|
|
|
@ -1,9 +1,9 @@ |
|
|
|
|
diff -Nur linux-2.6.17/drivers/char/Kconfig linux-2.6.17-owrt/drivers/char/Kconfig
|
|
|
|
|
--- linux-2.6.17/drivers/char/Kconfig 2006-06-18 03:49:35.000000000 +0200
|
|
|
|
|
+++ linux-2.6.17-owrt/drivers/char/Kconfig 2006-06-18 12:41:36.000000000 +0200
|
|
|
|
|
@@ -340,6 +340,14 @@
|
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
|
|
|
module will be called istallion.
|
|
|
|
|
diff -Nur linux-2.6.21.1/drivers/char/Kconfig linux-2.6.21.1-owrt/drivers/char/Kconfig
|
|
|
|
|
--- linux-2.6.21.1/drivers/char/Kconfig 2007-04-27 23:49:26.000000000 +0200
|
|
|
|
|
+++ linux-2.6.21.1-owrt/drivers/char/Kconfig 2007-05-24 22:28:54.000000000 +0200
|
|
|
|
|
@@ -386,6 +386,14 @@
|
|
|
|
|
If you have an Alchemy AU1000 processor (MIPS based) and you want
|
|
|
|
|
to use a console on a serial port, say Y. Otherwise, say N.
|
|
|
|
|
|
|
|
|
|
+config SIBYTE_SB1250_DUART
|
|
|
|
|
+ bool "Support for BCM1xxx onchip DUART"
|
|
|
|
@ -13,24 +13,24 @@ diff -Nur linux-2.6.17/drivers/char/Kconfig linux-2.6.17-owrt/drivers/char/Kconf |
|
|
|
|
+ bool "Console on BCM1xxx DUART"
|
|
|
|
|
+ depends on SIBYTE_SB1250_DUART
|
|
|
|
|
+
|
|
|
|
|
config AU1000_UART
|
|
|
|
|
bool "Enable Au1000 UART Support"
|
|
|
|
|
depends on SERIAL_NONSTANDARD && MIPS
|
|
|
|
|
diff -Nur linux-2.6.17/drivers/char/Makefile linux-2.6.17-owrt/drivers/char/Makefile
|
|
|
|
|
--- linux-2.6.17/drivers/char/Makefile 2006-06-18 03:49:35.000000000 +0200
|
|
|
|
|
+++ linux-2.6.17-owrt/drivers/char/Makefile 2006-06-18 12:42:57.000000000 +0200
|
|
|
|
|
@@ -31,6 +31,7 @@
|
|
|
|
|
obj-$(CONFIG_A2232) += ser_a2232.o generic_serial.o
|
|
|
|
|
config SERIAL_DEC
|
|
|
|
|
bool "DECstation serial support"
|
|
|
|
|
depends on MACH_DECSTATION
|
|
|
|
|
diff -Nur linux-2.6.21.1/drivers/char/Makefile linux-2.6.21.1-owrt/drivers/char/Makefile
|
|
|
|
|
--- linux-2.6.21.1/drivers/char/Makefile 2007-04-27 23:49:26.000000000 +0200
|
|
|
|
|
+++ linux-2.6.21.1-owrt/drivers/char/Makefile 2007-05-24 22:32:31.000000000 +0200
|
|
|
|
|
@@ -32,6 +32,7 @@
|
|
|
|
|
obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o
|
|
|
|
|
obj-$(CONFIG_MOXA_SMARTIO) += mxser.o
|
|
|
|
|
obj-$(CONFIG_MOXA_SMARTIO_NEW) += mxser_new.o
|
|
|
|
|
+obj-$(CONFIG_SIBYTE_SB1250_DUART) += sb1250_duart.o
|
|
|
|
|
obj-$(CONFIG_COMPUTONE) += ip2/
|
|
|
|
|
obj-$(CONFIG_RISCOM8) += riscom8.o
|
|
|
|
|
obj-$(CONFIG_ISI) += isicom.o
|
|
|
|
|
diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/char/sb1250_duart.c
|
|
|
|
|
--- linux-2.6.17/drivers/char/sb1250_duart.c 1970-01-01 01:00:00.000000000 +0100
|
|
|
|
|
+++ linux-2.6.17-owrt/drivers/char/sb1250_duart.c 2006-06-18 12:41:36.000000000 +0200
|
|
|
|
|
@@ -0,0 +1,911 @@
|
|
|
|
|
diff -Nur linux-2.6.21.1/drivers/char/sb1250_duart.c linux-2.6.21.1-owrt/drivers/char/sb1250_duart.c
|
|
|
|
|
--- linux-2.6.21.1/drivers/char/sb1250_duart.c 1970-01-01 01:00:00.000000000 +0100
|
|
|
|
|
+++ linux-2.6.21.1-owrt/drivers/char/sb1250_duart.c 2007-05-24 22:10:12.000000000 +0200
|
|
|
|
|
@@ -0,0 +1,979 @@
|
|
|
|
|
+/*
|
|
|
|
|
+ * Copyright (C) 2000,2001,2002,2003,2004 Broadcom Corporation
|
|
|
|
|
+ *
|
|
|
|
@ -43,18 +43,17 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ * 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.
