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path: root/drivers/media/usb/pvrusb2/pvrusb2-sysfs.c
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Diffstat (limited to 'drivers/media/usb/pvrusb2/pvrusb2-sysfs.c')
-rw-r--r--drivers/media/usb/pvrusb2/pvrusb2-sysfs.c861
1 files changed, 861 insertions, 0 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-sysfs.c b/drivers/media/usb/pvrusb2/pvrusb2-sysfs.c
new file mode 100644
index 000000000000..6ef1335b2858
--- /dev/null
+++ b/drivers/media/usb/pvrusb2/pvrusb2-sysfs.c
@@ -0,0 +1,861 @@
+/*
+ *
+ *
+ * Copyright (C) 2005 Mike Isely <isely@pobox.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/string.h>
+#include <linux/slab.h>
+#include "pvrusb2-sysfs.h"
+#include "pvrusb2-hdw.h"
+#include "pvrusb2-debug.h"
+#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
+#include "pvrusb2-debugifc.h"
+#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
+
+#define pvr2_sysfs_trace(...) pvr2_trace(PVR2_TRACE_SYSFS,__VA_ARGS__)
+
+struct pvr2_sysfs {
+ struct pvr2_channel channel;
+ struct device *class_dev;
+#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
+ struct pvr2_sysfs_debugifc *debugifc;
+#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
+ struct pvr2_sysfs_ctl_item *item_first;
+ struct pvr2_sysfs_ctl_item *item_last;
+ struct device_attribute attr_v4l_minor_number;
+ struct device_attribute attr_v4l_radio_minor_number;
+ struct device_attribute attr_unit_number;
+ struct device_attribute attr_bus_info;
+ struct device_attribute attr_hdw_name;
+ struct device_attribute attr_hdw_desc;
+ int v4l_minor_number_created_ok;
+ int v4l_radio_minor_number_created_ok;
+ int unit_number_created_ok;
+ int bus_info_created_ok;
+ int hdw_name_created_ok;
+ int hdw_desc_created_ok;
+};
+
+#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
+struct pvr2_sysfs_debugifc {
+ struct device_attribute attr_debugcmd;
+ struct device_attribute attr_debuginfo;
+ int debugcmd_created_ok;
+ int debuginfo_created_ok;
+};
+#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
+
+struct pvr2_sysfs_ctl_item {
+ struct device_attribute attr_name;
+ struct device_attribute attr_type;
+ struct device_attribute attr_min;
+ struct device_attribute attr_max;
+ struct device_attribute attr_def;
+ struct device_attribute attr_enum;
+ struct device_attribute attr_bits;
+ struct device_attribute attr_val;
+ struct device_attribute attr_custom;
+ struct pvr2_ctrl *cptr;
+ int ctl_id;
+ struct pvr2_sysfs *chptr;
+ struct pvr2_sysfs_ctl_item *item_next;
+ struct attribute *attr_gen[8];
+ struct attribute_group grp;
+ int created_ok;
+ char name[80];
+};
+
+struct pvr2_sysfs_class {
+ struct class class;
+};
+
+static ssize_t show_name(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ const char *name;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_name);
+ name = pvr2_ctrl_get_desc(cip->cptr);
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_name(cid=%d) is %s",
+ cip->chptr, cip->ctl_id, name);
+ if (!name) return -EINVAL;
+ return scnprintf(buf, PAGE_SIZE, "%s\n", name);
+}
+
+static ssize_t show_type(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ const char *name;
+ enum pvr2_ctl_type tp;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_type);
+ tp = pvr2_ctrl_get_type(cip->cptr);
+ switch (tp) {
+ case pvr2_ctl_int: name = "integer"; break;
+ case pvr2_ctl_enum: name = "enum"; break;
