Re: [PATCH] android/gatt: Fix handling write request

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Hi Łukasz,

On Wednesday 21 of May 2014 14:32:19 Lukasz Rymanowski wrote:
> This patch adds write request to Android framework and uses buffor on
> the stack for the request event.
> ---
>  android/gatt.c | 26 +++++++++++++++-----------
>  1 file changed, 15 insertions(+), 11 deletions(-)
> 
> diff --git a/android/gatt.c b/android/gatt.c
> index 89da60d..42bf2ec 100644
> --- a/android/gatt.c
> +++ b/android/gatt.c
> @@ -3891,7 +3891,8 @@ static void write_cb(uint16_t handle, uint16_t offset,
>  					uint8_t att_opcode, bdaddr_t *bdaddr,
>  					void *user_data)
>  {
> -	struct hal_ev_gatt_server_request_write ev;
> +	uint8_t buf[IPC_MTU];
> +	struct hal_ev_gatt_server_request_write *ev = (void *) buf;
>  	struct gatt_app *app;
>  	int32_t id = PTR_TO_INT(user_data);
>  	static int32_t trans_id = 1;
> @@ -3916,21 +3917,24 @@ static void write_cb(uint16_t handle, uint16_t offset,
>  	if (att_opcode == ATT_OP_EXEC_WRITE_REQ)
>  		goto failed;
>  
> -	memset(&ev, 0, sizeof(ev));
> +	memset(ev, 0, sizeof(*ev));
>  
> -	bdaddr2android(bdaddr, ev.bdaddr);
> -	ev.attr_handle = handle;
> -	ev.offset = offset;
> +	bdaddr2android(bdaddr, &ev->bdaddr);
> +	ev->attr_handle = handle;
> +	ev->offset = offset;
>  
> -	ev.conn_id = conn->id;
> -	ev.trans_id = app->trans_id.id;
> +	ev->conn_id = conn->id;
> +	ev->trans_id = app->trans_id.id;
>  
> -	ev.is_prep = att_opcode == ATT_OP_PREP_WRITE_REQ;
> -	ev.need_rsp = att_opcode == ATT_OP_WRITE_REQ;
> +	ev->is_prep = att_opcode == ATT_OP_PREP_WRITE_REQ;
> +	ev->need_rsp = att_opcode == ATT_OP_WRITE_REQ;
>  
> -	ev.length = len;
> -	memcpy(&ev.value, value, len);
> +	ev->length = len;
> +	memcpy(ev->value, value, len);
>  
> +	ipc_send_notif(hal_ipc, HAL_SERVICE_ID_GATT,
> +			HAL_EV_GATT_SERVER_REQUEST_WRITE,
> +						sizeof(*ev) + ev->length , ev);
>  	return;
>  
>  failed:
> 

Patch applied, thanks.

-- 
Best regards, 
Szymon Janc
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