Release 4.11 drivers/gpu/drm/omapdrm/dss/dss.h
/*
* linux/drivers/video/omap2/dss/dss.h
*
* Copyright (C) 2009 Nokia Corporation
* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
*
* Some code and ideas taken from drivers/video/omap/ driver
* by Imre Deak.
*
* 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 __OMAP2_DSS_H
#define __OMAP2_DSS_H
#include <linux/interrupt.h>
#include "omapdss.h"
#ifdef pr_fmt
#undef pr_fmt
#endif
#ifdef DSS_SUBSYS_NAME
#define pr_fmt(fmt) DSS_SUBSYS_NAME ": " fmt
#else
#define pr_fmt(fmt) fmt
#endif
#define DSSDBG(format, ...) \
pr_debug(format, ## __VA_ARGS__)
#ifdef DSS_SUBSYS_NAME
#define DSSERR(format, ...) \
printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \
## __VA_ARGS__)
#else
#define DSSERR(format, ...) \
printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__)
#endif
#ifdef DSS_SUBSYS_NAME
#define DSSINFO(format, ...) \
printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \
## __VA_ARGS__)
#else
#define DSSINFO(format, ...) \
printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__)
#endif
#ifdef DSS_SUBSYS_NAME
#define DSSWARN(format, ...) \
printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \
## __VA_ARGS__)
#else
#define DSSWARN(format, ...) \
printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__)
#endif
/* OMAP TRM gives bitfields as start:end, where start is the higher bit
number. For example 7:0 */
#define FLD_MASK(start, end) (((1 << ((start) - (end) + 1)) - 1) << (end))
#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end))
#define FLD_MOD(orig, val, start, end) \
(((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))
enum dss_io_pad_mode {
DSS_IO_PAD_MODE_RESET,
DSS_IO_PAD_MODE_RFBI,
DSS_IO_PAD_MODE_BYPASS,
};
enum dss_hdmi_venc_clk_source_select {
DSS_VENC_TV_CLK = 0,
DSS_HDMI_M_PCLK = 1,
};
enum dss_dsi_content_type {
DSS_DSI_CONTENT_DCS,
DSS_DSI_CONTENT_GENERIC,
};
enum dss_writeback_channel {
DSS_WB_LCD1_MGR = 0,
DSS_WB_LCD2_MGR = 1,
DSS_WB_TV_MGR = 2,
DSS_WB_OVL0 = 3,
DSS_WB_OVL1 = 4,
DSS_WB_OVL2 = 5,
DSS_WB_OVL3 = 6,
DSS_WB_LCD3_MGR = 7,
};
enum dss_clk_source {
DSS_CLK_SRC_FCK = 0,
DSS_CLK_SRC_PLL1_1,
DSS_CLK_SRC_PLL1_2,
DSS_CLK_SRC_PLL1_3,
DSS_CLK_SRC_PLL2_1,
DSS_CLK_SRC_PLL2_2,
DSS_CLK_SRC_PLL2_3,
DSS_CLK_SRC_HDMI_PLL,
};
enum dss_pll_id {
DSS_PLL_DSI1,
DSS_PLL_DSI2,
DSS_PLL_HDMI,
DSS_PLL_VIDEO1,
DSS_PLL_VIDEO2,
};
struct dss_pll;
#define DSS_PLL_MAX_HSDIVS 4
enum dss_pll_type {
DSS_PLL_TYPE_A,
DSS_PLL_TYPE_B,
};
/*
* Type-A PLLs: clkout[]/mX[] refer to hsdiv outputs m4, m5, m6, m7.
* Type-B PLLs: clkout[0] refers to m2.
