2013-05-07 20:04:42

by Xose Vazquez Perez

[permalink] [raw]
Subject: [PATCH 3.10-rc] wireless: rt2x00: rt2800: fix hardware antenna diversity for RT5370G

RT5370G has hardware RX antenna diversity like RT5390R.

based on 2012_03_22_RT5572_Linux_STA_v2.6.0.0_DPO

Cc: Ivo van Doorn <[email protected]>
Cc: Gertjan van Wingerde <[email protected]>
Cc: Helmut Schaa <[email protected]>
Cc: John W. Linville <[email protected]>
Cc: [email protected]
Cc: [email protected]
Tested-by: [email protected]
Signed-off-by: Xose Vazquez Perez <[email protected]>
---
drivers/net/wireless/rt2x00/rt2800.h | 3 ++-
drivers/net/wireless/rt2x00/rt2800lib.c | 8 +++++---
2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index a7630d5..6e84eee 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -89,7 +89,8 @@
#define REV_RT3090E 0x0211
#define REV_RT3390E 0x0211
#define REV_RT5390F 0x0502
-#define REV_RT5390R 0x1502
+#define REV_RT5370G 0x0503 /* hardware RX antenna diversity */
+#define REV_RT5390R 0x1502 /* hardware RX antenna diversity */
#define REV_RT5592C 0x0221

#define DEFAULT_RSSI_OFFSET 120
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index b52d70c..e202ec7 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4311,8 +4311,9 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
}

- /* This chip has hardware antenna diversity*/
- if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R)) {
+ /* These chips have hardware RX antenna diversity */
+ if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R) ||
+ rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5370G)) {
rt2800_bbp_write(rt2x00dev, 150, 0); /* Disable Antenna Software OFDM */
rt2800_bbp_write(rt2x00dev, 151, 0); /* Disable Antenna Software CCK */
rt2800_bbp_write(rt2x00dev, 154, 0); /* Clear previously selected antenna */
@@ -5554,7 +5555,8 @@ static int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
rt2x00dev->default_ant.rx = ANTENNA_A;
}

- if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R)) {
+ if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R) ||
+ rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5370G)) {
rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY; /* Unused */
rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY; /* Unused */
}
--
1.7.11.7



2013-05-07 22:30:26

by Gertjan van Wingerde

[permalink] [raw]
Subject: Re: [PATCH 3.10-rc] wireless: rt2x00: rt2800: fix hardware antenna diversity for RT5370G

Hi Xose,

Sent from my iPad

On 7 mei 2013, at 22:03, Xose Vazquez Perez <[email protected]> wrote:

> RT5370G has hardware RX antenna diversity like RT5390R.
>
> based on 2012_03_22_RT5572_Linux_STA_v2.6.0.0_DPO

I'll check this patch tomorrow, when I get back home.

In the meantime some style related comments below.

>
> Cc: Ivo van Doorn <[email protected]>
> Cc: Gertjan van Wingerde <[email protected]>
> Cc: Helmut Schaa <[email protected]>
> Cc: John W. Linville <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Tested-by: [email protected]
> Signed-off-by: Xose Vazquez Perez <[email protected]>
> ---
> drivers/net/wireless/rt2x00/rt2800.h | 3 ++-
> drivers/net/wireless/rt2x00/rt2800lib.c | 8 +++++---
> 2 files changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
> index a7630d5..6e84eee 100644
> --- a/drivers/net/wireless/rt2x00/rt2800.h
> +++ b/drivers/net/wireless/rt2x00/rt2800.h
> @@ -89,7 +89,8 @@
> #define REV_RT3090E 0x0211
> #define REV_RT3390E 0x0211
> #define REV_RT5390F 0x0502
> -#define REV_RT5390R 0x1502
> +#define REV_RT5370G 0x0503 /* hardware RX antenna diversity */
> +#define REV_RT5390R 0x1502 /* hardware RX antenna diversity */
> #define REV_RT5592C 0x0221

Please don't the comments to the chipset revision definitions. These macros are usually used all over the place; there is no need to specify this here.

