diff options
Diffstat (limited to 'c/src/lib/libbsp/i386/pc386/console/exar17d15x.c')
| -rw-r--r-- | c/src/lib/libbsp/i386/pc386/console/exar17d15x.c | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/c/src/lib/libbsp/i386/pc386/console/exar17d15x.c b/c/src/lib/libbsp/i386/pc386/console/exar17d15x.c deleted file mode 100644 index d9929c36b4..0000000000 --- a/c/src/lib/libbsp/i386/pc386/console/exar17d15x.c +++ /dev/null @@ -1,224 +0,0 @@ -/** - * @file - * - * @brief Driver for Exar XR17D15x Multiport UARTs - * - * This driver supports 2, 4 or 8 port Exar parts which are NS16550 - * compatible. - */ - -/* - * COPYRIGHT (c) 1989-2012. - * On-Line Applications Research Corporation (OAR). - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#include <bsp.h> -#include <termios.h> -#include <stdio.h> -#include <stdlib.h> - -#include <rtems/termiostypes.h> -#include <libchip/serial.h> -#include <libchip/ns16550.h> -#include <rtems/bspIo.h> -#include <rtems/pci.h> -#include <bsp/exar17d15x.h> -#include "../../../../../../../bsps/shared/dev/serial/legacy-console.h" - -#define MAX_BOARDS 4 - -/* - * This is the rate for the clock internal to the parts. - */ -#define EXAR_CLOCK_RATE (921600*16) - -/* - * Supported PCI Ids - */ -#define PCI_VENDOR_ID_EXAR 0x13A8 -#define PCI_VENDOR_ID_EXAR_XR17D158 0x0158 -#define PCI_VENDOR_ID_EXAR_XR17D154 0x0154 -#define PCI_VENDOR_ID_EXAR_XR17D152 0x0152 - -/* - * Structure to manage each instance found. - */ -typedef struct { - uint16_t vendor; - uint16_t device; - uint8_t ports; -} exar_parts_t; - -static exar_parts_t Supported[] = { - { PCI_VENDOR_ID_EXAR, PCI_VENDOR_ID_EXAR_XR17D158, 8 }, - { PCI_VENDOR_ID_EXAR, PCI_VENDOR_ID_EXAR_XR17D154, 4 }, - { PCI_VENDOR_ID_EXAR, PCI_VENDOR_ID_EXAR_XR17D152, 2 }, - { 0, 0, 0 } -}; - -/* - * Information saved from PCI scan - */ -typedef struct { - bool found; - uint32_t base; - uint8_t irq; - uint8_t bus; - uint8_t slot; - uint8_t ports; -} exar17d15x_conf_t; - -/* - * Register Access Routines - */ -static uint8_t xr17d15x_get_register(uint32_t addr, uint8_t i) -{ - uint8_t val = 0; - volatile uint8_t *reg = (volatile uint8_t *)(addr + i); - - val = *reg; - // printk( "RD %p -> 0x%02x\n", reg, val ); - return val; -} - -static void xr17d15x_set_register(uint32_t addr, uint8_t i, uint8_t val) -{ - volatile uint8_t *reg = (volatile uint8_t *)(addr + i); - - // printk( "WR %p <- 0x%02x\n", reg, val ); - *reg = val; -} - -rtems_device_driver exar17d15x_initialize( - rtems_device_major_number major, - rtems_device_minor_number minor_arg, - void *arg -) -{ - // int pbus, pdev, pfun; - exar17d15x_conf_t conf[MAX_BOARDS]; - int boards = 0; - int b = 0; - int p; - console_tbl *ports; - console_tbl *port_p; - int pbus; - int pdev; - int pfun; - int status; - int instance; - int i; - int total_ports = 0; - - for ( b=0 ; b<MAX_BOARDS ; b++ ) { - conf[b].found = false; - } - - /* - * Scan for Serial port boards - * - * NOTE: There appear to be Exar parts with 2 and 4 ports which would - * be easy to support. Just change the hard-coded 8 ports per - * board to variable and adjust. - * - * NOTE: There are likely other board vendors which could be supported - * by this. - */ - for ( instance=0 ; instance < MAX_BOARDS ; instance++ ) { - - for ( i=0 ; Supported[i].ports != 0 ; i++ ) { - status = pci_find_device( - Supported[i].vendor, - Supported[i].device, - instance, - &pbus, - &pdev, - &pfun - ); - if ( status == PCIB_ERR_SUCCESS ) { - boards++; - conf[instance].found = true; - conf[instance].ports = Supported[i].ports; - total_ports += conf[instance].ports; - break; - } - } - - if ( status != PCIB_ERR_SUCCESS ) - continue; - - pci_read_config_byte( - pbus, - pdev, - pfun, - PCI_INTERRUPT_LINE, - &conf[instance].irq - ); - pci_read_config_dword( - pbus, - pdev, - pfun, - PCI_BASE_ADDRESS_0, - &conf[instance].base - ); - printk( - "Found Exar 17D15x %d at 0x%08lx IRQ %d with %d ports\n", - instance, - conf[instance].base, - conf[instance].irq, - conf[instance].ports - ); - } - - /* - * Now allocate array of device structures and fill them in - */ - ports = calloc( total_ports, sizeof( console_tbl ) ); - port_p = ports; - for ( b=0 ; b<MAX_BOARDS ; b++ ) { - if ( conf[b].found == false ) - continue; - for ( p=0 ; p<conf[b].ports ; p++ ) { - char name[32]; - - sprintf( name, "/dev/exar17d15x_%d_%d", b, p ); - //printk("Found %s\n", name ); - port_p->sDeviceName = strdup( name ); - port_p->deviceType = SERIAL_NS16550; - #if 1 - port_p->pDeviceFns = &ns16550_fns_polled; - #else - port_p->pDeviceFns = &ns16550_fns; - #endif - - port_p->deviceProbe = NULL; - port_p->pDeviceFlow = NULL; - port_p->ulMargin = 16; - port_p->ulHysteresis = 8; - port_p->pDeviceParams = (void *) 9600; - port_p->ulCtrlPort1 = conf[b].base + (p * 0x0200); - port_p->ulCtrlPort2 = 0; /* NA */ - port_p->ulDataPort = 0; /* NA */ - port_p->getRegister = xr17d15x_get_register; - port_p->setRegister = xr17d15x_set_register; - port_p->getData = NULL; /* NA */ - port_p->setData = NULL; /* NA */ - port_p->ulClock = EXAR_CLOCK_RATE; - port_p->ulIntVector = conf[b].irq; - - port_p++; - } /* end ports */ - } /* end boards */ - - /* - * Register the devices - */ - if ( boards ) - console_register_devices( ports, total_ports ); - - return RTEMS_SUCCESSFUL; -} |