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 port */
26 #define FTDI_SIO_GET_STATUS 5 /* Retrieve current value of status reg */
27 #define FTDI_SIO_SET_EVENT_CHAR 6 /* Set the event character */
28 #define FTDI_SIO_SET_ERROR_CHAR 7 /* Set the error character */
30 /* Port Identifier Table */
31 #define FTDI_PIT_DEFAULT 0 /* SIOA */
32 #define FTDI_PIT_SIOA 1 /* SIOA */
33 #define FTDI_PIT_SIOB 2 /* SIOB */
34 #define FTDI_PIT_PARALLEL 3 /* Parallel */
42 * BmRequestType: 0100 0000B
43 * bRequest: FTDI_SIO_RESET
44 * wValue: Control Value
52 * The Reset SIO command has this effect:
54 * Sets flow control set to 'none'
56 * Event trigger = disabled
61 * baud and data format not reset
63 * The Purge RX and TX buffer commands affect nothing except the buffers
67 #define FTDI_SIO_RESET_SIO 0
68 #define FTDI_SIO_RESET_PURGE_RX 1
69 #define FTDI_SIO_RESET_PURGE_TX 2
73 * BmRequestType: 0100 0000B
74 * bRequest: FTDI_SIO_SET_BAUDRATE
75 * wValue: BaudRate value - see below
80 /* FTDI_SIO_SET_BAUDRATE */
95 ftdi_8u232am_b300 = 0x2710,
96 ftdi_8u232am_b600 = 0x1388,
97 ftdi_8u232am_b1200 = 0x09c4,
98 ftdi_8u232am_b2400 = 0x04e2,
99 ftdi_8u232am_b4800 = 0x0271,
100 ftdi_8u232am_b9600 = 0x4138,
101 ftdi_8u232am_b19200 = 0x809c,
102 ftdi_8u232am_b38400 = 0xc04e,
103 ftdi_8u232am_b57600 = 0x0034,
104 ftdi_8u232am_b115200 = 0x001a,
105 ftdi_8u232am_b230400 = 0x000d,
106 ftdi_8u232am_b460800 = 0x4006,
107 ftdi_8u232am_b921600 = 0x8003,
108 ftdi_8u232am_b2000000 = 0x0001, /* special case for 2M baud */
109 ftdi_8u232am_b3000000 = 0x0000, /* special case for 3M baud */
113 * BmRequestType: 0100 0000B
114 * bRequest: FTDI_SIO_SET_DATA
115 * wValue: Data characteristics (see below)
120 * Data characteristics
122 * B0..7 Number of data bits
136 /* FTDI_SIO_SET_DATA */
137 #define FTDI_SIO_SET_DATA_BITS(n) (n)
138 #define FTDI_SIO_SET_DATA_PARITY_NONE (0x0 << 8)
139 #define FTDI_SIO_SET_DATA_PARITY_ODD (0x1 << 8)
140 #define FTDI_SIO_SET_DATA_PARITY_EVEN (0x2 << 8)
141 #define FTDI_SIO_SET_DATA_PARITY_MARK (0x3 << 8)
142 #define FTDI_SIO_SET_DATA_PARITY_SPACE (0x4 << 8)
143 #define FTDI_SIO_SET_DATA_STOP_BITS_1 (0x0 << 11)
144 #define FTDI_SIO_SET_DATA_STOP_BITS_15 (0x1 << 11)
145 #define FTDI_SIO_SET_DATA_STOP_BITS_2 (0x2 << 11)
146 #define FTDI_SIO_SET_BREAK (0x1 << 14)
150 * BmRequestType: 0100 0000B
151 * bRequest: FTDI_SIO_MODEM_CTRL
152 * wValue: ControlValue (see below)
157 * NOTE: If the device is in RTS/CTS flow control, the RTS set by this
158 * command will be IGNORED without an error being returned
159 * Also - you can not set DTR and RTS with one control message
169 * B8 DTR state enable
172 * B9 RTS state enable
177 /* FTDI_SIO_MODEM_CTRL */
178 #define FTDI_SIO_SET_DTR_MASK 0x1
179 #define FTDI_SIO_SET_DTR_HIGH (1 | ( FTDI_SIO_SET_DTR_MASK << 8))
180 #define FTDI_SIO_SET_DTR_LOW (0 | ( FTDI_SIO_SET_DTR_MASK << 8))
181 #define FTDI_SIO_SET_RTS_MASK 0x2
182 #define FTDI_SIO_SET_RTS_HIGH (2 | ( FTDI_SIO_SET_RTS_MASK << 8))
183 #define FTDI_SIO_SET_RTS_LOW (0 | ( FTDI_SIO_SET_RTS_MASK << 8))
187 * BmRequestType: 0100 0000b
188 * bRequest: FTDI_SIO_SET_FLOW_CTRL
190 * wIndex: Protocol/Port - hIndex is protocl / lIndex is port
194 * hIndex protocol is:
195 * B0 Output handshaking using RTS/CTS
198 * B1 Output handshaking using DTR/DSR
201 * B2 Xon/Xoff handshaking
205 * A value of zero in the hIndex field disables handshaking
207 * If Xon/Xoff handshaking is specified, the hValue field should contain the
208 * XOFF character and the lValue field contains the XON character.
