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Diffstat (limited to 'src-avr/ao_usb_avr.c')
-rw-r--r--src-avr/ao_usb_avr.c97
1 files changed, 57 insertions, 40 deletions
diff --git a/src-avr/ao_usb_avr.c b/src-avr/ao_usb_avr.c
index fbae08ba..bc6d1d38 100644
--- a/src-avr/ao_usb_avr.c
+++ b/src-avr/ao_usb_avr.c
@@ -18,7 +18,13 @@
#include "ao.h"
#include "ao_usb.h"
-//#define printf(format, args...)
+#define USB_DEBUG 0
+
+#if USB_DEBUG
+#define debug(format, args...) printf(format, ## args)
+#else
+#define debug(format, args...)
+#endif
struct ao_task __xdata ao_usb_task;
@@ -47,7 +53,6 @@ void
ao_usb_set_address(uint8_t address)
{
UDADDR = (0 << ADDEN) | address;
- ao_usb_running = 1;
ao_usb_addr_pending = 1;
}
@@ -60,14 +65,14 @@ static void
ao_usb_dump_ep(uint8_t ep)
{
UENUM = ep;
- printf ("EP %d: UECONX %02x UECFG0X %02x UECFG1X %02x UEIENX %02x UESTA0X %02x UESTA1X %02X\n",
+ debug ("EP %d: UECONX %02x UECFG0X %02x UECFG1X %02x UEIENX %02x UESTA0X %02x UESTA1X %02X\n",
ep, UECONX, UECFG0X, UECFG1X, UEIENX, UESTA0X, UESTA1X);
}
static void
ao_usb_set_ep0(void)
{
- printf ("set_ep0\n");
+ debug ("set_ep0\n");
/* Set the CONTROL max packet size, single buffered */
UENUM = 0;
UECONX = (1 << EPEN); /* Enable */
@@ -118,6 +123,7 @@ ao_usb_set_configuration(void)
UEIENX = ((1 << RXOUTE)); /* Enable OUT complete interrupt */
ao_usb_dump_ep(AO_USB_OUT_EP);
+ ao_usb_running = 1;
}
ISR(USB_GEN_vect)
@@ -171,7 +177,7 @@ ao_usb_ep0_flush(void)
cli();
UENUM = 0;
if (!(UEINTX & (1 << TXINI))) {
- printf("EP0 not accepting IN data\n");
+ debug("EP0 not accepting IN data\n");
ao_usb_ep0_set_in_pending(1);
} else {
this_len = ao_usb_ep0_in_len;
@@ -186,13 +192,13 @@ ao_usb_ep0_flush(void)
else
ao_usb_ep0_set_in_pending(1);
- printf ("Flush EP0 len %d:", this_len);
+ debug ("Flush EP0 len %d:", this_len);
while (this_len--) {
uint8_t c = *ao_usb_ep0_in_data++;
- printf(" %02x", c);
+ debug(" %02x", c);
UEDATX = c;
}
- printf ("\n");
+ debug ("\n");
/* Clear the TXINI bit to send the packet */
UEINTX &= ~(1 << TXINI);
@@ -208,17 +214,17 @@ ao_usb_ep0_fill(uint8_t len, uint8_t ack)
len = ao_usb_ep0_out_len;
ao_usb_ep0_out_len -= len;
-// printf ("EP0 UEINTX %02x UEBCLX %d UEBCHX %d\n",
+// debug ("EP0 UEINTX %02x UEBCLX %d UEBCHX %d\n",
// UEINTX, UEBCLX, UEBCHX);
/* Pull all of the data out of the packet */
- printf ("Fill EP0 len %d:", len);
+ debug ("Fill EP0 len %d:", len);
UENUM = 0;
while (len--) {
uint8_t c = UEDATX;
*ao_usb_ep0_out_data++ = c;
- printf (" %02x", c);
+ debug (" %02x", c);
}
- printf ("\n");
+ debug ("\n");
/* ACK the packet */
UEINTX &= ~ack;
@@ -238,7 +244,7 @@ ao_usb_ep0_setup(void)
ao_usb_ep0_out_len = 8;
ao_usb_ep0_fill(8, (1 << RXSTPI) | (1 << RXOUTI) | (1 << TXINI));
if (ao_usb_ep0_out_len != 0) {
- printf ("invalid setup packet length\n");
+ debug ("invalid setup packet length\n");
return;
}
@@ -266,31 +272,31 @@ ao_usb_ep0_setup(void)
ao_usb_ep0_in_len = 0;