|
|
|
|
|
+ */
|
|
|
|
|
+
|
|
|
|
|
+/*
|
|
|
|
|
+/*
|
|
|
|
|
+ * Driver support for the on-chip sb1250 dual-channel serial port,
|
|
|
|
|
+ * running in asynchronous mode. Also, support for doing a serial console
|
|
|
|
|
+ * on one of those ports
|
|
|
|
|
+ * on one of those ports
|
|
|
|
|
+ */
|
|
|
|
|
+#include <linux/autoconf.h>
|
|
|
|
|
+#include <linux/types.h>
|
|
|
|
|
+#include <linux/kernel.h>
|
|
|
|
|
+#include <linux/serial.h>
|
|
|
|
@ -115,69 +114,71 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+EXPORT_SYMBOL(sb1250_duart_present);
|
|
|
|
|
+
|
|
|
|
|
+/*
|
|
|
|
|
+ * Still not sure what the termios structures set up here are for,
|
|
|
|
|
+ * In bug 1956, we get glitches that can mess up uart registers. This
|
|
|
|
|
+ * "read-mode-reg after any register access" is an accepted workaround.
|
|
|
|
|
+ */
|
|
|
|
|
+#if SIBYTE_1956_WAR
|
|
|
|
|
+# define SB1_SER1956_WAR { \
|
|
|
|
|
+ u32 ignore; \
|
|
|
|
|
+ ignore = csr_in32(uart_states[line].mode_1); \
|
|
|
|
|
+ ignore = csr_in32(uart_states[line].mode_2); \
|
|
|
|
|
+ }
|
|
|
|
|
+#else
|
|
|
|
|
+# define SB1_SER1956_WAR
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+/*
|
|
|
|
|
+ * Still not sure what the termios structures set up here are for,
|
|
|
|
|
+ * but we have to supply pointers to them to register the tty driver
|
|
|
|
|
+ */
|
|
|
|
|
+static struct tty_driver *sb1250_duart_driver; //, sb1250_duart_callout_driver;
|
|
|
|
|
+
|
|
|
|
|
+/*
|
|
|
|
|
+ * This lock protects both the open flags for all the uart states as
|
|
|
|
|
+ * This lock protects both the open flags for all the uart states as
|
|
|
|
|
+ * well as the reference count for the module
|
|
|
|
|
+ */
|
|
|
|
|
+static DEFINE_SPINLOCK(open_lock);
|
|
|
|
|
+
|
|
|
|
|
+typedef struct {
|
|
|
|
|
+ unsigned char outp_buf[SERIAL_XMIT_SIZE];
|
|
|
|
|
+ unsigned int outp_head;
|
|
|
|
|
+ unsigned int outp_tail;
|
|
|
|
|
+ unsigned int outp_count;
|
|
|
|
|
+ spinlock_t outp_lock;
|
|
|
|
|
+ unsigned int open;
|
|
|
|
|
+ unsigned int line;
|
|
|
|
|
+ unsigned int last_cflags;
|
|
|
|
|
+ unsigned long flags;
|
|
|
|
|
+ struct tty_struct *tty;
|
|
|
|
|
+typedef struct {
|
|
|
|
|
+ unsigned char outp_buf[SERIAL_XMIT_SIZE];
|
|
|
|
|
+ unsigned int outp_head;
|
|
|
|
|
+ unsigned int outp_tail;
|
|
|
|
|
+ unsigned int outp_count;
|
|
|
|
|
+ spinlock_t outp_lock;
|
|
|
|
|
+ unsigned int open;
|
|
|
|
|
+ unsigned int line;
|
|
|
|
|
+ unsigned int last_cflags;
|
|
|
|
|
+ unsigned long flags;
|
|
|
|
|
+ struct tty_struct *tty;
|
|
|
|
|
+
|
|
|
|
|
+ /* CSR addresses */
|
|
|
|
|
+ volatile u32 *status;
|
|
|
|
|
+ volatile u32 *imr;
|
|
|
|
|
+ volatile u32 *tx_hold;
|
|
|
|
|
+ volatile u32 *rx_hold;
|
|
|
|
|
+ volatile u32 *mode_1;
|
|
|
|
|
+ volatile u32 *mode_2;
|
|
|
|
|
+ volatile u32 *clk_sel;
|
|
|
|
|
+ volatile u32 *cmd;
|
|
|
|
|
+ unsigned int *status;
|
|
|
|
|
