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[FreeBSD/releng/10.2.git] / sys / dev / uart / uart_dev_msm.h
1 /*-
2  * Copyright (c) 2014 Ganbold Tsagaankhuu <ganbold@freebsd.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28
29 #ifndef _UART_DM_H_
30 #define _UART_DM_H_
31
32 #define UART_DM_EXTR_BITS(value, start_pos, end_pos) \
33             ((value << (32 - end_pos)) >> (32 - (end_pos - start_pos)))
34
35 /* UART Parity Mode */
36 enum UART_DM_PARITY_MODE {
37         UART_DM_NO_PARITY,
38         UART_DM_ODD_PARITY,
39         UART_DM_EVEN_PARITY,
40         UART_DM_SPACE_PARITY
41 };
42
43 /* UART Stop Bit Length */
44 enum UART_DM_STOP_BIT_LEN {
45         UART_DM_SBL_9_16,
46         UART_DM_SBL_1,
47         UART_DM_SBL_1_9_16,
48         UART_DM_SBL_2
49 };
50
51 /* UART Bits per Char */
52 enum UART_DM_BITS_PER_CHAR {
53         UART_DM_5_BPS,
54         UART_DM_6_BPS,
55         UART_DM_7_BPS,
56         UART_DM_8_BPS
57 };
58
59 /* 8-N-1 Configuration */
60 #define UART_DM_8_N_1_MODE                      (UART_DM_NO_PARITY | \
61                                                 (UART_DM_SBL_1 << 2) | \
62                                                 (UART_DM_8_BPS << 4))
63
64 /* UART_DM Registers */
65
66 /* UART Operational Mode Registers (HSUART) */
67 #define UART_DM_MR1                             0x00
68 #define  UART_DM_MR1_AUTO_RFR_LEVEL1_BMSK       0xffffff00
69 #define  UART_DM_MR1_AUTO_RFR_LEVEL0_BMSK       0x3f
70 #define  UART_DM_MR1_CTS_CTL_BMSK               0x40
71 #define  UART_DM_MR1_RX_RDY_CTL_BMSK            0x80
72
73 #define UART_DM_MR2                             0x04
74 #define  UART_DM_MR2_ERROR_MODE_BMSK            0x40
75 #define  UART_DM_MR2_BITS_PER_CHAR_BMSK         0x30
76 #define  UART_DM_MR2_STOP_BIT_LEN_BMSK          0x0c
77 #define  UART_DM_MR2_PARITY_MODE_BMSK           0x03
78 #define  UART_DM_RXBRK_ZERO_CHAR_OFF            (1 << 8)
79 #define  UART_DM_LOOPBACK                       (1 << 7)
80
81 /* UART Clock Selection Register, write only */
82 #define UART_DM_CSR                             0x08
83 #define  UART_DM_CSR_115200                     0xff
84 #define  UART_DM_CSR_57600                      0xee
85 #define  UART_DM_CSR_38400                      0xdd
86 #define  UART_DM_CSR_28800                      0xcc
87 #define  UART_DM_CSR_19200                      0xbb
88 #define  UART_DM_CSR_14400                      0xaa
89 #define  UART_DM_CSR_9600                       0x99
90 #define  UART_DM_CSR_7200                       0x88
91 #define  UART_DM_CSR_4800                       0x77
92 #define  UART_DM_CSR_3600                       0x66
93 #define  UART_DM_CSR_2400                       0x55
94 #define  UART_DM_CSR_1200                       0x44
95 #define  UART_DM_CSR_600                        0x33
96 #define  UART_DM_CSR_300                        0x22
97 #define  UART_DM_CSR_150                        0x11
98 #define  UART_DM_CSR_75                         0x00
99
100 /* UART DM TX FIFO Registers - 4, write only */
101 #define UART_DM_TF(x)                           (0x70 + (4 * (x)))
102
103 /* UART Command Register, write only */
104 #define UART_DM_CR                              0x10
105 #define  UART_DM_CR_RX_ENABLE                   (1 << 0)
106 #define  UART_DM_CR_RX_DISABLE                  (1 << 1)
107 #define  UART_DM_CR_TX_ENABLE                   (1 << 2)
108 #define  UART_DM_CR_TX_DISABLE                  (1 << 3)
109
110 /* UART_DM_CR channel command bit value (register field is bits 8:4) */
111 #define UART_DM_RESET_RX                        0x10
112 #define UART_DM_RESET_TX                        0x20
113 #define UART_DM_RESET_ERROR_STATUS              0x30
114 #define UART_DM_RESET_BREAK_INT                 0x40
115 #define UART_DM_START_BREAK                     0x50
116 #define UART_DM_STOP_BREAK                      0x60
117 #define UART_DM_RESET_CTS                       0x70
118 #define UART_DM_RESET_STALE_INT                 0x80
119 #define UART_DM_RFR_LOW                         0xD0
120 #define UART_DM_RFR_HIGH                        0xE0
121 #define UART_DM_CR_PROTECTION_EN                0x100
122 #define UART_DM_STALE_EVENT_ENABLE              0x500
123 #define UART_DM_STALE_EVENT_DISABLE             0x600
124 #define UART_DM_FORCE_STALE_EVENT               0x400
125 #define UART_DM_CLEAR_TX_READY                  0x300
126 #define UART_DM_RESET_TX_ERROR                  0x800
127 #define UART_DM_RESET_TX_DONE                   0x810
128
129 /* UART Interrupt Mask Register */
130 #define UART_DM_IMR                             0x14
131 /* these can be used for both ISR and IMR registers */
