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linux-sg2042/drivers/tty/serial/8250/8250_exar.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Probe module for 8250/16550-type Exar chips PCI serial ports.
*
* Based on drivers/tty/serial/8250/8250_pci.c,
*
* Copyright (C) 2017 Sudip Mukherjee, All Rights Reserved.
*/
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/property.h>
#include <linux/serial_core.h>
#include <linux/serial_reg.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/tty.h>
#include <linux/8250_pci.h>
#include <linux/delay.h>
#include <asm/byteorder.h>
#include "8250.h"
#define PCI_DEVICE_ID_COMMTECH_4224PCI335 0x0002
#define PCI_DEVICE_ID_COMMTECH_4222PCI335 0x0004
#define PCI_DEVICE_ID_COMMTECH_2324PCI335 0x000a
#define PCI_DEVICE_ID_COMMTECH_2328PCI335 0x000b
#define PCI_DEVICE_ID_COMMTECH_4224PCIE 0x0020
#define PCI_DEVICE_ID_COMMTECH_4228PCIE 0x0021
#define PCI_DEVICE_ID_COMMTECH_4222PCIE 0x0022
#define PCI_DEVICE_ID_EXAR_XR17V4358 0x4358
#define PCI_DEVICE_ID_EXAR_XR17V8358 0x8358
#define UART_EXAR_INT0 0x80
#define UART_EXAR_8XMODE 0x88 /* 8X sampling rate select */
#define UART_EXAR_SLEEP 0x8b /* Sleep mode */
#define UART_EXAR_DVID 0x8d /* Device identification */
#define UART_EXAR_FCTR 0x08 /* Feature Control Register */
#define UART_FCTR_EXAR_IRDA 0x10 /* IrDa data encode select */
#define UART_FCTR_EXAR_485 0x20 /* Auto 485 half duplex dir ctl */
#define UART_FCTR_EXAR_TRGA 0x00 /* FIFO trigger table A */
#define UART_FCTR_EXAR_TRGB 0x60 /* FIFO trigger table B */
#define UART_FCTR_EXAR_TRGC 0x80 /* FIFO trigger table C */
#define UART_FCTR_EXAR_TRGD 0xc0 /* FIFO trigger table D programmable */
#define UART_EXAR_TXTRG 0x0a /* Tx FIFO trigger level write-only */
#define UART_EXAR_RXTRG 0x0b /* Rx FIFO trigger level write-only */
#define UART_EXAR_MPIOINT_7_0 0x8f /* MPIOINT[7:0] */
#define UART_EXAR_MPIOLVL_7_0 0x90 /* MPIOLVL[7:0] */
#define UART_EXAR_MPIO3T_7_0 0x91 /* MPIO3T[7:0] */
#define UART_EXAR_MPIOINV_7_0 0x92 /* MPIOINV[7:0] */
#define UART_EXAR_MPIOSEL_7_0 0x93 /* MPIOSEL[7:0] */
#define UART_EXAR_MPIOOD_7_0 0x94 /* MPIOOD[7:0] */
#define UART_EXAR_MPIOINT_15_8 0x95 /* MPIOINT[15:8] */
#define UART_EXAR_MPIOLVL_15_8 0x96 /* MPIOLVL[15:8] */
#define UART_EXAR_MPIO3T_15_8 0x97 /* MPIO3T[15:8] */
#define UART_EXAR_MPIOINV_15_8 0x98 /* MPIOINV[15:8] */
#define UART_EXAR_MPIOSEL_15_8 0x99 /* MPIOSEL[15:8] */
#define UART_EXAR_MPIOOD_15_8 0x9a /* MPIOOD[15:8] */
#define UART_EXAR_RS485_DLY(x) ((x) << 4)
/*
* IOT2040 MPIO wiring semantics:
*
* MPIO Port Function
* ---- ---- --------
* 0 2 Mode bit 0
* 1 2 Mode bit 1
* 2 2 Terminate bus
* 3 - <reserved>
* 4 3 Mode bit 0
* 5 3 Mode bit 1
* 6 3 Terminate bus
* 7 - <reserved>
* 8 2 Enable
* 9 3 Enable
* 10 - Red LED
* 11..15 - <unused>
*/
/* IOT2040 MPIOs 0..7 */
#define IOT2040_UART_MODE_RS232 0x01
#define IOT2040_UART_MODE_RS485 0x02
#define IOT2040_UART_MODE_RS422 0x03
#define IOT2040_UART_TERMINATE_BUS 0x04
#define IOT2040_UART1_MASK 0x0f
#define IOT2040_UART2_SHIFT 4
#define IOT2040_UARTS_DEFAULT_MODE 0x11 /* both RS232 */
