[PATCH] zd1211rw: rework band edge patching

This change allows RF drivers to provide their own 6M band edge patching
implementation, while providing a generic implementation shared by most
currently supported RF's.

The upcoming ZD1211B/AL7230B code will use this to define its own
patching function, which is different from the other RF configurations.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 12 insertions, 4 deletions

diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c
index e2cfdda20a0f..95b4a2a26707 100644
--- a/drivers/net/wireless/zd1211rw/zd_chip.c
+++ b/drivers/net/wireless/zd1211rw/zd_chip.c
@@ -615,16 +615,24 @@ static int patch_cr157(struct zd_chip *chip)
  * Vendor driver says: for FCC regulation, enabled per HWFeature 6M band edge
  * bit (for AL2230, AL2230S)
  */
-static int patch_6m_band_edge(struct zd_chip *chip, int channel)
+static int patch_6m_band_edge(struct zd_chip *chip, u8 channel)
+{
+        ZD_ASSERT(mutex_is_locked(&chip->mutex));
+        if (!chip->patch_6m_band_edge)
+                return 0;
+
+        return zd_rf_patch_6m_band_edge(&chip->rf, channel);
+}
+
+/* Generic implementation of 6M band edge patching, used by most RFs via
+ * zd_rf_generic_patch_6m() */
+int zd_chip_generic_patch_6m_band(struct zd_chip *chip, int channel)
 {
         struct zd_ioreq16 ioreqs[] = {
                 { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
                 { CR47,  0x1e },
         };
 
-        if (!chip->patch_6m_band_edge || !chip->rf.patch_6m_band_edge)
-                return 0;
-
         /* FIXME: Channel 11 is not the edge for all regulatory domains. */
         if (channel == 1 || channel == 11)
                 ioreqs[0].value = 0x12;