andy/tinyUSB
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

make "used" member of ehci_qtd_t into reserved place of buffer[1] (with assert check in hcd init)

Browse Source
This commit is contained in:
hathach
2013-03-07 17:59:07 +07:00
parent 1b610cf26f
commit 644f0d3932
6 changed files with 30 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
tinyusb/host/ehci/ehci.c
View File

@@ -117,6 +117,9 @@ tusb_error_t hcd_controller_init(uint8_t hostid) ATTR_WARN_UNUSED_RESULT;
//--------------------------------------------------------------------+
tusb_error_t hcd_init(void)
{
// oops, ehci_qtd_t:used must be at Reserved places in EHCI specs
ASSERT(offsetof(ehci_qtd_t, used) == 16, TUSB_ERROR_HCD_FAILED); // TODO can be removed after an THOROUGH checked
//------------- Data Structure init -------------//
memclr_(&ehci_data, sizeof(ehci_data_t));
@@ -365,7 +368,6 @@ pipe_handle_t hcd_pipe_open(uint8_t dev_addr, tusb_descriptor_endpoint_t const *
{
index++;
}
ASSERT( index < EHCI_MAX_QHD, null_handle);
ehci_qhd_t * const p_qhd = &ehci_data.device[dev_addr].qhd[index];
@@ -390,6 +392,18 @@ pipe_handle_t hcd_pipe_open(uint8_t dev_addr, tusb_descriptor_endpoint_t const *
return (pipe_handle_t) { .dev_addr = dev_addr, .xfer_type = p_endpoint_desc->bmAttributes.xfer, .index = index};
}
tusb_error_t hcd_pipe_xfer(pipe_handle_t pipe_hdl, uint8_t buffer[], uint16_t total_byte)
{
//------------- find a free qtd -------------//
// uint8_t index=0;
// while( index<EHCI_MAX_QTD && ehci_data.device[dev_addr].qtd[index].used )
// {
// index++;
// }
// ASSERT( index < EHCI_MAX_QHD, TUSB_ERROR_EHCI_NOT_ENOUGH_QTD);
return TUSB_ERROR_NONE;
}
//--------------------------------------------------------------------+
// HELPER
//--------------------------------------------------------------------+