210 /* FTDI_SIO_SET_FLOW_CTRL */
211 #define FTDI_SIO_DISABLE_FLOW_CTRL 0x0
212 #define FTDI_SIO_RTS_CTS_HS 0x1
213 #define FTDI_SIO_DTR_DSR_HS 0x2
214 #define FTDI_SIO_XON_XOFF_HS 0x4
218 * BmRequestType: 0100 0000b
219 * bRequest: FTDI_SIO_SET_EVENT_CHAR
226 * B0..7 Event Character
227 * B8 Event Character Processing
232 * FTDI_SIO_SET_EVENT_CHAR
234 * Set the special event character for the specified communications port.
235 * If the device sees this character it will immediately return the
236 * data read so far - rather than wait 40ms or until 62 bytes are read
237 * which is what normally happens.
243 * BmRequestType: 0100 0000b
244 * bRequest: FTDI_SIO_SET_ERROR_CHAR
251 * B0..7 Error Character
252 * B8 Error Character Processing
258 * FTDI_SIO_SET_ERROR_CHAR
259 * Set the parity error replacement character for the specified communications
265 * BmRequestType: 1100 0000b
266 * bRequest: FTDI_SIO_GET_MODEM_STATUS
272 * One byte of data is returned
280 * B6 Ring Indicator (RI)
283 * B7 Receive Line Signal Detect (RLSD)
287 * FTDI_SIO_GET_MODEM_STATUS
288 * Retrieve the current value of the modem status register.
290 #define FTDI_SIO_CTS_MASK 0x10
291 #define FTDI_SIO_DSR_MASK 0x20
292 #define FTDI_SIO_RI_MASK 0x40
293 #define FTDI_SIO_RLSD_MASK 0x80
303 * The device reserves the first two bytes of data on this endpoint to contain
304 * the current values of the modem and line status registers. In the absence of
305 * data, the device generates a message consisting of these two status bytes
308 * Byte 0: Modem Status
309 * NOTE: 4 upper bits have same layout as the MSR register in a 16550
313 * B4 Clear to Send (CTS)
314 * B5 Data Set Ready (DSR)
315 * B6 Ring Indicator (RI)
316 * B7 Receive Line Signal Detect (RLSD)
318 * Byte 1: Line Status
319 * NOTE: same layout as the LSR register in a 16550
323 * B1 Overrun Error (OE)
324 * B2 Parity Error (PE)
325 * B3 Framing Error (FE)
326 * B4 Break Interrupt (BI)
327 * B5 Transmitter Holding Register (THRE)
328 * B6 Transmitter Empty (TEMT)
329 * B7 Error in RCVR FIFO
334 * This device reserves the first bytes of data on this endpoint contain the
335 * length and port identifier of the message. For the FTDI USB Serial converter
336 * the port identifier is always 1.
338 * Byte 0: Port & length
342 * B2..7 Length of message - (not including Byte 0)
345 #define FTDI_PORT_MASK 0x0f
346 #define FTDI_MSR_MASK 0xf0
347 #define FTDI_GET_MSR(p) (((p)[0]) & FTDI_MSR_MASK)
348 #define FTDI_GET_LSR(p) ((p)[1])
349 #define FTDI_LSR_MASK (~0x60) /* interesting bits */
350 #define FTDI_OUT_TAG(len, port) (((len) << 2) | (port))