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wdenk78f66222002-08-27 10:27:51 +00001/*
2 * (C) Copyright 2000
3 * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
4 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02005 * SPDX-License-Identifier: GPL-2.0+
wdenk78f66222002-08-27 10:27:51 +00006 */
7
8#include <common.h>
Mike Frysinger6c768ca2011-04-29 18:03:29 +00009#include <linux/compiler.h>
wdenk78f66222002-08-27 10:27:51 +000010
wdenk78f66222002-08-27 10:27:51 +000011#include <ns16550.h>
Jean-Christophe PLAGNIOL-VILLARD55d6d2d2008-08-13 01:40:40 +020012#ifdef CONFIG_NS87308
wdenk78f66222002-08-27 10:27:51 +000013#include <ns87308.h>
14#endif
15
Wolfgang Denk0fd30252006-08-30 23:02:10 +020016#include <serial.h>
Wolfgang Denk0fd30252006-08-30 23:02:10 +020017
Scott Wood48cbc3a2012-10-16 15:43:15 -050018#ifndef CONFIG_NS16550_MIN_FUNCTIONS
19
Wolfgang Denkd87080b2006-03-31 18:32:53 +020020DECLARE_GLOBAL_DATA_PTR;
21
wdenk756f5862005-04-03 15:51:42 +000022#if !defined(CONFIG_CONS_INDEX)
Andrew Bradford96708a02012-10-25 08:21:31 -040023#elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 6)
wdenk756f5862005-04-03 15:51:42 +000024#error "Invalid console index value."
wdenk78f66222002-08-27 10:27:51 +000025#endif
26
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020027#if CONFIG_CONS_INDEX == 1 && !defined(CONFIG_SYS_NS16550_COM1)
wdenk756f5862005-04-03 15:51:42 +000028#error "Console port 1 defined but not configured."
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020029#elif CONFIG_CONS_INDEX == 2 && !defined(CONFIG_SYS_NS16550_COM2)
wdenk756f5862005-04-03 15:51:42 +000030#error "Console port 2 defined but not configured."
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020031#elif CONFIG_CONS_INDEX == 3 && !defined(CONFIG_SYS_NS16550_COM3)
wdenk756f5862005-04-03 15:51:42 +000032#error "Console port 3 defined but not configured."
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020033#elif CONFIG_CONS_INDEX == 4 && !defined(CONFIG_SYS_NS16550_COM4)
wdenk756f5862005-04-03 15:51:42 +000034#error "Console port 4 defined but not configured."
Andrew Bradford96708a02012-10-25 08:21:31 -040035#elif CONFIG_CONS_INDEX == 5 && !defined(CONFIG_SYS_NS16550_COM5)
36#error "Console port 5 defined but not configured."
37#elif CONFIG_CONS_INDEX == 6 && !defined(CONFIG_SYS_NS16550_COM6)
38#error "Console port 6 defined but not configured."
wdenk756f5862005-04-03 15:51:42 +000039#endif
40
41/* Note: The port number specified in the functions is 1 based.
42 * the array is 0 based.
43 */
Andrew Bradford96708a02012-10-25 08:21:31 -040044static NS16550_t serial_ports[6] = {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020045#ifdef CONFIG_SYS_NS16550_COM1
46 (NS16550_t)CONFIG_SYS_NS16550_COM1,
wdenk756f5862005-04-03 15:51:42 +000047#else
48 NULL,
49#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020050#ifdef CONFIG_SYS_NS16550_COM2
51 (NS16550_t)CONFIG_SYS_NS16550_COM2,
wdenk756f5862005-04-03 15:51:42 +000052#else
53 NULL,
54#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020055#ifdef CONFIG_SYS_NS16550_COM3
56 (NS16550_t)CONFIG_SYS_NS16550_COM3,
wdenk756f5862005-04-03 15:51:42 +000057#else
58 NULL,
59#endif
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020060#ifdef CONFIG_SYS_NS16550_COM4
Andrew Bradford96708a02012-10-25 08:21:31 -040061 (NS16550_t)CONFIG_SYS_NS16550_COM4,
62#else
63 NULL,
64#endif
65#ifdef CONFIG_SYS_NS16550_COM5
66 (NS16550_t)CONFIG_SYS_NS16550_COM5,
67#else
68 NULL,
69#endif
70#ifdef CONFIG_SYS_NS16550_COM6
71 (NS16550_t)CONFIG_SYS_NS16550_COM6
wdenk756f5862005-04-03 15:51:42 +000072#else
73 NULL
74#endif
75};
76
77#define PORT serial_ports[port-1]
Wolfgang Denk0fd30252006-08-30 23:02:10 +020078
