static void serial_omap_start_tx(struct uart_port *port)
{
struct uart_omap_port *up = to_uart_omap_port(port);
int res;
pm_runtime_get_sync(up->dev);
/* Handle RS-485 */
if (port->rs485.flags & SER_RS485_ENABLED) {
/* Fire THR interrupts when FIFO is below trigger level */
up->scr &= ~OMAP_UART_SCR_TX_EMPTY;
serial_out(up, UART_OMAP_SCR, up->scr);
/* if rts not already enabled */
res = (port->rs485.flags & SER_RS485_RTS_ON_SEND) ? 1 : 0;
if (gpio_get_value(up->rts_gpio) != res) {
gpio_set_value(up->rts_gpio, res);
if (port->rs485.delay_rts_before_send > 0)
mdelay(port->rs485.delay_rts_before_send);
}
}
if ((port->rs485.flags & SER_RS485_ENABLED) &&
!(port->rs485.flags & SER_RS485_RX_DURING_TX))
serial_omap_stop_rx(port);
serial_omap_enable_ier_thri(up);
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
}
static void serial_omap_shutdown(struct uart_port *port)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
unsigned long flags = 0;
u8 lcr, efr;
dev_dbg(up->port.dev, "serial_omap_shutdown+%d\n", up->pdev->id);
/*
* Disable interrupts from this port
*/
up->ier = 0;
serial_out(up, UART_IER, 0);
/* If we're using auto-rts then disable it. */
spin_lock_irqsave(&up->port.lock, flags);
lcr = serial_in(up, UART_LCR);
serial_out(up, UART_LCR, 0xbf);
efr = serial_in(up, UART_EFR);
serial_out(up, UART_LCR, lcr);
if (efr & UART_EFR_RTS) {
serial_omap_set_autorts(up, 0);
up->restore_autorts = 1;
}
up->port.mctrl &= ~TIOCM_OUT2;
serial_omap_set_mctrl(&up->port, (up->port.mctrl & ~TIOCM_RTS));
spin_unlock_irqrestore(&up->port.lock, flags);
/*
* Disable break condition and FIFOs
*/
serial_out(up, UART_LCR, serial_in(up, UART_LCR) & ~UART_LCR_SBC);
serial_omap_clear_fifos(up);
/*
* Read data port to reset things, and then free the irq
*/
if (serial_in(up, UART_LSR) & UART_LSR_DR)
(void) serial_in(up, UART_RX);
if (up->use_dma) {
int tmp;
dma_free_coherent(up->port.dev,
UART_XMIT_SIZE, up->port.state->xmit.buf,
up->uart_dma.tx_buf_dma_phys);
up->port.state->xmit.buf = NULL;
serial_omap_stop_rx(port);
dma_free_coherent(up->port.dev,
up->uart_dma.rx_buf_size, up->uart_dma.rx_buf,
up->uart_dma.rx_buf_dma_phys);
up->uart_dma.rx_buf = NULL;
tmp = serial_in(up, UART_OMAP_SYSC) & OMAP_UART_SYSC_RESET;
serial_out(up, UART_OMAP_SYSC, tmp); /* force-idle */
}
free_irq(up->port.irq, up);
}
static void serial_omap_shutdown(struct uart_port *port)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
unsigned long flags = 0;
dev_dbg(up->port.dev, "serial_omap_shutdown+%d\n", up->pdev->id);
/*
* Disable interrupts from this port
*/
up->ier = 0;
serial_out(up, UART_IER, 0);
spin_lock_irqsave(&up->port.lock, flags);
up->port.mctrl &= ~TIOCM_OUT2;
serial_omap_set_mctrl(&up->port, up->port.mctrl);
spin_unlock_irqrestore(&up->port.lock, flags);
/*
* Disable break condition and FIFOs
*/
serial_out(up, UART_LCR, serial_in(up, UART_LCR) & ~UART_LCR_SBC);
serial_omap_clear_fifos(up);
/*
* Read data port to reset things, and then free the irq
*/
if (serial_in(up, UART_LSR) & UART_LSR_DR)
(void) serial_in(up, UART_RX);
if (up->use_dma) {
int tmp;
dma_free_coherent(up->port.dev,
UART_XMIT_SIZE, up->port.state->xmit.buf,
up->uart_dma.tx_buf_dma_phys);
up->port.state->xmit.buf = NULL;
serial_omap_stop_rx(port);
dma_free_coherent(up->port.dev,
up->uart_dma.rx_buf_size, up->uart_dma.rx_buf,
up->uart_dma.rx_buf_dma_phys);
up->uart_dma.rx_buf = NULL;
tmp = serial_in(up, UART_OMAP_SYSC) & OMAP_UART_SYSC_RESET;
serial_out(up, UART_OMAP_SYSC, tmp); /* force-idle */
}
free_irq(up->port.irq, up);
#if defined(CONFIG_KEYBOARD_P1)
if((up->port.line == 2)&&(g_keyboard))
{
send_keyevent(0);
}
#endif
/* Set this to zero, would be initialsed
* to the corrcet value at set_stermios.
