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[spi-hdlc-adapter] add delay after reset the RCP chip (#3968)

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This commit is contained in:
Zhanglong Xia
2019-07-10 06:07:10 -07:00
committed by Jonathan Hui
parent 6a2c3ba10c
commit 6468973718
1 changed files with 21 additions and 3 deletions
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tools/spi-hdlc-adapter/spi-hdlc-adapter.c
+21 -3
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@@ -154,9 +154,10 @@ static int sIntGpioValueFd = -1;
static int sHdlcInputFd = -1;
static int sHdlcOutputFd = -1;
static int sSpiSpeed = 1000000; // in Hz (default: 1MHz)
static uint8_t sSpiMode = 0;
static int sSpiCsDelay = 20; // in microseconds
static int sSpiSpeed = 1000000; // in Hz (default: 1MHz)
static uint8_t sSpiMode = 0;
static int sSpiCsDelay = 20; // in microseconds
static int sSpiResetDelay = 0; // in milliseconds
static uint16_t sSpiRxPayloadSize;
static uint8_t sSpiRxFrameBuffer[MAX_FRAME_SIZE + SPI_RX_ALIGN_ALLOWANCE_MAX];
@@ -1410,6 +1411,7 @@ static void print_help(void)
" --spi-mode[=mode] ............ Specify the SPI mode to use (0-3).\n"
" --spi-speed[=hertz] .......... Specify the SPI speed in hertz.\n"
" --spi-cs-delay[=usec] ........ Specify the delay after C̅S̅ assertion, in µsec\n"
" --spi-reset-delay[=ms] ....... Specify the delay after R̅E̅S̅E̅T̅ assertion, in miliseconds\n"
" --spi-align-allowance[=n] .... Specify the maximum number of 0xFF bytes to\n"
" clip from start of MISO frame. Max value is 16.\n"
" --spi-small-packet=[n] ....... Specify the smallest packet we can receive\n"
@@ -1493,6 +1495,7 @@ int main(int argc, char *argv[])
ARG_RAW = 1006,
ARG_MTU = 1007,
ARG_SPI_SMALL_PACKET = 1008,
ARG_SPI_RESET_DELAY = 1009,
};
static struct option options[] = {
@@ -1510,6 +1513,7 @@ int main(int argc, char *argv[])
{"spi-cs-delay", required_argument, NULL, ARG_SPI_CS_DELAY},
{"spi-align-allowance", required_argument, NULL, ARG_SPI_ALIGN_ALLOWANCE},
{"spi-small-packet", required_argument, NULL, ARG_SPI_SMALL_PACKET},
{"spi-reset-delay", required_argument, NULL, ARG_SPI_RESET_DELAY},
{NULL, 0, NULL, 0},
};
@@ -1638,6 +1642,18 @@ int main(int argc, char *argv[])
syslog(LOG_NOTICE, "SPI CS Delay set to %d usec", sSpiCsDelay);
break;
case ARG_SPI_RESET_DELAY:
assert(optarg);
sSpiResetDelay = atoi(optarg);
if (sSpiResetDelay < 0)
{
syslog(LOG_ERR, "Negative value (%d) for --spi-reset-delay is invalid.", sSpiResetDelay);
exit(EXIT_FAILURE);
}
syslog(LOG_NOTICE, "SPI RESET Delay set to %d ms", sSpiResetDelay);
break;
case ARG_RAW:
sUseRawFrames = true;
syslog(LOG_NOTICE, "HDLC encoding/decoding disabled. Will use raw frames for input/output.");
@@ -1810,6 +1826,8 @@ int main(int argc, char *argv[])
trigger_reset();
usleep(sSpiResetDelay * USEC_PER_MSEC);
// ========================================================================
// MAIN LOOP