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authorChristian Gromm <christian.gromm@microchip.com>2017-01-23 11:40:19 +0100
committerJan-Simon Möller <jsmoeller@linuxfoundation.org>2017-03-02 23:28:19 +0100
commit61ddb0d8f200af2da56f0922ffabfa7c5627ad15 (patch)
treea34dc001aae54aaa9012a95c8e3c6bcf9f93ca77 /driver/mostcore/core.c
parent627c0408d94aa15f3fd977b24e874923a6504c64 (diff)
This patch updates the driver package to v1.4.0-stable. Change-Id: I8cb5f5287c49ea7fc178816d3713099a6e3079a8 Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Diffstat (limited to 'driver/mostcore/core.c')
-rw-r--r--driver/mostcore/core.c97
1 files changed, 51 insertions, 46 deletions
diff --git a/driver/mostcore/core.c b/driver/mostcore/core.c
index 81dbac9..4c580d1 100644
--- a/driver/mostcore/core.c
+++ b/driver/mostcore/core.c
@@ -51,7 +51,7 @@ struct most_c_obj {
u16 channel_id;
bool is_poisoned;
struct mutex start_mutex;
- struct mutex nq_mutex;
+ struct mutex nq_mutex; /* nq thread synchronization */
int is_starving;
struct most_interface *iface;
struct most_inst_obj *inst;
@@ -83,10 +83,13 @@ struct most_inst_obj {
static const struct {
int most_ch_data_type;
char *name;
-} ch_data_type[] = { { MOST_CH_CONTROL, "control\n" },
+} ch_data_type[] = {
+ { MOST_CH_CONTROL, "control\n" },
{ MOST_CH_ASYNC, "async\n" },
{ MOST_CH_SYNC, "sync\n" },
- { MOST_CH_ISOC_AVP, "isoc_avp\n"} };
+ { MOST_CH_ISOC, "isoc\n"},
+ { MOST_CH_ISOC, "isoc_avp\n"},
+};
#define to_inst_obj(d) container_of(d, struct most_inst_obj, kobj)
@@ -261,11 +264,11 @@ static ssize_t show_available_directions(struct most_c_obj *c,
strcpy(buf, "");
if (c->iface->channel_vector[i].direction & MOST_CH_RX)
- strcat(buf, "dir_rx ");
+ strcat(buf, "rx ");
if (c->iface->channel_vector[i].direction & MOST_CH_TX)
- strcat(buf, "dir_tx ");
+ strcat(buf, "tx ");
strcat(buf, "\n");
- return strlen(buf) + 1;
+ return strlen(buf);
}
static ssize_t show_available_datatypes(struct most_c_obj *c,
@@ -281,10 +284,10 @@ static ssize_t show_available_datatypes(struct most_c_obj *c,
strcat(buf, "async ");
if (c->iface->channel_vector[i].data_type & MOST_CH_SYNC)
strcat(buf, "sync ");
- if (c->iface->channel_vector[i].data_type & MOST_CH_ISOC_AVP)
- strcat(buf, "isoc_avp ");
+ if (c->iface->channel_vector[i].data_type & MOST_CH_ISOC)
+ strcat(buf, "isoc ");
strcat(buf, "\n");
- return strlen(buf) + 1;
+ return strlen(buf);
}
static
@@ -392,9 +395,9 @@ static ssize_t show_set_direction(struct most_c_obj *c,
char *buf)
{
if (c->cfg.direction & MOST_CH_TX)
- return snprintf(buf, PAGE_SIZE, "dir_tx\n");
+ return snprintf(buf, PAGE_SIZE, "tx\n");
else if (c->cfg.direction & MOST_CH_RX)
- return snprintf(buf, PAGE_SIZE, "dir_rx\n");
+ return snprintf(buf, PAGE_SIZE, "rx\n");
return snprintf(buf, PAGE_SIZE, "unconfigured\n");
}
@@ -405,8 +408,12 @@ static ssize_t store_set_direction(struct most_c_obj *c,
{
if (!strcmp(buf, "dir_rx\n")) {
c->cfg.direction = MOST_CH_RX;
+ } else if (!strcmp(buf, "rx\n")) {
+ c->cfg.direction = MOST_CH_RX;
} else if (!strcmp(buf, "dir_tx\n")) {
c->cfg.direction = MOST_CH_TX;
+ } else if (!strcmp(buf, "tx\n")) {
+ c->cfg.direction = MOST_CH_TX;
} else {
pr_info("WARN: invalid attribute settings\n");
return -EINVAL;
@@ -756,8 +763,6 @@ struct most_aim_obj {
struct kobject kobj;
struct list_head list;
struct most_aim *driver;
- char add_link[STRING_SIZE];
- char remove_link[STRING_SIZE];
};
#define to_aim_obj(d) container_of(d, struct most_aim_obj, kobj)
@@ -848,7 +853,23 @@ static ssize_t show_add_link(struct most_aim_obj *aim_obj,
struct most_aim_attribute *attr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%s\n", aim_obj->add_link);
+ struct most_c_obj *c;
+ struct most_inst_obj *i;
+ int offs = 0;
+
+ list_for_each_entry(i, &instance_list, list) {
+ list_for_each_entry(c, &i->channel_list, list) {
+ if (c->aim0.ptr == aim_obj->driver ||
+ c->aim1.ptr == aim_obj->driver) {
+ offs += snprintf(buf + offs, PAGE_SIZE - offs,
+ "%s:%s\n",
