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linux/drivers/usb/serial/whiteheat.h
Mauro Carvalho Chehab ecefae6db0 docs: usb: rename files to .rst and add them to drivers-api 
While there are a mix of things here, most of the stuff
were written from Kernel developer's PoV. So, add them to
the driver-api book.

A follow up for this patch would be to move documents from
there that are specific to sysadmins, adding them to the
admin-guide.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Johan Hovold <johan@kernel.org>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-20 14:28:36 +02:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* USB ConnectTech WhiteHEAT driver
*
* Copyright (C) 2002
* Connect Tech Inc.
*
* Copyright (C) 1999, 2000
* Greg Kroah-Hartman (greg@kroah.com)
*
* See Documentation/usb/usb-serial.rst for more information on using this
* driver
*
*/
#ifndef __LINUX_USB_SERIAL_WHITEHEAT_H
#define __LINUX_USB_SERIAL_WHITEHEAT_H
/* WhiteHEAT commands */
#define WHITEHEAT_OPEN 1 /* open the port */
#define WHITEHEAT_CLOSE 2 /* close the port */
#define WHITEHEAT_SETUP_PORT 3 /* change port settings */
#define WHITEHEAT_SET_RTS 4 /* turn RTS on or off */
#define WHITEHEAT_SET_DTR 5 /* turn DTR on or off */
#define WHITEHEAT_SET_BREAK 6 /* turn BREAK on or off */
#define WHITEHEAT_DUMP 7 /* dump memory */
#define WHITEHEAT_STATUS 8 /* get status */
#define WHITEHEAT_PURGE 9 /* clear the UART fifos */
#define WHITEHEAT_GET_DTR_RTS 10 /* get the state of DTR and RTS
for a port */
#define WHITEHEAT_GET_HW_INFO 11 /* get EEPROM info and
hardware ID */
#define WHITEHEAT_REPORT_TX_DONE 12 /* get the next TX done */
#define WHITEHEAT_EVENT 13 /* unsolicited status events */
#define WHITEHEAT_ECHO 14 /* send data to the indicated
IN endpoint */
#define WHITEHEAT_DO_TEST 15 /* perform specified test */
#define WHITEHEAT_CMD_COMPLETE 16 /* reply for some commands */
#define WHITEHEAT_CMD_FAILURE 17 /* reply for failed commands */
/*
* Commands to the firmware
*/
/*
* WHITEHEAT_OPEN
* WHITEHEAT_CLOSE
* WHITEHEAT_STATUS
* WHITEHEAT_GET_DTR_RTS
* WHITEHEAT_REPORT_TX_DONE
*/
struct whiteheat_simple {
__u8 port; /* port number (1 to N) */
};
/*
* WHITEHEAT_SETUP_PORT
*/
#define WHITEHEAT_PAR_NONE 'n' /* no parity */
#define WHITEHEAT_PAR_EVEN 'e' /* even parity */
#define WHITEHEAT_PAR_ODD 'o' /* odd parity */
#define WHITEHEAT_PAR_SPACE '0' /* space (force 0) parity */
#define WHITEHEAT_PAR_MARK '1' /* mark (force 1) parity */
#define WHITEHEAT_SFLOW_NONE 'n' /* no software flow control */
#define WHITEHEAT_SFLOW_RX 'r' /* XOFF/ON is sent when RX
fills/empties */
#define WHITEHEAT_SFLOW_TX 't' /* when received XOFF/ON will
stop/start TX */
#define WHITEHEAT_SFLOW_RXTX 'b' /* both SFLOW_RX and SFLOW_TX */
#define WHITEHEAT_HFLOW_NONE 0x00 /* no hardware flow control */
#define WHITEHEAT_HFLOW_RTS_TOGGLE 0x01 /* RTS is on during transmit,
off otherwise */
#define WHITEHEAT_HFLOW_DTR 0x02 /* DTR is off/on when RX
fills/empties */
#define WHITEHEAT_HFLOW_CTS 0x08 /* when received CTS off/on
will stop/start TX */
