1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
|
/**
* Copyright (c) 2018 Fuzhou Rockchip Electronics Co., Ltd
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************
* @file drv_uart.c
* @author Huibin Hong
* @version V0.5
* @date 10-Dec-2018
* @brief serial driver
*
******************************************************************************
*/
#include <rthw.h>
#include <rtdevice.h>
#include <rtthread.h>
#ifdef RT_USING_UART
#include "hal_base.h"
#include "hal_bsp.h"
#include "drv_uart.h"
#include "drv_clock.h"
#ifdef RK_BSP_TEMP
#include "drv_pm.h"
#endif
#include "board.h"
/****************************************************************************
* Private Types
****************************************************************************/
struct rockchip_uart
{
const struct uart_board *uart_board;
/* HAL */
const struct HAL_UART_DEV *dev;
/* irq handler */
rt_isr_handler_t irq_handler;
};
static int rockchip_uart_irq(rt_serial_t *serial);
#define DEFINE_ROCKCHIP_UART(ID) \
static void rockchip_uart##ID##_irq(int irq, void *param); \
static struct rt_serial_device serial##ID; \
static struct rockchip_uart rk_uart##ID = \
{ \
.uart_board = &g_uart##ID##_board, \
.dev = &g_uart##ID##Dev, \
.irq_handler = rockchip_uart##ID##_irq, \
}; \
static void rockchip_uart##ID##_irq(int irq, void *param) \
{ \
rockchip_uart_irq(&serial##ID); \
} \
#if defined(RT_USING_UART0)
DEFINE_ROCKCHIP_UART(0);
#endif /* RT_USING_UART0 */
#if defined(RT_USING_UART1)
DEFINE_ROCKCHIP_UART(1);
#endif /* RT_USING_UART1 */
#if defined(RT_USING_UART2)
DEFINE_ROCKCHIP_UART(2);
#endif /* RT_USING_UART2 */
#if defined(RT_USING_UART3)
DEFINE_ROCKCHIP_UART(3);
#endif /* RT_USING_UART3 */
#if defined(RT_USING_UART4)
DEFINE_ROCKCHIP_UART(4);
#endif /* RT_USING_UART4 */
#if defined(RT_USING_UART5)
DEFINE_ROCKCHIP_UART(5);
#endif /* RT_USING_UART5 */
#if defined(RT_USING_UART6)
DEFINE_ROCKCHIP_UART(6);
#endif /* RT_USING_UART6 */
#if defined(RT_USING_UART7)
DEFINE_ROCKCHIP_UART(7);
#endif /* RT_USING_UART7 */
#if defined(RT_USING_UART8)
DEFINE_ROCKCHIP_UART(8);
#endif /* RT_USING_UART8 */
#if defined(RT_USING_UART9)
DEFINE_ROCKCHIP_UART(9);
#endif /* RT_USING_UART9 */
static struct rockchip_uart *rk_uart_table[] =
{
#if defined(RT_USING_UART0)
&rk_uart0,
#endif
#if defined(RT_USING_UART1)
&rk_uart1,
#endif
#if defined(RT_USING_UART2)
&rk_uart2,
#endif
#if defined(RT_USING_UART3)
&rk_uart3,
#endif
#if defined(RT_USING_UART4)
&rk_uart4,
#endif
#if defined(RT_USING_UART5)
&rk_uart5,
#endif
#if defined(RT_USING_UART6)
&rk_uart6,
#endif
#if defined(RT_USING_UART7)
&rk_uart7,
#endif
#if defined(RT_USING_UART8)
&rk_uart8,
#endif
#if defined(RT_USING_UART9)
&rk_uart9,
#endif
};
static struct rt_serial_device *rt_serial_table[] =
{
#if defined(RT_USING_UART0)
&serial0,
#endif
#if defined(RT_USING_UART1)
&serial1,
#endif
#if defined(RT_USING_UART2)
&serial2,
#endif
#if defined(RT_USING_UART3)
&serial3,
#endif
#if defined(RT_USING_UART4)
&serial4,
#endif
#if defined(RT_USING_UART5)
&serial5,
#endif
#if defined(RT_USING_UART6)
