Re: [patch 5/6] PS3: Sys-manager Wake-on-LAN support

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

On Wed, 2008-03-26 at 17:39 -0700, Geoff Levand wrote:
> Add Wake-on-LAN support to the PS3 system-manager.  Other OS WOL
> support was introduced in PS3 system firmware 2.20.

There is no sleep in the first place tho :-) Or does this power it up /
boot it using WoL packets ?

Cheers,
Ben.

> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
> ---
>  drivers/ps3/ps3-sys-manager.c |   46 ++++++++++++++++++++++++++++++++++++++++--
>  include/asm-powerpc/ps3.h     |    2 +
>  2 files changed, 46 insertions(+), 2 deletions(-)
> 
> --- a/drivers/ps3/ps3-sys-manager.c
> +++ b/drivers/ps3/ps3-sys-manager.c
> @@ -188,6 +188,7 @@ enum ps3_sys_manager_next_op {
>   * controller, and bluetooth controller.
>   * @PS3_SM_WAKE_RTC:
>   * @PS3_SM_WAKE_RTC_ERROR:
> + * @PS3_SM_WAKE_W_O_L: Ether or wireless LAN.
>   * @PS3_SM_WAKE_P_O_R: Power on reset.
>   *
>   * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN.
> @@ -201,10 +202,19 @@ enum ps3_sys_manager_wake_source {
>  	PS3_SM_WAKE_DEFAULT   = 0,
>  	PS3_SM_WAKE_RTC       = 0x00000040,
>  	PS3_SM_WAKE_RTC_ERROR = 0x00000080,
> +	PS3_SM_WAKE_W_O_L     = 0x00000400,
>  	PS3_SM_WAKE_P_O_R     = 0x80000000,
>  };
>  
>  /**
> + * user_wake_sources - User specified wakeup sources.
> + *
> + * Logical OR of enum ps3_sys_manager_wake_source types.
> + */
> +
> +static u32 user_wake_sources = PS3_SM_WAKE_DEFAULT;
> +
> +/**
>   * enum ps3_sys_manager_cmd - Command from system manager to guest.
>   *
>   * The guest completes the actions needed, then acks or naks the command via
> @@ -619,7 +629,7 @@ static void ps3_sys_manager_final_power_
>  	ps3_vuart_cancel_async(dev);
>  
>  	ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN,
> -		PS3_SM_WAKE_DEFAULT);
> +		user_wake_sources);
>  
>  	ps3_sys_manager_fin(dev);
>  }
> @@ -652,12 +662,44 @@ static void ps3_sys_manager_final_restar
>  
>  	ps3_sys_manager_send_attr(dev, 0);
>  	ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_REBOOT,
> -		PS3_SM_WAKE_DEFAULT);
> +		user_wake_sources);
>  
>  	ps3_sys_manager_fin(dev);
>  }
>  
>  /**
> + * ps3_sys_manager_get_wol - Get wake-on-lan setting.
> + */
> +
> +int ps3_sys_manager_get_wol(void)
> +{
> +	pr_debug("%s:%d\n", __func__, __LINE__);
> +
> +	return (user_wake_sources & PS3_SM_WAKE_W_O_L) != 0;
> +}
> +EXPORT_SYMBOL_GPL(ps3_sys_manager_get_wol);
> +
> +/**
> + * ps3_sys_manager_set_wol - Set wake-on-lan setting.
> + */
> +
> +void ps3_sys_manager_set_wol(int state)
> +{
> +	static DEFINE_MUTEX(mutex);
> +
> +	mutex_lock(&mutex);
> +
> +	pr_debug("%s:%d: %d\n", __func__, __LINE__, state);
> +
> +	if (state)
> +		user_wake_sources |= PS3_SM_WAKE_W_O_L;
> +	else
> +		user_wake_sources &= ~PS3_SM_WAKE_W_O_L;
> +	mutex_unlock(&mutex);
> +}
> +EXPORT_SYMBOL_GPL(ps3_sys_manager_set_wol);
> +
> +/**
>   * ps3_sys_manager_work - Asynchronous read handler.
>   *
>   * Signaled when PS3_SM_RX_MSG_LEN_MIN bytes arrive at the vuart port.
> --- a/include/asm-powerpc/ps3.h
> +++ b/include/asm-powerpc/ps3.h
> @@ -437,6 +437,8 @@ void ps3_sys_manager_register_ops(const 
>  void __noreturn ps3_sys_manager_power_off(void);
>  void __noreturn ps3_sys_manager_restart(void);
>  void __noreturn ps3_sys_manager_halt(void);
> +int ps3_sys_manager_get_wol(void);
> +void ps3_sys_manager_set_wol(int state);
>  
>  struct ps3_prealloc {
>      const char *name;
>