*/
struct dss_pll_clock_info {
/* rates that we get with dividers below */
unsigned long fint;
unsigned long clkdco;
unsigned long clkout[DSS_PLL_MAX_HSDIVS];
/* dividers */
u16 n;
u16 m;
u32 mf;
u16 mX[DSS_PLL_MAX_HSDIVS];
u16 sd;
};
struct dss_pll_ops {
int (*enable)(struct dss_pll *pll);
void (*disable)(struct dss_pll *pll);
int (*set_config)(struct dss_pll *pll,
const struct dss_pll_clock_info *cinfo);
};
struct dss_pll_hw {
enum dss_pll_type type;
unsigned n_max;
unsigned m_min;
unsigned m_max;
unsigned mX_max;
unsigned long fint_min, fint_max;
unsigned long clkdco_min, clkdco_low, clkdco_max;
u8 n_msb, n_lsb;
u8 m_msb, m_lsb;
u8 mX_msb[DSS_PLL_MAX_HSDIVS], mX_lsb[DSS_PLL_MAX_HSDIVS];
bool has_stopmode;
bool has_freqsel;
bool has_selfreqdco;
bool has_refsel;
};
struct dss_pll {
const char *name;
enum dss_pll_id id;
struct clk *clkin;
struct regulator *regulator;
void __iomem *base;
const struct dss_pll_hw *hw;
const struct dss_pll_ops *ops;
struct dss_pll_clock_info cinfo;
};
struct dispc_clock_info {
/* rates that we get with dividers below */
unsigned long lck;
unsigned long pck;
/* dividers */
u16 lck_div;
u16 pck_div;
};
struct dss_lcd_mgr_config {
enum dss_io_pad_mode io_pad_mode;
bool stallmode;
bool fifohandcheck;
struct dispc_clock_info clock_info;
int video_port_width;
int lcden_sig_polarity;
};
struct seq_file;
struct platform_device;
/* core */
struct platform_device *dss_get_core_pdev(void);
int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask);
void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask);
int dss_set_min_bus_tput(struct device *dev, unsigned long tput);
int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *));
static inline bool dss_mgr_is_lcd(enum omap_channel id)
{
if (id == OMAP_DSS_CHANNEL_LCD || id == OMAP_DSS_CHANNEL_LCD2 ||
id == OMAP_DSS_CHANNEL_LCD3)
return true;
else
return false;
}
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/* DSS */
int dss_init_platform_driver(void) __init;
void dss_uninit_platform_driver(void);
int dss_runtime_get(void);
void dss_runtime_put(void);
unsigned long dss_get_dispc_clk_rate(void);
int dss_dpi_select_source(int port, enum omap_channel channel);
void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
const char *dss_get_clk_source_name(enum dss_clk_source clk_src);
void dss_dump_clocks(struct seq_file *s);
/* DSS VIDEO PLL */
struct dss_pll *dss_video_pll_init(struct platform_device *pdev, int id,
struct regulator *regulator);
void dss_video_pll_uninit(struct dss_pll *pll);
/* dss-of */
struct device_node *dss_of_port_get_parent_device(struct device_node *port);
u32 dss_of_port_get_port_number(struct device_node *port);
#if defined(CONFIG_OMAP2_DSS_DEBUGFS)
void dss_debug_dump_clocks(struct seq_file *s);
#endif
void dss_ctrl_pll_enable(enum dss_pll_id pll_id, bool enable);
void dss_sdi_init(int datapairs);
int dss_sdi_enable(void);
void dss_sdi_disable(void);
void dss_select_dsi_clk_source(int dsi_module,
enum dss_clk_source clk_src);
void dss_select_lcd_clk_source(enum omap_channel channel,
enum dss_clk_source clk_src);
enum dss_clk_source dss_get_dispc_clk_source(void);
enum dss_clk_source dss_get_dsi_clk_source(int dsi_module);
enum dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel);
void dss_set_venc_output(enum omap_dss_venc_type type);
void dss_set_dac_pwrdn_bgz(bool enable);
int dss_set_fck_rate(unsigned long rate);
typedef bool (*dss_div_calc_func)(unsigned long fck, void *data);
bool dss_div_calc(unsigned long pck, unsigned long fck_min,
dss_div_calc_func func, void *data);
/* SDI */
int sdi_init_platform_driver(void) __init;
void sdi_uninit_platform_driver(void);
#ifdef CONFIG_OMAP2_DSS_SDI
int sdi_init_port(struct platform_device *pdev, struct device_node *port);
void sdi_uninit_port(struct device_node *port);
#else
static inline int sdi_init_port(struct platform_device *pdev,
struct device_node *port)
{
return 0;
}
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static inline void sdi_uninit_port(struct device_node *port)
{
}
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#endif
/* DSI */
#ifdef CONFIG_OMAP2_DSS_DSI
struct dentry;
struct file_operations;
int dsi_init_platform_driver(void) __init;
void dsi_uninit_platform_driver(void);
void dsi_dump_clocks(struct seq_file *s);