&serial6,
#endif
#if defined(RT_USING_UART7)
&serial7,
#endif
#if defined(RT_USING_UART8)
&serial8,
#endif
#if defined(RT_USING_UART9)
&serial9,
#endif
};
static int rockchip_uart_putc(rt_serial_t *serial, char c)
{
struct rockchip_uart *uart = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uart = (struct rockchip_uart *)serial->parent.user_data;
HAL_UART_SerialOutChar(uart->dev->pReg, c);
return 1;
}
static int rockchip_uart_getc(rt_serial_t *serial)
{
rt_uint8_t c = 0;
int ret = -1;
struct rockchip_uart *uart = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uart = (struct rockchip_uart *)serial->parent.user_data;
ret = HAL_UART_SerialIn(uart->dev->pReg, &c, 1);
if (ret <= 0)
{
return -1;
}
else
{
ret = c;
return ret;
}
}
int rt_hw_console_channel(void)
{
#if defined(RT_CONSOLE_DEVICE_NAME)
#if defined(RT_USING_UART0)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart0"))
return 0;
#endif
#if defined(RT_USING_UART1)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart1"))
return 1;
#endif
#if defined(RT_USING_UART2)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart2"))
return 2;
#endif
#if defined(RT_USING_UART3)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart3"))
return 3;
#endif
#if defined(RT_USING_UART4)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart4"))
return 4;
#endif
#if defined(RT_USING_UART5)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart5"))
return 5;
#endif
#if defined(RT_USING_UART6)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart6"))
return 6;
#endif
#if defined(RT_USING_UART7)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart7"))
return 7;
#endif
#if defined(RT_USING_UART8)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart8"))
return 8;
#endif
#if defined(RT_USING_UART9)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart9"))
return 9;
#endif
#endif
return -RT_EINVAL;
}
void rt_hw_console_output(const char *str)
{
struct rockchip_uart *uart = RT_NULL;
#if defined(RT_CONSOLE_DEVICE_NAME)
#if defined(RT_USING_UART0)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart0"))
uart = &rk_uart0;
#endif
#if defined(RT_USING_UART1)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart1"))
uart = &rk_uart1;
#endif
#if defined(RT_USING_UART2)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart2"))
uart = &rk_uart2;
#endif
#if defined(RT_USING_UART3)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart3"))
uart = &rk_uart3;
#endif
#if defined(RT_USING_UART4)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart4"))
uart = &rk_uart4;
#endif
#if defined(RT_USING_UART5)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart5"))
uart = &rk_uart5;
#endif
#if defined(RT_USING_UART6)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart6"))
uart = &rk_uart6;
#endif
#if defined(RT_USING_UART7)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart7"))
uart = &rk_uart7;
#endif
#if defined(RT_USING_UART8)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart8"))
uart = &rk_uart8;
#endif
#if defined(RT_USING_UART9)
