u32 device;
u32 subvendor;
u32 subdevice;
+ int (*probe)(struct pci_dev *dev);
int (*init)(struct pci_dev *dev);
int (*setup)(struct serial_private *,
const struct pciserial_board *,
int line[0];
};
+static int pci_default_setup(struct serial_private*,
+ const struct pciserial_board*, struct uart_port*, int);
+
static void moan_device(const char *str, struct pci_dev *dev)
{
printk(KERN_WARNING
{ 8, timedia_eight_port }
};
+/*
+ * There are nearly 70 different Timedia/SUNIX PCI serial devices. Instead of
+ * listing them individually, this driver merely grabs them all with
+ * PCI_ANY_ID. Some of these devices, however, also feature a parallel port,
+ * and should be left free to be claimed by parport_serial instead.
+ */
+static int pci_timedia_probe(struct pci_dev *dev)
+{
+ /*
+ * Check the third digit of the subdevice ID
+ * (0,2,3,5,6: serial only -- 7,8,9: serial + parallel)
+ */
+ if ((dev->subsystem_device & 0x00f0) >= 0x70) {
+ dev_info(&dev->dev,
+ "ignoring Timedia subdevice %04x for parport_serial\n",
+ dev->subsystem_device);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
static int pci_timedia_init(struct pci_dev *dev)
{
const unsigned short *ids;
return setup_port(priv, port, bar, offset, board->reg_shift);
}
+static int pci_netmos_9900_setup(struct serial_private *priv,
+ const struct pciserial_board *board,
+ struct uart_port *port, int idx)
+{
+ unsigned int bar;
+
+ if ((priv->dev->subsystem_device & 0xff00) == 0x3000) {
+ /* netmos apparently orders BARs by datasheet layout, so serial
+ * ports get BARs 0 and 3 (or 1 and 4 for memmapped)
+ */
+ bar = 3 * idx;
+
+ return setup_port(priv, port, bar, 0, board->reg_shift);
+ } else {
+ return pci_default_setup(priv, board, port, idx);
+ }
+}
+
+/* the 99xx series comes with a range of device IDs and a variety
+ * of capabilities:
+ *
+ * 9900 has varying capabilities and can cascade to sub-controllers
+ * (cascading should be purely internal)
+ * 9904 is hardwired with 4 serial ports
+ * 9912 and 9922 are hardwired with 2 serial ports
+ */
+static int pci_netmos_9900_numports(struct pci_dev *dev)
+{
+ unsigned int c = dev->class;
+ unsigned int pi;
+ unsigned short sub_serports;
+
+ pi = (c & 0xff);
+
+ if (pi == 2) {
+ return 1;
+ } else if ((pi == 0) &&
+ (dev->device == PCI_DEVICE_ID_NETMOS_9900)) {
+ /* two possibilities: 0x30ps encodes number of parallel and
+ * serial ports, or 0x1000 indicates *something*. This is not
+ * immediately obvious, since the 2s1p+4s configuration seems
+ * to offer all functionality on functions 0..2, while still
+ * advertising the same function 3 as the 4s+2s1p config.
