forked from Minki/linux
USB: g_file_storage: "fsg_" prefix added to some identifiers
Prefixed some identifiers that were defined in storage_common.c file with "fsg_". Not all identifiers were prefixed but the ones that are most likely to produce conflicts when used with other USB functions. Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Michal Nazarewicz
Greg Kroah-Hartman
parent
b6058d0fef
commit
d6181702f5
@ -248,8 +248,6 @@
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#include <linux/freezer.h>
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#include <linux/utsname.h>
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#include <asm/unaligned.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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@ -274,8 +272,11 @@
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#define DRIVER_NAME "g_file_storage"
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#define DRIVER_VERSION "20 November 2008"
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static const char longname[] = DRIVER_DESC;
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static const char shortname[] = DRIVER_NAME;
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static char fsg_string_manufacturer[64];
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static const char fsg_string_product[] = DRIVER_DESC;
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static char fsg_string_serial[13];
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static const char fsg_string_config[] = "Self-powered";
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static const char fsg_string_interface[] = "Mass Storage";
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_AUTHOR("Alan Stern");
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@ -285,8 +286,8 @@ MODULE_LICENSE("Dual BSD/GPL");
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*
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* DO NOT REUSE THESE IDs with any other driver!! Ever!!
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* Instead: allocate your own, using normal USB-IF procedures. */
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#define DRIVER_VENDOR_ID 0x0525 // NetChip
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#define DRIVER_PRODUCT_ID 0xa4a5 // Linux-USB File-backed Storage Gadget
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#define FSG_VENDOR_ID 0x0525 // NetChip
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#define FSG_PRODUCT_ID 0xa4a5 // Linux-USB File-backed Storage Gadget
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/*
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@ -301,11 +302,11 @@ MODULE_LICENSE("Dual BSD/GPL");
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/* Encapsulate the module parameter settings */
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#define MAX_LUNS 8
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#define FSG_MAX_LUNS 8
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static struct {
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char *file[MAX_LUNS];
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int ro[MAX_LUNS];
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char *file[FSG_MAX_LUNS];
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int ro[FSG_MAX_LUNS];
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unsigned int num_filenames;
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unsigned int num_ros;
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unsigned int nluns;
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@ -332,8 +333,8 @@ static struct {
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.removable = 0,
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.can_stall = 1,
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.cdrom = 0,
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.vendor = DRIVER_VENDOR_ID,
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.product = DRIVER_PRODUCT_ID,
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.vendor = FSG_VENDOR_ID,
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.product = FSG_PRODUCT_ID,
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.release = 0xffff, // Use controller chip type
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.buflen = 16384,
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};
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@ -434,7 +435,7 @@ struct fsg_dev {
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int intreq_busy;
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struct fsg_buffhd *intr_buffhd;
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unsigned int bulk_out_maxpacket;
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unsigned int bulk_out_maxpacket;
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enum fsg_state state; // For exception handling
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unsigned int exception_req_tag;
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@ -459,7 +460,7 @@ struct fsg_dev {
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struct fsg_buffhd *next_buffhd_to_fill;
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struct fsg_buffhd *next_buffhd_to_drain;
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struct fsg_buffhd buffhds[NUM_BUFFERS];
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struct fsg_buffhd buffhds[FSG_NUM_BUFFERS];
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int thread_wakeup_needed;
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struct completion thread_notifier;
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@ -484,8 +485,8 @@ struct fsg_dev {
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u8 cbbuf_cmnd[MAX_COMMAND_SIZE];
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unsigned int nluns;
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struct lun *luns;
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struct lun *curlun;
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struct fsg_lun *luns;
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struct fsg_lun *curlun;
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};
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typedef void (*fsg_routine_t)(struct fsg_dev *);
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@ -549,13 +550,13 @@ device_desc = {
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.bDeviceClass = USB_CLASS_PER_INTERFACE,
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/* The next three values can be overridden by module parameters */
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.idVendor = cpu_to_le16(DRIVER_VENDOR_ID),
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.idProduct = cpu_to_le16(DRIVER_PRODUCT_ID),
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.idVendor = cpu_to_le16(FSG_VENDOR_ID),
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.idProduct = cpu_to_le16(FSG_PRODUCT_ID),
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.bcdDevice = cpu_to_le16(0xffff),
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.iManufacturer = STRING_MANUFACTURER,
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.iProduct = STRING_PRODUCT,
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.iSerialNumber = STRING_SERIAL,
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.iManufacturer = FSG_STRING_MANUFACTURER,
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.iProduct = FSG_STRING_PRODUCT,
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.iSerialNumber = FSG_STRING_SERIAL,
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.bNumConfigurations = 1,
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};
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@ -567,7 +568,7 @@ config_desc = {
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/* wTotalLength computed by usb_gadget_config_buf() */
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.bNumInterfaces = 1,
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.bConfigurationValue = CONFIG_VALUE,
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.iConfiguration = STRING_CONFIG,
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.iConfiguration = FSG_STRING_CONFIG,
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.bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
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.bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2,
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};
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@ -604,9 +605,9 @@ static int populate_config_buf(struct usb_gadget *gadget,
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if (gadget_is_dualspeed(gadget) && type == USB_DT_OTHER_SPEED_CONFIG)
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speed = (USB_SPEED_FULL + USB_SPEED_HIGH) - speed;
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if (gadget_is_dualspeed(gadget) && speed == USB_SPEED_HIGH)
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function = hs_function;
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function = fsg_hs_function;
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else
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function = fs_function;
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function = fsg_fs_function;
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/* for now, don't advertise srp-only devices */
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if (!gadget_is_otg(gadget))
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@ -957,7 +958,7 @@ get_config:
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VDBG(fsg, "get string descriptor\n");
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/* wIndex == language code */
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value = usb_gadget_get_string(&stringtab,
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value = usb_gadget_get_string(&fsg_stringtab,
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w_value & 0xff, req->buf);
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break;
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}
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@ -1122,7 +1123,7 @@ static int sleep_thread(struct fsg_dev *fsg)
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static int do_read(struct fsg_dev *fsg)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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u32 lba;
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struct fsg_buffhd *bh;
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int rc;
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@ -1248,7 +1249,7 @@ static int do_read(struct fsg_dev *fsg)
