diff options
Diffstat (limited to 'src/lpc')
| -rw-r--r-- | src/lpc/ao_usb_lpc.c | 72 |
1 files changed, 42 insertions, 30 deletions
diff --git a/src/lpc/ao_usb_lpc.c b/src/lpc/ao_usb_lpc.c index 0dfaece4..3b3226ad 100644 --- a/src/lpc/ao_usb_lpc.c +++ b/src/lpc/ao_usb_lpc.c @@ -269,13 +269,10 @@ ao_usb_epn_in_count(uint8_t 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) +static void +ao_usb_enable_ep(vuint32_t *ep, uint8_t *addr, uint16_t set_nbytes) { - uint8_t *addr = ao_usb_alloc_sram(nbytes); - ao_usb_set_ep(ep, addr, set_nbytes); - return addr; } static void @@ -293,23 +290,13 @@ ao_usb_disable_ep(vuint32_t *ep) static void 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]) + uint16_t out_bytes, uint8_t *out_addr, + uint8_t *in_addr) { - uint8_t *addr; - - 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_enable_ep(ao_usb_epn_out(n, 0), out_addr, out_bytes); ao_usb_disable_ep(ao_usb_epn_out(n, 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_enable_ep(ao_usb_epn_in(n, 0), in_addr, 0); ao_usb_disable_ep(ao_usb_epn_in(n, 1)); } @@ -327,6 +314,14 @@ ao_usb_reset(void) { ao_usb_set_address(0); ao_usb_configuration = 0; + + ao_usb_ep0_state = AO_USB_EP0_IDLE; + ao_usb_ep0_in_data = NULL; + ao_usb_ep0_in_len = 0; + ao_usb_ep0_in_max = 0; + + ao_usb_ep0_out_data = NULL; + ao_usb_ep0_out_len = 0; } static void @@ -341,17 +336,14 @@ ao_usb_set_ep0(void) lpc_usb.intstat = 0xc00003ff; - ao_usb_sram = lpc_usb_sram; - lpc_usb.epliststart = (uint32_t) (intptr_t) &lpc_usb_endpoint; lpc_usb.databufstart = ((uint32_t) (intptr_t) ao_usb_sram) & 0xffc00000; /* Set up EP 0 - a Control end point with 32 bytes of in and out buffers */ - ao_usb_ep0_rx_buffer = ao_usb_enable_ep(ao_usb_ep0_out(), AO_USB_CONTROL_SIZE, AO_USB_CONTROL_SIZE); - ao_usb_ep0_setup_buffer = ao_usb_alloc_sram(AO_USB_CONTROL_SIZE); + ao_usb_enable_ep(ao_usb_ep0_out(), ao_usb_ep0_rx_buffer, AO_USB_CONTROL_SIZE); lpc_usb_endpoint.setup = ao_usb_sram_offset(ao_usb_ep0_setup_buffer); - ao_usb_ep0_tx_buffer = ao_usb_enable_ep(ao_usb_ep0_in(), AO_USB_CONTROL_SIZE, 0); + ao_usb_enable_ep(ao_usb_ep0_in(), ao_usb_ep0_tx_buffer, 0); /* Clear all of the other endpoints */ for (e = 1; e <= 4; e++) @@ -365,10 +357,10 @@ ao_usb_set_configuration(void) debug ("ao_usb_set_configuration\n"); /* Set up the INT end point */ - ao_usb_enable_epn(AO_USB_INT_EP, 0, NULL, 0, NULL); + ao_usb_enable_epn(AO_USB_INT_EP, 0, NULL, 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 @@ -376,10 +368,18 @@ ao_usb_set_configuration(void) 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_tx_buffer[0]); ao_usb_in_tx_cur = 0; + ao_usb_in_flushed = 0; + ao_usb_in_pending = 0; + ao_wakeup(&ao_usb_in_pending); + + ao_usb_out_avail = 0; + ao_usb_configuration = 0; + ao_usb_running = 1; + ao_wakeup(&ao_usb_running); } /* Send an IN data packet */ @@ -481,7 +481,7 @@ static struct ao_usb_line_coding ao_usb_line_coding = {115200, 0, 0, 8}; /* Walk through the list of descriptors and find a match */ static void -ao_usb_get_descriptor(uint16_t value) +ao_usb_get_descriptor(uint16_t value, uint16_t length) { const uint8_t *descriptor; uint8_t type = value >> 8; @@ -495,6 +495,8 @@ ao_usb_get_descriptor(uint16_t value) len = descriptor[2]; else len = descriptor[0]; + if (len > length) + len = length; ao_usb_ep0_in_set(descriptor, len); break; } @@ -539,7 +541,7 @@ ao_usb_ep0_setup(void) break; case AO_USB_REQ_GET_DESCRIPTOR: debug ("get descriptor %d\n", ao_usb_setup.value); - ao_usb_get_descriptor(ao_usb_setup.value); + ao_usb_get_descriptor(ao_usb_setup.value, ao_usb_setup.length); break; case AO_USB_REQ_GET_CONFIGURATION: debug ("get configuration %d\n", ao_usb_configuration); @@ -958,6 +960,17 @@ ao_usb_enable(void) for (t = 0; t < 1000; t++) ao_arch_nop(); + ao_usb_sram = lpc_usb_sram; + + ao_usb_ep0_rx_buffer = ao_usb_alloc_sram(AO_USB_CONTROL_SIZE); + ao_usb_ep0_tx_buffer = ao_usb_alloc_sram(AO_USB_CONTROL_SIZE); + ao_usb_ep0_setup_buffer = ao_usb_alloc_sram(AO_USB_CONTROL_SIZE); + + ao_usb_out_rx_buffer[0] = ao_usb_alloc_sram(AO_USB_OUT_SIZE); + ao_usb_out_rx_buffer[1] = ao_usb_alloc_sram(AO_USB_OUT_SIZE); + ao_usb_in_tx_buffer[0] = ao_usb_alloc_sram(AO_USB_IN_SIZE); + ao_usb_in_tx_buffer[1] = ao_usb_alloc_sram(AO_USB_IN_SIZE); + ao_usb_set_ep0(); #if HAS_USB_PULLUP @@ -1001,7 +1014,6 @@ ao_usb_init(void) #if HAS_USB_PULLUP ao_enable_output(AO_USB_PULLUP_PORT, AO_USB_PULLUP_PIN, AO_USB_PULLUP, 0); #endif - ao_usb_enable(); debug ("ao_usb_init\n"); |