*/
up->baud_rate = 0;
}
static void serial_omap_shutdown(struct uart_port *port)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
unsigned long flags;
DPRINTK("serial_omap_shutdown+%d\n", up->pdev->id);
/*
* Disable interrupts from this port
*/
up->ier = 0;
serial_out(up, UART_IER, 0);
spin_lock_irqsave(&up->port.lock, flags);
if (up->port.flags & UPF_FOURPORT) {
/* reset interrupts on the AST Fourport board */
inb((up->port.iobase & 0xfe0) | 0x1f);
up->port.mctrl |= TIOCM_OUT1;
} else
up->port.mctrl &= ~TIOCM_OUT2;
serial_omap_set_mctrl(&up->port, up->port.mctrl);
spin_unlock_irqrestore(&up->port.lock, flags);
/*
* Disable break condition and FIFOs
*/
serial_out(up, UART_LCR, serial_in(up, UART_LCR) & ~UART_LCR_SBC);
serial_omap_clear_fifos(up);
/*
* Read data port to reset things, and then free the irq
*/
(void) serial_in(up, UART_RX);
if (up->use_dma) {
int tmp;
if (up->is_buf_dma_alloced) {
dma_free_coherent(up->port.dev,
UART_XMIT_SIZE,
up->port.info->xmit.buf,
up->uart_dma.tx_buf_dma_phys);
up->port.info->xmit.buf = NULL;
up->is_buf_dma_alloced = 0;
}
/*TBD: Check if this is really needed here*/
serial_omap_stop_rx(port);
dma_free_coherent(up->port.dev,
up->uart_dma.rx_buf_size,
up->uart_dma.rx_buf,
up->uart_dma.rx_buf_dma_phys);
up->uart_dma.rx_buf = NULL;
tmp = serial_in(up, UART_OMAP_SYSC) & 0x7;
serial_out(up, UART_OMAP_SYSC, tmp); /* force-idle */
}
free_irq(up->port.irq, up);
}
static void serial_omap_shutdown(struct uart_port *port)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
unsigned long flags = 0;
dev_dbg(up->port.dev, "serial_omap_shutdown+%d\n", up->pdev->id);
serial_omap_port_enable(up);
/*
* Disable interrupts & wakeup events from this port
*/
up->ier = 0;
up->wer_restore = 0;
serial_out(up, UART_OMAP_WER, 0);
serial_out(up, UART_IER, 0);
spin_lock_irqsave(&up->port.lock, flags);
up->port.mctrl &= ~TIOCM_OUT2;
serial_omap_set_mctrl(&up->port, up->port.mctrl);
spin_unlock_irqrestore(&up->port.lock, flags);
/*
* Disable break condition and FIFOs
*/
serial_out(up, UART_LCR, serial_in(up, UART_LCR) & ~UART_LCR_SBC);
serial_omap_clear_fifos(up);
/*
* Read data port to reset things, and then free the irq
*/
if (serial_in(up, UART_LSR) & UART_LSR_DR)
(void) serial_in(up, UART_RX);
if (up->use_dma) {
dma_free_coherent(up->port.dev,
UART_XMIT_SIZE, up->port.state->xmit.buf,
up->uart_dma.tx_buf_dma_phys);
up->port.state->xmit.buf = NULL;
serial_omap_stop_rx(port);
dma_free_coherent(up->port.dev,
up->uart_dma.rx_buf_size, up->uart_dma.rx_buf,
up->uart_dma.rx_buf_dma_phys);
up->uart_dma.rx_buf = NULL;
}
serial_omap_port_disable(up);
free_irq(up->port.irq, up);
}
static void serial_omap_shutdown(struct uart_port *port)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
unsigned long flags = 0;
dev_dbg(up->port.dev, "serial_omap_shutdown+%d\n", up->port.line);