+ case pvr2_ctl_bitmask: name = "bitmask"; break;
+ case pvr2_ctl_bool: name = "boolean"; break;
+ default: name = "?"; break;
+ }
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_type(cid=%d) is %s",
+ cip->chptr, cip->ctl_id, name);
+ if (!name) return -EINVAL;
+ return scnprintf(buf, PAGE_SIZE, "%s\n", name);
+}
+
+static ssize_t show_min(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ long val;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_min);
+ val = pvr2_ctrl_get_min(cip->cptr);
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_min(cid=%d) is %ld",
+ cip->chptr, cip->ctl_id, val);
+ return scnprintf(buf, PAGE_SIZE, "%ld\n", val);
+}
+
+static ssize_t show_max(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ long val;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_max);
+ val = pvr2_ctrl_get_max(cip->cptr);
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_max(cid=%d) is %ld",
+ cip->chptr, cip->ctl_id, val);
+ return scnprintf(buf, PAGE_SIZE, "%ld\n", val);
+}
+
+static ssize_t show_def(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ int val;
+ int ret;
+ unsigned int cnt = 0;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_def);
+ ret = pvr2_ctrl_get_def(cip->cptr, &val);
+ if (ret < 0) return ret;
+ ret = pvr2_ctrl_value_to_sym(cip->cptr, ~0, val,
+ buf, PAGE_SIZE - 1, &cnt);
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_def(cid=%d) is %.*s (%d)",
+ cip->chptr, cip->ctl_id, cnt, buf, val);
+ buf[cnt] = '\n';
+ return cnt + 1;
+}
+
+static ssize_t show_val_norm(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ int val;
+ int ret;
+ unsigned int cnt = 0;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_val);
+ ret = pvr2_ctrl_get_value(cip->cptr, &val);
+ if (ret < 0) return ret;
+ ret = pvr2_ctrl_value_to_sym(cip->cptr, ~0, val,
+ buf, PAGE_SIZE - 1, &cnt);
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_norm(cid=%d) is %.*s (%d)",
+ cip->chptr, cip->ctl_id, cnt, buf, val);
+ buf[cnt] = '\n';
+ return cnt+1;
+}
+
+static ssize_t show_val_custom(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ int val;
+ int ret;
+ unsigned int cnt = 0;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_custom);
+ ret = pvr2_ctrl_get_value(cip->cptr, &val);
+ if (ret < 0) return ret;
+ ret = pvr2_ctrl_custom_value_to_sym(cip->cptr, ~0, val,
+ buf, PAGE_SIZE - 1, &cnt);
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_custom(cid=%d) is %.*s (%d)",
+ cip->chptr, cip->ctl_id, cnt, buf, val);
+ buf[cnt] = '\n';
+ return cnt+1;
+}
+
+static ssize_t show_enum(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ long val;
+ unsigned int bcnt, ccnt, ecnt;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_enum);
+ ecnt = pvr2_ctrl_get_cnt(cip->cptr);
+ bcnt = 0;
+ for (val = 0; val < ecnt; val++) {
+ pvr2_ctrl_get_valname(cip->cptr, val, buf + bcnt,
+ PAGE_SIZE - bcnt, &ccnt);
+ if (!ccnt) continue;
+ bcnt += ccnt;
+ if (bcnt >= PAGE_SIZE) break;
+ buf[bcnt] = '\n';
+ bcnt++;
+ }
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_enum(cid=%d)",
+ cip->chptr, cip->ctl_id);
+ return bcnt;
+}
+
+static ssize_t show_bits(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ int valid_bits, msk;
+ unsigned int bcnt, ccnt;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_bits);
+ valid_bits = pvr2_ctrl_get_mask(cip->cptr);
+ bcnt = 0;
+ for (msk = 1; valid_bits; msk <<= 1) {
+ if (!(msk & valid_bits)) continue;
