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path: root/drivers/tty/goldfish.c
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Diffstat (limited to 'drivers/tty/goldfish.c')
-rw-r--r--drivers/tty/goldfish.c60
1 files changed, 30 insertions, 30 deletions
diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c
index c8c5cdfc5e19..d02de3f0326f 100644
--- a/drivers/tty/goldfish.c
+++ b/drivers/tty/goldfish.c
@@ -61,13 +61,13 @@ static void do_rw_io(struct goldfish_tty *qtty,
spin_lock_irqsave(&qtty->lock, irq_flags);
gf_write_ptr((void *)address, base + GOLDFISH_TTY_REG_DATA_PTR,
base + GOLDFISH_TTY_REG_DATA_PTR_HIGH);
- writel(count, base + GOLDFISH_TTY_REG_DATA_LEN);
+ gf_iowrite32(count, base + GOLDFISH_TTY_REG_DATA_LEN);
if (is_write)
- writel(GOLDFISH_TTY_CMD_WRITE_BUFFER,
+ gf_iowrite32(GOLDFISH_TTY_CMD_WRITE_BUFFER,
base + GOLDFISH_TTY_REG_CMD);
else
- writel(GOLDFISH_TTY_CMD_READ_BUFFER,
+ gf_iowrite32(GOLDFISH_TTY_CMD_READ_BUFFER,
base + GOLDFISH_TTY_REG_CMD);
spin_unlock_irqrestore(&qtty->lock, irq_flags);
@@ -142,7 +142,7 @@ static irqreturn_t goldfish_tty_interrupt(int irq, void *dev_id)
unsigned char *buf;
u32 count;
- count = readl(base + GOLDFISH_TTY_REG_BYTES_READY);
+ count = gf_ioread32(base + GOLDFISH_TTY_REG_BYTES_READY);
if (count == 0)
return IRQ_NONE;
@@ -151,7 +151,7 @@ static irqreturn_t goldfish_tty_interrupt(int irq, void *dev_id)
address = (unsigned long)(void *)buf;
goldfish_tty_rw(qtty, address, count, 0);
- tty_schedule_flip(&qtty->port);
+ tty_flip_buffer_push(&qtty->port);
return IRQ_HANDLED;
}
@@ -159,7 +159,7 @@ static int goldfish_tty_activate(struct tty_port *port, struct tty_struct *tty)
{
struct goldfish_tty *qtty = container_of(port, struct goldfish_tty,
port);
- writel(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
+ gf_iowrite32(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
return 0;
}
@@ -167,7 +167,7 @@ static void goldfish_tty_shutdown(struct tty_port *port)
{
struct goldfish_tty *qtty = container_of(port, struct goldfish_tty,
port);
- writel(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
+ gf_iowrite32(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_REG_CMD);
}
static int goldfish_tty_open(struct tty_struct *tty, struct file *filp)
@@ -193,16 +193,16 @@ static int goldfish_tty_write(struct tty_struct *tty, const unsigned char *buf,
return count;
}
-static int goldfish_tty_write_room(struct tty_struct *tty)
+static unsigned int goldfish_tty_write_room(struct tty_struct *tty)
{
return 0x10000;
}
-static int goldfish_tty_chars_in_buffer(struct tty_struct *tty)
+static unsigned int goldfish_tty_chars_in_buffer(struct tty_struct *tty)
{
struct goldfish_tty *qtty = &goldfish_ttys[tty->index];
void __iomem *base = qtty->base;
- return readl(base + GOLDFISH_TTY_REG_BYTES_READY);
+ return gf_ioread32(base + GOLDFISH_TTY_REG_BYTES_READY);
}
static void goldfish_tty_console_write(struct console *co, const char *b,
@@ -253,18 +253,18 @@ static int goldfish_tty_create_driver(void)
ret = -ENOMEM;
goto err_alloc_goldfish_ttys_failed;
}
- tty = alloc_tty_driver(goldfish_tty_line_count);
- if (tty == NULL) {
- ret = -ENOMEM;
- goto err_alloc_tty_driver_failed;
+ tty = tty_alloc_driver(goldfish_tty_line_count,
+ TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
+ TTY_DRIVER_DYNAMIC_DEV);
+ if (IS_ERR(tty)) {
+ ret = PTR_ERR(tty);
+ goto err_tty_alloc_driver_failed;
