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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 amirix_serial_initialize(void); | |
168 | void arc_serial_initialize(void); | |
169 | void arm_dcc_initialize(void); | |
170 | void asc_serial_initialize(void); | |
171 | void atmel_serial_initialize(void); | |
172 | void au1x00_serial_initialize(void); | |
173 | void bfin_jtag_initialize(void); | |
174 | void bfin_serial_initialize(void); | |
175 | void bmw_serial_initialize(void); | |
176 | void clps7111_serial_initialize(void); | |
177 | void cogent_serial_initialize(void); | |
178 | void cpci750_serial_initialize(void); | |
179 | void evb64260_serial_initialize(void); | |
180 | void imx_serial_initialize(void); | |
181 | void iop480_serial_initialize(void); | |
182 | void jz_serial_initialize(void); | |
183 | void leon2_serial_initialize(void); | |
184 | void leon3_serial_initialize(void); | |
185 | void lh7a40x_serial_initialize(void); | |
186 | void lpc32xx_serial_initialize(void); | |
187 | void marvell_serial_initialize(void); | |
188 | void max3100_serial_initialize(void); | |
189 | void mcf_serial_initialize(void); | |
190 | void ml2_serial_initialize(void); | |
191 | void mpc512x_serial_initialize(void); | |
192 | void mpc5xx_serial_initialize(void); | |
193 | void mpc8260_scc_serial_initialize(void); | |
194 | void mpc8260_smc_serial_initialize(void); | |
195 | void mpc85xx_serial_initialize(void); | |
196 | void mpc8xx_serial_initialize(void); | |
197 | void mxc_serial_initialize(void); | |
198 | void mxs_auart_initialize(void); | |
199 | void ns16550_serial_initialize(void); | |
200 | void oc_serial_initialize(void); | |
201 | void p3mx_serial_initialize(void); | |
202 | void pl01x_serial_initialize(void); | |
203 | void pxa_serial_initialize(void); | |
204 | void s3c24xx_serial_initialize(void); | |
205 | void s5p_serial_initialize(void); | |
206 | void sa1100_serial_initialize(void); | |
207 | void sandbox_serial_initialize(void); | |
208 | void sconsole_serial_initialize(void); | |
209 | void sh_serial_initialize(void); | |
210 | void uartlite_serial_initialize(void); | |
211 | void zynq_serial_initialize(void); | |
212 | ||
213 | #endif |