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path: root/target/linux/etrax/patches-2.6.29/600-fix_serial_cris.patch
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Diffstat (limited to 'target/linux/etrax/patches-2.6.29/600-fix_serial_cris.patch')
-rw-r--r--target/linux/etrax/patches-2.6.29/600-fix_serial_cris.patch265
1 files changed, 265 insertions, 0 deletions
diff --git a/target/linux/etrax/patches-2.6.29/600-fix_serial_cris.patch b/target/linux/etrax/patches-2.6.29/600-fix_serial_cris.patch
new file mode 100644
index 0000000000..7ac24a474b
--- /dev/null
+++ b/target/linux/etrax/patches-2.6.29/600-fix_serial_cris.patch
@@ -0,0 +1,265 @@
+Index: linux-2.6.28.9/drivers/serial/crisv10.c
+===================================================================
+--- linux-2.6.28.9.orig/drivers/serial/crisv10.c 2009-04-10 12:58:18.000000000 +0200
++++ linux-2.6.28.9/drivers/serial/crisv10.c 2009-04-10 12:58:22.000000000 +0200
+@@ -28,12 +28,15 @@
+ #include <linux/mutex.h>
+ #include <linux/bitops.h>
+ #include <linux/device.h>
++#include <linux/seq_file.h>
++#include <linux/delay.h>
++#include <linux/module.h>
++#include <linux/uaccess.h>
++#include <linux/io.h>
+
+-#include <asm/io.h>
+ #include <asm/irq.h>
+ #include <asm/dma.h>
+ #include <asm/system.h>
+-#include <linux/delay.h>
+
+ #include <arch/svinto.h>
+
+@@ -457,7 +460,6 @@
+
+ #define NR_PORTS (sizeof(rs_table)/sizeof(struct e100_serial))
+
+-static struct ktermios *serial_termios[NR_PORTS];
+ #ifdef CONFIG_ETRAX_SERIAL_FAST_TIMER
+ static struct fast_timer fast_timers[NR_PORTS];
+ #endif
+@@ -4221,151 +4223,132 @@
+ return 0;
+ }
+
++#ifdef CONFIG_PROC_FS
+ /*
+ * /proc fs routines....
+ */
+
+-static int line_info(char *buf, struct e100_serial *info)
++static void seq_line_info(struct seq_file *m, struct e100_serial *info)
+ {
+- char stat_buf[30];
+- int ret;
+ unsigned long tmp;
+
+- ret = sprintf(buf, "%d: uart:E100 port:%lX irq:%d",
+- info->line, (unsigned long)info->ioport, info->irq);
++ seq_printf(m, "%d: uart:E100 port:%lX irq:%d",
++ info->line, (unsigned long)info->ioport, info->irq);
+
+ if (!info->ioport || (info->type == PORT_UNKNOWN)) {
+- ret += sprintf(buf+ret, "\n");
+- return ret;
++ seq_printf(m, "\n");
++ return;
+ }
+
+- stat_buf[0] = 0;
+- stat_buf[1] = 0;
+- if (!E100_RTS_GET(info))
+- strcat(stat_buf, "|RTS");
+- if (!E100_CTS_GET(info))
+- strcat(stat_buf, "|CTS");
+- if (!E100_DTR_GET(info))
+- strcat(stat_buf, "|DTR");
+- if (!E100_DSR_GET(info))
+- strcat(stat_buf, "|DSR");
+- if (!E100_CD_GET(info))
+- strcat(stat_buf, "|CD");
+- if (!E100_RI_GET(info))
+- strcat(stat_buf, "|RI");
+-
+- ret += sprintf(buf+ret, " baud:%d", info->baud);
+-
+- ret += sprintf(buf+ret, " tx:%lu rx:%lu",
++ seq_printf(m, " baud:%d", info->baud);
++ seq_printf(m, " tx:%lu rx:%lu",
+ (unsigned long)info->icount.tx,
+ (unsigned long)info->icount.rx);
+ tmp = CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
+- if (tmp) {
+- ret += sprintf(buf+ret, " tx_pend:%lu/%lu",
+- (unsigned long)tmp,
+- (unsigned long)SERIAL_XMIT_SIZE);
+- }
+-
+- ret += sprintf(buf+ret, " rx_pend:%lu/%lu",
+- (unsigned long)info->recv_cnt,
+- (unsigned long)info->max_recv_cnt);
++ if (tmp)
++ seq_printf(m, " tx_pend:%lu/%lu",
++ (unsigned long)tmp,
++ (unsigned long)SERIAL_XMIT_SIZE);
++
++ seq_printf(m, " rx_pend:%lu/%lu",
++ (unsigned long)info->recv_cnt,
++ (unsigned long)info->max_recv_cnt);
+
+ #if 1
+ if (info->port.tty) {
+-
+ if (info->port.tty->stopped)
+- ret += sprintf(buf+ret, " stopped:%i",
+- (int)info->port.tty->stopped);
++ seq_printf(m, " stopped:%i",
++ (int)info->port.tty->stopped);
+ if (info->port.tty->hw_stopped)
+- ret += sprintf(buf+ret, " hw_stopped:%i",
+- (int)info->port.tty->hw_stopped);
++ seq_printf(m, " hw_stopped:%i",
++ (int)info->port.tty->hw_stopped);
+ }
+
+ {
+ unsigned char rstat = info->ioport[REG_STATUS];
+- if (rstat & IO_MASK(R_SERIAL0_STATUS, xoff_detect) )
+- ret += sprintf(buf+ret, " xoff_detect:1");