>
> #define DEFAULT_RSSI_OFFSET 120
> diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
> index b52d70c..e202ec7 100644
> --- a/drivers/net/wireless/rt2x00/rt2800lib.c
> +++ b/drivers/net/wireless/rt2x00/rt2800lib.c
> @@ -4311,8 +4311,9 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
> rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
> }
>
> - /* This chip has hardware antenna diversity*/
> - if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R)) {
> + /* These chips have hardware RX antenna diversity */
> + if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R) ||
> + rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5370G)) {
> rt2800_bbp_write(rt2x00dev, 150, 0); /* Disable Antenna Software OFDM */
> rt2800_bbp_write(rt2x00dev, 151, 0); /* Disable Antenna Software CCK */
> rt2800_bbp_write(rt2x00dev, 154, 0); /* Clear previously selected antenna */

With respect to the comment change: are you sure this is only about RX antenna diversity?

Also, I'm wondering if the change to the if condition brings us everything that is wanted. Checking the same chipset for different minimal revisions doesn't make a whole lot of sense to me.
Sure, you are fixing later RT5370 revisions here, but may be botching up early RT5390 revisions here at the same time

> @@ -5554,7 +5555,8 @@ static int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
> rt2x00dev->default_ant.rx = ANTENNA_A;
> }
>
> - if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R)) {
> + if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R) ||
> + rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5370G)) {
> rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY; /* Unused */
> rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY; /* Unused */
> }

The same comment on the if conditions apply here.

---
Gertjan

2013-05-07 21:00:33

by Jakub Kicinski

[permalink] [raw]
Subject: Re: [rt2x00-users] [PATCH 3.10-rc] wireless: rt2x00: rt2800: fix hardware antenna diversity for RT5370G

Hi...

seems like you have not addressed this patch directly to John, which I
think you should do [1].

[1] http://wireless.kernel.org/en/developers/Documentation/SubmittingPatches

On Tue, 7 May 2013 22:03:30 +0200, Xose Vazquez Perez wrote:
>RT5370G has hardware RX antenna diversity like RT5390R.
>
>based on 2012_03_22_RT5572_Linux_STA_v2.6.0.0_DPO

Note that this is not the latest vendor driver for RT5572, hw antenna
diversity didn't change though, so the logic seems correct.

>Cc: Ivo van Doorn <[email protected]>
>Cc: Gertjan van Wingerde <[email protected]>
>Cc: Helmut Schaa <[email protected]>
>Cc: John W. Linville <[email protected]>
>Cc: [email protected]
>Cc: [email protected]
>Tested-by: [email protected]
>Signed-off-by: Xose Vazquez Perez <[email protected]>
>---
> drivers/net/wireless/rt2x00/rt2800.h | 3 ++-
> drivers/net/wireless/rt2x00/rt2800lib.c | 8 +++++---
> 2 files changed, 7 insertions(+), 4 deletions(-)
>
>diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
>index a7630d5..6e84eee 100644
>--- a/drivers/net/wireless/rt2x00/rt2800.h
>+++ b/drivers/net/wireless/rt2x00/rt2800.h
>@@ -89,7 +89,8 @@
> #define REV_RT3090E 0x0211
> #define REV_RT3390E 0x0211
> #define REV_RT5390F 0x0502
>-#define REV_RT5390R 0x1502
>+#define REV_RT5370G 0x0503 /* hardware RX antenna diversity */
>+#define REV_RT5390R 0x1502 /* hardware RX antenna diversity */

Line > 80 chars. hardware -> hw should be enough?

> #define REV_RT5592C 0x0221
>
> #define DEFAULT_RSSI_OFFSET 120
>diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
>index b52d70c..e202ec7 100644
>--- a/drivers/net/wireless/rt2x00/rt2800lib.c
>+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
>@@ -4311,8 +4311,9 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
> rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
> }
>
>- /* This chip has hardware antenna diversity*/
>- if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R)) {
>+ /* These chips have hardware RX antenna diversity */
>+ if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R) ||
>+ rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5370G)) {

Indentation of conditions seems wrong... Please run
checkpatch.pl --strict on your changes.

