static void int1_unmask(struct irq_data *d)
{
u32 intmr1;
intmr1 = clps_readl(INTMR1);
intmr1 |= 1 << d->irq;
clps_writel(intmr1, INTMR1);
}
static void int3_unmask(struct irq_data *d)
{
u32 intmr3;
intmr3 = clps_readl(INTMR3);
intmr3 |= 1 << (d->irq - 32);
clps_writel(intmr3, INTMR3);
}
static void int2_unmask(struct irq_data *d)
{
u32 intmr2;
intmr2 = clps_readl(INTMR2);
intmr2 |= 1 << (d->irq - 16);
clps_writel(intmr2, INTMR2);
}
static void int2_mask(unsigned int irq)
{
u32 intmr2;
intmr2 = clps_readl(INTMR2);
intmr2 &= ~(1 << (irq - 16));
clps_writel(intmr2, INTMR2);
}
static void int1_mask(unsigned int irq)
{
u32 intmr1;
intmr1 = clps_readl(INTMR1);
intmr1 &= ~(1 << irq);
clps_writel(intmr1, INTMR1);
}
int setup_cs43l42(void)
{
volatile long u;
volatile char port_d;
printk("cs43l42: init dac\n");
port_d = clps_readb(PDDR) & ~(SCL | SDA);
/* enable codec_en# */
reset_cs43l42();
/* make SDA & SCL outputs */
make_scl_sda_outputs();
/*
* enable the two wire serial interface on the CS43L42
* by setting the CP_EN bit (bit 0) of register 1
*/
cs43l42_i2c_write(ADDR_CS43L42, CS43L42_PWRCTL, 0xd2);
/* set the data format to left justified */
cs43l42_i2c_write(ADDR_CS43L42, 0x0b, 0x02);
/* power on the DAC */
cs43l42_i2c_write(ADDR_CS43L42, CS43L42_PWRCTL, 0xd0);
/* delay while the DAC initializes */
for(u = 0; u < 15; u++)
udelay(5);
cs43l42_i2c_write(ADDR_CS43L42, 2, 0xf1);
cs43l42_i2c_write(ADDR_CS43L42, 3, 0xf1);
#if 0
cs43l42_dump_regs();
printk("syscon1 %08x\n", clps_readl(SYSCON1));
printk("syscon2 %08x\n", clps_readl(SYSCON2));
printk("syscon3 %08x\n", clps_readl(SYSCON3));
#endif
/* restore original port D value */
port_d |= clps_readb(PDDR);
clps_writeb(port_d, PDDR);
printk("cs43l42: init dac complete\n");
return 0;
}
static void __init clps711x_timer_init(void)
{
struct timespec tv;
unsigned int syscon;
syscon = clps_readl(SYSCON1);
syscon |= SYSCON1_TC2S | SYSCON1_TC2M;
clps_writel(syscon, SYSCON1);
clps_writel(LATCH-1, TC2D); /* 512kHz / 100Hz - 1 */
setup_irq(IRQ_TC2OI, &clps711x_timer_irq);
tv.tv_nsec = 0;
tv.tv_sec = clps_readl(RTCDR);
do_settimeofday(&tv);
}
static void unmask_irq_int2(unsigned int irq)
{
u32 intmr2;
intmr2 = clps_readl(INTMR2);
intmr2 |= 1 << (irq - 16);
clps_writel(intmr2, INTMR2);
}
static void unmask_irq_int1(unsigned int irq)
{
u32 intmr1;
intmr1 = clps_readl(INTMR1);
intmr1 |= 1 << irq;
clps_writel(intmr1, INTMR1);
}
static void uart_clps711x_shutdown(struct uart_port *port)
{
/* Free the interrupts */
devm_free_irq(port->dev, TX_IRQ(port), port);
devm_free_irq(port->dev, RX_IRQ(port), port);
/* Disable the port */
clps_writel(clps_readl(SYSCON(port)) & ~SYSCON_UARTEN, SYSCON(port));
}
MACHINE_END
static int guide_a07_hw_init(void)
{
/* in cs[1] (the FPGA), set zero wait states, clkenb, and sqaen */
u32 memcfg1 = 0xfc << 8;
memcfg1 |= clps_readl(MEMCFG1);
clps_writel(memcfg1, MEMCFG1);
return 0;
}
static void clps711xuart_break_ctl(struct uart_port *port, int break_state)
{
unsigned int ubrlcr;
ubrlcr = clps_readl(UBRLCR(port));
if (break_state == -1)
ubrlcr |= UBRLCR_BREAK;
else
ubrlcr &= ~UBRLCR_BREAK;
clps_writel(ubrlcr, UBRLCR(port));
