1 #ifndef __SERIAL_H__ 2 #define __SERIAL_H__ 3 4 #include <post.h> 5 6 struct serial_device { 7 /* enough bytes to match alignment of following func pointer */ 8 char name[16]; 9 10 int (*start)(void); 11 int (*stop)(void); 12 void (*setbrg)(void); 13 int (*getc)(void); 14 int (*tstc)(void); 15 void (*putc)(const char c); 16 void (*puts)(const char *s); 17 #if CONFIG_POST & CONFIG_SYS_POST_UART 18 void (*loop)(int); 19 #endif 20 struct serial_device *next; 21 }; 22 23 void default_serial_puts(const char *s); 24 25 extern struct serial_device serial_smc_device; 26 extern struct serial_device serial_scc_device; 27 extern struct serial_device *default_serial_console(void); 28 29 #if defined(CONFIG_405GP) || \ 30 defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ 31 defined(CONFIG_405EX) || defined(CONFIG_440) || \ 32 defined(CONFIG_MPC5xxx) || \ 33 defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || \ 34 defined(CONFIG_MPC86xx) || defined(CONFIG_SYS_SC520) || \ 35 defined(CONFIG_TEGRA) || defined(CONFIG_SYS_COREBOOT) || \ 36 defined(CONFIG_MICROBLAZE) 37 extern struct serial_device serial0_device; 38 extern struct serial_device serial1_device; 39 #endif 40 41 extern struct serial_device eserial1_device; 42 extern struct serial_device eserial2_device; 43 44 extern void serial_register(struct serial_device *); 45 extern void serial_initialize(void); 46 extern void serial_stdio_init(void); 47 extern int serial_assign(const char *name); 48 extern void serial_reinit_all(void); 49 50 /* For usbtty */ 51 #ifdef CONFIG_USB_TTY 52 53 extern int usbtty_getc(void); 54 extern void usbtty_putc(const char c); 55 extern void usbtty_puts(const char *str); 56 extern int usbtty_tstc(void); 57 58 #else 59 60 /* stubs */ 61 #define usbtty_getc() 0 62 #define usbtty_putc(a) 63 #define usbtty_puts(a) 64 #define usbtty_tstc() 0 65 66 #endif /* CONFIG_USB_TTY */ 67 68 #if defined(CONFIG_MPC512X) 69 extern struct stdio_dev *open_port(int num, int baudrate); 70 extern int close_port(int num); 71 extern int write_port(struct stdio_dev *port, char *buf); 72 extern int read_port(struct stdio_dev *port, char *buf, int size); 73 #endif 74 75 struct udevice; 76 77 /** 78 * struct struct dm_serial_ops - Driver model serial operations 79 * 80 * The uclass interface is implemented by all serial devices which use 81 * driver model. 82 */ 83 struct dm_serial_ops { 84 /** 85 * setbrg() - Set up the baud rate generator 86 * 87 * Adjust baud rate divisors to set up a new baud rate for this 88 * device. Not all devices will support all rates. If the rate 89 * cannot be supported, the driver is free to select the nearest 90 * available rate. or return -EINVAL if this is not possible. 91 * 92 * @dev: Device pointer 93 * @baudrate: New baud rate to use 94 * @return 0 if OK, -ve on error 95 */ 96 int (*setbrg)(struct udevice *dev, int baudrate); 97 /** 98 * getc() - Read a character and return it 99 * 100 * If no character is available, this should return -EAGAIN without 101 * waiting. 102 * 103 * @dev: Device pointer 104 * @return character (0..255), -ve on error 105 */ 106 int (*getc)(struct udevice *dev); 107 /** 108 * putc() - Write a character 109 * 110 * @dev: Device pointer 111 * @ch: character to write 112 * @return 0 if OK, -ve on error 113 */ 114 int (*putc)(struct udevice *dev, const char ch); 115 /** 116 * pending() - Check if input/output characters are waiting 117 * 118 * This can be used to return an indication of the number of waiting 119 * characters if the driver knows this (e.g. by looking at the FIFO 120 * level). It is acceptable to return 1 if an indeterminant number 121 * of characters is waiting. 122 * 123 * This method is optional. 124 * 125 * @dev: Device pointer 126 * @input: true to check input characters, false for output 127 * @return number of waiting characters, 0 for none, -ve on error 128 */ 129 int (*pending)(struct udevice *dev, bool input); 130 /** 131 * clear() - Clear the serial FIFOs/holding registers 132 * 133 * This method is optional. 134 * 135 * This quickly clears any input/output characters from the UART. 136 * If this is not possible, but characters still exist, then it 137 * is acceptable to return -EAGAIN (try again) or -EINVAL (not 138 * supported). 139 * 140 * @dev: Device pointer 141 * @return 0 if OK, -ve on error 142 */ 143 int (*clear)(struct udevice *dev); 144 #if CONFIG_POST & CONFIG_SYS_POST_UART 145 /** 146 * loop() - Control serial device loopback mode 147 * 148 * @dev: Device pointer 149 * @on: 1 to turn loopback on, 0 to turn if off 150 */ 151 int (*loop)(struct udevice *dev, int on); 152 #endif 153 }; 154 155 /** 156 * struct serial_dev_priv - information about a device used by the uclass 157 * 158 * @sdev: stdio device attached to this uart 159 */ 160 struct serial_dev_priv { 161 struct stdio_dev *sdev; 162 }; 163 164 /* Access the serial operations for a device */ 165 #define serial_get_ops(dev) ((struct dm_serial_ops *)(dev)->driver->ops) 166 167 void altera_jtag_serial_initialize(void); 168 void altera_serial_initialize(void); 169 void amirix_serial_initialize(void); 170 void arc_serial_initialize(void); 171 void arm_dcc_initialize(void); 172 void asc_serial_initialize(void); 173 void atmel_serial_initialize(void); 174 void au1x00_serial_initialize(void); 175 void bfin_jtag_initialize(void); 176 void bfin_serial_initialize(void); 177 void bmw_serial_initialize(void); 178 void clps7111_serial_initialize(void); 179 void cogent_serial_initialize(void); 180 void cpci750_serial_initialize(void); 181 void evb64260_serial_initialize(void); 182 void imx_serial_initialize(void); 183 void iop480_serial_initialize(void); 184 void jz_serial_initialize(void); 185 void leon2_serial_initialize(void); 186 void leon3_serial_initialize(void); 187 void lh7a40x_serial_initialize(void); 188 void lpc32xx_serial_initialize(void); 189 void marvell_serial_initialize(void); 190 void max3100_serial_initialize(void); 191 void mcf_serial_initialize(void); 192 void ml2_serial_initialize(void); 193 void mpc512x_serial_initialize(void); 194 void mpc5xx_serial_initialize(void); 195 void mpc8260_scc_serial_initialize(void); 196 void mpc8260_smc_serial_initialize(void); 197 void mpc85xx_serial_initialize(void); 198 void mpc8xx_serial_initialize(void); 199 void mxc_serial_initialize(void); 200 void mxs_auart_initialize(void); 201 void ns16550_serial_initialize(void); 202 void oc_serial_initialize(void); 203 void p3mx_serial_initialize(void); 204 void pl01x_serial_initialize(void); 205 void pxa_serial_initialize(void); 206 void s3c24xx_serial_initialize(void); 207 void s5p_serial_initialize(void); 208 void sa1100_serial_initialize(void); 209 void sandbox_serial_initialize(void); 210 void sconsole_serial_initialize(void); 211 void sh_serial_initialize(void); 212 void uartlite_serial_initialize(void); 213 void zynq_serial_initialize(void); 214 215 #endif 216