From 6f296421f8963bfd2cae13b4648b2c115f7562c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Thu, 22 Feb 2018 15:12:52 +0000 Subject: [PATCH] sdcard: use the registerfields API to access the OCR register MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis Message-id: 20180215220540.6556-12-f4bug@amsat.org Signed-off-by: Peter Maydell --- hw/sd/sd.c | 21 +++++++++++++-------- include/hw/sd/sd.h | 1 - 2 files changed, 13 insertions(+), 9 deletions(-) diff --git a/hw/sd/sd.c b/hw/sd/sd.c index b3698e34ad..706cb52668 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -32,6 +32,7 @@ #include "qemu/osdep.h" #include "hw/qdev.h" #include "hw/hw.h" +#include "hw/registerfields.h" #include "sysemu/block-backend.h" #include "hw/sd/sd.h" #include "qapi/error.h" @@ -47,8 +48,6 @@ //#define DEBUG_SD 1 #define ACMD41_ENQUIRY_MASK 0x00ffffff -#define OCR_POWER_UP 0x80000000 -#define OCR_POWER_DELAY_NS 500000 /* 0.5ms */ typedef enum { sd_r0 = 0, /* no response */ @@ -271,6 +270,11 @@ static uint16_t sd_crc16(void *message, size_t width) return shift_reg; } +#define OCR_POWER_DELAY_NS 500000 /* 0.5ms */ + +FIELD(OCR, CARD_CAPACITY, 30, 1) /* 0:SDSC, 1:SDHC/SDXC */ +FIELD(OCR, CARD_POWER_UP, 31, 1) + static void sd_set_ocr(SDState *sd) { /* All voltages OK, Standard Capacity SD Memory Card, not yet powered up */ @@ -282,9 +286,10 @@ static void sd_ocr_powerup(void *opaque) SDState *sd = opaque; trace_sdcard_powerup(); - /* Set powered up bit in OCR */ - assert(!(sd->ocr & OCR_POWER_UP)); - sd->ocr |= OCR_POWER_UP; + assert(!FIELD_EX32(sd->ocr, OCR, CARD_POWER_UP)); + + /* card power-up OK */ + sd->ocr = FIELD_DP32(sd->ocr, OCR, CARD_POWER_UP, 1); } static void sd_set_scr(SDState *sd) @@ -570,7 +575,7 @@ static bool sd_ocr_vmstate_needed(void *opaque) SDState *sd = opaque; /* Include the OCR state (and timer) if it is not yet powered up */ - return !(sd->ocr & OCR_POWER_UP); + return !FIELD_EX32(sd->ocr, OCR, CARD_POWER_UP); } static const VMStateDescription sd_ocr_vmstate = { @@ -680,7 +685,7 @@ static void sd_erase(SDState *sd) return; } - if (extract32(sd->ocr, OCR_CCS_BITN, 1)) { + if (FIELD_EX32(sd->ocr, OCR, CARD_CAPACITY)) { /* High capacity memory card: erase units are 512 byte blocks */ erase_start *= 512; erase_end *= 512; @@ -1468,7 +1473,7 @@ static sd_rsp_type_t sd_app_command(SDState *sd, * UEFI, which sends an initial enquiry ACMD41, but * assumes that the card is in ready state as soon as it * sees the power up bit set. */ - if (!(sd->ocr & OCR_POWER_UP)) { + if (!FIELD_EX32(sd->ocr, OCR, CARD_POWER_UP)) { if ((req.arg & ACMD41_ENQUIRY_MASK) != 0) { timer_del(sd->ocr_power_timer); sd_ocr_powerup(sd); diff --git a/include/hw/sd/sd.h b/include/hw/sd/sd.h index bf1eb0713c..9bdb3c9285 100644 --- a/include/hw/sd/sd.h +++ b/include/hw/sd/sd.h @@ -53,7 +53,6 @@ #define READY_FOR_DATA (1 << 8) #define APP_CMD (1 << 5) #define AKE_SEQ_ERROR (1 << 3) -#define OCR_CCS_BITN 30 typedef enum { SD_VOLTAGE_0_4V = 400, /* currently not supported */