2009-06-12 02:03:36

by Andrey Yurovsky

[permalink] [raw]
Subject: [PATCH] libertas: remove ps_supported flag, use fwcapinfo

Power save support depends on the firmware capabilities rather than the
card's hardware interface. Use the FW_CAPINFO_PS bit in the firmware
capabilities mask throughout the driver in place of the redundant
ps_supported flag and don't make decisions about PS support in the
interface drivers (with the exception of a special case in the USB
driver).

Signed-off-by: Andrey Yurovsky <[email protected]>
---
drivers/net/wireless/libertas/dev.h | 1 -
drivers/net/wireless/libertas/if_cs.c | 3 ---
drivers/net/wireless/libertas/if_sdio.c | 3 ---
drivers/net/wireless/libertas/if_spi.c | 1 -
drivers/net/wireless/libertas/if_usb.c | 2 +-
drivers/net/wireless/libertas/wext.c | 2 +-
6 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index f9ec69e..578c697 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -260,7 +260,6 @@ struct lbs_private {
u16 psmode; /* Wlan802_11PowermodeCAM=disable
Wlan802_11PowermodeMAX_PSP=enable */
u32 psstate;
- char ps_supported;
u8 needtowakeup;

struct assoc_request * pending_assoc_req;
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index 2a5b083..f658fd6 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -933,9 +933,6 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
goto out3;
}

- /* The firmware for the CF card supports powersave */
- priv->ps_supported = 1;
-
ret = 0;
goto out;

diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index 8cdb88c..89396a7 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -1039,9 +1039,6 @@ static int if_sdio_probe(struct sdio_func *func,
if (ret)
goto err_activate_card;

- if (priv->fwcapinfo & FW_CAPINFO_PS)
- priv->ps_supported = 1;
-
out:
lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);

diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index f8c2898..2045ac3 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -1117,7 +1117,6 @@ static int __devinit if_spi_probe(struct spi_device *spi)
priv->card = card;
priv->hw_host_to_card = if_spi_host_to_card;
priv->fw_ready = 1;
- priv->ps_supported = 1;

/* Initialize interrupt handling stuff. */
card->run_thread = 1;
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index ea3dc03..04da68e 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -188,7 +188,7 @@ static void if_usb_setup_firmware(struct lbs_private *priv)
} else {
if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) {
lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
- priv->ps_supported = 1;
+ priv->fwcapinfo &= ~FW_CAPINFO_PS;
} else {
/* The versions which boot up this way don't seem to
work even if we set it to the command interrupt */
diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
index 8bc1907..e96451c 100644
--- a/drivers/net/wireless/libertas/wext.c
+++ b/drivers/net/wireless/libertas/wext.c
@@ -712,7 +712,7 @@ static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,

lbs_deb_enter(LBS_DEB_WEXT);

- if (!priv->ps_supported) {
+ if (!(priv->fwcapinfo & FW_CAPINFO_PS)) {
if (vwrq->disabled)
return 0;
else
--
1.5.6.3



2009-06-16 20:18:47

by Andrey Yurovsky

[permalink] [raw]
Subject: [PATCH v2] libertas: remove ps_supported flag, use fwcapinfo

Power save support depends on the firmware capabilities rather than the
card's hardware interface. Use the FW_CAPINFO_PS bit in the firmware
capabilities mask throughout the driver in place of the redundant
ps_supported flag and don't make decisions about PS support in the
interface drivers (with the exception of a special case in the USB
driver).

V2: put the USB special case in the right place.

Signed-off-by: Andrey Yurovsky <[email protected]>
---
drivers/net/wireless/libertas/dev.h | 1 -
drivers/net/wireless/libertas/if_cs.c | 3 ---
drivers/net/wireless/libertas/if_sdio.c | 3 ---
drivers/net/wireless/libertas/if_spi.c | 1 -
drivers/net/wireless/libertas/if_usb.c | 3 ++-
drivers/net/wireless/libertas/wext.c | 2 +-
6 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index f9ec69e..578c697 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -260,7 +260,6 @@ struct lbs_private {
u16 psmode; /* Wlan802_11PowermodeCAM=disable
Wlan802_11PowermodeMAX_PSP=enable */
u32 psstate;
- char ps_supported;
u8 needtowakeup;

struct assoc_request * pending_assoc_req;
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index 2a5b083..f658fd6 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -933,9 +933,6 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
goto out3;
}

- /* The firmware for the CF card supports powersave */
- priv->ps_supported = 1;
-
ret = 0;
goto out;

diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index 8cdb88c..89396a7 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -1039,9 +1039,6 @@ static int if_sdio_probe(struct sdio_func *func,
if (ret)
goto err_activate_card;

- if (priv->fwcapinfo & FW_CAPINFO_PS)
- priv->ps_supported = 1;
-
out:
lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);

diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index 923ed58..956566b 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -1118,7 +1118,6 @@ static int __devinit if_spi_probe(struct spi_device *spi)
priv->card = card;
priv->hw_host_to_card = if_spi_host_to_card;
priv->fw_ready = 1;
- priv->ps_supported = 1;

