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Merge pull request #1327 from hathach/msc-request-sense 

Add msc request sense callback
This commit is contained in:
Ha Thach 2022-02-15 23:17:58 +07:00 committed by GitHub
parent de4932d9c5 46f4f7ff49
commit fcca8bb4ca
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 43 additions and 58 deletions
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5
examples/device/cdc_msc/src/msc_disk.c
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@ -243,11 +243,6 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
switch (scsi_cmd[0])
{
case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
// Host is about to read/write etc ... better not to disconnect disk
resplen = 0;
break;
default:
// Set Sense = Invalid Command Operation
tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00);

5
examples/device/cdc_msc_freertos/src/msc_disk.c
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@ -221,11 +221,6 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
switch (scsi_cmd[0])
{
case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
// Host is about to read/write etc ... better not to disconnect disk
resplen = 0;
break;
default:
// Set Sense = Invalid Command Operation
tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00);

5
examples/device/dynamic_configuration/src/msc_disk.c
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@ -221,11 +221,6 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
switch (scsi_cmd[0])
{
case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
// Host is about to read/write etc ... better not to disconnect disk
resplen = 0;
break;
default:
// Set Sense = Invalid Command Operation
tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00);

22
examples/device/msc_dual_lun/src/msc_disk_dual.c
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@ -28,6 +28,9 @@
#if CFG_TUD_MSC
// When button is pressed, LUN1 will be set to not ready to simulate
// medium not present (e.g SD card removed)
// Some MCU doesn't have enough 8KB SRAM to store the whole disk
// We will use Flash as read-only disk with board that has
// CFG_EXAMPLE_MSC_READONLY defined
@ -227,7 +230,7 @@ void tud_msc_inquiry_cb(uint8_t lun, uint8_t vendor_id[8], uint8_t product_id[16
// return true allowing host to read/write this LUN e.g SD card inserted
bool tud_msc_test_unit_ready_cb(uint8_t lun)
{
(void) lun;
if ( lun == 1 && board_button_read() ) return false;
return true; // RAM disk is always ready
}
@ -320,23 +323,6 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
switch (scsi_cmd[0])
{
case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
// Host is about to read/write etc ... better not to disconnect disk
resplen = 0;
break;
case SCSI_CMD_START_STOP_UNIT:
// Host try to eject/safe remove/poweroff us. We could safely disconnect with disk storage, or go into lower power
/* scsi_start_stop_unit_t const * start_stop = (scsi_start_stop_unit_t const *) scsi_cmd;
// Start bit = 0 : low power mode, if load_eject = 1 : unmount disk storage as well
// Start bit = 1 : Ready mode, if load_eject = 1 : mount disk storage
start_stop->start;
start_stop->load_eject;
*/
resplen = 0;
break;
default:
// Set Sense = Invalid Command Operation
tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00);