#define WHITEHEAT_HFLOW_DSR 0x10 /* when received DSR off/on
will stop/start TX */
#define WHITEHEAT_HFLOW_RTS 0x80 /* RTS is off/on when RX
fills/empties */
struct whiteheat_port_settings {
__u8 port; /* port number (1 to N) */
__u32 baud; /* any value 7 - 460800, firmware calculates
best fit; arrives little endian */
__u8 bits; /* 5, 6, 7, or 8 */
__u8 stop; /* 1 or 2, default 1 (2 = 1.5 if bits = 5) */
__u8 parity; /* see WHITEHEAT_PAR_* above */
__u8 sflow; /* see WHITEHEAT_SFLOW_* above */
__u8 xoff; /* XOFF byte value */
__u8 xon; /* XON byte value */
__u8 hflow; /* see WHITEHEAT_HFLOW_* above */
__u8 lloop; /* 0/1 turns local loopback mode off/on */
} __attribute__ ((packed));
/*
* WHITEHEAT_SET_RTS
* WHITEHEAT_SET_DTR
* WHITEHEAT_SET_BREAK
*/
#define WHITEHEAT_RTS_OFF 0x00
#define WHITEHEAT_RTS_ON 0x01
#define WHITEHEAT_DTR_OFF 0x00
#define WHITEHEAT_DTR_ON 0x01
#define WHITEHEAT_BREAK_OFF 0x00
#define WHITEHEAT_BREAK_ON 0x01
struct whiteheat_set_rdb {
__u8 port; /* port number (1 to N) */
__u8 state; /* 0/1 turns signal off/on */
};
/*
* WHITEHEAT_DUMP
*/
#define WHITEHEAT_DUMP_MEM_DATA 'd' /* data */
#define WHITEHEAT_DUMP_MEM_IDATA 'i' /* idata */
#define WHITEHEAT_DUMP_MEM_BDATA 'b' /* bdata */
#define WHITEHEAT_DUMP_MEM_XDATA 'x' /* xdata */
/*
* Allowable address ranges (firmware checks address):
* Type DATA: 0x00 - 0xff
* Type IDATA: 0x80 - 0xff
* Type BDATA: 0x20 - 0x2f
* Type XDATA: 0x0000 - 0xffff
*
* B/I/DATA all read the local memory space
* XDATA reads the external memory space
* BDATA returns bits as bytes
*
* NOTE: 0x80 - 0xff (local space) are the Special Function Registers
* of the 8051, and some have on-read side-effects.
*/
struct whiteheat_dump {
__u8 mem_type; /* see WHITEHEAT_DUMP_* above */
__u16 addr; /* address, see restrictions above */
__u16 length; /* number of bytes to dump, max 63 bytes */
};
/*
* WHITEHEAT_PURGE
*/
#define WHITEHEAT_PURGE_RX 0x01 /* purge rx fifos */
#define WHITEHEAT_PURGE_TX 0x02 /* purge tx fifos */
struct whiteheat_purge {
__u8 port; /* port number (1 to N) */
__u8 what; /* bit pattern of what to purge */
};
/*
* WHITEHEAT_ECHO
*/
struct whiteheat_echo {
__u8 port; /* port number (1 to N) */
__u8 length; /* length of message to echo, max 61 bytes */
__u8 echo_data[61]; /* data to echo */
};
/*
* WHITEHEAT_DO_TEST
*/
#define WHITEHEAT_TEST_UART_RW 0x01 /* read/write uart registers */
#define WHITEHEAT_TEST_UART_INTR 0x02 /* uart interrupt */
#define WHITEHEAT_TEST_SETUP_CONT 0x03 /* setup for
PORT_CONT/PORT_DISCONT */
#define WHITEHEAT_TEST_PORT_CONT 0x04 /* port connect */
#define WHITEHEAT_TEST_PORT_DISCONT 0x05 /* port disconnect */
#define WHITEHEAT_TEST_UART_CLK_START 0x06 /* uart clock test start */
#define WHITEHEAT_TEST_UART_CLK_STOP 0x07 /* uart clock test stop */
#define WHITEHEAT_TEST_MODEM_FT 0x08 /* modem signals, requires a
loopback cable/connector */
#define WHITEHEAT_TEST_ERASE_EEPROM 0x09 /* erase eeprom */
#define WHITEHEAT_TEST_READ_EEPROM 0x0a /* read eeprom */
#define WHITEHEAT_TEST_PROGRAM_EEPROM 0x0b /* program eeprom */
