From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35478) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1edp9w-0003eX-VJ for qemu-devel@nongnu.org; Mon, 22 Jan 2018 22:22:05 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1edp9v-0000kZ-VP for qemu-devel@nongnu.org; Mon, 22 Jan 2018 22:22:04 -0500 Received: from mail-qt0-x241.google.com ([2607:f8b0:400d:c0d::241]:38049) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1edp9v-0000kC-QV for qemu-devel@nongnu.org; Mon, 22 Jan 2018 22:22:03 -0500 Received: by mail-qt0-x241.google.com with SMTP id z10so26434053qti.5 for ; Mon, 22 Jan 2018 19:22:03 -0800 (PST) Sender: =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Tue, 23 Jan 2018 00:21:30 -0300 Message-Id: <20180123032135.28863-8-f4bug@amsat.org> In-Reply-To: <20180123032135.28863-1-f4bug@amsat.org> References: <20180123032135.28863-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v3 07/12] sdcard: define SDMMC_CMD_MAX instead of using the magic '64' List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Alistair Francis , Peter Maydell , Igor Mitsyanko Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org, "Edgar E . Iglesias" , Prasad J Pandit , Peter Crosthwaite , Andrzej Zaborowski Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis --- hw/sd/sd.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 27c08aa894..7b1cbc0a2e 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -126,6 +126,8 @@ struct SDState { bool cmd_line; }; +#define SDMMC_CMD_MAX 64 + static const char *sd_state_name(enum SDCardStates state) { static const char *state_name[] = { @@ -213,18 +215,21 @@ static void sd_set_mode(SDState *sd) } } -static const sd_cmd_type_t sd_cmd_type[64] = { +static const sd_cmd_type_t sd_cmd_type[SDMMC_CMD_MAX] = { sd_bc, sd_none, sd_bcr, sd_bcr, sd_none, sd_none, sd_none, sd_ac, sd_bcr, sd_ac, sd_ac, sd_adtc, sd_ac, sd_ac, sd_none, sd_ac, + /* 16 */ sd_ac, sd_adtc, sd_adtc, sd_none, sd_none, sd_none, sd_none, sd_none, sd_adtc, sd_adtc, sd_adtc, sd_adtc, sd_ac, sd_ac, sd_adtc, sd_none, + /* 32 */ sd_ac, sd_ac, sd_none, sd_none, sd_none, sd_none, sd_ac, sd_none, sd_none, sd_none, sd_bc, sd_none, sd_none, sd_none, sd_none, sd_none, + /* 48 */ sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_ac, sd_adtc, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, sd_none, }; -static const int sd_cmd_class[64] = { +static const int sd_cmd_class[SDMMC_CMD_MAX] = { 0, 0, 0, 0, 0, 9, 10, 0, 0, 0, 0, 1, 0, 0, 0, 0, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 6, 6, 6, 6, 5, 5, 10, 10, 10, 10, 5, 9, 9, 9, 7, 7, 7, 7, 7, 7, @@ -829,8 +834,8 @@ static sd_rsp_type_t sd_normal_command(SDState *sd, SDRequest req) /* Not interpreting this as an app command */ sd->card_status &= ~APP_CMD; - if (sd_cmd_type[req.cmd & 0x3F] == sd_ac - || sd_cmd_type[req.cmd & 0x3F] == sd_adtc) { + if (sd_cmd_type[req.cmd] == sd_ac + || sd_cmd_type[req.cmd] == sd_adtc) { rca = req.arg >> 16; } @@ -1542,8 +1547,8 @@ static int cmd_valid_while_locked(SDState *sd, SDRequest *req) if (req->cmd == 16 || req->cmd == 55) { return 1; } - return sd_cmd_class[req->cmd & 0x3F] == 0 - || sd_cmd_class[req->cmd & 0x3F] == 7; + return sd_cmd_class[req->cmd] == 0 + || sd_cmd_class[req->cmd] == 7; } int sd_do_command(SDState *sd, SDRequest *req, @@ -1562,6 +1567,12 @@ int sd_do_command(SDState *sd, SDRequest *req, goto send_response; } + if (req->cmd >= SDMMC_CMD_MAX) { + qemu_log_mask(LOG_GUEST_ERROR, "SD: incorrect command 0x%02x\n", + req->cmd); + req->cmd &= 0x3f; + } + if (sd->card_status & CARD_IS_LOCKED) { if (!cmd_valid_while_locked(sd, req)) { sd->card_status |= ILLEGAL_COMMAND; -- 2.15.1