1 #ifndef __LINUX_PS2MULT_H
2 #define __LINUX_PS2MULT_H
4 #define kbd_request_region() ps2mult_init()
5 #define kbd_request_irq(handler) ps2mult_request_irq(handler)
7 #define kbd_read_input() ps2mult_read_input()
8 #define kbd_read_status() ps2mult_read_status()
9 #define kbd_write_output(val) ps2mult_write_output(val)
10 #define kbd_write_command(val) ps2mult_write_command(val)
12 #define aux_request_irq(hand, dev_id) 0
13 #define aux_free_irq(dev_id)
15 #define PS2MULT_KB_SELECTOR 0xA0
16 #define PS2MULT_MS_SELECTOR 0xA1
17 #define PS2MULT_ESCAPE 0x7D
18 #define PS2MULT_BSYNC 0x7E
19 #define PS2MULT_SESSION_START 0x55
20 #define PS2MULT_SESSION_END 0x56
22 #define PS2BUF_SIZE 512 /* power of 2, please */
24 /* PS/2 controller interface (include/asm/keyboard.h)
26 extern int ps2mult_init (void);
27 extern int ps2mult_request_irq(void (*handler)(void *));
28 extern u_char ps2mult_read_input(void);
29 extern u_char ps2mult_read_status(void);
30 extern void ps2mult_write_output(u_char val);
31 extern void ps2mult_write_command(u_char val);
33 extern void ps2mult_callback (int in_cnt);
35 /* Simple serial interface
37 extern int ps2ser_init(void);
38 extern void ps2ser_putc(int chr);
39 extern int ps2ser_getc(void);
40 extern int ps2ser_check(void);
43 /* Serial related stuff
51 #define UART_RX 0 /* In: Receive buffer (DLAB=0) */
52 #define UART_TX 0 /* Out: Transmit buffer (DLAB=0) */
53 #define UART_DLL 0 /* Out: Divisor Latch Low (DLAB=1) */
55 #define UART_DLM 1 /* Out: Divisor Latch High (DLAB=1) */
56 #define UART_IER 1 /* Out: Interrupt Enable Register */
58 #define UART_IIR 2 /* In: Interrupt ID Register */
59 #define UART_FCR 2 /* Out: FIFO Control Register */
61 #define UART_LCR 3 /* Out: Line Control Register */
62 #define UART_MCR 4 /* Out: Modem Control Register */
63 #define UART_LSR 5 /* In: Line Status Register */
64 #define UART_MSR 6 /* In: Modem Status Register */
65 #define UART_SCR 7 /* I/O: Scratch Register */
68 * These are the definitions for the FIFO Control Register
71 #define UART_FCR_ENABLE_FIFO 0x01 /* Enable the FIFO */
72 #define UART_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */
73 #define UART_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */
74 #define UART_FCR_DMA_SELECT 0x08 /* For DMA applications */
75 #define UART_FCR_TRIGGER_MASK 0xC0 /* Mask for the FIFO trigger range */
76 #define UART_FCR_TRIGGER_1 0x00 /* Mask for trigger set at 1 */
77 #define UART_FCR_TRIGGER_4 0x40 /* Mask for trigger set at 4 */
78 #define UART_FCR_TRIGGER_8 0x80 /* Mask for trigger set at 8 */
79 #define UART_FCR_TRIGGER_14 0xC0 /* Mask for trigger set at 14 */
82 * These are the definitions for the Line Control Register
84 * Note: if the word length is 5 bits (UART_LCR_WLEN5), then setting
85 * UART_LCR_STOP will select 1.5 stop bits, not 2 stop bits.
87 #define UART_LCR_DLAB 0x80 /* Divisor latch access bit */
88 #define UART_LCR_SBC 0x40 /* Set break control */
89 #define UART_LCR_SPAR 0x20 /* Stick parity (?) */
90 #define UART_LCR_EPAR 0x10 /* Even parity select */
91 #define UART_LCR_PARITY 0x08 /* Parity Enable */
92 #define UART_LCR_STOP 0x04 /* Stop bits: 0=1 stop bit, 1= 2 stop bits */
93 #define UART_LCR_WLEN5 0x00 /* Wordlength: 5 bits */
94 #define UART_LCR_WLEN6 0x01 /* Wordlength: 6 bits */
95 #define UART_LCR_WLEN7 0x02 /* Wordlength: 7 bits */
96 #define UART_LCR_WLEN8 0x03 /* Wordlength: 8 bits */
99 * These are the definitions for the Line Status Register
101 #define UART_LSR_TEMT 0x40 /* Transmitter empty */
102 #define UART_LSR_THRE 0x20 /* Transmit-hold-register empty */
103 #define UART_LSR_BI 0x10 /* Break interrupt indicator */
104 #define UART_LSR_FE 0x08 /* Frame error indicator */
105 #define UART_LSR_PE 0x04 /* Parity error indicator */
106 #define UART_LSR_OE 0x02 /* Overrun error indicator */
107 #define UART_LSR_DR 0x01 /* Receiver data ready */
110 * These are the definitions for the Interrupt Identification Register
112 #define UART_IIR_NO_INT 0x01 /* No interrupts pending */
113 #define UART_IIR_ID 0x06 /* Mask for the interrupt ID */
115 #define UART_IIR_MSI 0x00 /* Modem status interrupt */
116 #define UART_IIR_THRI 0x02 /* Transmitter holding register empty */
117 #define UART_IIR_RDI 0x04 /* Receiver data interrupt */
118 #define UART_IIR_RLSI 0x06 /* Receiver line status interrupt */
121 * These are the definitions for the Interrupt Enable Register
123 #define UART_IER_MSI 0x08 /* Enable Modem status interrupt */
124 #define UART_IER_RLSI 0x04 /* Enable receiver line status interrupt */
125 #define UART_IER_THRI 0x02 /* Enable Transmitter holding register int. */
126 #define UART_IER_RDI 0x01 /* Enable receiver data interrupt */
129 * These are the definitions for the Modem Control Register
131 #define UART_MCR_LOOP 0x10 /* Enable loopback test mode */
132 #define UART_MCR_OUT2 0x08 /* Out2 complement */
133 #define UART_MCR_OUT1 0x04 /* Out1 complement */
134 #define UART_MCR_RTS 0x02 /* RTS complement */
135 #define UART_MCR_DTR 0x01 /* DTR complement */
138 * These are the definitions for the Modem Status Register
140 #define UART_MSR_DCD 0x80 /* Data Carrier Detect */
141 #define UART_MSR_RI 0x40 /* Ring Indicator */
142 #define UART_MSR_DSR 0x20 /* Data Set Ready */
143 #define UART_MSR_CTS 0x10 /* Clear to Send */
144 #define UART_MSR_DDCD 0x08 /* Delta DCD */
145 #define UART_MSR_TERI 0x04 /* Trailing edge ring indicator */
146 #define UART_MSR_DDSR 0x02 /* Delta DSR */
147 #define UART_MSR_DCTS 0x01 /* Delta CTS */
148 #define UART_MSR_ANY_DELTA 0x0F /* Any of the delta bits! */
150 #endif /* __LINUX_PS2MULT_H */