diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/usb/serial/io_16654.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/usb/serial/io_16654.h')
-rw-r--r-- | drivers/usb/serial/io_16654.h | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/drivers/usb/serial/io_16654.h b/drivers/usb/serial/io_16654.h new file mode 100644 index 000000000000..a53abc9530ff --- /dev/null +++ b/drivers/usb/serial/io_16654.h | |||
@@ -0,0 +1,195 @@ | |||
1 | /************************************************************************ | ||
2 | * | ||
3 | * 16654.H Definitions for 16C654 UART used on EdgePorts | ||
4 | * | ||
5 | * Copyright (C) 1998 Inside Out Networks, Inc. | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | ************************************************************************/ | ||
12 | |||
13 | #if !defined(_16654_H) | ||
14 | #define _16654_H | ||
15 | |||
16 | /************************************************************************ | ||
17 | * | ||
18 | * D e f i n e s / T y p e d e f s | ||
19 | * | ||
20 | ************************************************************************/ | ||
21 | |||
22 | // | ||
23 | // UART register numbers | ||
24 | // Numbers 0-7 are passed to the Edgeport directly. Numbers 8 and | ||
25 | // above are used internally to indicate that we must enable access | ||
26 | // to them via LCR bit 0x80 or LCR = 0xBF. | ||
27 | // The register number sent to the Edgeport is then (x & 0x7). | ||
28 | // | ||
29 | // Driver must not access registers that affect operation of the | ||
30 | // the EdgePort firmware -- that includes THR, RHR, IER, FCR. | ||
31 | |||
32 | |||
33 | #define THR 0 // ! Transmit Holding Register (Write) | ||
34 | #define RDR 0 // ! Receive Holding Register (Read) | ||
35 | #define IER 1 // ! Interrupt Enable Register | ||
36 | #define FCR 2 // ! Fifo Control Register (Write) | ||
37 | #define ISR 2 // Interrupt Status Register (Read) | ||
38 | #define LCR 3 // Line Control Register | ||
39 | #define MCR 4 // Modem Control Register | ||
40 | #define LSR 5 // Line Status Register | ||
41 | #define MSR 6 // Modem Status Register | ||
42 | #define SPR 7 // ScratchPad Register | ||
43 | #define DLL 8 // Bank2[ 0 ] Divisor Latch LSB | ||
44 | #define DLM 9 // Bank2[ 1 ] Divisor Latch MSB | ||
45 | #define EFR 10 // Bank2[ 2 ] Extended Function Register | ||
46 | //efine unused 11 // Bank2[ 3 ] | ||
47 | #define XON1 12 // Bank2[ 4 ] Xon-1 | ||
48 | #define XON2 13 // Bank2[ 5 ] Xon-2 | ||
49 | #define XOFF1 14 // Bank2[ 6 ] Xoff-1 | ||
50 | #define XOFF2 15 // Bank2[ 7 ] Xoff-2 | ||
51 | |||
52 | #define NUM_16654_REGS 16 | ||
53 | |||
54 | #define IS_REG_2ND_BANK(x) ((x) >= 8) | ||
55 | |||
56 | // | ||
57 | // Bit definitions for each register | ||
58 | // | ||
59 | |||
60 | #define IER_RX 0x01 // Enable receive interrupt | ||
61 | #define IER_TX 0x02 // Enable transmit interrupt | ||
62 | #define IER_RXS 0x04 // Enable receive status interrupt | ||
63 | #define IER_MDM 0x08 // Enable modem status interrupt | ||
64 | #define IER_SLEEP 0x10 // Enable sleep mode | ||
65 | #define IER_XOFF 0x20 // Enable s/w flow control (XOFF) interrupt | ||
66 | #define IER_RTS 0x40 // Enable RTS interrupt | ||
67 | #define IER_CTS 0x80 // Enable CTS interrupt | ||
68 | #define IER_ENABLE_ALL 0xFF // Enable all ints | ||