Wolfgang Denk0fd30252006-08-30 23:02:10 +020079/* Multi serial device functions */
80#define DECLARE_ESERIAL_FUNCTIONS(port) \
Kim Phillipsac63f2a2012-10-29 13:34:47 +000081 static int eserial##port##_init(void) \
82 { \
83 int clock_divisor; \
Simon Glassfa54eb12014-09-04 16:27:32 -060084 clock_divisor = ns16550_calc_divisor(serial_ports[port-1], \
85 CONFIG_SYS_NS16550_CLK, gd->baudrate); \
Kim Phillipsac63f2a2012-10-29 13:34:47 +000086 NS16550_init(serial_ports[port-1], clock_divisor); \
87 return 0 ; \
88 } \
89 static void eserial##port##_setbrg(void) \
90 { \
91 serial_setbrg_dev(port); \
92 } \
93 static int eserial##port##_getc(void) \
94 { \
95 return serial_getc_dev(port); \
96 } \
97 static int eserial##port##_tstc(void) \
98 { \
99 return serial_tstc_dev(port); \
100 } \
101 static void eserial##port##_putc(const char c) \
102 { \
103 serial_putc_dev(port, c); \
104 } \
105 static void eserial##port##_puts(const char *s) \
106 { \
107 serial_puts_dev(port, s); \
108 }
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200109
110/* Serial device descriptor */
Marek Vasut90bad892012-09-09 18:48:28 +0200111#define INIT_ESERIAL_STRUCTURE(port, __name) { \
112 .name = __name, \
113 .start = eserial##port##_init, \
114 .stop = NULL, \
115 .setbrg = eserial##port##_setbrg, \
116 .getc = eserial##port##_getc, \
117 .tstc = eserial##port##_tstc, \
118 .putc = eserial##port##_putc, \
119 .puts = eserial##port##_puts, \
120}
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200121
wdenk78f66222002-08-27 10:27:51 +0000122void
wdenk756f5862005-04-03 15:51:42 +0000123_serial_putc(const char c,const int port)
wdenk78f66222002-08-27 10:27:51 +0000124{
125 if (c == '\n')
wdenk756f5862005-04-03 15:51:42 +0000126 NS16550_putc(PORT, '\r');
wdenk78f66222002-08-27 10:27:51 +0000127
wdenk756f5862005-04-03 15:51:42 +0000128 NS16550_putc(PORT, c);
wdenk78f66222002-08-27 10:27:51 +0000129}
130
131void
wdenk756f5862005-04-03 15:51:42 +0000132_serial_putc_raw(const char c,const int port)
133{
134 NS16550_putc(PORT, c);
135}
136
137void
138_serial_puts (const char *s,const int port)
wdenk78f66222002-08-27 10:27:51 +0000139{
140 while (*s) {
wdenk756f5862005-04-03 15:51:42 +0000141 _serial_putc (*s++,port);
wdenk78f66222002-08-27 10:27:51 +0000142 }
143}
144
145
146int
wdenk756f5862005-04-03 15:51:42 +0000147_serial_getc(const int port)
148{
149 return NS16550_getc(PORT);
150}
151
152int
153_serial_tstc(const int port)
154{
155 return NS16550_tstc(PORT);
156}
157
158void
159_serial_setbrg (const int port)
160{
161 int clock_divisor;
162
Simon Glassfa54eb12014-09-04 16:27:32 -0600163 clock_divisor = ns16550_calc_divisor(PORT, CONFIG_SYS_NS16550_CLK,
164 gd->baudrate);
wdenk756f5862005-04-03 15:51:42 +0000165 NS16550_reinit(PORT, clock_divisor);
166}
167
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200168static inline void
169serial_putc_dev(unsigned int dev_index,const char c)
170{
171 _serial_putc(c,dev_index);
172}
wdenk756f5862005-04-03 15:51:42 +0000173
Wolfgang Denk511d0c72006-10-09 00:42:01 +0200174static inline void
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200175serial_putc_raw_dev(unsigned int dev_index,const char c)
176{
177 _serial_putc_raw(c,dev_index);
178}
wdenk756f5862005-04-03 15:51:42 +0000179
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200180static inline void
181serial_puts_dev(unsigned int dev_index,const char *s)
182{
183 _serial_puts(s,dev_index);
184}
wdenk756f5862005-04-03 15:51:42 +0000185
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200186static inline int
187serial_getc_dev(unsigned int dev_index)
188{
189 return _serial_getc(dev_index);
190}
wdenk78f66222002-08-27 10:27:51 +0000191