pm_runtime_get_sync(&up->pdev->dev);
up->ier = 0;
serial_out(up, UART_IER, 0);
spin_lock_irqsave(&up->port.lock, flags);
up->port.mctrl &= ~TIOCM_OUT2;
serial_omap_set_mctrl(&up->port, up->port.mctrl);
spin_unlock_irqrestore(&up->port.lock, flags);
serial_out(up, UART_LCR, serial_in(up, UART_LCR) & ~UART_LCR_SBC);
serial_omap_clear_fifos(up);
if (serial_in(up, UART_LSR) & UART_LSR_DR)
(void) serial_in(up, UART_RX);
if (up->use_dma) {
dma_free_coherent(up->port.dev,
UART_XMIT_SIZE, up->port.state->xmit.buf,
up->uart_dma.tx_buf_dma_phys);
up->port.state->xmit.buf = NULL;
serial_omap_stop_rx(port);
dma_free_coherent(up->port.dev,
up->uart_dma.rx_buf_size, up->uart_dma.rx_buf,
up->uart_dma.rx_buf_dma_phys);
up->uart_dma.rx_buf = NULL;
}
pm_runtime_put(&up->pdev->dev);
free_irq(up->port.irq, up);
}
static void serial_omap_shutdown(struct uart_port *port)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
unsigned long flags;
u8 lcr, efr;
DPRINTK("serial_omap_shutdown+%d\n", up->pdev->id);
/*
* If we're using auto-rts then disable it.
*/
lcr = serial_in(up, UART_LCR);
serial_out(up, UART_LCR, 0xbf);
efr = serial_in(up, UART_EFR);
serial_out(up, UART_LCR, lcr);
if (efr & UART_EFR_RTS) {
serial_omap_set_autorts(up, 0);
up->restore_autorts = 1;
}
/*
* Disable interrupts from this port
*/
up->ier = 0;
serial_out(up, UART_IER, 0);
spin_lock_irqsave(&up->port.lock, flags);
if (up->port.flags & UPF_FOURPORT) {
/* reset interrupts on the AST Fourport board */
inb((up->port.iobase & 0xfe0) | 0x1f);
up->port.mctrl |= TIOCM_OUT1;
} else
up->port.mctrl &= ~TIOCM_OUT2;
serial_omap_set_mctrl(&up->port, (up->port.mctrl & ~TIOCM_RTS));
spin_unlock_irqrestore(&up->port.lock, flags);
if (up->pdev->id == gps_port) {
serial_out(up, UART_LCR, UART_LCR_DLAB);
serial_out(up, UART_DLL, 0);
serial_out(up, UART_DLM, 0);
serial_out(up, UART_LCR, 0);
serial_out(up, UART_OMAP_MDR1, OMAP_MDR1_DISABLE);
}
/*
* Disable break condition and FIFOs
*/
serial_out(up, UART_LCR, serial_in(up, UART_LCR) & ~UART_LCR_SBC);
serial_omap_clear_fifos(up);
/*
* Read data port to reset things, and then free the irq
*/
if (serial_in(up, UART_LSR) & UART_LSR_DR)
(void) serial_in(up, UART_RX);
if (up->use_dma) {
int tmp;
if (up->is_buf_dma_alloced) {
dma_free_coherent(up->port.dev,
UART_XMIT_SIZE,
up->port.state->xmit.buf,
up->uart_dma.tx_buf_dma_phys);
up->port.state->xmit.buf = NULL;
up->is_buf_dma_alloced = 0;
}
/*TBD: Check if this is really needed here*/
serial_omap_stop_rx(port);
dma_free_coherent(up->port.dev,
up->uart_dma.rx_buf_size,
up->uart_dma.rx_buf, up->uart_dma.rx_buf_dma_phys);
up->uart_dma.rx_buf = NULL;
tmp = serial_in(up, UART_OMAP_SYSC) & 0x7;
serial_out(up, UART_OMAP_SYSC, tmp); /* force-idle */
}
free_irq(up->port.irq, up);
if (cancel_work_sync(&up->tty_work))
tty_flip_buffer_work(&up->tty_work);
}