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57 lines
1.2 KiB
57 lines
1.2 KiB
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#include <AP_HAL.h> |
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#if CONFIG_HAL_BOARD == HAL_BOARD_PX4 |
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#include <stdio.h> |
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#include <stdarg.h> |
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#include <unistd.h> |
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#include <stdlib.h> |
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#include <errno.h> |
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#include <apps/nsh.h> |
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#include <fcntl.h> |
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#include "UARTDriver.h" |
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extern const AP_HAL::HAL& hal; |
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#include "Util.h" |
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using namespace PX4; |
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extern bool _px4_thread_should_exit; |
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/* |
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start an instance of nsh |
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*/ |
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bool PX4Util::run_debug_shell(AP_HAL::BetterStream *stream) |
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{ |
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PX4UARTDriver *uart = (PX4UARTDriver *)stream; |
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int fd; |
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// trigger exit in the other threads. This stops use of the |
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// various driver handles, and especially the px4io handle, |
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// which otherwise would cause a crash if px4io is stopped in |
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// the shell |
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_px4_thread_should_exit = true; |
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// take control of stream fd |
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fd = uart->_get_fd(); |
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// mark it blocking (nsh expects a blocking fd) |
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unsigned v; |
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v = fcntl(fd, F_GETFL, 0); |
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fcntl(fd, F_SETFL, v & ~O_NONBLOCK); |
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// setup the UART on stdin/stdout/stderr |
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close(0); |
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close(1); |
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close(2); |
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dup2(fd, 0); |
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dup2(fd, 1); |
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dup2(fd, 2); |
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nsh_consolemain(0, NULL); |
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// this shouldn't happen |
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hal.console->printf("shell exited\n"); |
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return true; |
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} |
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#endif // CONFIG_HAL_BOARD == HAL_BOARD_PX4
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