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static int do_write(struct fsg_dev *fsg)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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u32 lba;
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struct fsg_buffhd *bh;
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int get_some_more;
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@ -1437,12 +1438,12 @@ static int do_write(struct fsg_dev *fsg)
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static int do_synchronize_cache(struct fsg_dev *fsg)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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int rc;
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/* We ignore the requested LBA and write out all file's
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* dirty data buffers. */
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rc = fsync_sub(curlun);
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rc = fsg_lun_fsync_sub(curlun);
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if (rc)
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curlun->sense_data = SS_WRITE_ERROR;
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return 0;
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@ -1451,7 +1452,7 @@ static int do_synchronize_cache(struct fsg_dev *fsg)
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/*-------------------------------------------------------------------------*/
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static void invalidate_sub(struct lun *curlun)
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static void invalidate_sub(struct fsg_lun *curlun)
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{
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struct file *filp = curlun->filp;
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struct inode *inode = filp->f_path.dentry->d_inode;
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@ -1463,7 +1464,7 @@ static void invalidate_sub(struct lun *curlun)
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static int do_verify(struct fsg_dev *fsg)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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u32 lba;
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u32 verification_length;
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struct fsg_buffhd *bh = fsg->next_buffhd_to_fill;
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@ -1496,7 +1497,7 @@ static int do_verify(struct fsg_dev *fsg)
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file_offset = ((loff_t) lba) << 9;
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/* Write out all the dirty buffers before invalidating them */
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fsync_sub(curlun);
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fsg_lun_fsync_sub(curlun);
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if (signal_pending(current))
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return -EINTR;
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@ -1593,7 +1594,7 @@ static int do_inquiry(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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static int do_request_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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u8 *buf = (u8 *) bh->buf;
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u32 sd, sdinfo;
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int valid;
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@ -1647,7 +1648,7 @@ static int do_request_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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static int do_read_capacity(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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u32 lba = get_unaligned_be32(&fsg->cmnd[2]);
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int pmi = fsg->cmnd[8];
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u8 *buf = (u8 *) bh->buf;
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@ -1667,7 +1668,7 @@ static int do_read_capacity(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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static int do_read_header(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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int msf = fsg->cmnd[1] & 0x02;
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u32 lba = get_unaligned_be32(&fsg->cmnd[2]);
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u8 *buf = (u8 *) bh->buf;
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@ -1690,7 +1691,7 @@ static int do_read_header(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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static int do_read_toc(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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int msf = fsg->cmnd[1] & 0x02;
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int start_track = fsg->cmnd[6];
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u8 *buf = (u8 *) bh->buf;
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@ -1718,7 +1719,7 @@ static int do_read_toc(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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static int do_mode_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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int mscmnd = fsg->cmnd[0];
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u8 *buf = (u8 *) bh->buf;
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u8 *buf0 = buf;
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@ -1799,7 +1800,7 @@ static int do_mode_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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static int do_start_stop(struct fsg_dev *fsg)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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int loej, start;
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if (!mod_data.removable) {
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@ -1829,7 +1830,7 @@ static int do_start_stop(struct fsg_dev *fsg)
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if (loej) { // Simulate an unload/eject
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up_read(&fsg->filesem);
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down_write(&fsg->filesem);
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close_backing_file(curlun);
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fsg_lun_close(curlun);
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up_write(&fsg->filesem);
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down_read(&fsg->filesem);
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}
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@ -1837,7 +1838,7 @@ static int do_start_stop(struct fsg_dev *fsg)
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/* Our emulation doesn't support mounting; the medium is
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* available for use as soon as it is loaded. */
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if (!backing_file_is_open(curlun)) {
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if (!fsg_lun_is_open(curlun)) {
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curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
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return -EINVAL;
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}
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@ -1849,7 +1850,7 @@ static int do_start_stop(struct fsg_dev *fsg)
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static int do_prevent_allow(struct fsg_dev *fsg)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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int prevent;
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if (!mod_data.removable) {
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@ -1864,7 +1865,7 @@ static int do_prevent_allow(struct fsg_dev *fsg)
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}
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if (curlun->prevent_medium_removal && !prevent)
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fsync_sub(curlun);
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fsg_lun_fsync_sub(curlun);
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curlun->prevent_medium_removal = prevent;
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return 0;
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}
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@ -1873,7 +1874,7 @@ static int do_prevent_allow(struct fsg_dev *fsg)
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static int do_read_format_capacities(struct fsg_dev *fsg,
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struct fsg_buffhd *bh)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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u8 *buf = (u8 *) bh->buf;
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buf[0] = buf[1] = buf[2] = 0;
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@ -1890,7 +1891,7 @@ static int do_read_format_capacities(struct fsg_dev *fsg,
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static int do_mode_select(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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/* We don't support MODE SELECT */
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curlun->sense_data = SS_INVALID_COMMAND;
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@ -2133,7 +2134,7 @@ static int finish_reply(struct fsg_dev *fsg)
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static int send_status(struct fsg_dev *fsg)
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{
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struct lun *curlun = fsg->curlun;
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struct fsg_lun *curlun = fsg->curlun;
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struct fsg_buffhd *bh;
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int rc;
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u8 status = USB_STATUS_PASS;
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@ -2225,7 +2226,7 @@ static int check_command(struct fsg_dev *fsg, int cmnd_size,
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int lun = fsg->cmnd[1] >> 5;
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static const char dirletter[4] = {'u', 'o', 'i', 'n'};
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char hdlen[20];
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struct lun *curlun;
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struct fsg_lun *curlun;
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/* Adjust the expected cmnd_size for protocol encapsulation padding.