#define IOT2040_UARTS_GPIO_LO_MODE 0x88 /* reserved pins as input */
/* IOT2040 MPIOs 8..15 */
#define IOT2040_UARTS_ENABLE 0x03
#define IOT2040_UARTS_GPIO_HI_MODE 0xF8 /* enable & LED as outputs */
struct exar8250;
struct exar8250_platform {
int (*rs485_config)(struct uart_port *, struct serial_rs485 *);
int (*register_gpio)(struct pci_dev *, struct uart_8250_port *);
};
/**
* struct exar8250_board - board information
* @num_ports: number of serial ports
* @reg_shift: describes UART register mapping in PCI memory
* @setup: quirk run at ->probe() stage
* @exit: quirk run at ->remove() stage
*/
struct exar8250_board {
unsigned int num_ports;
unsigned int reg_shift;
int (*setup)(struct exar8250 *, struct pci_dev *,
struct uart_8250_port *, int);
void (*exit)(struct pci_dev *pcidev);
};
struct exar8250 {
unsigned int nr;
struct exar8250_board *board;
void __iomem *virt;
int line[0];
};
static void exar_pm(struct uart_port *port, unsigned int state, unsigned int old)
{
/*
* Exar UARTs have a SLEEP register that enables or disables each UART
* to enter sleep mode separately. On the XR17V35x the register
* is accessible to each UART at the UART_EXAR_SLEEP offset, but
* the UART channel may only write to the corresponding bit.
*/
serial_port_out(port, UART_EXAR_SLEEP, state ? 0xff : 0);
}
/*
* XR17V35x UARTs have an extra fractional divisor register (DLD)
* Calculate divisor with extra 4-bit fractional portion
*/
static unsigned int xr17v35x_get_divisor(struct uart_port *p, unsigned int baud,
unsigned int *frac)
{
unsigned int quot_16;
quot_16 = DIV_ROUND_CLOSEST(p->uartclk, baud);
*frac = quot_16 & 0x0f;
return quot_16 >> 4;
}
static void xr17v35x_set_divisor(struct uart_port *p, unsigned int baud,
unsigned int quot, unsigned int quot_frac)
{
serial8250_do_set_divisor(p, baud, quot, quot_frac);
/* Preserve bits not related to baudrate; DLD[7:4]. */
quot_frac |= serial_port_in(p, 0x2) & 0xf0;
serial_port_out(p, 0x2, quot_frac);
}
static void exar_shutdown(struct uart_port *port)
{
unsigned char lsr;
bool tx_complete = 0;
struct uart_8250_port *up = up_to_u8250p(port);
struct circ_buf *xmit = &port->state->xmit;
int i = 0;
do {
lsr = serial_in(up, UART_LSR);
if (lsr & (UART_LSR_TEMT | UART_LSR_THRE))
tx_complete = 1;
else
tx_complete = 0;
usleep_range(1000, 1100);
} while (!uart_circ_empty(xmit) && !tx_complete && i++ < 1000);
serial8250_do_shutdown(port);
}
static int default_setup(struct exar8250 *priv, struct pci_dev *pcidev,
int idx, unsigned int offset,
struct uart_8250_port *port)
{
const struct exar8250_board *board = priv->board;
unsigned int bar = 0;
unsigned char status;
port->port.iotype = UPIO_MEM;
port->port.mapbase = pci_resource_start(pcidev, bar) + offset;
port->port.membase = priv->virt + offset;
port->port.regshift = board->reg_shift;
/*
* XR17V35x UARTs have an extra divisor register, DLD that gets enabled
* with when DLAB is set which will cause the device to incorrectly match
* and assign port type to PORT_16650. The EFR for this UART is found
* at offset 0x09. Instead check the Deice ID (DVID) register
* for a 2, 4 or 8 port UART.