132 #define UART_DM_TXLEV                           (1 << 0)
133 #define UART_DM_RXHUNT                          (1 << 1)
134 #define UART_DM_RXBRK_CHNG                      (1 << 2)
135 #define UART_DM_RXSTALE                         (1 << 3)
136 #define UART_DM_RXLEV                           (1 << 4)
137 #define UART_DM_DELTA_CTS                       (1 << 5)
138 #define UART_DM_CURRENT_CTS                     (1 << 6)
139 #define UART_DM_TX_READY                        (1 << 7)
140 #define UART_DM_TX_ERROR                        (1 << 8)
141 #define UART_DM_TX_DONE                         (1 << 9)
142 #define UART_DM_RXBREAK_START                   (1 << 10)
143 #define UART_DM_RXBREAK_END                     (1 << 11)
144 #define UART_DM_PAR_FRAME_ERR_IRQ               (1 << 12)
145
146 #define UART_DM_IMR_ENABLED                     (UART_DM_TX_READY | \
147                                                 UART_DM_TXLEV | \
148                                                 UART_DM_RXLEV | \
149                                                 UART_DM_RXSTALE)
150
151 /* UART Interrupt Programming Register */
152 #define UART_DM_IPR                             0x18
153 #define UART_DM_STALE_TIMEOUT_LSB               0x0f
154 #define UART_DM_STALE_TIMEOUT_MSB               0x00
155 #define UART_DM_IPR_STALE_TIMEOUT_MSB_BMSK      0xffffff80
156 #define UART_DM_IPR_STALE_LSB_BMSK              0x1f
157
158 /* UART Transmit/Receive FIFO Watermark Register */
159 #define UART_DM_TFWR                            0x1c
160 /* Interrupt is generated when FIFO level is less than or equal to this value */
161 #define UART_DM_TFW_VALUE                       0
162
163 #define UART_DM_RFWR                            0x20
164 /* Interrupt generated when no of words in RX FIFO is greater than this value */
165 #define UART_DM_RFW_VALUE                       0
166
167 /* UART Hunt Character Register */
168 #define UART_DM_HCR                             0x24
169
170 /* Used for RX transfer initialization */
171 #define UART_DM_DMRX                            0x34
172 /* Default DMRX value - any value bigger than FIFO size would be fine */
173 #define UART_DM_DMRX_DEF_VALUE                  0x220
174
175 /* Register to enable IRDA function */
176 #define UART_DM_IRDA                            0x38
177
178 /* UART Data Mover Enable Register */
179 #define UART_DM_DMEN                            0x3c
180
181 /* Number of characters for Transmission */
182 #define UART_DM_NO_CHARS_FOR_TX                 0x40
183
184 /* UART RX FIFO Base Address */
185 #define UART_DM_BADR                            0x44
186
187 #define UART_DM_SIM_CFG_ADDR                    0x80
188
189 /* Read only registers */
190 /* UART Status Register */
191 #define UART_DM_SR                              0x08
192 /* register field mask mapping */
193 #define  UART_DM_SR_RXRDY                       (1 << 0)
194 #define  UART_DM_SR_RXFULL                      (1 << 1)
195 #define  UART_DM_SR_TXRDY                       (1 << 2)
196 #define  UART_DM_SR_TXEMT                       (1 << 3)
197 #define  UART_DM_SR_UART_OVERRUN                (1 << 4)
198 #define  UART_DM_SR_PAR_FRAME_ERR               (1 << 5)
199 #define  UART_DM_RX_BREAK                       (1 << 6)
200 #define  UART_DM_HUNT_CHAR                      (1 << 7)
201 #define  UART_DM_RX_BRK_START_LAST              (1 << 8)
202
203 /* UART Receive FIFO Registers - 4 in numbers */
204 #define UART_DM_RF(x)                           (0x70 + (4 * (x)))
205
206 /* UART Masked Interrupt Status Register */
207 #define UART_DM_MISR                            0x10
208
209 /* UART Interrupt Status Register */
210 #define UART_DM_ISR                             0x14
211
212 /* Number of characters received since the end of last RX transfer */
213 #define UART_DM_RX_TOTAL_SNAP                   0x38
214
215 /* UART TX FIFO Status Register */
216 #define UART_DM_TXFS                            0x4c
217 #define  UART_DM_TXFS_STATE_LSB(x)              UART_DM_EXTR_BITS(x,0,6)
218 #define  UART_DM_TXFS_STATE_MSB(x)              UART_DM_EXTR_BITS(x,14,31)
219 #define  UART_DM_TXFS_BUF_STATE(x)              UART_DM_EXTR_BITS(x,7,9)
220 #define  UART_DM_TXFS_ASYNC_STATE(x)            UART_DM_EXTR_BITS(x,10,13)
221
222 /* UART RX FIFO Status Register */
223 #define UART_DM_RXFS                            0x50
224 #define  UART_DM_RXFS_STATE_LSB(x)              UART_DM_EXTR_BITS(x,0,6)
225 #define  UART_DM_RXFS_STATE_MSB(x)              UART_DM_EXTR_BITS(x,14,31)
226 #define  UART_DM_RXFS_BUF_STATE(x)              UART_DM_EXTR_BITS(x,7,9)
227 #define  UART_DM_RXFS_ASYNC_STATE(x)            UART_DM_EXTR_BITS(x,10,13)
228
229 #endif  /* _UART_DM_H_ */