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make UDisk work well 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2448 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
sc943313837@gmail.com 2012-11-25 16:00:28 +00:00
parent 60c27fc4b5
commit 9789907ca1
1 changed files with 106 additions and 81 deletions
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187
components/drivers/usb/usbdevice/class/mstorage.c
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@ -10,6 +10,7 @@
* Change Logs:
* Date Author Notes
* 2012-10-01 Yi Qiu first version
* 2012-11-25 Heyuanjie87 reduce the memory consumption
*/
#include <rtthread.h>
@ -22,14 +23,17 @@
#define STATUS_CBW 0x00
#define STATUS_CSW 0x01
#define STATUS_RECEIVE 0x02
#define STATUS_SEND 0x03
static uclass_t mstorage;
static uep_t ep_in, ep_out;
static uep_t ep_in, ep_out;
static rt_uint8_t *buffer;
static rt_uint8_t *write_ptr;
static int status = STATUS_CBW;
static struct ustorage_csw csw;
static rt_device_t disk;
static rt_uint32_t _block;
static rt_uint32_t _count, _size;
static struct rt_device_blk_geometry geometry;
static struct udevice_descriptor dev_desc =
@ -67,14 +71,14 @@ static struct umass_descriptor mass_desc =
USB_DYNAMIC | USB_DIR_OUT, //bEndpointAddress;
USB_EP_ATTR_BULK, //bmAttributes;
0x40, //wMaxPacketSize;
0x00, //bInterval;
0x00, //bInterval;
USB_DESC_LENGTH_ENDPOINT, //bLength;
USB_DESC_TYPE_ENDPOINT, //type;
USB_DYNAMIC | USB_DIR_IN, //bEndpointAddress;
USB_EP_ATTR_BULK, //bmAttributes;
0x40, //wMaxPacketSize;
0x00, //bInterval;
0x00, //bInterval;
};
/**
@ -96,7 +100,7 @@ static rt_err_t _inquiry_cmd(udevice_t device)
rt_memcpy(&data[8], "RTT", 3);
rt_memcpy(&data[16], "USB Disk", 8);
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&data, 36);
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&data, 36);
return RT_EOK;
}
@ -123,7 +127,7 @@ static rt_err_t _request_sense(udevice_t device)
data.AdditionalSenseCode = 0x20;
data.AdditionalSenseCodeQualifier =0;
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&data, sizeof(struct request_sense_data));
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&data, sizeof(struct request_sense_data));
return RT_EOK;
}
@ -146,7 +150,7 @@ static rt_err_t _mode_sense_6(udevice_t device)
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&data, 4);
return RT_EOK;
return RT_EOK;
}
/**
@ -160,21 +164,21 @@ static rt_err_t _read_capacities(udevice_t device)
{
rt_uint8_t data[12];
rt_uint32_t sector_count, sector_size;
RT_ASSERT(device != RT_NULL);
sector_count = geometry.sector_count;
sector_size = geometry.bytes_per_sector;
*(rt_uint32_t*)&data[0] = 0x08000000;
data[4] = sector_count >> 24;
data[5] = 0xff & (sector_count >> 16);
data[6] = 0xff & (sector_count >> 8);
data[7] = 0xff & (sector_count);
data[8] = 0x02;
data[8] = 0x02;
data[9] = 0xff & (sector_size >> 16);
data[10] = 0xff & (sector_size >> 8);
data[11] = 0xff & sector_size;
data[11] = 0xff & sector_size;
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&data, 12);
@ -192,82 +196,86 @@ static rt_err_t _read_capacity(udevice_t device)
{
rt_uint8_t data[8];
rt_uint32_t sector_count, sector_size;
RT_ASSERT(device != RT_NULL);
sector_count = geometry.sector_count;
sector_size = geometry.bytes_per_sector;
data[0] = sector_count >> 24;
data[1] = 0xff & (sector_count >> 16);
data[2] = 0xff & (sector_count >> 8);
data[3] = 0xff & (sector_count);
data[4] = 0x0;
data[4] = 0x0;
data[5] = 0xff & (sector_size >> 16);
data[6] = 0xff & (sector_size >> 8);
data[7] = 0xff & sector_size;
data[7] = 0xff & sector_size;
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&data, 8);
return RT_EOK;
return RT_EOK;
}
/**
* This function will handle read_10 request.
