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added support for dcd_edpt_xfer_fifo

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This commit is contained in:
kkitayam 2021-05-30 22:49:53 +09:00
parent 1c2e353193
commit 3f49380b37
1 changed files with 62 additions and 24 deletions
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86
src/portable/renesas/usba/dcd_usba.c
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@ -127,6 +127,7 @@ typedef struct TU_ATTR_PACKED
uint16_t remaining; /* the number of bytes remaining in the buffer */
struct {
uint32_t ep : 8; /* an assigned endpoint address */
uint32_t ff : 1; /* `buf` is TU_FUFO or POD */
uint32_t : 0;
};
} pipe_state_t;
@ -287,8 +288,12 @@ static bool pipe0_xfer_in(void)
const unsigned len = TU_MIN(mps, rem);
void *buf = pipe->buf;
if (len) {
pipe_write_packet(buf, &USB0.CFIFO.WORD, len);
pipe->buf = (uint8_t*)buf + len;
if (pipe->ff) {
tu_fifo_read_n_const_addr_full_words(buf, (void*)&USB0.CFIFO.WORD, len);
} else {
pipe_write_packet(buf, &USB0.CFIFO.WORD, len);
pipe->buf = (uint8_t*)buf + len;
}
}
if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BVAL;
pipe->remaining = rem - len;
@ -305,8 +310,12 @@ static bool pipe0_xfer_out(void)
const unsigned len = TU_MIN(TU_MIN(rem, mps), vld);
void *buf = pipe->buf;
if (len) {
pipe_read_packet(buf, &USB0.CFIFO.WORD, len);
pipe->buf = (uint8_t*)buf + len;
if (pipe->ff) {
tu_fifo_write_n_const_addr_full_words(buf, (void*)&USB0.CFIFO.WORD, len);
} else {
pipe_read_packet(buf, &USB0.CFIFO.WORD, len);
pipe->buf = (uint8_t*)buf + len;
}
}
if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BCLR;
pipe->remaining = rem - len;
@ -333,8 +342,12 @@ static bool pipe_xfer_in(unsigned num)
const unsigned len = TU_MIN(rem, mps);
void *buf = pipe->buf;
if (len) {
pipe_write_packet(buf, &USB0.D0FIFO.WORD, len);
pipe->buf = (uint8_t*)buf + len;
if (pipe->ff) {
tu_fifo_read_n_const_addr_full_words(buf, (void*)&USB0.D0FIFO.WORD, len);
} else {
pipe_write_packet(buf, &USB0.D0FIFO.WORD, len);
pipe->buf = (uint8_t*)buf + len;
}
}
if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL;
USB0.D0FIFOSEL.WORD = 0;
@ -355,8 +368,12 @@ static bool pipe_xfer_out(unsigned num)
const unsigned len = TU_MIN(TU_MIN(rem, mps), vld);
void *buf = pipe->buf;
if (len) {
pipe_read_packet(buf, &USB0.D0FIFO.WORD, len);
pipe->buf = (uint8_t*)buf + len;
if (pipe->ff) {
tu_fifo_write_n_const_addr_full_words(buf, (void*)&USB0.D0FIFO.WORD, len);
} else {
pipe_read_packet(buf, &USB0.D0FIFO.WORD, len);
pipe->buf = (uint8_t*)buf + len;
}
}
if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BCLR;
USB0.D0FIFOSEL.WORD = 0;
@ -396,10 +413,8 @@ static void process_status_completion(uint8_t rhport)
dcd_event_xfer_complete(rhport, ep_addr, 0, XFER_RESULT_SUCCESS, true);
}
static bool process_pipe0_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer, uint16_t total_bytes)
static bool process_pipe0_xfer(int buffer_type, uint8_t ep_addr, void* buffer, uint16_t total_bytes)
{
(void)rhport;
/* configure fifo direction and access unit settings */
if (ep_addr) { /* IN, 2 bytes */
USB0.CFIFOSEL.WORD = USB_FIFOSEL_TX | USB_FIFOSEL_MBW_16 | (TU_BYTE_ORDER == TU_BIG_ENDIAN ? USB_FIFOSEL_BIGEND : 0);
