1 /* $NetBSD: uftdireg.h,v 1.6 2002/07/11 21:14:28 augustss Exp $ */
5 * Definitions for the FTDI USB Single Port Serial Converter -
6 * known as FTDI_SIO (Serial Input/Output application of the chipset)
8 * The device is based on the FTDI FT8U100AX chip. It has a DB25 on one side,
11 * Thanx to FTDI (http://www.ftdi.co.uk) for so kindly providing details
12 * of the protocol required to talk to the device and ongoing assistence
15 * Bill Ryder - bryder@sgi.com of Silicon Graphics, Inc. is the original
16 * author of this file.
18 /* Modified by Lennart Augustsson */
20 /* Vendor Request Interface */
21 #define FTDI_SIO_RESET 0 /* Reset the port */
22 #define FTDI_SIO_MODEM_CTRL 1 /* Set the modem control register */
23 #define FTDI_SIO_SET_FLOW_CTRL 2 /* Set flow control register */
24 #define FTDI_SIO_SET_BAUD_RATE 3 /* Set baud rate */
25 #define FTDI_SIO_SET_DATA 4 /* Set the data characteristics of the
27 #define FTDI_SIO_GET_STATUS 5 /* Retrieve current value of status
29 #define FTDI_SIO_SET_EVENT_CHAR 6 /* Set the event character */
30 #define FTDI_SIO_SET_ERROR_CHAR 7 /* Set the error character */
31 #define FTDI_SIO_SET_LATENCY 9 /* Set the latency timer */
32 #define FTDI_SIO_GET_LATENCY 10 /* Read the latency timer */
33 #define FTDI_SIO_SET_BITMODE 11 /* Set the bit bang I/O mode */
34 #define FTDI_SIO_GET_BITMODE 12 /* Read pin states from any mode */
35 #define FTDI_SIO_READ_EEPROM 144 /* Read eeprom word */
36 #define FTDI_SIO_WRITE_EEPROM 145 /* Write eeprom word */
37 #define FTDI_SIO_ERASE_EEPROM 146 /* Erase entire eeprom */
39 /* Port Identifier Table */
40 #define FTDI_PIT_DEFAULT 0 /* SIOA */
41 #define FTDI_PIT_SIOA 1 /* SIOA */
42 #define FTDI_PIT_SIOB 2 /* SIOB */
43 #define FTDI_PIT_PARALLEL 3 /* Parallel */
45 /* Values for driver_info */
46 #define UFTDI_JTAG_IFACE(i) (1 << i) /* Flag interface as jtag */
47 #define UFTDI_JTAG_IFACES_MAX 8 /* Allow up to 8 jtag intfs */
48 #define UFTDI_JTAG_CHECK_STRING 0xff /* Check product names table */
49 #define UFTDI_JTAG_MASK 0xff
52 * BmRequestType: 0100 0000B
53 * bRequest: FTDI_SIO_RESET
54 * wValue: Control Value
62 * The Reset SIO command has this effect:
64 * Sets flow control set to 'none'
66 * Event trigger = disabled
71 * baud and data format not reset
73 * The Purge RX and TX buffer commands affect nothing except the buffers
76 #define FTDI_SIO_RESET_SIO 0
77 #define FTDI_SIO_RESET_PURGE_RX 1
78 #define FTDI_SIO_RESET_PURGE_TX 2
81 * BmRequestType: 0100 0000B
82 * bRequest: FTDI_SIO_SET_BAUDRATE
83 * wValue: BaudRate low bits
84 * wIndex: Port and BaudRate high bits
88 /* FTDI_SIO_SET_BAUDRATE */
91 * BmRequestType: 0100 0000B
92 * bRequest: FTDI_SIO_SET_DATA
93 * wValue: Data characteristics (see below)
98 * Data characteristics
100 * B0..7 Number of data bits
114 /* FTDI_SIO_SET_DATA */
115 #define FTDI_SIO_SET_DATA_BITS(n) (n)
116 #define FTDI_SIO_SET_DATA_PARITY_NONE (0x0 << 8)
117 #define FTDI_SIO_SET_DATA_PARITY_ODD (0x1 << 8)
118 #define FTDI_SIO_SET_DATA_PARITY_EVEN (0x2 << 8)
119 #define FTDI_SIO_SET_DATA_PARITY_MARK (0x3 << 8)
120 #define FTDI_SIO_SET_DATA_PARITY_SPACE (0x4 << 8)
121 #define FTDI_SIO_SET_DATA_STOP_BITS_1 (0x0 << 11)
122 #define FTDI_SIO_SET_DATA_STOP_BITS_15 (0x1 << 11)
123 #define FTDI_SIO_SET_DATA_STOP_BITS_2 (0x2 << 11)
124 #define FTDI_SIO_SET_BREAK (0x1 << 14)
127 * BmRequestType: 0100 0000B
128 * bRequest: FTDI_SIO_MODEM_CTRL
129 * wValue: ControlValue (see below)
134 * NOTE: If the device is in RTS/CTS flow control, the RTS set by this
135 * command will be IGNORED without an error being returned
