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Diffstat (limited to 'c/src/lib/libbsp/powerpc/gen5200/i2c/mpc5200mbus.c')
-rw-r--r--c/src/lib/libbsp/powerpc/gen5200/i2c/mpc5200mbus.c68
1 files changed, 34 insertions, 34 deletions
diff --git a/c/src/lib/libbsp/powerpc/gen5200/i2c/mpc5200mbus.c b/c/src/lib/libbsp/powerpc/gen5200/i2c/mpc5200mbus.c
index 23c1345211..0c7dbc5330 100644
--- a/c/src/lib/libbsp/powerpc/gen5200/i2c/mpc5200mbus.c
+++ b/c/src/lib/libbsp/powerpc/gen5200/i2c/mpc5200mbus.c
@@ -195,7 +195,7 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
uint8_t b;
switch (bus->state)
{
-
+
case STATE_UNINITIALIZED:
/* this should never happen. */
mpc5200mbus_machine_error(bus, event);
@@ -206,7 +206,7 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
case EVENT_NEXTMSG: /* Start new message processing */
bus->cmsg++;
/* FALLTHRU */
-
+
case EVENT_TRANSFER: /* Initiate new transfer */
if (bus->cmsg - bus->msg >= bus->nmsg)
{
@@ -217,7 +217,7 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
bus->done(bus->done_arg_ptr);
break;
}
-
+
/* Initiate START or REPEATED START condition on the bus */
if (event == EVENT_TRANSFER)
{
@@ -227,10 +227,10 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
{
mpc5200mbus_rstart(bus);
}
-
+
bus->byte = 0;
mpc5200mbus_tx_mode(bus);
-
+
/* Initiate slave address sending */
if (bus->cmsg->flags & I2C_MSG_ADDR_10)
{
@@ -264,13 +264,13 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
mpc5200mbus_send(bus, b);
}
break;
-
+
default:
mpc5200mbus_machine_error(bus, event);
break;
}
break;
-
+
case STATE_ADDR_7:
switch (event)
{
@@ -282,7 +282,7 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
mpc5200mbus_send_ack(bus);
next_state(bus, STATE_RECEIVING);
break;
-
+
case EVENT_NACK:
mpc5200mbus_error(bus, I2C_NO_DEVICE);
next_state(bus, STATE_IDLE);
@@ -294,14 +294,14 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
next_state(bus, STATE_IDLE);
mpc5200mbus_machine(bus, EVENT_NEXTMSG);
break;
-
+
default:
mpc5200mbus_machine_error(bus, event);
break;
}
break;
- case STATE_ADDR_1_R:
+ case STATE_ADDR_1_R:
case STATE_ADDR_1_W:
switch (event)
{
@@ -325,25 +325,25 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
}
break;
}
-
+
case EVENT_NACK:
mpc5200mbus_error(bus, I2C_NO_DEVICE);
next_state(bus, STATE_IDLE);
mpc5200mbus_machine(bus, EVENT_NEXTMSG);
break;
-
+
case EVENT_ARB_LOST:
mpc5200mbus_error(bus, I2C_ARBITRATION_LOST);
next_state(bus, STATE_IDLE);
mpc5200mbus_machine(bus, EVENT_NEXTMSG);
break;
-
+
default:
mpc5200mbus_machine_error(bus, event);
break;
}
break;
-
+
case STATE_SENDING:
switch (event)
{
@@ -359,7 +359,7 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
next_state(bus, STATE_SENDING);
}
break;
-
+
case EVENT_NACK:
if (bus->byte == 0)
{
@@ -372,20 +372,20 @@ mpc5200mbus_machine(mpc5200mbus *bus, i2c_event event)
next_state(bus, STATE_IDLE);
mpc5200mbus_machine(bus, EVENT_NEXTMSG);
break;
-
+
case EVENT_ARB_LOST:
mpc5200mbus_error(bus, I2C_ARBITRATION_LOST);
next_state(bus, STATE_IDLE);
mpc5200mbus_machine(bus, EVENT_NEXTMSG);
break;
-
+
default:
mpc5200mbus_machine_error(bus, event);
break;
-
+
}
break;
-
+
case STATE_RECEIVING:
switch (event)
{
@@ -444,7 +444,7 @@ void mpc5200mbus_interrupt_handler(rtems_irq_hdl_param handle)
{
i2c_event event;
mpc5200mbus *bus = handle;
-
+
event = mpc5200mbus_get_event(bus);
/*
* clear interrupt bit
@@ -454,34 +454,34 @@ void mpc5200mbus_interrupt_handler(rtems_irq_hdl_param handle)
mpc5200mbus_machine(bus, event);
}
-/*
+/*
* mpc5200_mbus_irq_enable
* enable irq for mbus
*/
void mpc5200mbus_irq_enable(const rtems_irq_connect_data* ptr)
-{
+{
int minor = ((mpc5200mbus*)(ptr->handle))->bus_idx;
mpc5200.i2c_regs[minor].mcr |= MPC5200_I2C_MCR_MIEN;
}
-/*
+/*
* mpc5200_mbus_irq_disable
* enable irq for mbus
*/
void mpc5200mbus_irq_disable(const rtems_irq_connect_data* ptr)
-{
+{
int minor = ((mpc5200mbus*)(ptr->handle))->bus_idx;
mpc5200.i2c_regs[minor].mcr &= ~MPC5200_I2C_MCR_MIEN;
}
-/*
+/*
* mpc5200_mbus_isOn
- * check, whether irq is enabled
+ * check, whether irq is enabled
*/
int mpc5200mbus_irq_isOn(const rtems_irq_connect_data* ptr)
-{
+{
int minor = ((mpc5200mbus*)(ptr->handle))->bus_idx;
return (0 != (mpc5200.i2c_regs[minor].mcr & MPC5200_I2C_MCR_MIEN));
@@ -527,7 +527,7 @@ mpc5200mbus_select_clock_divider(mpc5200mbus *bus, int divider)
int divider;
int mbc;
} dividers[] ={
- { 20, 0x20 }, { 22, 0x21 }, { 24, 0x22 }, { 26, 0x23 },
+ { 20, 0x20 }, { 22, 0x21 }, { 24, 0x22 }, { 26, 0x23 },
{ 28, 0x00 }, { 30, 0x01 }, { 32, 0x25 }, { 34, 0x02 },
{ 36, 0x26 }, { 40, 0x03 }, { 44, 0x04 }, { 48, 0x05 },
{ 56, 0x06 }, { 64, 0x2a }, { 68, 0x07 }, { 72, 0x2B },
@@ -544,7 +544,7 @@ mpc5200mbus_select_clock_divider(mpc5200mbus *bus, int divider)
if (bus == NULL)
return RTEMS_INVALID_ADDRESS;
-
+
for (i = 0, mbc = -1; i < sizeof(dividers)/sizeof(dividers[0]); i++)
{
mbc = dividers[i].mbc;
@@ -578,13 +578,13 @@ mpc5200mbus_initialize(mpc5200mbus *i2c_bus)
if (i2c_bus->state != STATE_UNINITIALIZED) /* Check if already initialized */
return RTEMS_RESOURCE_IN_USE;
-
+
i2c_bus->state = STATE_IDLE;
i2c_bus->msg = NULL;
i2c_bus->cmsg = NULL;
i2c_bus->nmsg = 0;
i2c_bus->byte = 0;
-
+
/*
* install interrupt handler
*/
@@ -614,7 +614,7 @@ mpc5200mbus_initialize(mpc5200mbus *i2c_bus)
mpc5200.i2c_regs[i2c_bus->bus_idx].mcr |= MPC5200_I2C_MCR_MEN;
rtems_interrupt_enable(level);
-
+
return RTEMS_SUCCESSFUL;
}
@@ -639,7 +639,7 @@ mpc5200mbus_i2c_transfer(mpc5200mbus *bus, int nmsg, i2c_message *msg,
{
if (bus->state == STATE_UNINITIALIZED)
return RTEMS_NOT_CONFIGURED;
-
+
bus->done = done;
bus->done_arg_ptr = done_arg_ptr;
bus->cmsg = bus->msg = msg;
@@ -668,7 +668,7 @@ mpc5200mbus_i2c_done(mpc5200mbus *i2c_bus)
if (i2c_bus->state == STATE_UNINITIALIZED)
return RTEMS_NOT_CONFIGURED;
-
+
mpc5200.i2c_regs[i2c_bus->bus_idx].mcr = 0;
return sc;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-10 01:47:25 +0000