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* Transparent SCSI doesn't pad. */
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@ -2354,7 +2355,7 @@ static int check_command(struct fsg_dev *fsg, int cmnd_size,
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/* If the medium isn't mounted and the command needs to access
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* it, return an error. */
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if (curlun && !backing_file_is_open(curlun) && needs_medium) {
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if (curlun && !fsg_lun_is_open(curlun) && needs_medium) {
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curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
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return -EINVAL;
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}
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@ -2609,8 +2610,8 @@ static int do_scsi_command(struct fsg_dev *fsg)
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static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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{
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struct usb_request *req = bh->outreq;
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struct bulk_cb_wrap *cbw = req->buf;
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struct usb_request *req = bh->outreq;
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struct fsg_bulk_cb_wrap *cbw = req->buf;
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/* Was this a real packet? Should it be ignored? */
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if (req->status || test_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags))
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@ -2639,7 +2640,7 @@ static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
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}
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/* Is the CBW meaningful? */
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if (cbw->Lun >= MAX_LUNS || cbw->Flags & ~USB_BULK_IN_FLAG ||
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if (cbw->Lun >= FSG_MAX_LUNS || cbw->Flags & ~USB_BULK_IN_FLAG ||
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cbw->Length <= 0 || cbw->Length > MAX_COMMAND_SIZE) {
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DBG(fsg, "non-meaningful CBW: lun = %u, flags = 0x%x, "
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"cmdlen %u\n",
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@ -2772,7 +2773,7 @@ static int do_set_interface(struct fsg_dev *fsg, int altsetting)
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reset:
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/* Deallocate the requests */
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for (i = 0; i < NUM_BUFFERS; ++i) {
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for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
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struct fsg_buffhd *bh = &fsg->buffhds[i];
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if (bh->inreq) {
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@ -2810,12 +2811,14 @@ reset:
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DBG(fsg, "set interface %d\n", altsetting);
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/* Enable the endpoints */
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d = ep_desc(fsg->gadget, &fs_bulk_in_desc, &hs_bulk_in_desc);
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d = fsg_ep_desc(fsg->gadget,
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&fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc);
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if ((rc = enable_endpoint(fsg, fsg->bulk_in, d)) != 0)
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goto reset;
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fsg->bulk_in_enabled = 1;
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d = ep_desc(fsg->gadget, &fs_bulk_out_desc, &hs_bulk_out_desc);
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d = fsg_ep_desc(fsg->gadget,
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&fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc);
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if ((rc = enable_endpoint(fsg, fsg->bulk_out, d)) != 0)
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goto reset;
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fsg->bulk_out_enabled = 1;
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@ -2823,14 +2826,15 @@ reset:
