diff options
Diffstat (limited to 'common/usb_storage.c')
| -rw-r--r-- | common/usb_storage.c | 236 |
1 files changed, 125 insertions, 111 deletions
diff --git a/common/usb_storage.c b/common/usb_storage.c index a4ca7a5..cc9b3e3 100644 --- a/common/usb_storage.c +++ b/common/usb_storage.c @@ -9,6 +9,8 @@ * * Adapted for U-Boot: * (C) Copyright 2001 Denis Peter, MPL AG Switzerland + * Driver model conversion: + * (C) Copyright 2015 Google, Inc * * For BBB support (C) Copyright 2003 * Gary Jennejohn, DENX Software Engineering <garyj@denx.de> @@ -33,9 +35,13 @@ #include <common.h> #include <command.h> +#include <dm.h> +#include <errno.h> #include <inttypes.h> +#include <mapmem.h> #include <asm/byteorder.h> #include <asm/processor.h> +#include <dm/device-internal.h> #include <part.h> #include <usb.h> @@ -56,49 +62,8 @@ static const unsigned char us_direction[256/8] = { #define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1) static ccb usb_ccb __attribute__((aligned(ARCH_DMA_MINALIGN))); - -/* - * CBI style - */ - -#define US_CBI_ADSC 0 - -/* - * BULK only - */ -#define US_BBB_RESET 0xff -#define US_BBB_GET_MAX_LUN 0xfe - -/* Command Block Wrapper */ -typedef struct { - __u32 dCBWSignature; -# define CBWSIGNATURE 0x43425355 - __u32 dCBWTag; - __u32 dCBWDataTransferLength; - __u8 bCBWFlags; -# define CBWFLAGS_OUT 0x00 -# define CBWFLAGS_IN 0x80 - __u8 bCBWLUN; - __u8 bCDBLength; -# define CBWCDBLENGTH 16 - __u8 CBWCDB[CBWCDBLENGTH]; -} umass_bbb_cbw_t; -#define UMASS_BBB_CBW_SIZE 31 static __u32 CBWTag; -/* Command Status Wrapper */ -typedef struct { - __u32 dCSWSignature; -# define CSWSIGNATURE 0x53425355 - __u32 dCSWTag; - __u32 dCSWDataResidue; - __u8 bCSWStatus; -# define CSWSTATUS_GOOD 0x0 -# define CSWSTATUS_FAILED 0x1 -# define CSWSTATUS_PHASE 0x2 -} umass_bbb_csw_t; -#define UMASS_BBB_CSW_SIZE 13 - #define USB_MAX_STOR_DEV 5 static int usb_max_devs; /* number of highest available usb device */ @@ -145,7 +110,6 @@ struct us_data { static struct us_data usb_stor[USB_MAX_STOR_DEV]; - #define USB_STOR_TRANSPORT_GOOD 0 #define USB_STOR_TRANSPORT_FAILED -1 #define USB_STOR_TRANSPORT_ERROR -2 @@ -158,7 +122,6 @@ unsigned long usb_stor_read(int device, lbaint_t blknr, lbaint_t blkcnt, void *buffer); unsigned long usb_stor_write(int device, lbaint_t blknr, lbaint_t blkcnt, const void *buffer); -struct usb_device * usb_get_dev_index(int index); void uhci_show_temp_int_td(void); #ifdef CONFIG_PARTITIONS @@ -208,30 +171,61 @@ static unsigned int usb_get_max_lun(struct us_data *us) return (len > 0) ? *result : 0; } -static int usb_storage_register(struct usb_device *dev, unsigned char iface) +static int usb_stor_probe_device(struct usb_device *dev) { - int lun, max_lun, start = usb_max_devs; - int nb_dev = 0; - - if (!usb_storage_probe(dev, iface, &usb_stor[usb_max_devs])) - return nb_dev; - - /* - * OK, it's a storage device. Iterate over its LUNs - * and populate `usb_dev_desc'. - */ - max_lun = usb_get_max_lun(&usb_stor[usb_max_devs]); - for (lun = 0; lun <= max_lun && usb_max_devs < USB_MAX_STOR_DEV; lun++) { - usb_dev_desc[usb_max_devs].lun = lun; - if (usb_stor_get_info(dev, &usb_stor[start], - &usb_dev_desc[usb_max_devs]) == 1) { - nb_dev++; + if (dev == NULL) + return -ENOENT; /* no more devices available */ + + debug("\n\nProbing for storage\n"); + if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) { + /* OK, it's a storage device. Iterate over its LUNs + * and populate `usb_dev_desc'. + */ + int lun, max_lun, start = usb_max_devs; + + max_lun = usb_get_max_lun(&usb_stor[usb_max_devs]); + for (lun = 0; + lun <= max_lun && usb_max_devs < USB_MAX_STOR_DEV; + lun++) { + struct block_dev_desc *blkdev; + + blkdev = &usb_dev_desc[usb_max_devs]; + memset(blkdev, '\0', sizeof(block_dev_desc_t)); + blkdev->if_type = IF_TYPE_USB; + blkdev->dev = usb_max_devs; + blkdev->part_type = PART_TYPE_UNKNOWN; + blkdev->target = 0xff; + blkdev->type = DEV_TYPE_UNKNOWN; + blkdev->block_read = usb_stor_read; + blkdev->block_write = usb_stor_write; + blkdev->lun = lun; + blkdev->priv = dev; + + if (usb_stor_get_info(dev, &usb_stor[start], + &usb_dev_desc[usb_max_devs]) == + 1) { + usb_max_devs++; + debug("%s: Found device %p\n", __func__, dev); + } } } - return nb_dev; + /* if storage device */ + if (usb_max_devs == USB_MAX_STOR_DEV) { + printf("max USB Storage Device reached: %d stopping\n", + usb_max_devs); + return -ENOSPC; + } + + return 0; +} + +void usb_stor_reset(void) +{ + usb_max_devs = 0; } +#ifndef CONFIG_DM_USB /******************************************************************************* * scan the usb and reports device info * to the user if mode = 1 @@ -239,42 +233,21 @@ static int usb_storage_register(struct usb_device *dev, unsigned char iface) */ int usb_stor_scan(int mode) { - unsigned char i, iface; - struct usb_device *dev; + unsigned char i; if (mode == 1) printf(" scanning usb for storage devices... "); usb_disable_asynch(1); /* asynch transfer not allowed */ - for (i = 0; i < USB_MAX_STOR_DEV; i++) { - memset(&usb_dev_desc[i], 0, sizeof(block_dev_desc_t)); - usb_dev_desc[i].if_type = IF_TYPE_USB; - usb_dev_desc[i].dev = i; - usb_dev_desc[i].part_type = PART_TYPE_UNKNOWN; - usb_dev_desc[i].target = 0xff; - usb_dev_desc[i].type = DEV_TYPE_UNKNOWN; - usb_dev_desc[i].block_read = usb_stor_read; - usb_dev_desc[i].block_write = usb_stor_write; - } - - usb_max_devs = 0; + usb_stor_reset(); for (i = 0; i < USB_MAX_DEVICE; i++) { + struct usb_device *dev; + dev = usb_get_dev_index(i); /* get device */ debug("i=%d\n", i); - if (dev == NULL) - break; /* no more devices available */ - - for (iface = 0; iface < dev->config.no_of_if; iface++) { - usb_max_devs += usb_storage_register(dev, iface); - } - - /* if storage device */ - if (usb_max_devs == USB_MAX_STOR_DEV) { - printf("max USB Storage Device reached: %d stopping\n", - usb_max_devs); + if (usb_stor_probe_device(dev)) break; - } } /* for */ usb_disable_asynch(0); /* asynch transfer allowed */ @@ -283,6 +256,7 @@ int usb_stor_scan(int mode) return 0; return -1; } +#endif static int usb_stor_irq(struct usb_device *dev) { @@ -347,8 +321,9 @@ static int us_one_transfer(struct us_data *us, int pipe, char *buf, int length) /* set up the transfer loop */ do { /* transfer the data */ - debug("Bulk xfer %p(%d) try #%d\n", - buf, this_xfer, 11 - maxtry); + debug("Bulk xfer 0x%lx(%d) try #%d\n", + (ulong)map_to_sysmem(buf), this_xfer, + 11 - maxtry); result = usb_bulk_msg(us->pusb_dev, pipe, buf, this_xfer, &partial, USB_CNTL_TIMEOUT * 5); @@ -494,7 +469,7 @@ static int usb_stor_BBB_comdat(ccb *srb, struct us_data *us) int actlen; int dir_in; unsigned int pipe; - ALLOC_CACHE_ALIGN_BUFFER(umass_bbb_cbw_t, cbw, 1); + ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_cbw, cbw, 1); dir_in = US_DIRECTION(srb->cmd[0]); @@ -670,7 +645,7 @@ static int usb_stor_BBB_transport(ccb *srb, struct us_data *us) int dir_in; int actlen, data_actlen; unsigned int pipe, pipein, pipeout; - ALLOC_CACHE_ALIGN_BUFFER(umass_bbb_csw_t, csw, 1); + ALLOC_CACHE_ALIGN_BUFFER(struct umass_bbb_csw, csw, 1); #ifdef BBB_XPORT_TRACE unsigned char *ptr; int