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| author | Hans Petter Selasky <hselasky@FreeBSD.org> | 2015-03-07 20:45:15 +0000 |
|---|---|---|
| committer | Hans Petter Selasky <hselasky@FreeBSD.org> | 2015-03-07 20:45:15 +0000 |
| commit | a985ae9b4a05933af71c028be1a9c117aa3bbd25 (patch) | |
| tree | 3494d27d8f8adf927d562c71f1dadb9f9c493212 /sys/dev/fb | |
| parent | c3e2821f5f0b077f07dc70f8e445caf0d82b93ce (diff) | |
| download | src-a985ae9b4a05933af71c028be1a9c117aa3bbd25.tar.gz src-a985ae9b4a05933af71c028be1a9c117aa3bbd25.zip | |
Add support for USB display link adapters to the FB and VT drivers.
The vtophys() function is used to get the physical page address for
the virtually allocated frame buffers when a physically continuous
memory area is not available. This change also allows removing the
masking of the FB_FLAG_NOMMAP flag in the PS3 syscons driver.
The FB and VT drivers were tested using X.org/xf86-video-scfb and
syscons.
Notes
Notes:
svn path=/head/; revision=279752
Diffstat (limited to 'sys/dev/fb')
| -rw-r--r-- | sys/dev/fb/fbd.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/sys/dev/fb/fbd.c b/sys/dev/fb/fbd.c index 6b7b7316bf57..b7e45040f65e 100644 --- a/sys/dev/fb/fbd.c +++ b/sys/dev/fb/fbd.c @@ -51,6 +51,9 @@ __FBSDID("$FreeBSD$"); #include <dev/vt/vt.h> #include <dev/vt/hw/fb/vt_fb.h> +#include <vm/vm.h> +#include <vm/pmap.h> + #include "fb_if.h" LIST_HEAD(fb_list_head_t, fb_list_entry) fb_list_head = @@ -167,11 +170,14 @@ fb_mmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, int nprot, info = dev->si_drv1; - if ((info->fb_flags & FB_FLAG_NOMMAP) || info->fb_pbase == 0) + if (info->fb_flags & FB_FLAG_NOMMAP) return (ENODEV); - if (offset < info->fb_size) { - *paddr = info->fb_pbase + offset; + if (offset >= 0 && offset < info->fb_size) { + if (info->fb_pbase == 0) + *paddr = vtophys((uint8_t *)info->fb_vbase + offset); + else + *paddr = info->fb_pbase + offset; return (0); } return (EINVAL); @@ -356,5 +362,6 @@ devclass_t fbd_devclass; DRIVER_MODULE(fbd, fb, fbd_driver, fbd_devclass, 0, 0); DRIVER_MODULE(fbd, drmn, fbd_driver, fbd_devclass, 0, 0); +DRIVER_MODULE(fbd, udl, fbd_driver, fbd_devclass, 0, 0); MODULE_VERSION(fbd, 1); |