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clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
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if (transport_is_cbi()) {
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d = ep_desc(fsg->gadget, &fs_intr_in_desc, &hs_intr_in_desc);
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d = fsg_ep_desc(fsg->gadget,
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&fsg_fs_intr_in_desc, &fsg_hs_intr_in_desc);
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if ((rc = enable_endpoint(fsg, fsg->intr_in, d)) != 0)
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goto reset;
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fsg->intr_in_enabled = 1;
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}
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||||
|
||||
/* Allocate the requests */
|
||||
for (i = 0; i < NUM_BUFFERS; ++i) {
|
||||
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
|
||||
struct fsg_buffhd *bh = &fsg->buffhds[i];
|
||||
|
||||
if ((rc = alloc_request(fsg, fsg->bulk_in, &bh->inreq)) != 0)
|
||||
@ -2906,7 +2910,7 @@ static void handle_exception(struct fsg_dev *fsg)
|
||||
struct fsg_buffhd *bh;
|
||||
enum fsg_state old_state;
|
||||
u8 new_config;
|
||||
struct lun *curlun;
|
||||
struct fsg_lun *curlun;
|
||||
unsigned int exception_req_tag;
|
||||
int rc;
|
||||
|
||||
@ -2926,7 +2930,7 @@ static void handle_exception(struct fsg_dev *fsg)
|
||||
/* Cancel all the pending transfers */
|
||||
if (fsg->intreq_busy)
|
||||
usb_ep_dequeue(fsg->intr_in, fsg->intreq);
|
||||
for (i = 0; i < NUM_BUFFERS; ++i) {
|
||||
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
|
||||
bh = &fsg->buffhds[i];
|
||||
if (bh->inreq_busy)
|
||||
usb_ep_dequeue(fsg->bulk_in, bh->inreq);
|
||||
@ -2937,7 +2941,7 @@ static void handle_exception(struct fsg_dev *fsg)
|
||||
/* Wait until everything is idle */
|
||||
for (;;) {
|
||||
num_active = fsg->intreq_busy;
|
||||
for (i = 0; i < NUM_BUFFERS; ++i) {
|
||||
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
|
||||
bh = &fsg->buffhds[i];
|
||||
num_active += bh->inreq_busy + bh->outreq_busy;
|
||||
}
|
||||
@ -2959,7 +2963,7 @@ static void handle_exception(struct fsg_dev *fsg)
|
||||
* state, and the exception. Then invoke the handler. */
|
||||
spin_lock_irq(&fsg->lock);
|
||||
|
||||
for (i = 0; i < NUM_BUFFERS; ++i) {
|
||||
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
|
||||
bh = &fsg->buffhds[i];
|
||||
bh->state = BUF_STATE_EMPTY;
|
||||
}
|
||||
@ -3041,7 +3045,7 @@ static void handle_exception(struct fsg_dev *fsg)
|
||||
|
||||
case FSG_STATE_DISCONNECT:
|
||||
for (i = 0; i < fsg->nluns; ++i)
|
||||
fsync_sub(fsg->luns + i);
|
||||
fsg_lun_fsync_sub(fsg->luns + i);
|
||||
do_set_config(fsg, 0); // Unconfigured state
|
||||
break;
|
||||
|
||||
@ -3132,7 +3136,7 @@ static int fsg_main_thread(void *fsg_)
|
||||
|
||||
static ssize_t show_ro(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct lun *curlun = dev_to_lun(dev);
|
||||
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
|
||||
|
||||
return sprintf(buf, "%d\n", curlun->ro);
|
||||
}
|
||||
@ -3140,13 +3144,13 @@ static ssize_t show_ro(struct device *dev, struct device_attribute *attr, char *
|
||||
static ssize_t show_file(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct lun *curlun = dev_to_lun(dev);
|
||||
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
|
||||
struct fsg_dev *fsg = dev_get_drvdata(dev);
|
||||
char *p;
|
||||
ssize_t rc;
|
||||
|
||||
down_read(&fsg->filesem);
|
||||
if (backing_file_is_open(curlun)) { // Get the complete pathname
|
||||
if (fsg_lun_is_open(curlun)) { // Get the complete pathname
|
||||
p = d_path(&curlun->filp->f_path, buf, PAGE_SIZE - 1);
|
||||
if (IS_ERR(p))
|
||||
rc = PTR_ERR(p);
|
||||
@ -3169,7 +3173,7 @@ static ssize_t store_ro(struct device *dev, struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
ssize_t rc = count;
|
||||
struct lun *curlun = dev_to_lun(dev);
|
||||
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
|
||||
struct fsg_dev *fsg = dev_get_drvdata(dev);
|
||||
int i;
|
||||
|
||||
@ -3179,7 +3183,7 @@ static ssize_t store_ro(struct device *dev, struct device_attribute *attr,
|
||||
/* Allow the write-enable status to change only while the backing file
|
||||
* is closed. */
|
||||
down_read(&fsg->filesem);
|
||||
if (backing_file_is_open(curlun)) {
|
||||
if (fsg_lun_is_open(curlun)) {
|
||||
LDBG(curlun, "read-only status change prevented\n");
|
||||
rc = -EBUSY;
|
||||
} else {
|
||||
@ -3193,11 +3197,11 @@ static ssize_t store_ro(struct device *dev, struct device_attribute *attr,
|
||||
