summaryrefslogtreecommitdiffstats
path: root/drivers/serial
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/68328serial.c8
-rw-r--r--drivers/serial/8250.c21
-rw-r--r--drivers/serial/8250_pci.c31
-rw-r--r--drivers/serial/Kconfig53
-rw-r--r--drivers/serial/atmel_serial.c22
-rw-r--r--drivers/serial/bcm63xx_uart.c7
-rw-r--r--drivers/serial/bfin_5xx.c22
-rw-r--r--drivers/serial/bfin_sport_uart.c701
-rw-r--r--drivers/serial/bfin_sport_uart.h38
-rw-r--r--drivers/serial/icom.c5
-rw-r--r--drivers/serial/imx.c6
-rw-r--r--drivers/serial/ioc3_serial.c3
-rw-r--r--drivers/serial/jsm/jsm_driver.c1
-rw-r--r--drivers/serial/jsm/jsm_tty.c9
-rw-r--r--drivers/serial/msm_serial.c6
-rw-r--r--drivers/serial/timbuart.c7
16 files changed, 613 insertions, 327 deletions
diff --git a/drivers/serial/68328serial.c b/drivers/serial/68328serial.c
index d935b2d04f9..ae0251ef6f4 100644
--- a/drivers/serial/68328serial.c
+++ b/drivers/serial/68328serial.c
@@ -153,8 +153,6 @@ static int baud_table[] = {
0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
9600, 19200, 38400, 57600, 115200, 0 };
-#define BAUD_TABLE_SIZE (sizeof(baud_table)/sizeof(baud_table[0]))
-
/* Sets or clears DTR/RTS on the requested line */
static inline void m68k_rtsdtr(struct m68k_serial *ss, int set)
{
@@ -1406,10 +1404,10 @@ static void m68328_set_baud(void)
USTCNT = ustcnt & ~USTCNT_TXEN;
again:
- for (i = 0; i < sizeof(baud_table) / sizeof(baud_table[0]); i++)
+ for (i = 0; i < ARRAY_SIZE(baud_table); i++)
if (baud_table[i] == m68328_console_baud)
break;
- if (i >= sizeof(baud_table) / sizeof(baud_table[0])) {
+ if (i >= ARRAY_SIZE(baud_table)) {
m68328_console_baud = 9600;
goto again;
}
@@ -1435,7 +1433,7 @@ int m68328_console_setup(struct console *cp, char *arg)
if (arg)
n = simple_strtoul(arg,NULL,0);
- for (i = 0; i < BAUD_TABLE_SIZE; i++)
+ for (i = 0; i < ARRAY_SIZE(baud_table); i++)
if (baud_table[i] == n)
break;
if (i < BAUD_TABLE_SIZE) {
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index a81ff7bc5fa..7c4ebe6ee18 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2690,6 +2690,15 @@ static void __init serial8250_isa_init_ports(void)
}
}
+static void
+serial8250_init_fixed_type_port(struct uart_8250_port *up, unsigned int type)
+{
+ up->port.type = type;
+ up->port.fifosize = uart_config[type].fifo_size;
+ up->capabilities = uart_config[type].flags;
+ up->tx_loadsz = uart_config[type].tx_loadsz;
+}
+
static void __init
serial8250_register_ports(struct uart_driver *drv, struct device *dev)
{
@@ -2706,6 +2715,10 @@ serial8250_register_ports(struct uart_driver *drv, struct device *dev)
struct uart_8250_port *up = &serial8250_ports[i];
up->port.dev = dev;
+
+ if (up->port.flags & UPF_FIXED_TYPE)
+ serial8250_init_fixed_type_port(up, up->port.type);
+
uart_add_one_port(drv, &up->port);
}
}
@@ -3118,12 +3131,8 @@ int serial8250_register_port(struct uart_port *port)
if (port->dev)
uart->port.dev = port->dev;
- if (port->flags & UPF_FIXED_TYPE) {
- uart->port.type = port->type;
- uart->port.fifosize = uart_config[port->type].fifo_size;
- uart->capabilities = uart_config[port->type].flags;
- uart->tx_loadsz = uart_config[port->type].tx_loadsz;
- }
+ if (port->flags & UPF_FIXED_TYPE)
+ serial8250_init_fixed_type_port(uart, port->type);
set_io_from_upio(&uart->port);
/* Possibly override default I/O functions. */
diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index b28af13c45a..01c012da4e2 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -760,7 +760,8 @@ static int pci_netmos_init(struct pci_dev *dev)
/* subdevice 0x00PS means <P> parallel, <S> serial */
unsigned int num_serial = dev->subsystem_device & 0xf;
- if (dev->device == PCI_DEVICE_ID_NETMOS_9901)
+ if ((dev->device == PCI_DEVICE_ID_NETMOS_9901) ||
+ (dev->device == PCI_DEVICE_ID_NETMOS_9865))
return 0;
if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
dev->subsystem_device == 0x0299)
@@ -1479,6 +1480,7 @@ enum pci_board_num_t {
pbn_b0_bt_1_115200,
pbn_b0_bt_2_115200,
+ pbn_b0_bt_4_115200,
pbn_b0_bt_8_115200,
pbn_b0_bt_1_460800,
@@ -1703,6 +1705,12 @@ static struct pciserial_board pci_boards[] __devinitdata = {
.base_baud = 115200,
.uart_offset = 8,
},
+ [pbn_b0_bt_4_115200] = {
+ .flags = FL_BASE0|FL_BASE_BARS,
+ .num_ports = 4,
+ .base_baud = 115200,
+ .uart_offset = 8,
+ },
[pbn_b0_bt_8_115200] = {
.flags = FL_BASE0|FL_BASE_BARS,
.num_ports = 8,
@@ -3191,6 +3199,15 @@ static struct pci_device_id serial_pci_tbl[] = {
0x1208, 0x0004, 0, 0,
pbn_b0_4_921600 },
+ { PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF2,
+ 0x1204, 0x0004, 0, 0,
+ pbn_b0_4_921600 },
+ { PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF2,
+ 0x1208, 0x0004, 0, 0,
+ pbn_b0_4_921600 },
+ { PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF3,
+ 0x1208, 0x0004, 0, 0,
+ pbn_b0_4_921600 },
/*
* Dell Remote Access Card 4 - Tim_T_Murphy@Dell.com
*/
@@ -3649,6 +3666,18 @@ static struct pci_device_id serial_pci_tbl[] = {
0, 0, pbn_b0_1_115200 },
/*
+ * Best Connectivity PCI Multi I/O cards
+ */
+
+ { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9865,
+ 0xA000, 0x1000,
+ 0, 0, pbn_b0_1_115200 },
+
+ { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9865,
+ 0xA000, 0x3004,
+ 0, 0, pbn_b0_bt_4_115200 },
+
+ /*
* These entries match devices with class COMMUNICATION_SERIAL,
* COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL
*/
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 888a0ce91c4..746e07033dc 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -1418,42 +1418,37 @@ config SERIAL_BFIN_SPORT
To compile this driver as a module, choose M here: the
module will be called bfin_sport_uart.
-choice
- prompt "Baud rate for Blackfin SPORT UART"
- depends on SERIAL_BFIN_SPORT
- default SERIAL_SPORT_BAUD_RATE_57600
- help
- Choose a baud rate for the SPORT UART, other uart settings are
- 8 bit, 1 stop bit, no parity, no flow control.
