static uint8_t *ao_usb_ep0_rx_buffer;
/* Pointer to bulk data tx/rx buffers in USB memory */
-static uint8_t *ao_usb_in_tx_buffer;
-static uint8_t *ao_usb_out_rx_buffer;
-
-/* Our data buffers */
-static uint8_t ao_usb_tx_buffer[AO_USB_IN_SIZE];
+static uint8_t *ao_usb_in_tx_buffer[2];
+static uint8_t ao_usb_in_tx_cur;
static uint8_t ao_usb_tx_count;
-static uint8_t ao_usb_rx_buffer[AO_USB_OUT_SIZE];
+static uint8_t *ao_usb_out_rx_buffer[2];
+static uint8_t ao_usb_out_rx_cur;
static uint8_t ao_usb_rx_count, ao_usb_rx_pos;
extern struct lpc_usb_endpoint lpc_usb_endpoint;
}
static inline vuint32_t *
-ao_usb_epn_out(uint8_t n)
+ao_usb_epn_out(uint8_t n, uint8_t i)
{
- return &lpc_usb_endpoint.epn[n-1].out[0];
+ return &lpc_usb_endpoint.epn[n-1].out[i];
}
static inline vuint32_t *
-ao_usb_epn_in(uint8_t n)
+ao_usb_epn_in(uint8_t n, uint8_t i)
{
- return &lpc_usb_endpoint.epn[n-1].in[0];
+ return &lpc_usb_endpoint.epn[n-1].in[i];
}
#if UNUSED
static void
ao_usb_set_epn_out(uint8_t n, uint8_t *addr, uint16_t nbytes)
{
- ao_usb_set_ep(ao_usb_epn_out(n), addr, nbytes);
+ ao_usb_set_ep(ao_usb_epn_out(n, 0), addr, nbytes);
}
static inline uint16_t
ao_usb_epn_out_count(uint8_t n)
{
- return ao_usb_ep_count(ao_usb_epn_out(n));
+ return ao_usb_ep_count(ao_usb_epn_out(n, 0));
}
static inline uint16_t
ao_usb_epn_in_count(uint8_t n)
{
- return ao_usb_ep_count(ao_usb_epn_in(n));
+ return ao_usb_ep_count(ao_usb_epn_in(n, 0));
}
static uint8_t *
ao_usb_enable_ep(vuint32_t *ep, uint16_t nbytes, uint16_t set_nbytes)
{
uint8_t *addr = ao_usb_alloc_sram(nbytes);
-
+
ao_usb_set_ep(ep, addr, set_nbytes);
return addr;
}
}
static void
-ao_usb_enable_epn(uint8_t n, uint16_t out_bytes, uint8_t **out_addr, uint16_t in_bytes, uint8_t **in_addr)
+ao_usb_enable_epn(uint8_t n,
+ uint16_t out_bytes, uint8_t *out_addrs[2],
+ uint16_t in_bytes, uint8_t *in_addrs[2])
{
uint8_t *addr;
- addr = ao_usb_enable_ep(ao_usb_epn_out(n), out_bytes, out_bytes);
- if (out_addr)
- *out_addr = addr;
- ao_usb_disable_ep(&lpc_usb_endpoint.epn[n-1].out[1]);
+ addr = ao_usb_enable_ep(ao_usb_epn_out(n, 0), out_bytes * 2, out_bytes);
+ if (out_addrs) {
+ out_addrs[0] = addr;
+ out_addrs[1] = addr + out_bytes;
+ }
+ ao_usb_disable_ep(ao_usb_epn_out(n, 1));
- addr = ao_usb_enable_ep(ao_usb_epn_in(n), in_bytes, 0);
- if (in_addr)
- *in_addr = addr;
- ao_usb_disable_ep(&lpc_usb_endpoint.epn[n-1].in[1]);
+ addr = ao_usb_enable_ep(ao_usb_epn_in(n, 0), in_bytes * 2, 0);
+ if (in_addrs) {
+ in_addrs[0] = addr;
+ in_addrs[1] = addr + in_bytes;
+ }
+ ao_usb_disable_ep(ao_usb_epn_in(n, 1));
}
static void
ao_usb_disable_epn(uint8_t n)
{
- ao_usb_disable_ep(ao_usb_epn_out(n));
- ao_usb_disable_ep(&lpc_usb_endpoint.epn[n-1].out[1]);
- ao_usb_disable_ep(ao_usb_epn_in(n));
- ao_usb_disable_ep(&lpc_usb_endpoint.epn[n-1].in[1]);
+ ao_usb_disable_ep(ao_usb_epn_out(n, 0));
+ ao_usb_disable_ep(ao_usb_epn_out(n, 1));