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200192static inline int
193serial_tstc_dev(unsigned int dev_index)
194{
195 return _serial_tstc(dev_index);
196}
wdenk78f66222002-08-27 10:27:51 +0000197
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200198static inline void
199serial_setbrg_dev(unsigned int dev_index)
200{
201 _serial_setbrg(dev_index);
202}
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200203
Scott Wood55db9cc2013-01-18 15:42:16 +0000204#if defined(CONFIG_SYS_NS16550_COM1)
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200205DECLARE_ESERIAL_FUNCTIONS(1);
Wolfgang Denk511d0c72006-10-09 00:42:01 +0200206struct serial_device eserial1_device =
Mike Frysinger1c9a5602011-04-29 18:03:31 +0000207 INIT_ESERIAL_STRUCTURE(1, "eserial0");
Scott Wood55db9cc2013-01-18 15:42:16 +0000208#endif
209#if defined(CONFIG_SYS_NS16550_COM2)
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200210DECLARE_ESERIAL_FUNCTIONS(2);
211struct serial_device eserial2_device =
Mike Frysinger1c9a5602011-04-29 18:03:31 +0000212 INIT_ESERIAL_STRUCTURE(2, "eserial1");
Scott Wood55db9cc2013-01-18 15:42:16 +0000213#endif
214#if defined(CONFIG_SYS_NS16550_COM3)
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200215DECLARE_ESERIAL_FUNCTIONS(3);
216struct serial_device eserial3_device =
Mike Frysinger1c9a5602011-04-29 18:03:31 +0000217 INIT_ESERIAL_STRUCTURE(3, "eserial2");
Scott Wood55db9cc2013-01-18 15:42:16 +0000218#endif
219#if defined(CONFIG_SYS_NS16550_COM4)
Wolfgang Denk0fd30252006-08-30 23:02:10 +0200220DECLARE_ESERIAL_FUNCTIONS(4);
221struct serial_device eserial4_device =
Mike Frysinger1c9a5602011-04-29 18:03:31 +0000222 INIT_ESERIAL_STRUCTURE(4, "eserial3");
Scott Wood55db9cc2013-01-18 15:42:16 +0000223#endif
224#if defined(CONFIG_SYS_NS16550_COM5)
Andrew Bradford96708a02012-10-25 08:21:31 -0400225DECLARE_ESERIAL_FUNCTIONS(5);
226struct serial_device eserial5_device =
227 INIT_ESERIAL_STRUCTURE(5, "eserial4");
Scott Wood55db9cc2013-01-18 15:42:16 +0000228#endif
229#if defined(CONFIG_SYS_NS16550_COM6)
Andrew Bradford96708a02012-10-25 08:21:31 -0400230DECLARE_ESERIAL_FUNCTIONS(6);
231struct serial_device eserial6_device =
232 INIT_ESERIAL_STRUCTURE(6, "eserial5");
Scott Wood55db9cc2013-01-18 15:42:16 +0000233#endif
Mike Frysinger6c768ca2011-04-29 18:03:29 +0000234
235__weak struct serial_device *default_serial_console(void)
236{
237#if CONFIG_CONS_INDEX == 1
238 return &eserial1_device;
239#elif CONFIG_CONS_INDEX == 2
240 return &eserial2_device;
241#elif CONFIG_CONS_INDEX == 3
242 return &eserial3_device;
243#elif CONFIG_CONS_INDEX == 4
244 return &eserial4_device;
Andrew Bradford96708a02012-10-25 08:21:31 -0400245#elif CONFIG_CONS_INDEX == 5
246 return &eserial5_device;
247#elif CONFIG_CONS_INDEX == 6
248 return &eserial6_device;
Mike Frysinger6c768ca2011-04-29 18:03:29 +0000249#else
250#error "Bad CONFIG_CONS_INDEX."
251#endif
252}
253
Marek Vasutabc0ed82012-09-12 20:02:05 +0200254void ns16550_serial_initialize(void)
255{
256#if defined(CONFIG_SYS_NS16550_COM1)
257 serial_register(&eserial1_device);
258#endif
259#if defined(CONFIG_SYS_NS16550_COM2)
260 serial_register(&eserial2_device);
261#endif
262#if defined(CONFIG_SYS_NS16550_COM3)
263 serial_register(&eserial3_device);
264#endif
265#if defined(CONFIG_SYS_NS16550_COM4)
266 serial_register(&eserial4_device);
267#endif
Andrew Bradford96708a02012-10-25 08:21:31 -0400268#if defined(CONFIG_SYS_NS16550_COM5)
269 serial_register(&eserial5_device);
270#endif
271#if defined(CONFIG_SYS_NS16550_COM6)
272 serial_register(&eserial6_device);
273#endif
Marek Vasutabc0ed82012-09-12 20:02:05 +0200274}
Scott Wood48cbc3a2012-10-16 15:43:15 -0500275
276#endif /* !CONFIG_NS16550_MIN_FUNCTIONS */