@ -410,6 +425,7 @@ static bool process_pipe0_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer,
}
pipe_state_t *pipe = &_dcd.pipe[0];
pipe->ff = buffer_type;
pipe->length = total_bytes;
pipe->remaining = total_bytes;
if (total_bytes) {
@ -427,10 +443,8 @@ static bool process_pipe0_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer,
return true;
}
static bool process_pipe_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer, uint16_t total_bytes)
static bool process_pipe_xfer(int buffer_type, uint8_t ep_addr, void* buffer, uint16_t total_bytes)
{
(void)rhport;
const unsigned epn = tu_edpt_number(ep_addr);
const unsigned dir = tu_edpt_dir(ep_addr);
const unsigned num = _dcd.ep[dir][epn];
@ -438,11 +452,19 @@ static bool process_pipe_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer,
TU_ASSERT(num);
pipe_state_t *pipe = &_dcd.pipe[num];
pipe->ff = buffer_type;
pipe->buf = buffer;
pipe->length = total_bytes;
pipe->remaining = total_bytes;
if (dir) { /* IN */
pipe_xfer_in(num);
if (total_bytes) {
pipe_xfer_in(num);
} else { /* ZLP */
USB0.D0FIFOSEL.WORD = num;
pipe_wait_for_ready(num);
USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL;
USB0.D0FIFOSEL.WORD = 0;
}
} else {
volatile reg_pipetre_t *pt = get_pipetre(num);
if (pt) {
@ -459,13 +481,23 @@ static bool process_pipe_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer,
return true;
}
static bool process_edpt_xfer(int buffer_type, uint8_t ep_addr, void* buffer, uint16_t total_bytes)
{
const unsigned epn = tu_edpt_number(ep_addr);
if (0 == epn) {
return process_pipe0_xfer(buffer_type, ep_addr, buffer, total_bytes);
} else {
return process_pipe_xfer(buffer_type, ep_addr, buffer, total_bytes);
}
}
static void process_pipe0_bemp(uint8_t rhport)
{
bool completed = pipe0_xfer_in();
if (completed) {
pipe_state_t *pipe = &_dcd.pipe[0];
dcd_event_xfer_complete(rhport, tu_edpt_addr(0, TUSB_DIR_IN),
pipe->length, XFER_RESULT_SUCCESS, true);
pipe->length, XFER_RESULT_SUCCESS, true);
}
}
@ -486,8 +518,8 @@ static void process_pipe_brdy(uint8_t rhport, unsigned num)
}
if (completed) {
dcd_event_xfer_complete(rhport, pipe->ep,
pipe->length - pipe->remaining,
XFER_RESULT_SUCCESS, true);
pipe->length - pipe->remaining,
XFER_RESULT_SUCCESS, true);
// TU_LOG1("C %d %d\r\n", num, pipe->length - pipe->remaining);
}
}
@ -692,13 +724,19 @@ void dcd_edpt_close(uint8_t rhport, uint8_t ep_addr)
bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer, uint16_t total_bytes)
{
bool r;
const unsigned epn = tu_edpt_number(ep_addr);
dcd_int_disable(rhport);
if (0 == epn) {
r = process_pipe0_xfer(rhport, ep_addr, buffer, total_bytes);
} else {
r = process_pipe_xfer(rhport, ep_addr, buffer, total_bytes);
}
r = process_edpt_xfer(0, ep_addr, buffer, total_bytes);
dcd_int_enable(rhport);
return r;
}
bool dcd_edpt_xfer_fifo(uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff, uint16_t total_bytes)
{
// USB buffers always work in bytes so to avoid unnecessary divisions we demand item_size = 1
TU_ASSERT(ff->item_size == 1);
bool r;
dcd_int_disable(rhport);
r = process_edpt_xfer(1, ep_addr, ff, total_bytes);
dcd_int_enable(rhport);
return r;
}