Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
[MTD] [NAND] cs553x_nand: command line partitioning support
diff --git a/MAINTAINERS b/MAINTAINERS
index 0d6f511..5740aa2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3627,6 +3627,13 @@
W: http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
S: Maintained
+SONY MEMORYSTICK CARD SUPPORT
+P: Alex Dubov
+M: oakad@yahoo.com
+L: linux-kernel@vger.kernel.org
+W: http://tifmxx.berlios.de/
+S: Maintained
+
SOUND
P: Jaroslav Kysela
M: perex@perex.cz
diff --git a/drivers/Kconfig b/drivers/Kconfig
index b86877b..3a0e354 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -80,6 +80,8 @@
source "drivers/mmc/Kconfig"
+source "drivers/memstick/Kconfig"
+
source "drivers/leds/Kconfig"
source "drivers/infiniband/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 30ba97e..e5e394a 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -78,6 +78,7 @@
obj-$(CONFIG_CPU_FREQ) += cpufreq/
obj-$(CONFIG_CPU_IDLE) += cpuidle/
obj-$(CONFIG_MMC) += mmc/
+obj-$(CONFIG_MEMSTICK) += memstick/
obj-$(CONFIG_NEW_LEDS) += leds/
obj-$(CONFIG_INFINIBAND) += infiniband/
obj-$(CONFIG_SGI_SN) += sn/
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index a70c1c2..c452e2d 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -657,7 +657,6 @@
if ((cmd = ub_get_cmd(lun)) == NULL)
return -1;
memset(cmd, 0, sizeof(struct ub_scsi_cmd));
- sg_init_table(cmd->sgv, UB_MAX_REQ_SG);
blkdev_dequeue_request(rq);
@@ -668,6 +667,7 @@
/*
* get scatterlist from block layer
*/
+ sg_init_table(&urq->sgv[0], UB_MAX_REQ_SG);
n_elem = blk_rq_map_sg(lun->disk->queue, rq, &urq->sgv[0]);
if (n_elem < 0) {
/* Impossible, because blk_rq_map_sg should not hit ENOMEM. */
diff --git a/drivers/memstick/Kconfig b/drivers/memstick/Kconfig
new file mode 100644
index 0000000..1093fdb
--- /dev/null
+++ b/drivers/memstick/Kconfig
@@ -0,0 +1,26 @@
+#
+# MemoryStick subsystem configuration
+#
+
+menuconfig MEMSTICK
+ tristate "Sony MemoryStick card support (EXPERIMENTAL)"
+ help
+ Sony MemoryStick is a proprietary storage/extension card protocol.
+
+ If you want MemoryStick support, you should say Y here and also
+ to the specific driver for your MMC interface.
+
+if MEMSTICK
+
+config MEMSTICK_DEBUG
+ bool "MemoryStick debugging"
+ help
+ This is an option for use by developers; most people should
+ say N here. This enables MemoryStick core and driver debugging.
+
+
+source "drivers/memstick/core/Kconfig"
+
+source "drivers/memstick/host/Kconfig"
+
+endif # MEMSTICK
diff --git a/drivers/memstick/Makefile b/drivers/memstick/Makefile
new file mode 100644
index 0000000..dc160fb4
--- /dev/null
+++ b/drivers/memstick/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the kernel MemoryStick device drivers.
+#
+
+ifeq ($(CONFIG_MEMSTICK_DEBUG),y)
+ EXTRA_CFLAGS += -DDEBUG
+endif
+
+obj-$(CONFIG_MEMSTICK) += core/
+obj-$(CONFIG_MEMSTICK) += host/
+
diff --git a/drivers/memstick/core/Kconfig b/drivers/memstick/core/Kconfig
new file mode 100644
index 0000000..95f1814
--- /dev/null
+++ b/drivers/memstick/core/Kconfig
@@ -0,0 +1,26 @@
+#
+# MemoryStick core configuration
+#
+
+comment "MemoryStick drivers"
+
+config MEMSTICK_UNSAFE_RESUME
+ bool "Allow unsafe resume (DANGEROUS)"
+ help
+ If you say Y here, the MemoryStick layer will assume that all
+ cards stayed in their respective slots during the suspend. The
+ normal behaviour is to remove them at suspend and
+ redetecting them at resume. Breaking this assumption will
+ in most cases result in data corruption.
+
+ This option is usually just for embedded systems which use
+ a MemoryStick card for rootfs. Most people should say N here.
+
+config MSPRO_BLOCK
+ tristate "MemoryStick Pro block device driver"
+ depends on BLOCK
+ help
+ Say Y here to enable the MemoryStick Pro block device driver
+ support. This provides a block device driver, which you can use
+ to mount the filesystem. Almost everyone wishing MemoryStick
+ support should say Y or M here.
diff --git a/drivers/memstick/core/Makefile b/drivers/memstick/core/Makefile
new file mode 100644
index 0000000..8b2b529
--- /dev/null
+++ b/drivers/memstick/core/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the kernel MemoryStick core.
+#
+
+ifeq ($(CONFIG_MEMSTICK_DEBUG),y)
+ EXTRA_CFLAGS += -DDEBUG
+endif
+
+obj-$(CONFIG_MEMSTICK) += memstick.o
+
+obj-$(CONFIG_MSPRO_BLOCK) += mspro_block.o
diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c
new file mode 100644
index 0000000..bba467f
--- /dev/null
+++ b/drivers/memstick/core/memstick.c
@@ -0,0 +1,614 @@
+/*
+ * Sony MemoryStick support
+ *
+ * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Special thanks to Carlos Corbacho for providing various MemoryStick cards
+ * that made this driver possible.
+ *
+ */
+
+#include <linux/memstick.h>
+#include <linux/idr.h>
+#include <linux/fs.h>
+#include <linux/delay.h>
+
+#define DRIVER_NAME "memstick"
+#define DRIVER_VERSION "0.2"
+
+static unsigned int cmd_retries = 3;
+module_param(cmd_retries, uint, 0644);
+
+static struct workqueue_struct *workqueue;
+static DEFINE_IDR(memstick_host_idr);
+static DEFINE_SPINLOCK(memstick_host_lock);
+
+static int memstick_dev_match(struct memstick_dev *card,
+ struct memstick_device_id *id)
+{
+ if (id->match_flags & MEMSTICK_MATCH_ALL) {
+ if ((id->type == card->id.type)
+ && (id->category == card->id.category)
+ && (id->class == card->id.class))
+ return 1;
+ }
+
+ return 0;
+}
+
+static int memstick_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct memstick_dev *card = container_of(dev, struct memstick_dev,
+ dev);
+ struct memstick_driver *ms_drv = container_of(drv,
+ struct memstick_driver,
+ driver);
+ struct memstick_device_id *ids = ms_drv->id_table;
+
+ if (ids) {
+ while (ids->match_flags) {
+ if (memstick_dev_match(card, ids))
+ return 1;
+ ++ids;
+ }
+ }
+ return 0;
+}
+
+static int memstick_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct memstick_dev *card = container_of(dev, struct memstick_dev,
+ dev);
+
+ if (add_uevent_var(env, "MEMSTICK_TYPE=%02X", card->id.type))
+ return -ENOMEM;
+
+ if (add_uevent_var(env, "MEMSTICK_CATEGORY=%02X", card->id.category))
+ return -ENOMEM;
+
+ if (add_uevent_var(env, "MEMSTICK_CLASS=%02X", card->id.class))
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int memstick_device_probe(struct device *dev)
+{
+ struct memstick_dev *card = container_of(dev, struct memstick_dev,
+ dev);
+ struct memstick_driver *drv = container_of(dev->driver,
+ struct memstick_driver,
+ driver);
+ int rc = -ENODEV;
+
+ if (dev->driver && drv->probe) {
+ rc = drv->probe(card);
+ if (!rc)
+ get_device(dev);
+ }
+ return rc;
+}
+
+static int memstick_device_remove(struct device *dev)
+{
+ struct memstick_dev *card = container_of(dev, struct memstick_dev,
+ dev);
+ struct memstick_driver *drv = container_of(dev->driver,
+ struct memstick_driver,
+ driver);
+
+ if (dev->driver && drv->remove) {
+ drv->remove(card);
+ card->dev.driver = NULL;
+ }
+
+ put_device(dev);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int memstick_device_suspend(struct device *dev, pm_message_t state)
+{
+ struct memstick_dev *card = container_of(dev, struct memstick_dev,
+ dev);
+ struct memstick_driver *drv = container_of(dev->driver,
+ struct memstick_driver,
+ driver);
+
+ if (dev->driver && drv->suspend)
+ return drv->suspend(card, state);
+ return 0;
+}
+
+static int memstick_device_resume(struct device *dev)
+{
+ struct memstick_dev *card = container_of(dev, struct memstick_dev,
+ dev);
+ struct memstick_driver *drv = container_of(dev->driver,
+ struct memstick_driver,
+ driver);
+
+ if (dev->driver && drv->resume)
+ return drv->resume(card);
+ return 0;
+}
+
+#else
+
+#define memstick_device_suspend NULL
+#define memstick_device_resume NULL
+
+#endif /* CONFIG_PM */
+
+#define MEMSTICK_ATTR(name, format) \
+static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct memstick_dev *card = container_of(dev, struct memstick_dev, \
+ dev); \
+ return sprintf(buf, format, card->id.name); \
+}
+
+MEMSTICK_ATTR(type, "%02X");
+MEMSTICK_ATTR(category, "%02X");
+MEMSTICK_ATTR(class, "%02X");
+
+#define MEMSTICK_ATTR_RO(name) __ATTR(name, S_IRUGO, name##_show, NULL)
+
+static struct device_attribute memstick_dev_attrs[] = {
+ MEMSTICK_ATTR_RO(type),
+ MEMSTICK_ATTR_RO(category),
+ MEMSTICK_ATTR_RO(class),
+ __ATTR_NULL
+};
+
+static struct bus_type memstick_bus_type = {
+ .name = "memstick",
+ .dev_attrs = memstick_dev_attrs,
+ .match = memstick_bus_match,
+ .uevent = memstick_uevent,
+ .probe = memstick_device_probe,
+ .remove = memstick_device_remove,
+ .suspend = memstick_device_suspend,
+ .resume = memstick_device_resume
+};
+
+static void memstick_free(struct class_device *cdev)
+{
+ struct memstick_host *host = container_of(cdev, struct memstick_host,
+ cdev);
+ kfree(host);
+}
+
+static struct class memstick_host_class = {
+ .name = "memstick_host",
+ .release = memstick_free
+};
+
+static void memstick_free_card(struct device *dev)
+{
+ struct memstick_dev *card = container_of(dev, struct memstick_dev,
+ dev);
+ kfree(card);
+}
+
+static int memstick_dummy_check(struct memstick_dev *card)
+{
+ return 0;
+}
+
+/**
+ * memstick_detect_change - schedule media detection on memstick host
+ * @host - host to use
+ */
+void memstick_detect_change(struct memstick_host *host)
+{
+ queue_work(workqueue, &host->media_checker);
+}
+EXPORT_SYMBOL(memstick_detect_change);
+
+/**
+ * memstick_next_req - called by host driver to obtain next request to process
+ * @host - host to use
+ * @mrq - pointer to stick the request to
+ *
+ * Host calls this function from idle state (*mrq == NULL) or after finishing
+ * previous request (*mrq should point to it). If previous request was
+ * unsuccessful, it is retried for predetermined number of times. Return value
+ * of 0 means that new request was assigned to the host.
+ */
+int memstick_next_req(struct memstick_host *host, struct memstick_request **mrq)
+{
+ int rc = -ENXIO;
+
+ if ((*mrq) && (*mrq)->error && host->retries) {
+ (*mrq)->error = rc;
+ host->retries--;
+ return 0;
+ }
+
+ if (host->card && host->card->next_request)
+ rc = host->card->next_request(host->card, mrq);
+
+ if (!rc)
+ host->retries = cmd_retries;
+ else
+ *mrq = NULL;
+
+ return rc;
+}
+EXPORT_SYMBOL(memstick_next_req);
+
+/**
+ * memstick_new_req - notify the host that some requests are pending
+ * @host - host to use
+ */
+void memstick_new_req(struct memstick_host *host)
+{
+ host->retries = cmd_retries;
+ host->request(host);
+}
+EXPORT_SYMBOL(memstick_new_req);
+
+/**
+ * memstick_init_req_sg - set request fields needed for bulk data transfer
+ * @mrq - request to use
+ * @tpc - memstick Transport Protocol Command
+ * @sg - TPC argument
+ */
+void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc,
+ struct scatterlist *sg)
+{
+ mrq->tpc = tpc;
+ if (tpc & 8)
+ mrq->data_dir = WRITE;
+ else
+ mrq->data_dir = READ;
+
+ mrq->sg = *sg;
+ mrq->io_type = MEMSTICK_IO_SG;
+
+ if (tpc == MS_TPC_SET_CMD || tpc == MS_TPC_EX_SET_CMD)
+ mrq->need_card_int = 1;
+ else
+ mrq->need_card_int = 0;
+
+ mrq->get_int_reg = 0;
+}
+EXPORT_SYMBOL(memstick_init_req_sg);
+
+/**
+ * memstick_init_req - set request fields needed for short data transfer
+ * @mrq - request to use
+ * @tpc - memstick Transport Protocol Command
+ * @buf - TPC argument buffer
+ * @length - TPC argument size
+ *
+ * The intended use of this function (transfer of data items several bytes
+ * in size) allows us to just copy the value between request structure and
+ * user supplied buffer.
