Merge 4.9-rc3 into tty-next
We want the serial/tty fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/Documentation/VGA-softcursor.txt b/Documentation/VGA-softcursor.txt
index 70acfbf..2ea8968 100644
--- a/Documentation/VGA-softcursor.txt
+++ b/Documentation/VGA-softcursor.txt
@@ -2,13 +2,11 @@
======================= and Martin Mares <mj@atrey.karlin.mff.cuni.cz>
Linux now has some ability to manipulate cursor appearance. Normally, you
-can set the size of hardware cursor (and also work around some ugly bugs in
-those miserable Trident cards--see #define TRIDENT_GLITCH in drivers/video/
-vgacon.c). You can now play a few new tricks: you can make your cursor look
-like a non-blinking red block, make it inverse background of the character it's
-over or to highlight that character and still choose whether the original
-hardware cursor should remain visible or not. There may be other things I have
-never thought of.
+can set the size of hardware cursor. You can now play a few new tricks: you
+can make your cursor look like a non-blinking red block, make it inverse
+background of the character it's over or to highlight that character and still
+choose whether the original hardware cursor should remain visible or not.
+There may be other things I have never thought of.
The cursor appearance is controlled by a "<ESC>[?1;2;3c" escape sequence
where 1, 2 and 3 are parameters described below. If you omit any of them,
diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c
index 0facc78..b67e7a5 100644
--- a/drivers/tty/serial/8250/8250_fintek.c
+++ b/drivers/tty/serial/8250/8250_fintek.c
@@ -21,8 +21,11 @@
#define EXIT_KEY 0xAA
#define CHIP_ID1 0x20
#define CHIP_ID2 0x21
-#define CHIP_ID_0 0x1602
-#define CHIP_ID_1 0x0501
+#define CHIP_ID_F81865 0x0407
+#define CHIP_ID_F81866 0x1010
+#define CHIP_ID_F81216AD 0x1602
+#define CHIP_ID_F81216H 0x0501
+#define CHIP_ID_F81216 0x0802
#define VENDOR_ID1 0x23
#define VENDOR_ID1_VAL 0x19
#define VENDOR_ID2 0x24
@@ -43,12 +46,60 @@
#define RXW4C_IRA BIT(3)
#define TXW4C_IRA BIT(2)
+#define FIFO_CTRL 0xF6
+#define FIFO_MODE_MASK (BIT(1) | BIT(0))
+#define FIFO_MODE_128 (BIT(1) | BIT(0))
+#define RXFTHR_MODE_MASK (BIT(5) | BIT(4))
+#define RXFTHR_MODE_4X BIT(5)
+
+#define F81216_LDN_LOW 0x0
+#define F81216_LDN_HIGH 0x4
+
+/*
+ * F81866 registers
+ *
+ * The IRQ setting mode of F81866 is not the same with F81216 series.
+ * Level/Low: IRQ_MODE0:0, IRQ_MODE1:0
+ * Edge/High: IRQ_MODE0:1, IRQ_MODE1:0
+ */
+#define F81866_IRQ_MODE 0xf0
+#define F81866_IRQ_SHARE BIT(0)
+#define F81866_IRQ_MODE0 BIT(1)
+
+#define F81866_FIFO_CTRL FIFO_CTRL
+#define F81866_IRQ_MODE1 BIT(3)
+
+#define F81866_LDN_LOW 0x10
+#define F81866_LDN_HIGH 0x16
+
struct fintek_8250 {
+ u16 pid;
u16 base_port;
u8 index;
u8 key;
};
+static u8 sio_read_reg(struct fintek_8250 *pdata, u8 reg)
+{
+ outb(reg, pdata->base_port + ADDR_PORT);
+ return inb(pdata->base_port + DATA_PORT);
+}
+
+static void sio_write_reg(struct fintek_8250 *pdata, u8 reg, u8 data)
+{
+ outb(reg, pdata->base_port + ADDR_PORT);
+ outb(data, pdata->base_port + DATA_PORT);
+}
+
+static void sio_write_mask_reg(struct fintek_8250 *pdata, u8 reg, u8 mask,
+ u8 data)
+{
+ u8 tmp;
+
+ tmp = (sio_read_reg(pdata, reg) & ~mask) | (mask & data);
+ sio_write_reg(pdata, reg, tmp);
+}
+
static int fintek_8250_enter_key(u16 base_port, u8 key)
{
if (!request_muxed_region(base_port, 2, "8250_fintek"))
@@ -66,29 +117,55 @@ static void fintek_8250_exit_key(u16 base_port)
release_region(base_port + ADDR_PORT, 2);
}
-static int fintek_8250_check_id(u16 base_port)
+static int fintek_8250_check_id(struct fintek_8250 *pdata)
{
u16 chip;
- outb(VENDOR_ID1, base_port + ADDR_PORT);
- if (inb(base_port + DATA_PORT) != VENDOR_ID1_VAL)
+ if (sio_read_reg(pdata, VENDOR_ID1) != VENDOR_ID1_VAL)
return -ENODEV;
- outb(VENDOR_ID2, base_port + ADDR_PORT);
- if (inb(base_port + DATA_PORT) != VENDOR_ID2_VAL)
+ if (sio_read_reg(pdata, VENDOR_ID2) != VENDOR_ID2_VAL)
return -ENODEV;
- outb(CHIP_ID1, base_port + ADDR_PORT);
- chip = inb(base_port + DATA_PORT);
- outb(CHIP_ID2, base_port + ADDR_PORT);
- chip |= inb(base_port + DATA_PORT) << 8;
+ chip = sio_read_reg(pdata, CHIP_ID1);
+ chip |= sio_read_reg(pdata, CHIP_ID2) << 8;
- if (chip != CHIP_ID_0 && chip != CHIP_ID_1)
+ switch (chip) {
+ case CHIP_ID_F81865:
+ case CHIP_ID_F81866:
+ case CHIP_ID_F81216AD:
+ case CHIP_ID_F81216H:
+ case CHIP_ID_F81216:
+ break;
+ default:
return -ENODEV;
+ }
+ pdata->pid = chip;
return 0;
}
+static int fintek_8250_get_ldn_range(struct fintek_8250 *pdata, int *min,
+ int *max)
+{
+ switch (pdata->pid) {
+ case CHIP_ID_F81865:
+ case CHIP_ID_F81866:
+ *min = F81866_LDN_LOW;
+ *max = F81866_LDN_HIGH;
+ return 0;
+
+ case CHIP_ID_F81216AD:
+ case CHIP_ID_F81216H:
+ case CHIP_ID_F81216:
+ *min = F81216_LDN_LOW;
+ *max = F81216_LDN_HIGH;
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
static int fintek_8250_rs485_config(struct uart_port *port,
struct serial_rs485 *rs485)
{
@@ -128,10 +205,8 @@ static int fintek_8250_rs485_config(struct uart_port *port,
if (fintek_8250_enter_key(pdata->base_port, pdata->key))
return -EBUSY;
- outb(LDN, pdata->base_port + ADDR_PORT);
- outb(pdata->index, pdata->base_port + DATA_PORT);
- outb(RS485, pdata->base_port + ADDR_PORT);
- outb(config, pdata->base_port + DATA_PORT);
+ sio_write_reg(pdata, LDN, pdata->index);
+ sio_write_reg(pdata, RS485, config);
fintek_8250_exit_key(pdata->base_port);
port->rs485 = *rs485;
@@ -139,40 +214,90 @@ static int fintek_8250_rs485_config(struct uart_port *port,
return 0;
}
-static int find_base_port(struct fintek_8250 *pdata, u16 io_address)
+static void fintek_8250_set_irq_mode(struct fintek_8250 *pdata, bool is_level)
+{
+ sio_write_reg(pdata, LDN, pdata->index);
+
+ switch (pdata->pid) {
+ case CHIP_ID_F81866:
+ sio_write_mask_reg(pdata, F81866_FIFO_CTRL, F81866_IRQ_MODE1,
+ 0);
+ /* fall through */
+ case CHIP_ID_F81865:
+ sio_write_mask_reg(pdata, F81866_IRQ_MODE, F81866_IRQ_SHARE,
+ F81866_IRQ_SHARE);
+ sio_write_mask_reg(pdata, F81866_IRQ_MODE, F81866_IRQ_MODE0,
+ is_level ? 0 : F81866_IRQ_MODE0);
+ break;
+
+ case CHIP_ID_F81216AD:
+ case CHIP_ID_F81216H:
+ case CHIP_ID_F81216:
+ sio_write_mask_reg(pdata, FINTEK_IRQ_MODE, IRQ_SHARE,
+ IRQ_SHARE);
+ sio_write_mask_reg(pdata, FINTEK_IRQ_MODE, IRQ_MODE_MASK,
+ is_level ? IRQ_LEVEL_LOW : IRQ_EDGE_HIGH);
+ break;
+ }
+}
+
+static void fintek_8250_set_max_fifo(struct fintek_8250 *pdata)
+{
+ switch (pdata->pid) {
+ case CHIP_ID_F81216H: /* 128Bytes FIFO */
+ case CHIP_ID_F81866:
+ sio_write_mask_reg(pdata, FIFO_CTRL,
+ FIFO_MODE_MASK | RXFTHR_MODE_MASK,
+ FIFO_MODE_128 | RXFTHR_MODE_4X);
+ break;
+
+ default: /* Default 16Bytes FIFO */
+ break;
+ }
+}
+
+static int probe_setup_port(struct fintek_8250 *pdata, u16 io_address,
+ unsigned int irq)
{
static const u16 addr[] = {0x4e, 0x2e};
static const u8 keys[] = {0x77, 0xa0, 0x87, 0x67};
- int i, j, k;
+ struct irq_data *irq_data;
+ bool level_mode = false;
+ int i, j, k, min, max;
for (i = 0; i < ARRAY_SIZE(addr); i++) {
for (j = 0; j < ARRAY_SIZE(keys); j++) {
+ pdata->base_port = addr[i];
+ pdata->key = keys[j];
if (fintek_8250_enter_key(addr[i], keys[j]))
continue;
- if (fintek_8250_check_id(addr[i])) {
+ if (fintek_8250_check_id(pdata) ||
+ fintek_8250_get_ldn_range(pdata, &min, &max)) {
fintek_8250_exit_key(addr[i]);
continue;
}
- for (k = 0; k < 4; k++) {
+ for (k = min; k < max; k++) {
u16 aux;
- outb(LDN, addr[i] + ADDR_PORT);
- outb(k, addr[i] + DATA_PORT);
-
- outb(IO_ADDR1, addr[i] + ADDR_PORT);
- aux = inb(addr[i] + DATA_PORT);
- outb(IO_ADDR2, addr[i] + ADDR_PORT);
- aux |= inb(addr[i] + DATA_PORT) << 8;
+ sio_write_reg(pdata, LDN, k);
+ aux = sio_read_reg(pdata, IO_ADDR1);
+ aux |= sio_read_reg(pdata, IO_ADDR2) << 8;
if (aux != io_address)
continue;
- fintek_8250_exit_key(addr[i]);
- pdata->key = keys[j];
- pdata->base_port = addr[i];
pdata->index = k;
+ irq_data = irq_get_irq_data(irq);
+ if (irq_data)
+ level_mode =
+ irqd_is_level_type(irq_data);
+
+ fintek_8250_set_irq_mode(pdata, level_mode);
+ fintek_8250_set_max_fifo(pdata);
+ fintek_8250_exit_key(addr[i]);
+
return 0;
}
@@ -183,39 +308,29 @@ static int find_base_port(struct fintek_8250 *pdata, u16 io_address)
return -ENODEV;
}
-static int fintek_8250_set_irq_mode(struct fintek_8250 *pdata, bool level_mode)
+static void fintek_8250_set_rs485_handler(struct uart_8250_port *uart)
{
- int status;
- u8 tmp;
+ struct fintek_8250 *pdata = uart->port.private_data;
- status = fintek_8250_enter_key(pdata->base_port, pdata->key);
- if (status)
- return status;
+ switch (pdata->pid) {
+ case CHIP_ID_F81216AD:
+ case CHIP_ID_F81216H:
+ case CHIP_ID_F81866:
+ case CHIP_ID_F81865:
+ uart->port.rs485_config = fintek_8250_rs485_config;
+ break;
- outb(LDN, pdata->base_port + ADDR_PORT);
- outb(pdata->index, pdata->base_port + DATA_PORT);
-
- outb(FINTEK_IRQ_MODE, pdata->base_port + ADDR_PORT);
- tmp = inb(pdata->base_port + DATA_PORT);
-
- tmp &= ~IRQ_MODE_MASK;
- tmp |= IRQ_SHARE;
- if (!level_mode)
- tmp |= IRQ_EDGE_HIGH;
-
- outb(tmp, pdata->base_port + DATA_PORT);
- fintek_8250_exit_key(pdata->base_port);
- return 0;
+ default: /* No RS485 Auto direction functional */
+ break;
+ }
}
int fintek_8250_probe(struct uart_8250_port *uart)
{
struct fintek_8250 *pdata;
struct fintek_8250 probe_data;
- struct irq_data *irq_data = irq_get_irq_data(uart->port.irq);
- bool level_mode = irqd_is_level_type(irq_data);
- if (find_base_port(&probe_data, uart->port.iobase))
+ if (probe_setup_port(&probe_data, uart->port.iobase, uart->port.irq))
return -ENODEV;
pdata = devm_kzalloc(uart->port.dev, sizeof(*pdata), GFP_KERNEL);
@@ -223,8 +338,8 @@ int fintek_8250_probe(struct uart_8250_port *uart)
return -ENOMEM;
memcpy(pdata, &probe_data, sizeof(probe_data));
- uart->port.rs485_config = fintek_8250_rs485_config;
uart->port.private_data = pdata;
+ fintek_8250_set_rs485_handler(uart);
- return fintek_8250_set_irq_mode(pdata, level_mode);
+ return 0;
}
diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c
index b992346..f607946 100644
--- a/drivers/tty/serial/8250/8250_lpss.c
+++ b/drivers/tty/serial/8250/8250_lpss.c
@@ -174,7 +174,7 @@ static void qrk_serial_setup_dma(struct lpss8250 *lpss, struct uart_port *port)
int ret;
chip->dev = &pdev->dev;
- chip->irq = pdev->irq;
+ chip->irq = pci_irq_vector(pdev, 0);
chip->regs = pci_ioremap_bar(pdev, 1);
chip->pdata = &qrk_serial_dma_pdata;
@@ -183,6 +183,9 @@ static void qrk_serial_setup_dma(struct lpss8250 *lpss, struct uart_port *port)
if (ret)
return;
+ pci_set_master(pdev);
+ pci_try_set_mwi(pdev);
+
/* Special DMA address for UART */
dma->rx_dma_addr = 0xfffff000;
dma->tx_dma_addr = 0xfffff000;
@@ -280,8 +283,6 @@ static int lpss8250_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (ret)
return ret;
- pci_set_master(pdev);
-
lpss = devm_kzalloc(&pdev->dev, sizeof(*lpss), GFP_KERNEL);
if (!lpss)
return -ENOMEM;
diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index 7a8b5fc..d25ab1c 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -332,8 +332,6 @@ static const struct of_device_id of_platform_serial_table[] = {
.data = (void *)PORT_ALTR_16550_F128, },
{ .compatible = "mrvl,mmp-uart",
.data = (void *)PORT_XSCALE, },
- { .compatible = "mrvl,pxa-uart",
- .data = (void *)PORT_XSCALE, },
{ /* end of list */ },
};
MODULE_DEVICE_TABLE(of, of_platform_serial_table);
diff --git a/drivers/tty/serial/8250/8250_pxa.c b/drivers/tty/serial/8250/8250_pxa.c
new file mode 100644
index 0000000..3b08f34
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_pxa.c
@@ -0,0 +1,190 @@
+/*
+ * drivers/tty/serial/8250/8250_pxa.c -- driver for PXA on-board UARTS
+ * Copyright: (C) 2013 Sergei Ianovich <ynvich@gmail.com>
+ *
+ * replaces drivers/serial/pxa.c by Nicolas Pitre
+ * Created: Feb 20, 2003
+ * Copyright: (C) 2003 Monta Vista Software, Inc.