136 * Also - you can not set DTR and RTS with one control message
146 * B8 DTR state enable
149 * B9 RTS state enable
154 /* FTDI_SIO_MODEM_CTRL */
155 #define FTDI_SIO_SET_DTR_MASK 0x1
156 #define FTDI_SIO_SET_DTR_HIGH (1 | ( FTDI_SIO_SET_DTR_MASK << 8))
157 #define FTDI_SIO_SET_DTR_LOW (0 | ( FTDI_SIO_SET_DTR_MASK << 8))
158 #define FTDI_SIO_SET_RTS_MASK 0x2
159 #define FTDI_SIO_SET_RTS_HIGH (2 | ( FTDI_SIO_SET_RTS_MASK << 8))
160 #define FTDI_SIO_SET_RTS_LOW (0 | ( FTDI_SIO_SET_RTS_MASK << 8))
163 * BmRequestType: 0100 0000b
164 * bRequest: FTDI_SIO_SET_FLOW_CTRL
166 * wIndex: Protocol/Port - hIndex is protocol / lIndex is port
170 * hIndex protocol is:
171 * B0 Output handshaking using RTS/CTS
174 * B1 Output handshaking using DTR/DSR
177 * B2 Xon/Xoff handshaking
181 * A value of zero in the hIndex field disables handshaking
183 * If Xon/Xoff handshaking is specified, the hValue field should contain the
184 * XOFF character and the lValue field contains the XON character.
186 /* FTDI_SIO_SET_FLOW_CTRL */
187 #define FTDI_SIO_DISABLE_FLOW_CTRL 0x0
188 #define FTDI_SIO_RTS_CTS_HS 0x1
189 #define FTDI_SIO_DTR_DSR_HS 0x2
190 #define FTDI_SIO_XON_XOFF_HS 0x4
193 * BmRequestType: 0100 0000b
194 * bRequest: FTDI_SIO_SET_EVENT_CHAR
201 * B0..7 Event Character
202 * B8 Event Character Processing
207 * FTDI_SIO_SET_EVENT_CHAR
209 * Set the special event character for the specified communications port.
210 * If the device sees this character it will immediately return the
211 * data read so far - rather than wait 40ms or until 62 bytes are read
212 * which is what normally happens.
216 * BmRequestType: 0100 0000b
217 * bRequest: FTDI_SIO_SET_ERROR_CHAR
224 * B0..7 Error Character
225 * B8 Error Character Processing
229 * FTDI_SIO_SET_ERROR_CHAR
230 * Set the parity error replacement character for the specified communications
235 * BmRequestType: 1100 0000b
236 * bRequest: FTDI_SIO_GET_MODEM_STATUS
242 * One byte of data is returned
250 * B6 Ring Indicator (RI)
253 * B7 Receive Line Signal Detect (RLSD)
257 * FTDI_SIO_GET_MODEM_STATUS
258 * Retrieve the current value of the modem status register.
260 #define FTDI_SIO_CTS_MASK 0x10
261 #define FTDI_SIO_DSR_MASK 0x20
262 #define FTDI_SIO_RI_MASK 0x40
263 #define FTDI_SIO_RLSD_MASK 0x80
270 * The device reserves the first two bytes of data on this endpoint to contain
271 * the current values of the modem and line status registers. In the absence of
272 * data, the device generates a message consisting of these two status bytes
275 * Byte 0: Modem Status
276 * NOTE: 4 upper bits have same layout as the MSR register in a 16550
280 * B4 Clear to Send (CTS)
281 * B5 Data Set Ready (DSR)
282 * B6 Ring Indicator (RI)
283 * B7 Receive Line Signal Detect (RLSD)
285 * Byte 1: Line Status
286 * NOTE: same layout as the LSR register in a 16550
290 * B1 Overrun Error (OE)
291 * B2 Parity Error (PE)
292 * B3 Framing Error (FE)
293 * B4 Break Interrupt (BI)
294 * B5 Transmitter Holding Register (THRE)
295 * B6 Transmitter Empty (TEMT)
296 * B7 Error in RCVR FIFO
299 * This device reserves the first bytes of data on this endpoint contain the
300 * length and port identifier of the message. For the FTDI USB Serial converter
301 * the port identifier is always 1.
303 * Byte 0: Port & length
307 * B2..7 Length of message - (not including Byte 0)
309 #define FTDI_PORT_MASK 0x0f
310 #define FTDI_MSR_MASK 0xf0
311 #define FTDI_GET_MSR(p) (((p)[0]) & FTDI_MSR_MASK)
312 #define FTDI_GET_LSR(p) ((p)[1])
313 #define FTDI_LSR_MASK (~0x60) /* interesting bits */
314 #define FTDI_OUT_TAG(len, port) (((len) << 2) | (port))