struct whiteheat_test {
__u8 port; /* port number (1 to n) */
__u8 test; /* see WHITEHEAT_TEST_* above*/
__u8 info[32]; /* additional info */
};
/*
* Replies from the firmware
*/
/*
* WHITEHEAT_STATUS
*/
#define WHITEHEAT_EVENT_MODEM 0x01 /* modem field is valid */
#define WHITEHEAT_EVENT_ERROR 0x02 /* error field is valid */
#define WHITEHEAT_EVENT_FLOW 0x04 /* flow field is valid */
#define WHITEHEAT_EVENT_CONNECT 0x08 /* connect field is valid */
#define WHITEHEAT_FLOW_NONE 0x00 /* no flow control active */
#define WHITEHEAT_FLOW_HARD_OUT 0x01 /* TX is stopped by CTS
(waiting for CTS to go on) */
#define WHITEHEAT_FLOW_HARD_IN 0x02 /* remote TX is stopped
by RTS */
#define WHITEHEAT_FLOW_SOFT_OUT 0x04 /* TX is stopped by XOFF
received (waiting for XON) */
#define WHITEHEAT_FLOW_SOFT_IN 0x08 /* remote TX is stopped by XOFF
transmitted */
#define WHITEHEAT_FLOW_TX_DONE 0x80 /* TX has completed */
struct whiteheat_status_info {
__u8 port; /* port number (1 to N) */
__u8 event; /* indicates what the current event is,
see WHITEHEAT_EVENT_* above */
__u8 modem; /* modem signal status (copy of uart's
MSR register) */
__u8 error; /* line status (copy of uart's LSR register) */
__u8 flow; /* flow control state, see WHITEHEAT_FLOW_*
above */
__u8 connect; /* 0 means not connected, non-zero means
connected */
};
/*
* WHITEHEAT_GET_DTR_RTS
*/
struct whiteheat_dr_info {
__u8 mcr; /* copy of uart's MCR register */
};
/*
* WHITEHEAT_GET_HW_INFO
*/
struct whiteheat_hw_info {
__u8 hw_id; /* hardware id number, WhiteHEAT = 0 */
__u8 sw_major_rev; /* major version number */
__u8 sw_minor_rev; /* minor version number */
struct whiteheat_hw_eeprom_info {
__u8 b0; /* B0 */
__u8 vendor_id_low; /* vendor id (low byte) */
__u8 vendor_id_high; /* vendor id (high byte) */
__u8 product_id_low; /* product id (low byte) */
__u8 product_id_high; /* product id (high byte) */
__u8 device_id_low; /* device id (low byte) */
__u8 device_id_high; /* device id (high byte) */
__u8 not_used_1;
__u8 serial_number_0; /* serial number (low byte) */
__u8 serial_number_1; /* serial number */
__u8 serial_number_2; /* serial number */
__u8 serial_number_3; /* serial number (high byte) */
__u8 not_used_2;
__u8 not_used_3;
__u8 checksum_low; /* checksum (low byte) */
__u8 checksum_high; /* checksum (high byte */
} hw_eeprom_info; /* EEPROM contents */
};
/*
* WHITEHEAT_EVENT
*/
struct whiteheat_event_info {
__u8 port; /* port number (1 to N) */
__u8 event; /* see whiteheat_status_info.event */
__u8 info; /* see whiteheat_status_info.modem, .error,
.flow, .connect */
};
/*
* WHITEHEAT_DO_TEST
*/
#define WHITEHEAT_TEST_FAIL 0x00 /* test failed */
#define WHITEHEAT_TEST_UNKNOWN 0x01 /* unknown test requested */
#define WHITEHEAT_TEST_PASS 0xff /* test passed */
struct whiteheat_test_info {
__u8 port; /* port number (1 to N) */
__u8 test; /* indicates which test this is a response for,
see WHITEHEAT_DO_TEST above */
__u8 status; /* see WHITEHEAT_TEST_* above */
__u8 results[32]; /* test-dependent results */
};
#endif
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