error handling, rts, figured out modemstatus and some constants - volker milde
git-svn-id: svn://svn.code.sf.net/p/rdesktop/code/trunk/rdesktop@621 423420c4-83ab-492f-b58f-81f9feb106b5
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serial.c
83
serial.c
@ -53,6 +53,27 @@
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#define ODD_PARITY 1
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#define EVEN_PARITY 2
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#define SERIAL_PURGE_TXABORT 0x00000001
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#define SERIAL_PURGE_RXABORT 0x00000002
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#define SERIAL_PURGE_TXCLEAR 0x00000004
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#define SERIAL_PURGE_RXCLEAR 0x00000008
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/* SERIAL_WAIT_ON_MASK */
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#define SERIAL_EV_RXCHAR 0x0001 // Any Character received
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#define SERIAL_EV_RXFLAG 0x0002 // Received certain character
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#define SERIAL_EV_TXEMPTY 0x0004 // Transmitt Queue Empty
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#define SERIAL_EV_CTS 0x0008 // CTS changed state
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#define SERIAL_EV_DSR 0x0010 // DSR changed state
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#define SERIAL_EV_RLSD 0x0020 // RLSD changed state
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#define SERIAL_EV_BREAK 0x0040 // BREAK received
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#define SERIAL_EV_ERR 0x0080 // Line status error occurred
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#define SERIAL_EV_RING 0x0100 // Ring signal detected
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#define SERIAL_EV_PERR 0x0200 // Printer error occured
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#define SERIAL_EV_RX80FULL 0x0400 // Receive buffer is 80 percent full
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#define SERIAL_EV_EVENT1 0x0800 // Provider specific event 1
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#define SERIAL_EV_EVENT2 0x1000 // Provider specific event 2
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extern RDPDR_DEVICE g_rdpdr_device[];
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SERIAL_DEVICE *
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@ -186,6 +207,8 @@ get_termios(SERIAL_DEVICE * pser_inf, HANDLE serial_fd)
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break;
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}
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pser_inf->rts = (ptermios->c_cflag & CRTSCTS) ? 1 : 0;
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return True;
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}
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@ -286,13 +309,14 @@ set_termios(SERIAL_DEVICE * pser_inf, HANDLE serial_fd)
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cfsetispeed(pser_inf->ptermios, speed);
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cfsetospeed(pser_inf->ptermios, pser_inf->dtr ? speed : 0);
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ptermios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE);
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ptermios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE | CRTSCTS);
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switch (pser_inf->stop_bits)
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{
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case STOP_BITS_2:
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ptermios->c_cflag |= CSTOPB;
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break;
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}
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switch (pser_inf->parity)
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{
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case EVEN_PARITY:
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@ -302,6 +326,7 @@ set_termios(SERIAL_DEVICE * pser_inf, HANDLE serial_fd)
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ptermios->c_cflag |= PARENB | PARODD;
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break;
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}
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switch (pser_inf->word_length)
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{
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case 5:
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@ -318,6 +343,9 @@ set_termios(SERIAL_DEVICE * pser_inf, HANDLE serial_fd)
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break;
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}
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if (pser_inf->rts)
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ptermios->c_cflag |= CRTSCTS;
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tcsetattr(serial_fd, TCSANOW, ptermios);
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}
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@ -383,13 +411,18 @@ serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposi
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}
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if (!get_termios(pser_inf, serial_fd))
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{
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printf("INFO: SERIAL %s access denied\n", g_rdpdr_device[device_id].name);
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fflush(stdout);
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return STATUS_ACCESS_DENIED;
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}
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// Store handle for later use
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g_rdpdr_device[device_id].handle = serial_fd;
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/* some sane information */
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printf("INFO: SERIAL %s to %s\nINFO: speed %u baud, stop bits %u, parity %u, word length %u bits, dtr %u\n", g_rdpdr_device[device_id].name, g_rdpdr_device[device_id].local_path, pser_inf->baud_rate, pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length, pser_inf->dtr);
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printf("INFO: SERIAL %s to %s\nINFO: speed %u baud, stop bits %u, parity %u, word length %u bits, dtr %u, rts %u\n", g_rdpdr_device[device_id].name, g_rdpdr_device[device_id].local_path, pser_inf->baud_rate, pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length, pser_inf->dtr, pser_inf->rts);
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printf("INFO: use stty to change settings\n");
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/* ptermios->c_cflag = B115200 | CRTSCTS | CS8 | CLOCAL | CREAD;
