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authorMike Isely <isely@pobox.com>2009-03-09 00:25:46 +0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 19:43:39 +0400
commit2eb563b7e726b517ef86213df436f50ec6c1740c (patch)
tree26eaa4f7ae713d93fb4fff48e363471edabbd3cc /drivers/media/video/pvrusb2/pvrusb2-hdw.c
parentfd28aeafd6aecf203d750871616902cbdb537e99 (diff)
downloadlinux-2eb563b7e726b517ef86213df436f50ec6c1740c.tar.xz
V4L/DVB (11203): pvrusb2: Implement better reporting on attached sub-devices
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-hdw.c')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-hdw.c115
1 files changed, 86 insertions, 29 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 0cfe0eec34ea..b0383153e3ce 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -4876,38 +4876,82 @@ static unsigned int pvr2_hdw_report_unlocked(struct pvr2_hdw *hdw,int which,
stats.buffers_processed,
stats.buffers_failed);
}
- case 6: {
- struct v4l2_subdev *sd;
- unsigned int tcnt = 0;
- unsigned int ccnt;
- const char *p;
- unsigned int id;
- ccnt = scnprintf(buf,
- acnt,
- "Associated v4l2_subdev drivers:");
+ default: break;
+ }
+ return 0;
+}
+
+
+/* Generate report containing info about attached sub-devices and attached
+ i2c clients, including an indication of which attached i2c clients are
+ actually sub-devices. */
+static unsigned int pvr2_hdw_report_clients(struct pvr2_hdw *hdw,
+ char *buf, unsigned int acnt)
+{
+ struct v4l2_subdev *sd;
+ unsigned int tcnt = 0;
+ unsigned int ccnt;
+ struct i2c_client *client;
+ struct list_head *item;
+ void *cd;
+ const char *p;
+ unsigned int id;
+
+ ccnt = scnprintf(buf, acnt, "Associated v4l2-subdev drivers:");
+ tcnt += ccnt;
+ v4l2_device_for_each_subdev(sd, &hdw->v4l2_dev) {
+ id = sd->grp_id;
+ p = NULL;
+ if (id < ARRAY_SIZE(module_names)) p = module_names[id];
+ if (p) {
+ ccnt = scnprintf(buf + tcnt, acnt - tcnt, " %s", p);
+ tcnt += ccnt;
+ } else {
+ ccnt = scnprintf(buf + tcnt, acnt - tcnt,
+ " (unknown id=%u)", id);
+ tcnt += ccnt;
+ }
+ }
+ ccnt = scnprintf(buf + tcnt, acnt - tcnt, "\n");
+ tcnt += ccnt;
+
+ ccnt = scnprintf(buf + tcnt, acnt - tcnt, "I2C clients:\n");
+ tcnt += ccnt;
+
+ mutex_lock(&hdw->i2c_adap.clist_lock);
+ list_for_each(item, &hdw->i2c_adap.clients) {
+ client = list_entry(item, struct i2c_client, list);
+ ccnt = scnprintf(buf + tcnt, acnt - tcnt,
+ " %s: i2c=%02x", client->name, client->addr);
tcnt += ccnt;
+ cd = i2c_get_clientdata(client);
v4l2_device_for_each_subdev(sd, &hdw->v4l2_dev) {
- id = sd->grp_id;
- p = NULL;
- if (id < ARRAY_SIZE(module_names)) {
- p = module_names[id];
- }
- if (p) {
- ccnt = scnprintf(buf + tcnt,
- acnt - tcnt,
- " %s", p);
- } else {
- ccnt = scnprintf(buf + tcnt,
- acnt - tcnt,
- " (unknown id=%u)", id);
+ if (cd == sd) {
+ id = sd->grp_id;
+ p = NULL;
+ if (id < ARRAY_SIZE(module_names)) {
+ p = module_names[id];
+ }
+ if (p) {
+ ccnt = scnprintf(buf + tcnt,
+ acnt - tcnt,
+ " subdev=%s", p);
+ tcnt += ccnt;
+ } else {
+ ccnt = scnprintf(buf + tcnt,
+ acnt - tcnt,
+ " subdev= id %u)",
+ id);
+ tcnt += ccnt;
+ }
+ break;
}
- tcnt += ccnt;
}
- return tcnt;
- }
- default: break;
+ ccnt = scnprintf(buf + tcnt, acnt - tcnt, "\n");
+ tcnt += ccnt;
}
- return 0;
+ mutex_unlock(&hdw->i2c_adap.clist_lock);
+ return tcnt;
}
@@ -4925,6 +4969,8 @@ unsigned int pvr2_hdw_state_report(struct pvr2_hdw *hdw,
buf[0] = '\n'; ccnt = 1;
bcnt += ccnt; acnt -= ccnt; buf += ccnt;
}
+ ccnt = pvr2_hdw_report_clients(hdw, buf, acnt);
+ bcnt += ccnt; acnt -= ccnt; buf += ccnt;
LOCK_GIVE(hdw->big_lock);
return bcnt;
}
@@ -4932,14 +4978,25 @@ unsigned int pvr2_hdw_state_report(struct pvr2_hdw *hdw,
static void pvr2_hdw_state_log_state(struct pvr2_hdw *hdw)
{
- char buf[128];
- unsigned int idx,ccnt;
+ char buf[256];
+ unsigned int idx, ccnt;
+ unsigned int lcnt, ucnt;
for (idx = 0; ; idx++) {
ccnt = pvr2_hdw_report_unlocked(hdw,idx,buf,sizeof(buf));
if (!ccnt) break;
printk(KERN_INFO "%s %.*s\n",hdw->name,ccnt,buf);
}
+ ccnt = pvr2_hdw_report_clients(hdw, buf, sizeof(buf));
+ ucnt = 0;
+ while (ucnt < ccnt) {
+ lcnt = 0;
+ while ((lcnt + ucnt < ccnt) && (buf[lcnt + ucnt] != '\n')) {
+ lcnt++;
+ }
+ printk(KERN_INFO "%s %.*s\n", hdw->name, lcnt, buf + ucnt);
+ ucnt += lcnt + 1;
+ }
}