if (!strcmp(RT_CONSOLE_DEVICE_NAME, "uart9"))
uart = &rk_uart9;
#endif
#endif
if (!uart)
return;
while (*str)
{
if (*str == '\n')
HAL_UART_SerialOutChar(uart->dev->pReg, '\r');
HAL_UART_SerialOutChar(uart->dev->pReg, *str);
str++;
}
}
static rt_err_t rockchip_uart_configure(rt_serial_t *serial, struct serial_configure *cfg)
{
struct rockchip_uart *uart = RT_NULL;
struct HAL_UART_CONFIG hal_uart_config;
const struct HAL_UART_DEV *dev;
RT_ASSERT(serial != RT_NULL);
uart = (struct rockchip_uart *)serial->parent.user_data;
dev = uart->dev;
if (cfg->stop_bits == STOP_BITS_1)
hal_uart_config.stopBit = UART_ONE_STOPBIT;
else if (cfg->stop_bits == STOP_BITS_2)
hal_uart_config.stopBit = UART_ONE_AND_HALF_OR_TWO_STOPBIT;
else
rt_kprintf("STOP_BITS_3 and STOP_BITS_4 are not supported\n");
if (cfg->parity == PARITY_ODD)
hal_uart_config.parity = UART_ODD_PARITY;
else if (cfg->parity == PARITY_EVEN)
hal_uart_config.parity = UART_EVEN_PARITY;
else
hal_uart_config.parity = UART_PARITY_DISABLE;
hal_uart_config.baudRate = cfg->baud_rate;
hal_uart_config.dataBit = cfg->data_bits;
HAL_UART_Init(dev, &hal_uart_config);
#ifdef RK_BSP_TEMP
if (dev->isAutoFlow && (cfg->flow_ctrl == RT_SERIAL_AUTO_FLOW_ENABLE))
HAL_UART_EnableAutoFlowControl(dev->pReg);
else
HAL_UART_DisableAutoFlowControl(dev->pReg);
#endif
rt_hw_interrupt_umask(dev->irqNum);
return RT_EOK;
}
static rt_err_t rockchip_uart_control(rt_serial_t *serial, int cmd, void *arg)
{
struct rockchip_uart *uart = RT_NULL;
struct UART_REG *hw_base = RT_NULL;
const struct HAL_UART_DEV *dev;
rt_uint32_t flag = (rt_uint32_t)arg;
RT_ASSERT(serial != RT_NULL);
uart = (struct rockchip_uart *)serial->parent.user_data;
hw_base = uart->dev->pReg;
dev = uart->dev;
switch (cmd)
{
case RT_DEVICE_CTRL_CLR_INT:
if (flag == RT_DEVICE_FLAG_INT_RX)
HAL_UART_DisableIrq(hw_base, UART_IER_RDI);
else if (flag == RT_DEVICE_FLAG_INT_TX)
HAL_UART_DisableIrq(hw_base, UART_IER_THRI);
break;
case RT_DEVICE_CTRL_SET_INT:
if (flag == RT_DEVICE_FLAG_INT_RX)
HAL_UART_EnableIrq(hw_base, UART_IER_RDI);
else if (flag == RT_DEVICE_FLAG_INT_TX)
HAL_UART_EnableIrq(hw_base, UART_IER_THRI);
break;
case RT_DEVICE_CTRL_CONFIG:
if (flag == RT_DEVICE_FLAG_DMA_RX)
HAL_UART_EnableIrq(hw_base, UART_IER_RDI);
break;
#ifdef RK_BSP_TEMP
case RT_DEVICE_CTRL_HW_OPEN:
clk_enable_by_id(dev->sclkGateID);
break;
case RT_DEVICE_CTRL_HW_CLOSE:
clk_disable_by_id(dev->sclkGateID);
break;
#endif
}
return RT_EOK;
}
static int rockchip_uart_irq(rt_serial_t *serial)
{
rt_uint32_t iir = 0;
struct rockchip_uart *uart = RT_NULL;
struct UART_REG *hw_base = RT_NULL;
RT_ASSERT(serial != RT_NULL);
uart = (struct rockchip_uart *)serial->parent.user_data;
hw_base = uart->dev->pReg;
rt_interrupt_enter();
iir = HAL_UART_GetIrqID(hw_base);
switch (iir)
{
case UART_IIR_RDI:
case UART_IIR_RX_TIMEOUT:
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
break;
case UART_IIR_THRI:
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DONE);
break;
default:
HAL_UART_HandleIrq(hw_base);
break;
}
rt_interrupt_leave();
return 0;
}