-
-config SERIAL_SPORT_BAUD_RATE_115200
- bool "115200"
-
-config SERIAL_SPORT_BAUD_RATE_57600
- bool "57600"
+config SERIAL_BFIN_SPORT_CONSOLE
+ bool "Console on Blackfin sport emulated uart"
+ depends on SERIAL_BFIN_SPORT=y
+ select SERIAL_CORE_CONSOLE
-config SERIAL_SPORT_BAUD_RATE_38400
- bool "38400"
+config SERIAL_BFIN_SPORT0_UART
+ bool "Enable UART over SPORT0"
+ depends on SERIAL_BFIN_SPORT && !(BF542 || BF542M || BF544 || BF544M)
+ help
+ Enable UART over SPORT0
-config SERIAL_SPORT_BAUD_RATE_19200
- bool "19200"
+config SERIAL_BFIN_SPORT1_UART
+ bool "Enable UART over SPORT1"
+ depends on SERIAL_BFIN_SPORT
+ help
+ Enable UART over SPORT1
-config SERIAL_SPORT_BAUD_RATE_9600
- bool "9600"
-endchoice
+config SERIAL_BFIN_SPORT2_UART
+ bool "Enable UART over SPORT2"
+ depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
+ help
+ Enable UART over SPORT2
-config SPORT_BAUD_RATE
- int
- depends on SERIAL_BFIN_SPORT
- default 115200 if (SERIAL_SPORT_BAUD_RATE_115200)
- default 57600 if (SERIAL_SPORT_BAUD_RATE_57600)
- default 38400 if (SERIAL_SPORT_BAUD_RATE_38400)
- default 19200 if (SERIAL_SPORT_BAUD_RATE_19200)
- default 9600 if (SERIAL_SPORT_BAUD_RATE_9600)
+config SERIAL_BFIN_SPORT3_UART
+ bool "Enable UART over SPORT3"
+ depends on SERIAL_BFIN_SPORT && (BF54x || BF538 || BF539)
+ help
+ Enable UART over SPORT3
config SERIAL_TIMBERDALE
tristate "Support for timberdale UART"
- depends on MFD_TIMBERDALE
select SERIAL_CORE
---help---
Add support for UART controller on timberdale.
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 9d948bccafa..2c9bf9b6832 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -1213,6 +1213,24 @@ static int atmel_verify_port(struct uart_port *port, struct serial_struct *ser)
return ret;
}
+#ifdef CONFIG_CONSOLE_POLL
+static int atmel_poll_get_char(struct uart_port *port)
+{
+ while (!(UART_GET_CSR(port) & ATMEL_US_RXRDY))
+ cpu_relax();
+
+ return UART_GET_CHAR(port);
+}
+
+static void atmel_poll_put_char(struct uart_port *port, unsigned char ch)
+{
+ while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY))
+ cpu_relax();
+
+ UART_PUT_CHAR(port, ch);
+}
+#endif
+
static struct uart_ops atmel_pops = {
.tx_empty = atmel_tx_empty,
.set_mctrl = atmel_set_mctrl,
@@ -1232,6 +1250,10 @@ static struct uart_ops atmel_pops = {
.config_port = atmel_config_port,
.verify_port = atmel_verify_port,
.pm = atmel_serial_pm,
+#ifdef CONFIG_CONSOLE_POLL
+ .poll_get_char = atmel_poll_get_char,
+ .poll_put_char = atmel_poll_put_char,
+#endif
};
/*
diff --git a/drivers/serial/bcm63xx_uart.c b/drivers/serial/bcm63xx_uart.c
index 37ad0c44993..a1a0e55d080 100644
--- a/drivers/serial/bcm63xx_uart.c
+++ b/drivers/serial/bcm63xx_uart.c
@@ -35,7 +35,7 @@
#include <bcm63xx_regs.h>
#include <bcm63xx_io.h>
-#define BCM63XX_NR_UARTS 1
+#define BCM63XX_NR_UARTS 2
static struct uart_port ports[BCM63XX_NR_UARTS];
@@ -784,7 +784,7 @@ static struct uart_driver bcm_uart_driver = {
.dev_name = "ttyS",
.major = TTY_MAJOR,
.minor = 64,
- .nr = 1,
+ .nr = BCM63XX_NR_UARTS,
.cons = BCM63XX_CONSOLE,
};
@@ -826,11 +826,12 @@ static int __devinit bcm_uart_probe(struct platform_device *pdev)
port->dev = &pdev->dev;
port->fifosize = 16;
port->uartclk = clk_get_rate(clk) / 2;
+ port->line = pdev->id;
clk_put(clk);
ret = uart_add_one_port(&bcm_uart_driver, port);
if (ret) {
- kfree(port);
+ ports[pdev->id].membase = 0;
return ret;
}
platform_set_drvdata(pdev, port);
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 50abb7e557f..fcf273e3f48 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -14,6 +14,7 @@
#include <linux/module.h>
#include <linux/ioport.h>
+#include <linux/io.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/sysrq.h>
@@ -237,7 +238,8 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
#if defined(CONFIG_KGDB_SERIAL_CONSOLE) || \
defined(CONFIG_KGDB_SERIAL_CONSOLE_MODULE)
- if (kgdb_connected && kgdboc_port_line == uart->port.line)
+ if (kgdb_connected && kgdboc_port_line == uart->port.line
+ && kgdboc_break_enabled)
if (ch == 0x3) {/* Ctrl + C */
kgdb_breakpoint();
return;
@@ -488,6 +490,7 @@ void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart)
{
int x_pos, pos;
+ dma_disable_irq(uart->tx_dma_channel);
dma_disable_irq(uart->rx_dma_channel);
spin_lock_bh(&uart->port.lock);
@@ -521,6 +524,7 @@ void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart)
}
spin_unlock_bh(&uart->port.lock);
+ dma_enable_irq(uart->tx_dma_channel);
dma_enable_irq(uart->rx_dma_channel);
mod_timer(&(uart->rx_dma_timer), jiffies + DMA_RX_FLUSH_JIFFIES);
@@ -746,15 +750,6 @@ static int bfin_serial_startup(struct uart_port *port)
Status interrupt.\n");
}
- if (uart->cts_pin >= 0) {
- gpio_request(uart->cts_pin, DRIVER_NAME);
- gpio_direction_output(uart->cts_pin, 1);
- }
- if (uart->rts_pin >= 0) {
- gpio_request(uart->rts_pin, DRIVER_NAME);
- gpio_direction_output(uart->rts_pin, 0);
- }
-
/* CTS RTS PINs are negative assertive. */
UART_PUT_MCR(uart, ACTS);
UART_SET_IER(uart, EDSSI);
@@ -801,10 +796,6 @@ static void bfin_serial_shutdown(struct uart_port *port)
gpio_free(uart->rts_pin);
#endif
#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
- if (uart->cts_pin >= 0)
- gpio_free(uart->cts_pin);
- if (uart->rts_pin >= 0)
- gpio_free(uart->rts_pin);
if (UART_GET_IER(uart) && EDSSI)
free_irq(uart->status_irq, uart);
#endif
@@ -1409,8 +1400,7 @@ static int bfin_serial_remove(struct platform_device *dev)
continue;
uart_remove_one_port(&bfin_serial_reg, &bfin_serial_ports[i].port);
bfin_serial_ports[i].port.dev = NULL;
-#if defined(CONFIG_SERIAL_BFIN_CTSRTS) || \
- defined(CONFIG_SERIAL_BFIN_HARD_CTSRTS)
+#if defined(CONFIG_SERIAL_BFIN_CTSRTS)
gpio_free(bfin_serial_ports[i].cts_pin);
gpio_free(bfin_serial_ports[i].rts_pin);
#endif
diff --git a/drivers/serial/bfin_sport_uart.c b/drivers/serial/bfin_sport_uart.c
index 088bb35475f..7c72888fbf9 100644
--- a/drivers/serial/bfin_sport_uart.c
+++ b/drivers/serial/bfin_sport_uart.c
@@ -1,27 +1,11 @@
/*
- * File: linux/drivers/serial/bfin_sport_uart.c
+ * Blackfin On-Chip Sport Emulated UART Driver
*
- * Based on: drivers/serial/bfin_5xx.c by Aubrey Li.