+ unsigned int *imr;
|
|
|
|
|
+ unsigned int *tx_hold;
|
|
|
|
|
+ unsigned int *rx_hold;
|
|
|
|
|
+ unsigned int *mode_1;
|
|
|
|
|
+ unsigned int *mode_2;
|
|
|
|
|
+ unsigned int *clk_sel;
|
|
|
|
|
+ unsigned int *cmd;
|
|
|
|
|
+} uart_state_t;
|
|
|
|
|
+
|
|
|
|
|
+static uart_state_t uart_states[DUART_MAX_LINE];
|
|
|
|
|
+
|
|
|
|
|
+/*
|
|
|
|
|
+ * Inline functions local to this module
|
|
|
|
|
+ * Inline functions local to this module
|
|
|
|
|
+ */
|
|
|
|
|
+
|
|
|
|
|
+/*
|
|
|
|
|
+ * In bug 1956, we get glitches that can mess up uart registers. This
|
|
|
|
|
+ * "write-mode-1 after any register access" is the accepted
|
|
|
|
|
+ * workaround.
|
|
|
|
|
+ */
|
|
|
|
|
+#if SIBYTE_1956_WAR
|
|
|
|
|
+static unsigned int last_mode1[DUART_MAX_LINE];
|
|
|
|
|
+#endif
|
|
|
|
|
+
|
|
|
|
|
+static inline u32 READ_SERCSR(volatile u32 *addr, int line)
|
|
|
|
|
+{
|
|
|
|
|
+ u32 val = csr_in32(addr);
|
|
|
|
|
+#if SIBYTE_1956_WAR
|
|
|
|
|
+ csr_out32(last_mode1[line], uart_states[line].mode_1);
|
|
|
|
|
+#endif
|
|
|
|
|
+ SB1_SER1956_WAR;
|
|
|
|
|
+ return val;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+static inline void WRITE_SERCSR(u32 val, volatile u32 *addr, int line)
|
|
|
|
|
+{
|
|
|
|
|
+ csr_out32(val, addr);
|
|
|
|
|
+#if SIBYTE_1956_WAR
|
|
|
|
|
+ csr_out32(last_mode1[line], uart_states[line].mode_1);
|
|
|
|
|
+#endif
|
|
|
|
|
+ SB1_SER1956_WAR;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+static void init_duart_port(uart_state_t *port, int line)
|
|
|
|
@ -192,6 +193,8 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ port->mode_2 = IOADDR(UNIT_CHANREG(line, R_DUART_MODE_REG_2));
|
|
|
|
|
+ port->clk_sel = IOADDR(UNIT_CHANREG(line, R_DUART_CLK_SEL));
|
|
|
|
|
+ port->cmd = IOADDR(UNIT_CHANREG(line, R_DUART_CMD));
|
|
|
|
|
+ port->last_cflags = DEFAULT_CFLAGS;
|
|
|
|
|
+ spin_lock_init(&port->outp_lock);
|
|
|
|
|
+ port->flags |= DUART_INITIALIZED;
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
@ -207,7 +210,7 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ WRITE_SERCSR(tmp & ~mask, port->imr, line);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+/* Unmask the passed interrupt lines at the duart level */
|
|
|
|
|
+static inline void duart_unmask_ints(unsigned int line, unsigned int mask)
|
|
|
|
|
+{
|
|
|
|
@ -247,7 +250,7 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ duart_mask_ints(us->line, M_DUART_IMR_TX);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ if (us->open &&
|
|
|
|
|
+ if (us->open &&
|
|
|
|
|
+ (us->outp_count < (SERIAL_XMIT_SIZE/2))) {
|
|
|
|
|
+ /*
|
|
|
|
|
+ * We told the discipline at one point that we had no
|
|
|
|
@ -261,10 +264,10 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/*
|
|
|
|
|
+/*
|
|
|
|
|
+ * Generic interrupt handler for both channels. dev_id is a pointer
|
|
|
|
|
+ * to the proper uart_states structure, so from that we can derive
