X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fserial.h;h=c1368c68b6473bee38e19d766d08324185b3fa47;hb=c986aa624b6a0a627f029b44945b60979e25d109;hp=d87f01082a056f07a05a3161785fc4231318b157;hpb=6aee2ab68c362ace5a59f89a63abed82e0bf19e5;p=oweals%2Fu-boot.git diff --git a/include/serial.h b/include/serial.h index d87f01082a..c1368c68b6 100644 --- a/include/serial.h +++ b/include/serial.h @@ -67,6 +67,90 @@ extern int usbtty_tstc(void); struct udevice; +enum serial_par { + SERIAL_PAR_NONE, + SERIAL_PAR_ODD, + SERIAL_PAR_EVEN +}; + +#define SERIAL_PAR_SHIFT 0 +#define SERIAL_PAR_MASK (0x03 << SERIAL_PAR_SHIFT) +#define SERIAL_SET_PARITY(parity) \ + ((parity << SERIAL_PAR_SHIFT) & SERIAL_PAR_MASK) +#define SERIAL_GET_PARITY(config) \ + ((config & SERIAL_PAR_MASK) >> SERIAL_PAR_SHIFT) + +enum serial_bits { + SERIAL_5_BITS, + SERIAL_6_BITS, + SERIAL_7_BITS, + SERIAL_8_BITS +}; + +#define SERIAL_BITS_SHIFT 2 +#define SERIAL_BITS_MASK (0x3 << SERIAL_BITS_SHIFT) +#define SERIAL_SET_BITS(bits) \ + ((bits << SERIAL_BITS_SHIFT) & SERIAL_BITS_MASK) +#define SERIAL_GET_BITS(config) \ + ((config & SERIAL_BITS_MASK) >> SERIAL_BITS_SHIFT) + +enum serial_stop { + SERIAL_HALF_STOP, /* 0.5 stop bit */ + SERIAL_ONE_STOP, /* 1 stop bit */ + SERIAL_ONE_HALF_STOP, /* 1.5 stop bit */ + SERIAL_TWO_STOP /* 2 stop bit */ +}; + +#define SERIAL_STOP_SHIFT 4 +#define SERIAL_STOP_MASK (0x3 << SERIAL_STOP_SHIFT) +#define SERIAL_SET_STOP(stop) \ + ((stop << SERIAL_STOP_SHIFT) & SERIAL_STOP_MASK) +#define SERIAL_GET_STOP(config) \ + ((config & SERIAL_STOP_MASK) >> SERIAL_STOP_SHIFT) + +#define SERIAL_CONFIG(par, bits, stop) \ + (par << SERIAL_PAR_SHIFT | \ + bits << SERIAL_BITS_SHIFT | \ + stop << SERIAL_STOP_SHIFT) + +#define SERIAL_DEFAULT_CONFIG \ + (SERIAL_PAR_NONE << SERIAL_PAR_SHIFT | \ + SERIAL_8_BITS << SERIAL_BITS_SHIFT | \ + SERIAL_ONE_STOP << SERIAL_STOP_SHIFT) + +enum serial_chip_type { + SERIAL_CHIP_UNKNOWN = -1, + SERIAL_CHIP_16550_COMPATIBLE, +}; + +enum adr_space_type { + SERIAL_ADDRESS_SPACE_MEMORY = 0, + SERIAL_ADDRESS_SPACE_IO, +}; + +/** + * struct serial_device_info - structure to hold serial device info + * + * @type: type of the UART chip + * @addr_space: address space to access the registers + * @addr: physical address of the registers + * @reg_width: size (in bytes) of the IO accesses to the registers + * @reg_offset: offset to apply to the @addr from the start of the registers + * @reg_shift: quantity to shift the register offsets by + * @baudrate: baud rate + */ +struct serial_device_info { + enum serial_chip_type type; + enum adr_space_type addr_space; + ulong addr; + u8 reg_width; + u8 reg_offset; + u8 reg_shift; + unsigned int baudrate; +}; + +#define SERIAL_DEFAULT_ADDRESS 0xBADACCE5 + /** * struct struct dm_serial_ops - Driver model serial operations * @@ -143,6 +227,37 @@ struct dm_serial_ops { */ int (*loop)(struct udevice *dev, int on); #endif + + /** + * getconfig() - Get the uart configuration + * (parity, 5/6/7/8 bits word length, stop bits) + * + * Get a current config for this device. + * + * @dev: Device pointer + * @serial_config: Returns config information (see SERIAL_... above) + * @return 0 if OK, -ve on error + */ + int (*getconfig)(struct udevice *dev, uint *serial_config); + /** + * setconfig() - Set up the uart configuration + * (parity, 5/6/7/8 bits word length, stop bits) + * + * Set up a new config for this device. + * + * @dev: Device pointer + * @serial_config: number of bits, parity and number of stopbits to use + * @return 0 if OK, -ve on error + */ + int (*setconfig)(struct udevice *dev, uint serial_config); + /** + * getinfo() - Get serial device information + * + * @dev: Device pointer + * @info: struct serial_device_info to fill + * @return 0 if OK, -ve on error + */ + int (*getinfo)(struct udevice *dev, struct serial_device_info *info); }; /** @@ -165,46 +280,46 @@ struct serial_dev_priv { /* Access the serial operations for a device */ #define serial_get_ops(dev) ((struct dm_serial_ops *)(dev)->driver->ops) -void amirix_serial_initialize(void); -void arc_serial_initialize(void); -void arm_dcc_initialize(void); -void asc_serial_initialize(void); +/** + * serial_getconfig() - Get the uart configuration + * (parity, 5/6/7/8 bits word length, stop bits) + * + * Get a current config for this device. + * + * @dev: Device pointer + * @serial_config: Returns config information (see SERIAL_... above) + * @return 0 if OK, -ve on error + */ +int serial_getconfig(struct udevice *dev, uint *config); + +/** + * serial_setconfig() - Set up the uart configuration + * (parity, 5/6/7/8 bits word length, stop bits) + * + * Set up a new config for this device. + * + * @dev: Device pointer + * @serial_config: number of bits, parity and number of stopbits to use + * @return 0 if OK, -ve on error + */ +int serial_setconfig(struct udevice *dev, uint config); + +/** + * serial_getinfo() - Get serial device information + * + * @dev: Device pointer + * @info: struct serial_device_info to fill + * @return 0 if OK, -ve on error + */ +int serial_getinfo(struct udevice *dev, struct serial_device_info *info); + 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); -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); 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); #endif