static ssize_t store_file(struct device *dev, struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct lun *curlun = dev_to_lun(dev);
|
||||
struct fsg_lun *curlun = fsg_lun_from_dev(dev);
|
||||
struct fsg_dev *fsg = dev_get_drvdata(dev);
|
||||
int rc = 0;
|
||||
|
||||
if (curlun->prevent_medium_removal && backing_file_is_open(curlun)) {
|
||||
if (curlun->prevent_medium_removal && fsg_lun_is_open(curlun)) {
|
||||
LDBG(curlun, "eject attempt prevented\n");
|
||||
return -EBUSY; // "Door is locked"
|
||||
}
|
||||
@ -3208,14 +3212,14 @@ static ssize_t store_file(struct device *dev, struct device_attribute *attr,
|
||||
|
||||
/* Eject current medium */
|
||||
down_write(&fsg->filesem);
|
||||
if (backing_file_is_open(curlun)) {
|
||||
close_backing_file(curlun);
|
||||
if (fsg_lun_is_open(curlun)) {
|
||||
fsg_lun_close(curlun);
|
||||
curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT;
|
||||
}
|
||||
|
||||
/* Load new medium */
|
||||
if (count > 0 && buf[0]) {
|
||||
rc = open_backing_file(curlun, buf);
|
||||
rc = fsg_lun_open(curlun, buf);
|
||||
if (rc == 0)
|
||||
curlun->unit_attention_data =
|
||||
SS_NOT_READY_TO_READY_TRANSITION;
|
||||
@ -3251,7 +3255,7 @@ static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget)
|
||||
{
|
||||
struct fsg_dev *fsg = get_gadget_data(gadget);
|
||||
int i;
|
||||
struct lun *curlun;
|
||||
struct fsg_lun *curlun;
|
||||
struct usb_request *req = fsg->ep0req;
|
||||
|
||||
DBG(fsg, "unbind\n");
|
||||
@ -3263,7 +3267,7 @@ static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget)
|
||||
if (curlun->registered) {
|
||||
device_remove_file(&curlun->dev, &dev_attr_ro);
|
||||
device_remove_file(&curlun->dev, &dev_attr_file);
|
||||
close_backing_file(curlun);
|
||||
fsg_lun_close(curlun);
|
||||
device_unregister(&curlun->dev);
|
||||
curlun->registered = 0;
|
||||
}
|
||||
@ -3279,7 +3283,7 @@ static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget)
|
||||
}
|
||||
|
||||
/* Free the data buffers */
|
||||
for (i = 0; i < NUM_BUFFERS; ++i)
|
||||
for (i = 0; i < FSG_NUM_BUFFERS; ++i)
|
||||
kfree(fsg->buffhds[i].buf);
|
||||
|
||||
/* Free the request and buffer for endpoint 0 */
|
||||
@ -3386,7 +3390,7 @@ static int __init fsg_bind(struct usb_gadget *gadget)
|
||||
struct fsg_dev *fsg = the_fsg;
|
||||
int rc;
|
||||
int i;
|
||||
struct lun *curlun;
|
||||
struct fsg_lun *curlun;
|
||||
struct usb_ep *ep;
|
||||
struct usb_request *req;
|
||||
char *pathbuf, *p;
|
||||
@ -3412,7 +3416,7 @@ static int __init fsg_bind(struct usb_gadget *gadget)
|
||||
i = mod_data.nluns;
|
||||
if (i == 0)
|
||||
i = max(mod_data.num_filenames, 1u);
|
||||
if (i > MAX_LUNS) {
|
||||
if (i > FSG_MAX_LUNS) {
|
||||
ERROR(fsg, "invalid number of LUNs: %d\n", i);
|
||||
rc = -EINVAL;
|
||||
goto out;
|
||||
@ -3420,7 +3424,7 @@ static int __init fsg_bind(struct usb_gadget *gadget)
|
||||
|
||||
/* Create the LUNs, open their backing files, and register the
|
||||
* LUN devices in sysfs. */
|
||||
fsg->luns = kzalloc(i * sizeof(struct lun), GFP_KERNEL);
|
||||
fsg->luns = kzalloc(i * sizeof(struct fsg_lun), GFP_KERNEL);
|
||||
if (!fsg->luns) {
|
||||
rc = -ENOMEM;
|
||||
goto out;
|
||||
@ -3454,7 +3458,7 @@ static int __init fsg_bind(struct usb_gadget *gadget)
|
||||
kref_get(&fsg->ref);
|
||||
|
||||
if (mod_data.file[i] && *mod_data.file[i]) {
|
||||
if ((rc = open_backing_file(curlun,
|
||||
if ((rc = fsg_lun_open(curlun,
|
||||
mod_data.file[i])) != 0)
|
||||
goto out;
|
||||
} else if (!mod_data.removable) {
|
||||
@ -3466,20 +3470,20 @@ static int __init fsg_bind(struct usb_gadget *gadget)
|
||||
|
||||
/* Find all the endpoints we will use */
|
||||
usb_ep_autoconfig_reset(gadget);
|
||||
ep = usb_ep_autoconfig(gadget, &fs_bulk_in_desc);
|
||||
ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_in_desc);
|
||||
if (!ep)
|
||||
goto autoconf_fail;
|
||||
ep->driver_data = fsg; // claim the endpoint
|
||||
fsg->bulk_in = ep;
|
||||
|
||||
ep = usb_ep_autoconfig(gadget, &fs_bulk_out_desc);
|
||||
ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_out_desc);
|
||||
if (!ep)
|
||||
goto autoconf_fail;
|
||||
ep->driver_data = fsg; // claim the endpoint
|
||||
fsg->bulk_out = ep;
|
||||
|
||||
if (transport_is_cbi()) {
|
||||
ep = usb_ep_autoconfig(gadget, &fs_intr_in_desc);
|
||||
ep = usb_ep_autoconfig(gadget, &fsg_fs_intr_in_desc);
|
||||
if (!ep)
|
||||
goto autoconf_fail;
|
||||
ep->driver_data = fsg; // claim the endpoint
|
||||
@ -3493,28 +3497,28 @@ static int __init fsg_bind(struct usb_gadget *gadget)
|
||||
device_desc.bcdDevice = cpu_to_le16(mod_data.release);
|
||||
|
||||
i = (transport_is_cbi() ? 3 : 2); // Number of endpoints
|
||||
intf_desc.bNumEndpoints = i;
|
||||
intf_desc.bInterfaceSubClass = mod_data.protocol_type;
