop is designed to only stop the audio transfers. The resources used for playback are released using audio_disable. A new enum omap_dss_audio_state is introduced to help the implementations of the interface to keep track of the audio state. The initial state is _DISABLED; then, the state transitions to _CONFIGURED, and then, when it is ready to play audio, to _ENABLED. The state _PLAYING is used when the audio is being rendered. Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
2012-03-07 01:20:37 +01:00
enum omap_dss_audio_state {
OMAP_DSS_AUDIO_DISABLED = 0,
OMAP_DSS_AUDIO_ENABLED,
OMAP_DSS_AUDIO_CONFIGURED,
OMAP_DSS_AUDIO_PLAYING,
};
struct omap_dss_audio {
struct snd_aes_iec958 *iec;
struct snd_cea_861_aud_if *cea;
};
enum omap_dss_rotation_type {
OMAPDSS: DISPC: Support rotation through TILER TILER is a block in OMAP4's DMM which lets DSS fetch frames in a rotated manner. Physical memory can be mapped to a portion of OMAP's system address space called TILER address space. The TILER address space is split into 8 views. Each view represents a rotated or mirrored form of the mapped physical memory. When a DISPC overlay's base address is programmed to one of these views, the TILER fetches the pixels according to the orientation of the view. A view is further split into 4 containers, each container holds elements of a particular size. Rotation can be achieved at the granularity of elements in the container. For more information on TILER, refer to the Memory Subsytem section in OMAP4 TRM. Rotation type TILER has been added which is used to exploit the capabilities of these 8 views for performing various rotations. When fetching from addresses mapped to TILER space, the DISPC DMA can fetch pixels in either 1D or 2D bursts. The fetch depends on which TILER container we are accessing. Accessing 8, 16 and 32 bit sized containers requires 2D bursts, and page mode sized containers require 1D bursts. The DSS2 user is expected to provide the Tiler address of the view that it is interested in. This is passed to the paddr and p_uv_addr parameters in omap_overlay_info. It is also expected to provide the stride value based on the view's orientation and container type, this should be passed to the screen_width parameter of omap_overlay_info. In calc_tiler_rotation_offset screen_width is used to calculate the required row_inc for DISPC. x_predecim and y_predecim are also used to calculate row_inc and pix_inc thereby adding predecimation support for TILER. Signed-off-by: Chandrabhanu Mahapatra <cmahapatra@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-05-11 15:49:55 +02:00
OMAP_DSS_ROT_DMA = 1 << 0,
OMAP_DSS_ROT_VRFB = 1 << 1,
OMAP_DSS_ROT_TILER = 1 << 2,
};
/* clockwise rotation angle */
enum omap_dss_rotation_angle {
OMAP_DSS_ROT_0 = 0,
OMAP_DSS_ROT_90 = 1,
OMAP_DSS_ROT_180 = 2,
OMAP_DSS_ROT_270 = 3,
};
enum omap_overlay_caps {
OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
OMAP_DSS_OVL_CAP_GLOBAL_ALPHA = 1 << 1,
OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA = 1 << 2,
OMAPDSS/OMAP_VOUT: Fix incorrect OMAP3-alpha compatibility setting On OMAP3, in order to enable alpha blending for LCD and TV managers, we needed to set LCDALPHABLENDERENABLE/TVALPHABLENDERENABLE bits in DISPC_CONFIG. On OMAP4, alpha blending is always enabled by default, if the above bits are set, we switch to an OMAP3 compatibility mode where the zorder values in the pipeline attribute registers are ignored and a fixed priority is configured. Rename the manager_info member "alpha_enabled" to "partial_alpha_enabled" for more clarity. Introduce two dss_features FEAT_ALPHA_FIXED_ZORDER and FEAT_ALPHA_FREE_ZORDER which represent OMAP3-alpha compatibility mode and OMAP4 alpha mode respectively. Introduce an overlay cap for ZORDER. The DSS2 user is expected to check for the ZORDER cap, if an overlay doesn't have this cap, the user is expected to set the parameter partial_alpha_enabled. If the overlay has ZORDER cap, the DSS2 user can assume that alpha blending is already enabled. Don't support OMAP3 compatibility mode for now. Trying to read/write to alpha_blending_enabled sysfs attribute issues a warning for OMAP4 and does not set the LCDALPHABLENDERENABLE/TVALPHABLENDERENABLE bits. Change alpha_enabled to partial_alpha_enabled in the omap_vout driver. Use overlay cap "OMAP_DSS_OVL_CAP_GLOBAL_ALPHA" to check if overlay supports alpha blending or not. Replace this with checks for VIDEO1 pipeline. Cc: linux-media@vger.kernel.org Cc: Lajos Molnar <molnar@ti.com> Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-26 08:17:29 +02:00
OMAP_DSS_OVL_CAP_ZORDER = 1 << 3,
OMAP_DSS_OVL_CAP_POS = 1 << 4,
OMAP_DSS_OVL_CAP_REPLICATION = 1 << 5,
};
enum omap_overlay_manager_caps {
OMAP_DSS_DUMMY_VALUE, /* add a dummy value to prevent compiler error */
};
enum omap_dss_clk_source {
OMAP_DSS_CLK_SRC_FCK = 0, /* OMAP2/3: DSS1_ALWON_FCLK
* OMAP4: DSS_FCLK */
OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC, /* OMAP3: DSI1_PLL_FCLK
* OMAP4: PLL1_CLK1 */
OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI, /* OMAP3: DSI2_PLL_FCLK
* OMAP4: PLL1_CLK2 */
OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC, /* OMAP4: PLL2_CLK1 */
OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI, /* OMAP4: PLL2_CLK2 */
};
enum omap_hdmi_flags {
OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP = 1 << 0,
};