+ *
+ * Based on drivers/serial/8250.c by Russell King.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_core.h>
+#include <linux/serial_reg.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+
+#include "8250.h"
+
+struct pxa8250_data {
+ int line;
+ struct clk *clk;
+};
+
+#ifdef CONFIG_PM
+static int serial_pxa_suspend(struct device *dev)
+{
+ struct pxa8250_data *data = dev_get_drvdata(dev);
+
+ serial8250_suspend_port(data->line);
+
+ return 0;
+}
+
+static int serial_pxa_resume(struct device *dev)
+{
+ struct pxa8250_data *data = dev_get_drvdata(dev);
+
+ serial8250_resume_port(data->line);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops serial_pxa_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(serial_pxa_suspend, serial_pxa_resume)
+};
+
+static const struct of_device_id serial_pxa_dt_ids[] = {
+ { .compatible = "mrvl,pxa-uart", },
+ { .compatible = "mrvl,mmp-uart", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, serial_pxa_dt_ids);
+
+/* Uart divisor latch write */
+static void serial_pxa_dl_write(struct uart_8250_port *up, int value)
+{
+ unsigned int dll;
+
+ serial_out(up, UART_DLL, value & 0xff);
+ /*
+ * work around Erratum #74 according to Marvel(R) PXA270M Processor
+ * Specification Update (April 19, 2010)
+ */
+ dll = serial_in(up, UART_DLL);
+ WARN_ON(dll != (value & 0xff));
+
+ serial_out(up, UART_DLM, value >> 8 & 0xff);
+}
+
+
+static void serial_pxa_pm(struct uart_port *port, unsigned int state,
+ unsigned int oldstate)
+{
+ struct pxa8250_data *data = port->private_data;
+
+ if (!state)
+ clk_prepare_enable(data->clk);
+ else
+ clk_disable_unprepare(data->clk);
+}
+
+static int serial_pxa_probe(struct platform_device *pdev)
+{
+ struct uart_8250_port uart = {};
+ struct pxa8250_data *data;
+ struct resource *mmres, *irqres;
+ int ret;
+
+ mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ irqres = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!mmres || !irqres)
+ return -ENODEV;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(data->clk))
+ return PTR_ERR(data->clk);
+
+ ret = clk_prepare(data->clk);
+ if (ret)
+ return ret;
+
+ uart.port.type = PORT_XSCALE;
+ uart.port.iotype = UPIO_MEM32;
+ uart.port.mapbase = mmres->start;
+ uart.port.regshift = 2;
+ uart.port.irq = irqres->start;
+ uart.port.fifosize = 64;
+ uart.port.flags = UPF_IOREMAP | UPF_SKIP_TEST;
+ uart.port.dev = &pdev->dev;
+ uart.port.uartclk = clk_get_rate(data->clk);
+ uart.port.pm = serial_pxa_pm;
+ uart.port.private_data = data;
+ uart.dl_write = serial_pxa_dl_write;
+
+ ret = serial8250_register_8250_port(&uart);
+ if (ret < 0)
+ goto err_clk;
+
+ data->line = ret;
+
+ platform_set_drvdata(pdev, data);
+
+ return 0;
+
+ err_clk:
+ clk_unprepare(data->clk);
+ return ret;
+}
+
+static int serial_pxa_remove(struct platform_device *pdev)
+{
+ struct pxa8250_data *data = platform_get_drvdata(pdev);
+
+ serial8250_unregister_port(data->line);
+
+ clk_unprepare(data->clk);
+
+ return 0;
+}
+
+static struct platform_driver serial_pxa_driver = {
+ .probe = serial_pxa_probe,
+ .remove = serial_pxa_remove,
+
+ .driver = {
+ .name = "pxa2xx-uart",
+ .pm = &serial_pxa_pm_ops,
+ .of_match_table = serial_pxa_dt_ids,
+ },
+};
+
+module_platform_driver(serial_pxa_driver);
+
+static int __init early_serial_pxa_setup(struct earlycon_device *device,
+ const char *options)
+{
+ struct uart_port *port = &device->port;
+
+ if (!(device->port.membase || device->port.iobase))
+ return -ENODEV;
+
+ port->regshift = 2;
+ return early_serial8250_setup(device, NULL);
+}
+OF_EARLYCON_DECLARE(early_pxa, "mrvl,pxa-uart", early_serial_pxa_setup);
+
+MODULE_AUTHOR("Sergei Ianovich");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa2xx-uart");
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index 8998347..0b8b6740 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -439,6 +439,16 @@
This driver can also be built as a module. The module will be called
8250_moxa. If you want to do that, say M here.
+config SERIAL_8250_PXA
+ tristate "PXA serial port support"
+ depends on SERIAL_8250
+ depends on ARCH_PXA || ARCH_MMP
+ help
+ If you have a machine based on an Intel XScale PXA2xx CPU you can
+ enable its onboard serial ports by enabling this option. The option is
+ applicable to both devicetree and legacy boards, and early console is
+ part of its support.