+ valid_bits &= ~msk;
+ pvr2_ctrl_get_valname(cip->cptr, msk, buf + bcnt,
+ PAGE_SIZE - bcnt, &ccnt);
+ bcnt += ccnt;
+ if (bcnt >= PAGE_SIZE) break;
+ buf[bcnt] = '\n';
+ bcnt++;
+ }
+ pvr2_sysfs_trace("pvr2_sysfs(%p) show_bits(cid=%d)",
+ cip->chptr, cip->ctl_id);
+ return bcnt;
+}
+
+static int store_val_any(struct pvr2_sysfs_ctl_item *cip, int customfl,
+ const char *buf,unsigned int count)
+{
+ int ret;
+ int mask,val;
+ if (customfl) {
+ ret = pvr2_ctrl_custom_sym_to_value(cip->cptr, buf, count,
+ &mask, &val);
+ } else {
+ ret = pvr2_ctrl_sym_to_value(cip->cptr, buf, count,
+ &mask, &val);
+ }
+ if (ret < 0) return ret;
+ ret = pvr2_ctrl_set_mask_value(cip->cptr, mask, val);
+ pvr2_hdw_commit_ctl(cip->chptr->channel.hdw);
+ return ret;
+}
+
+static ssize_t store_val_norm(struct device *class_dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ int ret;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_val);
+ pvr2_sysfs_trace("pvr2_sysfs(%p) store_val_norm(cid=%d) \"%.*s\"",
+ cip->chptr, cip->ctl_id, (int)count, buf);
+ ret = store_val_any(cip, 0, buf, count);
+ if (!ret) ret = count;
+ return ret;
+}
+
+static ssize_t store_val_custom(struct device *class_dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ int ret;
+ cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_custom);
+ pvr2_sysfs_trace("pvr2_sysfs(%p) store_val_custom(cid=%d) \"%.*s\"",
+ cip->chptr, cip->ctl_id, (int)count, buf);
+ ret = store_val_any(cip, 1, buf, count);
+ if (!ret) ret = count;
+ return ret;
+}
+
+static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id)
+{
+ struct pvr2_sysfs_ctl_item *cip;
+ struct pvr2_ctrl *cptr;
+ unsigned int cnt,acnt;
+ int ret;
+
+ cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,ctl_id);
+ if (!cptr) return;
+
+ cip = kzalloc(sizeof(*cip),GFP_KERNEL);
+ if (!cip) return;
+ pvr2_sysfs_trace("Creating pvr2_sysfs_ctl_item id=%p",cip);
+
+ cip->cptr = cptr;
+ cip->ctl_id = ctl_id;
+
+ cip->chptr = sfp;
+ cip->item_next = NULL;
+ if (sfp->item_last) {
+ sfp->item_last->item_next = cip;
+ } else {
+ sfp->item_first = cip;
+ }
+ sfp->item_last = cip;
+
+ sysfs_attr_init(&cip->attr_name.attr);
+ cip->attr_name.attr.name = "name";
+ cip->attr_name.attr.mode = S_IRUGO;
+ cip->attr_name.show = show_name;
+
+ sysfs_attr_init(&cip->attr_type.attr);
+ cip->attr_type.attr.name = "type";
+ cip->attr_type.attr.mode = S_IRUGO;
+ cip->attr_type.show = show_type;
+
+ sysfs_attr_init(&cip->attr_min.attr);
+ cip->attr_min.attr.name = "min_val";
+ cip->attr_min.attr.mode = S_IRUGO;
+ cip->attr_min.show = show_min;
+
+ sysfs_attr_init(&cip->attr_max.attr);
+ cip->attr_max.attr.name = "max_val";
+ cip->attr_max.attr.mode = S_IRUGO;
+ cip->attr_max.show = show_max;
+
+ sysfs_attr_init(&cip->attr_def.attr);
+ cip->attr_def.attr.name = "def_val";
+ cip->attr_def.attr.mode = S_IRUGO;
+ cip->attr_def.show = show_def;
+
+ sysfs_attr_init(&cip->attr_val.attr);
+ cip->attr_val.attr.name = "cur_val";
+ cip->attr_val.attr.mode = S_IRUGO;
+
+ sysfs_attr_init(&cip->attr_custom.attr);
+ cip->attr_custom.attr.name = "custom_val";
+ cip->attr_custom.attr.mode = S_IRUGO;
+
+ sysfs_attr_init(&cip->attr_enum.attr);
+ cip->attr_enum.attr.name = "enum_val";
+ cip->attr_enum.attr.mode = S_IRUGO;
+ cip->attr_enum.show = show_enum;
+
+ sysfs_attr_init(&cip->attr_bits.attr);
+ cip->attr_bits.attr.name = "bit_val";
+ cip->attr_bits.attr.mode = S_IRUGO;
