diff options
Diffstat (limited to 'drivers/video/bcm2835.c')
| -rw-r--r-- | drivers/video/bcm2835.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/video/bcm2835.c b/drivers/video/bcm2835.c index 58a6163..1f18231 100644 --- a/drivers/video/bcm2835.c +++ b/drivers/video/bcm2835.c @@ -14,6 +14,8 @@ DECLARE_GLOBAL_DATA_PTR; /* Global variables that lcd.c expects to exist */ vidinfo_t panel_info; +static u32 bcm2835_pitch; + struct msg_query { struct bcm2835_mbox_hdr hdr; struct bcm2835_mbox_tag_physical_w_h physical_w_h; @@ -30,6 +32,7 @@ struct msg_setup { struct bcm2835_mbox_tag_virtual_offset virtual_offset; struct bcm2835_mbox_tag_overscan overscan; struct bcm2835_mbox_tag_allocate_buffer allocate_buffer; + struct bcm2835_mbox_tag_pitch pitch; u32 end_tag; }; @@ -80,6 +83,7 @@ void lcd_ctrl_init(void *lcdbase) msg_setup->overscan.body.req.right = 0; BCM2835_MBOX_INIT_TAG(&msg_setup->allocate_buffer, ALLOCATE_BUFFER); msg_setup->allocate_buffer.body.req.alignment = 0x100; + BCM2835_MBOX_INIT_TAG_NO_REQ(&msg_setup->pitch, GET_PITCH); ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_setup->hdr); if (ret) { @@ -90,6 +94,7 @@ void lcd_ctrl_init(void *lcdbase) w = msg_setup->physical_w_h.body.resp.width; h = msg_setup->physical_w_h.body.resp.height; + bcm2835_pitch = msg_setup->pitch.body.resp.pitch; debug("bcm2835: Final resolution is %d x %d\n", w, h); @@ -103,3 +108,9 @@ void lcd_ctrl_init(void *lcdbase) void lcd_enable(void) { } + +int lcd_get_size(int *line_length) +{ + *line_length = bcm2835_pitch; + return *line_length * panel_info.vl_row; +} |