69 | |||
70 | |||
71 | #define FCR_FIFO_EN 0x01 // Enable FIFOs | ||
72 | #define FCR_RXCLR 0x02 // Reset Rx FIFO | ||
73 | #define FCR_TXCLR 0x04 // Reset Tx FIFO | ||
74 | #define FCR_DMA_BLK 0x08 // Enable DMA block mode | ||
75 | #define FCR_TX_LEVEL_MASK 0x30 // Mask for Tx FIFO Level | ||
76 | #define FCR_TX_LEVEL_8 0x00 // Tx FIFO Level = 8 bytes | ||
77 | #define FCR_TX_LEVEL_16 0x10 // Tx FIFO Level = 16 bytes | ||
78 | #define FCR_TX_LEVEL_32 0x20 // Tx FIFO Level = 32 bytes | ||
79 | #define FCR_TX_LEVEL_56 0x30 // Tx FIFO Level = 56 bytes | ||
80 | #define FCR_RX_LEVEL_MASK 0xC0 // Mask for Rx FIFO Level | ||
81 | #define FCR_RX_LEVEL_8 0x00 // Rx FIFO Level = 8 bytes | ||
82 | #define FCR_RX_LEVEL_16 0x40 // Rx FIFO Level = 16 bytes | ||
83 | #define FCR_RX_LEVEL_56 0x80 // Rx FIFO Level = 56 bytes | ||
84 | #define FCR_RX_LEVEL_60 0xC0 // Rx FIFO Level = 60 bytes | ||
85 | |||
86 | |||
87 | #define ISR_INT_MDM_STATUS 0x00 // Modem status int pending | ||
88 | #define ISR_INT_NONE 0x01 // No interrupt pending | ||
89 | #define ISR_INT_TXRDY 0x02 // Tx ready int pending | ||
90 | #define ISR_INT_RXRDY 0x04 // Rx ready int pending | ||
91 | #define ISR_INT_LINE_STATUS 0x06 // Line status int pending | ||
92 | #define ISR_INT_RX_TIMEOUT 0x0C // Rx timeout int pending | ||
93 | #define ISR_INT_RX_XOFF 0x10 // Rx Xoff int pending | ||
94 | #define ISR_INT_RTS_CTS 0x20 // RTS/CTS change int pending | ||
95 | #define ISR_FIFO_ENABLED 0xC0 // Bits set if FIFOs enabled | ||
96 | #define ISR_INT_BITS_MASK 0x3E // Mask to isolate valid int causes | ||
97 | |||
98 | |||
99 | #define LCR_BITS_5 0x00 // 5 bits/char | ||
100 | #define LCR_BITS_6 0x01 // 6 bits/char | ||
101 | #define LCR_BITS_7 0x02 // 7 bits/char | ||
102 | #define LCR_BITS_8 0x03 // 8 bits/char | ||
103 | #define LCR_BITS_MASK 0x03 // Mask for bits/char field | ||
104 | |||
105 | #define LCR_STOP_1 0x00 // 1 stop bit | ||
106 | #define LCR_STOP_1_5 0x04 // 1.5 stop bits (if 5 bits/char) | ||
107 | #define LCR_STOP_2 0x04 // 2 stop bits (if 6-8 bits/char) | ||
108 | #define LCR_STOP_MASK 0x04 // Mask for stop bits field | ||
109 | |||
110 | #define LCR_PAR_NONE 0x00 // No parity | ||
111 | #define LCR_PAR_ODD 0x08 // Odd parity | ||
112 | #define LCR_PAR_EVEN 0x18 // Even parity | ||
113 | #define LCR_PAR_MARK 0x28 // Force parity bit to 1 | ||
114 | #define LCR_PAR_SPACE 0x38 // Force parity bit to 0 | ||
115 | #define LCR_PAR_MASK 0x38 // Mask for parity field | ||
116 | |||
117 | #define LCR_SET_BREAK 0x40 // Set Break condition | ||
118 | #define LCR_DL_ENABLE 0x80 // Enable access to divisor latch | ||
119 | |||
120 | #define LCR_ACCESS_EFR 0xBF // Load this value to access DLL,DLM, | ||
121 | // and also the '654-only registers | ||
122 | // EFR, XON1, XON2, XOFF1, XOFF2 | ||
123 | |||
124 | |||
125 | #define MCR_DTR 0x01 // Assert DTR | ||
126 | #define MCR_RTS 0x02 // Assert RTS | ||
127 | #define MCR_OUT1 0x04 // Loopback only: Sets state of RI | ||
128 | #define MCR_MASTER_IE 0x08 // Enable interrupt outputs | ||
129 | #define MCR_LOOPBACK 0x10 // Set internal (digital) loopback mode | ||
130 | #define MCR_XON_ANY 0x20 // Enable any char to exit XOFF mode | ||
131 | #define MCR_IR_ENABLE 0x40 // Enable IrDA functions | ||
132 | #define MCR_BRG_DIV_4 0x80 // Divide baud rate clk by /4 instead of /1 | ||
