2010-11-26 09:57:09

by Wojciech Dubowik

[permalink] [raw]
Subject: [PATCH v6 6/9] ath5k: Add a function to read chipset's MAC revision

From: Felix Fietkau <[email protected]>

Add bus dependent revision read function which is used to
determine chipset's MAC before hardware is initialized.

Signed-off-by: Felix Fietkau <[email protected]>
Signed-off-by: Wojciech Dubowik <[email protected]>
---
drivers/net/wireless/ath/ath5k/ath5k.h | 5 +++--
drivers/net/wireless/ath/ath5k/attach.c | 11 +++++++----
drivers/net/wireless/ath/ath5k/pci.c | 6 ++++++
3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
index 946e54a..917deb4 100644
--- a/drivers/net/wireless/ath/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath/ath5k/ath5k.h
@@ -1035,6 +1035,7 @@ struct ath5k_hw {
u32 ah_phy;
u32 ah_mac_srev;
u16 ah_mac_version;
+ u16 ah_mac_revision;
u16 ah_phy_revision;
u16 ah_radio_5ghz_revision;
u16 ah_radio_2ghz_revision;
@@ -1143,9 +1144,9 @@ void ath5k_hw_deinit(struct ath5k_hw *ah);
int ath5k_sysfs_register(struct ath5k_softc *sc);
void ath5k_sysfs_unregister(struct ath5k_softc *sc);

-/*Chip id helper function */
+/*Chip id helper functions */
const char *ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val);
-
+int ath5k_bus_read_srev(struct ath5k_hw *ah);

/* LED functions */
int ath5k_init_leds(struct ath5k_softc *sc);
diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
index fe7e6f1..9b5f6e4 100644
--- a/drivers/net/wireless/ath/ath5k/attach.c
+++ b/drivers/net/wireless/ath/ath5k/attach.c
@@ -128,7 +128,8 @@ int ath5k_hw_init(struct ath5k_softc *sc)
/*
* Find the mac version
*/
- srev = ath5k_hw_reg_read(ah, AR5K_SREV);
+ ath5k_bus_read_srev(ah);
+ srev = ah->ah_mac_srev;
if (srev < AR5K_SREV_AR5311)
ah->ah_version = AR5K_AR5210;
else if (srev < AR5K_SREV_AR5212)
@@ -136,6 +137,10 @@ int ath5k_hw_init(struct ath5k_softc *sc)
else
ah->ah_version = AR5K_AR5212;

+ /* Get the MAC revision */
+ ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
+ ah->ah_mac_revision = AR5K_REG_MS(srev, AR5K_SREV_REV);
+
/* Fill the ath5k_hw struct with the needed functions */
ret = ath5k_hw_init_desc_functions(ah);
if (ret)
@@ -146,9 +151,7 @@ int ath5k_hw_init(struct ath5k_softc *sc)
if (ret)
goto err;

- /* Get MAC, PHY and RADIO revisions */
- ah->ah_mac_srev = srev;
- ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
+ /* Get PHY and RADIO revisions */
ah->ah_phy_revision = ath5k_hw_reg_read(ah, AR5K_PHY_CHIP_ID) &
0xffffffff;
ah->ah_radio_5ghz_revision = ath5k_hw_radio_revision(ah,
diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c
index 3f26cf2..4eff891 100644
--- a/drivers/net/wireless/ath/ath5k/pci.c
+++ b/drivers/net/wireless/ath/ath5k/pci.c
@@ -100,6 +100,12 @@ bool ath5k_pci_eeprom_read(struct ath_common *common, u32 offset, u16 *data)
return -ETIMEDOUT;
}

+int ath5k_bus_read_srev(struct ath5k_hw *ah)
+{
+ ah->ah_mac_srev = ath5k_hw_reg_read(ah, AR5K_SREV);
+ return 0;
+}
+
/* Common ath_bus_opts structure */
static const struct ath_bus_ops ath_pci_bus_ops = {
.ath_bus_type = ATH_PCI,
--
1.7.1



2010-11-27 00:38:46

by Nick Kossifidis

[permalink] [raw]
Subject: Re: [PATCH v6 6/9] ath5k: Add a function to read chipset's MAC revision

