| uart_dev_pl011.c (256281) | uart_dev_pl011.c (259319) |
|---|---|
| 1/*- 2 * Copyright (c) 2012 Semihalf. 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 --- 11 unchanged lines hidden (view full) --- 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 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2012 Semihalf. 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 --- 11 unchanged lines hidden (view full) --- 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 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: stable/10/sys/dev/uart/uart_dev_pl011.c 248965 2013-04-01 00:44:20Z ian $"); | 28__FBSDID("$FreeBSD: stable/10/sys/dev/uart/uart_dev_pl011.c 259319 2013-12-13 18:21:27Z ian $"); |
| 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/kernel.h> 33#include <sys/bus.h> 34#include <machine/bus.h> 35 36#include <dev/uart/uart.h> --- 105 unchanged lines hidden (view full) --- 142 line |= LCR_H_WLEN6; 143 break; 144 case 8: 145 default: 146 line |= LCR_H_WLEN8; 147 break; 148 } 149 | 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/kernel.h> 33#include <sys/bus.h> 34#include <machine/bus.h> 35 36#include <dev/uart/uart.h> --- 105 unchanged lines hidden (view full) --- 142 line |= LCR_H_WLEN6; 143 break; 144 case 8: 145 default: 146 line |= LCR_H_WLEN8; 147 break; 148 } 149 |
| 150 /* TODO: Calculate divisors */ 151 baud = (0x1 << 16) | 0x28; 152 | |
| 153 if (stopbits == 2) 154 line |= LCR_H_STP2; 155 else 156 line &= ~LCR_H_STP2; 157 158 if (parity) 159 line |= LCR_H_PEN; 160 else 161 line &= ~LCR_H_PEN; 162 163 /* Configure the rest */ 164 line &= ~LCR_H_FEN; 165 ctrl |= (CR_RXE | CR_TXE | CR_UARTEN); 166 | 150 if (stopbits == 2) 151 line |= LCR_H_STP2; 152 else 153 line &= ~LCR_H_STP2; 154 155 if (parity) 156 line |= LCR_H_PEN; 157 else 158 line &= ~LCR_H_PEN; 159 160 /* Configure the rest */ 161 line &= ~LCR_H_FEN; 162 ctrl |= (CR_RXE | CR_TXE | CR_UARTEN); 163 |
| 167 __uart_setreg(bas, UART_IBRD, ((uint32_t)(baud >> 16)) & IBRD_BDIVINT); 168 __uart_setreg(bas, UART_FBRD, (uint32_t)(baud) & FBRD_BDIVFRAC); | 164 if (bas->rclk != 0 && baudrate != 0) { 165 baud = bas->rclk * 4 / baudrate; 166 __uart_setreg(bas, UART_IBRD, ((uint32_t)(baud >> 6)) & IBRD_BDIVINT); 167 __uart_setreg(bas, UART_FBRD, (uint32_t)(baud & 0x3F) & FBRD_BDIVFRAC); 168 } |
| 169 170 /* Add config. to line before reenabling UART */ 171 __uart_setreg(bas, UART_LCR_H, (__uart_getreg(bas, UART_LCR_H) & 172 ~0xff) | line); 173 174 __uart_setreg(bas, UART_CR, ctrl); 175} 176 --- 267 unchanged lines hidden --- | 169 170 /* Add config. to line before reenabling UART */ 171 __uart_setreg(bas, UART_LCR_H, (__uart_getreg(bas, UART_LCR_H) & 172 ~0xff) | line); 173 174 __uart_setreg(bas, UART_CR, ctrl); 175} 176 --- 267 unchanged lines hidden --- |