diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Makefile | 8 | ||||
| -rw-r--r-- | common/circbuf.c | 110 | ||||
| -rw-r--r-- | common/cmd_load.c | 42 | ||||
| -rw-r--r-- | common/devices.c | 3 |
4 files changed, 138 insertions, 25 deletions
diff --git a/common/Makefile b/common/Makefile index eccb4e4..4c94fc0 100644 --- a/common/Makefile +++ b/common/Makefile @@ -1,5 +1,5 @@ # -# (C) Copyright 2000, 2001 +# (C) Copyright 2004 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. # # See file CREDITS for list of people who contributed to this @@ -12,7 +12,7 @@ # # 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 +# 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 @@ -47,7 +47,7 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o \ hush.o kgdb.o lists.o lynxkdi.o memsize.o miiphybb.o miiphyutil.o \ s_record.o soft_i2c.o soft_spi.o spartan2.o \ usb.o usb_kbd.o usb_storage.o \ - virtex2.o xilinx.o + virtex2.o xilinx.o circbuf.o OBJS = $(AOBJS) $(COBJS) @@ -55,7 +55,7 @@ CPPFLAGS += -I.. all: $(LIB) $(AOBJS) -$(LIB): .depend $(OBJS) +$(LIB): .depend $(OBJS) $(AR) crv $@ $(OBJS) environment.o: environment.c ../tools/envcrc diff --git a/common/circbuf.c b/common/circbuf.c new file mode 100644 index 0000000..2332c63 --- /dev/null +++ b/common/circbuf.c @@ -0,0 +1,110 @@ +/* + * (C) Copyright 2003 + * Gerry Hamel, geh@ti.com, Texas Instruments + * + * 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 <malloc.h> + +#include <circbuf.h> + + +int buf_init (circbuf_t * buf, unsigned int size) +{ + assert (buf != NULL); + + buf->size = 0; + buf->totalsize = size; + buf->data = (char *) malloc (sizeof (char) * size); + assert (buf->data != NULL); + + buf->top = buf->data; + buf->tail = buf->data; + buf->end = &(buf->data[size]); + + return 1; +} + +int buf_free (circbuf_t * buf) +{ + assert (buf != NULL); + assert (buf->data != NULL); + + free (buf->data); + memset (buf, 0, sizeof (circbuf_t)); + + return 1; +} + +int buf_pop (circbuf_t * buf, char *dest, unsigned int len) +{ + unsigned int i; + char *p = buf->top; + + assert (buf != NULL); + assert (dest != NULL); + + /* Cap to number of bytes in buffer */ + if (len > buf->size) + len = buf->size; + + for (i = 0; i < len; i++) { + dest[i] = *p++; + /* Bounds check. */ + if (p == buf->end) { + p = buf->data; + } + } + + /* Update 'top' pointer */ + buf->top = p; + buf->size -= len; + + return len; +} + +int buf_push (circbuf_t * buf, const char *src, unsigned int len) +{ + /* NOTE: this function allows push to overwrite old data. */ + unsigned int i; + char *p = buf->tail; + + assert (buf != NULL); + assert (src != NULL); + + for (i = 0; i < len; i++) { + *p++ = src[i]; + if (p == buf->end) { + p = buf->data; + } + /* Make sure pushing too much data just replaces old data */ + if (buf->size < buf->totalsize) { + buf->size++; + } else { + buf->top++; + if (buf->top == buf->end) { + buf->top = buf->data; + } + } + } + + /* Update 'tail' pointer */ + buf->tail = p; + + return len; +} diff --git a/common/cmd_load.c b/common/cmd_load.c index 702cab6..b85db69 100644 --- a/common/cmd_load.c +++ b/common/cmd_load.