- * Author: Roy Huang <roy.huang@analog.com>
+ * Copyright 2006-2009 Analog Devices Inc.
*
- * Created: Nov 22, 2006
- * Copyright: (c) 2006-2007 Analog Devices Inc.
- * Description: this driver enable SPORTs on Blackfin emulate UART.
+ * Enter bugs at http://blackfin.uclinux.org/
*
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * Licensed under the GPL-2 or later.
*/
/*
@@ -29,39 +13,18 @@
* http://www.analog.com/UploadedFiles/Application_Notes/399447663EE191.pdf
* This application note describe how to implement a UART on a Sharc DSP,
* but this driver is implemented on Blackfin Processor.
+ * Transmit Frame Sync is not used by this driver to transfer data out.
*/
-/* After reset, there is a prelude of low level pulse when transmit data first
- * time. No addtional pulse in following transmit.
- * According to document:
- * The SPORTs are ready to start transmitting or receiving data no later than
- * three serial clock cycles after they are enabled in the SPORTx_TCR1 or
- * SPORTx_RCR1 register. No serial clock cycles are lost from this point on.
- * The first internal frame sync will occur one frame sync delay after the
- * SPORTs are ready. External frame syncs can occur as soon as the SPORT is
- * ready.
- */
+/* #define DEBUG */
-/* Thanks to Axel Alatalo <axel@rubico.se> for fixing sport rx bug. Sometimes
- * sport receives data incorrectly. The following is Axel's words.
- * As EE-191, sport rx samples 3 times of the UART baudrate and takes the
- * middle smaple of every 3 samples as the data bit. For a 8-N-1 UART setting,
- * 30 samples will be required for a byte. If transmitter sends a 1/3 bit short
- * byte due to buadrate drift, then the 30th sample of a byte, this sample is
- * also the third sample of the stop bit, will happens on the immediately
- * following start bit which will be thrown away and missed. Thus since parts
- * of the startbit will be missed and the receiver will begin to drift, the
- * effect accumulates over time until synchronization is lost.
- * If only require 2 samples of the stopbit (by sampling in total 29 samples),
- * then a to short byte as in the case above will be tolerated. Then the 1/3
- * early startbit will trigger a framesync since the last read is complete
- * after only 2/3 stopbit and framesync is active during the last 1/3 looking
- * for a possible early startbit. */
-
-//#define DEBUG
+#define DRV_NAME "bfin-sport-uart"
+#define DEVICE_NAME "ttySS"
+#define pr_fmt(fmt) DRV_NAME ": " fmt
#include <linux/module.h>
#include <linux/ioport.h>
+#include <linux/io.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/sysrq.h>
@@ -75,23 +38,36 @@
#include "bfin_sport_uart.h"
+#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
unsigned short bfin_uart_pin_req_sport0[] =
{P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS, \
P_SPORT0_DRPRI, P_SPORT0_RSCLK, P_SPORT0_DRSEC, P_SPORT0_DTSEC, 0};
-
+#endif
+#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
unsigned short bfin_uart_pin_req_sport1[] =
{P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS, \
P_SPORT1_DRPRI, P_SPORT1_RSCLK, P_SPORT1_DRSEC, P_SPORT1_DTSEC, 0};
-
-#define DRV_NAME "bfin-sport-uart"
+#endif
+#ifdef CONFIG_SERIAL_BFIN_SPORT2_UART
+unsigned short bfin_uart_pin_req_sport2[] =
+ {P_SPORT2_TFS, P_SPORT2_DTPRI, P_SPORT2_TSCLK, P_SPORT2_RFS, \
+ P_SPORT2_DRPRI, P_SPORT2_RSCLK, P_SPORT2_DRSEC, P_SPORT2_DTSEC, 0};
+#endif
+#ifdef CONFIG_SERIAL_BFIN_SPORT3_UART
+unsigned short bfin_uart_pin_req_sport3[] =
+ {P_SPORT3_TFS, P_SPORT3_DTPRI, P_SPORT3_TSCLK, P_SPORT3_RFS, \
+ P_SPORT3_DRPRI, P_SPORT3_RSCLK, P_SPORT3_DRSEC, P_SPORT3_DTSEC, 0};
+#endif
struct sport_uart_port {
struct uart_port port;
- char *name;
-
- int tx_irq;
- int rx_irq;
int err_irq;
+ unsigned short csize;
+ unsigned short rxmask;
+ unsigned short txmask1;
+ unsigned short txmask2;
+ unsigned char stopb;
+/* unsigned char parib; */
};
static void sport_uart_tx_chars(struct sport_uart_port *up);
@@ -99,36 +75,42 @@ static void sport_stop_tx(struct uart_port *port);
static inline void tx_one_byte(struct sport_uart_port *up, unsigned int value)
{
- pr_debug("%s value:%x\n", __func__, value);
- /* Place a Start and Stop bit */
+ pr_debug("%s value:%x, mask1=0x%x, mask2=0x%x\n", __func__, value,
+ up->txmask1, up->txmask2);
+
+ /* Place Start and Stop bits */
__asm__ __volatile__ (
- "R2 = b#01111111100;"
- "R3 = b#10000000001;"
- "%0 <<= 2;"
- "%0 = %0 & R2;"
- "%0 = %0 | R3;"
- : "=d"(value)
- : "d"(value)
- : "ASTAT", "R2", "R3"
+ "%[val] <<= 1;"
+ "%[val] = %[val] & %[mask1];"
+ "%[val] = %[val] | %[mask2];"
+ : [val]"+d"(value)
+ : [mask1]"d"(up->txmask1), [mask2]"d"(up->txmask2)
+ : "ASTAT"
);
pr_debug("%s value:%x\n", __func__, value);
SPORT_PUT_TX(up, value);
}
-static inline unsigned int rx_one_byte(struct sport_uart_port *up)
+static inline unsigned char rx_one_byte(struct sport_uart_port *up)
{
- unsigned int value, extract;
+ unsigned int value;
+ unsigned char extract;
u32 tmp_mask1, tmp_mask2, tmp_shift, tmp;
- value = SPORT_GET_RX32(up);
- pr_debug("%s value:%x\n", __func__, value);
+ if ((up->csize + up->stopb) > 7)
+ value = SPORT_GET_RX32(up);
+ else
+ value = SPORT_GET_RX(up);
+
+ pr_debug("%s value:%x, cs=%d, mask=0x%x\n", __func__, value,
+ up->csize, up->rxmask);
- /* Extract 8 bits data */
+ /* Extract data */
__asm__ __volatile__ (
"%[extr] = 0;"
- "%[mask1] = 0x1801(Z);"
- "%[mask2] = 0x0300(Z);"
+ "%[mask1] = %[rxmask];"
+ "%[mask2] = 0x0200(Z);"
"%[shift] = 0;"
"LSETUP(.Lloop_s, .Lloop_e) LC0 = %[lc];"
".Lloop_s:"
@@ -138,9 +120,9 @@ static inline unsigned int rx_one_byte(struct sport_uart_port *up)
"%[mask1] = %[mask1] - %[mask2];"
".Lloop_e:"
"%[shift] += 1;"
- : [val]"=d"(value), [extr]"=d"(extract), [shift]"=d"(tmp_shift), [tmp]"=d"(tmp),
- [mask1]"=d"(tmp_mask1), [mask2]"=d"(tmp_mask2)
- : "d"(value), [lc]"a"(8)
+ : [extr]"=&d"(extract), [shift]"=&d"(tmp_shift), [tmp]"=&d"(tmp),
+ [mask1]"=&d"(tmp_mask1), [mask2]"=&d"(tmp_mask2)
+ : [val]"d"(value), [rxmask]"d"(up->rxmask), [lc]"a"(up->csize)