*/
status = readb(port->port.membase + UART_EXAR_DVID);
if (status == 0x82 || status == 0x84 || status == 0x88) {
port->port.type = PORT_XR17V35X;
port->port.get_divisor = xr17v35x_get_divisor;
port->port.set_divisor = xr17v35x_set_divisor;
} else {
port->port.type = PORT_XR17D15X;
}
port->port.pm = exar_pm;
port->port.shutdown = exar_shutdown;
return 0;
}
static int
pci_fastcom335_setup(struct exar8250 *priv, struct pci_dev *pcidev,
struct uart_8250_port *port, int idx)
{
unsigned int offset = idx * 0x200;
unsigned int baud = 1843200;
u8 __iomem *p;
int err;
port->port.uartclk = baud * 16;
err = default_setup(priv, pcidev, idx, offset, port);
if (err)
return err;
p = port->port.membase;
writeb(0x00, p + UART_EXAR_8XMODE);
writeb(UART_FCTR_EXAR_TRGD, p + UART_EXAR_FCTR);
writeb(32, p + UART_EXAR_TXTRG);
writeb(32, p + UART_EXAR_RXTRG);
/*
* Setup Multipurpose Input/Output pins.
*/
if (idx == 0) {
switch (pcidev->device) {
case PCI_DEVICE_ID_COMMTECH_4222PCI335:
case PCI_DEVICE_ID_COMMTECH_4224PCI335:
writeb(0x78, p + UART_EXAR_MPIOLVL_7_0);
writeb(0x00, p + UART_EXAR_MPIOINV_7_0);
writeb(0x00, p + UART_EXAR_MPIOSEL_7_0);
break;
case PCI_DEVICE_ID_COMMTECH_2324PCI335:
case PCI_DEVICE_ID_COMMTECH_2328PCI335:
writeb(0x00, p + UART_EXAR_MPIOLVL_7_0);
writeb(0xc0, p + UART_EXAR_MPIOINV_7_0);
writeb(0xc0, p + UART_EXAR_MPIOSEL_7_0);
break;
}
writeb(0x00, p + UART_EXAR_MPIOINT_7_0);
writeb(0x00, p + UART_EXAR_MPIO3T_7_0);
writeb(0x00, p + UART_EXAR_MPIOOD_7_0);
}
return 0;
}
static int
pci_connect_tech_setup(struct exar8250 *priv, struct pci_dev *pcidev,
struct uart_8250_port *port, int idx)
{
unsigned int offset = idx * 0x200;
unsigned int baud = 1843200;
port->port.uartclk = baud * 16;
return default_setup(priv, pcidev, idx, offset, port);
}
static int
pci_xr17c154_setup(struct exar8250 *priv, struct pci_dev *pcidev,
struct uart_8250_port *port, int idx)
{
unsigned int offset = idx * 0x200;
unsigned int baud = 921600;
port->port.uartclk = baud * 16;
return default_setup(priv, pcidev, idx, offset, port);
}
static void setup_gpio(struct pci_dev *pcidev, u8 __iomem *p)
{
/*
* The Commtech adapters required the MPIOs to be driven low. The Exar
* devices will export them as GPIOs, so we pre-configure them safely
* as inputs.