2010/11/26 Wojciech Dubowik <[email protected]>:
> From: Felix Fietkau <[email protected]>
>
> Add bus dependent revision read function which is used to
> determine chipset's MAC before hardware is initialized.
>
> Signed-off-by: Felix Fietkau <[email protected]>
> Signed-off-by: Wojciech Dubowik <[email protected]>
> ---
>  drivers/net/wireless/ath/ath5k/ath5k.h  |    5 +++--
>  drivers/net/wireless/ath/ath5k/attach.c |   11 +++++++----
>  drivers/net/wireless/ath/ath5k/pci.c    |    6 ++++++
>  3 files changed, 16 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
> index 946e54a..917deb4 100644
> --- a/drivers/net/wireless/ath/ath5k/ath5k.h
> +++ b/drivers/net/wireless/ath/ath5k/ath5k.h
> @@ -1035,6 +1035,7 @@ struct ath5k_hw {
>        u32                     ah_phy;
>        u32                     ah_mac_srev;
>        u16                     ah_mac_version;
> +       u16                     ah_mac_revision;
>        u16                     ah_phy_revision;
>        u16                     ah_radio_5ghz_revision;
>        u16                     ah_radio_2ghz_revision;
> @@ -1143,9 +1144,9 @@ void ath5k_hw_deinit(struct ath5k_hw *ah);
>  int ath5k_sysfs_register(struct ath5k_softc *sc);
>  void ath5k_sysfs_unregister(struct ath5k_softc *sc);
>
> -/*Chip id helper function */
> +/*Chip id helper functions */
>  const char *ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val);
> -
> +int ath5k_bus_read_srev(struct ath5k_hw *ah);
>
>  /* LED functions */
>  int ath5k_init_leds(struct ath5k_softc *sc);
> diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
> index fe7e6f1..9b5f6e4 100644
> --- a/drivers/net/wireless/ath/ath5k/attach.c
> +++ b/drivers/net/wireless/ath/ath5k/attach.c
> @@ -128,7 +128,8 @@ int ath5k_hw_init(struct ath5k_softc *sc)
>        /*
>         * Find the mac version
>         */
> -       srev = ath5k_hw_reg_read(ah, AR5K_SREV);
> +       ath5k_bus_read_srev(ah);
> +       srev = ah->ah_mac_srev;
>        if (srev < AR5K_SREV_AR5311)
>                ah->ah_version = AR5K_AR5210;
>        else if (srev < AR5K_SREV_AR5212)
> @@ -136,6 +137,10 @@ int ath5k_hw_init(struct ath5k_softc *sc)
>        else
>                ah->ah_version = AR5K_AR5212;
>
> +       /* Get the MAC revision */
> +       ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
> +       ah->ah_mac_revision = AR5K_REG_MS(srev, AR5K_SREV_REV);
> +
>        /* Fill the ath5k_hw struct with the needed functions */
>        ret = ath5k_hw_init_desc_functions(ah);
>        if (ret)
> @@ -146,9 +151,7 @@ int ath5k_hw_init(struct ath5k_softc *sc)
>        if (ret)
>                goto err;
>
> -       /* Get MAC, PHY and RADIO revisions */
> -       ah->ah_mac_srev = srev;
> -       ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
> +       /* Get PHY and RADIO revisions */
>        ah->ah_phy_revision = ath5k_hw_reg_read(ah, AR5K_PHY_CHIP_ID) &
>                        0xffffffff;
>        ah->ah_radio_5ghz_revision = ath5k_hw_radio_revision(ah,
> diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c
> index 3f26cf2..4eff891 100644
> --- a/drivers/net/wireless/ath/ath5k/pci.c
> +++ b/drivers/net/wireless/ath/ath5k/pci.c
> @@ -100,6 +100,12 @@ bool ath5k_pci_eeprom_read(struct ath_common *common, u32 offset, u16 *data)
>        return -ETIMEDOUT;
>  }
>
> +int ath5k_bus_read_srev(struct ath5k_hw *ah)
> +{
> +       ah->ah_mac_srev = ath5k_hw_reg_read(ah, AR5K_SREV);
> +       return 0;
> +}
> +
>  /* Common ath_bus_opts structure */
>  static const struct ath_bus_ops ath_pci_bus_ops = {
>        .ath_bus_type = ATH_PCI,
> --
> 1.7.1
>

Why not naming that ath5k_hw_read_srev_pci and the other one
ath5k_hw_read_srev_ahb and name both ath5k_bus_read_srev ? Also please
at least follow the naming scheme, all hw related functions are
ath5k_hw_*.