+ kobject_name(&i->kobj),
+ kobject_name(&c->kobj));
+ }
+ }
+ }
+
+ return offs;
}
/**
@@ -862,16 +883,16 @@ static ssize_t show_add_link(struct most_aim_obj *aim_obj,
*
* Examples:
*
- * Input: "mdev0:ch0@ep_81:my_channel\n" or
- * "mdev0:ch0@ep_81:my_channel"
+ * Input: "mdev0:ch6:my_channel\n" or
+ * "mdev0:ch6:my_channel"
*
- * Output: *a -> "mdev0", *b -> "ch0@ep_81", *c -> "my_channel"
+ * Output: *a -> "mdev0", *b -> "ch6", *c -> "my_channel"
*
- * Input: "mdev0:ch0@ep_81\n"
- * Output: *a -> "mdev0", *b -> "ch0@ep_81", *c -> ""
+ * Input: "mdev1:ep81\n"
+ * Output: *a -> "mdev1", *b -> "ep81", *c -> ""
*
- * Input: "mdev0:ch0@ep_81"
- * Output: *a -> "mdev0", *b -> "ch0@ep_81", *c == NULL
+ * Input: "mdev1:ep81"
+ * Output: *a -> "mdev1", *b -> "ep81", *c == NULL
*/
static int split_string(char *buf, char **a, char **b, char **c)
{
@@ -939,11 +960,11 @@ most_c_obj *get_channel_by_name(char *mdev, char *mdev_ch)
* Searches for a pair of device and channel and probes the AIM
*
* Example:
- * (1) echo -n -e "mdev0:ch0@ep_81:my_rxchannel\n" >add_link
- * (2) echo -n -e "mdev0:ch0@ep_81\n" >add_link
+ * (1) echo "mdev0:ch6:my_rxchannel" >add_link
+ * (2) echo "mdev1:ep81" >add_link
*
* (1) would create the device node /dev/my_rxchannel
- * (2) would create the device node /dev/mdev0-ch0@ep_81
+ * (2) would create the device node /dev/mdev1-ep81
*/
static ssize_t store_add_link(struct most_aim_obj *aim_obj,
struct most_aim_attribute *attr,
@@ -961,7 +982,6 @@ static ssize_t store_add_link(struct most_aim_obj *aim_obj,
size_t max_len = min_t(size_t, len + 1, STRING_SIZE);
strlcpy(buffer, buf, max_len);
- strlcpy(aim_obj->add_link, buf, max_len);
ret = split_string(buffer, &mdev, &mdev_ch, &mdev_devnod);
if (ret)
@@ -998,13 +1018,6 @@ static ssize_t store_add_link(struct most_aim_obj *aim_obj,
static struct most_aim_attribute most_aim_attr_add_link =
__ATTR(add_link, S_IRUGO | S_IWUSR, show_add_link, store_add_link);
-static ssize_t show_remove_link(struct most_aim_obj *aim_obj,
- struct most_aim_attribute *attr,
- char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%s\n", aim_obj->remove_link);
-}
-
/**
* store_remove_link - store function for remove_link attribute
* @aim_obj: pointer to AIM object
@@ -1013,7 +1026,7 @@ static ssize_t show_remove_link(struct most_aim_obj *aim_obj,
* @len: buffer length
*
* Example:
- * echo -n -e "mdev0:ch0@ep_81\n" >remove_link
+ * echo "mdev0:ep81" >remove_link
*/
static ssize_t store_remove_link(struct most_aim_obj *aim_obj,
struct most_aim_attribute *attr,
@@ -1028,7 +1041,6 @@ static ssize_t store_remove_link(struct most_aim_obj *aim_obj,
size_t max_len = min_t(size_t, len + 1, STRING_SIZE);
strlcpy(buffer, buf, max_len);
- strlcpy(aim_obj->remove_link, buf, max_len);
ret = split_string(buffer, &mdev, &mdev_ch, NULL);
if (ret)
return ret;
@@ -1047,8 +1059,7 @@ static ssize_t store_remove_link(struct most_aim_obj *aim_obj,
}
static struct most_aim_attribute most_aim_attr_remove_link =
- __ATTR(remove_link, S_IRUGO | S_IWUSR, show_remove_link,
- store_remove_link);
+ __ATTR(remove_link, S_IWUSR, NULL, store_remove_link);
static struct attribute *most_aim_def_attrs[] = {
&most_aim_attr_add_link.attr,
@@ -1307,17 +1318,14 @@ _exit:
/**
* most_submit_mbo - submits an MBO to fifo
* @mbo: pointer to the MBO
- *
*/
-int most_submit_mbo(struct mbo *mbo)
+void most_submit_mbo(struct mbo *mbo)
{
- if (unlikely((!mbo) || (!mbo->context))) {
- pr_err("Bad MBO or missing channel reference\n");
- return -EINVAL;
- }
+ if (WARN_ONCE(!mbo || !mbo->context,
+ "bad mbo or missing channel reference\n"))
+ return;
nq_hdm_mbo(mbo);
- return 0;
}
EXPORT_SYMBOL_GPL(most_submit_mbo);
@@ -1741,9 +1749,6 @@ struct kobject *most_register_interface(struct most_interface *iface)
if (!name_suffix)
snprintf(channel_name, STRING_SIZE, "ch%d", i);
- else if (name_suffix[0] == '@')
- snprintf(channel_name, STRING_SIZE, "ch%d%s", i,
- name_suffix);
else
snprintf(channel_name, STRING_SIZE, "%s", name_suffix);