+
config SERIAL_OF_PLATFORM
tristate "Devicetree based probing for 8250 ports"
depends on SERIAL_8250 && OF
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
index 276c6fb..850e721 100644
--- a/drivers/tty/serial/8250/Makefile
+++ b/drivers/tty/serial/8250/Makefile
@@ -31,6 +31,7 @@
obj-$(CONFIG_SERIAL_8250_LPSS) += 8250_lpss.o
obj-$(CONFIG_SERIAL_8250_MID) += 8250_mid.o
obj-$(CONFIG_SERIAL_8250_MOXA) += 8250_moxa.o
+obj-$(CONFIG_SERIAL_8250_PXA) += 8250_pxa.o
obj-$(CONFIG_SERIAL_OF_PLATFORM) += 8250_of.o
CFLAGS_8250_ingenic.o += -I$(srctree)/scripts/dtc/libfdt
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 25c1d7b..5a7c9d0 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -438,17 +438,27 @@
Say Y here if you want to support a serial console on a Marvell MPSC.
config SERIAL_PXA
- bool "PXA serial port support"
+ bool "PXA serial port support (DEPRECATED)"
depends on ARCH_PXA || ARCH_MMP
select SERIAL_CORE
+ select SERIAL_8250_PXA if SERIAL_8250=y
+ select SERIAL_PXA_NON8250 if !SERIAL_8250=y
help
If you have a machine based on an Intel XScale PXA2xx CPU you
can enable its onboard serial ports by enabling this option.
+ Unless you have a specific need, you should use SERIAL_8250_PXA
+ instead of this.
+
+config SERIAL_PXA_NON8250
+ bool
+ depends on !SERIAL_8250
+
config SERIAL_PXA_CONSOLE
- bool "Console on PXA serial port"
+ bool "Console on PXA serial port (DEPRECATED)"
depends on SERIAL_PXA
select SERIAL_CORE_CONSOLE
+ select SERIAL_8250_CONSOLE if SERIAL_8250=y
help
If you have enabled the serial port on the Intel XScale PXA
CPU you can make it the console by answering Y to this option.
@@ -460,6 +470,9 @@
your boot loader (lilo or loadlin) about how to pass options to the
kernel at boot time.)
+ Unless you have a specific need, you should use SERIAL_8250_PXA
+ and SERIAL_8250_CONSOLE instead of this.
+
config SERIAL_SA1100
bool "SA1100 serial port support"
depends on ARCH_SA1100
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index 1278d37..2d6288b 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -23,7 +23,7 @@
obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o
obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o
obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o
-obj-$(CONFIG_SERIAL_PXA) += pxa.o
+obj-$(CONFIG_SERIAL_PXA_NON8250) += pxa.o
obj-$(CONFIG_SERIAL_PNX8XXX) += pnx8xxx_uart.o
obj-$(CONFIG_SERIAL_SA1100) += sa1100.o
obj-$(CONFIG_SERIAL_BCM63XX) += bcm63xx_uart.o
@@ -62,13 +62,11 @@
obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o
obj-$(CONFIG_SERIAL_MSM) += msm_serial.o
obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
-obj-$(CONFIG_SERIAL_KGDB_NMI) += kgdb_nmi.o
obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o
obj-$(CONFIG_SERIAL_OMAP) += omap-serial.o
obj-$(CONFIG_SERIAL_ALTERA_UART) += altera_uart.o
obj-$(CONFIG_SERIAL_ST_ASC) += st-asc.o
obj-$(CONFIG_SERIAL_TILEGX) += tilegx.o
-obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o
obj-$(CONFIG_SERIAL_QE) += ucc_uart.o
obj-$(CONFIG_SERIAL_TIMBERDALE) += timbuart.o
obj-$(CONFIG_SERIAL_GRLIB_GAISLER_APBUART) += apbuart.o
@@ -96,3 +94,6 @@
# GPIOLIB helpers for modem control lines
obj-$(CONFIG_SERIAL_MCTRL_GPIO) += serial_mctrl_gpio.o
+
+obj-$(CONFIG_SERIAL_KGDB_NMI) += kgdb_nmi.o
+obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index e2c33b9..c00ab22 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2315,12 +2315,67 @@ static int __init pl011_console_setup(struct console *co, char *options)
return uart_set_options(&uap->port, co, baud, parity, bits, flow);
}
+/**
+ * pl011_console_match - non-standard console matching
+ * @co: registering console
+ * @name: name from console command line
+ * @idx: index from console command line
+ * @options: ptr to option string from console command line
+ *
+ * Only attempts to match console command lines of the form:
+ * console=pl011,mmio|mmio32,<addr>[,<options>]
+ * console=pl011,0x<addr>[,<options>]
+ * This form is used to register an initial earlycon boot console and
+ * replace it with the amba_console at pl011 driver init.
+ *
+ * Performs console setup for a match (as required by interface)
+ * If no <options> are specified, then assume the h/w is already setup.
+ *
+ * Returns 0 if console matches; otherwise non-zero to use default matching
+ */
+static int __init pl011_console_match(struct console *co, char *name, int idx,
+ char *options)
+{
+ unsigned char iotype;
+ resource_size_t addr;
+ int i;
+
+ if (strcmp(name, "pl011") != 0)
+ return -ENODEV;
+
+ if (uart_parse_earlycon(options, &iotype, &addr, &options))
+ return -ENODEV;
+
+ if (iotype != UPIO_MEM && iotype != UPIO_MEM32)
+ return -ENODEV;
+
+ /* try to match the port specified on the command line */
+ for (i = 0; i < ARRAY_SIZE(amba_ports); i++) {
+ struct uart_port *port;
+
+ if (!amba_ports[i])
+ continue;
+
+ port = &amba_ports[i]->port;
+
+ if (port->mapbase != addr)
+ continue;
+
+ co->index = i;
+ port->cons = co;
+ return pl011_console_setup(co, options);
+ }
+
+ return -ENODEV;
+}
+
static struct uart_driver amba_reg;
static struct console amba_console = {
.name = "ttyAMA",
.write = pl011_console_write,
.device = uart_console_device,
.setup = pl011_console_setup,
+ .match = pl011_console_match,
.flags = CON_PRINTBUFFER,
.index = -1,
.data = &amba_reg,
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 76103f2..a1c6519 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -430,6 +430,65 @@ static void lpuart_flush_buffer(struct uart_port *port)
}
}
+#if defined(CONFIG_CONSOLE_POLL)
+
+static int lpuart_poll_init(struct uart_port *port)
+{
+ struct lpuart_port *sport = container_of(port,
+ struct lpuart_port, port);
+ unsigned long flags;
+ unsigned char temp;
+
+ sport->port.fifosize = 0;
+
+ spin_lock_irqsave(&sport->port.lock, flags);
+ /* Disable Rx & Tx */
+ writeb(0, sport->port.membase + UARTCR2);
+
+ temp = readb(sport->port.membase + UARTPFIFO);
+ /* Enable Rx and Tx FIFO */
+ writeb(temp | UARTPFIFO_RXFE | UARTPFIFO_TXFE,
+ sport->port.membase + UARTPFIFO);
+
+ /* flush Tx and Rx FIFO */
+ writeb(UARTCFIFO_TXFLUSH | UARTCFIFO_RXFLUSH,
+ sport->port.membase + UARTCFIFO);
+
+ /* explicitly clear RDRF */
+ if (readb(sport->port.membase + UARTSR1) & UARTSR1_RDRF) {
+ readb(sport->port.membase + UARTDR);
+ writeb(UARTSFIFO_RXUF, sport->port.membase + UARTSFIFO);
+ }
+
+ writeb(0, sport->port.membase + UARTTWFIFO);
+ writeb(1, sport->port.membase + UARTRWFIFO);
+
+ /* Enable Rx and Tx */
+ writeb(UARTCR2_RE | UARTCR2_TE, sport->port.membase + UARTCR2);
