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 extern struct serial_device eserial3_device; 44 extern struct serial_device eserial4_device; 45 extern struct serial_device eserial5_device; 46 extern struct serial_device eserial6_device; 47 48 extern void serial_register(struct serial_device *); 49 extern void serial_initialize(void); 50 extern void serial_stdio_init(void); 51 extern int serial_assign(const char *name); 52 extern void serial_reinit_all(void); 53 54 /* For usbtty */ 55 #ifdef CONFIG_USB_TTY 56 57 extern int usbtty_getc(void); 58 extern void usbtty_putc(const char c); 59 extern void usbtty_puts(const char *str); 60 extern int usbtty_tstc(void); 61 62 #else 63 64 /* stubs */ 65 #define usbtty_getc() 0 66 #define usbtty_putc(a) 67 #define usbtty_puts(a) 68 #define usbtty_tstc() 0 69 70 #endif /* CONFIG_USB_TTY */ 71 72 #if defined(CONFIG_MPC512X) 73 extern struct stdio_dev *open_port(int num, int baudrate); 74 extern int close_port(int num); 75 extern int write_port(struct stdio_dev *port, char *buf); 76 extern int read_port(struct stdio_dev *port, char *buf, int size); 77 #endif 78 79 struct udevice; 80 81 /** 82 * struct struct dm_serial_ops - Driver model serial operations 83 * 84 * The uclass interface is implemented by all serial devices which use 85 * driver model. 86 */ 87 struct dm_serial_ops { 88 /** 89 * setbrg() - Set up the baud rate generator 90 * 91 * Adjust baud rate divisors to set up a new baud rate for this 92 * device. Not all devices will support all rates. If the rate 93 * cannot be supported, the driver is free to select the nearest 94 * available rate. or return -EINVAL if this is not possible. 95 * 96 * @dev: Device pointer 97 * @baudrate: New baud rate to use 98 * @return 0 if OK, -ve on error 99 */ 100 int (*setbrg)(struct udevice *dev, int baudrate); 101 /** 102 * getc() - Read a character and return it 103 * 104 * If no character is available, this should return -EAGAIN without 105 * waiting. 106 * 107 * @dev: Device pointer 108 * @return character (0..255), -ve on error 109 */ 110 int (*getc)(struct udevice *dev); 111 /** 112 * putc() - Write a character 113 * 114 * @dev: Device pointer 115 * @ch: character to write 116 * @return 0 if OK, -ve on error 117 */ 118 int (*putc)(struct udevice *dev, const char ch); 119 /** 120 * pending() - Check if input/output characters are waiting 121 * 122 * This can be used to return an indication of the number of waiting 123 * characters if the driver knows this (e.g. by looking at the FIFO 124 * level). It is acceptable to return 1 if an indeterminant number 125 * of characters is waiting. 126 * 127 * This method is optional. 128 * 129 * @dev: Device pointer 130 * @input: true to check input characters, false for output 131 * @return number of waiting characters, 0 for none, -ve on error 132 */ 133 int (*pending)(struct udevice *dev, bool input); 134 /** 135 * clear() - Clear the serial FIFOs/holding registers 136 * 137 * This method is optional. 138 * 139 * This quickly clears any input/output characters from the UART. 140 * If this is not possible, but characters still exist, then it 141 * is acceptable to return -EAGAIN (try again) or -EINVAL (not 142 * supported). 143 * 144 * @dev: Device pointer 145 * @return 0 if OK, -ve on error 146 */ 147 int (*clear)(struct udevice *dev); 148 #if CONFIG_POST & CONFIG_SYS_POST_UART 149 /** 150 * loop() - Control serial device loopback mode 151 * 152 * @dev: Device pointer 153 * @on: 1 to turn loopback on, 0 to turn if off 154 */ 155 int (*loop)(struct udevice *dev, int on); 156 #endif 157 }; 158 159 /** 160 * struct serial_dev_priv - information about a device used by the uclass 161 * 162 * @sdev: stdio device attached to this uart 163 */ 164 struct serial_dev_priv { 165 struct stdio_dev *sdev; 166 }; 167 168 /* Access the serial operations for a device */ 169 #define serial_get_ops(dev) ((struct dm_serial_ops *)(dev)->driver->ops) 170 171 void amirix_serial_initialize(void); 172 void arc_serial_initialize(void); 173 void arm_dcc_initialize(void); 174 void asc_serial_initialize(void); 175 void atmel_serial_initialize(void); 176 void au1x00_serial_initialize(void); 177 void bfin_jtag_initialize(void); 178 void bfin_serial_initialize(void); 179 void bmw_serial_initialize(void); 180 void clps7111_serial_initialize(void); 181 void cogent_serial_initialize(void); 182 void cpci750_serial_initialize(void); 183 void evb64260_serial_initialize(void); 184 void imx_serial_initialize(void); 185 void iop480_serial_initialize(void); 186 void jz_serial_initialize(void); 187 void leon2_serial_initialize(void); 188 void leon3_serial_initialize(void); 189 void lh7a40x_serial_initialize(void); 190 void lpc32xx_serial_initialize(void); 191 void marvell_serial_initialize(void); 192 void max3100_serial_initialize(void); 193 void mcf_serial_initialize(void); 194 void ml2_serial_initialize(void); 195 void mpc512x_serial_initialize(void); 196 void mpc5xx_serial_initialize(void); 197 void mpc8260_scc_serial_initialize(void); 198 void mpc8260_smc_serial_initialize(void); 199 void mpc85xx_serial_initialize(void); 200 void mpc8xx_serial_initialize(void); 201 void mxc_serial_initialize(void); 202 void mxs_auart_initialize(void); 203 void ns16550_serial_initialize(void); 204 void oc_serial_initialize(void); 205 void p3mx_serial_initialize(void); 206 void pl01x_serial_initialize(void); 207 void pxa_serial_initialize(void); 208 void s3c24xx_serial_initialize(void); 209 void s5p_serial_initialize(void); 210 void sa1100_serial_initialize(void); 211 void sandbox_serial_initialize(void); 212 void sconsole_serial_initialize(void); 213 void sh_serial_initialize(void); 214 void uartlite_serial_initialize(void); 215 void zynq_serial_initialize(void); 216 217 #endif 218