: "ASTAT", "LB0", "LC0", "LT0"
);
@@ -148,29 +130,28 @@ static inline unsigned int rx_one_byte(struct sport_uart_port *up)
return extract;
}
-static int sport_uart_setup(struct sport_uart_port *up, int sclk, int baud_rate)
+static int sport_uart_setup(struct sport_uart_port *up, int size, int baud_rate)
{
- int tclkdiv, tfsdiv, rclkdiv;
+ int tclkdiv, rclkdiv;
+ unsigned int sclk = get_sclk();
- /* Set TCR1 and TCR2 */
- SPORT_PUT_TCR1(up, (LATFS | ITFS | TFSR | TLSBIT | ITCLK));
- SPORT_PUT_TCR2(up, 10);
+ /* Set TCR1 and TCR2, TFSR is not enabled for uart */
+ SPORT_PUT_TCR1(up, (ITFS | TLSBIT | ITCLK));
+ SPORT_PUT_TCR2(up, size + 1);
pr_debug("%s TCR1:%x, TCR2:%x\n", __func__, SPORT_GET_TCR1(up), SPORT_GET_TCR2(up));
/* Set RCR1 and RCR2 */
SPORT_PUT_RCR1(up, (RCKFE | LARFS | LRFS | RFSR | IRCLK));
- SPORT_PUT_RCR2(up, 28);
+ SPORT_PUT_RCR2(up, (size + 1) * 2 - 1);
pr_debug("%s RCR1:%x, RCR2:%x\n", __func__, SPORT_GET_RCR1(up), SPORT_GET_RCR2(up));
- tclkdiv = sclk/(2 * baud_rate) - 1;
- tfsdiv = 12;
- rclkdiv = sclk/(2 * baud_rate * 3) - 1;
+ tclkdiv = sclk / (2 * baud_rate) - 1;
+ rclkdiv = sclk / (2 * baud_rate * 2) - 1;
SPORT_PUT_TCLKDIV(up, tclkdiv);
- SPORT_PUT_TFSDIV(up, tfsdiv);
SPORT_PUT_RCLKDIV(up, rclkdiv);
SSYNC();
- pr_debug("%s sclk:%d, baud_rate:%d, tclkdiv:%d, tfsdiv:%d, rclkdiv:%d\n",
- __func__, sclk, baud_rate, tclkdiv, tfsdiv, rclkdiv);
+ pr_debug("%s sclk:%d, baud_rate:%d, tclkdiv:%d, rclkdiv:%d\n",
+ __func__, sclk, baud_rate, tclkdiv, rclkdiv);
return 0;
}
@@ -181,23 +162,29 @@ static irqreturn_t sport_uart_rx_irq(int irq, void *dev_id)
struct tty_struct *tty = up->port.state->port.tty;
unsigned int ch;
- do {
+ spin_lock(&up->port.lock);
+
+ while (SPORT_GET_STAT(up) & RXNE) {
ch = rx_one_byte(up);
up->port.icount.rx++;
- if (uart_handle_sysrq_char(&up->port, ch))
- ;
- else
+ if (!uart_handle_sysrq_char(&up->port, ch))
tty_insert_flip_char(tty, ch, TTY_NORMAL);
- } while (SPORT_GET_STAT(up) & RXNE);
+ }
tty_flip_buffer_push(tty);
+ spin_unlock(&up->port.lock);
+
return IRQ_HANDLED;
}
static irqreturn_t sport_uart_tx_irq(int irq, void *dev_id)
{
- sport_uart_tx_chars(dev_id);
+ struct sport_uart_port *up = dev_id;
+
+ spin_lock(&up->port.lock);
+ sport_uart_tx_chars(up);
+ spin_unlock(&up->port.lock);
return IRQ_HANDLED;
}
@@ -208,6 +195,8 @@ static irqreturn_t sport_uart_err_irq(int irq, void *dev_id)
struct tty_struct *tty = up->port.state->port.tty;
unsigned int stat = SPORT_GET_STAT(up);
+ spin_lock(&up->port.lock);
+
/* Overflow in RX FIFO */
if (stat & ROVF) {
up->port.icount.overrun++;
@@ -216,15 +205,16 @@ static irqreturn_t sport_uart_err_irq(int irq, void *dev_id)
}
/* These should not happen */
if (stat & (TOVF | TUVF | RUVF)) {
- printk(KERN_ERR "SPORT Error:%s %s %s\n",
- (stat & TOVF)?"TX overflow":"",
- (stat & TUVF)?"TX underflow":"",
- (stat & RUVF)?"RX underflow":"");
+ pr_err("SPORT Error:%s %s %s\n",
+ (stat & TOVF) ? "TX overflow" : "",
+ (stat & TUVF) ? "TX underflow" : "",
+ (stat & RUVF) ? "RX underflow" : "");
SPORT_PUT_TCR1(up, SPORT_GET_TCR1(up) & ~TSPEN);
SPORT_PUT_RCR1(up, SPORT_GET_RCR1(up) & ~RSPEN);
}
SSYNC();
+ spin_unlock(&up->port.lock);
return IRQ_HANDLED;
}
@@ -232,60 +222,37 @@ static irqreturn_t sport_uart_err_irq(int irq, void *dev_id)
static int sport_startup(struct uart_port *port)
{
struct sport_uart_port *up = (struct sport_uart_port *)port;
- char buffer[20];
- int retval;
+ int ret;
pr_debug("%s enter\n", __func__);
- snprintf(buffer, 20, "%s rx", up->name);
- retval = request_irq(up->rx_irq, sport_uart_rx_irq, IRQF_SAMPLE_RANDOM, buffer, up);
- if (retval) {
- printk(KERN_ERR "Unable to request interrupt %s\n", buffer);
- return retval;
+ ret = request_irq(up->port.irq, sport_uart_rx_irq, 0,
+ "SPORT_UART_RX", up);
+ if (ret) {
+ dev_err(port->dev, "unable to request SPORT RX interrupt\n");
+ return ret;
}
- snprintf(buffer, 20, "%s tx", up->name);
- retval = request_irq(up->tx_irq, sport_uart_tx_irq, IRQF_SAMPLE_RANDOM, buffer, up);
- if (retval) {
- printk(KERN_ERR "Unable to request interrupt %s\n", buffer);
+ ret = request_irq(up->port.irq+1, sport_uart_tx_irq, 0,
+ "SPORT_UART_TX", up);
+ if (ret) {
+ dev_err(port->dev, "unable to request SPORT TX interrupt\n");
goto fail1;
}
- snprintf(buffer, 20, "%s err", up->name);
- retval = request_irq(up->err_irq, sport_uart_err_irq, IRQF_SAMPLE_RANDOM, buffer, up);
- if (retval) {
- printk(KERN_ERR "Unable to request interrupt %s\n", buffer);
+ ret = request_irq(up->err_irq, sport_uart_err_irq, 0,
+ "SPORT_UART_STATUS", up);
+ if (ret) {
+ dev_err(port->dev, "unable to request SPORT status interrupt\n");
goto fail2;
}
- if (port->line) {
- if (peripheral_request_list(bfin_uart_pin_req_sport1, DRV_NAME))
- goto fail3;
- } else {
- if (peripheral_request_list(bfin_uart_pin_req_sport0, DRV_NAME))
- goto fail3;
- }
-
- sport_uart_setup(up, get_sclk(), port->uartclk);
-
- /* Enable receive interrupt */
- SPORT_PUT_RCR1(up, (SPORT_GET_RCR1(up) | RSPEN));
- SSYNC();
-
return 0;
+ fail2:
+ free_irq(up->port.irq+1, up);
+ fail1:
+ free_irq(up->port.irq, up);
-
-fail3:
- printk(KERN_ERR DRV_NAME
- ": Requesting Peripherals failed\n");
-
- free_irq(up->err_irq, up);
-fail2:
- free_irq(up->tx_irq, up);
-fail1:
- free_irq(up->rx_irq, up);
-
- return retval;
-
+ return ret;
}
static void sport_uart_tx_chars(struct sport_uart_port *up)
@@ -344,20 +311,17 @@ static void sport_set_mctrl(struct uart_port *port, unsigned int mctrl)
static void sport_stop_tx(struct uart_port *port)
{
struct sport_uart_port *up = (struct sport_uart_port *)port;
- unsigned int stat;
pr_debug("%s enter\n", __func__);
- stat = SPORT_GET_STAT(up);
- while(!(stat & TXHRE)) {
- udelay(1);
- stat = SPORT_GET_STAT(up);
- }
/* Although the hold register is empty, last byte is still in shift
- * register and not sent out yet. If baud rate is lower than default,
- * delay should be longer. For example, if the baud rate is 9600,
- * the delay must be at least 2ms by experience */
- udelay(500);
+ * register and not sent out yet. So, put a dummy data into TX FIFO.
