2008-02-24 04:31:59

by Nick Kossifidis

[permalink] [raw]
Subject: [PATCH 7/8] ath5k: Minor code review to match regdumps


* Make some changes to follow register dumps.

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <[email protected]>

---
diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
index cd640ed..adcce6f 100644
--- a/drivers/net/wireless/ath5k/hw.c
+++ b/drivers/net/wireless/ath5k/hw.c
@@ -727,15 +727,23 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
/*
* Write some more initial register settings
*/
- if (ah->ah_version > AR5K_AR5211){ /* found on 5213+ */
+ if (ah->ah_version == AR5K_AR5212){
ath5k_hw_reg_write(ah, 0x0002a002, AR5K_PHY(11));

if (channel->hw_value == CHANNEL_G)
- ath5k_hw_reg_write(ah, 0x00f80d80, AR5K_PHY(83)); /* 0x00fc0ec0 */
+ if (ah->ah_mac_srev < AR5K_SREV_VER_AR2413) {
+ ath5k_hw_reg_write(ah, 0x00f80d80, AR5K_PHY(83));
+ } else if (ah->ah_mac_srev < AR5K_SREV_VER_AR2424) {
+ ath5k_hw_reg_write(ah, 0x00380140, AR5K_PHY(83));
+ } else if (ah->ah_mac_srev < AR5K_SREV_VER_AR2425) {
+ ath5k_hw_reg_write(ah, 0x00fc0ec0, AR5K_PHY(83));
+ } else {
+ /* 2425 */
+ ath5k_hw_reg_write(ah, 0x00fc0fc0, AR5K_PHY(83));
+ }
else
ath5k_hw_reg_write(ah, 0x00000000, AR5K_PHY(83));

- ath5k_hw_reg_write(ah, 0x000001b5, 0xa228); /* 0x000009b5 */
ath5k_hw_reg_write(ah, 0x000009b5, 0xa228);
ath5k_hw_reg_write(ah, 0x0000000f, 0x8060);
ath5k_hw_reg_write(ah, 0x00000000, 0xa254);
@@ -1019,6 +1027,8 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,

/*
* Set the 32MHz reference clock on 5212 phy clock sleep register
+ *
+ * TODO: Find out how to switch to external 32Khz clock to save power
*/
if (ah->ah_version == AR5K_AR5212) {
ath5k_hw_reg_write(ah, AR5K_PHY_SCR_32MHZ, AR5K_PHY_SCR);
@@ -1029,6 +1039,14 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
ath5k_hw_reg_write(ah, ah->ah_phy_spending, AR5K_PHY_SPENDING);
}

+ if (ah->ah_version == AR5K_AR5212) {
+ ath5k_hw_reg_write(ah, 0x000100aa, 0x8118);
+ ath5k_hw_reg_write(ah, 0x00003210, 0x811c);
+ ath5k_hw_reg_write(ah, 0x00000052, 0x8108);
+ if (ah->ah_mac_srev >= AR5K_SREV_VER_AR2413)
+ ath5k_hw_reg_write(ah, 0x00000004, 0x8120);
+ }
+
/*
* Disable beacons and reset the register
*/
@@ -2273,8 +2291,8 @@ void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
* Set simple BSSID mask on 5212
*/
if (ah->ah_version == AR5K_AR5212) {
- ath5k_hw_reg_write(ah, 0xfffffff, AR5K_BSS_IDM0);
- ath5k_hw_reg_write(ah, 0xfffffff, AR5K_BSS_IDM1);
+ ath5k_hw_reg_write(ah, 0xffffffff, AR5K_BSS_IDM0);
+ ath5k_hw_reg_write(ah, 0xffffffff, AR5K_BSS_IDM1);
}

/*
@@ -2419,6 +2437,8 @@ void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah)
{
ATH5K_TRACE(ah->ah_sc);
AR5K_REG_DISABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
+
+ /* TODO: ANI Support */
}

/*
@@ -2428,6 +2448,8 @@ void ath5k_hw_stop_pcu_recv(struct ath5k_hw *ah)
{
ATH5K_TRACE(ah->ah_sc);
AR5K_REG_ENABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
+
+ /* TODO: ANI Support */
}

/*




2008-02-28 22:50:56

by Luis R. Rodriguez

[permalink] [raw]
Subject: Re: [PATCH 7/8] ath5k: Minor code review to match regdumps

On Sat, Feb 23, 2008 at 11:31 PM, Nick Kossifidis <[email protected]> wrote:
>
> * Make some changes to follow register dumps.
>
> Changes-licensed-under: ISC
> Signed-off-by: Nick Kossifidis <[email protected]>
>
> ---
> diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
> index cd640ed..adcce6f 100644
> --- a/drivers/net/wireless/ath5k/hw.c
> +++ b/drivers/net/wireless/ath5k/hw.c
> @@ -727,15 +727,23 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
> /*
> * Write some more initial register settings
> */
> - if (ah->ah_version > AR5K_AR5211){ /* found on 5213+ */
> + if (ah->ah_version == AR5K_AR5212){

We should probably just move this to a helper. Will send a patch based on this.

