diff options
Diffstat (limited to 'src/lpc/ao_usb_lpc.c')
| -rw-r--r-- | src/lpc/ao_usb_lpc.c | 76 |
1 files changed, 18 insertions, 58 deletions
diff --git a/src/lpc/ao_usb_lpc.c b/src/lpc/ao_usb_lpc.c index 499de9e9..12f5d8e6 100644 --- a/src/lpc/ao_usb_lpc.c +++ b/src/lpc/ao_usb_lpc.c @@ -80,12 +80,14 @@ static uint8_t *ao_usb_ep0_setup_buffer; 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[2]; -static uint8_t ao_usb_in_tx_cur; +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_tx_count; -static uint8_t *ao_usb_out_rx_buffer[2]; -static uint8_t ao_usb_out_rx_cur; +static uint8_t ao_usb_rx_buffer[AO_USB_OUT_SIZE]; static uint8_t ao_usb_rx_count, ao_usb_rx_pos; extern struct lpc_usb_endpoint lpc_usb_endpoint; @@ -106,7 +108,7 @@ static uint8_t ao_usb_in_pending; /* Marks when an OUT packet has been received by the hardware * but not pulled to the shadow buffer. */ -uint8_t ao_usb_out_avail; +static uint8_t ao_usb_out_avail; uint8_t ao_usb_running; static uint8_t ao_usb_configuration; @@ -360,16 +362,12 @@ ao_usb_set_configuration(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 * 2, &ao_usb_out_rx_buffer[0], 0, NULL); - ao_usb_out_rx_buffer[1] = ao_usb_out_rx_buffer[0] + AO_USB_OUT_SIZE; - ao_usb_out_rx_cur = 0; + ao_usb_enable_epn(AO_USB_OUT_EP, AO_USB_OUT_SIZE, &ao_usb_out_rx_buffer, 0, NULL); /* Set up the IN end point */ - ao_usb_enable_epn(AO_USB_IN_EP, 0, NULL, AO_USB_IN_SIZE * 2, &ao_usb_in_tx_buffer[0]); - ao_usb_in_tx_buffer[1] = ao_usb_in_tx_buffer[0] + AO_USB_IN_SIZE; - ao_usb_in_tx_cur = 0; + ao_usb_enable_epn(AO_USB_IN_EP, 0, NULL, AO_USB_IN_SIZE, &ao_usb_in_tx_buffer); ao_usb_running = 1; } @@ -718,8 +716,8 @@ _ao_usb_in_send(void) ao_usb_in_pending = 1; if (ao_usb_tx_count != AO_USB_IN_SIZE) ao_usb_in_flushed = 1; - ao_usb_set_ep(ao_usb_epn_in(AO_USB_IN_EP), 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; + 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_tx_count = 0; _tx_dbg0("in_send end"); } @@ -771,12 +769,10 @@ ao_usb_putchar(char c) ao_arch_block_interrupts(); _ao_usb_in_wait(); - ao_arch_release_interrupts(); ao_usb_in_flushed = 0; - ao_usb_in_tx_buffer[ao_usb_in_tx_cur][ao_usb_tx_count++] = (uint8_t) c; + ao_usb_tx_buffer[ao_usb_tx_count++] = (uint8_t) c; - ao_arch_block_interrupts(); /* Send the packet when full */ if (ao_usb_tx_count == AO_USB_IN_SIZE) { _tx_dbg0("putchar full"); @@ -786,43 +782,6 @@ ao_usb_putchar(char c) ao_arch_release_interrupts(); } -void * -ao_usb_alloc(uint16_t len) -{ - return ao_usb_alloc_sram(len); -} - -void -ao_usb_write(void *block, int len) -{ - uint8_t *b = block; - int this_time; - - if (!ao_usb_running) - return; - - if (!ao_usb_in_flushed) - ao_usb_flush(); - - while (len) { - ao_usb_in_flushed = 0; - this_time = AO_USB_IN_SIZE; - if (this_time > len) - this_time = len; - b += this_time; - len -= this_time; - - ao_arch_block_interrupts(); - while (ao_usb_in_pending) - ao_sleep(&ao_usb_in_pending); - ao_usb_in_pending = 1; - if (this_time != AO_USB_IN_SIZE) - ao_usb_in_flushed = 1; - ao_usb_set_ep(ao_usb_epn_in(AO_USB_IN_EP), b, this_time); - ao_arch_release_interrupts(); - } -} - static void _ao_usb_out_recv(void) { @@ -833,12 +792,13 @@ _ao_usb_out_recv(void) _rx_dbg1("out_recv count", ao_usb_rx_count); debug ("recv %d\n", ao_usb_rx_count); - debug_data("Fill OUT len %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"); ao_usb_rx_pos = 0; - ao_usb_rx_out_cur = 1 - ao_usb_rx_out_cur; /* ACK the packet */ - ao_usb_set_epn_out(AO_USB_OUT_EP, ao_usb_out_rx_buffer[1-ao_usb_rx_out_cur], AO_USB_OUT_SIZE); + ao_usb_set_epn_out(AO_USB_OUT_EP, ao_usb_out_rx_buffer, AO_USB_OUT_SIZE); } int @@ -863,7 +823,7 @@ _ao_usb_pollchar(void) } /* Pull a character out of the fifo */ - c = ao_usb_rx_buffer[ao_usb_rx_out_cur][ao_usb_rx_pos++]; + c = ao_usb_rx_buffer[ao_usb_rx_pos++]; return c; } |