OMAPDSS: outputs: Create a new entity called outputs The current OMAPDSS design contains 3 software entities: Overlays, Managers and Devices. These map to pipelines, overlay managers and the panels respectively in hardware. One or more overlays connect to a manager to represent a composition, the manager connects to a device(generally a display) to display the content. The part of DSS hardware which isn't represented by any of the above entities are interfaces/outputs that connect to an overlay manager, i.e blocks like DSI, HDMI, VENC and so on. Currently, an overlay manager directly connects to the display, and the output to which it is actually connected is ignored. The panel driver of the display is responsible of calling output specific functions to configure the output. Adding outputs as a new software entity gives us the following benefits: - Have exact information on the possible connections between managers and outputs: A manager can't connect to each and every output, there only limited hardware links between a manager's video port and some of the outputs. - Remove hacks related to connecting managers and devices: Currently, default links between managers and devices are set in a not so clean way. Matching is done via comparing the device type, and the display types supported by the manager. This isn't sufficient to establish all the possible links between managers, outputs and devices in hardware. - Make panel drivers more generic: The DSS panel drivers currently call interface/output specific functions to configure the hardware IP. When making these calls, the driver isn't actually aware of the underlying output. The output driver extracts information from the panel's omap_dss_device pointer to figure out which interface it is connected to, and then configures the corresponding output block. An example of this is when a DSI panel calls dsi functions, the dsi driver figures out whether the panel is connected to DSI1 or DSI2. This isn't correct, and having output as entities will give the panel driver the exact information on which output to configure. Having outputs also gives the opportunity to make panel drivers generic across different platforms/SoCs, this is achieved as omap specific output calls can be replaced by ops of a particular output type. - Have more complex connections between managers, outputs and devices: OMAPDSS currently doesn't support use cases like 2 outputs connect to a single device. This can be achieved by extending properties of outputs to connect to more managers or devices. - Represent writeback as an output: The writeback pipeline fits well in OMAPDSS as compared to overlays, managers or devices. Add a new struct to represent outputs. An output struct holds pointers to the manager and device structs to which it is connected. Add functions which can register/unregister an output, or look for one. Create an enum which represent each output instance. Signed-off-by: Archit Taneja <archit@ti.com>
2012-09-07 14:08:00 +02:00
enum omap_dss_output_id {
OMAP_DSS_OUTPUT_DPI = 1 << 0,
OMAP_DSS_OUTPUT_DBI = 1 << 1,
OMAP_DSS_OUTPUT_SDI = 1 << 2,
OMAP_DSS_OUTPUT_DSI1 = 1 << 3,
OMAP_DSS_OUTPUT_DSI2 = 1 << 4,
OMAP_DSS_OUTPUT_VENC = 1 << 5,
OMAP_DSS_OUTPUT_HDMI = 1 << 6,
};
/* RFBI */
struct rfbi_timings {
int cs_on_time;
int cs_off_time;
int we_on_time;
int we_off_time;
int re_on_time;
int re_off_time;
int we_cycle_time;
int re_cycle_time;
int cs_pulse_width;
int access_time;
int clk_div;
u32 tim[5]; /* set by rfbi_convert_timings() */
int converted;
};
void omap_rfbi_write_command(const void *buf, u32 len);
void omap_rfbi_read_data(void *buf, u32 len);
void omap_rfbi_write_data(const void *buf, u32 len);
void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width,
u16 x, u16 y,
u16 w, u16 h);
int omap_rfbi_enable_te(bool enable, unsigned line);
int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
unsigned hs_pulse_time, unsigned vs_pulse_time,
int hs_pol_inv, int vs_pol_inv, int extif_div);
void rfbi_bus_lock(void);
void rfbi_bus_unlock(void);
/* DSI */
enum omap_dss_dsi_trans_mode {
/* Sync Pulses: both sync start and end packets sent */
OMAP_DSS_DSI_PULSE_MODE,
/* Sync Events: only sync start packets sent */
OMAP_DSS_DSI_EVENT_MODE,
/* Burst: only sync start packets sent, pixels are time compressed */
OMAP_DSS_DSI_BURST_MODE,
};
struct omap_dss_dsi_videomode_timings {
unsigned long hsclk;
unsigned ndl;
unsigned bitspp;
/* pixels */
u16 hact;
/* lines */
u16 vact;
/* DSI video mode blanking data */
/* Unit: byte clock cycles */
u16 hss;
u16 hsa;
u16 hse;
u16 hfp;
u16 hbp;
/* Unit: line clocks */
u16 vsa;
u16 vfp;
u16 vbp;
/* DSI blanking modes */
int blanking_mode;
int hsa_blanking_mode;
int hbp_blanking_mode;
int hfp_blanking_mode;
enum omap_dss_dsi_trans_mode trans_mode;
bool ddr_clk_always_on;
int window_sync;
};
struct omap_dss_dsi_config {
enum omap_dss_dsi_mode mode;
enum omap_dss_dsi_pixel_format pixel_format;
const struct omap_video_timings *timings;
unsigned long hs_clk_min, hs_clk_max;
unsigned long lp_clk_min, lp_clk_max;
bool ddr_clk_always_on;
enum omap_dss_dsi_trans_mode trans_mode;
};
void dsi_bus_lock(struct omap_dss_device *dssdev);
void dsi_bus_unlock(struct omap_dss_device *dssdev);
int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel, u8 *data,
int len);
int dsi_vc_generic_write(struct omap_dss_device *dssdev, int channel, u8 *data,
int len);
int dsi_vc_dcs_write_0(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd);
int dsi_vc_generic_write_0(struct omap_dss_device *dssdev, int channel);
int dsi_vc_dcs_write_1(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
u8 param);
int dsi_vc_generic_write_1(struct omap_dss_device *dssdev, int channel,
u8 param);
int dsi_vc_generic_write_2(struct omap_dss_device *dssdev, int channel,
u8 param1, u8 param2);
int dsi_vc_dcs_write_nosync(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
int dsi_vc_generic_write_nosync(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
int dsi_vc_dcs_read(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
u8 *buf, int buflen);
int dsi_vc_generic_read_0(struct omap_dss_device *dssdev, int channel, u8 *buf,
int buflen);
int dsi_vc_generic_read_1(struct omap_dss_device *dssdev, int channel, u8 param,
u8 *buf, int buflen);
int dsi_vc_generic_read_2(struct omap_dss_device *dssdev, int channel,
u8 param1, u8 param2, u8 *buf, int buflen);
int dsi_vc_set_max_rx_packet_size(struct omap_dss_device *dssdev, int channel,
u16 len);
int dsi_vc_send_null(struct omap_dss_device *dssdev, int channel);
int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int channel);
int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel);
void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel);
enum omapdss_version {
OMAPDSS_VER_UNKNOWN = 0,
OMAPDSS_VER_OMAP24xx,
OMAPDSS_VER_OMAP34xx_ES1, /* OMAP3430 ES1.0, 2.0 */
OMAPDSS_VER_OMAP34xx_ES3, /* OMAP3430 ES3.0+ */
OMAPDSS_VER_OMAP3630,
OMAPDSS_VER_AM35xx,
OMAPDSS_VER_OMAP4430_ES1, /* OMAP4430 ES1.0 */
OMAPDSS_VER_OMAP4430_ES2, /* OMAP4430 ES2.0, 2.1, 2.2 */
OMAPDSS_VER_OMAP4, /* All other OMAP4s */
OMAPDSS_VER_OMAP5,
};
/* Board specific data */
struct omap_dss_board_info {
int (*get_context_loss_count)(struct device *dev);
int num_devices;