+ spin_unlock_irqrestore(&sport->port.lock, flags);
+
+ return 0;
+}
+
+static void lpuart_poll_put_char(struct uart_port *port, unsigned char c)
+{
+ /* drain */
+ while (!(readb(port->membase + UARTSR1) & UARTSR1_TDRE))
+ barrier();
+
+ writeb(c, port->membase + UARTDR);
+}
+
+static int lpuart_poll_get_char(struct uart_port *port)
+{
+ if (!(readb(port->membase + UARTSR1) & UARTSR1_RDRF))
+ return NO_POLL_CHAR;
+
+ return readb(port->membase + UARTDR);
+}
+
+#endif
+
static inline void lpuart_transmit_buffer(struct lpuart_port *sport)
{
struct circ_buf *xmit = &sport->port.state->xmit;
@@ -1595,6 +1654,11 @@ static const struct uart_ops lpuart_pops = {
.config_port = lpuart_config_port,
.verify_port = lpuart_verify_port,
.flush_buffer = lpuart_flush_buffer,
+#if defined(CONFIG_CONSOLE_POLL)
+ .poll_init = lpuart_poll_init,
+ .poll_get_char = lpuart_poll_get_char,
+ .poll_put_char = lpuart_poll_put_char,
+#endif
};
static const struct uart_ops lpuart32_pops = {
diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index cd9d9e8..b9dd787 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -925,7 +925,9 @@ static struct platform_driver serial_pxa_driver = {
},
};
-static int __init serial_pxa_init(void)
+
+/* 8250 driver for PXA serial ports should be used */
+static int __deprecated __init serial_pxa_init(void)
{
int ret;
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index fb06725..7933954 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1264,7 +1264,7 @@ static int sc16is7xx_probe(struct device *dev,
/* Setup interrupt */
ret = devm_request_irq(dev, irq, sc16is7xx_irq,
- IRQF_ONESHOT | flags, dev_name(dev), s);
+ flags, dev_name(dev), s);
if (!ret)
return 0;
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 8c3bf3d..6232644 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -315,38 +315,27 @@ void schedule_console_callback(void)
schedule_work(&console_work);
}
-static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
+static void con_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
+ enum con_scroll dir, unsigned int nr)
{
- unsigned short *d, *s;
+ u16 *clear, *d, *s;
- if (t+nr >= b)
+ if (t + nr >= b)
nr = b - t - 1;
if (b > vc->vc_rows || t >= b || nr < 1)
return;
- if (con_is_visible(vc) && vc->vc_sw->con_scroll(vc, t, b, SM_UP, nr))
+ if (con_is_visible(vc) && vc->vc_sw->con_scroll(vc, t, b, dir, nr))
return;
- d = (unsigned short *)(vc->vc_origin + vc->vc_size_row * t);
- s = (unsigned short *)(vc->vc_origin + vc->vc_size_row * (t + nr));
+
+ s = clear = (u16 *)(vc->vc_origin + vc->vc_size_row * t);
+ d = (u16 *)(vc->vc_origin + vc->vc_size_row * (t + nr));
+
+ if (dir == SM_UP) {
+ clear = s + (b - t - nr) * vc->vc_cols;
+ swap(s, d);
+ }
scr_memmovew(d, s, (b - t - nr) * vc->vc_size_row);
- scr_memsetw(d + (b - t - nr) * vc->vc_cols, vc->vc_video_erase_char,
- vc->vc_size_row * nr);
-}
-
-static void scrdown(struct vc_data *vc, unsigned int t, unsigned int b, int nr)
-{
- unsigned short *s;
- unsigned int step;
-
- if (t+nr >= b)
- nr = b - t - 1;
- if (b > vc->vc_rows || t >= b || nr < 1)
- return;
- if (con_is_visible(vc) && vc->vc_sw->con_scroll(vc, t, b, SM_DOWN, nr))
- return;
- s = (unsigned short *)(vc->vc_origin + vc->vc_size_row * t);
- step = vc->vc_cols * nr;
- scr_memmovew(s + step, s, (b - t - nr) * vc->vc_size_row);
- scr_memsetw(s, vc->vc_video_erase_char, 2 * step);
+ scr_memsetw(clear, vc->vc_video_erase_char, vc->vc_size_row * nr);
}
static void do_update_region(struct vc_data *vc, unsigned long start, int count)
@@ -1120,7 +1109,7 @@ static void lf(struct vc_data *vc)
* if below scrolling region
*/
if (vc->vc_y + 1 == vc->vc_bottom)
- scrup(vc, vc->vc_top, vc->vc_bottom, 1);
+ con_scroll(vc, vc->vc_top, vc->vc_bottom, SM_UP, 1);
else if (vc->vc_y < vc->vc_rows - 1) {
vc->vc_y++;
vc->vc_pos += vc->vc_size_row;
@@ -1135,7 +1124,7 @@ static void ri(struct vc_data *vc)
* if above scrolling region
*/
if (vc->vc_y == vc->vc_top)
- scrdown(vc, vc->vc_top, vc->vc_bottom, 1);
+ con_scroll(vc, vc->vc_top, vc->vc_bottom, SM_DOWN, 1);
else if (vc->vc_y > 0) {
vc->vc_y--;
vc->vc_pos -= vc->vc_size_row;
@@ -1631,7 +1620,7 @@ static void csi_L(struct vc_data *vc, unsigned int nr)
nr = vc->vc_rows - vc->vc_y;
else if (!nr)
nr = 1;
- scrdown(vc, vc->vc_y, vc->vc_bottom, nr);
+ con_scroll(vc, vc->vc_y, vc->vc_bottom, SM_DOWN, nr);
vc->vc_need_wrap = 0;
}
@@ -1652,7 +1641,7 @@ static void csi_M(struct vc_data *vc, unsigned int nr)
nr = vc->vc_rows - vc->vc_y;
else if (!nr)
nr=1;
- scrup(vc, vc->vc_y, vc->vc_bottom, nr);
+ con_scroll(vc, vc->vc_y, vc->vc_bottom, SM_UP, nr);
vc->vc_need_wrap = 0;
}
@@ -4295,6 +4284,46 @@ void vcs_scr_updated(struct vc_data *vc)
notify_update(vc);
}
+void vc_scrolldelta_helper(struct vc_data *c, int lines,
+ unsigned int rolled_over, void *base, unsigned int size)
+{
+ unsigned long ubase = (unsigned long)base;
+ ptrdiff_t scr_end = (void *)c->vc_scr_end - base;
+ ptrdiff_t vorigin = (void *)c->vc_visible_origin - base;
+ ptrdiff_t origin = (void *)c->vc_origin - base;
+ int margin = c->vc_size_row * 4;
+ int from, wrap, from_off, avail;
+
+ /* Turn scrollback off */
+ if (!lines) {
+ c->vc_visible_origin = c->vc_origin;
+ return;
+ }
+
+ /* Do we have already enough to allow jumping from 0 to the end? */
+ if (rolled_over > scr_end + margin) {
+ from = scr_end;
+ wrap = rolled_over + c->vc_size_row;
+ } else {
+ from = 0;
+ wrap = size;
+ }
+
+ from_off = (vorigin - from + wrap) % wrap + lines * c->vc_size_row;
+ avail = (origin - from + wrap) % wrap;
+
+ /* Only a little piece would be left? Show all incl. the piece! */
+ if (avail < 2 * margin)
+ margin = 0;
+ if (from_off < margin)
+ from_off = 0;
+ if (from_off > avail - margin)
+ from_off = avail;
+
+ c->vc_visible_origin = ubase + (from + from_off) % wrap;
+}
+EXPORT_SYMBOL_GPL(vc_scrolldelta_helper);
+
/*
* Visible symbols for modules
*/
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index 460cebf..4b5777e 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -686,8 +686,6 @@ static void
sisusbcon_scrolldelta(struct vc_data *c, int lines)
{
struct sisusb_usb_data *sisusb;
- int margin = c->vc_size_row * 4;
- int ul, we, p, st;
sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
if (!sisusb)
@@ -700,39 +698,8 @@ sisusbcon_scrolldelta(struct vc_data *c, int lines)
return;
}
- if (!lines) /* Turn scrollback off */
- c->vc_visible_origin = c->vc_origin;
- else {
-
- if (sisusb->con_rolled_over >
- (c->vc_scr_end - sisusb->scrbuf) + margin) {
-
- ul = c->vc_scr_end - sisusb->scrbuf;