+ */
+void memstick_init_req(struct memstick_request *mrq, unsigned char tpc,
+ void *buf, size_t length)
+{
+ mrq->tpc = tpc;
+ if (tpc & 8)
+ mrq->data_dir = WRITE;
+ else
+ mrq->data_dir = READ;
+
+ mrq->data_len = length > sizeof(mrq->data) ? sizeof(mrq->data) : length;
+ if (mrq->data_dir == WRITE)
+ memcpy(mrq->data, buf, mrq->data_len);
+
+ mrq->io_type = MEMSTICK_IO_VAL;
+
+ if (tpc == MS_TPC_SET_CMD || tpc == MS_TPC_EX_SET_CMD)
+ mrq->need_card_int = 1;
+ else
+ mrq->need_card_int = 0;
+
+ mrq->get_int_reg = 0;
+}
+EXPORT_SYMBOL(memstick_init_req);
+
+/*
+ * Functions prefixed with "h_" are protocol callbacks. They can be called from
+ * interrupt context. Return value of 0 means that request processing is still
+ * ongoing, while special error value of -EAGAIN means that current request is
+ * finished (and request processor should come back some time later).
+ */
+
+static int h_memstick_read_dev_id(struct memstick_dev *card,
+ struct memstick_request **mrq)
+{
+ struct ms_id_register id_reg;
+
+ if (!(*mrq)) {
+ memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL,
+ sizeof(struct ms_id_register));
+ *mrq = &card->current_mrq;
+ return 0;
+ } else {
+ if (!(*mrq)->error) {
+ memcpy(&id_reg, (*mrq)->data, sizeof(id_reg));
+ card->id.match_flags = MEMSTICK_MATCH_ALL;
+ card->id.type = id_reg.type;
+ card->id.category = id_reg.category;
+ card->id.class = id_reg.class;
+ }
+ complete(&card->mrq_complete);
+ return -EAGAIN;
+ }
+}
+
+static int h_memstick_set_rw_addr(struct memstick_dev *card,
+ struct memstick_request **mrq)
+{
+ if (!(*mrq)) {
+ memstick_init_req(&card->current_mrq, MS_TPC_SET_RW_REG_ADRS,
+ (char *)&card->reg_addr,
+ sizeof(card->reg_addr));
+ *mrq = &card->current_mrq;
+ return 0;
+ } else {
+ complete(&card->mrq_complete);
+ return -EAGAIN;
+ }
+}
+
+/**
+ * memstick_set_rw_addr - issue SET_RW_REG_ADDR request and wait for it to
+ * complete
+ * @card - media device to use
+ */
+int memstick_set_rw_addr(struct memstick_dev *card)
+{
+ card->next_request = h_memstick_set_rw_addr;
+ memstick_new_req(card->host);
+ wait_for_completion(&card->mrq_complete);
+
+ return card->current_mrq.error;
+}
+EXPORT_SYMBOL(memstick_set_rw_addr);
+
+static struct memstick_dev *memstick_alloc_card(struct memstick_host *host)
+{
+ struct memstick_dev *card = kzalloc(sizeof(struct memstick_dev),
+ GFP_KERNEL);
+ struct memstick_dev *old_card = host->card;
+ struct ms_id_register id_reg;
+
+ if (card) {
+ card->host = host;
+ snprintf(card->dev.bus_id, sizeof(card->dev.bus_id),
+ "%s", host->cdev.class_id);
+ card->dev.parent = host->cdev.dev;
+ card->dev.bus = &memstick_bus_type;
+ card->dev.release = memstick_free_card;
+ card->check = memstick_dummy_check;
+
+ card->reg_addr.r_offset = offsetof(struct ms_register, id);
+ card->reg_addr.r_length = sizeof(id_reg);
+ card->reg_addr.w_offset = offsetof(struct ms_register, id);
+ card->reg_addr.w_length = sizeof(id_reg);
+
+ init_completion(&card->mrq_complete);
+
+ host->card = card;
+ if (memstick_set_rw_addr(card))
+ goto err_out;
+
+ card->next_request = h_memstick_read_dev_id;
+ memstick_new_req(host);
+ wait_for_completion(&card->mrq_complete);
+
+ if (card->current_mrq.error)
+ goto err_out;
+ }
+ host->card = old_card;
+ return card;
+err_out:
+ host->card = old_card;
+ kfree(card);
+ return NULL;
+}
+
+static void memstick_power_on(struct memstick_host *host)
+{
+ host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON);
+ host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL);
+ msleep(1);
+}
+
+static void memstick_check(struct work_struct *work)
+{
+ struct memstick_host *host = container_of(work, struct memstick_host,
+ media_checker);
+ struct memstick_dev *card;
+
+ dev_dbg(host->cdev.dev, "memstick_check started\n");
+ mutex_lock(&host->lock);
+ if (!host->card)
+ memstick_power_on(host);
+
+ card = memstick_alloc_card(host);
+
+ if (!card) {
+ if (host->card) {
+ device_unregister(&host->card->dev);
+ host->card = NULL;
+ }
+ } else {
+ dev_dbg(host->cdev.dev, "new card %02x, %02x, %02x\n",
+ card->id.type, card->id.category, card->id.class);
+ if (host->card) {
+ if (memstick_set_rw_addr(host->card)
+ || !memstick_dev_match(host->card, &card->id)
+ || !(host->card->check(host->card))) {
+ device_unregister(&host->card->dev);
+ host->card = NULL;
+ }
+ }
+
+ if (!host->card) {
+ host->card = card;
+ if (device_register(&card->dev)) {
+ kfree(host->card);
+ host->card = NULL;
+ }
+ } else
+ kfree(card);
+ }
+
+ if (!host->card)
+ host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF);
+
+ mutex_unlock(&host->lock);
+ dev_dbg(host->cdev.dev, "memstick_check finished\n");
+}
+
+/**
+ * memstick_alloc_host - allocate a memstick_host structure
+ * @extra: size of the user private data to allocate
+ * @dev: parent device of the host
+ */
+struct memstick_host *memstick_alloc_host(unsigned int extra,
+ struct device *dev)
+{
+ struct memstick_host *host;
+
+ host = kzalloc(sizeof(struct memstick_host) + extra, GFP_KERNEL);
+ if (host) {
+ mutex_init(&host->lock);
+ INIT_WORK(&host->media_checker, memstick_check);
+ host->cdev.class = &memstick_host_class;
+ host->cdev.dev = dev;
+ class_device_initialize(&host->cdev);
+ }
+ return host;
+}
+EXPORT_SYMBOL(memstick_alloc_host);
+
+/**
+ * memstick_add_host - start request processing on memstick host
+ * @host - host to use
+ */
+int memstick_add_host(struct memstick_host *host)
+{
+ int rc;
+
+ if (!idr_pre_get(&memstick_host_idr, GFP_KERNEL))
+ return -ENOMEM;
+
+ spin_lock(&memstick_host_lock);
+ rc = idr_get_new(&memstick_host_idr, host, &host->id);
+ spin_unlock(&memstick_host_lock);
+ if (rc)
+ return rc;
+
+ snprintf(host->cdev.class_id, BUS_ID_SIZE,
+ "memstick%u", host->id);
+
+ rc = class_device_add(&host->cdev);
+ if (rc) {
+ spin_lock(&memstick_host_lock);
+ idr_remove(&memstick_host_idr, host->id);
+ spin_unlock(&memstick_host_lock);
+ return rc;
+ }
+
+ host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF);
+ memstick_detect_change(host);
+ return 0;
+}
+EXPORT_SYMBOL(memstick_add_host);
+
+/**
+ * memstick_remove_host - stop request processing on memstick host
+ * @host - host to use
+ */
+void memstick_remove_host(struct memstick_host *host)
+{
+ flush_workqueue(workqueue);
+ mutex_lock(&host->lock);
+ if (host->card)
+ device_unregister(&host->card->dev);
+ host->card = NULL;
+ host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF);
+ mutex_unlock(&host->lock);
+
+ spin_lock(&memstick_host_lock);
+ idr_remove(&memstick_host_idr, host->id);
+ spin_unlock(&memstick_host_lock);
+ class_device_del(&host->cdev);
+}
+EXPORT_SYMBOL(memstick_remove_host);
+
+/**
+ * memstick_free_host - free memstick host
+ * @host - host to use
+ */
+void memstick_free_host(struct memstick_host *host)
+{
+ mutex_destroy(&host->lock);
+ class_device_put(&host->cdev);
+}
+EXPORT_SYMBOL(memstick_free_host);
+
+int memstick_register_driver(struct memstick_driver *drv)
+{
+ drv->driver.bus = &memstick_bus_type;
+
+ return driver_register(&drv->driver);
+}
+EXPORT_SYMBOL(memstick_register_driver);
+
+void memstick_unregister_driver(struct memstick_driver *drv)
+{
+ driver_unregister(&drv->driver);
+}
+EXPORT_SYMBOL(memstick_unregister_driver);
+
+
+static int __init memstick_init(void)
+{
+ int rc;
+
+ workqueue = create_freezeable_workqueue("kmemstick");
+ if (!workqueue)
+ return -ENOMEM;
+
+ rc = bus_register(&memstick_bus_type);
+ if (!rc)
+ rc = class_register(&memstick_host_class);
+
+ if (!rc)
+ return 0;
+
+ bus_unregister(&memstick_bus_type);
+ destroy_workqueue(workqueue);
+
+ return rc;
+}
+
+static void __exit memstick_exit(void)
+{
+ class_unregister(&memstick_host_class);
+ bus_unregister(&memstick_bus_type);
+ destroy_workqueue(workqueue);
+ idr_destroy(&memstick_host_idr);
+}
+
+module_init(memstick_init);
+module_exit(memstick_exit);
+
+MODULE_AUTHOR("Alex Dubov");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Sony MemoryStick core driver");
+MODULE_VERSION(DRIVER_VERSION);
diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
new file mode 100644
index 0000000..423ad8c
--- /dev/null
+++ b/drivers/memstick/core/mspro_block.c
@@ -0,0 +1,1351 @@
+/*
+ * Sony MemoryStick Pro storage support
+ *
+ * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Special thanks to Carlos Corbacho for providing various MemoryStick cards
+ * that made this driver possible.
+ *
+ */
+
+#include <linux/blkdev.h>
+#include <linux/idr.h>
+#include <linux/hdreg.h>
+#include <linux/kthread.h>
+#include <linux/memstick.h>
+
+#define DRIVER_NAME "mspro_block"
+#define DRIVER_VERSION "0.2"
+
+static int major;
+module_param(major, int, 0644);
+
+#define MSPRO_BLOCK_MAX_SEGS 32
+#define MSPRO_BLOCK_MAX_PAGES ((2 << 16) - 1)
+
+#define MSPRO_BLOCK_SIGNATURE 0xa5c3
+#define MSPRO_BLOCK_MAX_ATTRIBUTES 41
+
+enum {
+ MSPRO_BLOCK_ID_SYSINFO = 0x10,
+ MSPRO_BLOCK_ID_MODELNAME = 0x15,
+ MSPRO_BLOCK_ID_MBR = 0x20,
+ MSPRO_BLOCK_ID_PBR16 = 0x21,
+ MSPRO_BLOCK_ID_PBR32 = 0x22,
+ MSPRO_BLOCK_ID_SPECFILEVALUES1 = 0x25,
+ MSPRO_BLOCK_ID_SPECFILEVALUES2 = 0x26,
+ MSPRO_BLOCK_ID_DEVINFO = 0x30
+};
+
+struct mspro_sys_attr {
+ size_t size;
+ void *data;
+ unsigned char id;
+ char name[32];
+ struct device_attribute dev_attr;
+};
+
+struct mspro_attr_entry {
+ unsigned int address;
+ unsigned int size;
+ unsigned char id;
+ unsigned char reserved[3];
+} __attribute__((packed));
+
+struct mspro_attribute {
+ unsigned short signature;
+ unsigned short version;
+ unsigned char count;
+ unsigned char reserved[11];
+ struct mspro_attr_entry entries[];
+} __attribute__((packed));
+
+struct mspro_sys_info {
+ unsigned char class;
+ unsigned char reserved0;
+ unsigned short block_size;
+ unsigned short block_count;
+ unsigned short user_block_count;
+ unsigned short page_size;
+ unsigned char reserved1[2];
+ unsigned char assembly_date[8];
+ unsigned int serial_number;
+ unsigned char assembly_maker_code;
+ unsigned char assembly_model_code[3];
+ unsigned short memory_maker_code;
+ unsigned short memory_model_code;
+ unsigned char reserved2[4];
+ unsigned char vcc;
+ unsigned char vpp;
+ unsigned short controller_number;
+ unsigned short controller_function;
+ unsigned short start_sector;
+ unsigned short unit_size;
+ unsigned char ms_sub_class;
+ unsigned char reserved3[4];
+ unsigned char interface_type;
+ unsigned short controller_code;
+ unsigned char format_type;
+ unsigned char reserved4;
+ unsigned char device_type;
+ unsigned char reserved5[7];
+ unsigned char mspro_id[16];
+ unsigned char reserved6[16];
+} __attribute__((packed));
+
+struct mspro_mbr {
+ unsigned char boot_partition;
+ unsigned char start_head;
+ unsigned char start_sector;
+ unsigned char start_cylinder;
+ unsigned char partition_type;
+ unsigned char end_head;
+ unsigned char end_sector;
+ unsigned char end_cylinder;
+ unsigned int start_sectors;
+ unsigned int sectors_per_partition;
+} __attribute__((packed));
+
+struct mspro_devinfo {
+ unsigned short cylinders;
+ unsigned short heads;
+ unsigned short bytes_per_track;
+ unsigned short bytes_per_sector;
+ unsigned short sectors_per_track;
+ unsigned char reserved[6];
+} __attribute__((packed));
+
+struct mspro_block_data {
+ struct memstick_dev *card;
+ unsigned int usage_count;
+ struct gendisk *disk;
+ struct request_queue *queue;
+ spinlock_t q_lock;
+ wait_queue_head_t q_wait;
+ struct task_struct *q_thread;
+
+ unsigned short page_size;
+ unsigned short cylinders;