|
||||
intf_desc.bInterfaceProtocol = mod_data.transport_type;
|
||||
fs_function[i + FS_FUNCTION_PRE_EP_ENTRIES] = NULL;
|
||||
fsg_intf_desc.bNumEndpoints = i;
|
||||
fsg_intf_desc.bInterfaceSubClass = mod_data.protocol_type;
|
||||
fsg_intf_desc.bInterfaceProtocol = mod_data.transport_type;
|
||||
fsg_fs_function[i + FSG_FS_FUNCTION_PRE_EP_ENTRIES] = NULL;
|
||||
|
||||
if (gadget_is_dualspeed(gadget)) {
|
||||
hs_function[i + HS_FUNCTION_PRE_EP_ENTRIES] = NULL;
|
||||
fsg_hs_function[i + FSG_HS_FUNCTION_PRE_EP_ENTRIES] = NULL;
|
||||
|
||||
/* Assume ep0 uses the same maxpacket value for both speeds */
|
||||
dev_qualifier.bMaxPacketSize0 = fsg->ep0->maxpacket;
|
||||
|
||||
/* Assume endpoint addresses are the same for both speeds */
|
||||
hs_bulk_in_desc.bEndpointAddress =
|
||||
fs_bulk_in_desc.bEndpointAddress;
|
||||
hs_bulk_out_desc.bEndpointAddress =
|
||||
fs_bulk_out_desc.bEndpointAddress;
|
||||
hs_intr_in_desc.bEndpointAddress =
|
||||
fs_intr_in_desc.bEndpointAddress;
|
||||
fsg_hs_bulk_in_desc.bEndpointAddress =
|
||||
fsg_fs_bulk_in_desc.bEndpointAddress;
|
||||
fsg_hs_bulk_out_desc.bEndpointAddress =
|
||||
fsg_fs_bulk_out_desc.bEndpointAddress;
|
||||
fsg_hs_intr_in_desc.bEndpointAddress =
|
||||
fsg_fs_intr_in_desc.bEndpointAddress;
|
||||
}
|
||||
|
||||
if (gadget_is_otg(gadget))
|
||||
otg_desc.bmAttributes |= USB_OTG_HNP;
|
||||
fsg_otg_desc.bmAttributes |= USB_OTG_HNP;
|
||||
|
||||
rc = -ENOMEM;
|
||||
|
||||
@ -3528,7 +3532,7 @@ static int __init fsg_bind(struct usb_gadget *gadget)
|
||||
req->complete = ep0_complete;
|
||||
|
||||
/* Allocate the data buffers */
|
||||
for (i = 0; i < NUM_BUFFERS; ++i) {
|
||||
for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
|
||||
struct fsg_buffhd *bh = &fsg->buffhds[i];
|
||||
|
||||
/* Allocate for the bulk-in endpoint. We assume that
|
||||
@ -3539,23 +3543,24 @@ static int __init fsg_bind(struct usb_gadget *gadget)
|
||||
goto out;
|
||||
bh->next = bh + 1;
|
||||
}
|
||||
fsg->buffhds[NUM_BUFFERS - 1].next = &fsg->buffhds[0];
|
||||
fsg->buffhds[FSG_NUM_BUFFERS - 1].next = &fsg->buffhds[0];
|
||||
|
||||
/* This should reflect the actual gadget power source */
|
||||
usb_gadget_set_selfpowered(gadget);
|
||||
|
||||
snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
|
||||
snprintf(fsg_string_manufacturer, sizeof fsg_string_manufacturer,
|
||||
"%s %s with %s",
|
||||
init_utsname()->sysname, init_utsname()->release,
|
||||
gadget->name);
|
||||
|
||||
/* On a real device, serial[] would be loaded from permanent
|
||||
* storage. We just encode it from the driver version string. */
|
||||
for (i = 0; i < sizeof(serial) - 2; i += 2) {
|
||||
for (i = 0; i < sizeof fsg_string_serial - 2; i += 2) {
|
||||
unsigned char c = DRIVER_VERSION[i / 2];
|
||||
|
||||
if (!c)
|
||||
break;
|
||||
sprintf(&serial[i], "%02X", c);
|
||||
sprintf(&fsg_string_serial[i], "%02X", c);
|
||||
}
|
||||
|
||||
fsg->thread_task = kthread_create(fsg_main_thread, fsg,
|
||||
@ -3571,7 +3576,7 @@ static int __init fsg_bind(struct usb_gadget *gadget)
|
||||
pathbuf = kmalloc(PATH_MAX, GFP_KERNEL);
|
||||
for (i = 0; i < fsg->nluns; ++i) {
|
||||
curlun = &fsg->luns[i];
|
||||
if (backing_file_is_open(curlun)) {
|
||||
if (fsg_lun_is_open(curlun)) {
|
||||
p = NULL;
|
||||
if (pathbuf) {
|
||||
p = d_path(&curlun->filp->f_path,
|
||||
@ -3641,7 +3646,7 @@ static struct usb_gadget_driver fsg_driver = {
|
||||
#else
|
||||
.speed = USB_SPEED_FULL,
|
||||
#endif
|
||||
.function = (char *) longname,
|
||||
.function = (char *) fsg_string_product,
|
||||
.bind = fsg_bind,
|
||||
.unbind = fsg_unbind,
|
||||
.disconnect = fsg_disconnect,
|
||||
@ -3650,7 +3655,7 @@ static struct usb_gadget_driver fsg_driver = {
|
||||
.resume = fsg_resume,
|
||||
|
||||
.driver = {
|
||||
.name = (char *) shortname,
|
||||
.name = DRIVER_NAME,
|
||||
.owner = THIS_MODULE,
|
||||
// .release = ...
|
||||
// .suspend = ...
|
||||
|
||||
@ -4,9 +4,38 @@
|
||||
* Copyright (C) 2003-2008 Alan Stern
|
||||
* Copyeight (C) 2009 Samsung Electronics
|
||||
* Author: Michal Nazarewicz (m.nazarewicz@samsung.com)
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
* This file requires the following identifiers used in USB strings to
|
||||
* be defined (each of type pointer to char):
|
||||
* - fsg_string_manufacturer -- name of the manufacturer
|
||||
* - fsg_string_product -- name of the product
|
||||
* - fsg_string_serial -- product's serial
|
||||
* - fsg_string_config -- name of the configuration
|
||||
* - fsg_string_interface -- name of the interface
|
||||
* The first four are only needed when FSG_DESCRIPTORS_DEVICE_STRINGS
|
||||
* macro is defined prior to including this file.