+ cip->attr_bits.show = show_bits;
+
+ if (pvr2_ctrl_is_writable(cptr)) {
+ cip->attr_val.attr.mode |= S_IWUSR|S_IWGRP;
+ cip->attr_custom.attr.mode |= S_IWUSR|S_IWGRP;
+ }
+
+ acnt = 0;
+ cip->attr_gen[acnt++] = &cip->attr_name.attr;
+ cip->attr_gen[acnt++] = &cip->attr_type.attr;
+ cip->attr_gen[acnt++] = &cip->attr_val.attr;
+ cip->attr_gen[acnt++] = &cip->attr_def.attr;
+ cip->attr_val.show = show_val_norm;
+ cip->attr_val.store = store_val_norm;
+ if (pvr2_ctrl_has_custom_symbols(cptr)) {
+ cip->attr_gen[acnt++] = &cip->attr_custom.attr;
+ cip->attr_custom.show = show_val_custom;
+ cip->attr_custom.store = store_val_custom;
+ }
+ switch (pvr2_ctrl_get_type(cptr)) {
+ case pvr2_ctl_enum:
+ // Control is an enumeration
+ cip->attr_gen[acnt++] = &cip->attr_enum.attr;
+ break;
+ case pvr2_ctl_int:
+ // Control is an integer
+ cip->attr_gen[acnt++] = &cip->attr_min.attr;
+ cip->attr_gen[acnt++] = &cip->attr_max.attr;
+ break;
+ case pvr2_ctl_bitmask:
+ // Control is an bitmask
+ cip->attr_gen[acnt++] = &cip->attr_bits.attr;
+ break;
+ default: break;
+ }
+
+ cnt = scnprintf(cip->name,sizeof(cip->name)-1,"ctl_%s",
+ pvr2_ctrl_get_name(cptr));
+ cip->name[cnt] = 0;
+ cip->grp.name = cip->name;
+ cip->grp.attrs = cip->attr_gen;
+
+ ret = sysfs_create_group(&sfp->class_dev->kobj,&cip->grp);
+ if (ret) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "sysfs_create_group error: %d",
+ ret);
+ return;
+ }
+ cip->created_ok = !0;
+}
+
+#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
+static ssize_t debuginfo_show(struct device *, struct device_attribute *,
+ char *);
+static ssize_t debugcmd_show(struct device *, struct device_attribute *,
+ char *);
+static ssize_t debugcmd_store(struct device *, struct device_attribute *,
+ const char *, size_t count);
+
+static void pvr2_sysfs_add_debugifc(struct pvr2_sysfs *sfp)
+{
+ struct pvr2_sysfs_debugifc *dip;
+ int ret;
+
+ dip = kzalloc(sizeof(*dip),GFP_KERNEL);
+ if (!dip) return;
+ sysfs_attr_init(&dip->attr_debugcmd.attr);
+ dip->attr_debugcmd.attr.name = "debugcmd";
+ dip->attr_debugcmd.attr.mode = S_IRUGO|S_IWUSR|S_IWGRP;
+ dip->attr_debugcmd.show = debugcmd_show;
+ dip->attr_debugcmd.store = debugcmd_store;
+ sysfs_attr_init(&dip->attr_debuginfo.attr);
+ dip->attr_debuginfo.attr.name = "debuginfo";
+ dip->attr_debuginfo.attr.mode = S_IRUGO;
+ dip->attr_debuginfo.show = debuginfo_show;
+ sfp->debugifc = dip;
+ ret = device_create_file(sfp->class_dev,&dip->attr_debugcmd);
+ if (ret < 0) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "device_create_file error: %d",
+ ret);
+ } else {
+ dip->debugcmd_created_ok = !0;
+ }
+ ret = device_create_file(sfp->class_dev,&dip->attr_debuginfo);
+ if (ret < 0) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "device_create_file error: %d",
+ ret);
+ } else {
+ dip->debuginfo_created_ok = !0;
+ }
+}
+
+
+static void pvr2_sysfs_tear_down_debugifc(struct pvr2_sysfs *sfp)
+{
+ if (!sfp->debugifc) return;
+ if (sfp->debugifc->debuginfo_created_ok) {
+ device_remove_file(sfp->class_dev,
+ &sfp->debugifc->attr_debuginfo);
+ }
+ if (sfp->debugifc->debugcmd_created_ok) {
+ device_remove_file(sfp->class_dev,
+ &sfp->debugifc->attr_debugcmd);
+ }
+ kfree(sfp->debugifc);
+ sfp->debugifc = NULL;
+}
+#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
+
+
+static void pvr2_sysfs_add_controls(struct pvr2_sysfs *sfp)
+{
+ unsigned int idx,cnt;
+ cnt = pvr2_hdw_get_ctrl_count(sfp->channel.hdw);