++ if (rstat & IO_MASK(R_SERIAL0_STATUS, xoff_detect))
++ seq_printf(m, " xoff_detect:1");
+ }
+
+ #endif
+
+-
+-
+-
+ if (info->icount.frame)
+- ret += sprintf(buf+ret, " fe:%lu",
+- (unsigned long)info->icount.frame);
++ seq_printf(m, " fe:%lu", (unsigned long)info->icount.frame);
+
+ if (info->icount.parity)
+- ret += sprintf(buf+ret, " pe:%lu",
+- (unsigned long)info->icount.parity);
++ seq_printf(m, " pe:%lu", (unsigned long)info->icount.parity);
+
+ if (info->icount.brk)
+- ret += sprintf(buf+ret, " brk:%lu",
+- (unsigned long)info->icount.brk);
++ seq_printf(m, " brk:%lu", (unsigned long)info->icount.brk);
+
+ if (info->icount.overrun)
+- ret += sprintf(buf+ret, " oe:%lu",
+- (unsigned long)info->icount.overrun);
++ seq_printf(m, " oe:%lu", (unsigned long)info->icount.overrun);
+
+ /*
+ * Last thing is the RS-232 status lines
+ */
+- ret += sprintf(buf+ret, " %s\n", stat_buf+1);
+- return ret;
++ if (!E100_RTS_GET(info))
++ seq_puts(m, "|RTS");
++ if (!E100_CTS_GET(info))
++ seq_puts(m, "|CTS");
++ if (!E100_DTR_GET(info))
++ seq_puts(m, "|DTR");
++ if (!E100_DSR_GET(info))
++ seq_puts(m, "|DSR");
++ if (!E100_CD_GET(info))
++ seq_puts(m, "|CD");
++ if (!E100_RI_GET(info))
++ seq_puts(m, "|RI");
++ seq_puts(m, "\n");
+ }
+
+-int rs_read_proc(char *page, char **start, off_t off, int count,
+- int *eof, void *data)
++
++static int crisv10_proc_show(struct seq_file *m, void *v)
+ {
+- int i, len = 0, l;
+- off_t begin = 0;
++ int i;
++
++ seq_printf(m, "serinfo:1.0 driver:%s\n", serial_version);
+
+- len += sprintf(page, "serinfo:1.0 driver:%s\n",
+- serial_version);
+- for (i = 0; i < NR_PORTS && len < 4000; i++) {
++ for (i = 0; i < NR_PORTS; i++) {
+ if (!rs_table[i].enabled)
+ continue;
+- l = line_info(page + len, &rs_table[i]);
+- len += l;
+- if (len+begin > off+count)
+- goto done;
+- if (len+begin < off) {
+- begin += len;
+- len = 0;
+- }
++ seq_line_info(m, &rs_table[i]);
+ }
+ #ifdef DEBUG_LOG_INCLUDED
+ for (i = 0; i < debug_log_pos; i++) {
+- len += sprintf(page + len, "%-4i %lu.%lu ", i, debug_log[i].time, timer_data_to_ns(debug_log[i].timer_data));
+- len += sprintf(page + len, debug_log[i].string, debug_log[i].value);
+- if (len+begin > off+count)
+- goto done;
+- if (len+begin < off) {
+- begin += len;
+- len = 0;
+- }
++ seq_printf(m, "%-4i %lu.%lu ",
++ i, debug_log[i].time,
++ timer_data_to_ns(debug_log[i].timer_data));
++ seq_printf(m, debug_log[i].string, debug_log[i].value);
+ }
+- len += sprintf(page + len, "debug_log %i/%i %li bytes\n",
+- i, DEBUG_LOG_SIZE, begin+len);
++ seq_printf(m, "debug_log %i/%i\n", i, DEBUG_LOG_SIZE);
+ debug_log_pos = 0;
+ #endif
++ return 0;
++}
+
+- *eof = 1;
+-done:
+- if (off >= len+begin)
+- return 0;
+- *start = page + (off-begin);
+- return ((count < begin+len-off) ? count : begin+len-off);
++static int crisv10_proc_open(struct inode *inode, struct file *file)
++{
++ return single_open(file, crisv10_proc_show, NULL);
+ }
+
++static const struct file_operations crisv10_proc_fops = {
++ .owner = THIS_MODULE,
++ .open = crisv10_proc_open,
++ .read = seq_read,
++ .llseek = seq_lseek,
++ .release = single_release,
++};
++#endif
++
++
+ /* Finally, routines used to initialize the serial driver. */
+
+-static void
+-show_serial_version(void)
++static void show_serial_version(void)
+ {
+ printk(KERN_INFO
+- "ETRAX 100LX serial-driver %s, (c) 2000-2004 Axis Communications AB\r\n",
++ "ETRAX 100LX serial-driver %s, "
++ "(c) 2000-2004 Axis Communications AB\r\n",
+ &serial_version[11]); /* "$Revision: x.yy" */
+ }
+
+@@ -4389,9 +4372,11 @@
+ .break_ctl = rs_break,
+ .send_xchar = rs_send_xchar,
+ .wait_until_sent = rs_wait_until_sent,
+- .read_proc = rs_read_proc,
+ .tiocmget = rs_tiocmget,
+- .tiocmset = rs_tiocmset
++ .tiocmset = rs_tiocmset,
++#ifdef CONFIG_PROC_FS
++ .proc_fops = &crisv10_proc_fops,
++#endif
+ };
+
+ static struct class *rs_class;
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