diff options
| author | Simon Glass <sjg@chromium.org> | 2017-04-05 16:23:40 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-05-09 20:20:39 -0400 |
| commit | 2e4170b63bf05afe55a706dfc14c50ff1c6aa305 (patch) | |
| tree | 6346d107a18f3836807031cc36c57c80646924c7 /arch/arm | |
| parent | 25877d4e4c45451c5398aec3de50e0d5befe0e9f (diff) | |
video: arm: rpi: Move the video query out of the driver
Add a function to get the video size to the msg handler and remove it from
the video driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-bcm283x/include/mach/msg.h | 9 | ||||
| -rw-r--r-- | arch/arm/mach-bcm283x/msg.c | 26 |
2 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-bcm283x/include/mach/msg.h b/arch/arm/mach-bcm283x/include/mach/msg.h index 8fd4ace124..c785c43a67 100644 --- a/arch/arm/mach-bcm283x/include/mach/msg.h +++ b/arch/arm/mach-bcm283x/include/mach/msg.h @@ -22,4 +22,13 @@ int bcm2835_power_on_module(u32 module); */ int bcm2835_get_mmc_clock(void); +/** + * bcm2835_get_video_size() - get the current display size + * + * @widthp: Returns the width in pixels + * @heightp: Returns the height in pixels + * @return 0 if OK, -ve on error + */ +int bcm2835_get_video_size(int *widthp, int *heightp); + #endif diff --git a/arch/arm/mach-bcm283x/msg.c b/arch/arm/mach-bcm283x/msg.c index facb916711..17266c01a6 100644 --- a/arch/arm/mach-bcm283x/msg.c +++ b/arch/arm/mach-bcm283x/msg.c @@ -6,6 +6,7 @@ #include <common.h> #include <memalign.h> +#include <phys2bus.h> #include <asm/arch/mbox.h> struct msg_set_power_state { @@ -20,6 +21,12 @@ struct msg_get_clock_rate { u32 end_tag; }; +struct msg_query { + struct bcm2835_mbox_hdr hdr; + struct bcm2835_mbox_tag_physical_w_h physical_w_h; + u32 end_tag; +}; + int bcm2835_power_on_module(u32 module) { ALLOC_CACHE_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1); @@ -65,3 +72,22 @@ int bcm2835_get_mmc_clock(void) return msg_clk->get_clock_rate.body.resp.rate_hz; } + +int bcm2835_get_video_size(int *widthp, int *heightp) +{ + ALLOC_CACHE_ALIGN_BUFFER(struct msg_query, msg_query, 1); + int ret; + + BCM2835_MBOX_INIT_HDR(msg_query); + BCM2835_MBOX_INIT_TAG_NO_REQ(&msg_query->physical_w_h, + GET_PHYSICAL_W_H); + ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_query->hdr); + if (ret) { + printf("bcm2835: Could not query display resolution\n"); + return ret; + } + *widthp = msg_query->physical_w_h.body.resp.width; + *heightp = msg_query->physical_w_h.body.resp.height; + + return 0; +} |