*
* @param device the usb device object.
* @param device the usb device object.
* @param cbw the command block wrapper.
*
* @return RT_EOK on successful.
*/
static rt_err_t _read_10(udevice_t device, ustorage_cbw_t cbw)
{
rt_uint32_t block;
rt_uint32_t count;
RT_ASSERT(device != RT_NULL);
RT_ASSERT(cbw != RT_NULL);
block = cbw->cb[2]<<24 | cbw->cb[3]<<16 | cbw->cb[4]<<8 |
cbw->cb[5]<<0 ;
count = cbw->cb[7]<<8 | cbw->cb[8]<<0 ;
_block = cbw->cb[2]<<24 | cbw->cb[3]<<16 | cbw->cb[4]<<8 |
cbw->cb[5]<<0 ;
RT_ASSERT(count < geometry.sector_count);
rt_device_read(disk, block, buffer, count);
dcd_ep_write(device->dcd, ep_in, buffer, count * geometry.bytes_per_sector);
_count = cbw->cb[7]<<8 | cbw->cb[8]<<0 ;
RT_ASSERT(_count < geometry.sector_count);
rt_device_read(disk, _block, buffer, 1);
dcd_ep_write(device->dcd, ep_in, buffer, geometry.bytes_per_sector);
_count --;
if (_count)
{
_block ++;
status = STATUS_SEND;
}
else
{
status = STATUS_CSW;
}
return RT_EOK;
}
static rt_uint32_t _block;
static rt_uint32_t _count, _size;
/**
* This function will handle write_10 request.
*
* @param device the usb device object.
* @param device the usb device object.
* @param cbw the command block wrapper.
*
* @return RT_EOK on successful.
*/
static rt_err_t _write_10(udevice_t device, ustorage_cbw_t cbw)
{
{
RT_ASSERT(device != RT_NULL);
RT_ASSERT(cbw != RT_NULL);
_block = cbw->cb[2]<<24 | cbw->cb[3]<<16 | cbw->cb[4]<<8 |
cbw->cb[5]<<0 ;
_block = cbw->cb[2]<<24 | cbw->cb[3]<<16 | cbw->cb[4]<<8 |
cbw->cb[5]<<0 ;
_count = cbw->cb[7]<<8 | cbw->cb[8]<<0;
csw.data_reside = cbw->xfer_len;
_size = _count * geometry.bytes_per_sector;
write_ptr = buffer;
RT_DEBUG_LOG(RT_DEBUG_USB, ("_write_10 count 0x%x 0x%x\n",
_count, geometry.sector_count));
dcd_ep_read(device->dcd, ep_out, buffer, MIN(_size, 4096));
RT_DEBUG_LOG(RT_DEBUG_USB, ("_write_10 count 0x%x 0x%x\n",
_count, geometry.sector_count));
dcd_ep_read(device->dcd, ep_out, buffer, MIN(_size, 4096));
return RT_EOK;
}
@ -275,13 +283,13 @@ static rt_err_t _write_10(udevice_t device, ustorage_cbw_t cbw)
/**
* This function will handle verify_10 request.
*
* @param device the usb device object.
* @param device the usb device object.
*
* @return RT_EOK on successful.