+ ao_usb_disable_ep(ao_usb_epn_in(n, 0));
+ ao_usb_disable_ep(ao_usb_epn_in(n, 1));
}
static void
/* Set up the INT end point */
ao_usb_enable_epn(AO_USB_INT_EP, 0, NULL, 0, NULL);
-
+
/* Set up the OUT end point */
- ao_usb_enable_epn(AO_USB_OUT_EP, AO_USB_OUT_SIZE, &ao_usb_out_rx_buffer, 0, NULL);
+ ao_usb_enable_epn(AO_USB_OUT_EP, AO_USB_OUT_SIZE, ao_usb_out_rx_buffer, 0, NULL);
+
+ /* Set the current RX pointer to the *other* buffer so that when buffer 0 gets
+ * data, we'll switch to it and pull bytes from there
+ */
+ ao_usb_out_rx_cur = 1;
/* Set up the IN end point */
- ao_usb_enable_epn(AO_USB_IN_EP, 0, NULL, AO_USB_IN_SIZE, &ao_usb_in_tx_buffer);
+ ao_usb_enable_epn(AO_USB_IN_EP, 0, NULL, AO_USB_IN_SIZE, ao_usb_in_tx_buffer);
+ ao_usb_in_tx_cur = 0;
ao_usb_running = 1;
}
ao_usb_in_pending = 1;
if (ao_usb_tx_count != AO_USB_IN_SIZE)
ao_usb_in_flushed = 1;
- memcpy(ao_usb_in_tx_buffer, ao_usb_tx_buffer, ao_usb_tx_count);
- ao_usb_set_ep(ao_usb_epn_in(AO_USB_IN_EP), ao_usb_in_tx_buffer, ao_usb_tx_count);
+ ao_usb_set_ep(ao_usb_epn_in(AO_USB_IN_EP, 0), ao_usb_in_tx_buffer[ao_usb_in_tx_cur], ao_usb_tx_count);
+ ao_usb_in_tx_cur = 1 - ao_usb_in_tx_cur;
ao_usb_tx_count = 0;
_tx_dbg0("in_send end");
}
_ao_usb_in_wait();
ao_usb_in_flushed = 0;
- ao_usb_tx_buffer[ao_usb_tx_count++] = (uint8_t) c;
+ ao_usb_in_tx_buffer[ao_usb_in_tx_cur][ao_usb_tx_count++] = (uint8_t) c;
/* Send the packet when full */
if (ao_usb_tx_count == AO_USB_IN_SIZE) {
_rx_dbg1("out_recv count", ao_usb_rx_count);
debug ("recv %d\n", ao_usb_rx_count);
- debug_data("Fill OUT len %d:", ao_usb_rx_count);
- memcpy(ao_usb_rx_buffer, ao_usb_out_rx_buffer, ao_usb_rx_count);
- debug_data("\n");
+ debug_data("Fill OUT len %d\n", ao_usb_rx_count);
ao_usb_rx_pos = 0;
+ ao_usb_out_rx_cur = 1 - ao_usb_out_rx_cur;
/* ACK the packet */
- ao_usb_set_epn_out(AO_USB_OUT_EP, ao_usb_out_rx_buffer, AO_USB_OUT_SIZE);
+ ao_usb_set_epn_out(AO_USB_OUT_EP, ao_usb_out_rx_buffer[1-ao_usb_out_rx_cur], AO_USB_OUT_SIZE);
}
int
}
/* Pull a character out of the fifo */
- c = ao_usb_rx_buffer[ao_usb_rx_pos++];
+ c = ao_usb_out_rx_buffer[ao_usb_out_rx_cur][ao_usb_rx_pos++];
return c;
}
/* Enable USB PHY */
lpc_scb.pdruncfg &= ~(1 << LPC_SCB_PDRUNCFG_USBPAD_PD);
-
+
/* Turn on USB PLL */
lpc_scb.pdruncfg &= ~(1 << LPC_SCB_PDRUNCFG_USBPLL_PD);
dbg[dbg_i].primask = primask;
#if TX_DBG
dbg[dbg_i].in_count = in_count;
- dbg[dbg_i].in_ep = *ao_usb_epn_in(AO_USB_IN_EP);
+ dbg[dbg_i].in_ep = *ao_usb_epn_in(AO_USB_IN_EP, 0);
dbg[dbg_i].in_pending = ao_usb_in_pending;
dbg[dbg_i].tx_count = ao_usb_tx_count;
dbg[dbg_i].in_flushed = ao_usb_in_flushed;
dbg[dbg_i].rx_count = ao_usb_rx_count;
dbg[dbg_i].rx_pos = ao_usb_rx_pos;
dbg[dbg_i].out_avail = ao_usb_out_avail;
- dbg[dbg_i].out_ep = *ao_usb_epn_out(AO_USB_OUT_EP);
+ dbg[dbg_i].out_ep = *ao_usb_epn_out(AO_USB_OUT_EP, 0);
#endif
if (++dbg_i == NUM_USB_DBG)
dbg_i = 0;
projects / fw / altos / blobdiff