+ * Then, sport tx stops when last byte is shift out and the dummy
+ * data is moved into the shift register.
+ */
+ SPORT_PUT_TX(up, 0xffff);
+ while (!(SPORT_GET_STAT(up) & TXHRE))
+ cpu_relax();
SPORT_PUT_TCR1(up, (SPORT_GET_TCR1(up) & ~TSPEN));
SSYNC();
@@ -370,6 +334,7 @@ static void sport_start_tx(struct uart_port *port)
struct sport_uart_port *up = (struct sport_uart_port *)port;
pr_debug("%s enter\n", __func__);
+
/* Write data into SPORT FIFO before enable SPROT to transmit */
sport_uart_tx_chars(up);
@@ -403,37 +368,24 @@ static void sport_shutdown(struct uart_port *port)
{
struct sport_uart_port *up = (struct sport_uart_port *)port;
- pr_debug("%s enter\n", __func__);
+ dev_dbg(port->dev, "%s enter\n", __func__);
/* Disable sport */
SPORT_PUT_TCR1(up, (SPORT_GET_TCR1(up) & ~TSPEN));
SPORT_PUT_RCR1(up, (SPORT_GET_RCR1(up) & ~RSPEN));
SSYNC();
- if (port->line) {
- peripheral_free_list(bfin_uart_pin_req_sport1);
- } else {
- peripheral_free_list(bfin_uart_pin_req_sport0);
- }
-
- free_irq(up->rx_irq, up);
- free_irq(up->tx_irq, up);
+ free_irq(up->port.irq, up);
+ free_irq(up->port.irq+1, up);
free_irq(up->err_irq, up);
}
-static void sport_set_termios(struct uart_port *port,
- struct ktermios *termios, struct ktermios *old)
-{
- pr_debug("%s enter, c_cflag:%08x\n", __func__, termios->c_cflag);
- uart_update_timeout(port, CS8 ,port->uartclk);
-}
-
static const char *sport_type(struct uart_port *port)
{
struct sport_uart_port *up = (struct sport_uart_port *)port;
pr_debug("%s enter\n", __func__);
- return up->name;
+ return up->port.type == PORT_BFIN_SPORT ? "BFIN-SPORT-UART" : NULL;
}
static void sport_release_port(struct uart_port *port)
@@ -461,6 +413,110 @@ static int sport_verify_port(struct uart_port *port, struct serial_struct *ser)
return 0;
}
+static void sport_set_termios(struct uart_port *port,
+ struct ktermios *termios, struct ktermios *old)
+{
+ struct sport_uart_port *up = (struct sport_uart_port *)port;
+ unsigned long flags;
+ int i;
+
+ pr_debug("%s enter, c_cflag:%08x\n", __func__, termios->c_cflag);
+
+ switch (termios->c_cflag & CSIZE) {
+ case CS8:
+ up->csize = 8;
+ break;
+ case CS7:
+ up->csize = 7;
+ break;
+ case CS6:
+ up->csize = 6;
+ break;
+ case CS5:
+ up->csize = 5;
+ break;
+ default:
+ pr_warning("requested word length not supported\n");
+ }
+
+ if (termios->c_cflag & CSTOPB) {
+ up->stopb = 1;
+ }
+ if (termios->c_cflag & PARENB) {
+ pr_warning("PAREN bits is not supported yet\n");
+ /* up->parib = 1; */
+ }
+
+ port->read_status_mask = OE;
+ if (termios->c_iflag & INPCK)
+ port->read_status_mask |= (FE | PE);
+ if (termios->c_iflag & (BRKINT | PARMRK))
+ port->read_status_mask |= BI;
+
+ /*
+ * Characters to ignore
+ */
+ port->ignore_status_mask = 0;
+ if (termios->c_iflag & IGNPAR)
+ port->ignore_status_mask |= FE | PE;
+ if (termios->c_iflag & IGNBRK) {
+ port->ignore_status_mask |= BI;
+ /*
+ * If we're ignoring parity and break indicators,
+ * ignore overruns too (for real raw support).