*/
static rt_err_t _verify_10(udevice_t device)
{
return RT_EOK;
return RT_EOK;
}
/**
@ -295,12 +303,27 @@ static rt_err_t _verify_10(udevice_t device)
static rt_err_t _ep_in_handler(udevice_t device, rt_size_t size)
{
RT_ASSERT(device != RT_NULL);
if(status == STATUS_CSW)
{
{
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&csw, SIZEOF_CSW);
status = STATUS_CBW;
dcd_ep_read(device->dcd, ep_out, ep_out->buffer, SIZEOF_CBW);
dcd_ep_read(device->dcd, ep_out, ep_out->buffer, SIZEOF_CBW);
}
if(status == STATUS_SEND)
{
rt_device_read(disk, _block, buffer, 1);
dcd_ep_write(device->dcd, ep_in, buffer, geometry.bytes_per_sector);
_count --;
if (_count)
{
_block ++;
status = STATUS_SEND;
}
else
{
status = STATUS_CSW;
}
}
return RT_EOK;
@ -316,7 +339,7 @@ static void cbw_dump(struct ustorage_cbw* cbw)
RT_DEBUG_LOG(RT_DEBUG_USB, ("dflags 0x%x\n", cbw->dflags));
RT_DEBUG_LOG(RT_DEBUG_USB, ("lun 0x%x\n", cbw->lun));
RT_DEBUG_LOG(RT_DEBUG_USB, ("cb_len 0x%x\n", cbw->cb_len));
RT_DEBUG_LOG(RT_DEBUG_USB, ("cb[0] 0x%x\n", cbw->cb[0]));
RT_DEBUG_LOG(RT_DEBUG_USB, ("cb[0] 0x%x\n", cbw->cb[0]));
}
/**
@ -328,15 +351,15 @@ static void cbw_dump(struct ustorage_cbw* cbw)
* @return RT_EOK.
*/
static rt_err_t _ep_out_handler(udevice_t device, rt_size_t size)
{
{
RT_ASSERT(device != RT_NULL);
if(status == STATUS_CBW)
{
struct ustorage_cbw* cbw;
/* dump cbw information */
cbw = (struct ustorage_cbw*)ep_out->buffer;
cbw = (struct ustorage_cbw*)ep_out->buffer;
if(cbw->signature == CBW_SIGNATURE)
{
@ -345,12 +368,12 @@ static rt_err_t _ep_out_handler(udevice_t device, rt_size_t size)
csw.data_reside = 0;
csw.status = 0;
}
switch(cbw->cb[0])
{
case SCSI_TEST_UNIT_READY:
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&csw, SIZEOF_CSW);
dcd_ep_read(device->dcd, ep_out, ep_out->buffer, SIZEOF_CBW);
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&csw, SIZEOF_CSW);
dcd_ep_read(device->dcd, ep_out, ep_out->buffer, SIZEOF_CBW);
break;
case SCSI_REQUEST_SENSE:
_request_sense(device);
@ -362,11 +385,11 @@ static rt_err_t _ep_out_handler(udevice_t device, rt_size_t size)
break;
case SCSI_MODE_SENSE_6:
_mode_sense_6(device);
status = STATUS_CSW;
status = STATUS_CSW;
break;
case SCSI_ALLOW_MEDIUM_REMOVAL:
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&csw, SIZEOF_CSW);
dcd_ep_read(device->dcd, ep_out, ep_out->buffer, SIZEOF_CBW);
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&csw, SIZEOF_CSW);
dcd_ep_read(device->dcd, ep_out, ep_out->buffer, SIZEOF_CBW);
break;
case SCSI_READ_CAPACITIES:
_read_capacities(device);
@ -374,25 +397,24 @@ static rt_err_t _ep_out_handler(udevice_t device, rt_size_t size)
break;
case SCSI_READ_CAPACITY:
_read_capacity(device);
status = STATUS_CSW;
status = STATUS_CSW;
break;
case SCSI_READ_10:
_read_10(device, cbw);
status = STATUS_CSW;
break;
case SCSI_WRITE_10:
_write_10(device, cbw);
status = STATUS_RECEIVE;
status = STATUS_RECEIVE;
break;
case SCSI_VERIFY_10:
_verify_10(device);
break;
}
}
}
else if(status == STATUS_RECEIVE)
{
RT_DEBUG_LOG(RT_DEBUG_USB, ("write size 0x%x block 0x%x oount 0x%x\n",