*/
u8 dir = pcidev->vendor == PCI_VENDOR_ID_EXAR ? 0xff : 0x00;
writeb(0x00, p + UART_EXAR_MPIOINT_7_0);
writeb(0x00, p + UART_EXAR_MPIOLVL_7_0);
writeb(0x00, p + UART_EXAR_MPIO3T_7_0);
writeb(0x00, p + UART_EXAR_MPIOINV_7_0);
writeb(dir, p + UART_EXAR_MPIOSEL_7_0);
writeb(0x00, p + UART_EXAR_MPIOOD_7_0);
writeb(0x00, p + UART_EXAR_MPIOINT_15_8);
writeb(0x00, p + UART_EXAR_MPIOLVL_15_8);
writeb(0x00, p + UART_EXAR_MPIO3T_15_8);
writeb(0x00, p + UART_EXAR_MPIOINV_15_8);
writeb(dir, p + UART_EXAR_MPIOSEL_15_8);
writeb(0x00, p + UART_EXAR_MPIOOD_15_8);
}
static void *
__xr17v35x_register_gpio(struct pci_dev *pcidev,
const struct property_entry *properties)
{
struct platform_device *pdev;
pdev = platform_device_alloc("gpio_exar", PLATFORM_DEVID_AUTO);
if (!pdev)
return NULL;
pdev->dev.parent = &pcidev->dev;
ACPI_COMPANION_SET(&pdev->dev, ACPI_COMPANION(&pcidev->dev));
if (platform_device_add_properties(pdev, properties) < 0 ||
platform_device_add(pdev) < 0) {
platform_device_put(pdev);
return NULL;
}
return pdev;
}
static const struct property_entry exar_gpio_properties[] = {
PROPERTY_ENTRY_U32("exar,first-pin", 0),
PROPERTY_ENTRY_U32("ngpios", 16),
{ }
};
static int xr17v35x_register_gpio(struct pci_dev *pcidev,
struct uart_8250_port *port)
{
if (pcidev->vendor == PCI_VENDOR_ID_EXAR)
port->port.private_data =
__xr17v35x_register_gpio(pcidev, exar_gpio_properties);
return 0;
}
static int generic_rs485_config(struct uart_port *port,
struct serial_rs485 *rs485)
{
bool is_rs485 = !!(rs485->flags & SER_RS485_ENABLED);
u8 __iomem *p = port->membase;
u8 value;
value = readb(p + UART_EXAR_FCTR);
if (is_rs485)
value |= UART_FCTR_EXAR_485;
else
value &= ~UART_FCTR_EXAR_485;
writeb(value, p + UART_EXAR_FCTR);
if (is_rs485)
writeb(UART_EXAR_RS485_DLY(4), p + UART_MSR);
port->rs485 = *rs485;
return 0;
}
static const struct exar8250_platform exar8250_default_platform = {
.register_gpio = xr17v35x_register_gpio,
.rs485_config = generic_rs485_config,
};
static int iot2040_rs485_config(struct uart_port *port,
struct serial_rs485 *rs485)
{
bool is_rs485 = !!(rs485->flags & SER_RS485_ENABLED);
u8 __iomem *p = port->membase;
u8 mask = IOT2040_UART1_MASK;
u8 mode, value;
if (is_rs485) {
if (rs485->flags & SER_RS485_RX_DURING_TX)
mode = IOT2040_UART_MODE_RS422;
else
mode = IOT2040_UART_MODE_RS485;
if (rs485->flags & SER_RS485_TERMINATE_BUS)
mode |= IOT2040_UART_TERMINATE_BUS;
} else {
mode = IOT2040_UART_MODE_RS232;
}
if (port->line == 3) {
mask <<= IOT2040_UART2_SHIFT;
mode <<= IOT2040_UART2_SHIFT;
}
value = readb(p + UART_EXAR_MPIOLVL_7_0);
value &= ~mask;
value |= mode;
writeb(value, p + UART_EXAR_MPIOLVL_7_0);
return generic_rs485_config(port, rs485);
}
static const struct property_entry iot2040_gpio_properties[] = {
PROPERTY_ENTRY_U32("exar,first-pin", 10),
PROPERTY_ENTRY_U32("ngpios", 1),
{ }
};
static int iot2040_register_gpio(struct pci_dev *pcidev,
struct uart_8250_port *port)
{
u8 __iomem *p = port->port.membase;
writeb(IOT2040_UARTS_DEFAULT_MODE, p + UART_EXAR_MPIOLVL_7_0);
writeb(IOT2040_UARTS_GPIO_LO_MODE, p + UART_EXAR_MPIOSEL_7_0);
writeb(IOT2040_UARTS_ENABLE, p + UART_EXAR_MPIOLVL_15_8);
writeb(IOT2040_UARTS_GPIO_HI_MODE, p + UART_EXAR_MPIOSEL_15_8);
port->port.private_data =
__xr17v35x_register_gpio(pcidev, iot2040_gpio_properties);
return 0;
}
static const struct exar8250_platform iot2040_platform = {
.rs485_config = iot2040_rs485_config,
.register_gpio = iot2040_register_gpio,
};
/*
* For SIMATIC IOT2000, only IOT2040 and its variants have the Exar device,
* IOT2020 doesn't have. Therefore it is sufficient to match on the common
* board name after the device was found.
