Embedded/tinyusb
1
0
Fork 0
mirror of https://github.com/hathach/tinyusb.git synced 2025-01-17 05:32:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

add in hcd_pipe_open & hcd_pipe_xfer

Browse Source
This commit is contained in:
hathach 2013-12-17 11:26:39 +07:00
parent 75ffc0bfec
commit 915296013e
2 changed files with 124 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

136
tinyusb/host/ohci/ohci.c
View File

@ -137,6 +137,8 @@ enum {
//--------------------------------------------------------------------+
ohci_data_t ohci_data TUSB_CFG_ATTR_USBRAM;
static void ed_list_insert(ohci_ed_t * p_pre, ohci_ed_t * p_ed);
//--------------------------------------------------------------------+
// USBH-HCD API
//--------------------------------------------------------------------+
@ -145,7 +147,10 @@ tusb_error_t hcd_init(void)
{
//------------- Data Structure init -------------//
memclr_(&ohci_data, sizeof(ohci_data_t));
ohci_data.control[0].ed.skip = 1;
ohci_data.control[0].ed.skip = 1;
ohci_data.bulk_head_ed.skip = 1;
ohci_data.period_head_ed.skip = 1;
// reset controller
OHCI_REG->command_status_bit.controller_reset = 1;
@ -161,10 +166,11 @@ tusb_error_t hcd_init(void)
OHCI_REG->periodic_start = (OHCI_FMINTERVAL_FI * 9) / 10; // Periodic start is 90% of frame interval
OHCI_REG->control_head_ed = (uint32_t) &ohci_data.control[0].ed;
OHCI_REG->bulk_head_ed = (uint32_t) &ohci_data.bulk_head_ed;
OHCI_REG->hcca = (uint32_t) &ohci_data.hcca;
OHCI_REG->control |= OHCI_CONTROL_CONTROL_BULK_RATIO | OHCI_CONTROL_LIST_CONTROL_ENABLE_MASK |
0 /*OHCI_CONTROL_LIST_BULK_ENABLE_MASK*/; // TODO periodic enable
OHCI_CONTROL_LIST_BULK_ENABLE_MASK; // TODO periodic enable
OHCI_REG->rh_status_bit.local_power_status_change = 1; // set global power for ports
@ -222,9 +228,11 @@ static void ed_init(ohci_ed_t *p_ed, uint8_t dev_addr, uint16_t max_packet_size,
p_ed->speed = usbh_devices[dev_addr].speed;
p_ed->is_iso = (xfer_type == TUSB_XFER_ISOCHRONOUS) ? 1 : 0;
p_ed->max_package_size = max_packet_size;
p_ed->used = 1;
}
static void qtd_init(ohci_gtd_t* p_td, void* data_ptr, uint16_t total_bytes)
static void gtd_init(ohci_gtd_t* p_td, void* data_ptr, uint16_t total_bytes)
{
memclr_(p_td, sizeof(ohci_gtd_t));
@ -247,8 +255,7 @@ tusb_error_t hcd_pipe_control_open(uint8_t dev_addr, uint8_t max_packet_size)
if ( dev_addr != 0 )
{ // insert to control head
p_ed->next_ed = ohci_data.control[0].ed.next_ed;
ohci_data.control[0].ed.next_ed = (uint32_t) p_ed;
ed_list_insert( &ohci_data.control[0].ed, p_ed);
}else
{
p_ed->skip = 0; // addr0 is used as static control head --> only need to clear skip bit
@ -266,7 +273,7 @@ tusb_error_t hcd_pipe_control_xfer(uint8_t dev_addr, tusb_control_request_t con
ohci_gtd_t *p_status = p_setup + 2;
//------------- SETUP Phase -------------//