+ unsigned short heads;
+ unsigned short sectors_per_track;
+
+ unsigned char system;
+ unsigned char read_only:1,
+ active:1,
+ has_request:1,
+ data_dir:1;
+ unsigned char transfer_cmd;
+
+ int (*mrq_handler)(struct memstick_dev *card,
+ struct memstick_request **mrq);
+
+ struct attribute_group attr_group;
+
+ struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS];
+ unsigned int seg_count;
+ unsigned int current_seg;
+ unsigned short current_page;
+};
+
+static DEFINE_IDR(mspro_block_disk_idr);
+static DEFINE_MUTEX(mspro_block_disk_lock);
+
+/*** Block device ***/
+
+static int mspro_block_bd_open(struct inode *inode, struct file *filp)
+{
+ struct gendisk *disk = inode->i_bdev->bd_disk;
+ struct mspro_block_data *msb = disk->private_data;
+ int rc = -ENXIO;
+
+ mutex_lock(&mspro_block_disk_lock);
+
+ if (msb && msb->card) {
+ msb->usage_count++;
+ if ((filp->f_mode & FMODE_WRITE) && msb->read_only)
+ rc = -EROFS;
+ else
+ rc = 0;
+ }
+
+ mutex_unlock(&mspro_block_disk_lock);
+
+ return rc;
+}
+
+
+static int mspro_block_disk_release(struct gendisk *disk)
+{
+ struct mspro_block_data *msb = disk->private_data;
+ int disk_id = disk->first_minor >> MEMSTICK_PART_SHIFT;
+
+ mutex_lock(&mspro_block_disk_lock);
+
+ if (msb->usage_count) {
+ msb->usage_count--;
+ if (!msb->usage_count) {
+ kfree(msb);
+ disk->private_data = NULL;
+ idr_remove(&mspro_block_disk_idr, disk_id);
+ put_disk(disk);
+ }
+ }
+
+ mutex_unlock(&mspro_block_disk_lock);
+
+ return 0;
+}
+
+static int mspro_block_bd_release(struct inode *inode, struct file *filp)
+{
+ struct gendisk *disk = inode->i_bdev->bd_disk;
+ return mspro_block_disk_release(disk);
+}
+
+static int mspro_block_bd_getgeo(struct block_device *bdev,
+ struct hd_geometry *geo)
+{
+ struct mspro_block_data *msb = bdev->bd_disk->private_data;
+
+ geo->heads = msb->heads;
+ geo->sectors = msb->sectors_per_track;
+ geo->cylinders = msb->cylinders;
+
+ return 0;
+}
+
+static struct block_device_operations ms_block_bdops = {
+ .open = mspro_block_bd_open,
+ .release = mspro_block_bd_release,
+ .getgeo = mspro_block_bd_getgeo,
+ .owner = THIS_MODULE
+};
+
+/*** Information ***/
+
+static struct mspro_sys_attr *mspro_from_sysfs_attr(struct attribute *attr)
+{
+ struct device_attribute *dev_attr
+ = container_of(attr, struct device_attribute, attr);
+ return container_of(dev_attr, struct mspro_sys_attr, dev_attr);
+}
+
+static const char *mspro_block_attr_name(unsigned char tag)
+{
+ switch (tag) {
+ case MSPRO_BLOCK_ID_SYSINFO:
+ return "attr_sysinfo";
+ case MSPRO_BLOCK_ID_MODELNAME:
+ return "attr_modelname";
+ case MSPRO_BLOCK_ID_MBR:
+ return "attr_mbr";
+ case MSPRO_BLOCK_ID_PBR16:
+ return "attr_pbr16";
+ case MSPRO_BLOCK_ID_PBR32:
+ return "attr_pbr32";
+ case MSPRO_BLOCK_ID_SPECFILEVALUES1:
+ return "attr_specfilevalues1";
+ case MSPRO_BLOCK_ID_SPECFILEVALUES2:
+ return "attr_specfilevalues2";
+ case MSPRO_BLOCK_ID_DEVINFO:
+ return "attr_devinfo";
+ default:
+ return NULL;
+ };
+}
+
+typedef ssize_t (*sysfs_show_t)(struct device *dev,
+ struct device_attribute *attr,
+ char *buffer);
+
+static ssize_t mspro_block_attr_show_default(struct device *dev,
+ struct device_attribute *attr,
+ char *buffer)
+{
+ struct mspro_sys_attr *s_attr = container_of(attr,
+ struct mspro_sys_attr,
+ dev_attr);
+
+ ssize_t cnt, rc = 0;
+
+ for (cnt = 0; cnt < s_attr->size; cnt++) {
+ if (cnt && !(cnt % 16)) {
+ if (PAGE_SIZE - rc)
+ buffer[rc++] = '\n';
+ }
+
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "%02x ",
+ ((unsigned char *)s_attr->data)[cnt]);
+ }
+ return rc;
+}
+
+static ssize_t mspro_block_attr_show_sysinfo(struct device *dev,
+ struct device_attribute *attr,
+ char *buffer)
+{
+ struct mspro_sys_attr *x_attr = container_of(attr,
+ struct mspro_sys_attr,
+ dev_attr);
+ struct mspro_sys_info *x_sys = x_attr->data;
+ ssize_t rc = 0;
+
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n",
+ x_sys->class);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n",
+ be16_to_cpu(x_sys->block_size));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n",
+ be16_to_cpu(x_sys->block_count));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n",
+ be16_to_cpu(x_sys->user_block_count));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n",
+ be16_to_cpu(x_sys->page_size));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: "
+ "%d %04u-%02u-%02u %02u:%02u:%02u\n",
+ x_sys->assembly_date[0],
+ be16_to_cpu(*(unsigned short *)
+ &x_sys->assembly_date[1]),
+ x_sys->assembly_date[3], x_sys->assembly_date[4],
+ x_sys->assembly_date[5], x_sys->assembly_date[6],
+ x_sys->assembly_date[7]);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n",
+ be32_to_cpu(x_sys->serial_number));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
+ "assembly maker code: %x\n",
+ x_sys->assembly_maker_code);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: "
+ "%02x%02x%02x\n", x_sys->assembly_model_code[0],
+ x_sys->assembly_model_code[1],
+ x_sys->assembly_model_code[2]);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n",
+ be16_to_cpu(x_sys->memory_maker_code));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n",
+ be16_to_cpu(x_sys->memory_model_code));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n",
+ x_sys->vcc);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n",
+ x_sys->vpp);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n",
+ be16_to_cpu(x_sys->controller_number));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
+ "controller function: %x\n",
+ be16_to_cpu(x_sys->controller_function));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n",
+ be16_to_cpu(x_sys->start_sector));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n",
+ be16_to_cpu(x_sys->unit_size));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n",
+ x_sys->ms_sub_class);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n",
+ x_sys->interface_type);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n",
+ be16_to_cpu(x_sys->controller_code));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n",
+ x_sys->format_type);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n",
+ x_sys->device_type);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n",
+ x_sys->mspro_id);
+ return rc;
+}
+
+static ssize_t mspro_block_attr_show_modelname(struct device *dev,
+ struct device_attribute *attr,
+ char *buffer)
+{
+ struct mspro_sys_attr *s_attr = container_of(attr,
+ struct mspro_sys_attr,
+ dev_attr);
+
+ return scnprintf(buffer, PAGE_SIZE, "%s", (char *)s_attr->data);
+}
+
+static ssize_t mspro_block_attr_show_mbr(struct device *dev,
+ struct device_attribute *attr,
+ char *buffer)
+{
+ struct mspro_sys_attr *x_attr = container_of(attr,
+ struct mspro_sys_attr,
+ dev_attr);
+ struct mspro_mbr *x_mbr = x_attr->data;
+ ssize_t rc = 0;
+
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "boot partition: %x\n",
+ x_mbr->boot_partition);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start head: %x\n",
+ x_mbr->start_head);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n",
+ x_mbr->start_sector);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start cylinder: %x\n",
+ x_mbr->start_cylinder);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "partition type: %x\n",
+ x_mbr->partition_type);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end head: %x\n",
+ x_mbr->end_head);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end sector: %x\n",
+ x_mbr->end_sector);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "end cylinder: %x\n",
+ x_mbr->end_cylinder);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sectors: %x\n",
+ x_mbr->start_sectors);
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
+ "sectors per partition: %x\n",
+ x_mbr->sectors_per_partition);
+ return rc;
+}
+
+static ssize_t mspro_block_attr_show_devinfo(struct device *dev,
+ struct device_attribute *attr,
+ char *buffer)
+{
+ struct mspro_sys_attr *x_attr = container_of(attr,
+ struct mspro_sys_attr,
+ dev_attr);
+ struct mspro_devinfo *x_devinfo = x_attr->data;
+ ssize_t rc = 0;
+
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "cylinders: %x\n",
+ be16_to_cpu(x_devinfo->cylinders));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "heads: %x\n",
+ be16_to_cpu(x_devinfo->heads));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per track: %x\n",
+ be16_to_cpu(x_devinfo->bytes_per_track));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "bytes per sector: %x\n",
+ be16_to_cpu(x_devinfo->bytes_per_sector));
+ rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sectors per track: %x\n",
+ be16_to_cpu(x_devinfo->sectors_per_track));
+ return rc;
+}
+
+static sysfs_show_t mspro_block_attr_show(unsigned char tag)
+{
+ switch (tag) {
+ case MSPRO_BLOCK_ID_SYSINFO:
+ return mspro_block_attr_show_sysinfo;
+ case MSPRO_BLOCK_ID_MODELNAME:
+ return mspro_block_attr_show_modelname;
+ case MSPRO_BLOCK_ID_MBR:
+ return mspro_block_attr_show_mbr;
+ case MSPRO_BLOCK_ID_DEVINFO:
+ return mspro_block_attr_show_devinfo;
+ default:
+ return mspro_block_attr_show_default;
+ }
+}
+
+/*** Protocol handlers ***/
+
+/*
+ * Functions prefixed with "h_" are protocol callbacks. They can be called from
+ * interrupt context. Return value of 0 means that request processing is still
+ * ongoing, while special error value of -EAGAIN means that current request is
+ * finished (and request processor should come back some time later).
+ */
+
+static int h_mspro_block_req_init(struct memstick_dev *card,
+ struct memstick_request **mrq)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+
+ *mrq = &card->current_mrq;
+ card->next_request = msb->mrq_handler;
+ return 0;
+}
+
+static int h_mspro_block_default(struct memstick_dev *card,
+ struct memstick_request **mrq)
+{
+ complete(&card->mrq_complete);
+ if (!(*mrq)->error)
+ return -EAGAIN;
+ else
+ return (*mrq)->error;
+}
+
+static int h_mspro_block_get_ro(struct memstick_dev *card,
+ struct memstick_request **mrq)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+
+ if ((*mrq)->error) {
+ complete(&card->mrq_complete);
+ return (*mrq)->error;
+ }
+
+ if ((*mrq)->data[offsetof(struct ms_status_register, status0)]
+ & MEMSTICK_STATUS0_WP)
+ msb->read_only = 1;
+ else
+ msb->read_only = 0;
+
+ complete(&card->mrq_complete);
+ return -EAGAIN;
+}
+
+static int h_mspro_block_wait_for_ced(struct memstick_dev *card,
+ struct memstick_request **mrq)
+{
+ if ((*mrq)->error) {
+ complete(&card->mrq_complete);
+ return (*mrq)->error;
+ }
+
+ dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]);
+
+ if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) {
+ card->current_mrq.error = -EFAULT;
+ complete(&card->mrq_complete);
+ return card->current_mrq.error;
+ }
+
+ if (!((*mrq)->data[0] & MEMSTICK_INT_CED))
+ return 0;
+ else {
+ card->current_mrq.error = 0;
+ complete(&card->mrq_complete);
+ return -EAGAIN;
+ }
+}
+
+static int h_mspro_block_transfer_data(struct memstick_dev *card,
+ struct memstick_request **mrq)
+{
+ struct memstick_host *host = card->host;
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ unsigned char t_val = 0;
+ struct scatterlist t_sg = { 0 };
+ size_t t_offset;
+
+ if ((*mrq)->error) {
+ complete(&card->mrq_complete);
+ return (*mrq)->error;
+ }
+
+ switch ((*mrq)->tpc) {
+ case MS_TPC_WRITE_REG:
+ memstick_init_req(*mrq, MS_TPC_SET_CMD, &msb->transfer_cmd, 1);
+ (*mrq)->get_int_reg = 1;