struct omap_dss_device **devices;
struct omap_dss_device *default_device;
const char *default_display_name;
int (*dsi_enable_pads)(int dsi_id, unsigned lane_mask);
void (*dsi_disable_pads)(int dsi_id, unsigned lane_mask);
int (*set_min_bus_tput)(struct device *dev, unsigned long r);
enum omapdss_version version;
};
/* Init with the board info */
extern int omap_display_init(struct omap_dss_board_info *board_data);
/* HDMI mux init*/
extern int omap_hdmi_init(enum omap_hdmi_flags flags);
struct omap_video_timings {
/* Unit: pixels */
u16 x_res;
/* Unit: pixels */
u16 y_res;
/* Unit: KHz */
u32 pixel_clock;
/* Unit: pixel clocks */
u16 hsw; /* Horizontal synchronization pulse width */
/* Unit: pixel clocks */
u16 hfp; /* Horizontal front porch */
/* Unit: pixel clocks */
u16 hbp; /* Horizontal back porch */
/* Unit: line clocks */
u16 vsw; /* Vertical synchronization pulse width */
/* Unit: line clocks */
u16 vfp; /* Vertical front porch */
/* Unit: line clocks */
u16 vbp; /* Vertical back porch */
/* Vsync logic level */
enum omap_dss_signal_level vsync_level;
/* Hsync logic level */
enum omap_dss_signal_level hsync_level;
/* Interlaced or Progressive timings */
bool interlace;
/* Pixel clock edge to drive LCD data */
enum omap_dss_signal_edge data_pclk_edge;
/* Data enable logic level */
enum omap_dss_signal_level de_level;
/* Pixel clock edges to drive HSYNC and VSYNC signals */
enum omap_dss_signal_edge sync_pclk_edge;
};
#ifdef CONFIG_OMAP2_DSS_VENC
/* Hardcoded timings for tv modes. Venc only uses these to
* identify the mode, and does not actually use the configs
* itself. However, the configs should be something that
* a normal monitor can also show */
extern const struct omap_video_timings omap_dss_pal_timings;
extern const struct omap_video_timings omap_dss_ntsc_timings;
#endif
struct omap_dss_cpr_coefs {
s16 rr, rg, rb;
s16 gr, gg, gb;
s16 br, bg, bb;
};
struct omap_overlay_info {
u32 paddr;
u32 p_uv_addr; /* for NV12 format */
u16 screen_width;
u16 width;
u16 height;
enum omap_color_mode color_mode;
u8 rotation;
enum omap_dss_rotation_type rotation_type;
bool mirror;
u16 pos_x;
u16 pos_y;
u16 out_width; /* if 0, out_width == width */
u16 out_height; /* if 0, out_height == height */
u8 global_alpha;
u8 pre_mult_alpha;
u8 zorder;
};
struct omap_overlay {
struct kobject kobj;
struct list_head list;
/* static fields */
const char *name;
enum omap_plane id;
enum omap_color_mode supported_modes;
enum omap_overlay_caps caps;
/* dynamic fields */
struct omap_overlay_manager *manager;
/*
* The following functions do not block:
*
* is_enabled
* set_overlay_info
* get_overlay_info
*
* The rest of the functions may block and cannot be called from
* interrupt context
*/
int (*enable)(struct omap_overlay *ovl);
int (*disable)(struct omap_overlay *ovl);
bool (*is_enabled)(struct omap_overlay *ovl);
int (*set_manager)(struct omap_overlay *ovl,
struct omap_overlay_manager *mgr);
int (*unset_manager)(struct omap_overlay *ovl);
int (*set_overlay_info)(struct omap_overlay *ovl,
struct omap_overlay_info *info);
void (*get_overlay_info)(struct omap_overlay *ovl,
struct omap_overlay_info *info);
int (*wait_for_go)(struct omap_overlay *ovl);
struct omap_dss_device *(*get_device)(struct omap_overlay *ovl);
};
struct omap_overlay_manager_info {
u32 default_color;
enum omap_dss_trans_key_type trans_key_type;
u32 trans_key;
bool trans_enabled;
OMAPDSS/OMAP_VOUT: Fix incorrect OMAP3-alpha compatibility setting On OMAP3, in order to enable alpha blending for LCD and TV managers, we needed to set LCDALPHABLENDERENABLE/TVALPHABLENDERENABLE bits in DISPC_CONFIG. On OMAP4, alpha blending is always enabled by default, if the above bits are set, we switch to an OMAP3 compatibility mode where the zorder values in the pipeline attribute registers are ignored and a fixed priority is configured. Rename the manager_info member "alpha_enabled" to "partial_alpha_enabled" for more clarity. Introduce two dss_features FEAT_ALPHA_FIXED_ZORDER and FEAT_ALPHA_FREE_ZORDER which represent OMAP3-alpha compatibility mode and OMAP4 alpha mode respectively. Introduce an overlay cap for ZORDER. The DSS2 user is expected to check for the ZORDER cap, if an overlay doesn't have this cap, the user is expected to set the parameter partial_alpha_enabled. If the overlay has ZORDER cap, the DSS2 user can assume that alpha blending is already enabled. Don't support OMAP3 compatibility mode for now. Trying to read/write to alpha_blending_enabled sysfs attribute issues a warning for OMAP4 and does not set the LCDALPHABLENDERENABLE/TVALPHABLENDERENABLE bits. Change alpha_enabled to partial_alpha_enabled in the omap_vout driver. Use overlay cap "OMAP_DSS_OVL_CAP_GLOBAL_ALPHA" to check if overlay supports alpha blending or not. Replace this with checks for VIDEO1 pipeline. Cc: linux-media@vger.kernel.org Cc: Lajos Molnar <molnar@ti.com> Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-09-26 08:17:29 +02:00
bool partial_alpha_enabled;
bool cpr_enable;
struct omap_dss_cpr_coefs cpr_coefs;
};
struct omap_overlay_manager {
struct kobject kobj;
/* static fields */
const char *name;
enum omap_channel id;
enum omap_overlay_manager_caps caps;
struct list_head overlays;
enum omap_display_type supported_displays;
enum omap_dss_output_id supported_outputs;
/* dynamic fields */
struct omap_dss_device *output;
/*
* The following functions do not block:
*
* set_manager_info
* get_manager_info
* apply
*
* The rest of the functions may block and cannot be called from
* interrupt context
*/
int (*set_output)(struct omap_overlay_manager *mgr,
struct omap_dss_device *output);
int (*unset_output)(struct omap_overlay_manager *mgr);
int (*set_manager_info)(struct omap_overlay_manager *mgr,
struct omap_overlay_manager_info *info);
void (*get_manager_info)(struct omap_overlay_manager *mgr,
struct omap_overlay_manager_info *info);
int (*apply)(struct omap_overlay_manager *mgr);
int (*wait_for_go)(struct omap_overlay_manager *mgr);
int (*wait_for_vsync)(struct omap_overlay_manager *mgr);
struct omap_dss_device *(*get_device)(struct omap_overlay_manager *mgr);
};
/* 22 pins means 1 clk lane and 10 data lanes */
#define OMAP_DSS_MAX_DSI_PINS 22
struct omap_dsi_pin_config {
int num_pins;
/*
* pin numbers in the following order:
* clk+, clk-
* data1+, data1-
* data2+, data2-
* ...