- we = sisusb->con_rolled_over + c->vc_size_row;
-
- } else {
-
- ul = 0;
- we = sisusb->scrbuf_size;
-
- }
-
- p = (c->vc_visible_origin - sisusb->scrbuf - ul + we) % we +
- lines * c->vc_size_row;
-
- st = (c->vc_origin - sisusb->scrbuf - ul + we) % we;
-
- if (st < 2 * margin)
- margin = 0;
-
- if (p < margin)
- p = 0;
-
- if (p > st - margin)
- p = st;
-
- c->vc_visible_origin = sisusb->scrbuf + (p + ul) % we;
- }
+ vc_scrolldelta_helper(c, lines, sisusb->con_rolled_over,
+ (void *)sisusb->scrbuf, sisusb->scrbuf_size);
sisusbcon_set_start_address(sisusb, c);
@@ -808,9 +775,10 @@ sisusbcon_cursor(struct vc_data *c, int mode)
mutex_unlock(&sisusb->lock);
}
-static int
+static bool
sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
- int t, int b, int dir, int lines)
+ unsigned int t, unsigned int b, enum con_scroll dir,
+ unsigned int lines)
{
int cols = sisusb->sisusb_num_columns;
int length = ((b - t) * cols) * 2;
@@ -852,8 +820,9 @@ sisusbcon_scroll_area(struct vc_data *c, struct sisusb_usb_data *sisusb,
}
/* Interface routine */
-static int
-sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
+static bool
+sisusbcon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+ enum con_scroll dir, unsigned int lines)
{
struct sisusb_usb_data *sisusb;
u16 eattr = c->vc_video_erase_char;
@@ -870,17 +839,17 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
*/
if (!lines)
- return 1;
+ return true;
sisusb = sisusb_get_sisusb_lock_and_check(c->vc_num);
if (!sisusb)
- return 0;
+ return false;
/* sisusb->lock is down */
if (sisusb_is_inactive(c, sisusb)) {
mutex_unlock(&sisusb->lock);
- return 0;
+ return false;
}
/* Special case */
@@ -971,7 +940,7 @@ sisusbcon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
mutex_unlock(&sisusb->lock);
- return 1;
+ return true;
}
/* Interface routine */
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index b87f5cf..a44f562 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -164,8 +164,6 @@ static void fbcon_putcs(struct vc_data *vc, const unsigned short *s,
int count, int ypos, int xpos);
static void fbcon_clear_margins(struct vc_data *vc, int bottom_only);
static void fbcon_cursor(struct vc_data *vc, int mode);
-static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
- int count);
static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx,
int height, int width);
static int fbcon_switch(struct vc_data *vc);
@@ -1795,15 +1793,15 @@ static inline void fbcon_softback_note(struct vc_data *vc, int t,
softback_curr = softback_in;
}
-static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
- int count)
+static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
+ enum con_scroll dir, unsigned int count)
{
struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
struct display *p = &fb_display[vc->vc_num];
int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK;
if (fbcon_is_inactive(vc, info))
- return -EINVAL;
+ return true;
fbcon_cursor(vc, CM_ERASE);
@@ -1831,7 +1829,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
(b - count)),
vc->vc_video_erase_char,
vc->vc_size_row * count);
- return 1;
+ return true;
break;
case SCROLL_WRAP_MOVE:
@@ -1903,7 +1901,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
(b - count)),
vc->vc_video_erase_char,
vc->vc_size_row * count);
- return 1;
+ return true;
}
break;
@@ -1922,7 +1920,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
t),
vc->vc_video_erase_char,
vc->vc_size_row * count);
- return 1;
+ return true;
break;
case SCROLL_WRAP_MOVE:
@@ -1992,10 +1990,10 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
t),
vc->vc_video_erase_char,
vc->vc_size_row * count);
- return 1;
+ return true;
}
}
- return 0;
+ return false;
}
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index bacbb04..ec192a1 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -488,12 +488,13 @@ static void mdacon_cursor(struct vc_data *c, int mode)
}
}
-static int mdacon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
+static bool mdacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+ enum con_scroll dir, unsigned int lines)
{
u16 eattr = mda_convert_attr(c->vc_video_erase_char);
if (!lines)
- return 0;
+ return false;
if (lines > c->vc_rows) /* maximum realistic size */
lines = c->vc_rows;
@@ -514,7 +515,7 @@ static int mdacon_scroll(struct vc_data *c, int t, int b, int dir, int lines)
break;
}
- return 0;
+ return false;
}
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index e3b9521..1e11614 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -574,8 +574,8 @@ static int newport_font_set(struct vc_data *vc, struct console_font *font, unsig
return newport_set_font(vc->vc_num, font);
}
-static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
- int lines)
+static bool newport_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
+ enum con_scroll dir, unsigned int lines)
{
int count, x, y;
unsigned short *s, *d;
@@ -595,7 +595,7 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
(vc->vc_color & 0xf0) >> 4);
}
npregs->cset.topscan = (topscan - 1) & 0x3ff;
- return 0;
+ return false;
}
count = (b - t - lines) * vc->vc_cols;
@@ -670,7 +670,7 @@ static int newport_scroll(struct vc_data *vc, int t, int b, int dir,
}
}
}
- return 1;
+ return true;
}
static int newport_dummy(struct vc_data *c)
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 3a10ac1..79c9bd8 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -153,12 +153,13 @@ static void sticon_cursor(struct vc_data *conp, int mode)
}
}
-static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
+static bool sticon_scroll(struct vc_data *conp, unsigned int t,
+ unsigned int b, enum con_scroll dir, unsigned int count)
{
struct sti_struct *sti = sticon_sti;
if (vga_is_gfx)
- return 0;
+ return false;
sticon_cursor(conp, CM_ERASE);
@@ -174,7 +175,7 @@ static int sticon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
break;
}
- return 0;
+ return false;
}
static void sticon_init(struct vc_data *c, int init)
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 1157661..c22a562 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -60,15 +60,6 @@ static struct vgastate vgastate;
#define BLANK 0x0020
-#define CAN_LOAD_EGA_FONTS /* undefine if the user must not do this */
-#define CAN_LOAD_PALETTE /* undefine if the user must not do this */
-
-/* You really do _NOT_ want to define this, unless you have buggy
- * Trident VGA which will resize cursor when moving it between column
- * 15 & 16. If you define this and your VGA is OK, inverse bug will
- * appear.