qtd_init(p_setup, p_request, 8);
gtd_init(p_setup, p_request, 8);
p_setup->index = dev_addr;
p_setup->pid = OHCI_PID_SETUP;
p_setup->next_td = (uint32_t) p_data;
@ -275,7 +282,7 @@ tusb_error_t hcd_pipe_control_xfer(uint8_t dev_addr, tusb_control_request_t con
//------------- DATA Phase -------------//
if (p_request->wLength > 0)
{
qtd_init(p_data, data, p_request->wLength);
gtd_init(p_data, data, p_request->wLength);
p_data->index = dev_addr;
p_data->pid = p_request->bmRequestType_bit.direction ? OHCI_PID_IN : OHCI_PID_OUT;
p_data->data_toggle = BIN8(11); // DATA1
@ -286,7 +293,7 @@ tusb_error_t hcd_pipe_control_xfer(uint8_t dev_addr, tusb_control_request_t con
p_data->next_td = (uint32_t) p_status;
//------------- STATUS Phase -------------//
qtd_init(p_status, NULL, 0); // zero-length data
gtd_init(p_status, NULL, 0); // zero-length data
p_status->index = dev_addr;
p_status->pid = p_request->bmRequestType_bit.direction ? OHCI_PID_OUT : OHCI_PID_IN; // reverse direction of data phase
p_status->data_toggle = BIN8(11); // DATA1
@ -309,19 +316,118 @@ tusb_error_t hcd_pipe_control_close(uint8_t dev_addr)
//--------------------------------------------------------------------+
// BULK/INT/ISO PIPE API
//--------------------------------------------------------------------+
static ohci_ed_t * ed_find_free(uint8_t dev_addr)
{
for(uint8_t i = 0; i < OHCI_MAX_QHD; i++)
{
if ( !ohci_data.device[dev_addr-1].ed[i].used )
{
return &ohci_data.device[dev_addr-1].ed[i];
}
}
return NULL;
}
static void ed_list_insert(ohci_ed_t * p_pre, ohci_ed_t * p_ed)
{
p_ed->next_ed = p_pre->next_ed;
p_pre->next_ed = (uint32_t) p_ed;
}
pipe_handle_t hcd_pipe_open(uint8_t dev_addr, tusb_descriptor_endpoint_t const * p_endpoint_desc, uint8_t class_code)
{
// TODO OHCI return TUSB_ERROR_NONE;
pipe_handle_t const null_handle = { .dev_addr = 0, .xfer_type = 0, .index = 0 };
// TODO iso support
ASSERT(p_endpoint_desc->bmAttributes.xfer != TUSB_XFER_ISOCHRONOUS, null_handle );
//------------- Prepare Queue Head -------------//
ohci_ed_t * const p_ed = ed_find_free(dev_addr);
ASSERT_PTR(p_ed, null_handle);
ed_init( p_ed, dev_addr, p_endpoint_desc->wMaxPacketSize.size, p_endpoint_desc->bEndpointAddress,
p_endpoint_desc->bmAttributes.xfer, p_endpoint_desc->bInterval );
p_ed->class_code = class_code;
switch(p_endpoint_desc->bmAttributes.xfer)
{
case TUSB_XFER_BULK:
ed_list_insert( &ohci_data.bulk_head_ed, p_ed );
break;
default: return null_handle; break;
}
return (pipe_handle_t)
{
.dev_addr = dev_addr,
.xfer_type = p_endpoint_desc->bmAttributes.xfer,
.index = p_ed - ohci_data.device[dev_addr-1].ed // TODO may refractor
};
}
static ohci_gtd_t * gtd_find_free(uint8_t dev_addr)
{
for(uint8_t i=0; i < OHCI_MAX_QTD; i++)
{
if (!ohci_data.device[dev_addr-1].gtd[i].used)
{
return &ohci_data.device[dev_addr-1].gtd[i];