+ for (idx = 0; idx < cnt; idx++) {
+ pvr2_sysfs_add_control(sfp,idx);
+ }
+}
+
+
+static void pvr2_sysfs_tear_down_controls(struct pvr2_sysfs *sfp)
+{
+ struct pvr2_sysfs_ctl_item *cip1,*cip2;
+ for (cip1 = sfp->item_first; cip1; cip1 = cip2) {
+ cip2 = cip1->item_next;
+ if (cip1->created_ok) {
+ sysfs_remove_group(&sfp->class_dev->kobj,&cip1->grp);
+ }
+ pvr2_sysfs_trace("Destroying pvr2_sysfs_ctl_item id=%p",cip1);
+ kfree(cip1);
+ }
+}
+
+
+static void pvr2_sysfs_class_release(struct class *class)
+{
+ struct pvr2_sysfs_class *clp;
+ clp = container_of(class,struct pvr2_sysfs_class,class);
+ pvr2_sysfs_trace("Destroying pvr2_sysfs_class id=%p",clp);
+ kfree(clp);
+}
+
+
+static void pvr2_sysfs_release(struct device *class_dev)
+{
+ pvr2_sysfs_trace("Releasing class_dev id=%p",class_dev);
+ kfree(class_dev);
+}
+
+
+static void class_dev_destroy(struct pvr2_sysfs *sfp)
+{
+ struct device *dev;
+ if (!sfp->class_dev) return;
+#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
+ pvr2_sysfs_tear_down_debugifc(sfp);
+#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
+ pvr2_sysfs_tear_down_controls(sfp);
+ if (sfp->hdw_desc_created_ok) {
+ device_remove_file(sfp->class_dev,
+ &sfp->attr_hdw_desc);
+ }
+ if (sfp->hdw_name_created_ok) {
+ device_remove_file(sfp->class_dev,
+ &sfp->attr_hdw_name);
+ }
+ if (sfp->bus_info_created_ok) {
+ device_remove_file(sfp->class_dev,
+ &sfp->attr_bus_info);
+ }
+ if (sfp->v4l_minor_number_created_ok) {
+ device_remove_file(sfp->class_dev,
+ &sfp->attr_v4l_minor_number);
+ }
+ if (sfp->v4l_radio_minor_number_created_ok) {
+ device_remove_file(sfp->class_dev,
+ &sfp->attr_v4l_radio_minor_number);
+ }
+ if (sfp->unit_number_created_ok) {
+ device_remove_file(sfp->class_dev,
+ &sfp->attr_unit_number);
+ }
+ pvr2_sysfs_trace("Destroying class_dev id=%p",sfp->class_dev);
+ dev_set_drvdata(sfp->class_dev, NULL);
+ dev = sfp->class_dev->parent;
+ sfp->class_dev->parent = NULL;
+ put_device(dev);
+ device_unregister(sfp->class_dev);
+ sfp->class_dev = NULL;
+}
+
+
+static ssize_t v4l_minor_number_show(struct device *class_dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = dev_get_drvdata(class_dev);
+ if (!sfp) return -EINVAL;
+ return scnprintf(buf,PAGE_SIZE,"%d\n",
+ pvr2_hdw_v4l_get_minor_number(sfp->channel.hdw,
+ pvr2_v4l_type_video));
+}
+
+
+static ssize_t bus_info_show(struct device *class_dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = dev_get_drvdata(class_dev);
+ if (!sfp) return -EINVAL;
+ return scnprintf(buf,PAGE_SIZE,"%s\n",
+ pvr2_hdw_get_bus_info(sfp->channel.hdw));
+}
+
+
+static ssize_t hdw_name_show(struct device *class_dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = dev_get_drvdata(class_dev);
+ if (!sfp) return -EINVAL;
+ return scnprintf(buf,PAGE_SIZE,"%s\n",
+ pvr2_hdw_get_type(sfp->channel.hdw));
+}
+
+
+static ssize_t hdw_desc_show(struct device *class_dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = dev_get_drvdata(class_dev);
+ if (!sfp) return -EINVAL;
+ return scnprintf(buf,PAGE_SIZE,"%s\n",
+ pvr2_hdw_get_desc(sfp->channel.hdw));
+}
+
+
+static ssize_t v4l_radio_minor_number_show(struct device *class_dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = dev_get_drvdata(class_dev);
+ if (!sfp) return -EINVAL;
+ return scnprintf(buf,PAGE_SIZE,"%d\n",
+ pvr2_hdw_v4l_get_minor_number(sfp->channel.hdw,
+ pvr2_v4l_type_radio));
+}
+
+