void dsi_irq_handler(void);
u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt);
#else
static inline u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)
{
WARN(1, "%s: DSI not compiled in, returning pixel_size as 0\n",
__func__);
return 0;
}
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#endif
/* DPI */
int dpi_init_platform_driver(void) __init;
void dpi_uninit_platform_driver(void);
#ifdef CONFIG_OMAP2_DSS_DPI
int dpi_init_port(struct platform_device *pdev, struct device_node *port);
void dpi_uninit_port(struct device_node *port);
#else
static inline int dpi_init_port(struct platform_device *pdev,
struct device_node *port)
{
return 0;
}
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static inline void dpi_uninit_port(struct device_node *port)
{
}
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#endif
/* DISPC */
int dispc_init_platform_driver(void) __init;
void dispc_uninit_platform_driver(void);
void dispc_dump_clocks(struct seq_file *s);
void dispc_enable_sidle(void);
void dispc_disable_sidle(void);
void dispc_lcd_enable_signal(bool enable);
void dispc_pck_free_enable(bool enable);
void dispc_enable_fifomerge(bool enable);
void dispc_enable_gamma_table(bool enable);
typedef bool (*dispc_div_calc_func)(int lckd, int pckd, unsigned long lck,
unsigned long pck, void *data);
bool dispc_div_calc(unsigned long dispc,
unsigned long pck_min, unsigned long pck_max,
dispc_div_calc_func func, void *data);
bool dispc_mgr_timings_ok(enum omap_channel channel, const struct videomode *vm);
int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
struct dispc_clock_info *cinfo);
void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane,
u32 *fifo_low, u32 *fifo_high, bool use_fifomerge,
bool manual_update);
void dispc_mgr_set_clock_div(enum omap_channel channel,
const struct dispc_clock_info *cinfo);
int dispc_mgr_get_clock_div(enum omap_channel channel,
struct dispc_clock_info *cinfo);
void dispc_set_tv_pclk(unsigned long pclk);
u32 dispc_wb_get_framedone_irq(void);
bool dispc_wb_go_busy(void);
void dispc_wb_go(void);
void dispc_wb_enable(bool enable);
bool dispc_wb_is_enabled(void);
void dispc_wb_set_channel_in(enum dss_writeback_channel channel);
int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
bool mem_to_mem, const struct videomode *vm);
/* VENC */
int venc_init_platform_driver(void) __init;
void venc_uninit_platform_driver(void);
/* HDMI */
int hdmi4_init_platform_driver(void) __init;
void hdmi4_uninit_platform_driver(void);
int hdmi5_init_platform_driver(void) __init;
void hdmi5_uninit_platform_driver(void);
/* RFBI */
int rfbi_init_platform_driver(void) __init;
void rfbi_uninit_platform_driver(void);
#ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)
{
int b;
for (b = 0; b < 32; ++b) {
if (irqstatus & (1 << b))
irq_arr[b]++;
}
}
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#endif
/* PLL */
typedef bool (*dss_pll_calc_func)(int n, int m, unsigned long fint,
unsigned long clkdco, void *data);
typedef bool (*dss_hsdiv_calc_func)(int m_dispc, unsigned long dispc,
void *data);
int dss_pll_register(struct dss_pll *pll);
void dss_pll_unregister(struct dss_pll *pll);
struct dss_pll *dss_pll_find(const char *name);
struct dss_pll *dss_pll_find_by_src(enum dss_clk_source src);
unsigned dss_pll_get_clkout_idx_for_src(enum dss_clk_source src);
int dss_pll_enable(struct dss_pll *pll);
void dss_pll_disable(struct dss_pll *pll);
int dss_pll_set_config(struct dss_pll *pll,
const struct dss_pll_clock_info *cinfo);
bool dss_pll_hsdiv_calc_a(const struct dss_pll *pll, unsigned long clkdco,
unsigned long out_min, unsigned long out_max,
dss_hsdiv_calc_func func, void *data);
bool dss_pll_calc_a(const struct dss_pll *pll, unsigned long clkin,
unsigned long pll_min, unsigned long pll_max,
dss_pll_calc_func func, void *data);
bool dss_pll_calc_b(const struct dss_pll *pll, unsigned long clkin,
unsigned long target_clkout, struct dss_pll_clock_info *cinfo);
int dss_pll_write_config_type_a(struct dss_pll *pll,
const struct dss_pll_clock_info *cinfo);
int dss_pll_write_config_type_b(struct dss_pll *pll,
const struct dss_pll_clock_info *cinfo);
int dss_pll_wait_reset_done(struct dss_pll *pll);
#endif
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