From 4072d89852bcc0d69eab31908b0ea7870c6b9e1e Mon Sep 17 00:00:00 2001 From: popcornmix Date: Wed, 12 Feb 2014 12:01:56 +0000 Subject: [PATCH 167/196] bcm2708fb: Allow swapping of red/blue in 24/32 modes --- drivers/video/bcm2708_fb.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/video/bcm2708_fb.c b/drivers/video/bcm2708_fb.c index e8bbcc3..86f07fd 100644 --- a/drivers/video/bcm2708_fb.c +++ b/drivers/video/bcm2708_fb.c @@ -53,6 +53,7 @@ static u32 dma_busy_wait_threshold = 1<<15; module_param(dma_busy_wait_threshold, int, 0644); MODULE_PARM_DESC(dma_busy_wait_threshold, "Busy-wait for DMA completion below this area"); +static int fbswap = 0; /* module parameter */ /* this data structure describes each frame buffer device we find */ @@ -185,7 +186,12 @@ static int bcm2708_fb_set_bitfields(struct fb_var_screeninfo *var) * encoded in the pixel data. Calculate their position from * the bitfield length defined above. */ - if (ret == 0 && var->bits_per_pixel >= 24) { + if (ret == 0 && var->bits_per_pixel >= 24 && fbswap) { + var->blue.offset = 0; + var->green.offset = var->blue.offset + var->blue.length; + var->red.offset = var->green.offset + var->green.length; + var->transp.offset = var->red.offset + var->red.length; + } else if (ret == 0 && var->bits_per_pixel >= 24) { var->red.offset = 0; var->green.offset = var->red.offset + var->red.length; var->blue.offset = var->green.offset + var->green.length; @@ -618,8 +624,8 @@ static int bcm2708_fb_register(struct bcm2708_fb *fb) fb_set_var(&fb->fb, &fb->fb.var); - print_debug("BCM2708FB: registering framebuffer (%dx%d@%d)\n", fbwidth, - fbheight, fbdepth); + print_debug("BCM2708FB: registering framebuffer (%dx%d@%d) (%d)\n", fbwidth + fbheight, fbdepth, fbswap); ret = register_framebuffer(&fb->fb); print_debug("BCM2708FB: register framebuffer (%d)\n", ret); @@ -746,6 +752,7 @@ module_exit(bcm2708_fb_exit); module_param(fbwidth, int, 0644); module_param(fbheight, int, 0644); module_param(fbdepth, int, 0644); +module_param(fbswap, int, 0644); MODULE_DESCRIPTION("BCM2708 framebuffer driver"); MODULE_LICENSE("GPL"); @@ -753,3 +760,4 @@ MODULE_LICENSE("GPL"); MODULE_PARM_DESC(fbwidth, "Width of ARM Framebuffer"); MODULE_PARM_DESC(fbheight, "Height of ARM Framebuffer"); MODULE_PARM_DESC(fbdepth, "Bit depth of ARM Framebuffer"); +MODULE_PARM_DESC(fbswap, "Swap order of red and blue in 24 and 32 bit modes"); -- 1.9.1