*/
int pins[OMAP_DSS_MAX_DSI_PINS];
};
struct omap_dss_writeback_info {
u32 paddr;
u32 p_uv_addr;
u16 buf_width;
u16 width;
u16 height;
enum omap_color_mode color_mode;
u8 rotation;
enum omap_dss_rotation_type rotation_type;
bool mirror;
u8 pre_mult_alpha;
};
struct omapdss_dpi_ops {
int (*connect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
void (*disconnect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
int (*enable)(struct omap_dss_device *dssdev);
void (*disable)(struct omap_dss_device *dssdev);
int (*check_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*set_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*get_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*set_data_lines)(struct omap_dss_device *dssdev, int data_lines);
};
struct omapdss_sdi_ops {
int (*connect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
void (*disconnect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
int (*enable)(struct omap_dss_device *dssdev);
void (*disable)(struct omap_dss_device *dssdev);
int (*check_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*set_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*get_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*set_datapairs)(struct omap_dss_device *dssdev, int datapairs);
};
struct omapdss_dvi_ops {
int (*connect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
void (*disconnect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
int (*enable)(struct omap_dss_device *dssdev);
void (*disable)(struct omap_dss_device *dssdev);
int (*check_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*set_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*get_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
};
struct omapdss_atv_ops {
int (*connect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
void (*disconnect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
int (*enable)(struct omap_dss_device *dssdev);
void (*disable)(struct omap_dss_device *dssdev);
int (*check_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*set_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*get_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*set_type)(struct omap_dss_device *dssdev,
enum omap_dss_venc_type type);
void (*invert_vid_out_polarity)(struct omap_dss_device *dssdev,
bool invert_polarity);
int (*set_wss)(struct omap_dss_device *dssdev, u32 wss);
u32 (*get_wss)(struct omap_dss_device *dssdev);
};
struct omapdss_hdmi_ops {
int (*connect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
void (*disconnect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
int (*enable)(struct omap_dss_device *dssdev);
void (*disable)(struct omap_dss_device *dssdev);
int (*check_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*set_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*get_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
int (*read_edid)(struct omap_dss_device *dssdev, u8 *buf, int len);
bool (*detect)(struct omap_dss_device *dssdev);
/*
* Note: These functions might sleep. Do not call while
* holding a spinlock/readlock.
*/
int (*audio_enable)(struct omap_dss_device *dssdev);
void (*audio_disable)(struct omap_dss_device *dssdev);
bool (*audio_supported)(struct omap_dss_device *dssdev);
int (*audio_config)(struct omap_dss_device *dssdev,
struct omap_dss_audio *audio);
/* Note: These functions may not sleep */
int (*audio_start)(struct omap_dss_device *dssdev);
void (*audio_stop)(struct omap_dss_device *dssdev);
};
struct omapdss_dsi_ops {
int (*connect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
void (*disconnect)(struct omap_dss_device *dssdev,
struct omap_dss_device *dst);
int (*enable)(struct omap_dss_device *dssdev);
void (*disable)(struct omap_dss_device *dssdev, bool disconnect_lanes,
bool enter_ulps);
/* bus configuration */
int (*set_config)(struct omap_dss_device *dssdev,
const struct omap_dss_dsi_config *cfg);
int (*configure_pins)(struct omap_dss_device *dssdev,
const struct omap_dsi_pin_config *pin_cfg);
void (*enable_hs)(struct omap_dss_device *dssdev, int channel,
bool enable);
int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
int (*update)(struct omap_dss_device *dssdev, int channel,
void (*callback)(int, void *), void *data);
void (*bus_lock)(struct omap_dss_device *dssdev);
void (*bus_unlock)(struct omap_dss_device *dssdev);
int (*enable_video_output)(struct omap_dss_device *dssdev, int channel);
void (*disable_video_output)(struct omap_dss_device *dssdev,
int channel);
int (*request_vc)(struct omap_dss_device *dssdev, int *channel);
int (*set_vc_id)(struct omap_dss_device *dssdev, int channel,
int vc_id);
void (*release_vc)(struct omap_dss_device *dssdev, int channel);
/* data transfer */
int (*dcs_write)(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
int (*dcs_write_nosync)(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
int (*dcs_read)(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
u8 *data, int len);
int (*gen_write)(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
int (*gen_write_nosync)(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
int (*gen_read)(struct omap_dss_device *dssdev, int channel,
u8 *reqdata, int reqlen,
u8 *data, int len);
int (*bta_sync)(struct omap_dss_device *dssdev, int channel);
int (*set_max_rx_packet_size)(struct omap_dss_device *dssdev,
int channel, u16 plen);
};
struct omap_dss_device {
OMAPDSS: Add panel dev pointer to dssdev We are about to remove the dss bus support, which also means that the omap_dss_device won't be a real device anymore. This means that the embedded "dev" struct needs to be removed from omap_dss_device. After we've finished the removal of the dss bus, we see the following changes: - struct omap_dss_device won't be a real Linux device anymore, but more like a "display entity". - struct omap_dss_driver won't be a Linux device driver, but "display entity ops". - The panel devices/drivers won't be omapdss devices/drivers, but platform/i2c/spi/etc devices/drivers, whichever fits the control mechanism of the panel. - The panel drivers will create omap_dss_device and omap_dss_driver, fill the required fields, and register the omap_dss_device to omapdss. - omap_dss_device won't have an embedded dev struct anymore, but a dev pointer to the actual device that manages the omap_dss_device. The model described above resembles the model that has been discussed with CDF (common display framework). For the duration of the conversion, we temporarily have two devs in the dssdev, the old "old_dev", which is a full embedded device struct, and the new "dev", which is a pointer to the device. "old_dev" will be removed in the future. For devices belonging to dss bus the dev is initialized to point to old_dev. This way all the code can just use the dev, for both old and new style panels. Both the new and old style panel drivers work during the conversion, and only after the dss bus support is removed will the old style panels stop to compile. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-02-14 13:17:28 +01:00
/* old device, to be removed */
struct device old_dev;
/* new device, pointer to panel device */
struct device *dev;
struct module *owner;
struct list_head panel_list;
/* alias in the form of "display%d" */
char alias[16];
enum omap_display_type type;
enum omap_display_type output_type;
/* obsolete, to be removed */
enum omap_channel channel;
union {
struct {
u8 data_lines;
} dpi;
struct {
u8 channel;
u8 data_lines;
} rfbi;
struct {
u8 datapairs;
} sdi;
struct {
int module;
} dsi;
struct {
enum omap_dss_venc_type type;
bool invert_polarity;
} venc;
} phy;
struct {
struct omap_video_timings timings;
enum omap_dss_dsi_pixel_format dsi_pix_fmt;
enum omap_dss_dsi_mode dsi_mode;
} panel;
struct {
u8 pixel_size;
struct rfbi_timings rfbi_timings;
} ctrl;
const char *name;
/* used to match device to driver */
const char *driver_name;
void *data;
struct omap_dss_driver *driver;
union {
const struct omapdss_dpi_ops *dpi;
const struct omapdss_sdi_ops *sdi;
const struct omapdss_dvi_ops *dvi;
const struct omapdss_hdmi_ops *hdmi;
const struct omapdss_atv_ops *atv;
const struct omapdss_dsi_ops *dsi;
} ops;
/* helper variable for driver suspend/resume */
bool activate_after_resume;
enum omap_display_caps caps;
struct omap_dss_device *output;
enum omap_dss_display_state state;
