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OMAPDSS: add manager ops

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The output drivers need some operations from the overlay managers, like
enable and set_timings. These will affect the dispc registers, and need
to be synchronized with the composition-side changes with overlays and
overlay managers.

We want to handle these calls in the apply.c in the compatibility mode,
but when in non-compat mode, the calls need to be handled by some other
component (e.g. omapdrm).

To make this possible, this patch creates a set of function pointers in
a dss_mgr_ops struct, that is used to redirect the calls into the
correct destination.

The non-compat users can install their mgr ops with
dss_install_mgr_ops() function.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2012-10-10 10:56:05 +03:00
parent 6abae7a18a
commit 74b65ec245
3 changed files with 87 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/video/omap2/dss/apply.c
View File

@ -781,7 +781,7 @@ static void mgr_clear_shadow_dirty(struct omap_overlay_manager *mgr)
}
}
void dss_mgr_start_update(struct omap_overlay_manager *mgr)
static void dss_mgr_start_update_compat(struct omap_overlay_manager *mgr)
{
struct mgr_priv_data *mp = get_mgr_priv(mgr);
unsigned long flags;
@ -1021,7 +1021,7 @@ static void dss_setup_fifos(void)
}
}
int dss_mgr_enable(struct omap_overlay_manager *mgr)
static int dss_mgr_enable_compat(struct omap_overlay_manager *mgr)
{
struct mgr_priv_data *mp = get_mgr_priv(mgr);
unsigned long flags;
@ -1071,7 +1071,7 @@ err:
return r;
}
void dss_mgr_disable(struct omap_overlay_manager *mgr)
static void dss_mgr_disable_compat(struct omap_overlay_manager *mgr)
{
struct mgr_priv_data *mp = get_mgr_priv(mgr);
unsigned long flags;
@ -1208,7 +1208,7 @@ static void dss_apply_mgr_timings(struct omap_overlay_manager *mgr,
mp->extra_info_dirty = true;
}
void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
static void dss_mgr_set_timings_compat(struct omap_overlay_manager *mgr,
const struct omap_video_timings *timings)
{
unsigned long flags;
@ -1236,7 +1236,7 @@ static void dss_apply_mgr_lcd_config(struct omap_overlay_manager *mgr,
mp->extra_info_dirty = true;
}
void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
static void dss_mgr_set_lcd_config_compat(struct omap_overlay_manager *mgr,
const struct dss_lcd_mgr_config *config)
{
unsigned long flags;
@ -1501,13 +1501,21 @@ err:
return r;
}
static const struct dss_mgr_ops apply_mgr_ops = {
.start_update = dss_mgr_start_update_compat,
.enable = dss_mgr_enable_compat,
.disable = dss_mgr_disable_compat,
.set_timings = dss_mgr_set_timings_compat,
.set_lcd_config = dss_mgr_set_lcd_config_compat,
};
static int compat_refcnt;
static DEFINE_MUTEX(compat_init_lock);
int omapdss_compat_init(void)
{
struct platform_device *pdev = dss_get_core_pdev();
int i;
int i, r;
mutex_lock(&compat_init_lock);
@ -1548,10 +1556,24 @@ int omapdss_compat_init(void)
ovl->get_device = &dss_ovl_get_device;
}
r = dss_install_mgr_ops(&apply_mgr_ops);
if (r)
goto err_mgr_ops;
out:
mutex_unlock(&compat_init_lock);
return 0;
err_mgr_ops:
dss_uninit_overlay_managers(pdev);
dss_uninit_overlays(pdev);
compat_refcnt--;
mutex_unlock(&compat_init_lock);
return r;
}
EXPORT_SYMBOL(omapdss_compat_init);
@ -1564,6 +1586,8 @@ void omapdss_compat_uninit(void)
if (--compat_refcnt > 0)
goto out;
dss_uninstall_mgr_ops();
dss_uninit_overlay_managers(pdev);
dss_uninit_overlays(pdev);
out:

13
drivers/video/omap2/dss/dss.h
View File

@ -523,4 +523,17 @@ static inline void dss_collect_irq_stats(u32 irqstatus, unsigned *irq_arr)
}
#endif
struct dss_mgr_ops {
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 dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops);
void dss_uninstall_mgr_ops(void);
#endif

44
drivers/video/omap2/dss/output.c
View File

@ -113,3 +113,47 @@ struct omap_dss_output *omap_dss_get_output(enum omap_dss_output_id id)
return NULL;
}
static const struct dss_mgr_ops *dss_mgr_ops;
int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops)
{
if (dss_mgr_ops)
return -EBUSY;
dss_mgr_ops = mgr_ops;
return 0;
}
void dss_uninstall_mgr_ops(void)
{
dss_mgr_ops = NULL;
}
void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
const struct omap_video_timings *timings)
{
dss_mgr_ops->set_timings(mgr, timings);
}
void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
const struct dss_lcd_mgr_config *config)
{
dss_mgr_ops->set_lcd_config(mgr, config);
}
int dss_mgr_enable(struct omap_overlay_manager *mgr)
{
return dss_mgr_ops->enable(mgr);
}
void dss_mgr_disable(struct omap_overlay_manager *mgr)
{
dss_mgr_ops->disable(mgr);
}
void dss_mgr_start_update(struct omap_overlay_manager *mgr)
{
dss_mgr_ops->start_update(mgr);
}