--
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick

2010-11-27 00:43:41

by Nick Kossifidis

[permalink] [raw]
Subject: Re: [PATCH v6 6/9] ath5k: Add a function to read chipset's MAC revision

2010/11/27 Nick Kossifidis <[email protected]>:
> 2010/11/26 Wojciech Dubowik <[email protected]>:
>> From: Felix Fietkau <[email protected]>
>>
>> Add bus dependent revision read function which is used to
>> determine chipset's MAC before hardware is initialized.
>>
>> Signed-off-by: Felix Fietkau <[email protected]>
>> Signed-off-by: Wojciech Dubowik <[email protected]>
>> ---
>>  drivers/net/wireless/ath/ath5k/ath5k.h  |    5 +++--
>>  drivers/net/wireless/ath/ath5k/attach.c |   11 +++++++----
>>  drivers/net/wireless/ath/ath5k/pci.c    |    6 ++++++
>>  3 files changed, 16 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h
>> index 946e54a..917deb4 100644
>> --- a/drivers/net/wireless/ath/ath5k/ath5k.h
>> +++ b/drivers/net/wireless/ath/ath5k/ath5k.h
>> @@ -1035,6 +1035,7 @@ struct ath5k_hw {
>>        u32                     ah_phy;
>>        u32                     ah_mac_srev;
>>        u16                     ah_mac_version;
>> +       u16                     ah_mac_revision;
>>        u16                     ah_phy_revision;
>>        u16                     ah_radio_5ghz_revision;
>>        u16                     ah_radio_2ghz_revision;
>> @@ -1143,9 +1144,9 @@ void ath5k_hw_deinit(struct ath5k_hw *ah);
>>  int ath5k_sysfs_register(struct ath5k_softc *sc);
>>  void ath5k_sysfs_unregister(struct ath5k_softc *sc);
>>
>> -/*Chip id helper function */
>> +/*Chip id helper functions */
>>  const char *ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val);
>> -
>> +int ath5k_bus_read_srev(struct ath5k_hw *ah);
>>
>>  /* LED functions */
>>  int ath5k_init_leds(struct ath5k_softc *sc);
>> diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
>> index fe7e6f1..9b5f6e4 100644
>> --- a/drivers/net/wireless/ath/ath5k/attach.c
>> +++ b/drivers/net/wireless/ath/ath5k/attach.c
>> @@ -128,7 +128,8 @@ int ath5k_hw_init(struct ath5k_softc *sc)
>>        /*
>>         * Find the mac version
>>         */
>> -       srev = ath5k_hw_reg_read(ah, AR5K_SREV);
>> +       ath5k_bus_read_srev(ah);
>> +       srev = ah->ah_mac_srev;
>>        if (srev < AR5K_SREV_AR5311)
>>                ah->ah_version = AR5K_AR5210;
>>        else if (srev < AR5K_SREV_AR5212)
>> @@ -136,6 +137,10 @@ int ath5k_hw_init(struct ath5k_softc *sc)
>>        else
>>                ah->ah_version = AR5K_AR5212;
>>
>> +       /* Get the MAC revision */
>> +       ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
>> +       ah->ah_mac_revision = AR5K_REG_MS(srev, AR5K_SREV_REV);
>> +
>>        /* Fill the ath5k_hw struct with the needed functions */
>>        ret = ath5k_hw_init_desc_functions(ah);
>>        if (ret)
>> @@ -146,9 +151,7 @@ int ath5k_hw_init(struct ath5k_softc *sc)
>>        if (ret)
>>                goto err;
>>
>> -       /* Get MAC, PHY and RADIO revisions */
>> -       ah->ah_mac_srev = srev;
>> -       ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
>> +       /* Get PHY and RADIO revisions */
>>        ah->ah_phy_revision = ath5k_hw_reg_read(ah, AR5K_PHY_CHIP_ID) &
>>                        0xffffffff;
>>        ah->ah_radio_5ghz_revision = ath5k_hw_radio_revision(ah,
>> diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c
>> index 3f26cf2..4eff891 100644
>> --- a/drivers/net/wireless/ath/ath5k/pci.c
>> +++ b/drivers/net/wireless/ath/ath5k/pci.c
>> @@ -100,6 +100,12 @@ bool ath5k_pci_eeprom_read(struct ath_common *common, u32 offset, u16 *data)
>>        return -ETIMEDOUT;
>>  }
>>
>> +int ath5k_bus_read_srev(struct ath5k_hw *ah)
>> +{
>> +       ah->ah_mac_srev = ath5k_hw_reg_read(ah, AR5K_SREV);
>> +       return 0;
>> +}
>> +
>>  /* Common ath_bus_opts structure */
>>  static const struct ath_bus_ops ath_pci_bus_ops = {
>>        .ath_bus_type = ATH_PCI,
>> --
>> 1.7.1
>>
>
> Why not naming that ath5k_hw_read_srev_pci and the other one
> ath5k_hw_read_srev_ahb and name both ath5k_bus_read_srev ? Also please
> at least follow the naming scheme, all hw related functions are
> ath5k_hw_*.
>

Or at least make them all ath5k_<bus type>_* eg ath5k_ahb_read_srev
and ath5k_pci_read_srev, let's keep it clean...


--
GPG ID: 0xD21DB2DB
As you read this post global entropy rises. Have Fun ;-)
Nick