OMAPDSS: Provide an interface for audio support There exist several display technologies and standards that support audio as well. Hence, it is relevant to update the DSS device driver to provide an audio interface that may be used by an audio driver or any other driver interested in the functionality. The audio_enable function is intended to prepare the relevant IP for playback (e.g., enabling an audio FIFO, taking in/out of reset some IP, enabling companion chips, etc). It is intended to be called before audio_start. The audio_disable function performs the reverse operation and is intended to be called after audio_stop. While a given DSS device driver may support audio, it is possible that for certain configurations audio is not supported (e.g., an HDMI display using a VESA video timing). The audio_supported function is intended to query whether the current configuration of the display supports audio. The audio_config function is intended to configure all the relevant audio parameters of the display. In order to make the function independent of any specific DSS device driver, a struct omap_dss_audio is defined. Its purpose is to contain all the required parameters for audio configuration. At the moment, such structure contains pointers to IEC-60958 channel status word and CEA-861 audio infoframe structures. This should be enough to support HDMI and DisplayPort, as both are based on CEA-861 and IEC-60958. The omap_dss_audio structure may be extended in the future if required. The audio_enable/disable, audio_config and audio_supported functions could be implemented as functions that may sleep. Hence, they should not be called while holding a spinlock or a readlock. The audio_start/audio_stop function is intended to effectively start/stop audio playback after the configuration has taken place. These functions are designed to be used in an atomic context. Hence, audio_start should return quickly and be called only after all the needed resources for audio playback (audio FIFOs, DMA channels, companion chips, etc) have been enabled to begin data transfers. audio_stop is designed to only stop the audio transfers. The resources used for playback are released using audio_disable. A new enum omap_dss_audio_state is introduced to help the implementations of the interface to keep track of the audio state. The initial state is _DISABLED; then, the state transitions to _CONFIGURED, and then, when it is ready to play audio, to _ENABLED. The state _PLAYING is used when the audio is being rendered. Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
2012-03-07 01:20:37 +01:00
enum omap_dss_audio_state audio_state;
/* OMAP DSS output specific fields */
struct list_head list;
/* DISPC channel for this output */
enum omap_channel dispc_channel;
/* output instance */
enum omap_dss_output_id id;
/* dynamic fields */
struct omap_overlay_manager *manager;
struct omap_dss_device *device;
};
struct omap_dss_hdmi_data
{
int ct_cp_hpd_gpio;
int ls_oe_gpio;
int hpd_gpio;
};
struct omap_dss_driver {
struct device_driver driver;
int (*probe)(struct omap_dss_device *);
void (*remove)(struct omap_dss_device *);
OMAPDSS: Implement display (dis)connect support We currently have two steps in panel initialization and startup: probing and enabling. After the panel has been probed, it's ready and can be configured and later enabled. This model is not enough with more complex display pipelines, where we may have, for example, two panels, of which only one can be used at a time, connected to the same video output. To support that kind of scenarios, we need to add new step to the initialization: connect. This patch adds support for connecting and disconnecting panels. After probe, but before connect, no panel ops should be called. When the connect is called, a proper video pipeline is established, and the panel is ready for use. If some part in the video pipeline is already connected (by some other panel), the connect call fails. One key difference with the old style setup is that connect() handles also connecting to the overlay manager. This means that the omapfb (or omapdrm) no longer needs to figure out which overlay manager to use, but it can just call connect() on the panel, and the proper overlay manager is connected by omapdss. This also allows us to add back the support for dynamic switching between two exclusive panels. However, the current panel device model is not changed to support this, as the new device model is implemented in the following patches and the old model will be removed. The new device model supports dynamic switching. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-05-08 15:23:32 +02:00
int (*connect)(struct omap_dss_device *dssdev);
void (*disconnect)(struct omap_dss_device *dssdev);
int (*enable)(struct omap_dss_device *display);
void (*disable)(struct omap_dss_device *display);
int (*run_test)(struct omap_dss_device *display, int test);
int (*update)(struct omap_dss_device *dssdev,
u16 x, u16 y, u16 w, u16 h);
int (*sync)(struct omap_dss_device *dssdev);
int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
int (*get_te)(struct omap_dss_device *dssdev);
u8 (*get_rotate)(struct omap_dss_device *dssdev);
int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate);
bool (*get_mirror)(struct omap_dss_device *dssdev);
int (*set_mirror)(struct omap_dss_device *dssdev, bool enable);
int (*memory_read)(struct omap_dss_device *dssdev,
void *buf, size_t size,
u16 x, u16 y, u16 w, u16 h);
void (*get_resolution)(struct omap_dss_device *dssdev,
u16 *xres, u16 *yres);
void (*get_dimensions)(struct omap_dss_device *dssdev,
u32 *width, u32 *height);
int (*get_recommended_bpp)(struct omap_dss_device *dssdev);
int (*check_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*set_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void (*get_timings)(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
int (*set_wss)(struct omap_dss_device *dssdev, u32 wss);
u32 (*get_wss)(struct omap_dss_device *dssdev);
int (*read_edid)(struct omap_dss_device *dssdev, u8 *buf, int len);
bool (*detect)(struct omap_dss_device *dssdev);
OMAPDSS: Provide an interface for audio support There exist several display technologies and standards that support audio as well. Hence, it is relevant to update the DSS device driver to provide an audio interface that may be used by an audio driver or any other driver interested in the functionality. The audio_enable function is intended to prepare the relevant IP for playback (e.g., enabling an audio FIFO, taking in/out of reset some IP, enabling companion chips, etc). It is intended to be called before audio_start. The audio_disable function performs the reverse operation and is intended to be called after audio_stop. While a given DSS device driver may support audio, it is possible that for certain configurations audio is not supported (e.g., an HDMI display using a VESA video timing). The audio_supported function is intended to query whether the current configuration of the display supports audio. The audio_config function is intended to configure all the relevant audio parameters of the display. In order to make the function independent of any specific DSS device driver, a struct omap_dss_audio is defined. Its purpose is to contain all the required parameters for audio configuration. At the moment, such structure contains pointers to IEC-60958 channel status word and CEA-861 audio infoframe structures. This should be enough to support HDMI and DisplayPort, as both are based on CEA-861 and IEC-60958. The omap_dss_audio structure may be extended in the future if required. The audio_enable/disable, audio_config and audio_supported functions could be implemented as functions that may sleep. Hence, they should not be called while holding a spinlock or a readlock. The audio_start/audio_stop function is intended to effectively start/stop audio playback after the configuration has taken place. These functions are designed to be used in an atomic context. Hence, audio_start should return quickly and be called only after all the needed resources for audio playback (audio FIFOs, DMA channels, companion chips, etc) have been enabled to begin data transfers. audio_stop is designed to only stop the audio transfers. The resources used for playback are released using audio_disable. A new enum omap_dss_audio_state is introduced to help the implementations of the interface to keep track of the audio state. The initial state is _DISABLED; then, the state transitions to _CONFIGURED, and then, when it is ready to play audio, to _ENABLED. The state _PLAYING is used when the audio is being rendered. Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
2012-03-07 01:20:37 +01:00
/*
* For display drivers that support audio. This encompasses
* HDMI and DisplayPort at the moment.