+ */
+ if (termios->c_iflag & IGNPAR)
+ port->ignore_status_mask |= OE;
+ }
+
+ /* RX extract mask */
+ up->rxmask = 0x01 | (((up->csize + up->stopb) * 2 - 1) << 0x8);
+ /* TX masks, 8 bit data and 1 bit stop for example:
+ * mask1 = b#0111111110
+ * mask2 = b#1000000000
+ */
+ for (i = 0, up->txmask1 = 0; i < up->csize; i++)
+ up->txmask1 |= (1<<i);
+ up->txmask2 = (1<<i);
+ if (up->stopb) {
+ ++i;
+ up->txmask2 |= (1<<i);
+ }
+ up->txmask1 <<= 1;
+ up->txmask2 <<= 1;
+ /* uart baud rate */
+ port->uartclk = uart_get_baud_rate(port, termios, old, 0, get_sclk()/16);
+
+ spin_lock_irqsave(&up->port.lock, flags);
+
+ /* Disable UART */
+ SPORT_PUT_TCR1(up, SPORT_GET_TCR1(up) & ~TSPEN);
+ SPORT_PUT_RCR1(up, SPORT_GET_RCR1(up) & ~RSPEN);
+
+ sport_uart_setup(up, up->csize + up->stopb, port->uartclk);
+
+ /* driver TX line high after config, one dummy data is
+ * necessary to stop sport after shift one byte
+ */
+ SPORT_PUT_TX(up, 0xffff);
+ SPORT_PUT_TX(up, 0xffff);
+ SPORT_PUT_TCR1(up, (SPORT_GET_TCR1(up) | TSPEN));
+ SSYNC();
+ while (!(SPORT_GET_STAT(up) & TXHRE))
+ cpu_relax();
+ SPORT_PUT_TCR1(up, SPORT_GET_TCR1(up) & ~TSPEN);
+ SSYNC();
+
+ /* Port speed changed, update the per-port timeout. */
+ uart_update_timeout(port, termios->c_cflag, port->uartclk);
+
+ /* Enable sport rx */
+ SPORT_PUT_RCR1(up, SPORT_GET_RCR1(up) | RSPEN);
+ SSYNC();
+
+ spin_unlock_irqrestore(&up->port.lock, flags);
+}
+
struct uart_ops sport_uart_ops = {
.tx_empty = sport_tx_empty,
.set_mctrl = sport_set_mctrl,
@@ -480,138 +536,319 @@ struct uart_ops sport_uart_ops = {
.verify_port = sport_verify_port,
};
-static struct sport_uart_port sport_uart_ports[] = {
- { /* SPORT 0 */
- .name = "SPORT0",
- .tx_irq = IRQ_SPORT0_TX,
- .rx_irq = IRQ_SPORT0_RX,
- .err_irq= IRQ_SPORT0_ERROR,
- .port = {
- .type = PORT_BFIN_SPORT,
- .iotype = UPIO_MEM,
- .membase = (void __iomem *)SPORT0_TCR1,
- .mapbase = SPORT0_TCR1,
- .irq = IRQ_SPORT0_RX,
- .uartclk = CONFIG_SPORT_BAUD_RATE,
- .fifosize = 8,
- .ops = &sport_uart_ops,
- .line = 0,
- },
- }, { /* SPORT 1 */
- .name = "SPORT1",
- .tx_irq = IRQ_SPORT1_TX,
- .rx_irq = IRQ_SPORT1_RX,
- .err_irq= IRQ_SPORT1_ERROR,
- .port = {
- .type = PORT_BFIN_SPORT,
- .iotype = UPIO_MEM,
- .membase = (void __iomem *)SPORT1_TCR1,
- .mapbase = SPORT1_TCR1,
- .irq = IRQ_SPORT1_RX,
- .uartclk = CONFIG_SPORT_BAUD_RATE,
- .fifosize = 8,
- .ops = &sport_uart_ops,
- .line = 1,
- },
+#define BFIN_SPORT_UART_MAX_PORTS 4
+
+static struct sport_uart_port *bfin_sport_uart_ports[BFIN_SPORT_UART_MAX_PORTS];
+
+#ifdef CONFIG_SERIAL_BFIN_SPORT_CONSOLE
+static int __init
+sport_uart_console_setup(struct console *co, char *options)
+{
+ struct sport_uart_port *up;
+ int baud = 57600;
+ int bits = 8;
+ int parity = 'n';
+ int flow = 'n';
+
+ /* Check whether an invalid uart number has been specified */
+ if (co->index < 0 || co->index >= BFIN_SPORT_UART_MAX_PORTS)
+ return -ENODEV;
+
+ up = bfin_sport_uart_ports[co->index];
+ if (!up)
+ return -ENODEV;
+
+ if (options)
+ uart_parse_options(options, &baud, &parity, &bits, &flow);
+
+ return uart_set_options(&up->port, co, baud, parity, bits, flow);
+}
+
+static void sport_uart_console_putchar(struct uart_port *port, int ch)
+{
+ struct sport_uart_port *up = (struct sport_uart_port *)port;
+
+ while (SPORT_GET_STAT(up) & TXF)
+ barrier();
+
+ tx_one_byte(up, ch);
+}
+
+/*
+ * Interrupts are disabled on entering
+ */
+static void
+sport_uart_console_write(struct console *co, const char *s, unsigned int count)
+{
+ struct sport_uart_port *up = bfin_sport_uart_ports[co->index];
+ unsigned long flags;
+
+ spin_lock_irqsave(&up->port.lock, flags);
+
+ if (SPORT_GET_TCR1(up) & TSPEN)
+ uart_console_write(&up->port, s, count, sport_uart_console_putchar);
+ else {
+ /* dummy data to start sport */
+ while (SPORT_GET_STAT(up) & TXF)
+ barrier();
+ SPORT_PUT_TX(up, 0xffff);
+ /* Enable transmit, then an interrupt will generated */
+ SPORT_PUT_TCR1(up, (SPORT_GET_TCR1(up) | TSPEN));
+ SSYNC();
+
+ uart_console_write(&up->port, s, count, sport_uart_console_putchar);
+
+ /* Although the hold register is empty, last byte is still in shift
+ * register and not sent out yet. So, put a dummy data into TX FIFO.
+ * Then, sport tx stops when last byte is shift out and the dummy
+ * data is moved into the shift register.
+ */
+ while (SPORT_GET_STAT(up) & TXF)
+ barrier();
+ SPORT_PUT_TX(up, 0xffff);
+ while (!(SPORT_GET_STAT(up) & TXHRE))
+ barrier();
+
+ /* Stop sport tx transfer */
+ SPORT_PUT_TCR1(up, (SPORT_GET_TCR1(up) & ~TSPEN));
+ SSYNC();
}
+
+ spin_unlock_irqrestore(&up->port.lock, flags);
+}
+
+static struct uart_driver sport_uart_reg;
+
+static struct console sport_uart_console = {
+ .name = DEVICE_NAME,
+ .write = sport_uart_console_write,
+ .device = uart_console_device,
+ .setup = sport_uart_console_setup,
+ .flags = CON_PRINTBUFFER,
+ .index = -1,
+ .data = &sport_uart_reg,
};
+#define SPORT_UART_CONSOLE (&sport_uart_console)
+#else
+#define SPORT_UART_CONSOLE NULL
+#endif /* CONFIG_SERIAL_BFIN_SPORT_CONSOLE */
+
+
static struct uart_driver sport_uart_reg = {
.owner = THIS_MODULE,
- .driver_name = "SPORT-UART",
- .dev_name = "ttySS",
+ .driver_name = DRV_NAME,
+ .dev_name = DEVICE_NAME,
.major = 204,
.minor = 84,
- .nr = ARRAY_SIZE(sport_uart_ports),
- .cons = NULL,
+ .nr = BFIN_SPORT_UART_MAX_PORTS,
+ .cons = SPORT_UART_CONSOLE,
};
-static int sport_uart_suspend(struct platform_device *dev, pm_message_t state)
+#ifdef CONFIG_PM
+static int sport_uart_suspend(struct device *dev)
{
- struct sport_uart_port *sport = platform_get_drvdata(dev);
+ struct sport_uart_port *sport = dev_get_drvdata(dev);
- pr_debug("%s enter\n", __func__);
+ dev_dbg(dev, "%s enter\n", __func__);
if (sport)
uart_suspend_port(&sport_uart_reg, &sport->port);
return 0;
}
-static int sport_uart_resume(struct platform_device *dev)
+static int sport_uart_resume(struct device *dev)
{
- struct sport_uart_port *sport = platform_get_drvdata(dev);
+ struct sport_uart_port *sport = dev_get_drvdata(dev);
- pr_debug("%s enter\n", __func__);
+ dev_dbg(dev, "%s enter\n", __func__);
if (sport)
uart_resume_port(&sport_uart_reg, &sport->port);
return 0;
}
-static int sport_uart_probe(struct platform_device *dev)