Luis

2008-02-28 23:41:19

by Christoph Hellwig

[permalink] [raw]
Subject: Re: [PATCH 7/8] ath5k: Minor code review to match regdumps

On Thu, Feb 28, 2008 at 06:00:24PM -0500, Luis R. Rodriguez wrote:
> /*
> + * ath5k_hw_reset_ar5212 - reset helper for ar5212
> + *
> + * @ah: the &struct ath5k_hw
> + * @channel: the &ieee80211_channel
> + *
> + * This is a helper to ath5k_hw_reset() for AR5212.
> + */
> +static inline void ath5k_hw_reset_init_ar5212(struct ath5k_hw *ah,
> + struct ieee80211_channel *channel)

s/inline // please


2008-02-27 04:00:03

by Luis R. Rodriguez

[permalink] [raw]
Subject: Re: [PATCH 7/8] ath5k: Minor code review to match regdumps

On Sat, Feb 23, 2008 at 11:31 PM, Nick Kossifidis <[email protected]> wrote:
>
> * Make some changes to follow register dumps.
>
> Changes-licensed-under: ISC
> Signed-off-by: Nick Kossifidis <[email protected]>

Please run through checkpatch.

Luis

2008-02-29 00:02:31

by Luis R. Rodriguez

[permalink] [raw]
Subject: Re: [PATCH 7/8] ath5k: Minor code review to match regdumps

> On Thu, Feb 28, 2008 at 06:00:24PM -0500, Christoph Hellwig wrote:
> > /*
> > + * ath5k_hw_reset_ar5212 - reset helper for ar5212
> > + *
> > + * @ah: the &struct ath5k_hw
> > + * @channel: the &ieee80211_channel
> > + *
> > + * This is a helper to ath5k_hw_reset() for AR5212.
> > + */
> > +static inline void ath5k_hw_reset_init_ar5212(struct ath5k_hw *ah,
> > + struct ieee80211_channel *channel)
>
> s/inline // please

Sure, here it is.

Make some changes which mimic what we see in register dumps. Also,
lets move ar5212 initial settings out into a helper during reset
to make code more readible.

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <[email protected]>
Signed-off-by: Luis R. Rodriguez <[email protected]>
---
drivers/net/wireless/ath5k/hw.c | 66 +++++++++++++++++++++++++++++---------
1 files changed, 50 insertions(+), 16 deletions(-)

diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
index 6f69e46..b8e412c 100644
--- a/drivers/net/wireless/ath5k/hw.c
+++ b/drivers/net/wireless/ath5k/hw.c
@@ -589,6 +589,38 @@ static inline void ath5k_hw_write_rate_duration(struct ath5k_hw *ah,
}

