diff options
Diffstat (limited to 'roms/u-boot-sam460ex/common/serial.c')
| -rw-r--r-- | roms/u-boot-sam460ex/common/serial.c | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/roms/u-boot-sam460ex/common/serial.c b/roms/u-boot-sam460ex/common/serial.c new file mode 100644 index 000000000..fceabfa1e --- /dev/null +++ b/roms/u-boot-sam460ex/common/serial.c @@ -0,0 +1,302 @@ +/* + * (C) Copyright 2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <serial.h> +#include <stdio_dev.h> + +DECLARE_GLOBAL_DATA_PTR; + +static struct serial_device *serial_devices = NULL; +static struct serial_device *serial_current = NULL; + +#if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X) +struct serial_device *__default_serial_console (void) +{ +#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2) + return &serial_smc_device; +#elif defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \ + || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4) + return &serial_scc_device; +#elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \ + || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \ + || defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC83xx) \ + || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) \ + || defined(CONFIG_SYS_SC520) +#if defined(CONFIG_CONS_INDEX) && defined(CONFIG_SYS_NS16550_SERIAL) +#if (CONFIG_CONS_INDEX==1) + return &eserial1_device; +#elif (CONFIG_CONS_INDEX==2) + return &eserial2_device; +#elif (CONFIG_CONS_INDEX==3) + return &eserial3_device; +#elif (CONFIG_CONS_INDEX==4) + return &eserial4_device; +#else +#error "Bad CONFIG_CONS_INDEX." +#endif +#elif defined(CONFIG_UART1_CONSOLE) + return &serial1_device; +#else + return &serial0_device; +#endif +#elif defined(CONFIG_MPC512X) +#if (CONFIG_PSC_CONSOLE == 3) + return &serial3_device; +#elif (CONFIG_PSC_CONSOLE == 6) + return &serial6_device; +#else +#error "Bad CONFIG_PSC_CONSOLE." +#endif +#elif defined(CONFIG_S3C2410) +#if defined(CONFIG_SERIAL1) + return &s3c24xx_serial0_device; +#elif defined(CONFIG_SERIAL2) + return &s3c24xx_serial1_device; +#elif defined(CONFIG_SERIAL3) + return &s3c24xx_serial2_device; +#else +#error "CONFIG_SERIAL? missing." +#endif +#elif defined(CONFIG_S5PC1XX) +#if defined(CONFIG_SERIAL0) + return &s5p_serial0_device; +#elif defined(CONFIG_SERIAL1) + return &s5p_serial1_device; +#elif defined(CONFIG_SERIAL2) + return &s5p_serial2_device; +#elif defined(CONFIG_SERIAL3) + return &s5p_serial3_device; +#else +#error "CONFIG_SERIAL? missing." +#endif +#elif defined(CONFIG_OMAP3_ZOOM2) + return ZOOM2_DEFAULT_SERIAL_DEVICE; +#else +#error No default console +#endif +} + +struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console"))); +#endif + +int serial_register (struct serial_device *dev) +{ +#ifndef CONFIG_RELOC_FIXUP_WORKS + dev->init += gd->reloc_off; + dev->setbrg += gd->reloc_off; + dev->getc += gd->reloc_off; + dev->tstc += gd->reloc_off; + dev->putc += gd->reloc_off; + dev->puts += gd->reloc_off; +#endif + + dev->next = serial_devices; + serial_devices = dev; + + return 0; +} + +void serial_initialize (void) +{ +#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2) + serial_register (&serial_smc_device); +#endif +#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \ + || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4) + serial_register (&serial_scc_device); +#endif + +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \ + || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \ + || defined(CONFIG_MPC5xxx) + serial_register(&serial0_device); + serial_register(&serial1_device); +#endif + +#if defined(CONFIG_SYS_NS16550_SERIAL) +#if defined(CONFIG_SYS_NS16550_COM1) + serial_register(&eserial1_device); +#endif +#if defined(CONFIG_SYS_NS16550_COM2) + serial_register(&eserial2_device); +#endif +#if defined(CONFIG_SYS_NS16550_COM3) + serial_register(&eserial3_device); +#endif +#if defined(CONFIG_SYS_NS16550_COM4) + serial_register(&eserial4_device); +#endif +#endif /* CONFIG_SYS_NS16550_SERIAL */ +#if defined (CONFIG_FFUART) + serial_register(&serial_ffuart_device); +#endif +#if defined (CONFIG_BTUART) + serial_register(&serial_btuart_device); +#endif +#if defined (CONFIG_STUART) + serial_register(&serial_stuart_device); +#endif +#if defined(CONFIG_S3C2410) + serial_register(&s3c24xx_serial0_device); + serial_register(&s3c24xx_serial1_device); + serial_register(&s3c24xx_serial2_device); +#endif +#if defined(CONFIG_S5PC1XX) + serial_register(&s5p_serial0_device); + serial_register(&s5p_serial1_device); + serial_register(&s5p_serial2_device); + serial_register(&s5p_serial3_device); +#endif +#if defined(CONFIG_MPC512X) +#if defined(CONFIG_SYS_PSC1) + serial_register(&serial1_device); +#endif +#if defined(CONFIG_SYS_PSC3) + serial_register(&serial3_device); +#endif +#if defined(CONFIG_SYS_PSC4) + serial_register(&serial4_device); +#endif +#if defined(CONFIG_SYS_PSC6) + serial_register(&serial6_device); +#endif +#endif + serial_assign (default_serial_console ()->name); +} + +void serial_stdio_init (void) +{ + struct stdio_dev dev; + struct serial_device *s = serial_devices; + + while (s) { + memset (&dev, 0, sizeof (dev)); + + strcpy (dev.name, s->name); + dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT; + + dev.start = s->init; + dev.stop = s->uninit; + dev.putc = s->putc; + dev.puts = s->puts; + dev.getc = s->getc; + dev.tstc = s->tstc; + + stdio_register (&dev); + + s = s->next; + } +} + +int serial_assign (char *name) +{ + struct serial_device *s; + + for (s = serial_devices; s; s = s->next) { + if (strcmp (s->name, name) == 0) { + serial_current = s; + return 0; + } + } + + return 1; +} + +void serial_reinit_all (void) +{ + struct serial_device *s; + + for (s = serial_devices; s; s = s->next) { + s->init (); + } +} + +int serial_init (void) +{ + if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { + struct serial_device *dev = default_serial_console (); + + return dev->init (); + } + + return serial_current->init (); +} + +void serial_setbrg (void) +{ + if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { + struct serial_device *dev = default_serial_console (); + + dev->setbrg (); + return; + } + + serial_current->setbrg (); +} + +int serial_getc (void) +{ + if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { + struct serial_device *dev = default_serial_console (); + + return dev->getc (); + } + + return serial_current->getc (); +} + +int serial_tstc (void) +{ + if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { + struct serial_device *dev = default_serial_console (); + + return dev->tstc (); + } + + return serial_current->tstc (); +} + +void serial_putc (const char c) +{ + if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { + struct serial_device *dev = default_serial_console (); + + dev->putc (c); + return; + } + + serial_current->putc (c); +} + +void serial_puts (const char *s) +{ + if (!(gd->flags & GD_FLG_RELOC) || !serial_current) { + struct serial_device *dev = default_serial_console (); + + dev->puts (s); + return; + } + + serial_current->puts (s); +} |