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add some document for msc_device API

This commit is contained in:
hathach 2013-12-01 12:18:26 +07:00
parent e0db04e6b4
commit d2f91af6b3
3 changed files with 52 additions and 6 deletions
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4
demos/device/device_os_none/main.c
View File

@ -118,10 +118,10 @@ int main(void)
//--------------------------------------------------------------------+
OSAL_TASK_FUNCTION( led_blinking_task ) (void* p_task_para)
{
static uint32_t led_on_mask = 0;
OSAL_TASK_LOOP_BEGIN
static uint32_t led_on_mask = 0;
osal_task_delay(1000);
board_leds(led_on_mask, 1 - led_on_mask);

53
tinyusb/class/msc_device.h
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@ -55,7 +55,6 @@
//--------------------------------------------------------------------+
// APPLICATION API
//--------------------------------------------------------------------+
//bool tusbd_msc_is_configured(uint8_t coreid);
//--------------------------------------------------------------------+
// APPLICATION CALLBACK API
@ -64,11 +63,57 @@ void tusbd_msc_mounted_cb(uint8_t coreid);
void tusbd_msc_unmounted_cb(uint8_t coreid);
// return 0 will end up with stall transaction
uint16_t tusbd_msc_read10_cb (uint8_t coreid, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count) ATTR_WARN_UNUSED_RESULT;
uint16_t tusbd_msc_write10_cb(uint8_t coreid, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count) ATTR_WARN_UNUSED_RESULT;
/** \brief Callback that is invoked when tinyusb stack received \ref SCSI_CMD_READ_10 command from host
* \param[in] coreid USB Controller ID
* \param[in] lun Targeted Logical Unit
* \param[out] pp_buffer Pointer to buffer which application need to update with the response data's address.
* Must be accessible by USB controller (see \ref TUSB_CFG_ATTR_USBRAM)
* \param[in] lba Starting Logical Block Address to be read
* \param[in] block_count Number of requested block
* \retval non-zero Actual number of block that application processed, must be less than or equal to \a \b block_count.
* \retval zero Indicate error in retrieving data from application. Tinyusb device stack will \b STALL the corresponding
* endpoint and return failed status in command status wrapper phase.
* \note Host can request dozens of Kbytes in one command e.g \a \b block_count = 128, it is insufficient to require
* application to have that much of buffer. Instead, application can return the number of blocks it can processed,
* the stack after transferred that amount of data will continue to invoke this callback with adjusted \a \b lba and \a \b block_count.
* \n\n Although this callback is called by tinyusb device task (non-isr context), however as all the classes share
* the same task (to save resource), any delay in this callback will cause delay in reponse on other classes.
*/
uint16_t tusbd_msc_read10_cb (uint8_t coreid, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count);
/** \brief Callback that is invoked when tinyusb stack received \ref SCSI_CMD_WRITE_10 command from host
* \param[in] coreid USB Controller ID
* \param[in] lun Targeted Logical Unit
* \param[out] pp_buffer Pointer to buffer which application need to update with the address to hold data from host
* Must be accessible by USB controller (see \ref TUSB_CFG_ATTR_USBRAM)
* \param[in] lba Starting Logical Block Address to be write
* \param[in] block_count Number of requested block
* \retval non-zero Actual number of block that application can receive and must be less than or equal to \a \b block_count.
* \retval zero Indicate error in retrieving data from application. Tinyusb device stack will \b STALL the corresponding
* endpoint and return failed status in command status wrapper phase.
* \note Host can request dozens of Kbytes in one command e.g \a \b block_count = 128, it is insufficient to require
* application to have that much of buffer. Instead, application can return the number of blocks it can processed,
* the stack after transferred that amount of data will continue to invoke this callback with adjusted \a \b lba and \a \b block_count.
* \n\n Although this callback is called by tinyusb device task (non-isr context), however as all the classes share
* the same task (to save resource), any delay in this callback will cause delay in reponse on other classes.
*/
uint16_t tusbd_msc_write10_cb(uint8_t coreid, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count);
// p_length [in,out] allocated/maximum length, application update with actual length
/** \brief Callback that is invoked when tinyusb stack received an SCSI command other than \ref SCSI_CMD_WRITE_10 and
* \ref SCSI_CMD_READ_10 command from host
* \param[in] coreid USB Controller ID
* \param[in] lun Targeted Logical Unit
* \param[in] scsi_cmd SCSI command contents, application should examine this command block to know which command host requested
* \param[out] pp_buffer Pointer to buffer which application need to update with the address to transceive data with host
* Must be accessible by USB controller (see \ref TUSB_CFG_ATTR_USBRAM)
* \param[in] p_length length
* \retval non-zero Actual number of block that application can receive and must be less than or equal to \a \b block_count.
* \retval zero Indicate error in retrieving data from application. Tinyusb device stack will \b STALL the corresponding
* endpoint and return failed status in command status wrapper phase.
* \note Although this callback is called by tinyusb device task (non-isr context), however as all the classes share
* the same task (to save resource), any delay in this callback will cause delay in reponse on other classes.
*/
msc_csw_status_t tusbd_msc_scsi_received_isr (uint8_t coreid, uint8_t lun, uint8_t scsi_cmd[16], void ** pp_buffer, uint16_t* p_length);
/** @} */

1
tinyusb/class/msc_host.h
View File

@ -72,6 +72,7 @@ bool tusbh_msc_is_mounted(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_
*/
bool tusbh_msc_is_busy(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
// TODO refractor
bool tusbh_msc_is_failed(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
/** \brief Get SCSI vendor's name of MassStorage device