FreeCalypso > hg > fc-magnetite
view src/cs/services/atp/atp_uart.c @ 549:69e52afc01d5
configs/* except classic: rebuild tif_na7_db_{fl,ir} from source
The purpose of this change is to allow a TRACEMASK_IN_FFS=1 setting given
on the configure line to have effect; all configs except classic are
included because this feature setting is orthogonal to the choice of
G23M PS version and other config choices. (The classic config is an
exception because its very purpose is to preserve a reference config
with all of the original blobs.)
Note that even though we are switching these TIF libraries from blobs
to recompilation from source in all configs, our source for these libs
compiles into a perfect match to the original blobs in the current default
TRACEMASK_IN_FFS=0 configuration, hence there is no effective change
beyond the unfortunate small increase in compilation times.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sun, 18 Nov 2018 08:33:30 +0000 |
| parents | 945cf7f506b2 |
| children |
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/********************************************************************************/ /* */ /* File Name: atp_uart.c */ /* */ /* Purpose: This file contains the internal functions related to */ /* the ATP-UART interface and used to utilize a COM port */ /* under WIN32. */ /* */ /* Note: None. */ /* */ /* Revision History: */ /* 10/04/01 Pascal Pompei */ /* - Create. */ /* */ /* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved. */ /* */ /********************************************************************************/ #include "atp/atp_uart_i.h" /********************************************************************************/ /* */ /* Function Name: atp_uart_create_com_port */ /* */ /* Purpose: This function creates a COM port. */ /* */ /* Input Parameters: */ /* com_port - Contains the COM port number. */ /* baud_rate - Contains the baud rate (in bits per second). */ /* */ /* Output Parameters: None. */ /* */ /* Global Parameters: None. */ /* */ /* Note: None. */ /* */ /* Revision History: */ /* 02/05/01 David Lamy-Charrier */ /* - Create. */ /* */ /********************************************************************************/ T_ATP_UART_ERROR_CODES atp_uart_create_com_port (T_ATP_UART_COM_PORT com_port, T_ATP_UART_BAUD_RATE baud_rate) { /* Declare local variables. */ DCB control_settings; COMMTIMEOUTS timeouts = {MAXDWORD, \ MAXDWORD, \ 0x0000000A, \ 0x00000000, \ 0x00000000}; /******************* atp_uart_create_com_port function begins *******************/ /* First, update the name associated with the COM port. */ (gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_name[3] = (char) ('0' + com_port); /* Then, create the COM port with the following parameters: */ /* - Read/Write access, */ /* - The COM port can not be shared and can not be opened again until the */ /* handle is closed, */ /* - The handle can not be inherited, */ /* - The COM port is just opened (failed if does not exist), */ /* - No specific file attributes, */ /* - No template used. */ (gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle = CreateFile ((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_name, (GENERIC_READ | GENERIC_WRITE), 0x00000000, NULL, OPEN_EXISTING, 0x00000000, NULL); /* If any error occurred, then abort. */ if ((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle == INVALID_HANDLE_VALUE) { return (RV_INVALID_PARAMETER); } /* Otherwise, having created the COM port, get the default setting */ /* information. However, if any error occurred, then remove the COM port */ /* and abort. */ control_settings.DCBlength = sizeof (DCB); if (GetCommState ((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle, \ &control_settings) == FALSE) { (void) atp_uart_remove_com_port (); return (RV_INVALID_PARAMETER); } /* Define the baud rate, as well as the DCB structure settings. */ control_settings.BaudRate = baud_rate; control_settings.fOutxCtsFlow = TRUE; control_settings.fOutxDsrFlow = FALSE; control_settings.fDtrControl = DTR_CONTROL_ENABLE; control_settings.fDsrSensitivity = FALSE; control_settings.fRtsControl = RTS_CONTROL_HANDSHAKE; /* Then, configure the COM port according to the specifications of the DCB */ /* structure, set the timeout parameters for all read and write operations */ /* on the COM port and discard all characters from the output and input */ /* buffers. However, if any error occurred, then remove the COM port and */ /* abort. */ if ((SetCommState ((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle, \ &control_settings) == FALSE) || \ (SetCommTimeouts ((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle, \ &timeouts) == FALSE) || \ (PurgeComm ((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle, \ (PURGE_RXCLEAR | PURGE_TXCLEAR | PURGE_RXABORT | PURGE_TXABORT)) == FALSE)) { (void) atp_uart_remove_com_port (); return (RV_INTERNAL_ERR); } return (RV_OK); } /****************** End of atp_uart_create_com_port function ******************/ /********************************************************************************/ /* */ /* Function Name: atp_uart_write_com_port */ /* */ /* Purpose: This function writes data on the COM port. */ /* */ /* Input Parameters: */ /* data_buffer_p - Pointer on the data to be written. */ /* data_size - Contains the total byte count to be written. */ /* */ /* Output Parameters: None. */ /* */ /* Global Parameters: None. */ /* */ /* Note: Buffer de-allocation is outside the scope of this */ /* function. */ /* */ /* Revision History: */ /* 02/05/01 David Lamy-Charrier */ /* - Create. */ /* */ /********************************************************************************/ T_ATP_UART_ERROR_CODES atp_uart_write_com_port (UINT8 *data_buffer_p, UINT32 data_size) { /* Declare a local variable. */ UINT32 data_size_sent = 0x00000000; /******************** atp_uart_write_com_port function begins *******************/ /* Attempt writing data. If any error occurred, then abort. */ if (((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle == INVALID_HANDLE_VALUE) || \ (WriteFile ((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle, \ data_buffer_p, \ data_size, \ (unsigned long *) (&data_size_sent), \ NULL) == FALSE) || \ (data_size_sent != data_size)) { return (RV_INVALID_PARAMETER); } return (RV_OK); } /******************* End of atp_uart_write_com_port function ******************/ /********************************************************************************/ /* */ /* Function Name: atp_uart_read_com_port */ /* */ /* Purpose: This function reads data from the COM port. */ /* */ /* Input Parameters: */ /* data_buffer_p - Pointer on the destination buffer. */ /* data_size_p - Pointer on the total byte count to be read. */ /* */ /* Output Parameters: None. */ /* data_size_p - Contains the total byte count read. */ /* */ /* Global Parameters: None. */ /* */ /* Notes: Buffer allocation is outside the scope of this */ /* function Moreover, this function returns the total */ /* byte count read, up to the expected value (from */ /* 0x00000000 to 'data_size_p'). */ /* */ /* Revision History: */ /* 02/05/01 David Lamy-Charrier */ /* - Create. */ /* */ /********************************************************************************/ T_ATP_UART_ERROR_CODES atp_uart_read_com_port (UINT8 *data_buffer_p, UINT32 *data_size_p) { /* Declare a local variable. */ UINT32 data_size_read = 0x00000000; UINT32 total_data_size_read = 0x00000000; /******************** atp_uart_read_com_port function begins ********************/ /* First, check whether the COM port is in use and whether the total byte */ /* count to be read is valid. Otherwise, abort. */ if (((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle == INVALID_HANDLE_VALUE) || \ (data_size_p == NULL)) { return (RV_INVALID_PARAMETER); } /* Then, attempt reading data, up to the expected value. However, abort if */ /* no data available from the COM port or if any error occurred. */ do { if (ReadFile ((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle, \ (data_buffer_p + total_data_size_read), \ (*data_size_p - total_data_size_read), \ (unsigned long *) (&data_size_read), \ NULL) == FALSE) { return (RV_INVALID_PARAMETER); } total_data_size_read += data_size_read; } while (data_size_read != 0x00000000); /* Update the total byte count read. */ *data_size_p = total_data_size_read; return(RV_OK); } /******************* End of atp_uart_read_com_port function *******************/ /********************************************************************************/ /* */ /* Function Name: atp_uart_remove_com_port */ /* */ /* Purpose: This function removes the COM port. */ /* */ /* Input Parameters: None. */ /* */ /* Output Parameters: None. */ /* */ /* Global Parameters: None. */ /* */ /* Note: None. */ /* */ /* Revision History: */ /* 02/05/01 David Lamy-Charrier */ /* - Create. */ /* */ /********************************************************************************/ T_ATP_UART_ERROR_CODES atp_uart_remove_com_port (void) { /******************* atp_uart_remove_com_port function begins *******************/ /* Remove the COM port. If any error occurred, then abort. */ if (((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle == INVALID_HANDLE_VALUE) || \ (DeleteFile ((gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_name) == FALSE)) { return (RV_INVALID_PARAMETER); } /* Set the default handle assigned to the COM port. */ (gbl_atp_uart_ctrl_blk_p->conn_ctrl_blk).com_port_handle = INVALID_HANDLE_VALUE; return (RV_OK); } /****************** End of atp_uart_remove_com_port function ******************/