- */
-#undef TRIDENT_GLITCH
#define VGA_FONTWIDTH 8 /* VGA does not support fontwidths != 8 */
/*
* Interface used by the world
@@ -83,14 +74,12 @@ static int vgacon_blank(struct vc_data *c, int blank, int mode_switch);
static void vgacon_scrolldelta(struct vc_data *c, int lines);
static int vgacon_set_origin(struct vc_data *c);
static void vgacon_save_screen(struct vc_data *c);
-static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
- int lines);
static void vgacon_invert_region(struct vc_data *c, u16 * p, int count);
static struct uni_pagedir *vgacon_uni_pagedir;
static int vgacon_refcount;
/* Description of the hardware situation */
-static int vga_init_done __read_mostly;
+static bool vga_init_done;
static unsigned long vga_vram_base __read_mostly; /* Base of video memory */
static unsigned long vga_vram_end __read_mostly; /* End of video memory */
static unsigned int vga_vram_size __read_mostly; /* Size of video memory */
@@ -98,31 +87,31 @@ static u16 vga_video_port_reg __read_mostly; /* Video register select port */
static u16 vga_video_port_val __read_mostly; /* Video register value port */
static unsigned int vga_video_num_columns; /* Number of text columns */
static unsigned int vga_video_num_lines; /* Number of text lines */
-static int vga_can_do_color __read_mostly; /* Do we support colors? */
+static bool vga_can_do_color; /* Do we support colors? */
static unsigned int vga_default_font_height __read_mostly; /* Height of default screen font */
static unsigned char vga_video_type __read_mostly; /* Card type */
-static unsigned char vga_hardscroll_enabled __read_mostly;
-static unsigned char vga_hardscroll_user_enable __read_mostly = 1;
-static unsigned char vga_font_is_default = 1;
+static bool vga_font_is_default = true;
static int vga_vesa_blanked;
-static int vga_palette_blanked;
-static int vga_is_gfx;
-static int vga_512_chars;
+static bool vga_palette_blanked;
+static bool vga_is_gfx;
+static bool vga_512_chars;
static int vga_video_font_height;
static int vga_scan_lines __read_mostly;
static unsigned int vga_rolled_over;
-static int vgacon_text_mode_force;
+static bool vgacon_text_mode_force;
+static bool vga_hardscroll_enabled;
+static bool vga_hardscroll_user_enable = true;
bool vgacon_text_force(void)
{
- return vgacon_text_mode_force ? true : false;
+ return vgacon_text_mode_force;
}
EXPORT_SYMBOL(vgacon_text_force);
static int __init text_mode(char *str)
{
- vgacon_text_mode_force = 1;
+ vgacon_text_mode_force = true;
return 1;
}
@@ -136,7 +125,7 @@ static int __init no_scroll(char *str)
* Braille reader made by F.H. Papenmeier (Germany).
* Use the "no-scroll" bootflag.
*/
- vga_hardscroll_user_enable = vga_hardscroll_enabled = 0;
+ vga_hardscroll_user_enable = vga_hardscroll_enabled = false;
return 1;
}
@@ -159,18 +148,10 @@ static inline void write_vga(unsigned char reg, unsigned int val)
* handlers, thus the write has to be IRQ-atomic.
*/
raw_spin_lock_irqsave(&vga_lock, flags);
-
-#ifndef SLOW_VGA
v1 = reg + (val & 0xff00);
v2 = reg + 1 + ((val << 8) & 0xff00);
outw(v1, vga_video_port_reg);
outw(v2, vga_video_port_reg);
-#else
- outb_p(reg, vga_video_port_reg);
- outb_p(val >> 8, vga_video_port_val);
- outb_p(reg + 1, vga_video_port_reg);
- outb_p(val & 0xff, vga_video_port_val);
-#endif
raw_spin_unlock_irqrestore(&vga_lock, flags);
}
@@ -334,31 +315,8 @@ static void vgacon_restore_screen(struct vc_data *c)
static void vgacon_scrolldelta(struct vc_data *c, int lines)
{
- if (!lines) /* Turn scrollback off */
- c->vc_visible_origin = c->vc_origin;
- else {
- int margin = c->vc_size_row * 4;
- int ul, we, p, st;
-
- if (vga_rolled_over >
- (c->vc_scr_end - vga_vram_base) + margin) {
- ul = c->vc_scr_end - vga_vram_base;
- we = vga_rolled_over + c->vc_size_row;
- } else {
- ul = 0;
- we = vga_vram_size;
- }
- p = (c->vc_visible_origin - vga_vram_base - ul + we) % we +
- lines * c->vc_size_row;
- st = (c->vc_origin - vga_vram_base - ul + we) % we;
- if (st < 2 * margin)
- margin = 0;
- if (p < margin)
- p = 0;
- if (p > st - margin)
- p = st;
- c->vc_visible_origin = vga_vram_base + (p + ul) % we;
- }
+ vc_scrolldelta_helper(c, lines, vga_rolled_over, (void *)vga_vram_base,
+ vga_vram_size);
vga_set_mem_top(c);
}
#endif /* CONFIG_VGACON_SOFT_SCROLLBACK */
@@ -427,7 +385,7 @@ static const char *vgacon_startup(void)
}
} else {
/* If not, it is color. */
- vga_can_do_color = 1;
+ vga_can_do_color = true;
vga_vram_base = 0xb8000;
vga_video_port_reg = VGA_CRT_IC;
vga_video_port_val = VGA_CRT_DC;
@@ -451,18 +409,6 @@ static const char *vgacon_startup(void)
request_resource(&ioport_resource,
&vga_console_resource);
-#ifdef VGA_CAN_DO_64KB
- /*
- * get 64K rather than 32K of video RAM.
