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qcacld-3.0: Implement GET_DISABLE_CHANNEL_LIST driver command

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Propagation from prima to qcacld-3.0

Implement GET_DISABLE_CHANNEL_LIST driver command to get disable
channel list programed by SET_DISABLE_CHANNEL_LIST driver command.

Change-Id: Ib741e1cd23cef105314325aaec86feb50f36a181
CRs-Fixed: 2206336
This commit is contained in:
Ashish Kumar Dhanotiya
2018-03-15 15:51:25 +05:30
committed by Gerrit - the friendly Code Review server
parent 41dbf327c7
commit 2853ba04f7
1 changed files with 71 additions and 0 deletions
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71
core/hdd/src/wlan_hdd_ioctl.c
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@@ -7170,6 +7170,67 @@ static int drv_cmd_set_disable_chan_list(struct hdd_adapter *adapter,
{
return hdd_parse_disable_chan_cmd(adapter, command);
}
/**
* hdd_get_disable_ch_list() - get disable channel list
* @hdd_ctx: hdd context
* @buf: buffer to hold disable channel list
* @buf_len: buffer length
*
* Return: length of data copied to buf
*/
static int hdd_get_disable_ch_list(struct hdd_context *hdd_ctx, uint8_t *buf,
uint32_t buf_len)
{
struct hdd_cache_channel_info *ch_list;
unsigned char i, num_ch;
int len = 0;
qdf_mutex_acquire(&hdd_ctx->cache_channel_lock);
if (hdd_ctx->original_channels &&
hdd_ctx->original_channels->num_channels &&
hdd_ctx->original_channels->channel_info) {
num_ch = hdd_ctx->original_channels->num_channels;
len = scnprintf(buf, buf_len, "%s %hhu",
"GET_DISABLE_CHANNEL_LIST", num_ch);
ch_list = hdd_ctx->original_channels->channel_info;
for (i = 0; (i < num_ch) && (len < buf_len - 1); i++) {
len += scnprintf(buf + len, buf_len - len,
" %d", ch_list[i].channel_num);
}
}
qdf_mutex_release(&hdd_ctx->cache_channel_lock);
return len;
}
static int drv_cmd_get_disable_chan_list(struct hdd_adapter *adapter,
struct hdd_context *hdd_ctx,
uint8_t *command,
uint8_t command_len,
struct hdd_priv_data *priv_data)
{
char extra[512] = {0};
int max_len, copied_length;
hdd_debug("Received Command to get disable Channels list");
max_len = QDF_MIN(priv_data->total_len, sizeof(extra));
copied_length = hdd_get_disable_ch_list(hdd_ctx, extra, max_len);
if (copied_length == 0) {
hdd_err("disable channel list is not yet programmed");
return -EINVAL;
}
if (copy_to_user(priv_data->buf, &extra, copied_length + 1)) {
hdd_err("failed to copy data to user buffer");
return -EFAULT;
}
hdd_debug("data:%s", extra);
return 0;
}
#else
static int drv_cmd_set_disable_chan_list(struct hdd_adapter *adapter,
@@ -7184,6 +7245,15 @@ static int drv_cmd_set_disable_chan_list(struct hdd_adapter *adapter,
void wlan_hdd_free_cache_channels(struct hdd_context *hdd_ctx)
{
}
static int drv_cmd_get_disable_chan_list(struct hdd_adapter *adapter,
struct hdd_context *hdd_ctx,
uint8_t *command,
uint8_t command_len,
struct hdd_priv_data *priv_data)
{
return 0;
}
#endif
/*
* The following table contains all supported WLAN HDD
@@ -7299,6 +7369,7 @@ static const struct hdd_drv_cmd hdd_drv_cmds[] = {
{"SETANTENNAMODE", drv_cmd_set_antenna_mode, true},
{"GETANTENNAMODE", drv_cmd_get_antenna_mode, false},
{"SET_DISABLE_CHANNEL_LIST", drv_cmd_set_disable_chan_list, true},
{"GET_DISABLE_CHANNEL_LIST", drv_cmd_get_disable_chan_list, false},
{"STOP", drv_cmd_dummy, false},
/* Deprecated commands */
{"RXFILTER-START", drv_cmd_dummy, false},