From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:51430) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q9c0Y-0007BV-82 for qemu-devel@nongnu.org; Tue, 12 Apr 2011 07:43:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q9c0X-0007do-3V for qemu-devel@nongnu.org; Tue, 12 Apr 2011 07:43:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:56217) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q9c0W-0007dT-M2 for qemu-devel@nongnu.org; Tue, 12 Apr 2011 07:43:45 -0400 From: Amit Shah Date: Tue, 12 Apr 2011 17:13:23 +0530 Message-Id: <2170ea9881efc68cd2265b9df956a30eb689b8cc.1302608369.git.amit.shah@redhat.com> In-Reply-To: References: In-Reply-To: References: Subject: [Qemu-devel] [PATCH v3 4/5] atapi: GESN: Standardise event response handling for future additions List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu list Cc: Kevin Wolf , Juan Quintela , Stefan Hajnoczi , Markus Armbruster , Amit Shah , Paolo Bonzini Handle GET_EVENT_STATUS_NOTIFICATION's No Event Available response in a generic way so that future additions to the code to handle other response types is easier. Signed-off-by: Amit Shah --- hw/ide/core.c | 24 +++++++++++++++++++----- 1 files changed, 19 insertions(+), 5 deletions(-) diff --git a/hw/ide/core.c b/hw/ide/core.c index e838990..a9bc1e3 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -1098,9 +1098,17 @@ static void handle_get_event_status_notification(IDEState *s, uint8_t control; } __attribute__((packed)) *gesn_cdb; + struct { + uint16_t len; + uint8_t notification_class; + uint8_t supported_events; + } __attribute((packed)) *gesn_event_header; + unsigned int max_len, used_len; gesn_cdb = (void *)packet; + gesn_event_header = (void *)packet; + max_len = be16_to_cpu(gesn_cdb->len); /* It is fine by the MMC spec to not support async mode operations */ @@ -1111,12 +1119,18 @@ static void handle_get_event_status_notification(IDEState *s, return; } - /* polling */ + /* polling mode operation */ + /* We don't support any event class (yet). */ - cpu_to_ube16(buf, 0x00); /* No event descriptor returned */ - buf[2] = 0x80; /* No Event Available (NEA) */ - buf[3] = 0x00; /* Empty supported event classes */ - ide_atapi_cmd_reply(s, 4, max_len); + gesn_event_header->supported_events = 0; + gesn_event_header->notification_class = 0; + + gesn_event_header->notification_class = 0x80; /* No event available */ + used_len = sizeof(*gesn_event_header); + + gesn_event_header->len = cpu_to_be16(used_len + - sizeof(*gesn_event_header)); + ide_atapi_cmd_reply(s, used_len, max_len); } static void ide_atapi_cmd(IDEState *s) -- 1.7.4.2