/*
+ * ath5k_hw_reset_ar5212 - reset helper for ar5212
+ *
+ * @ah: the &struct ath5k_hw
+ * @channel: the &ieee80211_channel
+ *
+ * This is a helper to ath5k_hw_reset() for AR5212.
+ */
+static void ath5k_hw_reset_init_ar5212(struct ath5k_hw *ah,
+ struct ieee80211_channel *channel)
+{
+ ath5k_hw_reg_write(ah, 0x0002a002, AR5K_PHY(11));
+
+ if ((channel->hw_value & CHANNEL_MODES) == CHANNEL_G) {
+ if (ah->ah_mac_srev < AR5K_SREV_VER_AR2413)
+ ath5k_hw_reg_write(ah, 0x00f80d80, AR5K_PHY(83));
+ else if (ah->ah_mac_srev < AR5K_SREV_VER_AR2424)
+ ath5k_hw_reg_write(ah, 0x00380140, AR5K_PHY(83));
+ else if (ah->ah_mac_srev < AR5K_SREV_VER_AR2425)
+ ath5k_hw_reg_write(ah, 0x00fc0ec0, AR5K_PHY(83));
+ else
+ /* 2425 */
+ ath5k_hw_reg_write(ah, 0x00fc0fc0, AR5K_PHY(83));
+ } else
+ ath5k_hw_reg_write(ah, 0x00000000, AR5K_PHY(83));
+
+ ath5k_hw_reg_write(ah, 0x000009b5, 0xa228);
+ ath5k_hw_reg_write(ah, 0x0000000f, 0x8060);
+ ath5k_hw_reg_write(ah, 0x00000000, 0xa254);
+ ath5k_hw_reg_write(ah, 0x0000000e, AR5K_PHY_SCAL);
+}
+
+/*
* Main reset function
*/
int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
@@ -724,20 +756,8 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
/*
* Write some more initial register settings
*/
- if (ah->ah_version > AR5K_AR5211){ /* found on 5213+ */
- ath5k_hw_reg_write(ah, 0x0002a002, AR5K_PHY(11));
-
- if (channel->hw_value == CHANNEL_G)
- ath5k_hw_reg_write(ah, 0x00f80d80, AR5K_PHY(83)); /* 0x00fc0ec0 */
- else
- ath5k_hw_reg_write(ah, 0x00000000, AR5K_PHY(83));
-
- ath5k_hw_reg_write(ah, 0x000001b5, 0xa228); /* 0x000009b5 */
- ath5k_hw_reg_write(ah, 0x000009b5, 0xa228);
- ath5k_hw_reg_write(ah, 0x0000000f, 0x8060);
- ath5k_hw_reg_write(ah, 0x00000000, 0xa254);
- ath5k_hw_reg_write(ah, 0x0000000e, AR5K_PHY_SCAL);
- }
+ if (ah->ah_version == AR5K_AR5212)
+ ath5k_hw_reset_init_ar5212(ah, channel);

/* Fix for first revision of the RF5112 RF chipset */
if (ah->ah_radio >= AR5K_RF5112 &&
@@ -1015,6 +1035,8 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,

/*
* Set the 32MHz reference clock on 5212 phy clock sleep register
+ *
+ * TODO: Find out how to switch to external 32Khz clock to save power
*/
if (ah->ah_version == AR5K_AR5212) {
ath5k_hw_reg_write(ah, AR5K_PHY_SCR_32MHZ, AR5K_PHY_SCR);
@@ -1025,6 +1047,14 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
ath5k_hw_reg_write(ah, ah->ah_phy_spending, AR5K_PHY_SPENDING);
}

+ if (ah->ah_version == AR5K_AR5212) {
+ ath5k_hw_reg_write(ah, 0x000100aa, 0x8118);
+ ath5k_hw_reg_write(ah, 0x00003210, 0x811c);
+ ath5k_hw_reg_write(ah, 0x00000052, 0x8108);
+ if (ah->ah_mac_srev >= AR5K_SREV_VER_AR2413)
+ ath5k_hw_reg_write(ah, 0x00000004, 0x8120);
+ }
+
/*
* Disable beacons and reset the register
*/
@@ -2269,8 +2299,8 @@ void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
* Set simple BSSID mask on 5212
*/
if (ah->ah_version == AR5K_AR5212) {
- ath5k_hw_reg_write(ah, 0xfffffff, AR5K_BSS_IDM0);
- ath5k_hw_reg_write(ah, 0xfffffff, AR5K_BSS_IDM1);
+ ath5k_hw_reg_write(ah, 0xffffffff, AR5K_BSS_IDM0);
+ ath5k_hw_reg_write(ah, 0xffffffff, AR5K_BSS_IDM1);
}

/*
@@ -2415,6 +2445,8 @@ void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah)
{
ATH5K_TRACE(ah->ah_sc);
AR5K_REG_DISABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
+
+ /* TODO: ANI Support */
}

/*
@@ -2424,6 +2456,8 @@ void ath5k_hw_stop_pcu_recv(struct ath5k_hw *ah)
{
ATH5K_TRACE(ah->ah_sc);
AR5K_REG_ENABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
+
+ /* TODO: ANI Support */
}

/*
--
1.5.3.7


2008-03-07 17:21:59

by Luis R. Rodriguez

[permalink] [raw]
Subject: Re: [PATCH 7/8] ath5k: Minor code review to match regdumps

Make some changes which mimic what we see in register dumps.
This patch does not add a helper to ath5k_hw_reset(). It
does seem clear we need a re-shuffle around ath5k_hw_reset()
though as code in there is lengthy and already hitting
80-char limit. This can be dealt with later though.