+ return 0;
+ case MS_TPC_SET_CMD:
+ t_val = (*mrq)->int_reg;
+ memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
+ if (host->caps & MEMSTICK_CAP_AUTO_GET_INT)
+ goto has_int_reg;
+ return 0;
+ case MS_TPC_GET_INT:
+ t_val = (*mrq)->data[0];
+has_int_reg:
+ if (t_val & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) {
+ t_val = MSPRO_CMD_STOP;
+ memstick_init_req(*mrq, MS_TPC_SET_CMD, &t_val, 1);
+ card->next_request = h_mspro_block_default;
+ return 0;
+ }
+
+ if (msb->current_page
+ == (msb->req_sg[msb->current_seg].length
+ / msb->page_size)) {
+ msb->current_page = 0;
+ msb->current_seg++;
+
+ if (msb->current_seg == msb->seg_count) {
+ if (t_val & MEMSTICK_INT_CED) {
+ complete(&card->mrq_complete);
+ return -EAGAIN;
+ } else {
+ card->next_request
+ = h_mspro_block_wait_for_ced;
+ memstick_init_req(*mrq, MS_TPC_GET_INT,
+ NULL, 1);
+ return 0;
+ }
+ }
+ }
+
+ if (!(t_val & MEMSTICK_INT_BREQ)) {
+ memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
+ return 0;
+ }
+
+ t_offset = msb->req_sg[msb->current_seg].offset;
+ t_offset += msb->current_page * msb->page_size;
+
+ sg_set_page(&t_sg,
+ nth_page(sg_page(&(msb->req_sg[msb->current_seg])),
+ t_offset >> PAGE_SHIFT),
+ msb->page_size, offset_in_page(t_offset));
+
+ memstick_init_req_sg(*mrq, msb->data_dir == READ
+ ? MS_TPC_READ_LONG_DATA
+ : MS_TPC_WRITE_LONG_DATA,
+ &t_sg);
+ (*mrq)->get_int_reg = 1;
+ return 0;
+ case MS_TPC_READ_LONG_DATA:
+ case MS_TPC_WRITE_LONG_DATA:
+ msb->current_page++;
+ if (host->caps & MEMSTICK_CAP_AUTO_GET_INT) {
+ t_val = (*mrq)->int_reg;
+ goto has_int_reg;
+ } else {
+ memstick_init_req(*mrq, MS_TPC_GET_INT, NULL, 1);
+ return 0;
+ }
+
+ default:
+ BUG();
+ }
+}
+
+/*** Data transfer ***/
+
+static void mspro_block_process_request(struct memstick_dev *card,
+ struct request *req)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ struct mspro_param_register param;
+ int rc, chunk, cnt;
+ unsigned short page_count;
+ sector_t t_sec;
+ unsigned long flags;
+
+ do {
+ page_count = 0;
+ msb->current_seg = 0;
+ msb->seg_count = blk_rq_map_sg(req->q, req, msb->req_sg);
+
+ if (msb->seg_count) {
+ msb->current_page = 0;
+ for (rc = 0; rc < msb->seg_count; rc++)
+ page_count += msb->req_sg[rc].length
+ / msb->page_size;
+
+ t_sec = req->sector;
+ sector_div(t_sec, msb->page_size >> 9);
+ param.system = msb->system;
+ param.data_count = cpu_to_be16(page_count);
+ param.data_address = cpu_to_be32((uint32_t)t_sec);
+ param.cmd_param = 0;
+
+ msb->data_dir = rq_data_dir(req);
+ msb->transfer_cmd = msb->data_dir == READ
+ ? MSPRO_CMD_READ_DATA
+ : MSPRO_CMD_WRITE_DATA;
+
+ dev_dbg(&card->dev, "data transfer: cmd %x, "
+ "lba %x, count %x\n", msb->transfer_cmd,
+ be32_to_cpu(param.data_address),
+ page_count);
+
+ card->next_request = h_mspro_block_req_init;
+ msb->mrq_handler = h_mspro_block_transfer_data;
+ memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG,
+ ¶m, sizeof(param));
+ memstick_new_req(card->host);
+ wait_for_completion(&card->mrq_complete);
+ rc = card->current_mrq.error;
+
+ if (rc || (card->current_mrq.tpc == MSPRO_CMD_STOP)) {
+ for (cnt = 0; cnt < msb->current_seg; cnt++)
+ page_count += msb->req_sg[cnt].length
+ / msb->page_size;
+
+ if (msb->current_page)
+ page_count += msb->current_page - 1;
+
+ if (page_count && (msb->data_dir == READ))
+ rc = msb->page_size * page_count;
+ else
+ rc = -EIO;
+ } else
+ rc = msb->page_size * page_count;
+ } else
+ rc = -EFAULT;
+
+ spin_lock_irqsave(&msb->q_lock, flags);
+ if (rc >= 0)
+ chunk = __blk_end_request(req, 0, rc);
+ else
+ chunk = __blk_end_request(req, rc, 0);
+
+ dev_dbg(&card->dev, "end chunk %d, %d\n", rc, chunk);
+ spin_unlock_irqrestore(&msb->q_lock, flags);
+ } while (chunk);
+}
+
+static int mspro_block_has_request(struct mspro_block_data *msb)
+{
+ int rc = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&msb->q_lock, flags);
+ if (kthread_should_stop() || msb->has_request)
+ rc = 1;
+ spin_unlock_irqrestore(&msb->q_lock, flags);
+ return rc;
+}
+
+static int mspro_block_queue_thread(void *data)
+{
+ struct memstick_dev *card = data;
+ struct memstick_host *host = card->host;
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ struct request *req;
+ unsigned long flags;
+
+ while (1) {
+ wait_event(msb->q_wait, mspro_block_has_request(msb));
+ dev_dbg(&card->dev, "thread iter\n");
+
+ spin_lock_irqsave(&msb->q_lock, flags);
+ req = elv_next_request(msb->queue);
+ dev_dbg(&card->dev, "next req %p\n", req);
+ if (!req) {
+ msb->has_request = 0;
+ if (kthread_should_stop()) {
+ spin_unlock_irqrestore(&msb->q_lock, flags);
+ break;
+ }
+ } else
+ msb->has_request = 1;
+ spin_unlock_irqrestore(&msb->q_lock, flags);
+
+ if (req) {
+ mutex_lock(&host->lock);
+ mspro_block_process_request(card, req);
+ mutex_unlock(&host->lock);
+ }
+ }
+ dev_dbg(&card->dev, "thread finished\n");
+ return 0;
+}
+
+static void mspro_block_request(struct request_queue *q)
+{
+ struct memstick_dev *card = q->queuedata;
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ struct request *req = NULL;
+
+ if (msb->q_thread) {
+ msb->has_request = 1;
+ wake_up_all(&msb->q_wait);
+ } else {
+ while ((req = elv_next_request(q)) != NULL)
+ end_queued_request(req, -ENODEV);
+ }
+}
+
+/*** Initialization ***/
+
+static int mspro_block_wait_for_ced(struct memstick_dev *card)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+
+ card->next_request = h_mspro_block_req_init;
+ msb->mrq_handler = h_mspro_block_wait_for_ced;
+ memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1);
+ memstick_new_req(card->host);
+ wait_for_completion(&card->mrq_complete);
+ return card->current_mrq.error;
+}
+
+static int mspro_block_switch_to_parallel(struct memstick_dev *card)
+{
+ struct memstick_host *host = card->host;
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ struct mspro_param_register param = {
+ .system = 0,
+ .data_count = 0,
+ .data_address = 0,
+ .cmd_param = 0
+ };
+
+ card->next_request = h_mspro_block_req_init;
+ msb->mrq_handler = h_mspro_block_default;
+ memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m,
+ sizeof(param));
+ memstick_new_req(host);
+ wait_for_completion(&card->mrq_complete);
+ if (card->current_mrq.error)
+ return card->current_mrq.error;
+
+ msb->system = 0;
+ host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PARALLEL);
+
+ card->next_request = h_mspro_block_req_init;
+ msb->mrq_handler = h_mspro_block_default;
+ memstick_init_req(&card->current_mrq, MS_TPC_GET_INT, NULL, 1);
+ memstick_new_req(card->host);
+ wait_for_completion(&card->mrq_complete);
+
+ if (card->current_mrq.error) {
+ msb->system = 0x80;
+ host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+/* Memory allocated for attributes by this function should be freed by
+ * mspro_block_data_clear, no matter if the initialization process succeded
+ * or failed.
+ */
+static int mspro_block_read_attributes(struct memstick_dev *card)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ struct mspro_param_register param = {
+ .system = msb->system,
+ .data_count = cpu_to_be16(1),
+ .data_address = 0,
+ .cmd_param = 0
+ };
+ struct mspro_attribute *attr = NULL;
+ struct mspro_sys_attr *s_attr = NULL;
+ unsigned char *buffer = NULL;
+ int cnt, rc, attr_count;
+ unsigned int addr;
+ unsigned short page_count;
+
+ attr = kmalloc(msb->page_size, GFP_KERNEL);
+ if (!attr)
+ return -ENOMEM;
+
+ sg_init_one(&msb->req_sg[0], attr, msb->page_size);
+ msb->seg_count = 1;
+ msb->current_seg = 0;
+ msb->current_page = 0;
+ msb->data_dir = READ;
+ msb->transfer_cmd = MSPRO_CMD_READ_ATRB;
+
+ card->next_request = h_mspro_block_req_init;
+ msb->mrq_handler = h_mspro_block_transfer_data;
+ memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, ¶m,
+ sizeof(param));
+ memstick_new_req(card->host);
+ wait_for_completion(&card->mrq_complete);
+ if (card->current_mrq.error) {
+ rc = card->current_mrq.error;
+ goto out_free_attr;
+ }
+
+ if (be16_to_cpu(attr->signature) != MSPRO_BLOCK_SIGNATURE) {
+ printk(KERN_ERR "%s: unrecognized device signature %x\n",
+ card->dev.bus_id, be16_to_cpu(attr->signature));
+ rc = -ENODEV;
+ goto out_free_attr;
+ }
+
+ if (attr->count > MSPRO_BLOCK_MAX_ATTRIBUTES) {
+ printk(KERN_WARNING "%s: way too many attribute entries\n",
+ card->dev.bus_id);
+ attr_count = MSPRO_BLOCK_MAX_ATTRIBUTES;
+ } else
+ attr_count = attr->count;
+
+ msb->attr_group.attrs = kzalloc((attr_count + 1)
+ * sizeof(struct attribute),
+ GFP_KERNEL);
+ if (!msb->attr_group.attrs) {
+ rc = -ENOMEM;
+ goto out_free_attr;
+ }
+ msb->attr_group.name = "media_attributes";
+
+ buffer = kmalloc(msb->page_size, GFP_KERNEL);
+ if (!buffer) {
+ rc = -ENOMEM;
+ goto out_free_attr;
+ }
+ memcpy(buffer, (char *)attr, msb->page_size);
+ page_count = 1;
+
+ for (cnt = 0; cnt < attr_count; ++cnt) {
+ s_attr = kzalloc(sizeof(struct mspro_sys_attr), GFP_KERNEL);
+ if (!s_attr) {
+ rc = -ENOMEM;
+ goto out_free_buffer;
+ }
+
+ msb->attr_group.attrs[cnt] = &s_attr->dev_attr.attr;
+ addr = be32_to_cpu(attr->entries[cnt].address);
+ rc = be32_to_cpu(attr->entries[cnt].size);
+ dev_dbg(&card->dev, "adding attribute %d: id %x, address %x, "
+ "size %x\n", cnt, attr->entries[cnt].id, addr, rc);
+ s_attr->id = attr->entries[cnt].id;
+ if (mspro_block_attr_name(s_attr->id))
+ snprintf(s_attr->name, sizeof(s_attr->name), "%s",
+ mspro_block_attr_name(attr->entries[cnt].id));
+ else
+ snprintf(s_attr->name, sizeof(s_attr->name),
+ "attr_x%02x", attr->entries[cnt].id);
+
+ s_attr->dev_attr.attr.name = s_attr->name;
+ s_attr->dev_attr.attr.mode = S_IRUGO;
+ s_attr->dev_attr.attr.owner = THIS_MODULE;
+ s_attr->dev_attr.show = mspro_block_attr_show(s_attr->id);
+
+ if (!rc)
+ continue;
+
+ s_attr->size = rc;
+ s_attr->data = kmalloc(rc, GFP_KERNEL);
+ if (!s_attr->data) {
+ rc = -ENOMEM;
+ goto out_free_buffer;
+ }
+
+ if (((addr / msb->page_size)
+ == be32_to_cpu(param.data_address))
+ && (((addr + rc - 1) / msb->page_size)
+ == be32_to_cpu(param.data_address))) {
+ memcpy(s_attr->data, buffer + addr % msb->page_size,
+ rc);
+ continue;
+ }
+
+ if (page_count <= (rc / msb->page_size)) {
+ kfree(buffer);
+ page_count = (rc / msb->page_size) + 1;
+ buffer = kmalloc(page_count * msb->page_size,
+ GFP_KERNEL);
+ if (!buffer) {
+ rc = -ENOMEM;
+ goto out_free_attr;
+ }
+ }
+
+ param.system = msb->system;
+ param.data_count = cpu_to_be16((rc / msb->page_size) + 1);
+ param.data_address = cpu_to_be32(addr / msb->page_size);
+ param.cmd_param = 0;
+
+ sg_init_one(&msb->req_sg[0], buffer,
+ be16_to_cpu(param.data_count) * msb->page_size);
+ msb->seg_count = 1;
+ msb->current_seg = 0;
+ msb->current_page = 0;
+ msb->data_dir = READ;
+ msb->transfer_cmd = MSPRO_CMD_READ_ATRB;
+
+ dev_dbg(&card->dev, "reading attribute pages %x, %x\n",
+ be32_to_cpu(param.data_address),
+ be16_to_cpu(param.data_count));
+
+ card->next_request = h_mspro_block_req_init;
+ msb->mrq_handler = h_mspro_block_transfer_data;
+ memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG,
+ (char *)¶m, sizeof(param));
+ memstick_new_req(card->host);
+ wait_for_completion(&card->mrq_complete);
+ if (card->current_mrq.error) {
+ rc = card->current_mrq.error;
+ goto out_free_buffer;
+ }
+
+ memcpy(s_attr->data, buffer + addr % msb->page_size, rc);
+ }
+
+ rc = 0;
+out_free_buffer:
+ kfree(buffer);
+out_free_attr:
+ kfree(attr);
+ return rc;
+}
+