*/
static const struct dmi_system_id exar_platforms[] = {
{
.matches = {
DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"),
},
.driver_data = (void *)&iot2040_platform,
},
{}
};
static int
pci_xr17v35x_setup(struct exar8250 *priv, struct pci_dev *pcidev,
struct uart_8250_port *port, int idx)
{
const struct exar8250_platform *platform;
const struct dmi_system_id *dmi_match;
unsigned int offset = idx * 0x400;
unsigned int baud = 7812500;
u8 __iomem *p;
int ret;
dmi_match = dmi_first_match(exar_platforms);
if (dmi_match)
platform = dmi_match->driver_data;
else
platform = &exar8250_default_platform;
port->port.uartclk = baud * 16;
port->port.rs485_config = platform->rs485_config;
/*
* Setup the UART clock for the devices on expansion slot to
* half the clock speed of the main chip (which is 125MHz)
*/
if (idx >= 8)
port->port.uartclk /= 2;
ret = default_setup(priv, pcidev, idx, offset, port);
if (ret)
return ret;
p = port->port.membase;
writeb(0x00, p + UART_EXAR_8XMODE);
writeb(UART_FCTR_EXAR_TRGD, p + UART_EXAR_FCTR);
writeb(128, p + UART_EXAR_TXTRG);
writeb(128, p + UART_EXAR_RXTRG);
if (idx == 0) {
/* Setup Multipurpose Input/Output pins. */
setup_gpio(pcidev, p);
ret = platform->register_gpio(pcidev, port);
}
return ret;
}
static void pci_xr17v35x_exit(struct pci_dev *pcidev)
{
struct exar8250 *priv = pci_get_drvdata(pcidev);
struct uart_8250_port *port = serial8250_get_port(priv->line[0]);
struct platform_device *pdev = port->port.private_data;
platform_device_unregister(pdev);
port->port.private_data = NULL;
}
static inline void exar_misc_clear(struct exar8250 *priv)
{
/* Clear all PCI interrupts by reading INT0. No effect on IIR */
readb(priv->virt + UART_EXAR_INT0);
/* Clear INT0 for Expansion Interface slave ports, too */
if (priv->board->num_ports > 8)
readb(priv->virt + 0x2000 + UART_EXAR_INT0);
}
/*
* These Exar UARTs have an extra interrupt indicator that could fire for a
* few interrupts that are not presented/cleared through IIR. One of which is
* a wakeup interrupt when coming out of sleep. These interrupts are only
* cleared by reading global INT0 or INT1 registers as interrupts are
* associated with channel 0. The INT[3:0] registers _are_ accessible from each
* channel's address space, but for the sake of bus efficiency we register a
* dedicated handler at the PCI device level to handle them.