61
src/class/msc/msc_device.c
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@ -209,7 +209,7 @@ TU_ATTR_UNUSED static tu_lookup_entry_t const _msc_scsi_cmd_lookup[] =
{ .key = SCSI_CMD_MODE_SELECT_6 , .data = "Mode_Select 6" },
{ .key = SCSI_CMD_MODE_SENSE_6 , .data = "Mode_Sense 6" },
{ .key = SCSI_CMD_START_STOP_UNIT , .data = "Start Stop Unit" },
{ .key = SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL , .data = "Prevent Allow Medium Removal" },
{ .key = SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL , .data = "Prevent/Allow Medium Removal" },
{ .key = SCSI_CMD_READ_CAPACITY_10 , .data = "Read Capacity10" },
{ .key = SCSI_CMD_REQUEST_SENSE , .data = "Request Sense" },
{ .key = SCSI_CMD_READ_FORMAT_CAPACITY , .data = "Read Format Capacity" },
@ -239,6 +239,12 @@ bool tud_msc_set_sense(uint8_t lun, uint8_t sense_key, uint8_t add_sense_code, u
return true;
}
static inline void set_sense_medium_not_present(uint8_t lun)
{
// default sense is NOT READY, MEDIUM NOT PRESENT
tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x3A, 0x00);
}
//--------------------------------------------------------------------+
// USBD Driver API
//--------------------------------------------------------------------+
@ -406,7 +412,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
return false;
}
TU_LOG(MSC_DEBUG, " SCSI Command: %s\r\n", tu_lookup_find(&_msc_scsi_cmd_table, p_cbw->command[0]));
TU_LOG(MSC_DEBUG, " SCSI Command [Lun%u]: %s\r\n", p_cbw->lun, tu_lookup_find(&_msc_scsi_cmd_table, p_cbw->command[0]));
//TU_LOG_MEM(MSC_DEBUG, p_cbw, xferred_bytes, 2);
p_csw->signature = MSC_CSW_SIGNATURE;
@ -473,7 +479,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
if ( resplen < 0 )
{
// unsupported command
TU_LOG(MSC_DEBUG, " SCSI unsupported command\r\n");
TU_LOG(MSC_DEBUG, " SCSI unsupported or failed command\r\n");
fail_scsi_op(rhport, p_msc, MSC_CSW_STATUS_FAILED);
}
else if (resplen == 0)
@ -508,7 +514,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
break;
case MSC_STAGE_DATA:
TU_LOG(MSC_DEBUG, " SCSI Data\r\n");
TU_LOG(MSC_DEBUG, " SCSI Data [Lun%u]\r\n", p_cbw->lun);
//TU_LOG_MEM(MSC_DEBUG, _mscd_buf, xferred_bytes, 2);
if (SCSI_CMD_READ_10 == p_cbw->command[0])
@ -569,7 +575,7 @@ bool mscd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t
// Wait for the Status phase to complete
if( (ep_addr == p_msc->ep_in) && (xferred_bytes == sizeof(msc_csw_t)) )
{
TU_LOG(MSC_DEBUG, " SCSI Status = %u\r\n", p_csw->status);
TU_LOG(MSC_DEBUG, " SCSI Status [Lun%u] = %u\r\n", p_cbw->lun, p_csw->status);
// TU_LOG_MEM(MSC_DEBUG, p_csw, xferred_bytes, 2);
// Invoke complete callback if defined
@ -654,8 +660,8 @@ static int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_
// Failed status response
resplen = - 1;
// If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable
if ( p_msc->sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00);
// set default sense if not set by callback
if ( p_msc->sense_key == 0 ) set_sense_medium_not_present(lun);
}
break;
@ -670,8 +676,8 @@ static int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_
// Failed status response
resplen = - 1;
// If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable
if ( p_msc->sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00);
// set default sense if not set by callback
if ( p_msc->sense_key == 0 ) set_sense_medium_not_present(lun);
}
}
break;
@ -691,13 +697,13 @@ static int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_
{
resplen = -1;
// If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable
if ( p_msc->sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00);
// set default sense if not set by callback
if ( p_msc->sense_key == 0 ) set_sense_medium_not_present(lun);
}else
{
scsi_read_capacity10_resp_t read_capa10;
read_capa10.last_lba = tu_htonl(block_count-1);
read_capa10.last_lba = tu_htonl(block_count-1);
read_capa10.block_size = tu_htonl(block_size);
resplen = sizeof(read_capa10);
@ -727,8 +733,8 @@ static int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_
{
resplen = -1;
// If sense key is not set by callback, default to Logical Unit Not Ready, Cause Not Reportable
if ( p_msc->sense_key == 0 ) tud_msc_set_sense(lun, SCSI_SENSE_NOT_READY, 0x04, 0x00);
// set default sense if not set by callback
if ( p_msc->sense_key == 0 ) set_sense_medium_not_present(lun);
}else
{
read_fmt_capa.block_num = tu_htonl(block_count);
@ -765,10 +771,10 @@ static int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_
{
scsi_mode_sense6_resp_t mode_resp =
{
.data_len = 3,
.medium_type = 0,
.write_protected = false,
.reserved = 0,
.data_len = 3,
.medium_type = 0,
.write_protected = false,
.reserved = 0,
.block_descriptor_len = 0 // no block descriptor are included
};
@ -789,12 +795,11 @@ static int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_
{
scsi_sense_fixed_resp_t sense_rsp =
{
.response_code = 0x70,
.response_code = 0x70, // current, fixed format
.valid = 1
};
sense_rsp.add_sense_len = sizeof(scsi_sense_fixed_resp_t) - 8;
sense_rsp.add_sense_len = sizeof(scsi_sense_fixed_resp_t) - 8;
sense_rsp.sense_key = p_msc->sense_key;
sense_rsp.add_sense_code = p_msc->add_sense_code;
sense_rsp.add_sense_qualifier = p_msc->add_sense_qualifier;
@ -802,6 +807,12 @@ static int32_t proc_builtin_scsi(uint8_t lun, uint8_t const scsi_cmd[16], uint8_
resplen = sizeof(sense_rsp);
memcpy(buffer, &sense_rsp, resplen);
// request sense callback could overwrite the sense data
if (tud_msc_request_sense_cb)
{
resplen = tud_msc_request_sense_cb(lun, buffer, bufsize);
}
// Clear sense data after copy
tud_msc_set_sense(lun, 0, 0, 0);
}
@ -835,8 +846,8 @@ static void proc_read10_cmd(uint8_t rhport, mscd_interface_t* p_msc)
// negative means error -> endpoint is stalled & status in CSW set to failed
TU_LOG(MSC_DEBUG, " tud_msc_read10_cb() return -1\r\n");
// Sense = Flash not ready for access
tud_msc_set_sense(p_cbw->lun, SCSI_SENSE_MEDIUM_ERROR, 0x33, 0x00);
// set sense
set_sense_medium_not_present(p_cbw->lun);
fail_scsi_op(rhport, p_msc, MSC_CSW_STATUS_FAILED);
}
@ -900,8 +911,8 @@ static void proc_write10_new_data(uint8_t rhport, mscd_interface_t* p_msc, uint3
// update actual byte before failed
p_msc->xferred_len += xferred_bytes;
// Sense = Flash not ready for access
tud_msc_set_sense(p_cbw->lun, SCSI_SENSE_MEDIUM_ERROR, 0x33, 0x00);
// Set sense
set_sense_medium_not_present(p_cbw->lun);
fail_scsi_op(rhport, p_msc, MSC_CSW_STATUS_FAILED);
}else

3
src/class/msc/msc_device.h
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@ -131,6 +131,9 @@ TU_ATTR_WEAK uint8_t tud_msc_get_maxlun_cb(void);
// - Start = 1 : active mode, if load_eject = 1 : load disk storage
TU_ATTR_WEAK bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, bool load_eject);
// Invoked when received REQUEST_SENSE
TU_ATTR_WEAK int32_t tud_msc_request_sense_cb(uint8_t lun, void* buffer, uint16_t bufsize);
// Invoked when Read10 command is complete
TU_ATTR_WEAK void tud_msc_read10_complete_cb(uint8_t lun);