}
}
return NULL;
}
static void td_insert_to_ed(ohci_ed_t* p_ed, ohci_gtd_t * p_gtd)
{
// tail is always NULL
if ( align16(p_ed->td_head) == 0 )
{ // TD queue is empty --> head = TD
p_ed->td_head |= (uint32_t) p_gtd;
}
else
{ // TODO currently only support queue up to 2 TD each endpoint at a time
((ohci_gtd_t*) align16(p_ed->td_head))->next_td = (uint32_t) p_gtd;
}
}
static tusb_error_t pipe_queue_xfer(pipe_handle_t pipe_hdl, uint8_t buffer[], uint16_t total_bytes, bool int_on_complete)
{
ohci_ed_t* const p_ed = &ohci_data.device[pipe_hdl.dev_addr-1].ed[pipe_hdl.index];
if ( !p_ed->is_iso )
{
ohci_gtd_t * const p_gtd = gtd_find_free(pipe_hdl.dev_addr);
ASSERT_PTR(p_gtd, TUSB_ERROR_EHCI_NOT_ENOUGH_QTD); // TODO refractor error code
gtd_init(p_gtd, buffer, total_bytes);
p_gtd->index = pipe_hdl.index;
if ( int_on_complete ) p_gtd->delay_interrupt = OHCI_INT_ON_COMPLETE_YES;
td_insert_to_ed(p_ed, p_gtd);
}else
{
ASSERT_STATUS(TUSB_ERROR_NOT_SUPPORTED_YET);
}
return TUSB_ERROR_NONE;
}
tusb_error_t hcd_pipe_queue_xfer(pipe_handle_t pipe_hdl, uint8_t buffer[], uint16_t total_bytes)
{
// TODO OHCI return TUSB_ERROR_NONE;
return pipe_queue_xfer(pipe_hdl, buffer, total_bytes, false);
}
tusb_error_t hcd_pipe_xfer(pipe_handle_t pipe_hdl, uint8_t buffer[], uint16_t total_bytes, bool int_on_complete)
{
// TODO OHCI return TUSB_ERROR_NONE;
ASSERT_STATUS( pipe_queue_xfer(pipe_hdl, buffer, total_bytes, true) );
OHCI_REG->command_status_bit.bulk_list_filled = 1;
return TUSB_ERROR_NONE;
}
/// pipe_close should only be called as a part of unmount/safe-remove process
@ -386,13 +492,7 @@ static inline bool gtd_is_control(ohci_gtd_t const * const p_qtd)
static inline ohci_ed_t* gtd_get_ed(ohci_gtd_t const * const p_qtd) ATTR_PURE ATTR_ALWAYS_INLINE;
static inline ohci_ed_t* gtd_get_ed(ohci_gtd_t const * const p_qtd)
{
if ( gtd_is_control(p_qtd) )
{ // control, index is device address
return &ohci_data.control[p_qtd->index].ed;
}else
{
return NULL;
}
return gtd_is_control(p_qtd) ? &ohci_data.control[p_qtd->index].ed : NULL;
}
static inline uint32_t gtd_xfer_byte_left(uint32_t buffer_end, uint32_t current_buffer) ATTR_CONST ATTR_ALWAYS_INLINE;

7
tinyusb/host/ohci/ohci.h
View File

@ -122,7 +122,9 @@ typedef struct {
uint32_t skip : 1;
uint32_t is_iso : 1;
uint32_t max_package_size : 11;
uint32_t : 5;
uint32_t used : 1; // HCD
uint32_t class_code : 4; // FIXME refractor to use interface number instead
//------------- Word 1 -------------//
uint32_t td_tail; // 4 lsb bits are free to use
@ -172,6 +174,9 @@ STATIC_ASSERT( sizeof(ochi_itd_t) == 32, "size is not correct" );
typedef struct {
ohci_hcca_t hcca;
ohci_ed_t bulk_head_ed; // static bulk head (dummy)
ohci_ed_t period_head_ed; // static periodic list head (dummy)
// control endpoints has reserved resources
struct {
ohci_ed_t ed;