*/
/*
* Note: These functions might sleep. Do not call while
* holding a spinlock/readlock.
*/
int (*audio_enable)(struct omap_dss_device *dssdev);
void (*audio_disable)(struct omap_dss_device *dssdev);
bool (*audio_supported)(struct omap_dss_device *dssdev);
int (*audio_config)(struct omap_dss_device *dssdev,
struct omap_dss_audio *audio);
/* Note: These functions may not sleep */
int (*audio_start)(struct omap_dss_device *dssdev);
void (*audio_stop)(struct omap_dss_device *dssdev);
};
enum omapdss_version omapdss_get_version(void);
bool omapdss_is_initialized(void);
int omap_dss_register_driver(struct omap_dss_driver *);
void omap_dss_unregister_driver(struct omap_dss_driver *);
int omapdss_register_display(struct omap_dss_device *dssdev);
void omapdss_unregister_display(struct omap_dss_device *dssdev);
struct omap_dss_device *omap_dss_get_device(struct omap_dss_device *dssdev);
void omap_dss_put_device(struct omap_dss_device *dssdev);
#define for_each_dss_dev(d) while ((d = omap_dss_get_next_device(d)) != NULL)
struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from);
struct omap_dss_device *omap_dss_find_device(void *data,
int (*match)(struct omap_dss_device *dssdev, void *data));
const char *omapdss_get_default_display_name(void);
void videomode_to_omap_video_timings(const struct videomode *vm,
struct omap_video_timings *ovt);
void omap_video_timings_to_videomode(const struct omap_video_timings *ovt,
struct videomode *vm);
int dss_feat_get_num_mgrs(void);
int dss_feat_get_num_ovls(void);
enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel);
enum omap_dss_output_id dss_feat_get_supported_outputs(enum omap_channel channel);
enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane);
int omap_dss_get_num_overlay_managers(void);
struct omap_overlay_manager *omap_dss_get_overlay_manager(int num);
int omap_dss_get_num_overlays(void);
struct omap_overlay *omap_dss_get_overlay(int num);
int omapdss_register_output(struct omap_dss_device *output);
void omapdss_unregister_output(struct omap_dss_device *output);
struct omap_dss_device *omap_dss_get_output(enum omap_dss_output_id id);
struct omap_dss_device *omap_dss_find_output(const char *name);
struct omap_dss_device *omap_dss_find_output_by_node(struct device_node *node);
int omapdss_output_set_device(struct omap_dss_device *out,
struct omap_dss_device *dssdev);
int omapdss_output_unset_device(struct omap_dss_device *out);
OMAPDSS: outputs: Create a new entity called outputs The current OMAPDSS design contains 3 software entities: Overlays, Managers and Devices. These map to pipelines, overlay managers and the panels respectively in hardware. One or more overlays connect to a manager to represent a composition, the manager connects to a device(generally a display) to display the content. The part of DSS hardware which isn't represented by any of the above entities are interfaces/outputs that connect to an overlay manager, i.e blocks like DSI, HDMI, VENC and so on. Currently, an overlay manager directly connects to the display, and the output to which it is actually connected is ignored. The panel driver of the display is responsible of calling output specific functions to configure the output. Adding outputs as a new software entity gives us the following benefits: - Have exact information on the possible connections between managers and outputs: A manager can't connect to each and every output, there only limited hardware links between a manager's video port and some of the outputs. - Remove hacks related to connecting managers and devices: Currently, default links between managers and devices are set in a not so clean way. Matching is done via comparing the device type, and the display types supported by the manager. This isn't sufficient to establish all the possible links between managers, outputs and devices in hardware. - Make panel drivers more generic: The DSS panel drivers currently call interface/output specific functions to configure the hardware IP. When making these calls, the driver isn't actually aware of the underlying output. The output driver extracts information from the panel's omap_dss_device pointer to figure out which interface it is connected to, and then configures the corresponding output block. An example of this is when a DSI panel calls dsi functions, the dsi driver figures out whether the panel is connected to DSI1 or DSI2. This isn't correct, and having output as entities will give the panel driver the exact information on which output to configure. Having outputs also gives the opportunity to make panel drivers generic across different platforms/SoCs, this is achieved as omap specific output calls can be replaced by ops of a particular output type. - Have more complex connections between managers, outputs and devices: OMAPDSS currently doesn't support use cases like 2 outputs connect to a single device. This can be achieved by extending properties of outputs to connect to more managers or devices. - Represent writeback as an output: The writeback pipeline fits well in OMAPDSS as compared to overlays, managers or devices. Add a new struct to represent outputs. An output struct holds pointers to the manager and device structs to which it is connected. Add functions which can register/unregister an output, or look for one. Create an enum which represent each output instance. Signed-off-by: Archit Taneja <archit@ti.com>
2012-09-07 14:08:00 +02:00
struct omap_dss_device *omapdss_find_output_from_display(struct omap_dss_device *dssdev);
struct omap_overlay_manager *omapdss_find_mgr_from_display(struct omap_dss_device *dssdev);
void omapdss_default_get_resolution(struct omap_dss_device *dssdev,
u16 *xres, u16 *yres);
int omapdss_default_get_recommended_bpp(struct omap_dss_device *dssdev);
void omapdss_default_get_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
u32 dispc_read_irqstatus(void);
void dispc_clear_irqstatus(u32 mask);
u32 dispc_read_irqenable(void);
void dispc_write_irqenable(u32 mask);
int dispc_request_irq(irq_handler_t handler, void *dev_id);
void dispc_free_irq(void *dev_id);
int dispc_runtime_get(void);
void dispc_runtime_put(void);
void dispc_mgr_enable(enum omap_channel channel, bool enable);
bool dispc_mgr_is_enabled(enum omap_channel channel);
u32 dispc_mgr_get_vsync_irq(enum omap_channel channel);
u32 dispc_mgr_get_framedone_irq(enum omap_channel channel);
u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel);
bool dispc_mgr_go_busy(enum omap_channel channel);
void dispc_mgr_go(enum omap_channel channel);
void dispc_mgr_set_lcd_config(enum omap_channel channel,
const struct dss_lcd_mgr_config *config);
void dispc_mgr_set_timings(enum omap_channel channel,
const struct omap_video_timings *timings);
void dispc_mgr_setup(enum omap_channel channel,
const struct omap_overlay_manager_info *info);
int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
const struct omap_overlay_info *oi,
const struct omap_video_timings *timings,
int *x_predecim, int *y_predecim);
int dispc_ovl_enable(enum omap_plane plane, bool enable);
bool dispc_ovl_enabled(enum omap_plane plane);
void dispc_ovl_set_channel_out(enum omap_plane plane,
enum omap_channel channel);
int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
bool replication, const struct omap_video_timings *mgr_timings,
bool mem_to_mem);
#define to_dss_driver(x) container_of((x), struct omap_dss_driver, driver)
