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[Qemu-devel] [PATCH v4 06/20] sdcard: simplify using the ldst API
From: |
Philippe Mathieu-Daudé |
Subject: |
[Qemu-devel] [PATCH v4 06/20] sdcard: simplify using the ldst API |
Date: |
Thu, 15 Feb 2018 19:13:11 -0300 |
the code is easier to review/refactor.
Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
Reviewed-by: Alistair Francis <address@hidden>
---
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 4267919ce0..b43baa2edd 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -432,57 +432,39 @@ 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)
@@ -728,7 +710,7 @@ 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 */
@@ -752,9 +734,7 @@ 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)
--
2.16.1
- [Qemu-devel] [PATCH v4 00/20] SDCard: bugfixes, support UHS-I (part 5), Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 01/20] sdcard: Don't always set the high capacity bit, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 02/20] sdcard: update the CSD CRC register regardless the CSD structure version, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 03/20] sdcard: fix the 'maximum data transfer rate' to 25MHz, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 04/20] sdcard: clean the SCR register and add few comments, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 05/20] sdcard: remove commands from unsupported old MMC specification, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 06/20] sdcard: simplify using the ldst API,
Philippe Mathieu-Daudé <=
- [Qemu-devel] [PATCH v4 07/20] sdcard: use the correct masked OCR in the R3 reply, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 08/20] sdcard: use the registerfields API for the CARD_STATUS register masks, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 09/20] sdcard: handle CMD54 (SDIO), Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 10/20] sdcard: handle the Security Specification commands, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 11/20] sdcard: use a more descriptive label 'unimplemented_spi_cmd', Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 12/20] sdcard: handles more commands in SPI mode, Philippe Mathieu-Daudé, 2018/02/15
- [Qemu-devel] [PATCH v4 13/20] sdcard: check the card is in correct state for APP CMD (CMD55), Philippe Mathieu-Daudé, 2018/02/15