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Differential D32229 Diff 96024 sys/dev/uart/uart_bus_pci.c

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sys/dev/uart/uart_bus_pci.c

Show First 20 Lines • Show All 69 Lines • ▼ Show 20 Linesstruct pci_id {
uint16_t subven; uint16_t subven;
uint16_t subdev; uint16_t subdev;
const char *desc; const char *desc;
int rid; int rid;
int rclk; int rclk;
int regshft; int regshft;
}; };
#define PCI_NO_MSI 0x40000000
#define PCI_RID_MASK 0x0000ffff
static const struct pci_id pci_ns8250_ids[] = { static const struct pci_id pci_ns8250_ids[] = {
{ 0x1028, 0x0008, 0xffff, 0, "Dell Remote Access Card III", 0x14, { 0x1028, 0x0008, 0xffff, 0, "Dell Remote Access Card III", 0x14,
128 * DEFAULT_RCLK }, 128 * DEFAULT_RCLK },
{ 0x1028, 0x0012, 0xffff, 0, "Dell RAC 4 Daughter Card Virtual UART", 0x14, { 0x1028, 0x0012, 0xffff, 0, "Dell RAC 4 Daughter Card Virtual UART", 0x14,
128 * DEFAULT_RCLK }, 128 * DEFAULT_RCLK },
{ 0x1033, 0x0074, 0x1033, 0x8014, "NEC RCV56ACF 56k Voice Modem", 0x10 }, { 0x1033, 0x0074, 0x1033, 0x8014, "NEC RCV56ACF 56k Voice Modem", 0x10 },
{ 0x1033, 0x007d, 0x1033, 0x8012, "NEC RS232C", 0x10 }, { 0x1033, 0x007d, 0x1033, 0x8012, "NEC RS232C", 0x10 },
{ 0x103c, 0x1048, 0x103c, 0x1227, "HP Diva Serial [GSP] UART - Powerbar SP2", { 0x103c, 0x1048, 0x103c, 0x1227, "HP Diva Serial [GSP] UART - Powerbar SP2",
▲ Show 20 Lines • Show All 80 Lines • ▼ Show 20 Lines
{ 0x8086, 0x8811, 0xffff, 0, "Intel EG20T Serial Port 0", 0x10 }, { 0x8086, 0x8811, 0xffff, 0, "Intel EG20T Serial Port 0", 0x10 },
{ 0x8086, 0x8812, 0xffff, 0, "Intel EG20T Serial Port 1", 0x10 }, { 0x8086, 0x8812, 0xffff, 0, "Intel EG20T Serial Port 1", 0x10 },
{ 0x8086, 0x8813, 0xffff, 0, "Intel EG20T Serial Port 2", 0x10 }, { 0x8086, 0x8813, 0xffff, 0, "Intel EG20T Serial Port 2", 0x10 },
{ 0x8086, 0x8814, 0xffff, 0, "Intel EG20T Serial Port 3", 0x10 }, { 0x8086, 0x8814, 0xffff, 0, "Intel EG20T Serial Port 3", 0x10 },
{ 0x8086, 0x8c3d, 0xffff, 0, "Intel Lynx Point KT Controller", 0x10 }, { 0x8086, 0x8c3d, 0xffff, 0, "Intel Lynx Point KT Controller", 0x10 },
{ 0x8086, 0x8cbd, 0xffff, 0, "Intel Wildcat Point KT Controller", 0x10 }, { 0x8086, 0x8cbd, 0xffff, 0, "Intel Wildcat Point KT Controller", 0x10 },
{ 0x8086, 0x9c3d, 0xffff, 0, "Intel Lynx Point-LP HECI KT", 0x10 }, { 0x8086, 0x9c3d, 0xffff, 0, "Intel Lynx Point-LP HECI KT", 0x10 },
{ 0x8086, 0xa13d, 0xffff, 0, { 0x8086, 0xa13d, 0xffff, 0,
"100 Series/C230 Series Chipset Family KT Redirection", 0x10 }, "100 Series/C230 Series Chipset Family KT Redirection",
0x10 | PCI_NO_MSI },
{ 0x9710, 0x9820, 0x1000, 1, "NetMos NM9820 Serial Port", 0x10 }, { 0x9710, 0x9820, 0x1000, 1, "NetMos NM9820 Serial Port", 0x10 },
{ 0x9710, 0x9835, 0x1000, 1, "NetMos NM9835 Serial Port", 0x10 }, { 0x9710, 0x9835, 0x1000, 1, "NetMos NM9835 Serial Port", 0x10 },
{ 0x9710, 0x9865, 0xa000, 0x1000, "NetMos NM9865 Serial Port", 0x10 }, { 0x9710, 0x9865, 0xa000, 0x1000, "NetMos NM9865 Serial Port", 0x10 },
{ 0x9710, 0x9900, 0xa000, 0x1000, { 0x9710, 0x9900, 0xa000, 0x1000,
"MosChip MCS9900 PCIe to Peripheral Controller", 0x10 }, "MosChip MCS9900 PCIe to Peripheral Controller", 0x10 },
{ 0x9710, 0x9901, 0xa000, 0x1000, { 0x9710, 0x9901, 0xa000, 0x1000,
"MosChip MCS9901 PCIe to Peripheral Controller", 0x10 }, "MosChip MCS9901 PCIe to Peripheral Controller", 0x10 },
{ 0x9710, 0x9904, 0xa000, 0x1000, { 0x9710, 0x9904, 0xa000, 0x1000,
Show All 39 Linesuart_pci_probe(device_t dev)
if (id != NULL) { if (id != NULL) {
sc->sc_class = &uart_ns8250_class; sc->sc_class = &uart_ns8250_class;
goto match; goto match;
} }
/* Add checks for non-ns8250 IDs here. */ /* Add checks for non-ns8250 IDs here. */
return (ENXIO); return (ENXIO);
match: match:
result = uart_bus_probe(dev, id->regshft, 0, id->rclk, id->rid, 0, 0); result = uart_bus_probe(dev, id->regshft, 0, id->rclk,
id->rid & PCI_RID_MASK, 0, 0);
/* Bail out on error. */ /* Bail out on error. */
if (result > 0) if (result > 0)
return (result); return (result);
/* Set/override the device description. */ /* Set/override the device description. */
if (id->desc) if (id->desc)
device_set_desc(dev, id->desc); device_set_desc(dev, id->desc);
return (result); return (result);
} }
static int static int
uart_pci_attach(device_t dev) uart_pci_attach(device_t dev)
{ {
struct uart_softc *sc; struct uart_softc *sc;
const struct pci_id *id;
int count; int count;
sc = device_get_softc(dev); sc = device_get_softc(dev);
/* /*
* Use MSI in preference to legacy IRQ if available. However, experience * Use MSI in preference to legacy IRQ if available. However, experience
* suggests this is only reliable when one MSI vector is advertised. * suggests this is only reliable when one MSI vector is advertised.
*/ */
if (pci_msi_count(dev) == 1) { id = uart_pci_match(dev, pci_ns8250_ids);
if ((id == NULL || (id->rid & PCI_NO_MSI) == 0) &&
pci_msi_count(dev) == 1) {
count = 1; count = 1;
if (pci_alloc_msi(dev, &count) == 0) { if (pci_alloc_msi(dev, &count) == 0) {
sc->sc_irid = 1; sc->sc_irid = 1;
device_printf(dev, "Using %d MSI message\n", count); device_printf(dev, "Using %d MSI message\n", count);
} }
} }
return (uart_bus_attach(dev)); return (uart_bus_attach(dev));
Show All 16 Lines