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simtrace2/firmware/libboard/qmod/source/board_qmod.c

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/* Quad-modem speciic application code */
/* (C) 2016-2016 by Harald Welte <laforge@gnumonks.org> */
#include "board.h"
#include "simtrace.h"
#include "utils.h"
#include "req_ctx.h"
#include "wwan_led.h"
#include "wwan_perst.h"
#include "boardver_adc.h"
#include "osmocom/core/timer.h"
static const Pin pin_hubpwr_override = PIN_PRTPWR_OVERRIDE;
static const Pin pin_hub_rst = {PIO_PA13, PIOA, ID_PIOA, PIO_OUTPUT_0, 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};
static int qmod_sam3_is_12(void)
{
if (PIO_Get(&pin_1234_detect) == 0)
return 1;
else
return 0;
}
const unsigned char __eeprom_bin[256] = {
0x23, 0x42, 0x17, 0x25, 0x00, 0x00, 0x9b, 0x20, 0x01, 0x00, 0x00, 0x00, 0x32, 0x32, 0x32, 0x32, /* 0x00 - 0x0f */
0x32, 0x04, 0x09, 0x18, 0x0d, 0x00, 0x73, 0x00, 0x79, 0x00, 0x73, 0x00, 0x6d, 0x00, 0x6f, 0x00, /* 0x10 - 0x1f */
0x63, 0x00, 0x6f, 0x00, 0x6d, 0x00, 0x20, 0x00, 0x2d, 0x00, 0x20, 0x00, 0x73, 0x00, 0x2e, 0x00, /* 0x20 - 0x2f */
0x66, 0x00, 0x2e, 0x00, 0x6d, 0x00, 0x2e, 0x00, 0x63, 0x00, 0x2e, 0x00, 0x20, 0x00, 0x47, 0x00, /* 0x30 - 0x3f */
0x6d, 0x00, 0x62, 0x00, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40 - 0x4f */
0x00, 0x00, 0x00, 0x00, 0x71, 0x00, 0x75, 0x00, 0x61, 0x00, 0x64, 0x00, 0x20, 0x00, 0x6d, 0x00, /* 0x50 - 0x5f */
0x6f, 0x00, 0x64, 0x00, 0x65, 0x00, 0x6d, 0x00, 0x20, 0x00, 0x76, 0x00, 0x32, 0x00, 0x00, 0x00, /* 0x60 - 0x6f */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70 - 0x7f */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80 - 0x8f */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90 - 0x9f */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0 - 0xaf */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0 - 0xbf */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0 - 0xcf */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0 - 0xdf */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0 - 0xef */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA0, 0x56, 0x23, 0x71, 0x04, 0x00, /* 0xf0 - 0xff */
};
#include "i2c.h"
static int write_hub_eeprom(void)
{
const unsigned int __eeprom_bin_len = 256;
int i;
/* wait */
volatile int v;
/* 440ns per cycle here */
for (i = 0; i < 1000000; i++) {
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]);
/* if the result was negative, repeat that write */
if (rc < 0)
i--;
}
/* 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);
if (byte != __eeprom_bin[i])
TRACE_ERROR("Byte %u is wrong, expected 0x%02x, found 0x%02x\r\n",
i, __eeprom_bin[i], byte);
}
/* FIXME: Release PIN_PRTPWR_OVERRIDE after we know the hub is
* again powering us up */
return 0;
}
/* returns '1' in case we should break any endless loop */
void board_exec_dbg_cmd(int ch)
{
uint32_t addr, val;
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\r\n");
printf("\ty\tAssert peer SAM3 ERASE signal\r\n");
printf("\tU\tProceed to USB Initialization\r\n");
printf("\t1\tGenerate 1ms reset pulse on WWAN1\r\n");
printf("\t2\tGenerate 1ms reset pulse on WWAN2\r\n");
break;
case 'E':
write_hub_eeprom();
break;
case 'R':
printf("Asking NVIC to reset us\r\n");
NVIC_SystemReset();
break;
case 'O':
printf("Setting PRTPWR_OVERRIDE\r\n");
PIO_Set(&pin_hubpwr_override);
break;
case 'o':
printf("Clearing PRTPWR_OVERRIDE\r\n");
PIO_Clear(&pin_hubpwr_override);
break;
case 'H':
printf("Clearing _HUB_RESET -> HUB_RESET high (inactive)\r\n");
PIO_Clear(&pin_hub_rst);
break;
case 'h':
/* high level drives transistor -> HUB_RESET low */
printf("Asserting _HUB_RESET -> HUB_RESET low (active)\r\n");
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:\r\n");
UART_GetIntegerMinMax(&addr, 0, 255);
printf("Please enter EEPROM value:\r\n");
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:\r\n");
UART_GetIntegerMinMax(&addr, 0, 255);
printf("EEPROM[0x%02x] = 0x%02x\r\n", addr, eeprom_read_byte(0x50, addr));
break;
case 'X':
printf("Clearing _SIMTRACExx_RST -> SIMTRACExx_RST high (inactive)\r\n");
PIO_Clear(&pin_peer_rst);
break;
case 'x':
printf("Setting _SIMTRACExx_RST -> SIMTRACExx_RST low (active)\r\n");
PIO_Set(&pin_peer_rst);
break;
case 'Y':
printf("Clearing SIMTRACExx_ERASE (inactive)\r\n");
PIO_Clear(&pin_peer_erase);
break;
case 'y':
printf("Seetting SIMTRACExx_ERASE (active)\r\n");
PIO_Set(&pin_peer_erase);
break;
case '1':
printf("Resetting Modem 1 (of this SAM3)\r\n");
wwan_perst_do_reset(1);
break;
case '2':
printf("Resetting Modem 2 (of this SAM3)\r\n");
wwan_perst_do_reset(2);
break;
default:
printf("Unknown command '%c'\r\n", ch);
break;
}
}
void board_main_top(void)
{
wwan_led_init();
wwan_perst_init();
/* 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");
}
/* Obtain the circuit board version (currently just prints voltage */
get_board_version_adc();
}
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