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Re: [Qemu-devel] [PATCH v3 4/5] atapi: GESN: Standardise event response
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [PATCH v3 4/5] atapi: GESN: Standardise event response handling for future additions |
Date: |
Tue, 12 Apr 2011 15:09:33 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10 |
Am 12.04.2011 13:43, schrieb Amit Shah:
> 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 <address@hidden>
> ---
> 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;
I think this should be buf, not 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;
This line has no effect, even after the next patch.
Kevin
[Qemu-devel] [PATCH v3 5/5] atapi: GESN: implement 'media' subcommand, Amit Shah, 2011/04/12