OMAPDSS: Add panel dev pointer to dssdev We are about to remove the dss bus support, which also means that the omap_dss_device won't be a real device anymore. This means that the embedded "dev" struct needs to be removed from omap_dss_device. After we've finished the removal of the dss bus, we see the following changes: - struct omap_dss_device won't be a real Linux device anymore, but more like a "display entity". - struct omap_dss_driver won't be a Linux device driver, but "display entity ops". - The panel devices/drivers won't be omapdss devices/drivers, but platform/i2c/spi/etc devices/drivers, whichever fits the control mechanism of the panel. - The panel drivers will create omap_dss_device and omap_dss_driver, fill the required fields, and register the omap_dss_device to omapdss. - omap_dss_device won't have an embedded dev struct anymore, but a dev pointer to the actual device that manages the omap_dss_device. The model described above resembles the model that has been discussed with CDF (common display framework). For the duration of the conversion, we temporarily have two devs in the dssdev, the old "old_dev", which is a full embedded device struct, and the new "dev", which is a pointer to the device. "old_dev" will be removed in the future. For devices belonging to dss bus the dev is initialized to point to old_dev. This way all the code can just use the dev, for both old and new style panels. Both the new and old style panel drivers work during the conversion, and only after the dss bus support is removed will the old style panels stop to compile. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-02-14 13:17:28 +01:00
#define to_dss_device(x) container_of((x), struct omap_dss_device, old_dev)
void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel,
bool enable);
int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable);
int omapdss_dsi_set_config(struct omap_dss_device *dssdev,
const struct omap_dss_dsi_config *config);
int omap_dsi_update(struct omap_dss_device *dssdev, int channel,
void (*callback)(int, void *), void *data);
int omap_dsi_request_vc(struct omap_dss_device *dssdev, int *channel);
int omap_dsi_set_vc_id(struct omap_dss_device *dssdev, int channel, int vc_id);
void omap_dsi_release_vc(struct omap_dss_device *dssdev, int channel);
int omapdss_dsi_configure_pins(struct omap_dss_device *dssdev,
const struct omap_dsi_pin_config *pin_cfg);
int omapdss_dsi_display_enable(struct omap_dss_device *dssdev);
void omapdss_dsi_display_disable(struct omap_dss_device *dssdev,
bool disconnect_lanes, bool enter_ulps);
int omapdss_dpi_display_enable(struct omap_dss_device *dssdev);
void omapdss_dpi_display_disable(struct omap_dss_device *dssdev);
void omapdss_dpi_set_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
int dpi_check_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void omapdss_dpi_set_data_lines(struct omap_dss_device *dssdev, int data_lines);
int omapdss_sdi_display_enable(struct omap_dss_device *dssdev);
void omapdss_sdi_display_disable(struct omap_dss_device *dssdev);
void omapdss_sdi_set_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings);
void omapdss_sdi_set_datapairs(struct omap_dss_device *dssdev, int datapairs);
int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev);
void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev);
int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *),
void *data);
int omap_rfbi_configure(struct omap_dss_device *dssdev);
void omapdss_rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h);
void omapdss_rfbi_set_pixel_size(struct omap_dss_device *dssdev,
int pixel_size);
void omapdss_rfbi_set_data_lines(struct omap_dss_device *dssdev,
int data_lines);
void omapdss_rfbi_set_interface_timings(struct omap_dss_device *dssdev,
struct rfbi_timings *timings);
int omapdss_compat_init(void);
void omapdss_compat_uninit(void);
struct dss_mgr_ops {
OMAPDSS: Implement display (dis)connect support We currently have two steps in panel initialization and startup: probing and enabling. After the panel has been probed, it's ready and can be configured and later enabled. This model is not enough with more complex display pipelines, where we may have, for example, two panels, of which only one can be used at a time, connected to the same video output. To support that kind of scenarios, we need to add new step to the initialization: connect. This patch adds support for connecting and disconnecting panels. After probe, but before connect, no panel ops should be called. When the connect is called, a proper video pipeline is established, and the panel is ready for use. If some part in the video pipeline is already connected (by some other panel), the connect call fails. One key difference with the old style setup is that connect() handles also connecting to the overlay manager. This means that the omapfb (or omapdrm) no longer needs to figure out which overlay manager to use, but it can just call connect() on the panel, and the proper overlay manager is connected by omapdss. This also allows us to add back the support for dynamic switching between two exclusive panels. However, the current panel device model is not changed to support this, as the new device model is implemented in the following patches and the old model will be removed. The new device model supports dynamic switching. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-05-08 15:23:32 +02:00
int (*connect)(struct omap_overlay_manager *mgr,
struct omap_dss_device *dst);
OMAPDSS: Implement display (dis)connect support We currently have two steps in panel initialization and startup: probing and enabling. After the panel has been probed, it's ready and can be configured and later enabled. This model is not enough with more complex display pipelines, where we may have, for example, two panels, of which only one can be used at a time, connected to the same video output. To support that kind of scenarios, we need to add new step to the initialization: connect. This patch adds support for connecting and disconnecting panels. After probe, but before connect, no panel ops should be called. When the connect is called, a proper video pipeline is established, and the panel is ready for use. If some part in the video pipeline is already connected (by some other panel), the connect call fails. One key difference with the old style setup is that connect() handles also connecting to the overlay manager. This means that the omapfb (or omapdrm) no longer needs to figure out which overlay manager to use, but it can just call connect() on the panel, and the proper overlay manager is connected by omapdss. This also allows us to add back the support for dynamic switching between two exclusive panels. However, the current panel device model is not changed to support this, as the new device model is implemented in the following patches and the old model will be removed. The new device model supports dynamic switching. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-05-08 15:23:32 +02:00
void (*disconnect)(struct omap_overlay_manager *mgr,
struct omap_dss_device *dst);
