quad-modem: Add debug console commands for debugging
diff --git a/firmware/src_simtrace/main.c b/firmware/src_simtrace/main.c
index a7fa616..358ec65 100644
--- a/firmware/src_simtrace/main.c
+++ b/firmware/src_simtrace/main.c
@@ -77,6 +77,13 @@
static volatile enum confNum simtrace_config = CFG_NUM_CCID;
#endif
+static const Pin pin_hubpwr_override = PIN_PRTPWR_OVERRIDE;
+static const Pin pin_hub_rst = {PIO_PA13, PIOA, ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT};
+static const Pin pin_1234_detect = {PIO_PA14, PIOA, ID_PIOA, PIO_INPUT, PIO_PULLUP};
+static const Pin pin_peer_rst = {PIO_PA0, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
+static const Pin pin_peer_erase = {PIO_PA11, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
+
+
/*----------------------------------------------------------------------------
* Callbacks
*----------------------------------------------------------------------------*/
@@ -97,8 +104,15 @@
config_func_ptrs[simtrace_config].usart0_irq();
}
-#include "i2c.h"
+static int qmod_sam3_is_12(void)
+{
+ if (PIO_Get(&pin_1234_detect) == 0)
+ return 1;
+ else
+ return 0;
+}
+#include "i2c.h"
static int write_hub_eeprom(void)
{
const unsigned char __eeprom_bin[] = {
@@ -127,17 +141,8 @@
};
const unsigned int __eeprom_bin_len = 256;
- const Pin pin_hubpwr_override = PIN_PRTPWR_OVERRIDE;
- const Pin pin_hub_rst = {PIO_PA13, PIOA, ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT};
int i;
- /* set PIN_PRTPWR_OVERRIDE to output-low to avoid the internal
- * pull-up on the input to keep SIMTRACE12 alive */
- PIO_Configure(&pin_hubpwr_override, 1);
-
- PIO_Configure(&pin_hub_rst, 1);
- i2c_pin_init();
-
/* wait */
volatile int v;
/* 440ns per cycle here */
@@ -145,6 +150,7 @@
v = 0;
}
+ TRACE_INFO("Writing EEPROM...\r\n");
/* write the EEPROM once */
for (i = 0; i < 256; i++) {
int rc = eeprom_write_byte(0x50, i, __eeprom_bin[i]);
@@ -154,6 +160,7 @@
}
/* then pursue re-reading it again and again */
+ TRACE_INFO("Verifying EEPROM...\r\n");
for (i = 0; i < 256; i++) {
int byte = eeprom_read_byte(0x50, i);
TRACE_INFO("0x%02x: %02x\r\n", i, byte);
@@ -169,6 +176,79 @@
return 0;
}
+static void check_exec_dbg_cmd(void)
+{
+ uint32_t addr, val;
+
+ if (!UART_IsRxReady())
+ return;
+
+ int ch = UART_GetChar();
+ switch (ch) {
+ case '?':
+ printf("\t?\thelp\r\n");
+ printf("\tE\tprogram EEPROM\r\n");
+ printf("\tR\treset SAM3\r\n");
+ printf("\tO\tEnable PRTPWR_OVERRIDE\r\n");
+ printf("\to\tDisable PRTPWR_OVERRIDE\r\n");
+ printf("\tH\tRelease HUB RESET (high)\r\n");
+ printf("\th\tAssert HUB RESET (low)\r\n");
+ printf("\tw\tWrite single byte in EEPROM\r\n");
+ printf("\tr\tRead single byte from EEPROM\r\n");
+ printf("\tX\tRelease peer SAM3 from reset\r\n");
+ printf("\tx\tAssert peer SAM3 reset\r\n");
+ printf("\tY\tRelease peer SAM3 ERASE signal\n");
+ printf("\ty\tAssert peer SAM3 ERASE signal\r\n");
+ break;
+ case 'E':
+ write_hub_eeprom();
+ break;
+ case 'R':
+ NVIC_SystemReset();
+ break;
+ case 'O':
+ PIO_Set(&pin_hubpwr_override);
+ break;
+ case 'o':
+ PIO_Clear(&pin_hubpwr_override);
+ break;
+ case 'H':
+ PIO_Clear(&pin_hub_rst);
+ break;
+ case 'h':
+ /* high level drives transistor -> HUB_RESET low */
+ PIO_Set(&pin_hub_rst);
+ break;
+ case 'w':
+ if (PIO_GetOutputDataStatus(&pin_hub_rst) == 0)
+ printf("WARNING: attempting EEPROM access while HUB not in reset\r\n");
+ printf("Please enter EEPROM offset: ");
+ UART_GetIntegerMinMax(&addr, 0, 255);
+ printf("Please enter EEPROM value: ");
+ UART_GetIntegerMinMax(&val, 0, 255);
+ printf("Writing value 0x%02x to EEPROM offset 0x%02x\r\n", val, addr);
+ eeprom_write_byte(0x50, addr, val);
+ break;
+ case 'r':
+ printf("Please enter EEPROM offset: ");
+ UART_GetIntegerMinMax(&addr, 0, 255);
+ printf("EEPROM[0x%02x] = 0x%02x\r\n", addr, eeprom_read_byte(0x50, addr));
+ break;
+ case 'X':
+ PIO_Clear(&pin_peer_rst);
+ break;
+ case 'x':
+ PIO_Set(&pin_peer_rst);
+ break;
+ case 'Y':
+ PIO_Clear(&pin_peer_erase);
+ break;
+ case 'y':
+ PIO_Set(&pin_peer_erase);
+ break;
+
+ }
+}
/*------------------------------------------------------------------------------
* Main
@@ -204,10 +284,28 @@
g_unique_id[0], g_unique_id[1],
g_unique_id[2], g_unique_id[3]);
- write_hub_eeprom();
+ /* set PIN_PRTPWR_OVERRIDE to output-low to avoid the internal
+ * pull-up on the input to keep SIMTRACE12 alive */
+ PIO_Configure(&pin_hubpwr_override, 1);
+ PIO_Configure(&pin_hub_rst, 1);
+ PIO_Configure(&pin_1234_detect, 1);
+ PIO_Configure(&pin_peer_rst, 1);
+ PIO_Configure(&pin_peer_erase, 1);
+ i2c_pin_init();
+
+ if (qmod_sam3_is_12()) {
+ TRACE_INFO("Detected Quad-Modem ST12\r\n");
+ } else {
+ TRACE_INFO("Detected Quad-Modem ST34\r\n");
+ }
+
+ while (1) {
+ check_exec_dbg_cmd();
+ }
TRACE_INFO("USB init...\r\n");
while (USBD_GetState() < USBD_STATE_CONFIGURED) {
+ check_exec_dbg_cmd();
#if 0
if (i >= MAX_USB_ITER * 3) {
TRACE_ERROR("Resetting board (USB could "
@@ -218,6 +316,9 @@
i++;
}
+ TRACE_INFO("Releasing ST12_PRTPWR_OVERRIDE\r\n");
+ PIO_Clear(&pin_hubpwr_override);
+
TRACE_INFO("calling configure of all configurations...\r\n");
for (i = 1; i < sizeof(config_func_ptrs) / sizeof(config_func_ptrs[0]);
++i) {
@@ -236,6 +337,7 @@
putchar('\b');
putchar(rotor[i++ % ARRAY_SIZE(rotor)]);
#endif
+ check_exec_dbg_cmd();
if (USBD_GetState() < USBD_STATE_CONFIGURED) {