This source file includes following definitions.
- up_to_u8250p
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7 #ifndef _LINUX_SERIAL_8250_H
8 #define _LINUX_SERIAL_8250_H
9
10 #include <linux/serial_core.h>
11 #include <linux/serial_reg.h>
12 #include <linux/platform_device.h>
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16
17 struct plat_serial8250_port {
18 unsigned long iobase;
19 void __iomem *membase;
20 resource_size_t mapbase;
21 unsigned int irq;
22 unsigned long irqflags;
23 unsigned int uartclk;
24 void *private_data;
25 unsigned char regshift;
26 unsigned char iotype;
27 unsigned char hub6;
28 upf_t flags;
29 unsigned int type;
30 unsigned int (*serial_in)(struct uart_port *, int);
31 void (*serial_out)(struct uart_port *, int, int);
32 void (*set_termios)(struct uart_port *,
33 struct ktermios *new,
34 struct ktermios *old);
35 void (*set_ldisc)(struct uart_port *,
36 struct ktermios *);
37 unsigned int (*get_mctrl)(struct uart_port *);
38 int (*handle_irq)(struct uart_port *);
39 void (*pm)(struct uart_port *, unsigned int state,
40 unsigned old);
41 void (*handle_break)(struct uart_port *);
42 };
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46
47
48 enum {
49 PLAT8250_DEV_LEGACY = -1,
50 PLAT8250_DEV_PLATFORM,
51 PLAT8250_DEV_PLATFORM1,
52 PLAT8250_DEV_PLATFORM2,
53 PLAT8250_DEV_FOURPORT,
54 PLAT8250_DEV_ACCENT,
55 PLAT8250_DEV_BOCA,
56 PLAT8250_DEV_EXAR_ST16C554,
57 PLAT8250_DEV_HUB6,
58 PLAT8250_DEV_AU1X00,
59 PLAT8250_DEV_SM501,
60 };
61
62 struct uart_8250_dma;
63 struct uart_8250_port;
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73 struct uart_8250_ops {
74 int (*setup_irq)(struct uart_8250_port *);
75 void (*release_irq)(struct uart_8250_port *);
76 };
77
78 struct uart_8250_em485 {
79 struct hrtimer start_tx_timer;
80 struct hrtimer stop_tx_timer;
81 struct hrtimer *active_timer;
82 struct uart_8250_port *port;
83 };
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92 struct uart_8250_port {
93 struct uart_port port;
94 struct timer_list timer;
95 struct list_head list;
96 u32 capabilities;
97 unsigned short bugs;
98 bool fifo_bug;
99 unsigned int tx_loadsz;
100 unsigned char acr;
101 unsigned char fcr;
102 unsigned char ier;
103 unsigned char lcr;
104 unsigned char mcr;
105 unsigned char mcr_mask;
106 unsigned char mcr_force;
107 unsigned char cur_iotype;
108 unsigned int rpm_tx_active;
109 unsigned char canary;
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112 unsigned char probe;
113 struct mctrl_gpios *gpios;
114 #define UART_PROBE_RSA (1 << 0)
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121 #define LSR_SAVE_FLAGS UART_LSR_BRK_ERROR_BITS
122 unsigned char lsr_saved_flags;
123 #define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
124 unsigned char msr_saved_flags;
125
126 struct uart_8250_dma *dma;
127 const struct uart_8250_ops *ops;
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129
130 int (*dl_read)(struct uart_8250_port *);
131 void (*dl_write)(struct uart_8250_port *, int);
132
133 struct uart_8250_em485 *em485;
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135
136 struct delayed_work overrun_backoff;
137 u32 overrun_backoff_time_ms;
138 };
139
140 static inline struct uart_8250_port *up_to_u8250p(struct uart_port *up)
141 {
142 return container_of(up, struct uart_8250_port, port);
143 }
144
145 int serial8250_register_8250_port(struct uart_8250_port *);
146 void serial8250_unregister_port(int line);
147 void serial8250_suspend_port(int line);
148 void serial8250_resume_port(int line);
149
150 extern int early_serial_setup(struct uart_port *port);
151
152 extern int early_serial8250_setup(struct earlycon_device *device,
153 const char *options);
154 extern void serial8250_do_set_termios(struct uart_port *port,
155 struct ktermios *termios, struct ktermios *old);
156 extern void serial8250_do_set_ldisc(struct uart_port *port,
157 struct ktermios *termios);
158 extern unsigned int serial8250_do_get_mctrl(struct uart_port *port);
159 extern int serial8250_do_startup(struct uart_port *port);
160 extern void serial8250_do_shutdown(struct uart_port *port);
161 extern void serial8250_do_pm(struct uart_port *port, unsigned int state,
162 unsigned int oldstate);
163 extern void serial8250_do_set_mctrl(struct uart_port *port, unsigned int mctrl);
164 extern void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud,
165 unsigned int quot,
166 unsigned int quot_frac);
167 extern int fsl8250_handle_irq(struct uart_port *port);
168 int serial8250_handle_irq(struct uart_port *port, unsigned int iir);
169 unsigned char serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr);
170 void serial8250_read_char(struct uart_8250_port *up, unsigned char lsr);
171 void serial8250_tx_chars(struct uart_8250_port *up);
172 unsigned int serial8250_modem_status(struct uart_8250_port *up);
173 void serial8250_init_port(struct uart_8250_port *up);
174 void serial8250_set_defaults(struct uart_8250_port *up);
175 void serial8250_console_write(struct uart_8250_port *up, const char *s,
176 unsigned int count);
177 int serial8250_console_setup(struct uart_port *port, char *options, bool probe);
178
179 extern void serial8250_set_isa_configurator(void (*v)
180 (int port, struct uart_port *up,
181 u32 *capabilities));
182
183 #endif