size, _block, _size));
RT_DEBUG_LOG(RT_DEBUG_USB, ("write size 0x%x block 0x%x oount 0x%x\n",
size, _block, _size));
_size -= size;
write_ptr += size;
@ -400,14 +422,14 @@ static rt_err_t _ep_out_handler(udevice_t device, rt_size_t size)
if(_size == 0)
{
rt_device_write(disk, _block, buffer, _count);
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&csw, SIZEOF_CSW);
dcd_ep_read(device->dcd, ep_out, ep_out->buffer, SIZEOF_CBW);
dcd_ep_write(device->dcd, ep_in, (rt_uint8_t*)&csw, SIZEOF_CSW);
dcd_ep_read(device->dcd, ep_out, ep_out->buffer, SIZEOF_CBW);
status = STATUS_CBW;
}
else
{
dcd_ep_read(device->dcd, ep_out, write_ptr, MIN(_size, 4096));
}
{
dcd_ep_read(device->dcd, ep_out, write_ptr, MIN(_size, 4096));
}
}
else
{
@ -429,7 +451,7 @@ static rt_err_t _ep_out_handler(udevice_t device, rt_size_t size)
static rt_err_t _interface_handler(udevice_t device, ureq_t setup)
{
rt_uint8_t lun = 0;
RT_ASSERT(device != RT_NULL);
RT_ASSERT(setup != RT_NULL);
@ -446,7 +468,7 @@ static rt_err_t _interface_handler(udevice_t device, ureq_t setup)
rt_kprintf("unknown interface request\n");
break;
}
return RT_EOK;
}
@ -462,15 +484,18 @@ static rt_err_t _class_run(udevice_t device)
RT_ASSERT(device != RT_NULL);
RT_DEBUG_LOG(RT_DEBUG_USB, ("mass storage run\n"));
disk = rt_device_find(RT_USB_MSTORAGE_DISK_NAME);
RT_ASSERT(disk != RT_NULL);
if(disk == RT_NULL)
return RT_ERROR;
if(rt_device_control(disk, RT_DEVICE_CTRL_BLK_GETGEOME, (void*)&geometry) != RT_EOK)
return RT_ERROR;
buffer = (rt_uint8_t*)rt_malloc(RT_USB_MSTORAGE_BUFFER_SIZE);
rt_device_control(disk, RT_DEVICE_CTRL_BLK_GETGEOME, (void*)&geometry);
buffer = (rt_uint8_t*)rt_malloc(geometry.bytes_per_sector);
if(buffer == RT_NULL)
return RT_ERROR;
dcd_ep_read(device->dcd, ep_out, ep_out->buffer, SIZEOF_CBW);
return RT_EOK;
}
@ -512,7 +537,7 @@ uclass_t rt_usbd_class_mstorage_create(udevice_t device)
/* parameter check */
RT_ASSERT(device != RT_NULL);
/* create a mass storage class */
mstorage = rt_usbd_class_create(device, &dev_desc, &ops);
@ -521,23 +546,23 @@ uclass_t rt_usbd_class_mstorage_create(udevice_t device)
/* create a bulk out and a bulk in endpoint */
ep_in = rt_usbd_endpoint_create(&mass_desc.ep_in_desc, _ep_in_handler);
ep_out = rt_usbd_endpoint_create(&mass_desc.ep_out_desc, _ep_out_handler);
ep_out = rt_usbd_endpoint_create(&mass_desc.ep_out_desc, _ep_out_handler);
/* create an alternate setting */
setting = rt_usbd_altsetting_create(&mass_desc.intf_desc,
sizeof(struct umass_descriptor));
setting = rt_usbd_altsetting_create(&mass_desc.intf_desc,
sizeof(struct umass_descriptor));
/* add the bulk out and bulk in endpoint to the alternate setting */
rt_usbd_altsetting_add_endpoint(setting, ep_out);
rt_usbd_altsetting_add_endpoint(setting, ep_in);
/* add the alternate setting to the interface, then set default setting */
rt_usbd_interface_add_altsetting(intf, setting);
rt_usbd_set_altsetting(intf, 0);
/* add the interface to the mass storage class */
rt_usbd_class_add_interface(mstorage, intf);
return mstorage;
}