/* Initialize interrupt handling stuff. */
card->run_thread = 1;
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index ea3dc03..16653c1 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -185,13 +185,14 @@ static void if_usb_setup_firmware(struct lbs_private *priv)
wake_method.action = cpu_to_le16(CMD_ACT_GET);
if (lbs_cmd_with_response(priv, CMD_802_11_FW_WAKE_METHOD, &wake_method)) {
lbs_pr_info("Firmware does not seem to support PS mode\n");
+ priv->fwcapinfo &= ~FW_CAPINFO_PS;
} else {
if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) {
lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
- priv->ps_supported = 1;
} else {
/* The versions which boot up this way don't seem to
work even if we set it to the command interrupt */
+ priv->fwcapinfo &= ~FW_CAPINFO_PS;
lbs_pr_info("Firmware doesn't wake via command interrupt; disabling PS mode\n");
}
}
diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
index 8bc1907..e96451c 100644
--- a/drivers/net/wireless/libertas/wext.c
+++ b/drivers/net/wireless/libertas/wext.c
@@ -712,7 +712,7 @@ static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,

lbs_deb_enter(LBS_DEB_WEXT);

- if (!priv->ps_supported) {
+ if (!(priv->fwcapinfo & FW_CAPINFO_PS)) {
if (vwrq->disabled)
return 0;
else
--
1.5.6.3


2009-06-16 20:41:42

by Dan Williams

[permalink] [raw]
Subject: Re: [PATCH v2] libertas: remove ps_supported flag, use fwcapinfo

On Tue, 2009-06-16 at 13:20 -0700, Andrey Yurovsky wrote:
> Power save support depends on the firmware capabilities rather than the
> card's hardware interface. Use the FW_CAPINFO_PS bit in the firmware
> capabilities mask throughout the driver in place of the redundant
> ps_supported flag and don't make decisions about PS support in the
> interface drivers (with the exception of a special case in the USB
> driver).
>
> V2: put the USB special case in the right place.
>
> Signed-off-by: Andrey Yurovsky <[email protected]>

Acked-by: Dan Williams <[email protected]>

> ---
> drivers/net/wireless/libertas/dev.h | 1 -
> drivers/net/wireless/libertas/if_cs.c | 3 ---
> drivers/net/wireless/libertas/if_sdio.c | 3 ---
> drivers/net/wireless/libertas/if_spi.c | 1 -
> drivers/net/wireless/libertas/if_usb.c | 3 ++-
> drivers/net/wireless/libertas/wext.c | 2 +-
> 6 files changed, 3 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
> index f9ec69e..578c697 100644
> --- a/drivers/net/wireless/libertas/dev.h
> +++ b/drivers/net/wireless/libertas/dev.h
> @@ -260,7 +260,6 @@ struct lbs_private {
> u16 psmode; /* Wlan802_11PowermodeCAM=disable
> Wlan802_11PowermodeMAX_PSP=enable */
> u32 psstate;
> - char ps_supported;
> u8 needtowakeup;
>
> struct assoc_request * pending_assoc_req;
> diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
> index 2a5b083..f658fd6 100644
> --- a/drivers/net/wireless/libertas/if_cs.c
> +++ b/drivers/net/wireless/libertas/if_cs.c
> @@ -933,9 +933,6 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
> goto out3;
> }
>
> - /* The firmware for the CF card supports powersave */
> - priv->ps_supported = 1;
> -
> ret = 0;
> goto out;
>
> diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
> index 8cdb88c..89396a7 100644
> --- a/drivers/net/wireless/libertas/if_sdio.c
> +++ b/drivers/net/wireless/libertas/if_sdio.c
> @@ -1039,9 +1039,6 @@ static int if_sdio_probe(struct sdio_func *func,
> if (ret)
> goto err_activate_card;
>
> - if (priv->fwcapinfo & FW_CAPINFO_PS)
> - priv->ps_supported = 1;
> -
> out:
> lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);
>
> diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
> index 923ed58..956566b 100644
> --- a/drivers/net/wireless/libertas/if_spi.c
> +++ b/drivers/net/wireless/libertas/if_spi.c
> @@ -1118,7 +1118,6 @@ static int __devinit if_spi_probe(struct spi_device *spi)
> priv->card = card;
> priv->hw_host_to_card = if_spi_host_to_card;
> priv->fw_ready = 1;
> - priv->ps_supported = 1;
>
> /* Initialize interrupt handling stuff. */
> card->run_thread = 1;
> diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
> index ea3dc03..16653c1 100644
> --- a/drivers/net/wireless/libertas/if_usb.c
> +++ b/drivers/net/wireless/libertas/if_usb.c
> @@ -185,13 +185,14 @@ static void if_usb_setup_firmware(struct lbs_private *priv)
> wake_method.action = cpu_to_le16(CMD_ACT_GET);
> if (lbs_cmd_with_response(priv, CMD_802_11_FW_WAKE_METHOD, &wake_method)) {
> lbs_pr_info("Firmware does not seem to support PS mode\n");
> + priv->fwcapinfo &= ~FW_CAPINFO_PS;
> } else {
> if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) {
> lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
> - priv->ps_supported = 1;
> } else {
> /* The versions which boot up this way don't seem to
> work even if we set it to the command interrupt */
> + priv->fwcapinfo &= ~FW_CAPINFO_PS;
> lbs_pr_info("Firmware doesn't wake via command interrupt; disabling PS mode\n");
> }
> }
> diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
> index 8bc1907..e96451c 100644
> --- a/drivers/net/wireless/libertas/wext.c
> +++ b/drivers/net/wireless/libertas/wext.c
> @@ -712,7 +712,7 @@ static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,
>
> lbs_deb_enter(LBS_DEB_WEXT);
>
> - if (!priv->ps_supported) {
> + if (!(priv->fwcapinfo & FW_CAPINFO_PS)) {
> if (vwrq->disabled)
> return 0;
> else
> --
> 1.5.6.3
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html