index; @@ -1059,7 +1034,7 @@ unsigned long usb_stor_read(int device, lbaint_t blknr, unsigned short smallblks; struct usb_device *dev; struct us_data *ss; - int retry, i; + int retry; ccb *srb = &usb_ccb; if (blkcnt == 0) @@ -1067,14 +1042,11 @@ unsigned long usb_stor_read(int device, lbaint_t blknr, device &= 0xff; /* Setup device */ - debug("\nusb_read: dev %d \n", device); - dev = NULL; - for (i = 0; i < USB_MAX_DEVICE; i++) { - dev = usb_get_dev_index(i); - if (dev == NULL) - return 0; - if (dev->devnum == usb_dev_desc[device].target) - break; + debug("\nusb_read: dev %d\n", device); + dev = usb_dev_desc[device].priv; + if (!dev) { + debug("%s: No device\n", __func__); + return 0; } ss = (struct us_data *)dev->privptr; @@ -1132,7 +1104,7 @@ unsigned long usb_stor_write(int device, lbaint_t blknr, unsigned short smallblks; struct usb_device *dev; struct us_data *ss; - int retry, i; + int retry; ccb *srb = &usb_ccb; if (blkcnt == 0) @@ -1140,15 +1112,10 @@ unsigned long usb_stor_write(int device, lbaint_t blknr, device &= 0xff; /* Setup device */ - debug("\nusb_write: dev %d \n", device); - dev = NULL; - for (i = 0; i < USB_MAX_DEVICE; i++) { - dev = usb_get_dev_index(i); - if (dev == NULL) - return 0; - if (dev->devnum == usb_dev_desc[device].target) - break; - } + debug("\nusb_write: dev %d\n", device); + dev = usb_dev_desc[device].priv; + if (!dev) + return 0; ss = (struct us_data *)dev->privptr; usb_disable_asynch(1); /* asynch transfer not allowed */ @@ -1232,6 +1199,7 @@ int usb_storage_probe(struct usb_device *dev, unsigned int ifnum, iface->desc.bInterfaceClass != USB_CLASS_MASS_STORAGE || iface->desc.bInterfaceSubClass < US_SC_MIN || iface->desc.bInterfaceSubClass > US_SC_MAX) { + debug("Not mass storage\n"); /* if it's not a mass storage, we go no further */ return 0; } @@ -1358,8 +1326,10 @@ int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, pccb->lun = dev_desc->lun; debug(" address %d\n", dev_desc->target); - if (usb_inquiry(pccb, ss)) + if (usb_inquiry(pccb, ss)) { + debug("%s: usb_inquiry() failed\n", __func__); return -1; + } perq = usb_stor_buf[0]; modi = usb_stor_buf[1]; @@ -1369,6 +1339,7 @@ int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, * they would not respond to test_unit_ready . */ if (((perq & 0x1f) == 0x1f) || ((perq & 0x1f) == 0x0d)) { + debug("%s: unknown/unsupported device\n", __func__); return 0; } if ((modi&0x80) == 0x80) { @@ -1431,3 +1402,46 @@ int usb_stor_get_info(struct usb_device *dev, struct us_data *ss, debug("partype: %d\n", dev_desc->part_type); return 1; } + +#ifdef CONFIG_DM_USB + +static int usb_mass_storage_probe(struct udevice *dev) +{ + struct usb_device *udev = dev_get_parentdata(dev); + int ret; + + usb_disable_asynch(1); /* asynch transfer not allowed */ + ret = usb_stor_probe_device(udev); + usb_disable_asynch(0); /* asynch transfer allowed */ + + return ret; +} + +static const struct udevice_id usb_mass_storage_ids[] = { + { .compatible = "usb-mass-storage" }, + { } +}; + +U_BOOT_DRIVER(usb_mass_storage) = { + .name = "usb_mass_storage", + .id = UCLASS_MASS_STORAGE, + .of_match = usb_mass_storage_ids, + .probe = usb_mass_storage_probe, +}; + +UCLASS_DRIVER(usb_mass_storage) = { + .id = UCLASS_MASS_STORAGE, + .name = "usb_mass_storage", +}; + +static const struct usb_device_id mass_storage_id_table[] = { + { + .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS, + .bInterfaceClass = USB_CLASS_MASS_STORAGE + }, + { } /* Terminating entry */ +}; + +USB_DEVICE(usb_mass_storage, mass_storage_id_table); + +#endif |