From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37753) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1edpId-0003Nr-GC for qemu-devel@nongnu.org; Mon, 22 Jan 2018 22:31:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1edpIa-0007sL-CS for qemu-devel@nongnu.org; Mon, 22 Jan 2018 22:31:03 -0500 Received: from mail-qt0-x242.google.com ([2607:f8b0:400d:c0d::242]:40935) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1edpIa-0007s6-7i for qemu-devel@nongnu.org; Mon, 22 Jan 2018 22:31:00 -0500 Received: by mail-qt0-x242.google.com with SMTP id s39so26492642qth.7 for ; Mon, 22 Jan 2018 19:31:00 -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 00:30:22 -0300 Message-Id: <20180123033034.29493-7-f4bug@amsat.org> In-Reply-To: <20180123033034.29493-1-f4bug@amsat.org> References: <20180123033034.29493-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v3 06/18] sdcard: simplify using the ldst API 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 the code is easier to review/refactor. Signed-off-by: Philippe Mathieu-Daudé --- hw/sd/sd.c | 38 +++++++++----------------------------- 1 file changed, 9 insertions(+), 29 deletions(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 3c66521862..23f5d47782 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -435,57 +435,39 @@ static int sd_req_crc_validate(SDRequest *req) { uint8_t buffer[5]; buffer[0] = 0x40 | req->cmd; - buffer[1] = (req->arg >> 24) & 0xff; - buffer[2] = (req->arg >> 16) & 0xff; - buffer[3] = (req->arg >> 8) & 0xff; - buffer[4] = (req->arg >> 0) & 0xff; + stl_be_p(&buffer[1], req->arg); return 0; return sd_crc7(buffer, 5) != req->crc; /* TODO */ } static void sd_response_r1_make(SDState *sd, uint8_t *response) { - uint32_t status = sd->card_status; + stl_be_p(response, sd->card_status); + /* Clear the "clear on read" status bits */ sd->card_status &= ~CARD_STATUS_C; - - response[0] = (status >> 24) & 0xff; - response[1] = (status >> 16) & 0xff; - response[2] = (status >> 8) & 0xff; - response[3] = (status >> 0) & 0xff; } static void sd_response_r3_make(SDState *sd, uint8_t *response) { - response[0] = (sd->ocr >> 24) & 0xff; - response[1] = (sd->ocr >> 16) & 0xff; - response[2] = (sd->ocr >> 8) & 0xff; - response[3] = (sd->ocr >> 0) & 0xff; + stl_be_p(response, sd->ocr); } static void sd_response_r6_make(SDState *sd, uint8_t *response) { - uint16_t arg; uint16_t status; - arg = sd->rca; status = ((sd->card_status >> 8) & 0xc000) | ((sd->card_status >> 6) & 0x2000) | (sd->card_status & 0x1fff); sd->card_status &= ~(CARD_STATUS_C & 0xc81fff); - - response[0] = (arg >> 8) & 0xff; - response[1] = arg & 0xff; - response[2] = (status >> 8) & 0xff; - response[3] = status & 0xff; + stw_be_p(response + 0, sd->rca); + stw_be_p(response + 2, status); } static void sd_response_r7_make(SDState *sd, uint8_t *response) { - response[0] = (sd->vhs >> 24) & 0xff; - response[1] = (sd->vhs >> 16) & 0xff; - response[2] = (sd->vhs >> 8) & 0xff; - response[3] = (sd->vhs >> 0) & 0xff; + stl_be_p(response, sd->vhs); } static inline uint64_t sd_addr_to_wpnum(uint64_t addr) @@ -731,7 +713,7 @@ static uint32_t sd_wpbits(SDState *sd, uint64_t addr) static void sd_function_switch(SDState *sd, uint32_t arg) { - int i, mode, new_func, crc; + int i, mode, new_func; mode = !!(arg & 0x80000000); sd->data[0] = 0x00; /* Maximum current consumption */ @@ -755,9 +737,7 @@ static void sd_function_switch(SDState *sd, uint32_t arg) sd->data[14 + (i >> 1)] = new_func << ((i * 4) & 4); } memset(&sd->data[17], 0, 47); - crc = sd_crc16(sd->data, 64); - sd->data[65] = crc >> 8; - sd->data[66] = crc & 0xff; + stw_be_p(sd->data + 65, sd_crc16(sd->data, 64)); } static inline bool sd_wp_addr(SDState *sd, uint64_t addr) -- 2.15.1