+static int mspro_block_init_card(struct memstick_dev *card)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ struct memstick_host *host = card->host;
+ int rc = 0;
+
+ msb->system = 0x80;
+ card->reg_addr.r_offset = offsetof(struct mspro_register, status);
+ card->reg_addr.r_length = sizeof(struct ms_status_register);
+ card->reg_addr.w_offset = offsetof(struct mspro_register, param);
+ card->reg_addr.w_length = sizeof(struct mspro_param_register);
+
+ if (memstick_set_rw_addr(card))
+ return -EIO;
+
+ if (host->caps & MEMSTICK_CAP_PARALLEL) {
+ if (mspro_block_switch_to_parallel(card))
+ printk(KERN_WARNING "%s: could not switch to "
+ "parallel interface\n", card->dev.bus_id);
+ }
+
+ rc = mspro_block_wait_for_ced(card);
+ if (rc)
+ return rc;
+ dev_dbg(&card->dev, "card activated\n");
+
+ card->next_request = h_mspro_block_req_init;
+ msb->mrq_handler = h_mspro_block_get_ro;
+ memstick_init_req(&card->current_mrq, MS_TPC_READ_REG, NULL,
+ sizeof(struct ms_status_register));
+ memstick_new_req(card->host);
+ wait_for_completion(&card->mrq_complete);
+ if (card->current_mrq.error)
+ return card->current_mrq.error;
+
+ dev_dbg(&card->dev, "card r/w status %d\n", msb->read_only ? 0 : 1);
+
+ msb->page_size = 512;
+ rc = mspro_block_read_attributes(card);
+ if (rc)
+ return rc;
+
+ dev_dbg(&card->dev, "attributes loaded\n");
+ return 0;
+
+}
+
+static int mspro_block_init_disk(struct memstick_dev *card)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ struct memstick_host *host = card->host;
+ struct mspro_devinfo *dev_info = NULL;
+ struct mspro_sys_info *sys_info = NULL;
+ struct mspro_sys_attr *s_attr = NULL;
+ int rc, disk_id;
+ u64 limit = BLK_BOUNCE_HIGH;
+ unsigned long capacity;
+
+ if (host->cdev.dev->dma_mask && *(host->cdev.dev->dma_mask))
+ limit = *(host->cdev.dev->dma_mask);
+
+ for (rc = 0; msb->attr_group.attrs[rc]; ++rc) {
+ s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]);
+
+ if (s_attr->id == MSPRO_BLOCK_ID_DEVINFO)
+ dev_info = s_attr->data;
+ else if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO)
+ sys_info = s_attr->data;
+ }
+
+ if (!dev_info || !sys_info)
+ return -ENODEV;
+
+ msb->cylinders = be16_to_cpu(dev_info->cylinders);
+ msb->heads = be16_to_cpu(dev_info->heads);
+ msb->sectors_per_track = be16_to_cpu(dev_info->sectors_per_track);
+
+ msb->page_size = be16_to_cpu(sys_info->unit_size);
+
+ if (!idr_pre_get(&mspro_block_disk_idr, GFP_KERNEL))
+ return -ENOMEM;
+
+ mutex_lock(&mspro_block_disk_lock);
+ rc = idr_get_new(&mspro_block_disk_idr, card, &disk_id);
+ mutex_unlock(&mspro_block_disk_lock);
+
+ if (rc)
+ return rc;
+
+ if ((disk_id << MEMSTICK_PART_SHIFT) > 255) {
+ rc = -ENOSPC;
+ goto out_release_id;
+ }
+
+ msb->disk = alloc_disk(1 << MEMSTICK_PART_SHIFT);
+ if (!msb->disk) {
+ rc = -ENOMEM;
+ goto out_release_id;
+ }
+
+ spin_lock_init(&msb->q_lock);
+ init_waitqueue_head(&msb->q_wait);
+
+ msb->queue = blk_init_queue(mspro_block_request, &msb->q_lock);
+ if (!msb->queue) {
+ rc = -ENOMEM;
+ goto out_put_disk;
+ }
+
+ msb->queue->queuedata = card;
+
+ blk_queue_bounce_limit(msb->queue, limit);
+ blk_queue_max_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES);
+ blk_queue_max_phys_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
+ blk_queue_max_hw_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
+ blk_queue_max_segment_size(msb->queue,
+ MSPRO_BLOCK_MAX_PAGES * msb->page_size);
+
+ msb->disk->major = major;
+ msb->disk->first_minor = disk_id << MEMSTICK_PART_SHIFT;
+ msb->disk->fops = &ms_block_bdops;
+ msb->usage_count = 1;
+ msb->disk->private_data = msb;
+ msb->disk->queue = msb->queue;
+ msb->disk->driverfs_dev = &card->dev;
+
+ sprintf(msb->disk->disk_name, "mspblk%d", disk_id);
+
+ blk_queue_hardsect_size(msb->queue, msb->page_size);
+
+ capacity = be16_to_cpu(sys_info->user_block_count);
+ capacity *= be16_to_cpu(sys_info->block_size);
+ capacity *= msb->page_size >> 9;
+ set_capacity(msb->disk, capacity);
+ dev_dbg(&card->dev, "capacity set %ld\n", capacity);
+ msb->q_thread = kthread_run(mspro_block_queue_thread, card,
+ DRIVER_NAME"d");
+ if (IS_ERR(msb->q_thread))
+ goto out_put_disk;
+
+ mutex_unlock(&host->lock);
+ add_disk(msb->disk);
+ mutex_lock(&host->lock);
+ msb->active = 1;
+ return 0;
+
+out_put_disk:
+ put_disk(msb->disk);
+out_release_id:
+ mutex_lock(&mspro_block_disk_lock);
+ idr_remove(&mspro_block_disk_idr, disk_id);
+ mutex_unlock(&mspro_block_disk_lock);
+ return rc;
+}
+
+static void mspro_block_data_clear(struct mspro_block_data *msb)
+{
+ int cnt;
+ struct mspro_sys_attr *s_attr;
+
+ if (msb->attr_group.attrs) {
+ for (cnt = 0; msb->attr_group.attrs[cnt]; ++cnt) {
+ s_attr = mspro_from_sysfs_attr(msb->attr_group
+ .attrs[cnt]);
+ kfree(s_attr->data);
+ kfree(s_attr);
+ }
+ kfree(msb->attr_group.attrs);
+ }
+
+ msb->card = NULL;
+}
+
+static int mspro_block_check_card(struct memstick_dev *card)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+
+ return (msb->active == 1);
+}
+
+static int mspro_block_probe(struct memstick_dev *card)
+{
+ struct mspro_block_data *msb;
+ int rc = 0;
+
+ msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL);
+ if (!msb)
+ return -ENOMEM;
+ memstick_set_drvdata(card, msb);
+ msb->card = card;
+
+ rc = mspro_block_init_card(card);
+
+ if (rc)
+ goto out_free;
+
+ rc = sysfs_create_group(&card->dev.kobj, &msb->attr_group);
+ if (rc)
+ goto out_free;
+
+ rc = mspro_block_init_disk(card);
+ if (!rc) {
+ card->check = mspro_block_check_card;
+ return 0;
+ }
+
+ sysfs_remove_group(&card->dev.kobj, &msb->attr_group);
+out_free:
+ memstick_set_drvdata(card, NULL);
+ mspro_block_data_clear(msb);
+ kfree(msb);
+ return rc;
+}
+
+static void mspro_block_remove(struct memstick_dev *card)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ struct task_struct *q_thread = NULL;
+ unsigned long flags;
+
+ del_gendisk(msb->disk);
+ dev_dbg(&card->dev, "mspro block remove\n");
+ spin_lock_irqsave(&msb->q_lock, flags);
+ q_thread = msb->q_thread;
+ msb->q_thread = NULL;
+ msb->active = 0;
+ spin_unlock_irqrestore(&msb->q_lock, flags);
+
+ if (q_thread) {
+ mutex_unlock(&card->host->lock);
+ kthread_stop(q_thread);
+ mutex_lock(&card->host->lock);
+ }
+
+ dev_dbg(&card->dev, "queue thread stopped\n");
+
+ blk_cleanup_queue(msb->queue);
+
+ sysfs_remove_group(&card->dev.kobj, &msb->attr_group);
+
+ mutex_lock(&mspro_block_disk_lock);
+ mspro_block_data_clear(msb);
+ mutex_unlock(&mspro_block_disk_lock);
+
+ mspro_block_disk_release(msb->disk);
+ memstick_set_drvdata(card, NULL);
+}
+
+#ifdef CONFIG_PM
+
+static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ struct task_struct *q_thread = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&msb->q_lock, flags);
+ q_thread = msb->q_thread;
+ msb->q_thread = NULL;
+ msb->active = 0;
+ blk_stop_queue(msb->queue);
+ spin_unlock_irqrestore(&msb->q_lock, flags);
+
+ if (q_thread)
+ kthread_stop(q_thread);
+
+ return 0;
+}
+
+static int mspro_block_resume(struct memstick_dev *card)
+{
+ struct mspro_block_data *msb = memstick_get_drvdata(card);
+ unsigned long flags;
+ int rc = 0;
+
+#ifdef CONFIG_MEMSTICK_UNSAFE_RESUME
+
+ struct mspro_block_data *new_msb;
+ struct memstick_host *host = card->host;
+ struct mspro_sys_attr *s_attr, *r_attr;
+ unsigned char cnt;
+
+ mutex_lock(&host->lock);
+ new_msb = kzalloc(sizeof(struct mspro_block_data), GFP_KERNEL);
+ if (!new_msb) {
+ rc = -ENOMEM;
+ goto out_unlock;
+ }
+
+ new_msb->card = card;
+ memstick_set_drvdata(card, new_msb);
+ if (mspro_block_init_card(card))
+ goto out_free;
+
+ for (cnt = 0; new_msb->attr_group.attrs[cnt]
+ && msb->attr_group.attrs[cnt]; ++cnt) {
+ s_attr = mspro_from_sysfs_attr(new_msb->attr_group.attrs[cnt]);
+ r_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[cnt]);
+
+ if (s_attr->id == MSPRO_BLOCK_ID_SYSINFO
+ && r_attr->id == s_attr->id) {
+ if (memcmp(s_attr->data, r_attr->data, s_attr->size))
+ break;
+
+ memstick_set_drvdata(card, msb);
+ msb->q_thread = kthread_run(mspro_block_queue_thread,
+ card, DRIVER_NAME"d");
+ if (IS_ERR(msb->q_thread))
+ msb->q_thread = NULL;
+ else
+ msb->active = 1;
+
+ break;
+ }
+ }
+
+out_free:
+ memstick_set_drvdata(card, msb);
+ mspro_block_data_clear(new_msb);
+ kfree(new_msb);
+out_unlock:
+ mutex_unlock(&host->lock);
+
+#endif /* CONFIG_MEMSTICK_UNSAFE_RESUME */
+
+ spin_lock_irqsave(&msb->q_lock, flags);
+ blk_start_queue(msb->queue);
+ spin_unlock_irqrestore(&msb->q_lock, flags);
+ return rc;
+}
+
+#else
+
+#define mspro_block_suspend NULL
+#define mspro_block_resume NULL
+
+#endif /* CONFIG_PM */
+
+static struct memstick_device_id mspro_block_id_tbl[] = {
+ {MEMSTICK_MATCH_ALL, MEMSTICK_TYPE_PRO, MEMSTICK_CATEGORY_STORAGE_DUO,
+ MEMSTICK_CLASS_GENERIC_DUO},
+ {}
+};
+
+
+static struct memstick_driver mspro_block_driver = {
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE
+ },
+ .id_table = mspro_block_id_tbl,
+ .probe = mspro_block_probe,
+ .remove = mspro_block_remove,
+ .suspend = mspro_block_suspend,
+ .resume = mspro_block_resume
+};
+
+static int __init mspro_block_init(void)
+{
+ int rc = -ENOMEM;
+
+ rc = register_blkdev(major, DRIVER_NAME);
+ if (rc < 0) {
+ printk(KERN_ERR DRIVER_NAME ": failed to register "
+ "major %d, error %d\n", major, rc);
+ return rc;
+ }
+ if (!major)
+ major = rc;
+
+ rc = memstick_register_driver(&mspro_block_driver);
+ if (rc)
+ unregister_blkdev(major, DRIVER_NAME);
+ return rc;
+}
+
+static void __exit mspro_block_exit(void)
+{
+ memstick_unregister_driver(&mspro_block_driver);
+ unregister_blkdev(major, DRIVER_NAME);
+ idr_destroy(&mspro_block_disk_idr);
+}
+
+module_init(mspro_block_init);
+module_exit(mspro_block_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alex Dubov");
+MODULE_DESCRIPTION("Sony MemoryStickPro block device driver");
+MODULE_DEVICE_TABLE(memstick, mspro_block_id_tbl);
+MODULE_VERSION(DRIVER_VERSION);
diff --git a/drivers/memstick/host/Kconfig b/drivers/memstick/host/Kconfig
new file mode 100644
index 0000000..c002fcc
--- /dev/null
+++ b/drivers/memstick/host/Kconfig
@@ -0,0 +1,22 @@
+#
+# MemoryStick host controller drivers
+#
+
+comment "MemoryStick Host Controller Drivers"
+
+config MEMSTICK_TIFM_MS
+ tristate "TI Flash Media MemoryStick Interface support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL && PCI
+ select TIFM_CORE
+ help
+ Say Y here if you want to be able to access MemoryStick cards with
+ the Texas Instruments(R) Flash Media card reader, found in many
+ laptops.
+ This option 'selects' (turns on, enables) 'TIFM_CORE', but you
+ probably also need appropriate card reader host adapter, such as
+ 'Misc devices: TI Flash Media PCI74xx/PCI76xx host adapter support
+ (TIFM_7XX1)'.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tifm_ms.
+
diff --git a/drivers/memstick/host/Makefile b/drivers/memstick/host/Makefile
new file mode 100644
index 0000000..ee66638
--- /dev/null
+++ b/drivers/memstick/host/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for MemoryStick host controller drivers
+#
+
+ifeq ($(CONFIG_MEMSTICK_DEBUG),y)
+ EXTRA_CFLAGS += -DDEBUG
+endif
+
+obj-$(CONFIG_MEMSTICK_TIFM_MS) += tifm_ms.o
+
diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c
new file mode 100644
index 0000000..f55b71a
--- /dev/null
+++ b/drivers/memstick/host/tifm_ms.c
@@ -0,0 +1,685 @@
+/*
+ * TI FlashMedia driver
+ *
+ * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Special thanks to Carlos Corbacho for providing various MemoryStick cards
+ * that made this driver possible.