static const struct rt_uart_ops rockchip_uart_ops =
{
rockchip_uart_configure,
rockchip_uart_control,
rockchip_uart_putc,
rockchip_uart_getc,
};
#ifdef RT_USING_PM
static struct UART_SAVE_CONFIG pUartSave;
static int rockchip_uart_suspend(const struct rt_device *device)
{
struct rockchip_uart *uart = RT_NULL;
const struct HAL_UART_DEV *dev;
RT_ASSERT(device != RT_NULL);
uart = (struct rockchip_uart *)device->user_data;
dev = uart->dev;
rt_hw_interrupt_mask(dev->irqNum);
HAL_UART_Suspend(dev->pReg, &pUartSave);
clk_disable_by_id(dev->pclkGateID);
clk_disable_by_id(dev->sclkGateID);
return RT_EOK;
}
static void rockchip_uart_resume(const struct rt_device *device)
{
struct rockchip_uart *uart = RT_NULL;
const struct HAL_UART_DEV *dev;
RT_ASSERT(device != RT_NULL);
uart = (struct rockchip_uart *)device->user_data;
dev = uart->dev;
clk_enable_by_id(dev->pclkGateID);
clk_enable_by_id(dev->sclkGateID);
HAL_UART_Reset(dev->pReg);
HAL_UART_Resume(dev->pReg, &pUartSave);
rt_hw_interrupt_umask(dev->irqNum);
}
static const struct rt_device_pm_ops rockchip_uart_pm_ops =
{
.suspend = rockchip_uart_suspend,
.resume = rockchip_uart_resume,
};
int rockchip_rt_hw_uart_pm_register(void)
{
int i = 0;
struct rockchip_uart *uart;
struct rt_serial_device *serial;
const struct uart_board *uart_board;
for (i = 0; i < HAL_ARRAY_SIZE(rk_uart_table); i++)
{
uart = rk_uart_table[i];
if (uart)
{
rt_bool_t is_console;
uart_board = uart->uart_board;
#ifdef RT_CONSOLE_DEVICE_NAME
if (!strcmp(RT_CONSOLE_DEVICE_NAME, uart_board->name))
is_console = true;
else
is_console = false;
#else
is_console = false;
#endif
serial = rt_serial_table[i];
serial->ops = &rockchip_uart_ops;
#ifdef RK_BSP_TEMP
if (!is_console && !uart_board->en_irq_wake)
rt_pm_register_device(&serial->parent, &rockchip_uart_pm_ops);
#endif
}
}
return 0;
}
INIT_PREV_EXPORT(rockchip_rt_hw_uart_pm_register);
#endif
void rt_hw_usart_init(void)
{
int i = 0;
struct rockchip_uart *uart;
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
struct rt_serial_device *serial;
const struct HAL_UART_DEV *dev;
const struct uart_board *uart_board;
for (i = 0; i < HAL_ARRAY_SIZE(rk_uart_table); i++)
{
uart = rk_uart_table[i];
if (uart)
{
rt_bool_t is_console; /* uart is used for console */
dev = uart->dev;
uart_board = uart->uart_board;
if (uart_board->baud_rate)
{
config.baud_rate = uart_board->baud_rate;
}
#ifdef RT_CONSOLE_DEVICE_NAME
if (!strcmp(RT_CONSOLE_DEVICE_NAME, uart_board->name))
{
is_console = true;
}
else
{
is_console = false;
}
#else
is_console = false;
#endif
config.bufsz = uart_board->bufer_size;
serial = rt_serial_table[i];
serial->ops = &rockchip_uart_ops;
serial->config = config;
/* enable uart clk here */
clk_enable_by_id(dev->pclkGateID);
clk_enable_by_id(dev->sclkGateID);
if (!is_console)
HAL_UART_Reset(dev->pReg);
/* register UARTx device */
rt_hw_serial_register(serial, uart_board->name,
uart_board->dev_flag, (void *)uart);
/* enable interrupt */
rt_hw_interrupt_install(dev->irqNum, uart->irq_handler,
RT_NULL, uart_board->name);
rt_hw_interrupt_mask(dev->irqNum);
}
}
}
#endif
|
