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include/serial.h
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#ifndef __SERIAL_H__ #define __SERIAL_H__ |
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#include <post.h> |
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struct serial_device { |
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/* enough bytes to match alignment of following func pointer */ |
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char name[16]; |
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int (*start)(void); int (*stop)(void); |
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void (*setbrg)(void); int (*getc)(void); int (*tstc)(void); void (*putc)(const char c); void (*puts)(const char *s); |
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#if CONFIG_POST & CONFIG_SYS_POST_UART |
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void (*loop)(int); |
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#endif |
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struct serial_device *next; |
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}; |
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void default_serial_puts(const char *s); |
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extern struct serial_device serial_smc_device; extern struct serial_device serial_scc_device; |
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extern struct serial_device *default_serial_console(void); |
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#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || \ |
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defined(CONFIG_MPC86xx) || \ |
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defined(CONFIG_TEGRA) || defined(CONFIG_SYS_COREBOOT) || \ |
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defined(CONFIG_MICROBLAZE) |
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extern struct serial_device serial0_device; extern struct serial_device serial1_device; |
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#endif |
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extern struct serial_device eserial1_device; extern struct serial_device eserial2_device; |
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extern struct serial_device eserial3_device; extern struct serial_device eserial4_device; extern struct serial_device eserial5_device; extern struct serial_device eserial6_device; |
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extern void serial_register(struct serial_device *); |
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extern void serial_initialize(void); |
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extern void serial_stdio_init(void); |
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extern int serial_assign(const char *name); |
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extern void serial_reinit_all(void); |
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/* For usbtty */ |
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#ifdef CONFIG_USB_TTY |
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extern int usbtty_getc(void); extern void usbtty_putc(const char c); extern void usbtty_puts(const char *str); extern int usbtty_tstc(void); |
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#else /* stubs */ #define usbtty_getc() 0 #define usbtty_putc(a) #define usbtty_puts(a) #define usbtty_tstc() 0 #endif /* CONFIG_USB_TTY */ |
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struct udevice; /** * struct struct dm_serial_ops - Driver model serial operations * * The uclass interface is implemented by all serial devices which use * driver model. */ struct dm_serial_ops { /** * setbrg() - Set up the baud rate generator * * Adjust baud rate divisors to set up a new baud rate for this * device. Not all devices will support all rates. If the rate * cannot be supported, the driver is free to select the nearest * available rate. or return -EINVAL if this is not possible. * * @dev: Device pointer * @baudrate: New baud rate to use * @return 0 if OK, -ve on error */ int (*setbrg)(struct udevice *dev, int baudrate); /** * getc() - Read a character and return it * * If no character is available, this should return -EAGAIN without * waiting. * * @dev: Device pointer * @return character (0..255), -ve on error */ int (*getc)(struct udevice *dev); /** |
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* puts() - puts a string * * @dev: Device pointer * @str: string to write * @return 0 if OK, -ve on error */ int (*puts)(struct udevice *dev, const char *str); /** |
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* putc() - Write a character * * @dev: Device pointer * @ch: character to write * @return 0 if OK, -ve on error */ int (*putc)(struct udevice *dev, const char ch); /** * pending() - Check if input/output characters are waiting * * This can be used to return an indication of the number of waiting * characters if the driver knows this (e.g. by looking at the FIFO * level). It is acceptable to return 1 if an indeterminant number * of characters is waiting. * * This method is optional. * * @dev: Device pointer * @input: true to check input characters, false for output * @return number of waiting characters, 0 for none, -ve on error */ int (*pending)(struct udevice *dev, bool input); /** * clear() - Clear the serial FIFOs/holding registers * * This method is optional. * * This quickly clears any input/output characters from the UART. * If this is not possible, but characters still exist, then it * is acceptable to return -EAGAIN (try again) or -EINVAL (not * supported). * * @dev: Device pointer * @return 0 if OK, -ve on error */ int (*clear)(struct udevice *dev); #if CONFIG_POST & CONFIG_SYS_POST_UART /** * loop() - Control serial device loopback mode * * @dev: Device pointer * @on: 1 to turn loopback on, 0 to turn if off */ int (*loop)(struct udevice *dev, int on); #endif }; /** * struct serial_dev_priv - information about a device used by the uclass * |
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* @sdev: stdio device attached to this uart * * @buf: Pointer to the RX buffer * @rd_ptr: Read pointer in the RX buffer * @wr_ptr: Write pointer in the RX buffer |
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*/ struct serial_dev_priv { struct stdio_dev *sdev; |
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char *buf; int rd_ptr; int wr_ptr; |
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}; /* Access the serial operations for a device */ #define serial_get_ops(dev) ((struct dm_serial_ops *)(dev)->driver->ops) |
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void amirix_serial_initialize(void); void arc_serial_initialize(void); void arm_dcc_initialize(void); void asc_serial_initialize(void); void atmel_serial_initialize(void); void au1x00_serial_initialize(void); void bfin_jtag_initialize(void); void bfin_serial_initialize(void); void bmw_serial_initialize(void); void clps7111_serial_initialize(void); void cogent_serial_initialize(void); void cpci750_serial_initialize(void); void evb64260_serial_initialize(void); void imx_serial_initialize(void); void iop480_serial_initialize(void); void jz_serial_initialize(void); |
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void leon2_serial_initialize(void); void leon3_serial_initialize(void); void lh7a40x_serial_initialize(void); void lpc32xx_serial_initialize(void); void marvell_serial_initialize(void); void max3100_serial_initialize(void); void mcf_serial_initialize(void); void ml2_serial_initialize(void); |
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void mpc85xx_serial_initialize(void); void mpc8xx_serial_initialize(void); void mxc_serial_initialize(void); void mxs_auart_initialize(void); void ns16550_serial_initialize(void); void oc_serial_initialize(void); void p3mx_serial_initialize(void); void pl01x_serial_initialize(void); void pxa_serial_initialize(void); void s3c24xx_serial_initialize(void); void s5p_serial_initialize(void); void sa1100_serial_initialize(void); void sandbox_serial_initialize(void); void sconsole_serial_initialize(void); void sh_serial_initialize(void); void uartlite_serial_initialize(void); void zynq_serial_initialize(void); |
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#endif |