|
|
|
|
|
+ * which port interrupted
|
|
|
|
|
+ * to the proper uart_states structure, so from that we can derive
|
|
|
|
|
+ * which port interrupted
|
|
|
|
|
+ */
|
|
|
|
|
+
|
|
|
|
|
+static irqreturn_t duart_int(int irq, void *dev_id)
|
|
|
|
@ -324,10 +327,10 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+
|
|
|
|
|
+/* memcpy the data from src to destination, but take extra care if the
|
|
|
|
|
+ data is coming from user space */
|
|
|
|
|
+static inline int copy_buf(char *dest, const char *src, int size, int from_user)
|
|
|
|
|
+static inline int copy_buf(char *dest, const char *src, int size, int from_user)
|
|
|
|
|
+{
|
|
|
|
|
+ if (from_user) {
|
|
|
|
|
+ (void) copy_from_user(dest, src, size);
|
|
|
|
|
+ (void) copy_from_user(dest, src, size);
|
|
|
|
|
+ } else {
|
|
|
|
|
+ memcpy(dest, src, size);
|
|
|
|
|
+ }
|
|
|
|
@ -350,7 +353,8 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ us = tty->driver_data;
|
|
|
|
|
+ if (!us) return 0;
|
|
|
|
|
+
|
|
|
|
|
+ pr_debug("duart_write called for %i chars by %i (%s)\n", count, current->pid, current->comm);
|
|
|
|
|
+ pr_debug("duart_write called for %i chars by %i (%s)\n", count,
|
|
|
|
|
+ current->pid, current->comm);
|
|
|
|
|
+
|
|
|
|
|
+ spin_lock_irqsave(&us->outp_lock, flags);
|
|
|
|
|
+
|
|
|
|
@ -376,7 +380,7 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+
|
|
|
|
|
+ spin_unlock_irqrestore(&us->outp_lock, flags);
|
|
|
|
|
+
|
|
|
|
|
+ if (us->outp_count && !tty->stopped &&
|
|
|
|
|
+ if (us->outp_count && !tty->stopped &&
|
|
|
|
|
+ !tty->hw_stopped && !(us->flags & TX_INTEN)) {
|
|
|
|
|
+ us->flags |= TX_INTEN;
|
|
|
|
|
+ duart_unmask_ints(us->line, M_DUART_IMR_TX);
|
|
|
|
@ -413,11 +417,13 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+{
|
|
|
|
|
+ uart_state_t *port;
|
|
|
|
|
+
|
|
|
|
|
+ if (!tty) return;
|
|
|
|
|
+ if (!tty)
|
|
|
|
|
+ return;
|
|
|
|
|
+
|
|
|
|
|
+ port = tty->driver_data;
|
|
|
|
|
+
|
|
|
|
|
+ if (!port) return;
|
|
|
|
|
+ if (!port)
|
|
|
|
|
+ return;
|
|
|
|
|
+
|
|
|
|
|
+ if (port->outp_count <= 0 || tty->stopped || tty->hw_stopped) {
|
|
|
|
|
+ return;
|
|
|
|
@ -427,7 +433,7 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ duart_unmask_ints(port->line, M_DUART_IMR_TX);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Return the number of characters in the output buffer that have yet to be
|
|
|
|
|
+/* Return the number of characters in the output buffer that have yet to be
|
|
|
|
|
+ written */
|
|
|
|
|
+static int duart_chars_in_buffer(struct tty_struct *tty)
|
|
|
|
|
+{
|
|
|
|
@ -470,10 +476,10 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ switch (cflag & CSIZE) {
|
|
|
|
|
+ case CS7:
|
|
|
|
|
+ mode_reg1 |= V_DUART_BITS_PER_CHAR_7;
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+ default:
|
|
|
|
|
+ /* We don't handle CS5 or CS6...is there a way we're supposed to flag this?
