V4L/DVB (6208): pvrusb2: Implement programmatic means to extract prom contents
The pvrusb2 driver already has a method for extracting the FX2's
program memory back out to a user application; this ability is used to
facilitate manual firmware extraction as per the procedure documented
on the pvrusb2 web site. This change follows that pattern and
implements a corresponding method to grab the binary contents of the
PVR USB2 prom (which for PVR USB2 devices can contain information in
addition to the usual Hauppauge metadata).
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/pvrusb2/pvrusb2-debugifc.c b/drivers/media/video/pvrusb2/pvrusb2-debugifc.c
index e9da9bb..6f135f4 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-debugifc.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-debugifc.c
@@ -397,10 +397,22 @@
count -= scnt; buf += scnt;
if (!wptr) return -EINVAL;
if (debugifc_match_keyword(wptr,wlen,"fetch")) {
- pvr2_hdw_cpufw_set_enabled(hdw,!0);
+ scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
+ if (scnt && wptr) {
+ count -= scnt; buf += scnt;
+ if (debugifc_match_keyword(wptr,wlen,"prom")) {
+ pvr2_hdw_cpufw_set_enabled(hdw,!0,!0);
+ } else if (debugifc_match_keyword(wptr,wlen,
+ "ram")) {
+ pvr2_hdw_cpufw_set_enabled(hdw,0,!0);
+ } else {
+ return -EINVAL;
+ }
+ }
+ pvr2_hdw_cpufw_set_enabled(hdw,0,!0);
return 0;
} else if (debugifc_match_keyword(wptr,wlen,"done")) {
- pvr2_hdw_cpufw_set_enabled(hdw,0);
+ pvr2_hdw_cpufw_set_enabled(hdw,0,0);
return 0;
} else {
return -EINVAL;