*/
static irqreturn_t exar_misc_handler(int irq, void *data)
{
exar_misc_clear(data);
return IRQ_HANDLED;
}
static int
exar_pci_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
{
unsigned int nr_ports, i, bar = 0, maxnr;
struct exar8250_board *board;
struct uart_8250_port uart;
struct exar8250 *priv;
int rc;
board = (struct exar8250_board *)ent->driver_data;
if (!board)
return -EINVAL;
rc = pcim_enable_device(pcidev);
if (rc)
return rc;
maxnr = pci_resource_len(pcidev, bar) >> (board->reg_shift + 3);
nr_ports = board->num_ports ? board->num_ports : pcidev->device & 0x0f;
priv = devm_kzalloc(&pcidev->dev, struct_size(priv, line, nr_ports), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->board = board;
priv->virt = pcim_iomap(pcidev, bar, 0);
if (!priv->virt)
return -ENOMEM;
pci_set_master(pcidev);
rc = pci_alloc_irq_vectors(pcidev, 1, 1, PCI_IRQ_ALL_TYPES);
if (rc < 0)
return rc;
memset(&uart, 0, sizeof(uart));
uart.port.flags = UPF_SHARE_IRQ | UPF_EXAR_EFR | UPF_FIXED_TYPE | UPF_FIXED_PORT;
uart.port.irq = pci_irq_vector(pcidev, 0);
uart.port.dev = &pcidev->dev;
rc = devm_request_irq(&pcidev->dev, uart.port.irq, exar_misc_handler,
IRQF_SHARED, "exar_uart", priv);
if (rc)
return rc;
/* Clear interrupts */
exar_misc_clear(priv);
for (i = 0; i < nr_ports && i < maxnr; i++) {
rc = board->setup(priv, pcidev, &uart, i);
if (rc) {
dev_err(&pcidev->dev, "Failed to setup port %u\n", i);
break;
}
dev_dbg(&pcidev->dev, "Setup PCI port: port %lx, irq %d, type %d\n",
uart.port.iobase, uart.port.irq, uart.port.iotype);
priv->line[i] = serial8250_register_8250_port(&uart);
if (priv->line[i] < 0) {
dev_err(&pcidev->dev,
"Couldn't register serial port %lx, irq %d, type %d, error %d\n",
uart.port.iobase, uart.port.irq,
uart.port.iotype, priv->line[i]);
break;
}
}
priv->nr = i;
pci_set_drvdata(pcidev, priv);
return 0;
}
static void exar_pci_remove(struct pci_dev *pcidev)
{
struct exar8250 *priv = pci_get_drvdata(pcidev);
unsigned int i;
for (i = 0; i < priv->nr; i++)
serial8250_unregister_port(priv->line[i]);
if (priv->board->exit)
priv->board->exit(pcidev);
}
static int __maybe_unused exar_suspend(struct device *dev)
{
struct pci_dev *pcidev = to_pci_dev(dev);
struct exar8250 *priv = pci_get_drvdata(pcidev);
unsigned int i;
for (i = 0; i < priv->nr; i++)
if (priv->line[i] >= 0)
serial8250_suspend_port(priv->line[i]);
/* Ensure that every init quirk is properly torn down */
if (priv->board->exit)
priv->board->exit(pcidev);
return 0;
}
static int __maybe_unused exar_resume(struct device *dev)
{
struct exar8250 *priv = dev_get_drvdata(dev);
unsigned int i;
exar_misc_clear(priv);
for (i = 0; i < priv->nr; i++)
if (priv->line[i] >= 0)
serial8250_resume_port(priv->line[i]);
return 0;
}
static SIMPLE_DEV_PM_OPS(exar_pci_pm, exar_suspend, exar_resume);
static const struct exar8250_board pbn_fastcom335_2 = {
.num_ports = 2,
.setup = pci_fastcom335_setup,
};
static const struct exar8250_board pbn_fastcom335_4 = {
.num_ports = 4,
.setup = pci_fastcom335_setup,
};
static const struct exar8250_board pbn_fastcom335_8 = {
.num_ports = 8,
.setup = pci_fastcom335_setup,
};
static const struct exar8250_board pbn_connect = {
.setup = pci_connect_tech_setup,
};
static const struct exar8250_board pbn_exar_ibm_saturn = {