|
|
|
|
|
+ right now we just force them to CS8 */
|
|
|
|
|
+ /* We don't handle CS5 or CS6...is there a way we're supposed to
|
|
|
|
|
+ * flag this? right now we just force them to CS8 */
|
|
|
|
|
+ mode_reg1 |= 0x0;
|
|
|
|
|
+ break;
|
|
|
|
|
+ }
|
|
|
|
@ -486,21 +492,21 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ if (cflag & PARODD) {
|
|
|
|
|
+ mode_reg1 |= M_DUART_PARITY_TYPE_ODD;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+ /* Formula for this is (5000000/baud)-1, but we saturate
|
|
|
|
|
+ at 12 bits, which means we can't actually do anything less
|
|
|
|
|
+ that 1200 baud */
|
|
|
|
|
+ switch (cflag & CBAUD) {
|
|
|
|
|
+ case B200:
|
|
|
|
|
+ case B300:
|
|
|
|
|
+ case B200:
|
|
|
|
|
+ case B300:
|
|
|
|
|
+ case B1200: clk_divisor = 4095; break;
|
|
|
|
|
+ case B1800: clk_divisor = 2776; break;
|
|
|
|
|
+ case B2400: clk_divisor = 2082; break;
|
|
|
|
|
+ case B4800: clk_divisor = 1040; break;
|
|
|
|
|
+ default:
|
|
|
|
|
+ case B9600: clk_divisor = 519; break;
|
|
|
|
|
+ case B19200: clk_divisor = 259; break;
|
|
|
|
|
+ case B38400: clk_divisor = 129; break;
|
|
|
|
|
+ default:
|
|
|
|
|
+ case B57600: clk_divisor = 85; break;
|
|
|
|
|
+ case B115200: clk_divisor = 42; break;
|
|
|
|
|
+ }
|
|
|
|
@ -516,25 +522,26 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+{
|
|
|
|
|
+ uart_state_t *us = (uart_state_t *) tty->driver_data;
|
|
|
|
|
+
|
|
|
|
|
+ pr_debug("duart_set_termios called by %i (%s)\n", current->pid, current->comm);
|
|
|
|
|
+ pr_debug("duart_set_termios called by %i (%s)\n", current->pid,
|
|
|
|
|
+ current->comm);
|
|
|
|
|
+ if (old && tty->termios->c_cflag == old->c_cflag)
|
|
|
|
|
+ return;
|
|
|
|
|
+ duart_set_cflag(us->line, tty->termios->c_cflag);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+static int get_serial_info(uart_state_t *us, struct serial_struct * retinfo) {
|
|
|
|
|
+
|
|
|
|
|
+static int get_serial_info(uart_state_t *us, struct serial_struct * retinfo)
|
|
|
|
|
+{
|
|
|
|
|
+ struct serial_struct tmp;
|
|
|
|
|
+
|
|
|
|
|
+ memset(&tmp, 0, sizeof(tmp));
|
|
|
|
|
+
|
|
|
|
|
+ tmp.type=PORT_SB1250;
|
|
|
|
|
+ tmp.line=us->line;
|
|
|
|
|
+ tmp.port=UNIT_CHANREG(tmp.line,0);
|
|
|
|
|
+ tmp.irq=UNIT_INT(tmp.line);
|
|
|
|
|
+ tmp.xmit_fifo_size=16; /* fixed by hw */
|
|
|
|
|
+ tmp.baud_base=5000000;
|
|
|
|
|
+ tmp.io_type=SERIAL_IO_MEM;
|
|
|
|
|
+ tmp.type = PORT_SB1250;
|
|
|
|
|
+ tmp.line = us->line;
|
|
|
|
|
+ tmp.port = UNIT_CHANREG(tmp.line,0);
|
|
|
|
|
+ tmp.irq = UNIT_INT(tmp.line);
|
|
|
|
|
+ tmp.xmit_fifo_size = 16; /* fixed by hw */
|
|
|
|
|
+ tmp.baud_base = 5000000;
|
|
|
|
|
+ tmp.io_type = SERIAL_IO_MEM;
|
|
|
|
|
+
|
|
|
|
|
+ if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
|
|
|
|
|
+ return -EFAULT;
|
|
|
|
@ -622,10 +629,10 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/* Not sure on the semantics of this; are we supposed to wait until the stuff
|
|
|
|
|
+ already in the hardware FIFO drains, or are we supposed to wait until
|
|
|
|
|
+ we've drained the output buffer, too? I'm assuming the former, 'cause thats
|
|
|
|
|
+ what the other drivers seem to assume
|
|
|
|
|
+*/