+ */
+ sub_serports = dev->subsystem_device & 0xf;
+ if (sub_serports > 0) {
+ return sub_serports;
+ } else {
+ printk(KERN_NOTICE "NetMos/Mostech serial driver ignoring port on ambiguous config.\n");
+ return 0;
+ }
+ }
+
+ moan_device("unknown NetMos/Mostech program interface", dev);
+ return 0;
+}
static int pci_netmos_init(struct pci_dev *dev)
{
if ((dev->device == PCI_DEVICE_ID_NETMOS_9901) ||
(dev->device == PCI_DEVICE_ID_NETMOS_9865))
return 0;
+
if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
dev->subsystem_device == 0x0299)
return 0;
+ switch (dev->device) { /* FALLTHROUGH on all */
+ case PCI_DEVICE_ID_NETMOS_9904:
+ case PCI_DEVICE_ID_NETMOS_9912:
+ case PCI_DEVICE_ID_NETMOS_9922:
+ case PCI_DEVICE_ID_NETMOS_9900:
+ num_serial = pci_netmos_9900_numports(dev);
+ break;
+
+ default:
+ if (num_serial == 0 ) {
+ moan_device("unknown NetMos/Mostech device", dev);
+ }
+ }
+
if (num_serial == 0)
return -ENODEV;
+
return num_serial;
}
.device = PCI_DEVICE_ID_TIMEDIA_1889,
.subvendor = PCI_VENDOR_ID_TIMEDIA,
.subdevice = PCI_ANY_ID,
+ .probe = pci_timedia_probe,
.init = pci_timedia_init,
.setup = pci_timedia_setup,
},
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_netmos_init,
- .setup = pci_default_setup,
+ .setup = pci_netmos_9900_setup,
},
/*
* For Oxford Semiconductor Tornado based devices
pbn_ADDIDATA_PCIe_8_3906250,
pbn_ce4100_1_115200,
pbn_omegapci,
+ pbn_NETMOS9900_2s_115200,
};
/*
.base_baud = 115200,
.uart_offset = 0x200,
},
+ [pbn_NETMOS9900_2s_115200] = {
+ .flags = FL_BASE0,
+ .num_ports = 2,
+ .base_baud = 115200,
+ },
};
static const struct pci_device_id softmodem_blacklist[] = {
static int __devinit
pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
{
+ struct pci_serial_quirk *quirk;
struct serial_private *priv;
const struct pciserial_board *board;
struct pciserial_board tmp;
int rc;
+ quirk = find_quirk(dev);
+ if (quirk->probe) {
+ rc = quirk->probe(dev);
+ if (rc)
+ return rc;
+ }
+
if (ent->driver_data >= ARRAY_SIZE(pci_boards)) {
printk(KERN_ERR "pci_init_one: invalid driver_data: %ld\n",
ent->driver_data);
board = &pci_boards[ent->driver_data];
rc = pci_enable_device(dev);
+ pci_save_state(dev);
if (rc)
return rc;
0xA000, 0x1000,
0, 0, pbn_b0_1_115200 },
+ /* the 9901 is a rebranded 9912 */
+ { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9912,
+ 0xA000, 0x1000,
+ 0, 0, pbn_b0_1_115200 },
+
+ { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9922,
+ 0xA000, 0x1000,
+ 0, 0, pbn_b0_1_115200 },
+
+ { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9904,
+ 0xA000, 0x1000,
+ 0, 0, pbn_b0_1_115200 },
+
+ { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
+ 0xA000, 0x1000,
+ 0, 0, pbn_b0_1_115200 },
+
+ { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
+ 0xA000, 0x3002,
+ 0, 0, pbn_NETMOS9900_2s_115200 },
+
/*
* Best Connectivity PCI Multi I/O cards
*/
{ 0, }
};
+static pci_ers_result_t serial8250_io_error_detected(struct pci_dev *dev,
+ pci_channel_state_t state)
+{
+ struct serial_private *priv = pci_get_drvdata(dev);
+
+ if (state == pci_channel_io_perm_failure)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ if (priv)
+ pciserial_suspend_ports(priv);
+
+ pci_disable_device(dev);
+
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t serial8250_io_slot_reset(struct pci_dev *dev)
+{
+ int rc;
+
+ rc = pci_enable_device(dev);
+
+ if (rc)
+ return PCI_ERS_RESULT_DISCONNECT;
+
+ pci_restore_state(dev);
+ pci_save_state(dev);
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+static void serial8250_io_resume(struct pci_dev *dev)
+{
+ struct serial_private *priv = pci_get_drvdata(dev);
+
+ if (priv)
+ pciserial_resume_ports(priv);
+}
+
+static struct pci_error_handlers serial8250_err_handler = {
+ .error_detected = serial8250_io_error_detected,
+ .slot_reset = serial8250_io_slot_reset,
+ .resume = serial8250_io_resume,
+};
+
static struct pci_driver serial_pci_driver = {
.name = "serial",
.probe = pciserial_init_one,
.resume = pciserial_resume_one,
#endif
.id_table = serial_pci_tbl,
+ .err_handler = &serial8250_err_handler,
};
static int __init serial8250_pci_init(void)
projects / deliverable / linux.git / blobdiff