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path: root/drivers/input/ps2ser.c
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Diffstat (limited to 'drivers/input/ps2ser.c')
-rw-r--r--drivers/input/ps2ser.c109
1 files changed, 17 insertions, 92 deletions
diff --git a/drivers/input/ps2ser.c b/drivers/input/ps2ser.c
index 8d0b6d6..a655a16 100644
--- a/drivers/input/ps2ser.c
+++ b/drivers/input/ps2ser.c
@@ -46,8 +46,7 @@ DECLARE_GLOBAL_DATA_PTR;
#error CONFIG_PS2SERIAL must be in 1 ... 6
#endif
-#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
+#else
#if CONFIG_PS2SERIAL == 1
#define COM_BASE (CONFIG_SYS_CCSRBAR+0x4500)
@@ -57,17 +56,12 @@ DECLARE_GLOBAL_DATA_PTR;
#error CONFIG_PS2SERIAL must be in 1 ... 2
#endif
-#endif /* CONFIG_MPC5xxx / CONFIG_MPC8540 / other */
+#endif /* CONFIG_MPC5xxx / other */
static int ps2ser_getc_hw(void);
static void ps2ser_interrupt(void *dev_id);
extern struct serial_state rs_table[]; /* in serial.c */
-#if !defined(CONFIG_MPC5xxx) && !defined(CONFIG_MPC8540) && \
- !defined(CONFIG_MPC8541) && !defined(CONFIG_MPC8548) && \
- !defined(CONFIG_MPC8555)
-static struct serial_state *state;
-#endif
static u_char ps2buf[PS2BUF_SIZE];
static atomic_t ps2buf_cnt;
@@ -111,8 +105,8 @@ int ps2ser_init(void)
return (0);
}
-#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
+#else
+
int ps2ser_init(void)
{
NS16550_t com_port = (NS16550_t)COM_BASE;
@@ -128,76 +122,24 @@ int ps2ser_init(void)
return (0);
}
-#else /* !CONFIG_MPC5xxx && !CONFIG_MPC8540 / other */
-
-static inline unsigned int ps2ser_in(int offset)
-{
- return readb((unsigned long) state->iomem_base + offset);
-}
-
-static inline void ps2ser_out(int offset, int value)
-{
- writeb(value, (unsigned long) state->iomem_base + offset);
-}
-
-int ps2ser_init(void)
-{
- int quot;
- unsigned cval;
-
- state = rs_table + CONFIG_PS2SERIAL;
-
- quot = state->baud_base / PS2SER_BAUD;
- cval = 0x3; /* 8N1 - 8 data bits, no parity bits, 1 stop bit */
-
- /* Set speed, enable interrupts, enable FIFO
- */
- ps2ser_out(UART_LCR, cval | UART_LCR_DLAB);
- ps2ser_out(UART_DLL, quot & 0xff);
- ps2ser_out(UART_DLM, quot >> 8);
- ps2ser_out(UART_LCR, cval);
- ps2ser_out(UART_IER, UART_IER_RDI);
- ps2ser_out(UART_MCR, UART_MCR_OUT2 | UART_MCR_DTR | UART_MCR_RTS);
- ps2ser_out(UART_FCR,
- UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
-
- /* If we read 0xff from the LSR, there is no UART here
- */
- if (ps2ser_in(UART_LSR) == 0xff) {
- printf ("ps2ser.c: no UART found\n");
- return -1;
- }
-
- irq_install_handler(state->irq, ps2ser_interrupt, NULL);
-
- return 0;
-}
-#endif /* CONFIG_MPC5xxx / CONFIG_MPC8540 / other */
+#endif /* CONFIG_MPC5xxx / other */
void ps2ser_putc(int chr)
{
#ifdef CONFIG_MPC5xxx
volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
-#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
+#else
NS16550_t com_port = (NS16550_t)COM_BASE;
#endif
-#ifdef DEBUG
- printf(">>>> 0x%02x\n", chr);
-#endif
+ debug(">>>> 0x%02x\n", chr);
#ifdef CONFIG_MPC5xxx
while (!(psc->psc_status & PSC_SR_TXRDY));
psc->psc_buffer_8 = chr;
-#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
+#else
while ((com_port->lsr & UART_LSR_THRE) == 0);
com_port->thr = chr;
-#else
- while (!(ps2ser_in(UART_LSR) & UART_LSR_THRE));
-
- ps2ser_out(UART_TX, chr);
#endif
}
@@ -205,8 +147,7 @@ static int ps2ser_getc_hw(void)
{
#ifdef CONFIG_MPC5xxx
volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
-#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
+#else
NS16550_t com_port = (NS16550_t)COM_BASE;
#endif
int res = -1;
@@ -215,15 +156,10 @@ static int ps2ser_getc_hw(void)
if (psc->psc_status & PSC_SR_RXRDY) {
res = (psc->psc_buffer_8);
}
-#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
+#else
if (com_port->lsr & UART_LSR_DR) {
res = com_port->rbr;
}
-#else
- if (ps2ser_in(UART_LSR) & UART_LSR_DR) {
- res = (ps2ser_in(UART_RX));
- }
#endif
return res;
@@ -234,9 +170,7 @@ int ps2ser_getc(void)
volatile int chr;
int flags;
-#ifdef DEBUG
- printf("<< ");
-#endif
+ debug("<< ");
flags = disable_interrupts();
@@ -251,11 +185,10 @@ int ps2ser_getc(void)
}
while (chr < 0);
- if (flags) enable_interrupts();
+ if (flags)
+ enable_interrupts();
-#ifdef DEBUG
- printf("0x%02x\n", chr);
-#endif
+ debug("0x%02x\n", chr);
return chr;
}
@@ -275,8 +208,7 @@ static void ps2ser_interrupt(void *dev_id)
{
#ifdef CONFIG_MPC5xxx
volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
-#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
+#else
NS16550_t com_port = (NS16550_t)COM_BASE;
#endif
int chr;
@@ -286,11 +218,8 @@ static void ps2ser_interrupt(void *dev_id)
chr = ps2ser_getc_hw();
#ifdef CONFIG_MPC5xxx
status = psc->psc_status;
-#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
- status = com_port->lsr;
#else
- status = ps2ser_in(UART_IIR);
+ status = com_port->lsr;
#endif
if (chr < 0) continue;
@@ -303,13 +232,9 @@ static void ps2ser_interrupt(void *dev_id)
}
#ifdef CONFIG_MPC5xxx
} while (status & PSC_SR_RXRDY);
-#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
- defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
- } while (status & UART_LSR_DR);
#else
- } while (status & UART_IIR_RDI);
+ } while (status & UART_LSR_DR);
#endif
-
if (atomic_read(&ps2buf_cnt)) {
ps2mult_callback(atomic_read(&ps2buf_cnt));
}