On 02/04/2014 01:57 PM, Andrea Merello wrote:
Sorry, my fault.. you had already reported me the iowrite16 vs
iowrite8 for anaparam3 issue, but I forgot to fix it :(
If you are reasonably sure that a 16bits-wide write is OK on the
rtl8187b hardware (In reference code I have here only 8bits are
written), then I agree applying your fix, and I will leave unchanged
my modifications.
Otherwise, if you are unsure, I will revert thing in the common
rtl818x struct (switching back to 8bit type) and I simply make a cast
on rtl8187se, or I will use an union if possible, so the rtl8187b
driver remains unchanged.
On the other hand, for the remaining issues with changed names for
bitfield (the XXXX_SHIFT), I wil vote to fix the rtl8187 driver:
That names IMHO are wrong (misleading) and while fixing them should
help avoid future confusion, the fix is trivial enough that I'm really
confident not to broke anything.
I had already sent a patch for it:
Somehow I missed this patch. Do you know if John Linville picked it up?
I'm not sure if the ANAPARAM3 register could handle a 16-bit write on an
RTL8187B. To be cautious, I wrote and have tested the attached patch using a
union. The patch includes a fix for an undefined symbol
(RTL818X_TX_CONF_HW_SEQNUM). With this patch my RTL8187SE and RTL8187B devices
both work.
Larry
Index: wireless-testing/drivers/net/wireless/rtl818x/rtl8187/dev.c
===================================================================
--- wireless-testing.orig/drivers/net/wireless/rtl818x/rtl8187/dev.c
+++ wireless-testing/drivers/net/wireless/rtl818x/rtl8187/dev.c
@@ -592,7 +592,7 @@ static void rtl8187_set_anaparam(struct
rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, anaparam2);
if (priv->is_rtl8187b)
- rtl818x_iowrite8(priv, &priv->map->ANAPARAM3, anaparam3);
+ rtl818x_iowrite8(priv, &priv->map->ANAPARAM3A, anaparam3);
reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE;
rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD,
@@ -949,7 +949,7 @@ static int rtl8187_start(struct ieee8021
rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
rtl818x_iowrite32(priv, &priv->map->TX_CONF,
- RTL818X_TX_CONF_HW_SEQNUM |
+ RTL818X_TX_CONF_SW_SEQNUM |
RTL818X_TX_CONF_DISREQQSIZE |
(RETRY_COUNT << 8 /* short retry limit */) |
(RETRY_COUNT << 0 /* long retry limit */) |
Index: wireless-testing/drivers/net/wireless/rtl818x/rtl818x.h
===================================================================
--- wireless-testing.orig/drivers/net/wireless/rtl818x/rtl818x.h
+++ wireless-testing/drivers/net/wireless/rtl818x/rtl818x.h
@@ -309,7 +309,10 @@ struct rtl818x_csr {
__le32 RDSAR; /* 0xe4 */
__le16 TID_AC_MAP; /* 0xe8 */
u8 reserved_20[4];
- __le16 ANAPARAM3; /* 0xee */
+ union {
+ __le16 ANAPARAM3; /* 0xee */
+ u8 ANAPARAM3A; /* for rtl8187 */
+ };
#define AC_PARAM_TXOP_LIMIT_SHIFT 16
#define AC_PARAM_ECW_MAX_SHIFT 12
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