.num_ports = 1,
.setup = pci_xr17c154_setup,
};
static const struct exar8250_board pbn_exar_XR17C15x = {
.setup = pci_xr17c154_setup,
};
static const struct exar8250_board pbn_exar_XR17V35x = {
.setup = pci_xr17v35x_setup,
.exit = pci_xr17v35x_exit,
};
static const struct exar8250_board pbn_exar_XR17V4358 = {
.num_ports = 12,
.setup = pci_xr17v35x_setup,
.exit = pci_xr17v35x_exit,
};
static const struct exar8250_board pbn_exar_XR17V8358 = {
.num_ports = 16,
.setup = pci_xr17v35x_setup,
.exit = pci_xr17v35x_exit,
};
#define CONNECT_DEVICE(devid, sdevid, bd) { \
PCI_DEVICE_SUB( \
PCI_VENDOR_ID_EXAR, \
PCI_DEVICE_ID_EXAR_##devid, \
PCI_SUBVENDOR_ID_CONNECT_TECH, \
PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_##sdevid), 0, 0, \
(kernel_ulong_t)&bd \
}
#define EXAR_DEVICE(vend, devid, bd) { \
PCI_VDEVICE(vend, PCI_DEVICE_ID_##devid), (kernel_ulong_t)&bd \
}
#define IBM_DEVICE(devid, sdevid, bd) { \
PCI_DEVICE_SUB( \
PCI_VENDOR_ID_EXAR, \
PCI_DEVICE_ID_EXAR_##devid, \
PCI_VENDOR_ID_IBM, \
PCI_SUBDEVICE_ID_IBM_##sdevid), 0, 0, \
(kernel_ulong_t)&bd \
}
static const struct pci_device_id exar_pci_tbl[] = {
CONNECT_DEVICE(XR17C152, UART_2_232, pbn_connect),
CONNECT_DEVICE(XR17C154, UART_4_232, pbn_connect),
CONNECT_DEVICE(XR17C158, UART_8_232, pbn_connect),
CONNECT_DEVICE(XR17C152, UART_1_1, pbn_connect),
CONNECT_DEVICE(XR17C154, UART_2_2, pbn_connect),
CONNECT_DEVICE(XR17C158, UART_4_4, pbn_connect),
CONNECT_DEVICE(XR17C152, UART_2, pbn_connect),
CONNECT_DEVICE(XR17C154, UART_4, pbn_connect),
CONNECT_DEVICE(XR17C158, UART_8, pbn_connect),
CONNECT_DEVICE(XR17C152, UART_2_485, pbn_connect),
CONNECT_DEVICE(XR17C154, UART_4_485, pbn_connect),
CONNECT_DEVICE(XR17C158, UART_8_485, pbn_connect),
IBM_DEVICE(XR17C152, SATURN_SERIAL_ONE_PORT, pbn_exar_ibm_saturn),
/* Exar Corp. XR17C15[248] Dual/Quad/Octal UART */
EXAR_DEVICE(EXAR, EXAR_XR17C152, pbn_exar_XR17C15x),
EXAR_DEVICE(EXAR, EXAR_XR17C154, pbn_exar_XR17C15x),
EXAR_DEVICE(EXAR, EXAR_XR17C158, pbn_exar_XR17C15x),
/* Exar Corp. XR17V[48]35[248] Dual/Quad/Octal/Hexa PCIe UARTs */
EXAR_DEVICE(EXAR, EXAR_XR17V352, pbn_exar_XR17V35x),
EXAR_DEVICE(EXAR, EXAR_XR17V354, pbn_exar_XR17V35x),
EXAR_DEVICE(EXAR, EXAR_XR17V358, pbn_exar_XR17V35x),
EXAR_DEVICE(EXAR, EXAR_XR17V4358, pbn_exar_XR17V4358),
EXAR_DEVICE(EXAR, EXAR_XR17V8358, pbn_exar_XR17V8358),
EXAR_DEVICE(COMMTECH, COMMTECH_4222PCIE, pbn_exar_XR17V35x),
EXAR_DEVICE(COMMTECH, COMMTECH_4224PCIE, pbn_exar_XR17V35x),
EXAR_DEVICE(COMMTECH, COMMTECH_4228PCIE, pbn_exar_XR17V35x),
EXAR_DEVICE(COMMTECH, COMMTECH_4222PCI335, pbn_fastcom335_2),
EXAR_DEVICE(COMMTECH, COMMTECH_4224PCI335, pbn_fastcom335_4),
EXAR_DEVICE(COMMTECH, COMMTECH_2324PCI335, pbn_fastcom335_4),
EXAR_DEVICE(COMMTECH, COMMTECH_2328PCI335, pbn_fastcom335_8),
{ 0, }
};
MODULE_DEVICE_TABLE(pci, exar_pci_tbl);
static struct pci_driver exar_pci_driver = {
.name = "exar_serial",
.probe = exar_pci_probe,
.remove = exar_pci_remove,
.driver = {
.pm = &exar_pci_pm,
},
.id_table = exar_pci_tbl,
};
module_pci_driver(exar_pci_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Exar Serial Driver");
MODULE_AUTHOR("Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>");
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