+static struct dev_pm_ops bfin_sport_uart_dev_pm_ops = {
+ .suspend = sport_uart_suspend,
+ .resume = sport_uart_resume,
+};
+#endif
+
+static int __devinit sport_uart_probe(struct platform_device *pdev)
{
- pr_debug("%s enter\n", __func__);
- sport_uart_ports[dev->id].port.dev = &dev->dev;
- uart_add_one_port(&sport_uart_reg, &sport_uart_ports[dev->id].port);
- platform_set_drvdata(dev, &sport_uart_ports[dev->id]);
+ struct resource *res;
+ struct sport_uart_port *sport;
+ int ret = 0;
- return 0;
+ dev_dbg(&pdev->dev, "%s enter\n", __func__);
+
+ if (pdev->id < 0 || pdev->id >= BFIN_SPORT_UART_MAX_PORTS) {
+ dev_err(&pdev->dev, "Wrong sport uart platform device id.\n");
+ return -ENOENT;
+ }
+
+ if (bfin_sport_uart_ports[pdev->id] == NULL) {
+ bfin_sport_uart_ports[pdev->id] =
+ kmalloc(sizeof(struct sport_uart_port), GFP_KERNEL);
+ sport = bfin_sport_uart_ports[pdev->id];
+ if (!sport) {
+ dev_err(&pdev->dev,
+ "Fail to kmalloc sport_uart_port\n");
+ return -ENOMEM;
+ }
+
+ ret = peripheral_request_list(
+ (unsigned short *)pdev->dev.platform_data, DRV_NAME);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Fail to request SPORT peripherals\n");
+ goto out_error_free_mem;
+ }
+
+ spin_lock_init(&sport->port.lock);
+ sport->port.fifosize = SPORT_TX_FIFO_SIZE,
+ sport->port.ops = &sport_uart_ops;
+ sport->port.line = pdev->id;
+ sport->port.iotype = UPIO_MEM;
+ sport->port.flags = UPF_BOOT_AUTOCONF;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "Cannot get IORESOURCE_MEM\n");
+ ret = -ENOENT;
+ goto out_error_free_peripherals;
+ }
+
+ sport->port.membase = ioremap(res->start,
+ res->end - res->start);
+ if (!sport->port.membase) {
+ dev_err(&pdev->dev, "Cannot map sport IO\n");
+ ret = -ENXIO;
+ goto out_error_free_peripherals;
+ }
+
+ sport->port.irq = platform_get_irq(pdev, 0);
+ if (sport->port.irq < 0) {
+ dev_err(&pdev->dev, "No sport RX/TX IRQ specified\n");
+ ret = -ENOENT;
+ goto out_error_unmap;
+ }
+
+ sport->err_irq = platform_get_irq(pdev, 1);
+ if (sport->err_irq < 0) {
+ dev_err(&pdev->dev, "No sport status IRQ specified\n");
+ ret = -ENOENT;
+ goto out_error_unmap;
+ }
+ }
+
+#ifdef CONFIG_SERIAL_BFIN_SPORT_CONSOLE
+ if (!is_early_platform_device(pdev)) {
+#endif
+ sport = bfin_sport_uart_ports[pdev->id];
+ sport->port.dev = &pdev->dev;
+ dev_set_drvdata(&pdev->dev, sport);
+ ret = uart_add_one_port(&sport_uart_reg, &sport->port);
+#ifdef CONFIG_SERIAL_BFIN_SPORT_CONSOLE
+ }
+#endif
+ if (!ret)
+ return 0;
+
+ if (sport) {
+out_error_unmap:
+ iounmap(sport->port.membase);
+out_error_free_peripherals:
+ peripheral_free_list(
+ (unsigned short *)pdev->dev.platform_data);
+out_error_free_mem:
+ kfree(sport);
+ bfin_sport_uart_ports[pdev->id] = NULL;
+ }
+
+ return ret;
}
-static int sport_uart_remove(struct platform_device *dev)
+static int __devexit sport_uart_remove(struct platform_device *pdev)
{
- struct sport_uart_port *sport = platform_get_drvdata(dev);
+ struct sport_uart_port *sport = platform_get_drvdata(pdev);
- pr_debug("%s enter\n", __func__);
- platform_set_drvdata(dev, NULL);
+ dev_dbg(&pdev->dev, "%s enter\n", __func__);
+ dev_set_drvdata(&pdev->dev, NULL);
- if (sport)
+ if (sport) {
uart_remove_one_port(&sport_uart_reg, &sport->port);
+ iounmap(sport->port.membase);
+ peripheral_free_list(
+ (unsigned short *)pdev->dev.platform_data);
+ kfree(sport);
+ bfin_sport_uart_ports[pdev->id] = NULL;
+ }
return 0;
}
static struct platform_driver sport_uart_driver = {
.probe = sport_uart_probe,
- .remove = sport_uart_remove,
- .suspend = sport_uart_suspend,
- .resume = sport_uart_resume,
+ .remove = __devexit_p(sport_uart_remove),
.driver = {
.name = DRV_NAME,
+#ifdef CONFIG_PM
+ .pm = &bfin_sport_uart_dev_pm_ops,
+#endif
},
};
+#ifdef CONFIG_SERIAL_BFIN_SPORT_CONSOLE
+static __initdata struct early_platform_driver early_sport_uart_driver = {
+ .class_str = DRV_NAME,
+ .pdrv = &sport_uart_driver,
+ .requested_id = EARLY_PLATFORM_ID_UNSET,
+};
+
+static int __init sport_uart_rs_console_init(void)
+{
+ early_platform_driver_register(&early_sport_uart_driver, DRV_NAME);
+
+ early_platform_driver_probe(DRV_NAME, BFIN_SPORT_UART_MAX_PORTS, 0);
+
+ register_console(&sport_uart_console);
+
+ return 0;
+}
+console_initcall(sport_uart_rs_console_init);
+#endif
+
static int __init sport_uart_init(void)
{
int ret;
- pr_debug("%s enter\n", __func__);
+ pr_info("Serial: Blackfin uart over sport driver\n");
+
ret = uart_register_driver(&sport_uart_reg);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register %s:%d\n",
+ if (ret) {
+ pr_err("failed to register %s:%d\n",
sport_uart_reg.driver_name, ret);
return ret;
}
ret = platform_driver_register(&sport_uart_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register sport uart driver:%d\n", ret);
+ if (ret) {
+ pr_err("failed to register sport uart driver:%d\n", ret);
uart_unregister_driver(&sport_uart_reg);
}
-
- pr_debug("%s exit\n", __func__);
return ret;
}
+module_init(sport_uart_init);
static void __exit sport_uart_exit(void)
{
- pr_debug("%s enter\n", __func__);
platform_driver_unregister(&sport_uart_driver);
uart_unregister_driver(&sport_uart_reg);
}
-
-module_init(sport_uart_init);
module_exit(sport_uart_exit);
+MODULE_AUTHOR("Sonic Zhang, Roy Huang");
+MODULE_DESCRIPTION("Blackfin serial over SPORT driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/serial/bfin_sport_uart.h b/drivers/serial/bfin_sport_uart.h
index 671d41cc1a3..abe03614e4d 100644
--- a/drivers/serial/bfin_sport_uart.h
+++ b/drivers/serial/bfin_sport_uart.h
@@ -1,29 +1,23 @@
/*
- * File: linux/drivers/serial/bfin_sport_uart.h
+ * Blackfin On-Chip Sport Emulated UART Driver
*
- * Based on: include/asm-blackfin/mach-533/bfin_serial_5xx.h
- * Author: Roy Huang <roy.huang>analog.com>
+ * Copyright 2006-2008 Analog Devices Inc.
*
- * Created: Nov 22, 2006
- * Copyright: (C) Analog Device Inc.
- * Description: this driver enable SPORTs on Blackfin emulate UART.
+ * Enter bugs at http://blackfin.uclinux.org/
*
- * 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, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * Licensed under the GPL-2 or later.
*/
+/*
+ * This driver and the hardware supported are in term of EE-191 of ADI.