}
static int ep7211_close(struct sir_dev *dev)
{
unsigned int syscon;
/* Turn off the SIR encoder. */
syscon = clps_readl(SYSCON1);
syscon &= ~SYSCON1_SIREN;
clps_writel(syscon, SYSCON1);
return 0;
}
static void uart_clps711x_console_write(struct console *co, const char *c,
unsigned n)
{
struct clps711x_port *s = (struct clps711x_port *)co->data;
struct uart_port *port = &s->port[co->index];
u32 syscon;
/* Ensure that the port is enabled */
syscon = clps_readl(SYSCON(port));
clps_writel(syscon | SYSCON_UARTEN, SYSCON(port));
uart_console_write(port, c, n, uart_clps711x_console_putchar);
/* Wait for transmitter to become empty */
while (clps_readl(SYSFLG(port)) & SYSFLG_UBUSY)
barrier();
/* Restore the uart state */
clps_writel(syscon, SYSCON(port));
}
static irqreturn_t uart_clps711x_int_rx(int irq, void *dev_id)
{
struct uart_port *port = dev_id;
struct tty_struct *tty = tty_port_tty_get(&port->state->port);
unsigned int status, ch, flg;
if (!tty)
return IRQ_HANDLED;
for (;;) {
status = clps_readl(SYSFLG(port));
if (status & SYSFLG_URXFE)
break;
ch = clps_readw(UARTDR(port));
status = ch & (UARTDR_FRMERR | UARTDR_PARERR | UARTDR_OVERR);
ch &= 0xff;
port->icount.rx++;
flg = TTY_NORMAL;
if (unlikely(status)) {
if (status & UARTDR_PARERR)
port->icount.parity++;
else if (status & UARTDR_FRMERR)
port->icount.frame++;
else if (status & UARTDR_OVERR)
port->icount.overrun++;
status &= port->read_status_mask;
if (status & UARTDR_PARERR)
flg = TTY_PARITY;
else if (status & UARTDR_FRMERR)
flg = TTY_FRAME;
else if (status & UARTDR_OVERR)
flg = TTY_OVERRUN;
}
if (uart_handle_sysrq_char(port, ch))
continue;
if (status & port->ignore_status_mask)
continue;
uart_insert_char(port, status, UARTDR_OVERR, ch, flg);
}
tty_flip_buffer_push(tty);
tty_kref_put(tty);
return IRQ_HANDLED;
}
static void int2_ack(unsigned int irq)
{
u32 intmr2;
intmr2 = clps_readl(INTMR2);
intmr2 &= ~(1 << (irq - 16));
clps_writel(intmr2, INTMR2);
switch (irq) {
case IRQ_KBDINT: clps_writel(0, KBDEOI); break;
}
}
static void int2_ack(struct irq_data *d)
{
u32 intmr2;
intmr2 = clps_readl(INTMR2);
intmr2 &= ~(1 << (d->irq - 16));
clps_writel(intmr2, INTMR2);
switch (d->irq) {
case IRQ_KBDINT: clps_writel(0, KBDEOI); break;
}
}
/*
* Print a string to the serial port trying not to disturb
* any possible real use of the port...
*
* The console_lock must be held when we get here.
*
* Note that this is called with interrupts already disabled
*/
static void
clps711xuart_console_write(struct console *co, const char *s,
unsigned int count)
{
struct uart_port *port = clps711x_ports + co->index;
unsigned int status, syscon;
int i;
/*
* Ensure that the port is enabled.
*/
syscon = clps_readl(SYSCON(port));
clps_writel(syscon | SYSCON_UARTEN, SYSCON(port));
/*
* Now, do each character
*/
for (i = 0; i < count; i++) {
do {
status = clps_readl(SYSFLG(port));
} while (status & SYSFLG_UTXFF);
clps_writel(s[i], UARTDR(port));
if (s[i] == '\n') {
do {
status = clps_readl(SYSFLG(port));
} while (status & SYSFLG_UTXFF);
clps_writel('\r', UARTDR(port));
}
}
/*
* Finally, wait for transmitter to become empty
* and restore the uart state.
