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Subject[PATCH v2 14/16] wl1251: Add sysfs file tx_mgmt_frm_rate for setting rate
Date
This patch adds support for configuring reg domains.
Patch was extracted from Maemo 2.6.28 kernel.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
---
drivers/net/wireless/ti/wl1251/main.c | 152 +++++++++++++++++++++++++++++++++
1 file changed, 152 insertions(+)

diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
index 382dedf..42730b7 100644
--- a/drivers/net/wireless/ti/wl1251/main.c
+++ b/drivers/net/wireless/ti/wl1251/main.c
@@ -1377,6 +1377,147 @@ static const struct ieee80211_ops wl1251_ops = {
.get_survey = wl1251_op_get_survey,
};

+static ssize_t wl1251_sysfs_show_tx_mgmt_frm_rate(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct wl1251 *wl = dev_get_drvdata(dev);
+ ssize_t len;
+ int val;
+
+ /* FIXME: what's the maximum length of buf? page size?*/
+ len = 500;
+
+ switch (wl->tx_mgmt_frm_rate) {
+ /* skip 1 and 12 Mbps because they have same value 0x0a */
+ case RATE_2MBPS:
+ val = 20;
+ break;
+ case RATE_5_5MBPS:
+ val = 55;
+ break;
+ case RATE_11MBPS:
+ val = 110;
+ break;
+ case RATE_6MBPS:
+ val = 60;
+ break;
+ case RATE_9MBPS:
+ val = 90;
+ break;
+ case RATE_12MBPS:
+ val = 120;
+ break;
+ case RATE_18MBPS:
+ val = 180;
+ break;
+ case RATE_24MBPS:
+ val = 240;
+ break;
+ case RATE_36MBPS:
+ val = 360;
+ break;
+ case RATE_48MBPS:
+ val = 480;
+ break;
+ case RATE_54MBPS:
+ val = 540;
+ break;
+ default:
+ val = 10;
+ }
+
+ /* for 1 and 12 Mbps we have to check the modulation */
+ if (wl->tx_mgmt_frm_rate == RATE_1MBPS) {
+ switch (wl->tx_mgmt_frm_rate) {
+ case CCK_LONG:
+ val = 10;
+ break;
+ case OFDM:
+ val = 120;
+ break;
+ default:
+ val = 10;
+ break;
+ }
+ }
+ len = snprintf(buf, len, "%d", val);
+
+ return len;
+}
+
+static ssize_t wl1251_sysfs_store_tx_mgmt_frm_rate(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct wl1251 *wl = dev_get_drvdata(dev);
+ unsigned long res;
+ int ret;
+
+ ret = strict_strtoul(buf, 10, &res);
+
+ if (ret < 0) {
+ wl1251_warning("incorrect value written to tx_mgmt_frm_rate");
+ return 0;
+ }
+
+ switch (res) {
+ case 10:
+ wl->tx_mgmt_frm_rate = RATE_1MBPS;
+ wl->tx_mgmt_frm_mod = CCK_LONG;
+ break;
+ case 20:
+ wl->tx_mgmt_frm_rate = RATE_2MBPS;
+ wl->tx_mgmt_frm_mod = CCK_LONG;
+ break;
+ case 55:
+ wl->tx_mgmt_frm_rate = RATE_5_5MBPS;
+ wl->tx_mgmt_frm_mod = CCK_LONG;
+ break;
+ case 110:
+ wl->tx_mgmt_frm_rate = RATE_11MBPS;
+ wl->tx_mgmt_frm_mod = CCK_LONG;
+ break;
+ case 60:
+ wl->tx_mgmt_frm_rate = RATE_6MBPS;
+ wl->tx_mgmt_frm_mod = OFDM;
+ break;
+ case 90:
+ wl->tx_mgmt_frm_rate = RATE_9MBPS;
+ wl->tx_mgmt_frm_mod = OFDM;
+ break;
+ case 120:
+ wl->tx_mgmt_frm_rate = RATE_12MBPS;
+ wl->tx_mgmt_frm_mod = OFDM;
+ break;
+ case 180:
+ wl->tx_mgmt_frm_rate = RATE_18MBPS;
+ wl->tx_mgmt_frm_mod = OFDM;
+ break;
+ case 240:
+ wl->tx_mgmt_frm_rate = RATE_24MBPS;
+ wl->tx_mgmt_frm_mod = OFDM;
+ break;
+ case 360:
+ wl->tx_mgmt_frm_rate = RATE_36MBPS;
+ wl->tx_mgmt_frm_mod = OFDM;
+ break;
+ case 480:
+ wl->tx_mgmt_frm_rate = RATE_48MBPS;
+ wl->tx_mgmt_frm_mod = OFDM;
+ break;
+ case 540:
+ wl->tx_mgmt_frm_rate = RATE_54MBPS;
+ wl->tx_mgmt_frm_mod = OFDM;
+ break;
+ default:
+ wl1251_warning("incorrect value written to tx_mgmt_frm_rate");
+ return 0;
+ }
+
+ return count;
+}
+
static ssize_t wl1251_sysfs_show_bt_coex_mode(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -1445,6 +1586,10 @@ out:
return count;
}

+static DEVICE_ATTR(tx_mgmt_frm_rate, S_IRUGO | S_IWUSR,
+ wl1251_sysfs_show_tx_mgmt_frm_rate,
+ wl1251_sysfs_store_tx_mgmt_frm_rate);
+
static DEVICE_ATTR(bt_coex_mode, S_IRUGO | S_IWUSR,
wl1251_sysfs_show_bt_coex_mode,
wl1251_sysfs_store_bt_coex_mode);
@@ -1585,6 +1730,13 @@ int wl1251_init_ieee80211(struct wl1251 *wl)
}
dev_set_drvdata(&wl1251_device.dev, wl);

+ /* Create sysfs file tx_mgmt_frm_rate */
+ ret = device_create_file(&wl1251_device.dev,
+ &dev_attr_tx_mgmt_frm_rate);
+ if (ret < 0) {
+ wl1251_error("failed to create sysfs file tx_mgmt_frm_rate");
+ goto out;
+ }

/* Create sysfs file to control bt coex state */
ret = device_create_file(&wl1251_device.dev, &dev_attr_bt_coex_mode);
--
1.7.9.5
--
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