+ * http://www.analog.com/UploadedFiles/Application_Notes/399447663EE191.pdf
+ * This application note describe how to implement a UART on a Sharc DSP,
+ * but this driver is implemented on Blackfin Processor.
+ * Transmit Frame Sync is not used by this driver to transfer data out.
+ */
+
+#ifndef _BFIN_SPORT_UART_H
+#define _BFIN_SPORT_UART_H
#define OFFSET_TCR1 0x00 /* Transmit Configuration 1 Register */
#define OFFSET_TCR2 0x04 /* Transmit Configuration 2 Register */
@@ -61,3 +55,7 @@
#define SPORT_PUT_RCLKDIV(sport, v) bfin_write16(((sport)->port.membase + OFFSET_RCLKDIV), v)
#define SPORT_PUT_RFSDIV(sport, v) bfin_write16(((sport)->port.membase + OFFSET_RFSDIV), v)
#define SPORT_PUT_STAT(sport, v) bfin_write16(((sport)->port.membase + OFFSET_STAT), v)
+
+#define SPORT_TX_FIFO_SIZE 8
+
+#endif /* _BFIN_SPORT_UART_H */
diff --git a/drivers/serial/icom.c b/drivers/serial/icom.c
index 0028b6f89ce..53a46822705 100644
--- a/drivers/serial/icom.c
+++ b/drivers/serial/icom.c
@@ -751,7 +751,6 @@ static void recv_interrupt(u16 port_int_reg, struct icom_port *icom_port)
trace(icom_port, "FID_STATUS", status);
count = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].leLength);
- count = tty_buffer_request_room(tty, count);
trace(icom_port, "RCV_COUNT", count);
trace(icom_port, "REAL_COUNT", count);
@@ -1654,4 +1653,6 @@ MODULE_DESCRIPTION("IBM iSeries Serial IOA driver");
MODULE_SUPPORTED_DEVICE
("IBM iSeries 2745, 2771, 2772, 2742, 2793 and 2805 Communications adapters");
MODULE_LICENSE("GPL");
-
+MODULE_FIRMWARE("icom_call_setup.bin");
+MODULE_FIRMWARE("icom_res_dce.bin");
+MODULE_FIRMWARE("icom_asc.bin");
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 60d665a17a8..d00fcf8e6c7 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -1279,7 +1279,7 @@ static int serial_imx_probe(struct platform_device *pdev)
sport->use_irda = 1;
#endif
- if (pdata->init) {
+ if (pdata && pdata->init) {
ret = pdata->init(pdev);
if (ret)
goto clkput;
@@ -1292,7 +1292,7 @@ static int serial_imx_probe(struct platform_device *pdev)
return 0;
deinit:
- if (pdata->exit)
+ if (pdata && pdata->exit)
pdata->exit(pdev);
clkput:
clk_put(sport->clk);
@@ -1321,7 +1321,7 @@ static int serial_imx_remove(struct platform_device *pdev)
clk_disable(sport->clk);
- if (pdata->exit)
+ if (pdata && pdata->exit)
pdata->exit(pdev);
iounmap(sport->port.membase);
diff --git a/drivers/serial/ioc3_serial.c b/drivers/serial/ioc3_serial.c
index 85dc0410ac1..23ba6b40b3a 100644
--- a/drivers/serial/ioc3_serial.c
+++ b/drivers/serial/ioc3_serial.c
@@ -1411,8 +1411,7 @@ static int receive_chars(struct uart_port *the_port)
read_count = do_read(the_port, ch, MAX_CHARS);
if (read_count > 0) {
flip = 1;
- read_room = tty_buffer_request_room(tty, read_count);
- tty_insert_flip_string(tty, ch, read_room);
+ read_room = tty_insert_flip_string(tty, ch, read_count);
the_port->icount.rx += read_count;
}
spin_unlock_irqrestore(&the_port->lock, pflags);
diff --git a/drivers/serial/jsm/jsm_driver.c b/drivers/serial/jsm/jsm_driver.c
index 108c3e0471f..12cb5e446a4 100644
--- a/drivers/serial/jsm/jsm_driver.c
+++ b/drivers/serial/jsm/jsm_driver.c
@@ -179,6 +179,7 @@ static int __devinit jsm_probe_one(struct pci_dev *pdev, const struct pci_device
return 0;
out_free_irq:
+ jsm_remove_uart_port(brd);
free_irq(brd->irq, brd);
out_iounmap:
iounmap(brd->re_map_membase);
diff --git a/drivers/serial/jsm/jsm_tty.c b/drivers/serial/jsm/jsm_tty.c
index cd95e215550..5673ca9dfdc 100644
--- a/drivers/serial/jsm/jsm_tty.c
+++ b/drivers/serial/jsm/jsm_tty.c
@@ -432,7 +432,7 @@ int __devinit jsm_tty_init(struct jsm_board *brd)
int jsm_uart_port_init(struct jsm_board *brd)
{
- int i;
+ int i, rc;
unsigned int line;
struct jsm_channel *ch;
@@ -467,8 +467,11 @@ int jsm_uart_port_init(struct jsm_board *brd)
} else
set_bit(line, linemap);
brd->channels[i]->uart_port.line = line;
- if (uart_add_one_port (&jsm_uart_driver, &brd->channels[i]->uart_port))
- printk(KERN_INFO "jsm: add device failed\n");
+ rc = uart_add_one_port (&jsm_uart_driver, &brd->channels[i]->uart_port);
+ if (rc){
+ printk(KERN_INFO "jsm: Port %d failed. Aborting...\n", i);
+ return rc;
+ }
else
printk(KERN_INFO "jsm: Port %d added\n", i);
}
diff --git a/drivers/serial/msm_serial.c b/drivers/serial/msm_serial.c
index b05c5aa02cb..ecdc0facf7e 100644
--- a/drivers/serial/msm_serial.c
+++ b/drivers/serial/msm_serial.c
@@ -691,6 +691,7 @@ static int __init msm_serial_probe(struct platform_device *pdev)
struct msm_port *msm_port;
struct resource *resource;
struct uart_port *port;
+ int irq;
if (unlikely(pdev->id < 0 || pdev->id >= UART_NR))
return -ENXIO;
@@ -711,9 +712,10 @@ static int __init msm_serial_probe(struct platform_device *pdev)
return -ENXIO;
port->mapbase = resource->start;
- port->irq = platform_get_irq(pdev, 0);
- if (unlikely(port->irq < 0))
+ irq = platform_get_irq(pdev, 0);
+ if (unlikely(irq < 0))
return -ENXIO;
+ port->irq = irq;
platform_set_drvdata(pdev, port);
diff --git a/drivers/serial/timbuart.c b/drivers/serial/timbuart.c
index 34b31da01d0..7bf10264a6a 100644
--- a/drivers/serial/timbuart.c
+++ b/drivers/serial/timbuart.c
@@ -421,7 +421,7 @@ static struct uart_driver timbuart_driver = {
static int timbuart_probe(struct platform_device *dev)
{
- int err;
+ int err, irq;
struct timbuart_port *uart;
struct resource *iomem;
@@ -453,11 +453,12 @@ static int timbuart_probe(struct platform_device *dev)
uart->port.mapbase = iomem->start;
uart->port.membase = NULL;
- uart->port.irq = platform_get_irq(dev, 0);
- if (uart->port.irq < 0) {
+ irq = platform_get_irq(dev, 0);
+ if (irq < 0) {
err = -EINVAL;
goto err_register;
}
+ uart->port.irq = irq;
tasklet_init(&uart->tasklet, timbuart_tasklet, (unsigned long)uart);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-11 23:35:11 +0000