|
|
|
|
|
+ * already in the hardware FIFO drains, or are we supposed to wait until
|
|
|
|
|
+ * we've drained the output buffer, too? I'm assuming the former, 'cause thats
|
|
|
|
|
+ * what the other drivers seem to assume
|
|
|
|
|
+ */
|
|
|
|
|
+
|
|
|
|
|
+static void duart_wait_until_sent(struct tty_struct *tty, int timeout)
|
|
|
|
|
+{
|
|
|
|
@ -636,7 +643,7 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ pr_debug("duart_wait_until_sent(%d)+\n", timeout);
|
|
|
|
|
+ while (!(READ_SERCSR(us->status, us->line) & M_DUART_TX_EMT)) {
|
|
|
|
|
+ set_current_state(TASK_INTERRUPTIBLE);
|
|
|
|
|
+ schedule_timeout(1);
|
|
|
|
|
+ schedule_timeout(1);
|
|
|
|
|
+ if (signal_pending(current))
|
|
|
|
|
+ break;
|
|
|
|
|
+ if (timeout && time_after(jiffies, orig_jiffies + timeout))
|
|
|
|
@ -672,8 +679,8 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ return -ENODEV;
|
|
|
|
|
+
|
|
|
|
|
+ pr_debug("duart_open called by %i (%s), tty is %p, rw is %p, ww is %p\n",
|
|
|
|
|
+ current->pid, current->comm, tty, tty->read_wait,
|
|
|
|
|
+ tty->write_wait);
|
|
|
|
|
+ current->pid, current->comm, tty, (void *)&tty->read_wait,
|
|
|
|
|
+ (void *)&tty->write_wait);
|
|
|
|
|
+
|
|
|
|
|
+ us = uart_states + line;
|
|
|
|
|
+ tty->driver_data = us;
|
|
|
|
@ -784,7 +791,7 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+
|
|
|
|
|
+/* Set up the driver and register it, register the UART interrupts. This
|
|
|
|
|
+ is called from tty_init, or as a part of the module init */
|
|
|
|
|
+static int __init sb1250_duart_init(void)
|
|
|
|
|
+static int __init sb1250_duart_init(void)
|
|
|
|
|
+{
|
|
|
|
|
+ int i;
|
|
|
|
|
+
|
|
|
|
@ -796,7 +803,6 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+
|
|
|
|
|
+ sb1250_duart_driver->owner = THIS_MODULE;
|
|
|
|
|
+ sb1250_duart_driver->name = "duart";
|
|
|
|
|
+ sb1250_duart_driver->devfs_name = "duart/";
|
|
|
|
|
+ sb1250_duart_driver->major = TTY_MAJOR;
|
|
|
|
|
+ sb1250_duart_driver->minor_start = SB1250_DUART_MINOR_BASE;
|
|
|
|
|
+ sb1250_duart_driver->type = TTY_DRIVER_TYPE_SERIAL;
|
|
|
|
@ -805,21 +811,29 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ sb1250_duart_driver->flags = TTY_DRIVER_REAL_RAW;
|
|
|
|
|
+ tty_set_operations(sb1250_duart_driver, &duart_ops);
|
|
|
|
|
+
|
|
|
|
|
+ for (i=0; i<DUART_MAX_LINE; i++) {
|
|
|
|
|
+ for (i = 0; i < DUART_MAX_LINE; i++) {
|
|
|
|
|
+ uart_state_t *port = uart_states + i;
|
|
|
|
|
+
|
|
|
|
|
+ if (!sb1250_duart_present[i])
|
|
|
|
|
+ continue;
|
|
|
|
|
+
|
|
|
|
|
+ init_duart_port(port, i);
|
|
|
|
|
+ spin_lock_init(&port->outp_lock);
|
|
|
|
|
+ duart_mask_ints(i, M_DUART_IMR_ALL);
|
|
|
|
|
+ if (request_irq(UNIT_INT(i), duart_int, 0, "uart", port)) {
|
|
|
|
|
+ panic("Couldn't get uart0 interrupt line");
|
|
|
|
|
+ }
|
|
|
|
|
+ __raw_writeq(M_DUART_RX_EN|M_DUART_TX_EN,
|
|
|
|
|
+ IOADDR(UNIT_CHANREG(i, R_DUART_CMD)));
|
|
|
|
|
+ duart_set_cflag(i, DEFAULT_CFLAGS);
|
|
|
|
|
+ /*
|
|
|
|
|
+ * this generic write to a register does not implement the 1956
|
|
|
|
|
+ * WAR and sometimes output gets corrupted afterwards,
|
|
|
|
|
+ * especially if the port was in use as a console.