2009-06-16 20:00:38

by Dan Williams

[permalink] [raw]
Subject: Re: [PATCH] libertas: remove ps_supported flag, use fwcapinfo

On Thu, 2009-06-11 at 18:40 -0700, Andrey Yurovsky wrote:
> Power save support depends on the firmware capabilities rather than the
> card's hardware interface. Use the FW_CAPINFO_PS bit in the firmware
> capabilities mask throughout the driver in place of the redundant
> ps_supported flag and don't make decisions about PS support in the
> interface drivers (with the exception of a special case in the USB
> driver).
>
> Signed-off-by: Andrey Yurovsky <[email protected]>
> ---
> drivers/net/wireless/libertas/dev.h | 1 -
> drivers/net/wireless/libertas/if_cs.c | 3 ---
> drivers/net/wireless/libertas/if_sdio.c | 3 ---
> drivers/net/wireless/libertas/if_spi.c | 1 -
> drivers/net/wireless/libertas/if_usb.c | 2 +-
> drivers/net/wireless/libertas/wext.c | 2 +-
> 6 files changed, 2 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
> index f9ec69e..578c697 100644
> --- a/drivers/net/wireless/libertas/dev.h
> +++ b/drivers/net/wireless/libertas/dev.h
> @@ -260,7 +260,6 @@ struct lbs_private {
> u16 psmode; /* Wlan802_11PowermodeCAM=disable
> Wlan802_11PowermodeMAX_PSP=enable */
> u32 psstate;
> - char ps_supported;
> u8 needtowakeup;
>
> struct assoc_request * pending_assoc_req;
> diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
> index 2a5b083..f658fd6 100644
> --- a/drivers/net/wireless/libertas/if_cs.c
> +++ b/drivers/net/wireless/libertas/if_cs.c
> @@ -933,9 +933,6 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
> goto out3;
> }
>
> - /* The firmware for the CF card supports powersave */
> - priv->ps_supported = 1;
> -
> ret = 0;
> goto out;
>
> diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
> index 8cdb88c..89396a7 100644
> --- a/drivers/net/wireless/libertas/if_sdio.c
> +++ b/drivers/net/wireless/libertas/if_sdio.c
> @@ -1039,9 +1039,6 @@ static int if_sdio_probe(struct sdio_func *func,
> if (ret)
> goto err_activate_card;
>
> - if (priv->fwcapinfo & FW_CAPINFO_PS)
> - priv->ps_supported = 1;
> -
> out:
> lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);
>
> diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
> index f8c2898..2045ac3 100644
> --- a/drivers/net/wireless/libertas/if_spi.c
> +++ b/drivers/net/wireless/libertas/if_spi.c
> @@ -1117,7 +1117,6 @@ static int __devinit if_spi_probe(struct spi_device *spi)
> priv->card = card;
> priv->hw_host_to_card = if_spi_host_to_card;
> priv->fw_ready = 1;
> - priv->ps_supported = 1;
>
> /* Initialize interrupt handling stuff. */
> card->run_thread = 1;
> diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
> index ea3dc03..04da68e 100644
> --- a/drivers/net/wireless/libertas/if_usb.c
> +++ b/drivers/net/wireless/libertas/if_usb.c
> @@ -188,7 +188,7 @@ static void if_usb_setup_firmware(struct lbs_private *priv)
> } else {
> if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) {
> lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
> - priv->ps_supported = 1;
> + priv->fwcapinfo &= ~FW_CAPINFO_PS;

This seems odd; wouldn't

priv->fwcapinfo |= FW_CAPINFO_PS;

be the right thing to do here?

Dan

> } else {
> /* The versions which boot up this way don't seem to
> work even if we set it to the command interrupt */
> diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
> index 8bc1907..e96451c 100644
> --- a/drivers/net/wireless/libertas/wext.c
> +++ b/drivers/net/wireless/libertas/wext.c
> @@ -712,7 +712,7 @@ static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,
>
> lbs_deb_enter(LBS_DEB_WEXT);
>
> - if (!priv->ps_supported) {
> + if (!(priv->fwcapinfo & FW_CAPINFO_PS)) {
> if (vwrq->disabled)
> return 0;
> else