+static ssize_t unit_number_show(struct device *class_dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = dev_get_drvdata(class_dev);
+ if (!sfp) return -EINVAL;
+ return scnprintf(buf,PAGE_SIZE,"%d\n",
+ pvr2_hdw_get_unit_number(sfp->channel.hdw));
+}
+
+
+static void class_dev_create(struct pvr2_sysfs *sfp,
+ struct pvr2_sysfs_class *class_ptr)
+{
+ struct usb_device *usb_dev;
+ struct device *class_dev;
+ int ret;
+
+ usb_dev = pvr2_hdw_get_dev(sfp->channel.hdw);
+ if (!usb_dev) return;
+ class_dev = kzalloc(sizeof(*class_dev),GFP_KERNEL);
+ if (!class_dev) return;
+
+ pvr2_sysfs_trace("Creating class_dev id=%p",class_dev);
+
+ class_dev->class = &class_ptr->class;
+
+ dev_set_name(class_dev, "%s",
+ pvr2_hdw_get_device_identifier(sfp->channel.hdw));
+
+ class_dev->parent = get_device(&usb_dev->dev);
+
+ sfp->class_dev = class_dev;
+ dev_set_drvdata(class_dev, sfp);
+ ret = device_register(class_dev);
+ if (ret) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "device_register failed");
+ put_device(class_dev);
+ return;
+ }
+
+ sysfs_attr_init(&sfp->attr_v4l_minor_number.attr);
+ sfp->attr_v4l_minor_number.attr.name = "v4l_minor_number";
+ sfp->attr_v4l_minor_number.attr.mode = S_IRUGO;
+ sfp->attr_v4l_minor_number.show = v4l_minor_number_show;
+ sfp->attr_v4l_minor_number.store = NULL;
+ ret = device_create_file(sfp->class_dev,
+ &sfp->attr_v4l_minor_number);
+ if (ret < 0) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "device_create_file error: %d",
+ ret);
+ } else {
+ sfp->v4l_minor_number_created_ok = !0;
+ }
+
+ sysfs_attr_init(&sfp->attr_v4l_radio_minor_number.attr);
+ sfp->attr_v4l_radio_minor_number.attr.name = "v4l_radio_minor_number";
+ sfp->attr_v4l_radio_minor_number.attr.mode = S_IRUGO;
+ sfp->attr_v4l_radio_minor_number.show = v4l_radio_minor_number_show;
+ sfp->attr_v4l_radio_minor_number.store = NULL;
+ ret = device_create_file(sfp->class_dev,
+ &sfp->attr_v4l_radio_minor_number);
+ if (ret < 0) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "device_create_file error: %d",
+ ret);
+ } else {
+ sfp->v4l_radio_minor_number_created_ok = !0;
+ }
+
+ sysfs_attr_init(&sfp->attr_unit_number.attr);
+ sfp->attr_unit_number.attr.name = "unit_number";
+ sfp->attr_unit_number.attr.mode = S_IRUGO;
+ sfp->attr_unit_number.show = unit_number_show;
+ sfp->attr_unit_number.store = NULL;
+ ret = device_create_file(sfp->class_dev,&sfp->attr_unit_number);
+ if (ret < 0) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "device_create_file error: %d",
+ ret);
+ } else {
+ sfp->unit_number_created_ok = !0;
+ }
+
+ sysfs_attr_init(&sfp->attr_bus_info.attr);
+ sfp->attr_bus_info.attr.name = "bus_info_str";
+ sfp->attr_bus_info.attr.mode = S_IRUGO;
+ sfp->attr_bus_info.show = bus_info_show;
+ sfp->attr_bus_info.store = NULL;
+ ret = device_create_file(sfp->class_dev,
+ &sfp->attr_bus_info);
+ if (ret < 0) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "device_create_file error: %d",
+ ret);
+ } else {
+ sfp->bus_info_created_ok = !0;
+ }
+
+ sysfs_attr_init(&sfp->attr_hdw_name.attr);
+ sfp->attr_hdw_name.attr.name = "device_hardware_type";
+ sfp->attr_hdw_name.attr.mode = S_IRUGO;
+ sfp->attr_hdw_name.show = hdw_name_show;
+ sfp->attr_hdw_name.store = NULL;
+ ret = device_create_file(sfp->class_dev,
+ &sfp->attr_hdw_name);
+ if (ret < 0) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "device_create_file error: %d",
+ ret);
+ } else {
+ sfp->hdw_name_created_ok = !0;