|
|
|
|
|
+ */
|
|
|
|
|
+ __raw_writel(M_DUART_RX_EN|M_DUART_TX_EN, port->cmd);
|
|
|
|
|
+
|
|
|
|
|
+ /*
|
|
|
|
|
+ * we should really check to see if it's registered as a console
|
|
|
|
|
+ * before trashing those settings
|
|
|
|
|
+ */
|
|
|
|
|
+ duart_set_cflag(i, port->last_cflags);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ /* Interrupts are now active, our ISR can be called. */
|
|
|
|
@ -842,7 +856,7 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ tty_unregister_driver(sb1250_duart_driver);
|
|
|
|
|
+ put_tty_driver(sb1250_duart_driver);
|
|
|
|
|
+
|
|
|
|
|
+ for (i=0; i<DUART_MAX_LINE; i++) {
|
|
|
|
|
+ for (i = 0; i < DUART_MAX_LINE; i++) {
|
|
|
|
|
+ if (!sb1250_duart_present[i])
|
|
|
|
|
+ continue;
|
|
|
|
|
+ free_irq(UNIT_INT(i), &uart_states[i]);
|
|
|
|
@ -886,7 +900,7 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+ if (*s == '\n')
|
|
|
|
|
+ serial_outc('\r', line);
|
|
|
|
|
+ serial_outc(*s++, line);
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+ WRITE_SERCSR(imr, port->imr, line);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
@ -902,25 +916,78 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+
|
|
|
|
|
+ sb1250_duart_init_present_lines();
|
|
|
|
|
+
|
|
|
|
|
+ for (i=0; i<DUART_MAX_LINE; i++) {
|
|
|
|
|
+ for (i = 0; i < DUART_MAX_LINE; i++) {
|
|
|
|
|
+ uart_state_t *port = uart_states + i;
|
|
|
|
|
+ u32 cflags = DEFAULT_CFLAGS;
|
|
|
|
|
+
|
|
|
|
|
+ if (!sb1250_duart_present[i])
|
|
|
|
|
+ continue;
|
|
|
|
|
+
|
|
|
|
|
+ init_duart_port(port, i);
|
|
|
|
|
+#if SIBYTE_1956_WAR
|
|
|
|
|
+ last_mode1[i] = V_DUART_PARITY_MODE_NONE|V_DUART_BITS_PER_CHAR_8;
|
|
|
|
|
+#endif
|
|
|
|
|
+ WRITE_SERCSR(V_DUART_PARITY_MODE_NONE|V_DUART_BITS_PER_CHAR_8,
|
|
|
|
|
+ port->mode_1, i);
|
|
|
|
|
+ WRITE_SERCSR(M_DUART_STOP_BIT_LEN_1,
|
|
|
|
|
+ port->mode_2, i);
|
|
|
|
|
+ WRITE_SERCSR(V_DUART_BAUD_RATE(115200),
|
|
|
|
|
+ port->clk_sel, i);
|
|
|
|
|
+ WRITE_SERCSR(M_DUART_RX_EN|M_DUART_TX_EN,
|
|
|
|
|
+ port->cmd, i);
|
|
|
|
|
+ if (str) {
|
|
|
|
|
+ int speed;
|
|
|
|
|
+ char par = 'n';
|
|
|
|
|
+ int cbits = 8;
|
|
|
|
|
+
|
|
|
|
|
+ cflags = 0;
|
|
|
|
|
+
|
|
|
|
|
+ /*
|
|
|
|
|
+ * format is in Documentation/serial_console.txt
|
|
|
|
|
+ */
|
|
|
|
|
+ sscanf(str, "%d%c%d", &speed, &par, &cbits);
|
|
|
|
|
+
|
|
|
|
|
+ switch (speed) {
|
|
|
|
|
+ case 200:
|
|
|
|
|
+ case 300:
|
|
|
|
|
+ case 1200:
|
|
|
|
|
