From patchwork Fri Dec 11 16:37:03 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 58295 Delivered-To: patches@linaro.org Received: by 10.112.157.166 with SMTP id wn6csp250624lbb; Fri, 11 Dec 2015 08:37:44 -0800 (PST) X-Received: by 10.98.11.29 with SMTP id t29mr16511498pfi.97.1449851864250; Fri, 11 Dec 2015 08:37:44 -0800 (PST) Return-Path: Received: from mnementh.archaic.org.uk (mnementh.archaic.org.uk. [2001:8b0:1d0::1]) by mx.google.com with ESMTPS id r20si2091120pfi.77.2015.12.11.08.37.38 for (version=TLS1_2 cipher=AES128-SHA bits=128/128); Fri, 11 Dec 2015 08:37:44 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of pm215@archaic.org.uk designates 2001:8b0:1d0::1 as permitted sender) client-ip=2001:8b0:1d0::1; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of pm215@archaic.org.uk designates 2001:8b0:1d0::1 as permitted sender) smtp.mailfrom=pm215@archaic.org.uk Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.80) (envelope-from ) id 1a7Qgx-0001Ih-Av; Fri, 11 Dec 2015 16:37:11 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Cc: patches@linaro.org, qemu-arm@nongnu.org, Alistair Francis , Peter Crosthwaite , "Edgar E. Iglesias" , Markus Armbruster , Paolo Bonzini , Kevin O'Connor Subject: [PATCH 02/10] hw/sd/sd.c: QOMify Date: Fri, 11 Dec 2015 16:37:03 +0000 Message-Id: <1449851831-4966-3-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1449851831-4966-1-git-send-email-peter.maydell@linaro.org> References: <1449851831-4966-1-git-send-email-peter.maydell@linaro.org> Turn the SD card into a QOM device. This conversion only changes the device itself; the various functions which are effectively methods on the device are not touched at this point. Signed-off-by: Peter Maydell --- hw/sd/sd.c | 99 ++++++++++++++++++++++++++++++++++++++++++------------ include/hw/sd/sd.h | 3 ++ 2 files changed, 80 insertions(+), 22 deletions(-) -- 1.9.1 diff --git a/hw/sd/sd.c b/hw/sd/sd.c index 1a9935c..7c79217 100644 --- a/hw/sd/sd.c +++ b/hw/sd/sd.c @@ -33,6 +33,8 @@ #include "sysemu/block-backend.h" #include "hw/sd/sd.h" #include "qemu/bitmap.h" +#include "hw/qdev-properties.h" +#include "qemu/error-report.h" //#define DEBUG_SD 1 @@ -77,6 +79,8 @@ enum SDCardStates { }; struct SDState { + DeviceState parent_obj; + uint32_t mode; /* current card mode, one of SDCardModes */ int32_t state; /* current card state, one of SDCardStates */ uint32_t ocr; @@ -472,34 +476,26 @@ static const VMStateDescription sd_vmstate = { } }; -/* We do not model the chip select pin, so allow the board to select - whether card should be in SSI or MMC/SD mode. It is also up to the - board to ensure that ssi transfers only occur when the chip select - is asserted. */ +/* Legacy initialization function for use by non-qdevified callers */ SDState *sd_init(BlockBackend *blk, bool is_spi) { - SDState *sd; + DeviceState *dev; + Error *err = NULL; - if (blk && blk_is_read_only(blk)) { - fprintf(stderr, "sd_init: Cannot use read-only drive\n"); + dev = qdev_create(NULL, TYPE_SD); + qdev_prop_set_drive(dev, "drive", blk, &err); + if (err) { + error_report("sd_init failed: %s", error_get_pretty(err)); return NULL; } - - sd = (SDState *) g_malloc0(sizeof(SDState)); - sd->buf = blk_blockalign(blk, 512); - sd->spi = is_spi; - sd->enable = true; - sd->blk = blk; - sd_reset(sd); - if (sd->blk) { - /* Attach dev if not already attached. (This call ignores an - * error return code if sd->blk is already attached.) */ - /* FIXME ignoring blk_attach_dev() failure is dangerously brittle */ - blk_attach_dev(sd->blk, sd); - blk_set_dev_ops(sd->blk, &sd_block_ops, sd); + qdev_prop_set_bit(dev, "spi", is_spi); + object_property_set_bool(OBJECT(dev), true, "realized", &err); + if (err) { + error_report("sd_init failed: %s", error_get_pretty(err)); + return NULL; } - vmstate_register(NULL, -1, &sd_vmstate, sd); - return sd; + + return SD(dev); } void sd_set_cb(SDState *sd, qemu_irq readonly, qemu_irq insert) @@ -1765,3 +1761,62 @@ void sd_enable(SDState *sd, bool enable) { sd->enable = enable; } + +static void sd_instance_init(Object *obj) +{ + SDState *sd = SD(obj); + + sd->enable = true; +} + +static void sd_realize(DeviceState *dev, Error ** errp) +{ + SDState *sd = SD(dev); + + if (sd->blk && blk_is_read_only(sd->blk)) { + error_setg(errp, "Cannot use read-only drive as SD card"); + return; + } + + sd->buf = blk_blockalign(sd->blk, 512); + + if (sd->blk) { + blk_set_dev_ops(sd->blk, &sd_block_ops, sd); + } + + sd_reset(sd); +} + +static Property sd_properties[] = { + DEFINE_PROP_DRIVE("drive", SDState, blk), + /* We do not model the chip select pin, so allow the board to select + * whether card should be in SSI or MMC/SD mode. It is also up to the + * board to ensure that ssi transfers only occur when the chip select + * is asserted. */ + DEFINE_PROP_BOOL("spi", SDState, spi, false), + DEFINE_PROP_END_OF_LIST() +}; + +static void sd_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->realize = sd_realize; + dc->props = sd_properties; + dc->vmsd = &sd_vmstate; +} + +static const TypeInfo sd_info = { + .name = TYPE_SD, + .parent = TYPE_DEVICE, + .instance_size = sizeof(SDState), + .class_init = sd_class_init, + .instance_init = sd_instance_init, +}; + +static void sd_register_types(void) +{ + type_register_static(&sd_info); +} + +type_init(sd_register_types) diff --git a/include/hw/sd/sd.h b/include/hw/sd/sd.h index 79adb5b..6997dfc 100644 --- a/include/hw/sd/sd.h +++ b/include/hw/sd/sd.h @@ -68,6 +68,9 @@ typedef struct { typedef struct SDState SDState; +#define TYPE_SD "sd" +#define SD(obj) OBJECT_CHECK(SDState, (obj), TYPE_SD) + SDState *sd_init(BlockBackend *bs, bool is_spi); int sd_do_command(SDState *sd, SDRequest *req, uint8_t *response);