switch(ao_usb_setup.dir_type_recip & AO_USB_SETUP_TYPE_MASK) {
case AO_USB_TYPE_STANDARD:
- printf ("Standard setup packet\n");
+ debug ("Standard setup packet\n");
switch(ao_usb_setup.dir_type_recip & AO_USB_SETUP_RECIP_MASK) {
case AO_USB_RECIP_DEVICE:
- printf ("Device setup packet\n");
+ debug ("Device setup packet\n");
switch(ao_usb_setup.request) {
case AO_USB_REQ_GET_STATUS:
- printf ("get status\n");
+ debug ("get status\n");
ao_usb_ep0_queue_byte(0);
ao_usb_ep0_queue_byte(0);
break;
case AO_USB_REQ_SET_ADDRESS:
- printf ("set address %d\n", ao_usb_setup.value);
+ debug ("set address %d\n", ao_usb_setup.value);
ao_usb_set_address(ao_usb_setup.value);
break;
case AO_USB_REQ_GET_DESCRIPTOR:
- printf ("get descriptor %d\n", ao_usb_setup.value);
+ debug ("get descriptor %d\n", ao_usb_setup.value);
ao_usb_get_descriptor(ao_usb_setup.value);
break;
case AO_USB_REQ_GET_CONFIGURATION:
- printf ("get configuration %d\n", ao_usb_configuration);
+ debug ("get configuration %d\n", ao_usb_configuration);
ao_usb_ep0_queue_byte(ao_usb_configuration);
break;
case AO_USB_REQ_SET_CONFIGURATION:
ao_usb_configuration = ao_usb_setup.value;
- printf ("set configuration %d\n", ao_usb_configuration);
+ debug ("set configuration %d\n", ao_usb_configuration);
ao_usb_set_configuration();
break;
}
@@ -299,7 +305,7 @@ ao_usb_ep0_setup(void)
#ifndef AVR
#pragma disable_warning 110
#endif
- printf ("Interface setup packet\n");
+ debug ("Interface setup packet\n");
switch(ao_usb_setup.request) {
case AO_USB_REQ_GET_STATUS:
ao_usb_ep0_queue_byte(0);
@@ -313,7 +319,7 @@ ao_usb_ep0_setup(void)
}
break;
case AO_USB_RECIP_ENDPOINT:
- printf ("Endpoint setup packet\n");
+ debug ("Endpoint setup packet\n");
switch(ao_usb_setup.request) {
case AO_USB_REQ_GET_STATUS:
ao_usb_ep0_queue_byte(0);
@@ -324,15 +330,15 @@ ao_usb_ep0_setup(void)
}
break;
case AO_USB_TYPE_CLASS:
- printf ("Class setup packet\n");
+ debug ("Class setup packet\n");
switch (ao_usb_setup.request) {
case SET_LINE_CODING:
- printf ("set line coding\n");
+ debug ("set line coding\n");
ao_usb_ep0_out_len = 7;
ao_usb_ep0_out_data = (__xdata uint8_t *) &ao_usb_line_coding;
break;
case GET_LINE_CODING:
- printf ("get line coding\n");
+ debug ("get line coding\n");
ao_usb_ep0_in_len = 7;
ao_usb_ep0_in_data = (uint8_t *) &ao_usb_line_coding;
break;
@@ -344,7 +350,7 @@ ao_usb_ep0_setup(void)
if (ao_usb_ep0_state != AO_USB_EP0_DATA_OUT) {
if (ao_usb_setup.length < ao_usb_ep0_in_len)
ao_usb_ep0_in_len = ao_usb_setup.length;
- printf ("Start ep0 in delivery %d\n", ao_usb_ep0_in_len);
+ debug ("Start ep0 in delivery %d\n", ao_usb_ep0_in_len);
ao_usb_ep0_set_in_pending(1);
}
}
@@ -355,21 +361,21 @@ ao_usb_ep0(void)
{
uint8_t intx, udint;
- printf ("usb task started\n");
+ debug ("usb task started\n");
ao_usb_ep0_state = AO_USB_EP0_IDLE;
for (;;) {
cli();
for (;;) {
udint = UDINT;
UDINT = 0;
-// printf ("UDINT %02x\n", udint);
+// debug ("UDINT %02x\n", udint);
if (udint & (1 << EORSTI)) {
ao_usb_configuration = 0;