+ cflags |= B1200;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 1800:
|
|
|
|
|
+ cflags |= B1800;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 2400:
|
|
|
|
|
+ cflags |= B2400;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 4800:
|
|
|
|
|
+ cflags |= B4800;
|
|
|
|
|
+ break;
|
|
|
|
|
+ default:
|
|
|
|
|
+ case 9600:
|
|
|
|
|
+ cflags |= B9600;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 19200:
|
|
|
|
|
+ cflags |= B19200;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 38400:
|
|
|
|
|
+ cflags |= B38400;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 57600:
|
|
|
|
|
+ cflags |= B57600;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 115200:
|
|
|
|
|
+ cflags |= B115200;
|
|
|
|
|
+ break;
|
|
|
|
|
+ }
|
|
|
|
|
+ switch (par) {
|
|
|
|
|
+ case 'o':
|
|
|
|
|
+ cflags |= PARODD;
|
|
|
|
|
+ case 'e':
|
|
|
|
|
+ cflags |= PARENB;
|
|
|
|
|
+ }
|
|
|
|
|
+ switch (cbits) {
|
|
|
|
|
+ default: // we only do 7 or 8
|
|
|
|
|
+ case 8:
|
|
|
|
|
+ cflags |= CS8;
|
|
|
|
|
+ break;
|
|
|
|
|
+ case 7:
|
|
|
|
|
+ cflags |= CS7;
|
|
|
|
|
+ break;
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+ duart_set_cflag(i, cflags);
|
|
|
|
|
+ WRITE_SERCSR(M_DUART_RX_EN | M_DUART_TX_EN, port->cmd, i);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
@ -935,6 +1002,7 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+
|
|
|
|
|
+static int __init sb1250_serial_console_init(void)
|
|
|
|
|
+{
|
|
|
|
|
+ //add_preferred_console("duart", 0, "57600n8");
|
|
|
|
|
+ register_console(&sb1250_ser_cons);
|
|
|
|
|
+ return 0;
|
|
|
|
|
+}
|
|
|
|
@ -942,9 +1010,9 @@ diff -Nur linux-2.6.17/drivers/char/sb1250_duart.c linux-2.6.17-owrt/drivers/cha |
|
|
|
|
+console_initcall(sb1250_serial_console_init);
|
|
|
|
|
+
|
|
|
|
|
+#endif /* CONFIG_SIBYTE_SB1250_DUART_CONSOLE */
|
|
|
|
|
diff -Nur linux-2.6.17/include/linux/serial.h linux-2.6.17-owrt/include/linux/serial.h
|
|
|
|
|
--- linux-2.6.17/include/linux/serial.h 2006-06-18 03:49:35.000000000 +0200
|
|
|
|
|
+++ linux-2.6.17-owrt/include/linux/serial.h 2006-06-18 12:41:36.000000000 +0200
|
|
|
|
|
diff -Nur linux-2.6.21.1/include/linux/serial.h linux-2.6.21.1-owrt/include/linux/serial.h
|
|
|
|
|
--- linux-2.6.21.1/include/linux/serial.h 2007-04-27 23:49:26.000000000 +0200
|
|
|
|
|
+++ linux-2.6.21.1-owrt/include/linux/serial.h 2007-05-24 22:10:29.000000000 +0200
|
|
|
|
|
@@ -76,7 +76,8 @@
|
|
|
|
|
#define PORT_16654 11
|
|
|
|
|
#define PORT_16850 12
|
|
|
|
|