+ *
+ */
+
+#include <linux/tifm.h>
+#include <linux/memstick.h>
+#include <linux/highmem.h>
+#include <linux/scatterlist.h>
+#include <linux/log2.h>
+#include <asm/io.h>
+
+#define DRIVER_NAME "tifm_ms"
+#define DRIVER_VERSION "0.1"
+
+static int no_dma;
+module_param(no_dma, bool, 0644);
+
+#define TIFM_MS_TIMEOUT 0x00100
+#define TIFM_MS_BADCRC 0x00200
+#define TIFM_MS_EOTPC 0x01000
+#define TIFM_MS_INT 0x02000
+
+/* The meaning of the bit majority in this constant is unknown. */
+#define TIFM_MS_SERIAL 0x04010
+
+#define TIFM_MS_SYS_LATCH 0x00100
+#define TIFM_MS_SYS_NOT_RDY 0x00800
+#define TIFM_MS_SYS_DATA 0x10000
+
+/* Hardware flags */
+enum {
+ CMD_READY = 0x0001,
+ FIFO_READY = 0x0002,
+ CARD_READY = 0x0004,
+ DATA_CARRY = 0x0008
+};
+
+struct tifm_ms {
+ struct tifm_dev *dev;
+ unsigned short eject:1,
+ no_dma:1;
+ unsigned short cmd_flags;
+ unsigned int mode_mask;
+ unsigned int block_pos;
+ unsigned long timeout_jiffies;
+
+ struct timer_list timer;
+ struct memstick_request *req;
+ unsigned int io_word;
+};
+
+static void tifm_ms_read_fifo(struct tifm_ms *host, unsigned int fifo_offset,
+ struct page *pg, unsigned int page_off,
+ unsigned int length)
+{
+ struct tifm_dev *sock = host->dev;
+ unsigned int cnt = 0, off = 0;
+ unsigned char *buf = kmap_atomic(pg, KM_BIO_DST_IRQ) + page_off;
+
+ if (host->cmd_flags & DATA_CARRY) {
+ while ((fifo_offset & 3) && length) {
+ buf[off++] = host->io_word & 0xff;
+ host->io_word >>= 8;
+ length--;
+ fifo_offset++;
+ }
+ if (!(fifo_offset & 3))
+ host->cmd_flags &= ~DATA_CARRY;
+ if (!length)
+ return;
+ }
+
+ do {
+ host->io_word = readl(sock->addr + SOCK_FIFO_ACCESS
+ + fifo_offset);
+ cnt = 4;
+ while (length && cnt) {
+ buf[off++] = (host->io_word >> 8) & 0xff;
+ cnt--;
+ length--;
+ }
+ fifo_offset += 4 - cnt;
+ } while (length);
+
+ if (cnt)
+ host->cmd_flags |= DATA_CARRY;
+
+ kunmap_atomic(buf - page_off, KM_BIO_DST_IRQ);
+}
+
+static void tifm_ms_write_fifo(struct tifm_ms *host, unsigned int fifo_offset,
+ struct page *pg, unsigned int page_off,
+ unsigned int length)
+{
+ struct tifm_dev *sock = host->dev;
+ unsigned int cnt = 0, off = 0;
+ unsigned char *buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + page_off;
+
+ if (host->cmd_flags & DATA_CARRY) {
+ while (fifo_offset & 3) {
+ host->io_word |= buf[off++] << (8 * (fifo_offset & 3));
+ length--;
+ fifo_offset++;
+ }
+ if (!(fifo_offset & 3)) {
+ writel(host->io_word, sock->addr + SOCK_FIFO_ACCESS
+ + fifo_offset - 4);
+
+ host->cmd_flags &= ~DATA_CARRY;
+ }
+ if (!length)
+ return;
+ }
+
+ do {
+ cnt = 4;
+ host->io_word = 0;
+ while (length && cnt) {
+ host->io_word |= buf[off++] << (4 - cnt);
+ cnt--;
+ length--;
+ }
+ fifo_offset += 4 - cnt;
+ if (!cnt)
+ writel(host->io_word, sock->addr + SOCK_FIFO_ACCESS
+ + fifo_offset - 4);
+
+ } while (length);
+
+ if (cnt)
+ host->cmd_flags |= DATA_CARRY;
+
+ kunmap_atomic(buf - page_off, KM_BIO_SRC_IRQ);
+}
+
+static void tifm_ms_move_block(struct tifm_ms *host, unsigned int length)
+{
+ unsigned int t_size;
+ unsigned int off = host->req->sg.offset + host->block_pos;
+ unsigned int p_off, p_cnt;
+ struct page *pg;
+ unsigned long flags;
+
+ dev_dbg(&host->dev->dev, "moving block\n");
+ local_irq_save(flags);
+ t_size = length;
+ while (t_size) {
+ pg = nth_page(sg_page(&host->req->sg), off >> PAGE_SHIFT);
+ p_off = offset_in_page(off);
+ p_cnt = PAGE_SIZE - p_off;
+ p_cnt = min(p_cnt, t_size);
+
+ if (host->req->data_dir == WRITE)
+ tifm_ms_write_fifo(host, length - t_size,
+ pg, p_off, p_cnt);
+ else
+ tifm_ms_read_fifo(host, length - t_size,
+ pg, p_off, p_cnt);
+
+ t_size -= p_cnt;
+ }
+ local_irq_restore(flags);
+}
+
+static int tifm_ms_transfer_data(struct tifm_ms *host, int skip)
+{
+ struct tifm_dev *sock = host->dev;
+ unsigned int length = host->req->sg.length - host->block_pos;
+
+ if (!length)
+ return 1;
+
+ if (length > TIFM_FIFO_SIZE)
+ length = TIFM_FIFO_SIZE;
+
+ if (!skip) {
+ tifm_ms_move_block(host, length);
+ host->block_pos += length;
+ }
+
+ if ((host->req->data_dir == READ)
+ && (host->block_pos == host->req->sg.length))
+ return 1;
+
+ writel(ilog2(length) - 2, sock->addr + SOCK_FIFO_PAGE_SIZE);
+ if (host->req->data_dir == WRITE)
+ writel((1 << 8) | TIFM_DMA_TX, sock->addr + SOCK_DMA_CONTROL);
+ else
+ writel((1 << 8), sock->addr + SOCK_DMA_CONTROL);
+
+ return 0;
+}
+
+static int tifm_ms_issue_cmd(struct tifm_ms *host)
+{
+ struct tifm_dev *sock = host->dev;
+ unsigned char *data;
+ unsigned int data_len = 0, cmd = 0, cmd_mask = 0, cnt, tval = 0;
+
+ host->cmd_flags = 0;
+
+ if (host->req->io_type == MEMSTICK_IO_SG) {
+ if (!host->no_dma) {
+ if (1 != tifm_map_sg(sock, &host->req->sg, 1,
+ host->req->data_dir == READ
+ ? PCI_DMA_FROMDEVICE
+ : PCI_DMA_TODEVICE)) {
+ host->req->error = -ENOMEM;
+ return host->req->error;
+ }
+ data_len = sg_dma_len(&host->req->sg);
+ } else
+ data_len = host->req->sg.length;
+
+ writel(TIFM_FIFO_INT_SETALL,
+ sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR);
+ writel(TIFM_FIFO_ENABLE,
+ sock->addr + SOCK_FIFO_CONTROL);
+ writel(TIFM_FIFO_INTMASK,
+ sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET);
+
+ if (!host->no_dma) {
+ writel(ilog2(data_len) - 2,
+ sock->addr + SOCK_FIFO_PAGE_SIZE);
+ writel(sg_dma_address(&host->req->sg),
+ sock->addr + SOCK_DMA_ADDRESS);
+ if (host->req->data_dir == WRITE)
+ writel((1 << 8) | TIFM_DMA_TX | TIFM_DMA_EN,
+ sock->addr + SOCK_DMA_CONTROL);
+ else
+ writel((1 << 8) | TIFM_DMA_EN,
+ sock->addr + SOCK_DMA_CONTROL);
+ } else {
+ tifm_ms_transfer_data(host,
+ host->req->data_dir == READ);
+ }
+
+ cmd_mask = readl(sock->addr + SOCK_MS_SYSTEM);
+ cmd_mask |= TIFM_MS_SYS_DATA | TIFM_MS_SYS_NOT_RDY;
+ writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM);
+ } else if (host->req->io_type == MEMSTICK_IO_VAL) {
+ data = host->req->data;
+ data_len = host->req->data_len;
+
+ cmd_mask = host->mode_mask | 0x2607; /* unknown constant */
+
+ if (host->req->data_dir == WRITE) {
+ cmd_mask |= TIFM_MS_SYS_LATCH;
+ writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM);
+ for (cnt = 0; (data_len - cnt) >= 4; cnt += 4) {
+ writel(TIFM_MS_SYS_LATCH
+ | readl(sock->addr + SOCK_MS_SYSTEM),
+ sock->addr + SOCK_MS_SYSTEM);
+ __raw_writel(*(unsigned int *)(data + cnt),
+ sock->addr + SOCK_MS_DATA);
+ dev_dbg(&sock->dev, "writing %x\n",
+ *(int *)(data + cnt));
+ }
+ switch (data_len - cnt) {
+ case 3:
+ tval |= data[cnt + 2] << 16;
+ case 2:
+ tval |= data[cnt + 1] << 8;
+ case 1:
+ tval |= data[cnt];
+ writel(TIFM_MS_SYS_LATCH
+ | readl(sock->addr + SOCK_MS_SYSTEM),
+ sock->addr + SOCK_MS_SYSTEM);
+ writel(tval, sock->addr + SOCK_MS_DATA);
+ dev_dbg(&sock->dev, "writing %x\n", tval);
+ }
+
+ writel(TIFM_MS_SYS_LATCH
+ | readl(sock->addr + SOCK_MS_SYSTEM),
+ sock + SOCK_MS_SYSTEM);
+ writel(0, sock->addr + SOCK_MS_DATA);
+ dev_dbg(&sock->dev, "writing %x\n", 0);
+
+ } else
+ writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM);
+
+ cmd_mask = readl(sock->addr + SOCK_MS_SYSTEM);
+ cmd_mask &= ~TIFM_MS_SYS_DATA;
+ cmd_mask |= TIFM_MS_SYS_NOT_RDY;
+ dev_dbg(&sock->dev, "mask %x\n", cmd_mask);
+ writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM);
+ } else
+ BUG();
+
+ mod_timer(&host->timer, jiffies + host->timeout_jiffies);
+ writel(TIFM_CTRL_LED | readl(sock->addr + SOCK_CONTROL),
+ sock->addr + SOCK_CONTROL);
+ host->req->error = 0;
+
+ cmd = (host->req->tpc & 0xf) << 12;
+ cmd |= data_len;
+ writel(cmd, sock->addr + SOCK_MS_COMMAND);
+
+ dev_dbg(&sock->dev, "executing TPC %x, %x\n", cmd, cmd_mask);
+ return 0;
+}
+
+static void tifm_ms_complete_cmd(struct tifm_ms *host)
+{
+ struct tifm_dev *sock = host->dev;
+ struct memstick_host *msh = tifm_get_drvdata(sock);
+ unsigned int tval = 0, data_len;
+ unsigned char *data;
+ int rc;
+
+ del_timer(&host->timer);
+ if (host->req->io_type == MEMSTICK_IO_SG) {
+ if (!host->no_dma)
+ tifm_unmap_sg(sock, &host->req->sg, 1,
+ host->req->data_dir == READ
+ ? PCI_DMA_FROMDEVICE
+ : PCI_DMA_TODEVICE);
+ } else if (host->req->io_type == MEMSTICK_IO_VAL) {
+ writel(~TIFM_MS_SYS_DATA & readl(sock->addr + SOCK_MS_SYSTEM),
+ sock->addr + SOCK_MS_SYSTEM);
+
+ data = host->req->data;
+ data_len = host->req->data_len;
+
+ if (host->req->data_dir == READ) {
+ for (rc = 0; (data_len - rc) >= 4; rc += 4)
+ *(int *)(data + rc)
+ = __raw_readl(sock->addr
+ + SOCK_MS_DATA);
+
+ if (data_len - rc)
+ tval = readl(sock->addr + SOCK_MS_DATA);
+ switch (data_len - rc) {
+ case 3:
+ data[rc + 2] = (tval >> 16) & 0xff;
+ case 2:
+ data[rc + 1] = (tval >> 8) & 0xff;
+ case 1:
+ data[rc] = tval & 0xff;
+ }
+ readl(sock->addr + SOCK_MS_DATA);
+ }
+ }
+
+ writel((~TIFM_CTRL_LED) & readl(sock->addr + SOCK_CONTROL),
+ sock->addr + SOCK_CONTROL);
+
+ do {
+ rc = memstick_next_req(msh, &host->req);
+ } while (!rc && tifm_ms_issue_cmd(host));
+}
+
+static int tifm_ms_check_status(struct tifm_ms *host)
+{
+ if (!host->req->error) {
+ if (!(host->cmd_flags & CMD_READY))
+ return 1;
+ if ((host->req->io_type == MEMSTICK_IO_SG)
+ && !(host->cmd_flags & FIFO_READY))
+ return 1;
+ if (host->req->need_card_int
+ && !(host->cmd_flags & CARD_READY))
+ return 1;
+ }
+ return 0;
+}
+
+/* Called from interrupt handler */
+static void tifm_ms_data_event(struct tifm_dev *sock)
+{
+ struct tifm_ms *host;
+ unsigned int fifo_status = 0;
+ int rc = 1;
+
+ spin_lock(&sock->lock);
+ host = memstick_priv((struct memstick_host *)tifm_get_drvdata(sock));
+ fifo_status = readl(sock->addr + SOCK_DMA_FIFO_STATUS);
+ dev_dbg(&sock->dev, "data event: fifo_status %x, flags %x\n",
+ fifo_status, host->cmd_flags);
+
+ if (host->req) {
