xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

wil6210: add support for PCIe D3hot in system suspend

Browse Source 
In order to preserve the connection in suspend/resume flow,
wil6210 host allows going to PCIe D3hot state in suspend,
instead of performing a full wil6210 device reset. This
requires the platform ability to initiate wakeup in case of
RX data. To check that, a new platform API is added.
In addition, add cfg80211 suspend/resume callbacks
implementation.

Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Maya Erez
2017-06-16 10:38:04 +03:00
committed by Kalle Valo
parent 5b49ee9f13
commit fe9ee51e6a
11 changed files with 604 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
drivers/net/wireless/ath/wil6210/debugfs.c
View File

@@ -509,6 +509,10 @@ static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
void *buf;
size_t ret;
if (test_bit(wil_status_suspending, wil_blob->wil->status) ||
test_bit(wil_status_suspended, wil_blob->wil->status))
return 0;
if (pos < 0)
return -EINVAL;
@@ -1600,6 +1604,49 @@ static const struct file_operations fops_fw_version = {
.llseek = seq_lseek,
};
/*---------suspend_stats---------*/
static ssize_t wil_write_suspend_stats(struct file *file,
const char __user *buf,
size_t len, loff_t *ppos)
{
struct wil6210_priv *wil = file->private_data;
memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats));
return len;
}
static ssize_t wil_read_suspend_stats(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wil6210_priv *wil = file->private_data;
static char text[400];
int n;
n = snprintf(text, sizeof(text),
"Suspend statistics:\n"
"successful suspends:%ld failed suspends:%ld\n"
"successful resumes:%ld failed resumes:%ld\n"
"rejected by host:%ld rejected by device:%ld\n",
wil->suspend_stats.successful_suspends,
wil->suspend_stats.failed_suspends,
wil->suspend_stats.successful_resumes,
wil->suspend_stats.failed_resumes,
wil->suspend_stats.rejected_by_host,
wil->suspend_stats.rejected_by_device);
n = min_t(int, n, sizeof(text));
return simple_read_from_buffer(user_buf, count, ppos, text, n);
}
static const struct file_operations fops_suspend_stats = {
.read = wil_read_suspend_stats,
.write = wil_write_suspend_stats,
.open = simple_open,
};
/*----------------*/
static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
struct dentry *dbg)
@@ -1652,6 +1699,7 @@ static const struct {
{"led_blink_time", 0644, &fops_led_blink_time},
{"fw_capabilities", 0444, &fops_fw_capabilities},
{"fw_version", 0444, &fops_fw_version},
{"suspend_stats", 0644, &fops_suspend_stats},
};
static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
@@ -1698,6 +1746,7 @@ static const struct dbg_off dbg_wil_off[] = {
WIL_FIELD(discovery_mode, 0644, doff_u8),
WIL_FIELD(chip_revision, 0444, doff_u8),
WIL_FIELD(abft_len, 0644, doff_u8),
WIL_FIELD(wakeup_trigger, 0644, doff_u8),
{},
};