+ }
+
+ sysfs_attr_init(&sfp->attr_hdw_desc.attr);
+ sfp->attr_hdw_desc.attr.name = "device_hardware_description";
+ sfp->attr_hdw_desc.attr.mode = S_IRUGO;
+ sfp->attr_hdw_desc.show = hdw_desc_show;
+ sfp->attr_hdw_desc.store = NULL;
+ ret = device_create_file(sfp->class_dev,
+ &sfp->attr_hdw_desc);
+ if (ret < 0) {
+ pvr2_trace(PVR2_TRACE_ERROR_LEGS,
+ "device_create_file error: %d",
+ ret);
+ } else {
+ sfp->hdw_desc_created_ok = !0;
+ }
+
+ pvr2_sysfs_add_controls(sfp);
+#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
+ pvr2_sysfs_add_debugifc(sfp);
+#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
+}
+
+
+static void pvr2_sysfs_internal_check(struct pvr2_channel *chp)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = container_of(chp,struct pvr2_sysfs,channel);
+ if (!sfp->channel.mc_head->disconnect_flag) return;
+ pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_sysfs id=%p",sfp);
+ class_dev_destroy(sfp);
+ pvr2_channel_done(&sfp->channel);
+ kfree(sfp);
+}
+
+
+struct pvr2_sysfs *pvr2_sysfs_create(struct pvr2_context *mp,
+ struct pvr2_sysfs_class *class_ptr)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = kzalloc(sizeof(*sfp),GFP_KERNEL);
+ if (!sfp) return sfp;
+ pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_sysfs id=%p",sfp);
+ pvr2_channel_init(&sfp->channel,mp);
+ sfp->channel.check_func = pvr2_sysfs_internal_check;
+
+ class_dev_create(sfp,class_ptr);
+ return sfp;
+}
+
+
+
+struct pvr2_sysfs_class *pvr2_sysfs_class_create(void)
+{
+ struct pvr2_sysfs_class *clp;
+ clp = kzalloc(sizeof(*clp),GFP_KERNEL);
+ if (!clp) return clp;
+ pvr2_sysfs_trace("Creating and registering pvr2_sysfs_class id=%p",
+ clp);
+ clp->class.name = "pvrusb2";
+ clp->class.class_release = pvr2_sysfs_class_release;
+ clp->class.dev_release = pvr2_sysfs_release;
+ if (class_register(&clp->class)) {
+ pvr2_sysfs_trace(
+ "Registration failed for pvr2_sysfs_class id=%p",clp);
+ kfree(clp);
+ clp = NULL;
+ }
+ return clp;
+}
+
+
+void pvr2_sysfs_class_destroy(struct pvr2_sysfs_class *clp)
+{
+ pvr2_sysfs_trace("Unregistering pvr2_sysfs_class id=%p", clp);
+ class_unregister(&clp->class);
+}
+
+
+#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
+static ssize_t debuginfo_show(struct device *class_dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = dev_get_drvdata(class_dev);
+ if (!sfp) return -EINVAL;
+ pvr2_hdw_trigger_module_log(sfp->channel.hdw);
+ return pvr2_debugifc_print_info(sfp->channel.hdw,buf,PAGE_SIZE);
+}
+
+
+static ssize_t debugcmd_show(struct device *class_dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pvr2_sysfs *sfp;
+ sfp = dev_get_drvdata(class_dev);
+ if (!sfp) return -EINVAL;
+ return pvr2_debugifc_print_status(sfp->channel.hdw,buf,PAGE_SIZE);
+}
+
+
+static ssize_t debugcmd_store(struct device *class_dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pvr2_sysfs *sfp;
+ int ret;
+
+ sfp = dev_get_drvdata(class_dev);
+ if (!sfp) return -EINVAL;
+
+ ret = pvr2_debugifc_docmd(sfp->channel.hdw,buf,count);
+ if (ret < 0) return ret;
+ return count;
+}
+#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
+
+
+/*
+ Stuff for Emacs to see, in order to encourage consistent editing style:
+ *** Local Variables: ***
+ *** mode: c ***
+ *** fill-column: 75 ***
+ *** tab-width: 8 ***
+ *** c-basic-offset: 8 ***
+ *** End: ***
+ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 04:59:32 +0000