+ if (fifo_status & TIFM_FIFO_READY) {
+ if (!host->no_dma || tifm_ms_transfer_data(host, 0)) {
+ host->cmd_flags |= FIFO_READY;
+ rc = tifm_ms_check_status(host);
+ }
+ }
+ }
+
+ writel(fifo_status, sock->addr + SOCK_DMA_FIFO_STATUS);
+ if (!rc)
+ tifm_ms_complete_cmd(host);
+
+ spin_unlock(&sock->lock);
+}
+
+
+/* Called from interrupt handler */
+static void tifm_ms_card_event(struct tifm_dev *sock)
+{
+ struct tifm_ms *host;
+ unsigned int host_status = 0;
+ int rc = 1;
+
+ spin_lock(&sock->lock);
+ host = memstick_priv((struct memstick_host *)tifm_get_drvdata(sock));
+ host_status = readl(sock->addr + SOCK_MS_STATUS);
+ dev_dbg(&sock->dev, "host event: host_status %x, flags %x\n",
+ host_status, host->cmd_flags);
+
+ if (host->req) {
+ if (host_status & TIFM_MS_TIMEOUT)
+ host->req->error = -ETIME;
+ else if (host_status & TIFM_MS_BADCRC)
+ host->req->error = -EILSEQ;
+
+ if (host->req->error) {
+ writel(TIFM_FIFO_INT_SETALL,
+ sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR);
+ writel(TIFM_DMA_RESET, sock->addr + SOCK_DMA_CONTROL);
+ }
+
+ if (host_status & TIFM_MS_EOTPC)
+ host->cmd_flags |= CMD_READY;
+ if (host_status & TIFM_MS_INT)
+ host->cmd_flags |= CARD_READY;
+
+ rc = tifm_ms_check_status(host);
+
+ }
+
+ writel(TIFM_MS_SYS_NOT_RDY | readl(sock->addr + SOCK_MS_SYSTEM),
+ sock->addr + SOCK_MS_SYSTEM);
+ writel((~TIFM_MS_SYS_DATA) & readl(sock->addr + SOCK_MS_SYSTEM),
+ sock->addr + SOCK_MS_SYSTEM);
+
+ if (!rc)
+ tifm_ms_complete_cmd(host);
+
+ spin_unlock(&sock->lock);
+ return;
+}
+
+static void tifm_ms_request(struct memstick_host *msh)
+{
+ struct tifm_ms *host = memstick_priv(msh);
+ struct tifm_dev *sock = host->dev;
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&sock->lock, flags);
+ if (host->req) {
+ printk(KERN_ERR "%s : unfinished request detected\n",
+ sock->dev.bus_id);
+ spin_unlock_irqrestore(&sock->lock, flags);
+ tifm_eject(host->dev);
+ return;
+ }
+
+ if (host->eject) {
+ do {
+ rc = memstick_next_req(msh, &host->req);
+ if (!rc)
+ host->req->error = -ETIME;
+ } while (!rc);
+ spin_unlock_irqrestore(&sock->lock, flags);
+ return;
+ }
+
+ do {
+ rc = memstick_next_req(msh, &host->req);
+ } while (!rc && tifm_ms_issue_cmd(host));
+
+ spin_unlock_irqrestore(&sock->lock, flags);
+ return;
+}
+
+static void tifm_ms_set_param(struct memstick_host *msh,
+ enum memstick_param param,
+ int value)
+{
+ struct tifm_ms *host = memstick_priv(msh);
+ struct tifm_dev *sock = host->dev;
+ unsigned long flags;
+
+ spin_lock_irqsave(&sock->lock, flags);
+
+ switch (param) {
+ case MEMSTICK_POWER:
+ /* this is set by card detection mechanism */
+ break;
+ case MEMSTICK_INTERFACE:
+ if (value == MEMSTICK_SERIAL) {
+ host->mode_mask = TIFM_MS_SERIAL;
+ writel((~TIFM_CTRL_FAST_CLK)
+ & readl(sock->addr + SOCK_CONTROL),
+ sock->addr + SOCK_CONTROL);
+ } else if (value == MEMSTICK_PARALLEL) {
+ host->mode_mask = 0;
+ writel(TIFM_CTRL_FAST_CLK
+ | readl(sock->addr + SOCK_CONTROL),
+ sock->addr + SOCK_CONTROL);
+ }
+ break;
+ };
+
+ spin_unlock_irqrestore(&sock->lock, flags);
+}
+
+static void tifm_ms_abort(unsigned long data)
+{
+ struct tifm_ms *host = (struct tifm_ms *)data;
+
+ dev_dbg(&host->dev->dev, "status %x\n",
+ readl(host->dev->addr + SOCK_MS_STATUS));
+ printk(KERN_ERR
+ "%s : card failed to respond for a long period of time "
+ "(%x, %x)\n",
+ host->dev->dev.bus_id, host->req ? host->req->tpc : 0,
+ host->cmd_flags);
+
+ tifm_eject(host->dev);
+}
+
+static int tifm_ms_initialize_host(struct tifm_ms *host)
+{
+ struct tifm_dev *sock = host->dev;
+ struct memstick_host *msh = tifm_get_drvdata(sock);
+
+ host->mode_mask = TIFM_MS_SERIAL;
+ writel(0x8000, sock->addr + SOCK_MS_SYSTEM);
+ writel(0x0200 | TIFM_MS_SYS_NOT_RDY, sock->addr + SOCK_MS_SYSTEM);
+ writel(0xffffffff, sock->addr + SOCK_MS_STATUS);
+ if (tifm_has_ms_pif(sock))
+ msh->caps |= MEMSTICK_CAP_PARALLEL;
+
+ return 0;
+}
+
+static int tifm_ms_probe(struct tifm_dev *sock)
+{
+ struct memstick_host *msh;
+ struct tifm_ms *host;
+ int rc = -EIO;
+
+ if (!(TIFM_SOCK_STATE_OCCUPIED
+ & readl(sock->addr + SOCK_PRESENT_STATE))) {
+ printk(KERN_WARNING "%s : card gone, unexpectedly\n",
+ sock->dev.bus_id);
+ return rc;
+ }
+
+ msh = memstick_alloc_host(sizeof(struct tifm_ms), &sock->dev);
+ if (!msh)
+ return -ENOMEM;
+
+ host = memstick_priv(msh);
+ tifm_set_drvdata(sock, msh);
+ host->dev = sock;
+ host->timeout_jiffies = msecs_to_jiffies(1000);
+ host->no_dma = no_dma;
+
+ setup_timer(&host->timer, tifm_ms_abort, (unsigned long)host);
+
+ msh->request = tifm_ms_request;
+ msh->set_param = tifm_ms_set_param;
+ sock->card_event = tifm_ms_card_event;
+ sock->data_event = tifm_ms_data_event;
+ rc = tifm_ms_initialize_host(host);
+
+ if (!rc)
+ rc = memstick_add_host(msh);
+ if (!rc)
+ return 0;
+
+ memstick_free_host(msh);
+ return rc;
+}
+
+static void tifm_ms_remove(struct tifm_dev *sock)
+{
+ struct memstick_host *msh = tifm_get_drvdata(sock);
+ struct tifm_ms *host = memstick_priv(msh);
+ int rc = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&sock->lock, flags);
+ host->eject = 1;
+ if (host->req) {
+ del_timer(&host->timer);
+ writel(TIFM_FIFO_INT_SETALL,
+ sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR);
+ writel(TIFM_DMA_RESET, sock->addr + SOCK_DMA_CONTROL);
+ if ((host->req->io_type == MEMSTICK_IO_SG) && !host->no_dma)
+ tifm_unmap_sg(sock, &host->req->sg, 1,
+ host->req->data_dir == READ
+ ? PCI_DMA_TODEVICE
+ : PCI_DMA_FROMDEVICE);
+ host->req->error = -ETIME;
+
+ do {
+ rc = memstick_next_req(msh, &host->req);
+ if (!rc)
+ host->req->error = -ETIME;
+ } while (!rc);
+ }
+ spin_unlock_irqrestore(&sock->lock, flags);
+
+ memstick_remove_host(msh);
+
+ writel(0x0200 | TIFM_MS_SYS_NOT_RDY, sock->addr + SOCK_MS_SYSTEM);
+ writel(0xffffffff, sock->addr + SOCK_MS_STATUS);
+
+ memstick_free_host(msh);
+}
+
+#ifdef CONFIG_PM
+
+static int tifm_ms_suspend(struct tifm_dev *sock, pm_message_t state)
+{
+ return 0;
+}
+
+static int tifm_ms_resume(struct tifm_dev *sock)
+{
+ struct memstick_host *msh = tifm_get_drvdata(sock);
+ struct tifm_ms *host = memstick_priv(msh);
+
+ tifm_ms_initialize_host(host);
+ memstick_detect_change(msh);
+
+ return 0;
+}
+
+#else
+
+#define tifm_ms_suspend NULL
+#define tifm_ms_resume NULL
+
+#endif /* CONFIG_PM */
+
+static struct tifm_device_id tifm_ms_id_tbl[] = {
+ { TIFM_TYPE_MS }, { 0 }
+};
+
+static struct tifm_driver tifm_ms_driver = {
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE
+ },
+ .id_table = tifm_ms_id_tbl,
+ .probe = tifm_ms_probe,
+ .remove = tifm_ms_remove,
+ .suspend = tifm_ms_suspend,
+ .resume = tifm_ms_resume
+};
+
+static int __init tifm_ms_init(void)
+{
+ return tifm_register_driver(&tifm_ms_driver);
+}
+
+static void __exit tifm_ms_exit(void)
+{
+ tifm_unregister_driver(&tifm_ms_driver);
+}
+
+MODULE_AUTHOR("Alex Dubov");
+MODULE_DESCRIPTION("TI FlashMedia MemoryStick driver");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(tifm, tifm_ms_id_tbl);
+MODULE_VERSION(DRIVER_VERSION);
+
+module_init(tifm_ms_init);
+module_exit(tifm_ms_exit);
diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
index 54380da..63a089b 100644
--- a/drivers/misc/tifm_7xx1.c
+++ b/drivers/misc/tifm_7xx1.c
@@ -302,6 +302,21 @@
#endif /* CONFIG_PM */
+static int tifm_7xx1_dummy_has_ms_pif(struct tifm_adapter *fm,
+ struct tifm_dev *sock)
+{
+ return 0;
+}
+
+static int tifm_7xx1_has_ms_pif(struct tifm_adapter *fm, struct tifm_dev *sock)
+{
+ if (((fm->num_sockets == 4) && (sock->socket_id == 2))
+ || ((fm->num_sockets == 2) && (sock->socket_id == 0)))
+ return 1;
+
+ return 0;
+}
+
static int tifm_7xx1_probe(struct pci_dev *dev,
const struct pci_device_id *dev_id)
{
@@ -336,6 +351,7 @@
INIT_WORK(&fm->media_switcher, tifm_7xx1_switch_media);
fm->eject = tifm_7xx1_eject;
+ fm->has_ms_pif = tifm_7xx1_has_ms_pif;
pci_set_drvdata(dev, fm);
fm->addr = ioremap(pci_resource_start(dev, 0),
@@ -377,6 +393,7 @@
int cnt;
fm->eject = tifm_7xx1_dummy_eject;
+ fm->has_ms_pif = tifm_7xx1_dummy_has_ms_pif;
writel(TIFM_IRQ_SETALL, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
mmiowb();
free_irq(dev->irq, fm);
diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c
index 9754405..82dc72a1 100644
--- a/drivers/misc/tifm_core.c
+++ b/drivers/misc/tifm_core.c
@@ -284,6 +284,13 @@
}
EXPORT_SYMBOL(tifm_eject);
+int tifm_has_ms_pif(struct tifm_dev *sock)
+{
+ struct tifm_adapter *fm = dev_get_drvdata(sock->dev.parent);
+ return fm->has_ms_pif(fm, sock);
+}
+EXPORT_SYMBOL(tifm_has_ms_pif);
+
int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
int direction)
{
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index d0549cb..5222345 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -12,6 +12,7 @@
#include <linux/pagemap.h>
#include <linux/statfs.h>
#include <linux/seq_file.h>
+#include <linux/mount.h>
#include "hostfs.h"
#include "init.h"
#include "kern.h"
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 683002fe..f32fbde 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -18,12 +18,12 @@
/**
* vfs_ioctl - call filesystem specific ioctl methods
- * @filp: [in] open file to invoke ioctl method on
- * @cmd: [in] ioctl command to execute
- * @arg: [in/out] command-specific argument for ioctl
+ * @filp: open file to invoke ioctl method on
+ * @cmd: ioctl command to execute
+ * @arg: command-specific argument for ioctl
*
* Invokes filesystem specific ->unlocked_ioctl, if one exists; otherwise
- * invokes * filesystem specific ->ioctl method. If neither method exists,
+ * invokes filesystem specific ->ioctl method. If neither method exists,
* returns -ENOTTY.