OMAPDSS: Implement display (dis)connect support We currently have two steps in panel initialization and startup: probing and enabling. After the panel has been probed, it's ready and can be configured and later enabled. This model is not enough with more complex display pipelines, where we may have, for example, two panels, of which only one can be used at a time, connected to the same video output. To support that kind of scenarios, we need to add new step to the initialization: connect. This patch adds support for connecting and disconnecting panels. After probe, but before connect, no panel ops should be called. When the connect is called, a proper video pipeline is established, and the panel is ready for use. If some part in the video pipeline is already connected (by some other panel), the connect call fails. One key difference with the old style setup is that connect() handles also connecting to the overlay manager. This means that the omapfb (or omapdrm) no longer needs to figure out which overlay manager to use, but it can just call connect() on the panel, and the proper overlay manager is connected by omapdss. This also allows us to add back the support for dynamic switching between two exclusive panels. However, the current panel device model is not changed to support this, as the new device model is implemented in the following patches and the old model will be removed. The new device model supports dynamic switching. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-05-08 15:23:32 +02:00
void (*start_update)(struct omap_overlay_manager *mgr);
int (*enable)(struct omap_overlay_manager *mgr);
void (*disable)(struct omap_overlay_manager *mgr);
void (*set_timings)(struct omap_overlay_manager *mgr,
const struct omap_video_timings *timings);
void (*set_lcd_config)(struct omap_overlay_manager *mgr,
const struct dss_lcd_mgr_config *config);
int (*register_framedone_handler)(struct omap_overlay_manager *mgr,
void (*handler)(void *), void *data);
void (*unregister_framedone_handler)(struct omap_overlay_manager *mgr,
void (*handler)(void *), void *data);
};
int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops);
void dss_uninstall_mgr_ops(void);
OMAPDSS: Implement display (dis)connect support We currently have two steps in panel initialization and startup: probing and enabling. After the panel has been probed, it's ready and can be configured and later enabled. This model is not enough with more complex display pipelines, where we may have, for example, two panels, of which only one can be used at a time, connected to the same video output. To support that kind of scenarios, we need to add new step to the initialization: connect. This patch adds support for connecting and disconnecting panels. After probe, but before connect, no panel ops should be called. When the connect is called, a proper video pipeline is established, and the panel is ready for use. If some part in the video pipeline is already connected (by some other panel), the connect call fails. One key difference with the old style setup is that connect() handles also connecting to the overlay manager. This means that the omapfb (or omapdrm) no longer needs to figure out which overlay manager to use, but it can just call connect() on the panel, and the proper overlay manager is connected by omapdss. This also allows us to add back the support for dynamic switching between two exclusive panels. However, the current panel device model is not changed to support this, as the new device model is implemented in the following patches and the old model will be removed. The new device model supports dynamic switching. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-05-08 15:23:32 +02:00
int dss_mgr_connect(struct omap_overlay_manager *mgr,
struct omap_dss_device *dst);
OMAPDSS: Implement display (dis)connect support We currently have two steps in panel initialization and startup: probing and enabling. After the panel has been probed, it's ready and can be configured and later enabled. This model is not enough with more complex display pipelines, where we may have, for example, two panels, of which only one can be used at a time, connected to the same video output. To support that kind of scenarios, we need to add new step to the initialization: connect. This patch adds support for connecting and disconnecting panels. After probe, but before connect, no panel ops should be called. When the connect is called, a proper video pipeline is established, and the panel is ready for use. If some part in the video pipeline is already connected (by some other panel), the connect call fails. One key difference with the old style setup is that connect() handles also connecting to the overlay manager. This means that the omapfb (or omapdrm) no longer needs to figure out which overlay manager to use, but it can just call connect() on the panel, and the proper overlay manager is connected by omapdss. This also allows us to add back the support for dynamic switching between two exclusive panels. However, the current panel device model is not changed to support this, as the new device model is implemented in the following patches and the old model will be removed. The new device model supports dynamic switching. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-05-08 15:23:32 +02:00
void dss_mgr_disconnect(struct omap_overlay_manager *mgr,
struct omap_dss_device *dst);
void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
const struct omap_video_timings *timings);
void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
const struct dss_lcd_mgr_config *config);
int dss_mgr_enable(struct omap_overlay_manager *mgr);
void dss_mgr_disable(struct omap_overlay_manager *mgr);
void dss_mgr_start_update(struct omap_overlay_manager *mgr);
int dss_mgr_register_framedone_handler(struct omap_overlay_manager *mgr,
void (*handler)(void *), void *data);
void dss_mgr_unregister_framedone_handler(struct omap_overlay_manager *mgr,
void (*handler)(void *), void *data);
OMAPDSS: Implement display (dis)connect support We currently have two steps in panel initialization and startup: probing and enabling. After the panel has been probed, it's ready and can be configured and later enabled. This model is not enough with more complex display pipelines, where we may have, for example, two panels, of which only one can be used at a time, connected to the same video output. To support that kind of scenarios, we need to add new step to the initialization: connect. This patch adds support for connecting and disconnecting panels. After probe, but before connect, no panel ops should be called. When the connect is called, a proper video pipeline is established, and the panel is ready for use. If some part in the video pipeline is already connected (by some other panel), the connect call fails. One key difference with the old style setup is that connect() handles also connecting to the overlay manager. This means that the omapfb (or omapdrm) no longer needs to figure out which overlay manager to use, but it can just call connect() on the panel, and the proper overlay manager is connected by omapdss. This also allows us to add back the support for dynamic switching between two exclusive panels. However, the current panel device model is not changed to support this, as the new device model is implemented in the following patches and the old model will be removed. The new device model supports dynamic switching. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2013-05-08 15:23:32 +02:00
static inline bool omapdss_device_is_connected(struct omap_dss_device *dssdev)
{
return dssdev->output;
}
static inline bool omapdss_device_is_enabled(struct omap_dss_device *dssdev)
{
return dssdev->state == OMAP_DSS_DISPLAY_ACTIVE;
}
#endif