ao_usb_set_ep0();
}
UENUM = 0;
intx = UEINTX;
-// printf ("UEINTX %02x\n", intx);
+// debug ("UEINTX %02x\n", intx);
if (intx & ((1 << RXSTPI) | (1 << RXOUTI)))
break;
if ((intx & (1 << TXINI))) {
@@ -384,11 +390,11 @@ ao_usb_ep0(void)
UEIENX = ((1 << RXSTPE) | (1 << RXOUTE)); /* Disable IN interrupt */
}
}
-// printf ("usb task sleeping...\n");
+// debug ("usb task sleeping...\n");
ao_sleep(&ao_usb_task);
}
sei();
-// printf ("UEINTX for ep0 is %02x\n", intx);
+// debug ("UEINTX for ep0 is %02x\n", intx);
if (intx & (1 << RXSTPI)) {
ao_usb_ep0_setup();
}
@@ -397,7 +403,7 @@ ao_usb_ep0(void)
ao_usb_ep0_set_in_pending(1);
}
if (intx & (1 << TXINI) && ao_usb_ep0_in_pending) {
- printf ("continue sending ep0 IN data\n");
+ debug ("continue sending ep0 IN data\n");
ao_usb_ep0_flush();
}
}
@@ -459,8 +465,6 @@ ao_usb_putchar(char c) __critical __reentrant
if (!ao_usb_running)
return;
- ao_usb_in_flushed = 0;
-
ao_usb_in_wait();
/* Queue a byte */
@@ -470,6 +474,7 @@ ao_usb_putchar(char c) __critical __reentrant
/* Send the packet when full */
if ((UEINTX & (1 << RWAL)) == 0)
ao_usb_in_send();
+ ao_usb_in_flushed = 0;
}
static char
@@ -478,10 +483,13 @@ _ao_usb_pollchar(void)
char c;
uint8_t intx;
+ if (!ao_usb_running)
+ return AO_READ_AGAIN;
+
for (;;) {
UENUM = AO_USB_OUT_EP;
intx = UEINTX;
- printf("usb_pollchar UEINTX %02d\n", intx);
+ debug("usb_pollchar UEINTX %02d\n", intx);
if (intx & (1 << RWAL))
break;
@@ -530,7 +538,9 @@ ISR(USB_COM_vect)
{
uint8_t i = UEINT;
+#ifdef AO_LED_RED
ao_led_toggle(AO_LED_RED);
+#endif
UEINT = 0;
if (i & (1 << 0))
ao_wakeup(&ao_usb_task);
@@ -544,7 +554,10 @@ ISR(USB_COM_vect)
#define AO_PAD_REGULATOR_INIT (1 << UVREGE) /* Turn on pad regulator */
#endif
#if AVR_VCC_3V3
-#define AO_PAD_REGULATOR_INIT 0 /* Turn off pad regulator */
+/* TeleScience V0.1 has a hardware bug -- UVcc is hooked up, but UCap is not
+ * Make this work by running power through UVcc to the USB system
+ */
+#define AO_PAD_REGULATOR_INIT (1 << UVREGE) /* Turn off pad regulator */
#endif
#if AVR_CLOCK == 16000000UL
@@ -598,11 +611,14 @@ ao_usb_enable(void)
ao_usb_configuration = 0;
- printf ("ao_usb_enable\n");
+ debug ("ao_usb_enable\n");
+ debug ("UHWCON %02x USBCON %02x PLLCSR %02x UDIEN %02x\n",
+ UHWCON, USBCON, PLLCSR, UDIEN);
UDCON = (0 << DETACH); /* Clear the DETACH bit to plug into the bus */
}
+#if USB_DEBUG
struct ao_task __xdata ao_usb_echo_task;
static void
@@ -616,14 +632,15 @@ ao_usb_echo(void)
ao_usb_flush();
}
}
+#endif
void
ao_usb_init(void)
{
ao_usb_enable();
- printf ("ao_usb_init\n");
+ debug ("ao_usb_init\n");
ao_add_task(&ao_usb_task, ao_usb_ep0, "usb");
- ao_add_task(&ao_usb_echo_task, ao_usb_echo, "usb echo");
-// ao_add_stdio(ao_usb_pollchar, ao_usb_putchar, ao_usb_flush);
+// ao_add_task(&ao_usb_echo_task, ao_usb_echo, "usb echo");
+ ao_add_stdio(ao_usb_pollchar, ao_usb_putchar, ao_usb_flush);
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-17 06:40:05 +0000