This patch adds the core's interface to configfs file.
Signed-off-by: Christian Gromm <christian.gr...@microchip.com>
---
v2:
v3:
v4:
drivers/staging/most/core.c | 142 ++++++++++++++++++++++++++++++++++++++++++++
drivers/staging/most/core.h | 16 ++++-
2 files changed, 157 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/most/core.c b/drivers/staging/most/core.c
index 3671482..0bdd24d 100644
--- a/drivers/staging/most/core.c
+++ b/drivers/staging/most/core.c
@@ -783,6 +783,127 @@ static ssize_t add_link_store(struct device_driver *drv,
return len;
}
+int most_set_cfg_buffer_size(char *mdev, char *mdev_ch, u16 val)
+{
+ struct most_channel *c = get_channel(mdev, mdev_ch);
+
+ if (!c)
+ return -ENODEV;
+ c->cfg.buffer_size = val;
+ return 0;
+}
+
+int most_set_cfg_subbuffer_size(char *mdev, char *mdev_ch, u16 val)
+{
+ struct most_channel *c = get_channel(mdev, mdev_ch);
+
+ if (!c)
+ return -ENODEV;
+ c->cfg.subbuffer_size = val;
+ return 0;
+}
+
+int most_set_cfg_dbr_size(char *mdev, char *mdev_ch, u16 val)
+{
+ struct most_channel *c = get_channel(mdev, mdev_ch);
+
+ if (!c)
+ return -ENODEV;
+ c->cfg.dbr_size = val;
+ return 0;
+}
+
+int most_set_cfg_num_buffers(char *mdev, char *mdev_ch, u16 val)
+{
+ struct most_channel *c = get_channel(mdev, mdev_ch);
+
+ if (!c)
+ return -ENODEV;
+ c->cfg.num_buffers = val;
+ return 0;
+}
+
+int most_set_cfg_datatype(char *mdev, char *mdev_ch, char *buf)
+{
+ int i;
+ struct most_channel *c = get_channel(mdev, mdev_ch);
+
+ if (!c)
+ return -ENODEV;
+ for (i = 0; i < ARRAY_SIZE(ch_data_type); i++) {
+ if (!strcmp(buf, ch_data_type[i].name)) {
+ c->cfg.data_type = ch_data_type[i].most_ch_data_type;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(ch_data_type))
+ pr_info("WARN: invalid attribute settings\n");
+ return 0;
+}
+
+int most_set_cfg_direction(char *mdev, char *mdev_ch, char *buf)
+{
+ struct most_channel *c = get_channel(mdev, mdev_ch);
+
+ if (!c)
+ return -ENODEV;
+ 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("Invalid direction\n");
+ return -ENODATA;
+ }
+ return 0;
+}
+
+int most_set_cfg_packets_xact(char *mdev, char *mdev_ch, u16 val)
+{
+ struct most_channel *c = get_channel(mdev, mdev_ch);
+
+ if (!c)
+ return -ENODEV;
+ c->cfg.packets_per_xact = val;
+ return 0;
+}
+
+int most_cfg_complete(char *comp_name)
+{
+ struct core_component *comp;
+
+ comp = match_component(comp_name);
+ if (!comp)
+ return -ENODEV;
+
+ return comp->cfg_complete();
+}
+
+int most_add_link(char *mdev, char *mdev_ch, char *comp_name, char *link_name,
+ char *comp_param)
+{
+ struct most_channel *c;
+ struct core_component *comp;
+ char buf[STRING_SIZE];
+
+ comp = match_component(comp_name);
+ if (!comp)
+ return -ENODEV;
+ if (!comp_param || *comp_param == 0) {
+ snprintf(buf, sizeof(buf), "%s-%s", mdev, mdev_ch);
+ comp_param = buf;
+ }
+ c = get_channel(mdev, mdev_ch);
+ if (!c)
+ return -ENODEV;
+
+ return link_channel_to_component(c, comp, link_name, comp_param);
+}
/**
* remove_link_store - store function for remove_link attribute
* @drv: device driver
@@ -825,6 +946,27 @@ static ssize_t remove_link_store(struct device_driver *drv,
return len;
}
+int most_remove_link(char *mdev, char *mdev_ch, char *comp_name)
+{
+ struct most_channel *c;
+ struct core_component *comp;
+
+ comp = match_component(comp_name);
+ if (!comp)
+ return -ENODEV;
+ c = get_channel(mdev, mdev_ch);
+ if (!c)
+ return -ENODEV;
+
+ if (comp->disconnect_channel(c->iface, c->channel_id))
+ return -EIO;
+ if (c->pipe0.comp == comp)
+ c->pipe0.comp = NULL;
+ if (c->pipe1.comp == comp)
+ c->pipe1.comp = NULL;
+ return 0;
+}
+
#define DRV_ATTR(_name) (&driver_attr_##_name.attr)
static DRIVER_ATTR_RO(links);
diff --git a/drivers/staging/most/core.h b/drivers/staging/most/core.h
index 025dd1d..12c5992 100644
--- a/drivers/staging/most/core.h
+++ b/drivers/staging/most/core.h
@@ -272,6 +272,7 @@ struct core_component {
int channel_idx);
int (*rx_completion)(struct mbo *mbo);
int (*tx_completion)(struct most_interface *iface, int channel_idx);
+ int (*cfg_complete)(void);
};
/**
@@ -319,5 +320,18 @@ int most_start_channel(struct most_interface *iface, int
channel_idx,
struct core_component *comp);
int most_stop_channel(struct most_interface *iface, int channel_idx,
struct core_component *comp);
-
+int __init configfs_init(void);
+int most_register_configfs_subsys(struct core_component *comp);
+void most_deregister_configfs_subsys(struct core_component *comp);
+int most_add_link(char *mdev, char *mdev_ch, char *comp_name, char *link_name,
+ char *comp_param);
+int most_remove_link(char *mdev, char *mdev_ch, char *comp_name);
+int most_set_cfg_buffer_size(char *mdev, char *mdev_ch, u16 val);
+int most_set_cfg_subbuffer_size(char *mdev, char *mdev_ch, u16 val);
+int most_set_cfg_dbr_size(char *mdev, char *mdev_ch, u16 val);
+int most_set_cfg_num_buffers(char *mdev, char *mdev_ch, u16 val);
+int most_set_cfg_datatype(char *mdev, char *mdev_ch, char *buf);
+int most_set_cfg_direction(char *mdev, char *mdev_ch, char *buf);
+int most_set_cfg_packets_xact(char *mdev, char *mdev_ch, u16 val);
+int most_cfg_complete(char *comp_name);
#endif /* MOST_CORE_H_ */
--
2.7.4
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