diff options
Diffstat (limited to 'drivers/serial/stmp-app.h')
| -rw-r--r-- | drivers/serial/stmp-app.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/serial/stmp-app.h b/drivers/serial/stmp-app.h new file mode 100644 index 000000000000..938c89bc5214 --- /dev/null +++ b/drivers/serial/stmp-app.h @@ -0,0 +1,82 @@ +/* + * Freescale STMP37XX/STMP378X Application UART driver + * + * Author: dmitry pervushin <dimka@embeddedalley.com> + * + * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ +#ifndef __STMP_APPUART_H +#define __STMP_APPUART_H + +#define RX_BUFFER_SIZE 4 +#define TX_BUFFER_SIZE 0xFFF0 + +#include <mach/dma.h> + +/* #define RX_CHAIN 2 */ + +struct stmp_appuart_port { + int keep_irq; + int irq[3]; + void __iomem *mem; + u32 memsize; + int dma_rx, dma_tx; + struct clk *clk; + struct device *dev; + struct uart_port port; + unsigned tx_buffer_index; + struct stmp3xxx_dma_descriptor tx_desc; +#ifndef RX_CHAIN + struct stmp3xxx_dma_descriptor rx_desc; +#else + struct stmp3xxx_dma_descriptor rxd[RX_CHAIN]; + struct stmp37xx_circ_dma_chain rx_chain; +#endif + + u32 ctrl; + u8 running; + spinlock_t lock; /* protects irq handler */ +}; + +#ifdef CONFIG_CPU_FREQ +static int stmp_appuart_updateclk(struct device *dev, void *clkdata); +static int stmp_appuart_notifier(struct notifier_block *self, + unsigned long phase, void *p); +#endif /* CONFIG_CPU_FREQ */ +static int __init stmp_appuart_probe(struct platform_device *device); +static int stmp_appuart_remove(struct platform_device *device); +static int stmp_appuart_suspend(struct platform_device *device, + pm_message_t state); +static int stmp_appuart_resume(struct platform_device *device); +static int __init stmp_appuart_init(void); +static void __exit stmp_appuart_exit(void); +static int stmp_appuart_request_port(struct uart_port *u); +static void stmp_appuart_release_port(struct uart_port *u); +static int stmp_appuart_verify_port(struct uart_port *u, + struct serial_struct *); +static void stmp_appuart_config_port(struct uart_port *u, int flags); +static const char *stmp_appuart_type(struct uart_port *u); +static void stmp_appuart_settermios(struct uart_port *u, + struct ktermios *nw, struct ktermios *old); +static void stmp_appuart_shutdown(struct uart_port *u); +static int stmp_appuart_startup(struct uart_port *u); +static u32 stmp_appuart_get_mctrl(struct uart_port *u); +static void stmp_appuart_set_mctrl(struct uart_port *u, unsigned mctrl); +static void stmp_appuart_enable_ms(struct uart_port *port); +static void stmp_appuart_break_ctl(struct uart_port *port, int ctl); +static unsigned int stmp_appuart_tx_empty(struct uart_port *u); +static void stmp_appuart_stop_rx(struct uart_port *u); +static void stmp_appuart_start_tx(struct uart_port *u); +static void stmp_appuart_stop_tx(struct uart_port *u); +static int stmp_appuart_copy_tx(struct uart_port *u, u8 *target, int size); +#endif |