*/
do {
status = clps_readl(SYSFLG(port));
} while (status & SYSFLG_UBUSY);
clps_writel(syscon, SYSCON(port));
}
static void clps711xuart_break_ctl(struct uart_port *port, int break_state)
{
unsigned long flags;
unsigned int ubrlcr;
spin_lock_irqsave(&port->lock, flags);
ubrlcr = clps_readl(UBRLCR(port));
if (break_state == -1)
ubrlcr |= UBRLCR_BREAK;
else
ubrlcr &= ~UBRLCR_BREAK;
clps_writel(ubrlcr, UBRLCR(port));
spin_unlock_irqrestore(&port->lock, flags);
}
static void clps711xuart_shutdown(struct uart_port *port)
{
unsigned int ubrlcr, syscon;
/*
* Free the interrupt
*/
free_irq(TX_IRQ(port), port); /* TX interrupt */
free_irq(RX_IRQ(port), port); /* RX interrupt */
/*
* disable the port
*/
syscon = clps_readl(SYSCON(port));
syscon &= ~SYSCON_UARTEN;
clps_writel(syscon, SYSCON(port));
/*
* disable break condition and fifos
*/
ubrlcr = clps_readl(UBRLCR(port));
ubrlcr &= ~(UBRLCR_FIFOEN | UBRLCR_BREAK);
clps_writel(ubrlcr, UBRLCR(port));
}
static void ep7211_ir_open(dongle_t *self, struct qos_info *qos)
{
unsigned int syscon1, flags;
spin_lock_irqsave(&ep7211_lock, flags);
/* Turn on the SIR encoder. */
syscon1 = clps_readl(SYSCON1);
syscon1 |= SYSCON1_SIREN;
clps_writel(syscon1, SYSCON1);
/* XXX: We should disable modem status interrupts on the first
UART (interrupt #14). */
spin_unlock_irqrestore(&ep7211_lock, flags);
}
static void ep7211_ir_close(dongle_t *self)
{
unsigned int syscon1, flags;
spin_lock_irqsave(&ep7211_lock, flags);
/* Turn off the SIR encoder. */
syscon1 = clps_readl(SYSCON1);
syscon1 &= ~SYSCON1_SIREN;
clps_writel(syscon1, SYSCON1);
/* XXX: If we've disabled the modem status interrupts, we should
reset them back to their original state. */
spin_unlock_irqrestore(&ep7211_lock, flags);
}
static void int1_ack(unsigned int irq)
{
u32 intmr1;
intmr1 = clps_readl(INTMR1);
intmr1 &= ~(1 << irq);
clps_writel(intmr1, INTMR1);
switch (irq) {
case IRQ_CSINT: clps_writel(0, COEOI); break;
case IRQ_TC1OI: clps_writel(0, TC1EOI); break;
case IRQ_TC2OI: clps_writel(0, TC2EOI); break;
case IRQ_RTCMI: clps_writel(0, RTCEOI); break;
case IRQ_TINT: clps_writel(0, TEOI); break;
case IRQ_UMSINT: clps_writel(0, UMSEOI); break;
}
}
static unsigned int uart_clps711x_get_mctrl(struct uart_port *port)
{
unsigned int status, result = 0;
if (port->line == 0) {
status = clps_readl(SYSFLG1);
if (status & SYSFLG1_DCD)
result |= TIOCM_CAR;
if (status & SYSFLG1_DSR)
result |= TIOCM_DSR;
if (status & SYSFLG1_CTS)
result |= TIOCM_CTS;
} else
result = TIOCM_DSR | TIOCM_CTS | TIOCM_CAR;
return result;
}
static void ep7211_ir_open(dongle_t *self, struct qos_info *qos)
{
unsigned int syscon1, flags;
save_flags(flags); cli();
/* Turn on the SIR encoder. */
syscon1 = clps_readl(SYSCON1);
syscon1 |= SYSCON1_SIREN;
clps_writel(syscon1, SYSCON1);
/* XXX: We should disable modem status interrupts on the first
UART (interrupt #14). */
restore_flags(flags);
MOD_INC_USE_COUNT;
}
static void ep7211_ir_close(dongle_t *self)
{
unsigned int syscon1, flags;
save_flags(flags); cli();
/* Turn off the SIR encoder. */
syscon1 = clps_readl(SYSCON1);
syscon1 &= ~SYSCON1_SIREN;
clps_writel(syscon1, SYSCON1);
/* XXX: If we've disabled the modem status interrupts, we should
reset them back to their original state. */
restore_flags(flags);
MOD_DEC_USE_COUNT;
}
static unsigned int clps711xuart_get_mctrl(struct uart_port *port)
{
unsigned int port_addr;
unsigned int result = 0;
unsigned int status;
port_addr = SYSFLG(port);
if (port_addr == SYSFLG1) {
status = clps_readl(SYSFLG1);
if (status & SYSFLG1_DCD)
result |= TIOCM_CAR;
if (status & SYSFLG1_DSR)
result |= TIOCM_DSR;
if (status & SYSFLG1_CTS)
result |= TIOCM_CTS;
}
return result;
}
static void clps711xuart_console_putchar(struct uart_port *port, int ch)
{
while (clps_readl(SYSFLG(port)) & SYSFLG_UTXFF)
barrier();
clps_writel(ch, UARTDR(port));
}
static unsigned int uart_clps711x_tx_empty(struct uart_port *port)
{
return (clps_readl(SYSFLG(port) & SYSFLG_UBUSY)) ? 0 : TIOCSER_TEMT;
}
static unsigned int clps711xuart_tx_empty(struct uart_port *port)
{
unsigned int status = clps_readl(SYSFLG(port));
return status & SYSFLG_UBUSY ? 0 : TIOCSER_TEMT;
}