Thanks for sending the patch! (:

-- Kuba

2013-06-02 15:38:15

by Jakub Kicinski

[permalink] [raw]
Subject: Re: [rt2x00-users] [PATCH 3.10-rc] wireless: rt2x00: rt2800: fix hardware antenna diversity for RT5370G

Hi!

Any progress on this patch?

-- Kuba

On Wed, 8 May 2013 00:30:22 +0200, Gertjan van Wingerde wrote:
> Hi Xose,
>
> Sent from my iPad
>
> On 7 mei 2013, at 22:03, Xose Vazquez Perez <[email protected]> wrote:
>
> > RT5370G has hardware RX antenna diversity like RT5390R.
> >
> > based on 2012_03_22_RT5572_Linux_STA_v2.6.0.0_DPO
>
> I'll check this patch tomorrow, when I get back home.
>
> In the meantime some style related comments below.
>
> >
> > Cc: Ivo van Doorn <[email protected]>
> > Cc: Gertjan van Wingerde <[email protected]>
> > Cc: Helmut Schaa <[email protected]>
> > Cc: John W. Linville <[email protected]>
> > Cc: [email protected]
> > Cc: [email protected]
> > Tested-by: [email protected]
> > Signed-off-by: Xose Vazquez Perez <[email protected]>
> > ---
> > drivers/net/wireless/rt2x00/rt2800.h | 3 ++-
> > drivers/net/wireless/rt2x00/rt2800lib.c | 8 +++++---
> > 2 files changed, 7 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
> > index a7630d5..6e84eee 100644
> > --- a/drivers/net/wireless/rt2x00/rt2800.h
> > +++ b/drivers/net/wireless/rt2x00/rt2800.h
> > @@ -89,7 +89,8 @@
> > #define REV_RT3090E 0x0211
> > #define REV_RT3390E 0x0211
> > #define REV_RT5390F 0x0502
> > -#define REV_RT5390R 0x1502
> > +#define REV_RT5370G 0x0503 /* hardware RX antenna diversity */
> > +#define REV_RT5390R 0x1502 /* hardware RX antenna diversity */
> > #define REV_RT5592C 0x0221
>
> Please don't the comments to the chipset revision definitions. These macros are usually used all over the place; there is no need to specify this here.
>
> >
> > #define DEFAULT_RSSI_OFFSET 120
> > diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
> > index b52d70c..e202ec7 100644
> > --- a/drivers/net/wireless/rt2x00/rt2800lib.c
> > +++ b/drivers/net/wireless/rt2x00/rt2800lib.c
> > @@ -4311,8 +4311,9 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
> > rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
> > }
> >
> > - /* This chip has hardware antenna diversity*/
> > - if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R)) {
> > + /* These chips have hardware RX antenna diversity */
> > + if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R) ||
> > + rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5370G)) {
> > rt2800_bbp_write(rt2x00dev, 150, 0); /* Disable Antenna Software OFDM */
> > rt2800_bbp_write(rt2x00dev, 151, 0); /* Disable Antenna Software CCK */
> > rt2800_bbp_write(rt2x00dev, 154, 0); /* Clear previously selected antenna */
>
> With respect to the comment change: are you sure this is only about RX antenna diversity?
>
> Also, I'm wondering if the change to the if condition brings us everything that is wanted. Checking the same chipset for different minimal revisions doesn't make a whole lot of sense to me.
> Sure, you are fixing later RT5370 revisions here, but may be botching up early RT5390 revisions here at the same time
>
> > @@ -5554,7 +5555,8 @@ static int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
> > rt2x00dev->default_ant.rx = ANTENNA_A;
> > }
> >
> > - if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R)) {
> > + if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R) ||
> > + rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5370G)) {
> > rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY; /* Unused */
> > rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY; /* Unused */
> > }
>
> The same comment on the if conditions apply here.
>
> ---
> Gertjan
> _______________________________________________
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