}
tty->driver_name = "goldfish";
tty->name = "ttyGF";
tty->type = TTY_DRIVER_TYPE_SERIAL;
tty->subtype = SERIAL_TYPE_NORMAL;
tty->init_termios = tty_std_termios;
- tty->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
- TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(tty, &goldfish_tty_ops);
ret = tty_register_driver(tty);
if (ret)
@@ -274,8 +274,8 @@ static int goldfish_tty_create_driver(void)
return 0;
err_tty_register_driver_failed:
- put_tty_driver(tty);
-err_alloc_tty_driver_failed:
+ tty_driver_kref_put(tty);
+err_tty_alloc_driver_failed:
kfree(goldfish_ttys);
goldfish_ttys = NULL;
err_alloc_goldfish_ttys_failed:
@@ -285,7 +285,7 @@ err_alloc_goldfish_ttys_failed:
static void goldfish_tty_delete_driver(void)
{
tty_unregister_driver(goldfish_tty_driver);
- put_tty_driver(goldfish_tty_driver);
+ tty_driver_kref_put(goldfish_tty_driver);
goldfish_tty_driver = NULL;
kfree(goldfish_ttys);
goldfish_ttys = NULL;
@@ -298,7 +298,7 @@ static int goldfish_tty_probe(struct platform_device *pdev)
struct resource *r;
struct device *ttydev;
void __iomem *base;
- u32 irq;
+ int irq;
unsigned int line;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -313,14 +313,12 @@ static int goldfish_tty_probe(struct platform_device *pdev)
return -ENOMEM;
}
- r = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!r) {
- pr_err("goldfish_tty: No IRQ resource available!\n");
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ ret = irq;
goto err_unmap;
}
- irq = r->start;
-
mutex_lock(&goldfish_tty_lock);
if (pdev->id == PLATFORM_DEVID_NONE)
@@ -357,7 +355,7 @@ static int goldfish_tty_probe(struct platform_device *pdev)
* on Ranchu emulator (qemu2) returns 1 here and
* driver will use physical addresses.
*/
- qtty->version = readl(base + GOLDFISH_TTY_REG_VERSION);
+ qtty->version = gf_ioread32(base + GOLDFISH_TTY_REG_VERSION);
/*
* Goldfish TTY device on Ranchu emulator (qemu2)
@@ -376,7 +374,7 @@ static int goldfish_tty_probe(struct platform_device *pdev)
}
}
- writel(GOLDFISH_TTY_CMD_INT_DISABLE, base + GOLDFISH_TTY_REG_CMD);
+ gf_iowrite32(GOLDFISH_TTY_CMD_INT_DISABLE, base + GOLDFISH_TTY_REG_CMD);
ret = request_irq(irq, goldfish_tty_interrupt, IRQF_SHARED,
"goldfish_tty", qtty);
@@ -407,6 +405,7 @@ static int goldfish_tty_probe(struct platform_device *pdev)
err_tty_register_device_failed:
free_irq(irq, qtty);
err_dec_line_count:
+ tty_port_destroy(&qtty->port);
goldfish_tty_current_line_count--;
if (goldfish_tty_current_line_count == 0)
goldfish_tty_delete_driver();
@@ -427,7 +426,8 @@ static int goldfish_tty_remove(struct platform_device *pdev)
tty_unregister_device(goldfish_tty_driver, qtty->console.index);
iounmap(qtty->base);
qtty->base = NULL;
- free_irq(qtty->irq, pdev);
+ free_irq(qtty->irq, qtty);
+ tty_port_destroy(&qtty->port);
goldfish_tty_current_line_count--;
if (goldfish_tty_current_line_count == 0)
goldfish_tty_delete_driver();
@@ -436,9 +436,9 @@ static int goldfish_tty_remove(struct platform_device *pdev)
}
#ifdef CONFIG_GOLDFISH_TTY_EARLY_CONSOLE
-static void gf_early_console_putchar(struct uart_port *port, int ch)
+static void gf_early_console_putchar(struct uart_port *port, unsigned char ch)
{
- __raw_writel(ch, port->membase);
+ gf_iowrite32(ch, port->membase);
}
static void gf_early_write(struct console *con, const char *s, unsigned int n)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.