diff options
Diffstat (limited to 'drivers/ps2ser.c')
| -rw-r--r-- | drivers/ps2ser.c | 55 |
1 files changed, 51 insertions, 4 deletions
diff --git a/drivers/ps2ser.c b/drivers/ps2ser.c index 724fa40..4e304f7 100644 --- a/drivers/ps2ser.c +++ b/drivers/ps2ser.c @@ -20,6 +20,9 @@ #include <asm/io.h> #include <asm/atomic.h> #include <ps2mult.h> +#if defined(CFG_NS16550) || defined(CONFIG_MPC85xx) +#include <ns16550.h> +#endif DECLARE_GLOBAL_DATA_PTR; @@ -45,13 +48,24 @@ DECLARE_GLOBAL_DATA_PTR; #else #error CONFIG_PS2SERIAL must be in 1 ... 6 #endif -#endif /* CONFIG_MPC5xxx */ + +#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555) + +#if CONFIG_PS2SERIAL == 1 +#define COM_BASE (CFG_CCSRBAR+0x4500) +#elif CONFIG_PS2SERIAL == 2 +#define COM_BASE (CFG_CCSRBAR+0x4600) +#else +#error CONFIG_PS2SERIAL must be in 1 ... 2 +#endif + +#endif /* CONFIG_MPC5xxx / CONFIG_MPC8540 / other */ static int ps2ser_getc_hw(void); static void ps2ser_interrupt(void *dev_id); extern struct serial_state rs_table[]; /* in serial.c */ -#ifndef CONFIG_MPC5xxx +#if !defined(CONFIG_MPC5xxx) && !defined(CONFIG_MPC8540) && !defined(CONFIG_MPC8541) && !defined(CONFIG_MPC8555) static struct serial_state *state; #endif @@ -106,7 +120,23 @@ int ps2ser_init(void) return (0); } -#else /* !CONFIG_MPC5xxx */ +#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555) +int ps2ser_init(void) +{ + NS16550_t com_port = (NS16550_t)COM_BASE; + + com_port->ier = 0x00; + com_port->lcr = LCR_BKSE | LCR_8N1; + com_port->dll = (CFG_NS16550_CLK / 16 / PS2SER_BAUD) & 0xff; + com_port->dlm = ((CFG_NS16550_CLK / 16 / PS2SER_BAUD) >> 8) & 0xff; + com_port->lcr = LCR_8N1; + com_port->mcr = (MCR_DTR | MCR_RTS); + com_port->fcr = (FCR_FIFO_EN | FCR_RXSR | FCR_TXSR); + + return (0); +} + +#else /* !CONFIG_MPC5xxx && !CONFIG_MPC8540 / other */ static inline unsigned int ps2ser_in(int offset) { @@ -150,12 +180,14 @@ int ps2ser_init(void) return 0; } -#endif /* CONFIG_MPC5xxx */ +#endif /* CONFIG_MPC5xxx / CONFIG_MPC8540 / 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_MPC8555) + NS16550_t com_port = (NS16550_t)COM_BASE; #endif #ifdef DEBUG printf(">>>> 0x%02x\n", chr); @@ -165,6 +197,9 @@ void ps2ser_putc(int chr) while (!(psc->psc_status & PSC_SR_TXRDY)); psc->psc_buffer_8 = chr; +#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555) + while ((com_port->lsr & LSR_THRE) == 0); + com_port->thr = chr; #else while (!(ps2ser_in(UART_LSR) & UART_LSR_THRE)); @@ -176,6 +211,8 @@ 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_MPC8555) + NS16550_t com_port = (NS16550_t)COM_BASE; #endif int res = -1; @@ -183,6 +220,10 @@ 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_MPC8555) + if (com_port->lsr & LSR_DR) { + res = com_port->rbr; + } #else if (ps2ser_in(UART_LSR) & UART_LSR_DR) { res = (ps2ser_in(UART_RX)); @@ -238,6 +279,8 @@ 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_MPC8555) + NS16550_t com_port = (NS16550_t)COM_BASE; #endif int chr; int status; @@ -246,6 +289,8 @@ 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_MPC8555) + status = com_port->lsr; #else status = ps2ser_in(UART_IIR); #endif @@ -260,6 +305,8 @@ static void ps2ser_interrupt(void *dev_id) } #ifdef CONFIG_MPC5xxx } while (status & PSC_SR_RXRDY); +#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555) + } while (status & LSR_DR); #else } while (status & UART_IIR_RDI); #endif |