133 | |||
134 | |||
135 | #define LSR_RX_AVAIL 0x01 // Rx data available | ||
136 | #define LSR_OVER_ERR 0x02 // Rx overrun | ||
137 | #define LSR_PAR_ERR 0x04 // Rx parity error | ||
138 | #define LSR_FRM_ERR 0x08 // Rx framing error | ||
139 | #define LSR_BREAK 0x10 // Rx break condition detected | ||
140 | #define LSR_TX_EMPTY 0x20 // Tx Fifo empty | ||
141 | #define LSR_TX_ALL_EMPTY 0x40 // Tx Fifo and shift register empty | ||
142 | #define LSR_FIFO_ERR 0x80 // Rx Fifo contains at least 1 erred char | ||
143 | |||
144 | |||
145 | #define EDGEPORT_MSR_DELTA_CTS 0x01 // CTS changed from last read | ||
146 | #define EDGEPORT_MSR_DELTA_DSR 0x02 // DSR changed from last read | ||
147 | #define EDGEPORT_MSR_DELTA_RI 0x04 // RI changed from 0 -> 1 | ||
148 | #define EDGEPORT_MSR_DELTA_CD 0x08 // CD changed from last read | ||
149 | #define EDGEPORT_MSR_CTS 0x10 // Current state of CTS | ||
150 | #define EDGEPORT_MSR_DSR 0x20 // Current state of DSR | ||
151 | #define EDGEPORT_MSR_RI 0x40 // Current state of RI | ||
152 | #define EDGEPORT_MSR_CD 0x80 // Current state of CD | ||
153 | |||
154 | |||
155 | |||
156 | // Tx Rx | ||
157 | //------------------------------- | ||
158 | #define EFR_SWFC_NONE 0x00 // None None | ||
159 | #define EFR_SWFC_RX1 0x02 // None XOFF1 | ||
160 | #define EFR_SWFC_RX2 0x01 // None XOFF2 | ||
161 | #define EFR_SWFC_RX12 0x03 // None XOFF1 & XOFF2 | ||
162 | #define EFR_SWFC_TX1 0x08 // XOFF1 None | ||
163 | #define EFR_SWFC_TX1_RX1 0x0a // XOFF1 XOFF1 | ||
164 | #define EFR_SWFC_TX1_RX2 0x09 // XOFF1 XOFF2 | ||
165 | #define EFR_SWFC_TX1_RX12 0x0b // XOFF1 XOFF1 & XOFF2 | ||
166 | #define EFR_SWFC_TX2 0x04 // XOFF2 None | ||
167 | #define EFR_SWFC_TX2_RX1 0x06 // XOFF2 XOFF1 | ||
168 | #define EFR_SWFC_TX2_RX2 0x05 // XOFF2 XOFF2 | ||
169 | #define EFR_SWFC_TX2_RX12 0x07 // XOFF2 XOFF1 & XOFF2 | ||
170 | #define EFR_SWFC_TX12 0x0c // XOFF1 & XOFF2 None | ||
171 | #define EFR_SWFC_TX12_RX1 0x0e // XOFF1 & XOFF2 XOFF1 | ||
172 | #define EFR_SWFC_TX12_RX2 0x0d // XOFF1 & XOFF2 XOFF2 | ||
173 | #define EFR_SWFC_TX12_RX12 0x0f // XOFF1 & XOFF2 XOFF1 & XOFF2 | ||
174 | |||
175 | #define EFR_TX_FC_MASK 0x0c // Mask to isolate Rx flow control | ||
176 | #define EFR_TX_FC_NONE 0x00 // No Tx Xon/Xoff flow control | ||
177 | #define EFR_TX_FC_X1 0x08 // Transmit Xon1/Xoff1 | ||
178 | #define EFR_TX_FC_X2 0x04 // Transmit Xon2/Xoff2 | ||
179 | #define EFR_TX_FC_X1_2 0x0c // Transmit Xon1&2/Xoff1&2 | ||
180 | |||
181 | #define EFR_RX_FC_MASK 0x03 // Mask to isolate Rx flow control | ||
182 | #define EFR_RX_FC_NONE 0x00 // No Rx Xon/Xoff flow control | ||
183 | #define EFR_RX_FC_X1 0x02 // Receiver compares Xon1/Xoff1 | ||
184 | #define EFR_RX_FC_X2 0x01 // Receiver compares Xon2/Xoff2 | ||
185 | #define EFR_RX_FC_X1_2 0x03 // Receiver compares Xon1&2/Xoff1&2 | ||
186 | |||
187 | |||
188 | #define EFR_SWFC_MASK 0x0F // Mask for software flow control field | ||
189 | #define EFR_ENABLE_16654 0x10 // Enable 16C654 features | ||
190 | #define EFR_SPEC_DETECT 0x20 // Enable special character detect interrupt | ||
191 | #define EFR_AUTO_RTS 0x40 // Use RTS for Rx flow control | ||
192 | #define EFR_AUTO_CTS 0x80 // Use CTS for Tx flow control | ||
193 | |||
194 | #endif // if !defined(_16654_H) | ||
195 | |||