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Files |
| file | cyclic_buffer.h |
| file | ns8250.c |
Data Structures |
| struct | cyclic_buffer |
| struct | ns8250 |
| | The driver data for the serial port devices. More...
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Defines |
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#define | BUF_LEN 256 |
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#define | DLAB_MASK (1 << 7) |
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#define | MAX_BAUD_RATE 115200 |
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#define | NAME "ns8250" |
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#define | NS8250(fnode) ((ns8250_t *) ((fnode)->dev->driver_data)) |
| | Obtain soft-state structure from function node.
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#define | NS8250_FROM_DEV(dnode) ((ns8250_t *) ((dnode)->driver_data)) |
| | Obtain soft-state structure from device node.
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#define | REG_COUNT 7 |
Typedefs |
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typedef ns8250 | ns8250_t |
| | The driver data for the serial port devices.
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Enumerations |
| enum | stop_bit_t { ONE_STOP_BIT,
TWO_STOP_BITS
} |
| | The number of stop bits used by the serial port. More...
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| enum | word_length_t |
| | The number of bits of one data unit send by the serial port.
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Functions |
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static void | buf_clear (cyclic_buffer_t *buf) |
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static bool | buf_is_empty (cyclic_buffer_t *buf) |
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static uint8_t | buf_pop_front (cyclic_buffer_t *buf) |
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static bool | buf_push_back (cyclic_buffer_t *buf, uint8_t item) |
| static void | clear_dlab (ioport8_t *port) |
| | Clear Divisor Latch Access Bit.
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| static void | enable_dlab (ioport8_t *port) |
| | Set Divisor Latch Access Bit.
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| static bool | is_transmit_empty (ioport8_t *port) |
| | Find out wheter it is possible to send data.
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| int | main (int argc, char *argv[]) |
| | Main entry point.
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| static int | ns8250_add_device (ddf_dev_t *dev) |
| | The add_device callback method of the serial port driver.
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| static void | ns8250_close (ddf_fun_t *fun) |
| | Close the device.
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| static void | ns8250_default_handler (ddf_fun_t *fun, ipc_callid_t callid, ipc_call_t *call) |
| | Default handler for client requests which are not handled by the standard interfaces.
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| static void | ns8250_delete (ns8250_t *ns) |
| | Delete soft-state structure.
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| static void | ns8250_dev_cleanup (ns8250_t *ns) |
| | Clean up the serial port soft-state.
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| static int | ns8250_dev_initialize (ns8250_t *ns) |
| | Initialize serial port device.
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| static bool | ns8250_dev_probe (ns8250_t *ns) |
| | Probe the serial port device for its presence.
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| static void | ns8250_get_props (ddf_dev_t *dev, unsigned int *baud_rate, unsigned int *parity, unsigned int *word_length, unsigned int *stop_bits) |
| | Get parameters of the serial communication which are set to the specified device.
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| static void | ns8250_init (void) |
| | Initialize the serial port driver.
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| static void | ns8250_initialize_port (ns8250_t *ns) |
| | Initialize the serial port device.
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| static int | ns8250_interrupt_enable (ns8250_t *ns) |
| | Enable interrupts for the serial port device.
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| static void | ns8250_interrupt_handler (ddf_dev_t *dev, ipc_callid_t iid, ipc_call_t *icall) |
| | The interrupt handler.
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| static ns8250_t * | ns8250_new (void) |
| | Create per-device soft-state structure.
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| static int | ns8250_open (ddf_fun_t *fun) |
| | Open the device.
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| static bool | ns8250_pio_enable (ns8250_t *ns) |
| | Enable the i/o ports of the device.
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| static unsigned int | ns8250_port_get_baud_rate (ioport8_t *port) |
| | Get baud rate used by the serial port device.
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| static void | ns8250_port_get_com_props (ioport8_t *port, unsigned int *parity, unsigned int *word_length, unsigned int *stop_bits) |
| | Get the parameters of the serial communication set on the serial port device.
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| static void | ns8250_port_interrupts_disable (ioport8_t *port) |
| | Disable interrupts on the serial port device.
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| static void | ns8250_port_interrupts_enable (ioport8_t *port) |
| | Enable interrupts on the serial port device.
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| static int | ns8250_port_set_baud_rate (ioport8_t *port, unsigned int baud_rate) |
| | Set baud rate of the serial communication on the serial device.
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| static int | ns8250_port_set_com_props (ioport8_t *port, unsigned int parity, unsigned int word_length, unsigned int stop_bits) |
| | Set the parameters of the serial communication on the serial port device.
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| static void | ns8250_putchar (ns8250_t *ns, uint8_t c) |
| | Write a character to the serial port.
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| static int | ns8250_read (ddf_fun_t *fun, char *buf, size_t count) |
| | Read data from the serial port device.
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| static uint8_t | ns8250_read_8 (ioport8_t *port) |
| | Read one byte from the serial port.
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| static void | ns8250_read_from_device (ns8250_t *ns) |
| | Read the data from the serial port device and store them to the input buffer.
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| static bool | ns8250_received (ioport8_t *port) |
| | Find out if there is some incomming data available on the serial port.
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| static int | ns8250_register_interrupt_handler (ns8250_t *ns) |
| | Register the interrupt handler for the device.
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| static int | ns8250_set_props (ddf_dev_t *dev, unsigned int baud_rate, unsigned int parity, unsigned int word_length, unsigned int stop_bits) |
| | Set parameters of the serial communication to the specified serial port device.
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| static int | ns8250_unregister_interrupt_handler (ns8250_t *ns) |
| | Unregister the interrupt handler for the device.
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| static int | ns8250_write (ddf_fun_t *fun, char *buf, size_t count) |
| | Write data to the serial port.
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| static void | ns8250_write_8 (ioport8_t *port, uint8_t c) |
| | Write one character on the serial port.
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Variables |
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static char_dev_ops_t | ns8250_char_dev_ops |
| | The character interface's callbacks.
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static ddf_dev_ops_t | ns8250_dev_ops |
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static driver_t | ns8250_driver |
| | The serial port device driver structure.
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static driver_ops_t | ns8250_ops |
| | The serial port device driver's standard operations.
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