|
||||
*/
|
||||
|
||||
|
||||
#include <asm/unaligned.h>
|
||||
|
||||
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
@ -93,7 +122,7 @@
|
||||
/* Bulk-only data structures */
|
||||
|
||||
/* Command Block Wrapper */
|
||||
struct bulk_cb_wrap {
|
||||
struct fsg_bulk_cb_wrap {
|
||||
__le32 Signature; // Contains 'USBC'
|
||||
u32 Tag; // Unique per command id
|
||||
__le32 DataTransferLength; // Size of the data
|
||||
@ -191,7 +220,7 @@ struct interrupt_data {
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
|
||||
struct lun {
|
||||
struct fsg_lun {
|
||||
struct file *filp;
|
||||
loff_t file_length;
|
||||
loff_t num_sectors;
|
||||
@ -208,11 +237,11 @@ struct lun {
|
||||
struct device dev;
|
||||
};
|
||||
|
||||
#define backing_file_is_open(curlun) ((curlun)->filp != NULL)
|
||||
#define fsg_lun_is_open(curlun) ((curlun)->filp != NULL)
|
||||
|
||||
static struct lun *dev_to_lun(struct device *dev)
|
||||
static struct fsg_lun *fsg_lun_from_dev(struct device *dev)
|
||||
{
|
||||
return container_of(dev, struct lun, dev);
|
||||
return container_of(dev, struct fsg_lun, dev);
|
||||
}
|
||||
|
||||
|
||||
@ -221,7 +250,7 @@ static struct lun *dev_to_lun(struct device *dev)
|
||||
#define DELAYED_STATUS (EP0_BUFSIZE + 999) // An impossibly large value
|
||||
|
||||
/* Number of buffers we will use. 2 is enough for double-buffering */
|
||||
#define NUM_BUFFERS 2
|
||||
#define FSG_NUM_BUFFERS 2
|
||||
|
||||
enum fsg_buffer_state {
|
||||
BUF_STATE_EMPTY = 0,
|
||||
@ -280,16 +309,18 @@ static inline u32 get_unaligned_be24(u8 *buf)
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
|
||||
#define STRING_MANUFACTURER 1
|
||||
#define STRING_PRODUCT 2
|
||||
#define STRING_SERIAL 3
|
||||
#define STRING_CONFIG 4
|
||||
#define STRING_INTERFACE 5
|
||||
enum {
|
||||
FSG_STRING_MANUFACTURER = 1,
|
||||
FSG_STRING_PRODUCT,
|
||||
FSG_STRING_SERIAL,
|
||||
FSG_STRING_CONFIG,
|
||||
FSG_STRING_INTERFACE
|
||||
};
|
||||
|
||||
|
||||
static struct usb_otg_descriptor
|
||||
otg_desc = {
|
||||
.bLength = sizeof(otg_desc),
|
||||
fsg_otg_desc = {
|
||||
.bLength = sizeof fsg_otg_desc,
|
||||
.bDescriptorType = USB_DT_OTG,
|
||||
|
||||
.bmAttributes = USB_OTG_SRP,
|
||||
@ -298,22 +329,22 @@ otg_desc = {
|
||||
/* There is only one interface. */
|
||||
|
||||
static struct usb_interface_descriptor
|
||||
intf_desc = {
|
||||
.bLength = sizeof intf_desc,
|
||||
fsg_intf_desc = {
|
||||
.bLength = sizeof fsg_intf_desc,
|
||||
.bDescriptorType = USB_DT_INTERFACE,
|
||||
|
||||
.bNumEndpoints = 2, // Adjusted during fsg_bind()
|
||||
.bInterfaceClass = USB_CLASS_MASS_STORAGE,
|
||||
.bInterfaceSubClass = USB_SC_SCSI, // Adjusted during fsg_bind()
|
||||
.bInterfaceProtocol = USB_PR_BULK, // Adjusted during fsg_bind()
|
||||
.iInterface = STRING_INTERFACE,
|
||||
.iInterface = FSG_STRING_INTERFACE,
|
||||
};
|
||||
|
||||
/* Three full-speed endpoint descriptors: bulk-in, bulk-out,
|
||||
* and interrupt-in. */
|
||||
|
||||
static struct usb_endpoint_descriptor
|
||||
fs_bulk_in_desc = {
|
||||
fsg_fs_bulk_in_desc = {
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
|
||||
@ -323,7 +354,7 @@ fs_bulk_in_desc = {
|
||||
};
|
||||
|
||||
static struct usb_endpoint_descriptor
|
||||
fs_bulk_out_desc = {
|
||||
fsg_fs_bulk_out_desc = {
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
|
||||
@ -333,7 +364,7 @@ fs_bulk_out_desc = {
|
||||
};
|
||||
|
||||
static struct usb_endpoint_descriptor
|
||||
fs_intr_in_desc = {
|
||||
fsg_fs_intr_in_desc = {
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
|
||||
@ -343,15 +374,15 @@ fs_intr_in_desc = {
|
||||
.bInterval = 32, // frames -> 32 ms
|
||||
};
|
||||
|
||||
static const struct usb_descriptor_header *fs_function[] = {
|
||||
(struct usb_descriptor_header *) &otg_desc,
|
||||
(struct usb_descriptor_header *) &intf_desc,
|
||||
(struct usb_descriptor_header *) &fs_bulk_in_desc,
|
||||
(struct usb_descriptor_header *) &fs_bulk_out_desc,
|
||||
(struct usb_descriptor_header *) &fs_intr_in_desc,
|
||||
static const struct usb_descriptor_header *fsg_fs_function[] = {
|
||||
(struct usb_descriptor_header *) &fsg_otg_desc,
|
||||
(struct usb_descriptor_header *) &fsg_intf_desc,
|
||||
(struct usb_descriptor_header *) &fsg_fs_bulk_in_desc,
|
||||
(struct usb_descriptor_header *) &fsg_fs_bulk_out_desc,
|
||||
(struct usb_descriptor_header *) &fsg_fs_intr_in_desc,
|
||||
NULL,
|
||||
};
|
||||
#define FS_FUNCTION_PRE_EP_ENTRIES 2
|
||||
#define FSG_FS_FUNCTION_PRE_EP_ENTRIES 2
|
||||
|
||||
|
||||
/*
|
||||
@ -363,7 +394,7 @@ static const struct usb_descriptor_header *fs_function[] = {
|
||||
* for the config descriptor.