Changes-licensed-under: ISC
Signed-off-by: Nick Kossifidis <[email protected]>
Signed-off-by: Luis R. Rodriguez <[email protected]>
---
drivers/net/wireless/ath5k/hw.c | 37 +++++++++++++++++++++++++++++++------
1 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath5k/hw.c b/drivers/net/wireless/ath5k/hw.c
index b275b1f..3c39960 100644
--- a/drivers/net/wireless/ath5k/hw.c
+++ b/drivers/net/wireless/ath5k/hw.c
@@ -724,15 +724,26 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
/*
* Write some more initial register settings
*/
- if (ah->ah_version > AR5K_AR5211){ /* found on 5213+ */
+ if (ah->ah_version == AR5K_AR5212) {
ath5k_hw_reg_write(ah, 0x0002a002, AR5K_PHY(11));

if (channel->hw_value == CHANNEL_G)
- ath5k_hw_reg_write(ah, 0x00f80d80, AR5K_PHY(83)); /* 0x00fc0ec0 */
+ if (ah->ah_mac_srev < AR5K_SREV_VER_AR2413)
+ ath5k_hw_reg_write(ah, 0x00f80d80,
+ AR5K_PHY(83));
+ else if (ah->ah_mac_srev < AR5K_SREV_VER_AR2424)
+ ath5k_hw_reg_write(ah, 0x00380140,
+ AR5K_PHY(83));
+ else if (ah->ah_mac_srev < AR5K_SREV_VER_AR2425)
+ ath5k_hw_reg_write(ah, 0x00fc0ec0,
+ AR5K_PHY(83));
+ else /* 2425 */
+ ath5k_hw_reg_write(ah, 0x00fc0fc0,
+ AR5K_PHY(83));
else
- ath5k_hw_reg_write(ah, 0x00000000, AR5K_PHY(83));
+ ath5k_hw_reg_write(ah, 0x00000000,
+ AR5K_PHY(83));

- ath5k_hw_reg_write(ah, 0x000001b5, 0xa228); /* 0x000009b5 */
ath5k_hw_reg_write(ah, 0x000009b5, 0xa228);
ath5k_hw_reg_write(ah, 0x0000000f, 0x8060);
ath5k_hw_reg_write(ah, 0x00000000, 0xa254);
@@ -1015,6 +1026,8 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,

/*
* Set the 32MHz reference clock on 5212 phy clock sleep register
+ *
+ * TODO: Find out how to switch to external 32Khz clock to save power
*/
if (ah->ah_version == AR5K_AR5212) {
ath5k_hw_reg_write(ah, AR5K_PHY_SCR_32MHZ, AR5K_PHY_SCR);
@@ -1025,6 +1038,14 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode,
ath5k_hw_reg_write(ah, ah->ah_phy_spending, AR5K_PHY_SPENDING);
}

+ if (ah->ah_version == AR5K_AR5212) {
+ ath5k_hw_reg_write(ah, 0x000100aa, 0x8118);
+ ath5k_hw_reg_write(ah, 0x00003210, 0x811c);
+ ath5k_hw_reg_write(ah, 0x00000052, 0x8108);
+ if (ah->ah_mac_srev >= AR5K_SREV_VER_AR2413)
+ ath5k_hw_reg_write(ah, 0x00000004, 0x8120);
+ }
+
/*
* Disable beacons and reset the register
*/
@@ -2269,8 +2290,8 @@ void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
* Set simple BSSID mask on 5212
*/
if (ah->ah_version == AR5K_AR5212) {
- ath5k_hw_reg_write(ah, 0xfffffff, AR5K_BSS_IDM0);
- ath5k_hw_reg_write(ah, 0xfffffff, AR5K_BSS_IDM1);
+ ath5k_hw_reg_write(ah, 0xffffffff, AR5K_BSS_IDM0);
+ ath5k_hw_reg_write(ah, 0xffffffff, AR5K_BSS_IDM1);
}

/*
@@ -2415,6 +2436,8 @@ void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah)
{
ATH5K_TRACE(ah->ah_sc);
AR5K_REG_DISABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
+
+ /* TODO: ANI Support */
}

/*
@@ -2424,6 +2447,8 @@ void ath5k_hw_stop_pcu_recv(struct ath5k_hw *ah)
{
ATH5K_TRACE(ah->ah_sc);
AR5K_REG_ENABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
+
+ /* TODO: ANI Support */
}

/*
--
1.5.2.5