X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fserial.h;h=b9ef6d91c9c54714e595392861f2432f7698f1cb;hb=faab193ea2a8992b18026318f36cc7139b4ca1b5;hp=14f863ed20ec73f67ed2df791ad2ad4b904b689c;hpb=953cfd2878216daf80bda4c0d4a829e2d76b7cbe;p=oweals%2Fu-boot.git diff --git a/include/serial.h b/include/serial.h index 14f863ed20..b9ef6d91c9 100644 --- a/include/serial.h +++ b/include/serial.h @@ -26,13 +26,9 @@ extern struct serial_device serial_smc_device; extern struct serial_device serial_scc_device; extern struct serial_device *default_serial_console(void); -#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ - defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ - defined(CONFIG_405EX) || defined(CONFIG_440) || \ - defined(CONFIG_MB86R0x) || defined(CONFIG_MPC5xxx) || \ - defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || \ - defined(CONFIG_MPC86xx) || defined(CONFIG_SYS_SC520) || \ - defined(CONFIG_TEGRA20) || defined(CONFIG_SYS_COREBOOT) || \ +#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || \ + defined(CONFIG_MPC86xx) || \ + defined(CONFIG_TEGRA) || defined(CONFIG_SYS_COREBOOT) || \ defined(CONFIG_MICROBLAZE) extern struct serial_device serial0_device; extern struct serial_device serial1_device; @@ -40,6 +36,10 @@ extern struct serial_device serial1_device; extern struct serial_device eserial1_device; extern struct serial_device eserial2_device; +extern struct serial_device eserial3_device; +extern struct serial_device eserial4_device; +extern struct serial_device eserial5_device; +extern struct serial_device eserial6_device; extern void serial_register(struct serial_device *); extern void serial_initialize(void); @@ -65,11 +65,131 @@ extern int usbtty_tstc(void); #endif /* CONFIG_USB_TTY */ -#if defined(CONFIG_MPC512X) -extern struct stdio_dev *open_port(int num, int baudrate); -extern int close_port(int num); -extern int write_port(struct stdio_dev *port, char *buf); -extern int read_port(struct stdio_dev *port, char *buf, int size); +struct udevice; + +enum serial_par { + SERIAL_PAR_NONE, + SERIAL_PAR_ODD, + SERIAL_PAR_EVEN +}; + +/** + * 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); + /** + * 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 + /** + * setparity() - Set up the parity + * + * Set up a new parity for this device. + * + * @dev: Device pointer + * @parity: parity to use + * @return 0 if OK, -ve on error + */ + int (*setparity)(struct udevice *dev, enum serial_par parity); +}; + +/** + * struct serial_dev_priv - information about a device used by the uclass + * + * @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 + */ +struct serial_dev_priv { + struct stdio_dev *sdev; + + char *buf; + int rd_ptr; + int wr_ptr; +}; + +/* Access the serial operations for a device */ +#define serial_get_ops(dev) ((struct dm_serial_ops *)(dev)->driver->ops) + +void atmel_serial_initialize(void); +void au1x00_serial_initialize(void); +void mcf_serial_initialize(void); +void mpc85xx_serial_initialize(void); +void mpc8xx_serial_initialize(void); +void mxc_serial_initialize(void); +void ns16550_serial_initialize(void); +void pl01x_serial_initialize(void); +void pxa_serial_initialize(void); +void sh_serial_initialize(void); #endif