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2000-2003 + * (C) Copyright 2000-2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this @@ -104,8 +104,8 @@ int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) * box some time (100 * 1 ms) */ for (i=0; i<100; ++i) { - if (serial_tstc()) { - (void) serial_getc(); + if (tstc()) { + (void) getc(); } udelay(1000); } @@ -220,9 +220,9 @@ read_record (char *buf, ulong len) --len; /* always leave room for terminating '\0' byte */ for (p=buf; p < buf+len; ++p) { - c = serial_getc(); /* read character */ + c = getc(); /* read character */ if (do_echo) - serial_putc (c); /* ... and echo it */ + putc (c); /* ... and echo it */ switch (c) { case '\r': @@ -237,7 +237,7 @@ read_record (char *buf, ulong len) } /* Check for the console hangup (if any different from serial) */ - if (gd->jt[XF_getc] != serial_getc) { + if (gd->jt[XF_getc] != getc) { if (ctrlc()) { return (-1); } @@ -387,7 +387,7 @@ write_record (char *buf) char c; while((c = *buf++)) - serial_putc(c); + putc(c); /* Check for the console hangup (if any different from serial) */ @@ -531,8 +531,8 @@ static ulong load_serial_bin (ulong offset) * box some time (100 * 1 ms) */ for (i=0; i<100; ++i) { - if (serial_tstc()) { - (void) serial_getc(); + if (tstc()) { + (void) getc(); } udelay(1000); } @@ -551,7 +551,7 @@ void send_pad (void) int count = his_pad_count; while (count-- > 0) - serial_putc (his_pad_char); + putc (his_pad_char); } /* converts escaped kermit char to binary char */ @@ -579,7 +579,7 @@ void s1_sendpacket (char *packet) { send_pad (); while (*packet) { - serial_putc (*packet++); + putc (*packet++); } } @@ -841,7 +841,7 @@ static int k_recv (void) /* get a packet */ /* wait for the starting character or ^C */ for (;;) { - switch (serial_getc ()) { + switch (getc ()) { case START_CHAR: /* start packet */ goto START; case ETX_CHAR: /* ^C waiting for packet */ @@ -853,13 +853,13 @@ static int k_recv (void) START: /* get length of packet */ sum = 0; - new_char = serial_getc (); + new_char = getc (); if ((new_char & 0xE0) == 0) goto packet_error; sum += new_char & 0xff; length = untochar (new_char); /* get sequence number */ - new_char = serial_getc (); + new_char = getc (); if ((new_char & 0xE0) == 0) goto packet_error; sum += new_char & 0xff; @@ -886,7 +886,7 @@ START: /* END NEW CODE */ /* get packet type */ - new_char = serial_getc (); + new_char = getc (); if ((new_char & 0xE0) == 0) goto packet_error; sum += new_char & 0xff; @@ -896,19 +896,19 @@ START: if (length == -2) { /* (length byte was 0, decremented twice) */ /* get the two length bytes */ - new_char = serial_getc (); + new_char = getc (); if ((new_char & 0xE0) == 0) goto packet_error; sum += new_char & 0xff; len_hi = untochar (new_char); - new_char = serial_getc (); + new_char = getc (); if ((new_char & 0xE0) == 0) goto packet_error; sum += new_char & 0xff; len_lo = untochar (new_char); length = len_hi * 95 + len_lo; /* check header checksum */ - new_char = serial_getc (); + new_char = getc (); if ((new_char & 0xE0) == 0) goto packet_error; if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f)) @@ -918,7 +918,7 @@ START: } /* bring in rest of packet */ while (length > 1) { - new_char = serial_getc (); + new_char = getc (); if ((new_char & 0xE0) == 0) goto packet_error; sum += new_char & 0xff; @@ -935,13 +935,13 @@ START: } } /* get and validate checksum character */ - new_char = serial_getc (); + new_char = getc (); if ((new_char & 0xE0) == 0) goto packet_error; if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f)) goto packet_error; /* get END_CHAR */ - new_char = serial_getc (); + new_char = getc (); if (new_char != END_CHAR) { packet_error: /* restore state machines */ diff --git a/common/devices.c b/common/devices.c index bf7486a..aa05533 100644 --- a/common/devices.c +++ b/common/devices.c @@ -194,6 +194,9 @@ int devices_init (void) drv_logbuff_init (); #endif drv_system_init (); +#ifdef CONFIG_USB_TTY + drv_usbtty_init (); +#endif return (0); } |