input: Drop PS/2 keyboard support

[u-boot] / drivers / input / ps2ser.c

diff --git a/drivers/input/ps2ser.c b/drivers/input/ps2ser.c
deleted file mode 100644 (file)
index 0b5ce06..0000000
--- a/drivers/input/ps2ser.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/***********************************************************************
- *
- * (C) Copyright 2004-2009
- * DENX Software Engineering
- * Wolfgang Denk, wd@denx.de
- *
- * Simple 16550A serial driver
- *
- * Originally from linux source (drivers/char/ps2ser.c)
- *
- * Used by the PS/2 multiplexer driver (ps2mult.c)
- *
- ***********************************************************************/
-
-#include <common.h>
-
-#include <asm/io.h>
-#include <asm/atomic.h>
-#include <ps2mult.h>
-/* This is needed for ns16550.h */
-#ifndef CONFIG_SYS_NS16550_REG_SIZE
-#define CONFIG_SYS_NS16550_REG_SIZE 1
-#endif
-#include <ns16550.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* #define     DEBUG */
-
-#define PS2SER_BAUD    57600
-
-#if CONFIG_PS2SERIAL == 1
-#define COM_BASE (CONFIG_SYS_CCSRBAR+0x4500)
-#elif CONFIG_PS2SERIAL == 2
-#define COM_BASE (CONFIG_SYS_CCSRBAR+0x4600)
-#else
-#error CONFIG_PS2SERIAL must be in 1 ... 2
-#endif
-
-static int     ps2ser_getc_hw(void);
-static void    ps2ser_interrupt(void *dev_id);
-
-extern struct  serial_state rs_table[]; /* in serial.c */
-
-static u_char  ps2buf[PS2BUF_SIZE];
-static atomic_t        ps2buf_cnt;
-static int     ps2buf_in_idx;
-static int     ps2buf_out_idx;
-
-int ps2ser_init(void)
-{
-       NS16550_t com_port = (NS16550_t)COM_BASE;
-
-       com_port->ier = 0x00;
-       com_port->lcr = UART_LCR_BKSE | UART_LCR_8N1;
-       com_port->dll = (CONFIG_SYS_NS16550_CLK / 16 / PS2SER_BAUD) & 0xff;
-       com_port->dlm = ((CONFIG_SYS_NS16550_CLK / 16 / PS2SER_BAUD) >> 8) & 0xff;
-       com_port->lcr = UART_LCR_8N1;
-       com_port->mcr = (UART_MCR_DTR | UART_MCR_RTS);
-       com_port->fcr = (UART_FCR_FIFO_EN | UART_FCR_RXSR | UART_FCR_TXSR);
-
-       return (0);
-}
-
-void ps2ser_putc(int chr)
-{
-       NS16550_t com_port = (NS16550_t)COM_BASE;
-       debug(">>>> 0x%02x\n", chr);
-
-       while ((com_port->lsr & UART_LSR_THRE) == 0);
-       com_port->thr = chr;
-}
-
-static int ps2ser_getc_hw(void)
-{
-       NS16550_t com_port = (NS16550_t)COM_BASE;
-       int res = -1;
-
-       if (com_port->lsr & UART_LSR_DR) {
-               res = com_port->rbr;
-       }
-
-       return res;
-}
-
-int ps2ser_getc(void)
-{
-       volatile int chr;
-       int flags;
-
-       debug("<< ");
-
-       flags = disable_interrupts();
-
-       do {
-               if (atomic_read(&ps2buf_cnt) != 0) {
-                       chr = ps2buf[ps2buf_out_idx++];
-                       ps2buf_out_idx &= (PS2BUF_SIZE - 1);
-                       atomic_dec(&ps2buf_cnt);
-               } else {
-                       chr = ps2ser_getc_hw();
-               }
-       }
-       while (chr < 0);
-
-       if (flags)
-               enable_interrupts();
-
-       debug("0x%02x\n", chr);
-
-       return chr;
-}
-
-int ps2ser_check(void)
-{
-       int flags;
-
-       flags = disable_interrupts();
-       ps2ser_interrupt(NULL);
-       if (flags) enable_interrupts();
-
-       return atomic_read(&ps2buf_cnt);
-}
-
-static void ps2ser_interrupt(void *dev_id)
-{
-       NS16550_t com_port = (NS16550_t)COM_BASE;
-       int chr;
-       int status;
-
-       do {
-               chr = ps2ser_getc_hw();
-               status = com_port->lsr;
-               if (chr < 0) continue;
-
-               if (atomic_read(&ps2buf_cnt) < PS2BUF_SIZE) {
-                       ps2buf[ps2buf_in_idx++] = chr;
-                       ps2buf_in_idx &= (PS2BUF_SIZE - 1);
-                       atomic_inc(&ps2buf_cnt);
-               } else {
-                       printf ("ps2ser.c: buffer overflow\n");
-               }
-       } while (status & UART_LSR_DR);
-       if (atomic_read(&ps2buf_cnt)) {
-               ps2mult_callback(atomic_read(&ps2buf_cnt));
-       }
-}