|
||||
*/
|
||||
static struct usb_endpoint_descriptor
|
||||
hs_bulk_in_desc = {
|
||||
fsg_hs_bulk_in_desc = {
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
|
||||
@ -373,7 +404,7 @@ hs_bulk_in_desc = {
|
||||
};
|
||||
|
||||
static struct usb_endpoint_descriptor
|
||||
hs_bulk_out_desc = {
|
||||
fsg_hs_bulk_out_desc = {
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
|
||||
@ -384,7 +415,7 @@ hs_bulk_out_desc = {
|
||||
};
|
||||
|
||||
static struct usb_endpoint_descriptor
|
||||
hs_intr_in_desc = {
|
||||
fsg_hs_intr_in_desc = {
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
|
||||
@ -394,19 +425,19 @@ hs_intr_in_desc = {
|
||||
.bInterval = 9, // 2**(9-1) = 256 uframes -> 32 ms
|
||||
};
|
||||
|
||||
static const struct usb_descriptor_header *hs_function[] = {
|
||||
(struct usb_descriptor_header *) &otg_desc,
|
||||
(struct usb_descriptor_header *) &intf_desc,
|
||||
(struct usb_descriptor_header *) &hs_bulk_in_desc,
|
||||
(struct usb_descriptor_header *) &hs_bulk_out_desc,
|
||||
(struct usb_descriptor_header *) &hs_intr_in_desc,
|
||||
static const struct usb_descriptor_header *fsg_hs_function[] = {
|
||||
(struct usb_descriptor_header *) &fsg_otg_desc,
|
||||
(struct usb_descriptor_header *) &fsg_intf_desc,
|
||||
(struct usb_descriptor_header *) &fsg_hs_bulk_in_desc,
|
||||
(struct usb_descriptor_header *) &fsg_hs_bulk_out_desc,
|
||||
(struct usb_descriptor_header *) &fsg_hs_intr_in_desc,
|
||||
NULL,
|
||||
};
|
||||
#define HS_FUNCTION_PRE_EP_ENTRIES 2
|
||||
#define FSG_HS_FUNCTION_PRE_EP_ENTRIES 2
|
||||
|
||||
/* Maxpacket and other transfer characteristics vary by speed. */
|
||||
static struct usb_endpoint_descriptor *
|
||||
ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs,
|
||||
fsg_ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs,
|
||||
struct usb_endpoint_descriptor *hs)
|
||||
{
|
||||
if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
|
||||
@ -415,24 +446,19 @@ ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs,
|
||||
}
|
||||
|
||||
|
||||
/* The CBI specification limits the serial string to 12 uppercase hexadecimal
|
||||
* characters. */
|
||||
static char manufacturer[64];
|
||||
static char serial[13];
|
||||
|
||||
/* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */
|
||||
static struct usb_string strings[] = {
|
||||
{STRING_MANUFACTURER, manufacturer},
|
||||
{STRING_PRODUCT, longname},
|
||||
{STRING_SERIAL, serial},
|
||||
{STRING_CONFIG, "Self-powered"},
|
||||
{STRING_INTERFACE, "Mass Storage"},
|
||||
static struct usb_string fsg_strings[] = {
|
||||
{FSG_STRING_MANUFACTURER, fsg_string_manufacturer},
|
||||
{FSG_STRING_PRODUCT, fsg_string_product},
|
||||
{FSG_STRING_SERIAL, fsg_string_serial},
|
||||
{FSG_STRING_CONFIG, fsg_string_config},
|
||||
{FSG_STRING_INTERFACE, fsg_string_interface},
|
||||
{}
|
||||
};
|
||||
|
||||
static struct usb_gadget_strings stringtab = {
|
||||
static struct usb_gadget_strings fsg_stringtab = {
|
||||
.language = 0x0409, // en-us
|
||||
.strings = strings,
|
||||
.strings = fsg_strings,
|
||||
};
|
||||
|
||||
|
||||
@ -441,7 +467,7 @@ static struct usb_gadget_strings stringtab = {
|
||||
/* If the next two routines are called while the gadget is registered,
|
||||
* the caller must own fsg->filesem for writing. */
|
||||
|
||||
static int open_backing_file(struct lun *curlun, const char *filename)
|
||||
static int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
|
||||
{
|
||||
int ro;
|
||||
struct file *filp = NULL;
|
||||
@ -525,7 +551,7 @@ out:
|
||||
}
|
||||
|
||||
|
||||
static void close_backing_file(struct lun *curlun)
|
||||
static void fsg_lun_close(struct fsg_lun *curlun)
|
||||
{
|
||||
if (curlun->filp) {
|
||||
LDBG(curlun, "close backing file\n");
|
||||
@ -539,7 +565,7 @@ static void close_backing_file(struct lun *curlun)
|
||||
|
||||
/* Sync the file data, don't bother with the metadata.
|
||||
* This code was copied from fs/buffer.c:sys_fdatasync(). */
|
||||
static int fsync_sub(struct lun *curlun)
|
||||
static int fsg_lun_fsync_sub(struct fsg_lun *curlun)
|
||||
{
|
||||
struct file *filp = curlun->filp;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user