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@ -412,7 +445,9 @@ serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposi
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static NTSTATUS
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serial_close(HANDLE handle)
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{
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g_rdpdr_device[get_device_index(handle)].handle = 0;
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int i = get_device_index(handle);
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if (i >= 0)
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g_rdpdr_device[i].handle = 0;
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close(handle);
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return STATUS_SUCCESS;
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}
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@ -459,6 +494,8 @@ serial_read(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 *
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*result = read(handle, data, length);
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//hexdump(data, *read);
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return STATUS_SUCCESS;
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}
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@ -472,6 +509,7 @@ serial_write(HANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 *
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static NTSTATUS
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serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out)
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{
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int flush_mask, purge_mask;
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uint32 result;
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uint8 immediate;
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SERIAL_DEVICE *pser_inf;
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@ -555,15 +593,27 @@ serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out)
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pser_inf->dtr = 0;
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set_termios(pser_inf, handle);
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break;
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case SERIAL_SET_RTS:
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pser_inf->rts = 1;
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set_termios(pser_inf, handle);
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break;
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case SERIAL_CLR_RTS:
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pser_inf->rts = 0;
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set_termios(pser_inf, handle);
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break;
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case SERIAL_GET_MODEMSTATUS:
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out_uint32_le(out, 0); /* Errors */
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break;
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case SERIAL_GET_COMMSTATUS:
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out_uint32_le(out, 0); /* Errors */
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out_uint32_le(out, 0); /* Hold reasons */
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out_uint32_le(out, 0); /* Amount in in queue */
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out_uint32_le(out, 0); /* Amount in out queue */
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out_uint8(out, 0); /* EofReceived */
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out_uint8(out, 0); /* WaitForImmediate */
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break;
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#if 0
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case SERIAL_WAIT_ON_MASK:
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/* XXX implement me */
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break;
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case SERIAL_SET_BREAK_ON:
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tcsendbreak(serial_fd, 0);
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break;
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case SERIAL_PURGE:
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printf("SERIAL_PURGE\n");
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in_uint32(in, purge_mask);
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if (purge_mask & 0x04)
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@ -577,17 +627,20 @@ serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out)
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if (purge_mask & 0x02)
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rdpdr_abort_io(handle, 3, STATUS_CANCELLED);
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break;
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case SERIAL_WAIT_ON_MASK:
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/* XXX implement me */
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out_uint32_le(out, pser_inf->wait_mask);
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break;
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case SERIAL_SET_BREAK_ON:
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tcsendbreak(serial_fd, 0);
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break;
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case SERIAL_RESET_DEVICE:
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case SERIAL_SET_BREAK_OFF:
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case SERIAL_SET_RTS:
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case SERIAL_CLR_RTS:
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case SERIAL_SET_XOFF:
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case SERIAL_SET_XON:
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/* ignore */
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break;
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#endif
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default:
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unimpl("SERIAL IOCTL %d\n", request);
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return STATUS_INVALID_PARAMETER;
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@ -604,6 +657,8 @@ serial_get_timeout(HANDLE handle, uint32 length, uint32 * timeout, uint32 * itv_
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SERIAL_DEVICE *pser_inf;
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index = get_device_index(handle);
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if (index < 0)
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return True;
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if (g_rdpdr_device[index].device_type != DEVICE_TYPE_SERIAL)
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{
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