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authorShahar Levi <shahar_levi@ti.com>2011-04-11 16:41:46 +0400
committerLuciano Coelho <coelho@ti.com>2011-05-02 11:26:06 +0400
commitff86843dfbb368766d0aecd0147821d9a2b60edb (patch)
tree529886d8567de0a766ade345aca6f043701ad2d6 /drivers/net/wireless/wl12xx/acx.c
parentcb5ae0530e0e2af86d128ce758645b6b4a9132e1 (diff)
downloadlinux-ff86843dfbb368766d0aecd0147821d9a2b60edb.tar.xz
wl12xx: FM WLAN coexistence
Add support to FM WLAN coexistence (STA only). Some WiFi harmonics may interfere with FM operation, to avoid this problem special coexistence techniques are activated around some FM frequencies. Signed-off-by: Shahar Levi <shahar_levi@ti.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/acx.c')
-rw-r--r--drivers/net/wireless/wl12xx/acx.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/acx.c b/drivers/net/wireless/wl12xx/acx.c
index a5c9c0aff83f..8a39d1e40a68 100644
--- a/drivers/net/wireless/wl12xx/acx.c
+++ b/drivers/net/wireless/wl12xx/acx.c
@@ -1626,3 +1626,43 @@ out:
kfree(acx);
return ret;
}
+
+int wl1271_acx_fm_coex(struct wl1271 *wl)
+{
+ struct wl1271_acx_fm_coex *acx;
+ int ret;
+
+ wl1271_debug(DEBUG_ACX, "acx fm coex setting");
+
+ acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+ if (!acx) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ acx->enable = wl->conf.fm_coex.enable;
+ acx->swallow_period = wl->conf.fm_coex.swallow_period;
+ acx->n_divider_fref_set_1 = wl->conf.fm_coex.n_divider_fref_set_1;
+ acx->n_divider_fref_set_2 = wl->conf.fm_coex.n_divider_fref_set_2;
+ acx->m_divider_fref_set_1 =
+ cpu_to_le16(wl->conf.fm_coex.m_divider_fref_set_1);
+ acx->m_divider_fref_set_2 =
+ cpu_to_le16(wl->conf.fm_coex.m_divider_fref_set_2);
+ acx->coex_pll_stabilization_time =
+ cpu_to_le32(wl->conf.fm_coex.coex_pll_stabilization_time);
+ acx->ldo_stabilization_time =
+ cpu_to_le16(wl->conf.fm_coex.ldo_stabilization_time);
+ acx->fm_disturbed_band_margin =
+ wl->conf.fm_coex.fm_disturbed_band_margin;
+ acx->swallow_clk_diff = wl->conf.fm_coex.swallow_clk_diff;
+
+ ret = wl1271_cmd_configure(wl, ACX_FM_COEX_CFG, acx, sizeof(*acx));
+ if (ret < 0) {
+ wl1271_warning("acx fm coex setting failed: %d", ret);
+ goto out;
+ }
+
+out:
+ kfree(acx);
+ return ret;
+}