- * This doesn't actually work on all "VGA"
- * controllers (it seems like setting MM=01
- * and COE=1 isn't necessarily a good idea)
- */
- vga_vram_base = 0xa0000;
- vga_vram_size = 0x10000;
- outb_p(6, VGA_GFX_I);
- outb_p(6, VGA_GFX_D);
-#endif
/*
* Normalise the palette registers, to point
* the 16 screen colours to the first 16
@@ -542,7 +488,7 @@ static const char *vgacon_startup(void)
if (!vga_init_done) {
vgacon_scrollback_startup();
- vga_init_done = 1;
+ vga_init_done = true;
}
return display_desc;
@@ -634,7 +580,7 @@ static u8 vgacon_build_attr(struct vc_data *c, u8 color, u8 intensity,
static void vgacon_invert_region(struct vc_data *c, u16 * p, int count)
{
- int col = vga_can_do_color;
+ const bool col = vga_can_do_color;
while (count--) {
u16 a = scr_readw(p);
@@ -652,11 +598,6 @@ static void vgacon_set_cursor_size(int xpos, int from, int to)
unsigned long flags;
int curs, cure;
-#ifdef TRIDENT_GLITCH
- if (xpos < 16)
- from--, to--;
-#endif
-
if ((from == cursor_size_lastfrom) && (to == cursor_size_lastto))
return;
cursor_size_lastfrom = from;
@@ -858,12 +799,10 @@ static void vga_set_palette(struct vc_data *vc, const unsigned char *table)
static void vgacon_set_palette(struct vc_data *vc, const unsigned char *table)
{
-#ifdef CAN_LOAD_PALETTE
if (vga_video_type != VIDEO_TYPE_VGAC || vga_palette_blanked
|| !con_is_visible(vc))
return;
vga_set_palette(vc, table);
-#endif
}
/* structure holding original VGA register settings */
@@ -1006,24 +945,24 @@ static int vgacon_blank(struct vc_data *c, int blank, int mode_switch)
}
if (vga_palette_blanked) {
vga_set_palette(c, color_table);
- vga_palette_blanked = 0;
+ vga_palette_blanked = false;
return 0;
}
- vga_is_gfx = 0;
+ vga_is_gfx = false;
/* Tell console.c that it has to restore the screen itself */
return 1;
case 1: /* Normal blanking */
case -1: /* Obsolete */
if (!mode_switch && vga_video_type == VIDEO_TYPE_VGAC) {
vga_pal_blank(&vgastate);
- vga_palette_blanked = 1;
+ vga_palette_blanked = true;
return 0;
}
vgacon_set_origin(c);
scr_memsetw((void *) vga_vram_base, BLANK,
c->vc_screenbuf_size);
if (mode_switch)
- vga_is_gfx = 1;
+ vga_is_gfx = true;
return 1;
default: /* VESA blanking */
if (vga_video_type == VIDEO_TYPE_VGAC) {
@@ -1046,15 +985,14 @@ static int vgacon_blank(struct vc_data *c, int blank, int mode_switch)
* (sizif@botik.yaroslavl.su).
*/
-#ifdef CAN_LOAD_EGA_FONTS
-
#define colourmap 0xa0000
/* Pauline Middelink <middelin@polyware.iaf.nl> reports that we
should use 0xA0000 for the bwmap as well.. */
#define blackwmap 0xa0000
#define cmapsz 8192
-static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512)
+static int vgacon_do_font_op(struct vgastate *state, char *arg, int set,
+ bool ch512)
{
unsigned short video_port_status = vga_video_port_reg + 6;
int font_select = 0x00, beg, i;
@@ -1063,10 +1001,6 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512)
if (vga_video_type != VIDEO_TYPE_EGAM) {
charmap = (char *) VGA_MAP_MEM(colourmap, 0);
beg = 0x0e;
-#ifdef VGA_CAN_DO_64KB
- if (vga_video_type == VIDEO_TYPE_VGAC)
- beg = 0x06;
-#endif
} else {
charmap = (char *) VGA_MAP_MEM(blackwmap, 0);
beg = 0x0a;
@@ -1080,7 +1014,7 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512)
if (!arg)
return -EINVAL; /* Return to default font not supported */
- vga_font_is_default = 0;
+ vga_font_is_default = false;
font_select = ch512 ? 0x04 : 0x00;
#else
/*
@@ -1091,7 +1025,7 @@ static int vgacon_do_font_op(struct vgastate *state,char *arg,int set,int ch512)
if (set) {
vga_font_is_default = !arg;
if (!arg)
- ch512 = 0; /* Default font is always 256 */
+ ch512 = false; /* Default font is always 256 */
font_select = arg ? (ch512 ? 0x0e : 0x0a) : 0x00;
}
@@ -1295,13 +1229,6 @@ static int vgacon_font_get(struct vc_data *c, struct console_font *font)
return vgacon_do_font_op(&vgastate, font->data, 0, vga_512_chars);
}
-#else
-
-#define vgacon_font_set NULL
-#define vgacon_font_get NULL
-
-#endif
-
static int vgacon_resize(struct vc_data *c, unsigned int width,
unsigned int height, unsigned int user)
{
@@ -1350,17 +1277,17 @@ static void vgacon_save_screen(struct vc_data *c)
c->vc_screenbuf_size > vga_vram_size ? vga_vram_size : c->vc_screenbuf_size);
}
-static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
- int lines)
+static bool vgacon_scroll(struct vc_data *c, unsigned int t, unsigned int b,
+ enum con_scroll dir, unsigned int lines)
{
unsigned long oldo;
unsigned int delta;
if (t || b != c->vc_rows || vga_is_gfx || c->vc_mode != KD_TEXT)
- return 0;
+ return false;
if (!vga_hardscroll_enabled || lines >= c->vc_rows / 2)
- return 0;
+ return false;
vgacon_restore_screen(c);
oldo = c->vc_origin;
@@ -1396,7 +1323,7 @@ static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
c->vc_visible_origin = c->vc_origin;
vga_set_mem_top(c);
c->vc_pos = (c->vc_pos - oldo) + c->vc_origin;
- return 1;
+ return true;
}
diff --git a/include/linux/console.h b/include/linux/console.h
index 3672809..508b012 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -28,9 +28,17 @@ struct tty_struct;
#define VT100ID "\033[?1;2c"
#define VT102ID "\033[?6c"
+enum con_scroll {
+ SM_UP,
+ SM_DOWN,
+};
+
/**
* struct consw - callbacks for consoles
*
+ * @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
+ * Return true if no generic handling should be done.
+ * Invoked by csi_M and printing to the console.
* @con_set_palette: sets the palette of the console to @table (optional)
* @con_scrolldelta: the contents of the console should be scrolled by @lines.
* Invoked by user. (optional)
@@ -44,7 +52,9 @@ struct consw {
void (*con_putc)(struct vc_data *, int, int, int);
void (*con_putcs)(struct vc_data *, const unsigned short *, int, int, int);
void (*con_cursor)(struct vc_data *, int);
- int (*con_scroll)(struct vc_data *, int, int, int, int);
+ bool (*con_scroll)(struct vc_data *, unsigned int top,
+ unsigned int bottom, enum con_scroll dir,
+ unsigned int lines);
int (*con_switch)(struct vc_data *);
int (*con_blank)(struct vc_data *, int, int);
int (*con_font_set)(struct vc_data *, struct console_font *, unsigned);
@@ -99,10 +109,6 @@ static inline int con_debug_leave(void)
}
#endif
-/* scroll */
-#define SM_UP (1)
-#define SM_DOWN (2)
-
/* cursor */
#define CM_DRAW (1)
#define CM_ERASE (2)
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index 6abd24f..833fdd4 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -191,5 +191,7 @@ extern void vt_set_led_state(int console, int leds);
extern void vt_kbd_con_start(int console);
extern void vt_kbd_con_stop(int console);
+void vc_scrolldelta_helper(struct vc_data *c, int lines,
+ unsigned int rolled_over, void *_base, unsigned int size);
#endif /* _VT_KERN_H */