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79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/*
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stm32flash - Open Source ST STM32 flash program for *nix
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Copyright (C) 2014 Antonio Borneo <borneo.antonio@gmail.com>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _H_PORT
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#define _H_PORT
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typedef enum {
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PORT_ERR_OK = 0,
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PORT_ERR_NODEV, /* No such device */
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PORT_ERR_TIMEDOUT, /* Operation timed out */
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PORT_ERR_BAUD, /* Unsupported baud rate */
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PORT_ERR_UNKNOWN,
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} port_err_t;
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/* flags */
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#define PORT_BYTE (1 << 0) /* byte (not frame) oriented */
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#define PORT_GVR_ETX (1 << 1) /* cmd GVR returns protection status */
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#define PORT_CMD_INIT (1 << 2) /* use INIT cmd to autodetect speed */
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#define PORT_RETRY (1 << 3) /* allowed read() retry after timeout */
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#define PORT_STRETCH_W (1 << 4) /* warning for no-stretching commands */
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#define PORT_NPAG_CSUM (1 << 5) /* checksum after number of pages to erase */
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/* all options and flags used to open and configure an interface */
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struct port_options {
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const char *device;
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serial_baud_t baudRate;
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const char *serial_mode;
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int bus_addr;
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int rx_frame_max;
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int tx_frame_max;
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};
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/*
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* Specify the length of reply for command GET
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* This is helpful for frame-oriented protocols, e.g. i2c, to avoid time
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* consuming try-fail-timeout-retry operation.
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* On byte-oriented protocols, i.e. UART, this information would be skipped
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* after read the first byte, so not needed.
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*/
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struct varlen_cmd {
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uint8_t version;
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uint8_t length;
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};
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struct port_interface {
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const char *name;
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unsigned flags;
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port_err_t (*open)(struct port_interface *port, struct port_options *ops);
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port_err_t (*close)(struct port_interface *port);
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port_err_t (*flush)(struct port_interface *port);
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port_err_t (*read)(struct port_interface *port, void *buf, size_t nbyte);
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port_err_t (*write)(struct port_interface *port, void *buf, size_t nbyte);
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port_err_t (*gpio)(struct port_interface *port, serial_gpio_t n, int level);
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const char *(*get_cfg_str)(struct port_interface *port);
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struct varlen_cmd *cmd_get_reply;
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void *private;
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};
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port_err_t port_open(struct port_options *ops, struct port_interface **outport);
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#endif
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