*
* Returns 0 on success, -errno on error.
diff --git a/include/asm-blackfin/page.h b/include/asm-blackfin/page.h
index d5c9d14..c7db022 100644
--- a/include/asm-blackfin/page.h
+++ b/include/asm-blackfin/page.h
@@ -39,6 +39,7 @@
typedef struct {
unsigned long pgprot;
} pgprot_t;
+typedef struct page *pgtable_t;
#define pte_val(x) ((x).pte)
#define pmd_val(x) ((&x)->pmd[0])
diff --git a/include/asm-h8300/page.h b/include/asm-h8300/page.h
index a834924..d6a3eaf 100644
--- a/include/asm-h8300/page.h
+++ b/include/asm-h8300/page.h
@@ -31,6 +31,7 @@
typedef struct { unsigned long pmd[16]; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct page *pgtable_t;
#define pte_val(x) ((x).pte)
#define pmd_val(x) ((&x)->pmd[0])
diff --git a/include/asm-m68knommu/page.h b/include/asm-m68knommu/page.h
index 6af480c..1e82ebb7 100644
--- a/include/asm-m68knommu/page.h
+++ b/include/asm-m68knommu/page.h
@@ -31,6 +31,7 @@
typedef struct { unsigned long pmd[16]; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct page *pgtable_t;
#define pte_val(x) ((x).pte)
#define pmd_val(x) ((&x)->pmd[0])
diff --git a/include/asm-v850/page.h b/include/asm-v850/page.h
index 661d8cd..74a539a 100644
--- a/include/asm-v850/page.h
+++ b/include/asm-v850/page.h
@@ -57,6 +57,7 @@
typedef struct { unsigned long pmd; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct page *pgtable_t;
#define pte_val(x) ((x).pte)
#define pmd_val(x) ((x).pmd)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 9815951..925d57b 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -51,10 +51,8 @@
gfp_t gfp_mask);
int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem);
-static inline struct mem_cgroup *mm_cgroup(const struct mm_struct *mm)
-{
- return rcu_dereference(mm->mem_cgroup);
-}
+#define vm_match_cgroup(mm, cgroup) \
+ ((cgroup) == rcu_dereference((mm)->mem_cgroup))
extern int mem_cgroup_prepare_migration(struct page *page);
extern void mem_cgroup_end_migration(struct page *page);
@@ -123,9 +121,9 @@
return 0;
}
-static inline struct mem_cgroup *mm_cgroup(const struct mm_struct *mm)
+static inline int vm_match_cgroup(struct mm_struct *mm, struct mem_cgroup *mem)
{
- return NULL;
+ return 1;
}
static inline int task_in_mem_cgroup(struct task_struct *task,
diff --git a/include/linux/memstick.h b/include/linux/memstick.h
new file mode 100644
index 0000000..334d059
--- /dev/null
+++ b/include/linux/memstick.h
@@ -0,0 +1,299 @@
+/*
+ * Sony MemoryStick support
+ *
+ * Copyright (C) 2007 Alex Dubov <oakad@yahoo.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef _MEMSTICK_H
+#define _MEMSTICK_H
+
+#include <linux/workqueue.h>
+#include <linux/scatterlist.h>
+#include <linux/device.h>
+
+/*** Hardware based structures ***/
+
+struct ms_status_register {
+ unsigned char reserved;
+ unsigned char interrupt;
+#define MEMSTICK_INT_CMDNAK 0x0001
+#define MEMSTICK_INT_BREQ 0x0020
+#define MEMSTICK_INT_ERR 0x0040
+#define MEMSTICK_INT_CED 0x0080
+
+ unsigned char status0;
+#define MEMSTICK_STATUS0_WP 0x0001
+#define MEMSTICK_STATUS0_SL 0x0002
+#define MEMSTICK_STATUS0_BF 0x0010
+#define MEMSTICK_STATUS0_BE 0x0020
+#define MEMSTICK_STATUS0_FB0 0x0040
+#define MEMSTICK_STATUS0_MB 0x0080
+
+ unsigned char status1;
+#define MEMSTICK_STATUS1_UCFG 0x0001
+#define MEMSTICK_STATUS1_FGER 0x0002
+#define MEMSTICK_STATUS1_UCEX 0x0004
+#define MEMSTICK_STATUS1_EXER 0x0008
+#define MEMSTICK_STATUS1_UCDT 0x0010
+#define MEMSTICK_STATUS1_DTER 0x0020
+#define MEMSTICK_STATUS1_FBI 0x0040
+#define MEMSTICK_STATUS1_MB 0x0080
+} __attribute__((packed));
+
+struct ms_id_register {
+ unsigned char type;
+ unsigned char reserved;
+ unsigned char category;
+ unsigned char class;
+} __attribute__((packed));
+
+struct ms_param_register {
+ unsigned char system;
+ unsigned char block_address_msb;
+ unsigned short block_address;
+ unsigned char cp;
+#define MEMSTICK_CP_BLOCK 0x0000
+#define MEMSTICK_CP_PAGE 0x0020
+#define MEMSTICK_CP_EXTRA 0x0040
+#define MEMSTICK_CP_OVERWRITE 0x0080
+
+ unsigned char page_address;
+} __attribute__((packed));
+
+struct ms_extra_data_register {
+ unsigned char overwrite_flag;
+#define MEMSTICK_OVERWRITE_UPDATA 0x0010
+#define MEMSTICK_OVERWRITE_PAGE 0x0060
+#define MEMSTICK_OVERWRITE_BLOCK 0x0080
+
+ unsigned char management_flag;
+#define MEMSTICK_MANAGEMENT_SYSTEM 0x0004
+#define MEMSTICK_MANAGEMENT_TRANS_TABLE 0x0008
+#define MEMSTICK_MANAGEMENT_COPY 0x0010
+#define MEMSTICK_MANAGEMENT_ACCESS 0x0020
+
+ unsigned short logical_address;
+} __attribute__((packed));
+
+struct ms_register {
+ struct ms_status_register status;
+ struct ms_id_register id;
+ unsigned char reserved[8];
+ struct ms_param_register param;
+ struct ms_extra_data_register extra_data;
+} __attribute__((packed));
+
+struct mspro_param_register {
+ unsigned char system;
+ unsigned short data_count;
+ unsigned int data_address;
+ unsigned char cmd_param;
+} __attribute__((packed));
+
+struct mspro_register {
+ struct ms_status_register status;
+ struct ms_id_register id;
+ unsigned char reserved[8];
+ struct mspro_param_register param;
+} __attribute__((packed));
+
+struct ms_register_addr {
+ unsigned char r_offset;
+ unsigned char r_length;
+ unsigned char w_offset;
+ unsigned char w_length;
+} __attribute__((packed));
+
+enum {
+ MS_TPC_READ_LONG_DATA = 0x02,
+ MS_TPC_READ_SHORT_DATA = 0x03,
+ MS_TPC_READ_REG = 0x04,
+ MS_TPC_READ_IO_DATA = 0x05, /* unverified */
+ MS_TPC_GET_INT = 0x07,
+ MS_TPC_SET_RW_REG_ADRS = 0x08,
+ MS_TPC_EX_SET_CMD = 0x09,
+ MS_TPC_WRITE_IO_DATA = 0x0a, /* unverified */
+ MS_TPC_WRITE_REG = 0x0b,
+ MS_TPC_WRITE_SHORT_DATA = 0x0c,
+ MS_TPC_WRITE_LONG_DATA = 0x0d,
+ MS_TPC_SET_CMD = 0x0e
+};
+
+enum {
+ MS_CMD_BLOCK_END = 0x33,
+ MS_CMD_RESET = 0x3c,
+ MS_CMD_BLOCK_WRITE = 0x55,
+ MS_CMD_SLEEP = 0x5a,
+ MS_CMD_BLOCK_ERASE = 0x99,
+ MS_CMD_BLOCK_READ = 0xaa,
+ MS_CMD_CLEAR_BUF = 0xc3,
+ MS_CMD_FLASH_STOP = 0xcc,
+ MSPRO_CMD_FORMAT = 0x10,
+ MSPRO_CMD_SLEEP = 0x11,
+ MSPRO_CMD_READ_DATA = 0x20,
+ MSPRO_CMD_WRITE_DATA = 0x21,
+ MSPRO_CMD_READ_ATRB = 0x24,
+ MSPRO_CMD_STOP = 0x25,
+ MSPRO_CMD_ERASE = 0x26,
+ MSPRO_CMD_SET_IBA = 0x46,
+ MSPRO_CMD_SET_IBD = 0x47
+/*
+ MSPRO_CMD_RESET
+ MSPRO_CMD_WAKEUP
+ MSPRO_CMD_IN_IO_DATA
+ MSPRO_CMD_OUT_IO_DATA
+ MSPRO_CMD_READ_IO_ATRB
+ MSPRO_CMD_IN_IO_FIFO
+ MSPRO_CMD_OUT_IO_FIFO
+ MSPRO_CMD_IN_IOM
+ MSPRO_CMD_OUT_IOM
+*/
+};
+
+/*** Driver structures and functions ***/
+
+#define MEMSTICK_PART_SHIFT 3
+
+enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE };
+
+#define MEMSTICK_POWER_OFF 0
+#define MEMSTICK_POWER_ON 1
+
+#define MEMSTICK_SERIAL 0
+#define MEMSTICK_PARALLEL 1
+
+struct memstick_host;
+struct memstick_driver;
+
+#define MEMSTICK_MATCH_ALL 0x01
+
+#define MEMSTICK_TYPE_LEGACY 0xff
+#define MEMSTICK_TYPE_DUO 0x00
+#define MEMSTICK_TYPE_PRO 0x01
+
+#define MEMSTICK_CATEGORY_STORAGE 0xff
+#define MEMSTICK_CATEGORY_STORAGE_DUO 0x00
+
+#define MEMSTICK_CLASS_GENERIC 0xff
+#define MEMSTICK_CLASS_GENERIC_DUO 0x00
+
+
+struct memstick_device_id {
+ unsigned char match_flags;
+ unsigned char type;
+ unsigned char category;
+ unsigned char class;
+};
+
+struct memstick_request {
+ unsigned char tpc;
+ unsigned char data_dir:1,
+ need_card_int:1,
+ get_int_reg:1,
+ io_type:2;
+#define MEMSTICK_IO_NONE 0
+#define MEMSTICK_IO_VAL 1
+#define MEMSTICK_IO_SG 2
+
+ unsigned char int_reg;
+ int error;
+ union {
+ struct scatterlist sg;
+ struct {
+ unsigned char data_len;
+ unsigned char data[15];
+ };
+ };
+};
+
+struct memstick_dev {
+ struct memstick_device_id id;
+ struct memstick_host *host;
+ struct ms_register_addr reg_addr;
+ struct completion mrq_complete;
+ struct memstick_request current_mrq;
+
+ /* Check that media driver is still willing to operate the device. */
+ int (*check)(struct memstick_dev *card);
+ /* Get next request from the media driver. */
+ int (*next_request)(struct memstick_dev *card,
+ struct memstick_request **mrq);
+
+ struct device dev;
+};
+
+struct memstick_host {
+ struct mutex lock;
+ unsigned int id;
+ unsigned int caps;
+#define MEMSTICK_CAP_PARALLEL 1
+#define MEMSTICK_CAP_AUTO_GET_INT 2
+
+ struct work_struct media_checker;
+ struct class_device cdev;
+
+ struct memstick_dev *card;
+ unsigned int retries;
+
+ /* Notify the host that some requests are pending. */
+ void (*request)(struct memstick_host *host);
+ /* Set host IO parameters (power, clock, etc). */
+ void (*set_param)(struct memstick_host *host,
+ enum memstick_param param,
+ int value);
+ unsigned long private[0] ____cacheline_aligned;
+};
+
+struct memstick_driver {
+ struct memstick_device_id *id_table;
+ int (*probe)(struct memstick_dev *card);
+ void (*remove)(struct memstick_dev *card);
+ int (*suspend)(struct memstick_dev *card,
+ pm_message_t state);
+ int (*resume)(struct memstick_dev *card);
+
+ struct device_driver driver;
+};
+
+int memstick_register_driver(struct memstick_driver *drv);
+void memstick_unregister_driver(struct memstick_driver *drv);
+
+struct memstick_host *memstick_alloc_host(unsigned int extra,
+ struct device *dev);
+
+int memstick_add_host(struct memstick_host *host);
+void memstick_remove_host(struct memstick_host *host);
+void memstick_free_host(struct memstick_host *host);
+void memstick_detect_change(struct memstick_host *host);
+
+void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc,
+ struct scatterlist *sg);
+void memstick_init_req(struct memstick_request *mrq, unsigned char tpc,
+ void *buf, size_t length);
+int memstick_next_req(struct memstick_host *host,
+ struct memstick_request **mrq);
+void memstick_new_req(struct memstick_host *host);
+
+int memstick_set_rw_addr(struct memstick_dev *card);
+
+static inline void *memstick_priv(struct memstick_host *host)
+{
+ return (void *)host->private;
+}
+
+static inline void *memstick_get_drvdata(struct memstick_dev *card)
+{
+ return dev_get_drvdata(&card->dev);
+}
+
+static inline void memstick_set_drvdata(struct memstick_dev *card, void *data)
+{
+ dev_set_drvdata(&card->dev, data);
+}
+
+#endif
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index 7bf2d14..6ec39ab 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -42,11 +42,13 @@
return entry.val & SWP_OFFSET_MASK(entry);
}
+#ifdef CONFIG_MMU
/* check whether a pte points to a swap entry */
static inline int is_swap_pte(pte_t pte)
{
return !pte_none(pte) && !pte_present(pte) && !pte_file(pte);
}
+#endif
/*
* Convert the arch-dependent pte representation of a swp_entry_t into an
diff --git a/include/linux/tifm.h b/include/linux/tifm.h
index 2096b76..da76ed8 100644
--- a/include/linux/tifm.h
+++ b/include/linux/tifm.h
@@ -72,6 +72,7 @@
#define TIFM_FIFO_READY 0x00000001
#define TIFM_FIFO_INT_SETALL 0x0000ffff
#define TIFM_FIFO_INTMASK 0x00000005
+#define TIFM_FIFO_SIZE 0x00000200
#define TIFM_DMA_RESET 0x00000002
#define TIFM_DMA_TX 0x00008000
@@ -124,6 +125,8 @@
void (*eject)(struct tifm_adapter *fm,
struct tifm_dev *sock);
+ int (*has_ms_pif)(struct tifm_adapter *fm,
+ struct tifm_dev *sock);
struct tifm_dev *sockets[0];
};
@@ -141,6 +144,7 @@
int tifm_register_driver(struct tifm_driver *drv);
void tifm_unregister_driver(struct tifm_driver *drv);
void tifm_eject(struct tifm_dev *sock);
+int tifm_has_ms_pif(struct tifm_dev *sock);
int tifm_map_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
int direction);
void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 5c2c702..6bded84 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -399,7 +399,7 @@
int ret;
task_lock(task);
- ret = task->mm && mm_cgroup(task->mm) == mem;
+ ret = task->mm && vm_match_cgroup(task->mm, mem);
task_unlock(task);
return ret;
}
diff --git a/mm/rmap.c b/mm/rmap.c
index a0e92a2..8fd527c 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -321,7 +321,7 @@
* counting on behalf of references from different
* cgroups
*/
- if (mem_cont && (mm_cgroup(vma->vm_mm) != mem_cont))
+ if (mem_cont && !vm_match_cgroup(vma->vm_mm, mem_cont))
continue;
referenced += page_referenced_one(page, vma, &mapcount);
if (!mapcount)
@@ -382,7 +382,7 @@
* counting on behalf of references from different
* cgroups
*/
- if (mem_cont && (mm_cgroup(vma->vm_mm) != mem_cont))
+ if (mem_cont && !vm_match_cgroup(vma->vm_mm, mem_cont))
continue;
if ((vma->vm_flags & (VM_LOCKED|VM_MAYSHARE))
== (VM_LOCKED|VM_MAYSHARE)) {
