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parport_serial: Add support for the WCH353 2S/1P multi-IO card 

To allow parport_serial to handle the card the same PCI ids are blacklisted
in 8250_pci.c using the existing software blacklist mechanism.

The blacklist array is also renamed because it now covers this new use
case.

Since the two serial ports are auto-detected as XScale instead of 16550A
clones, we also add a quirk to 8250_pci.c to skip autodetection and set the
correct port type.

Signed-off-by: Gianluca Anzolin <gianluca@sottospazio.it>
[Fold in fixes for the uart_8250 change]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5bit-waveforms
Guainluca Anzolin 2012-09-04 15:56:12 +01:00 committed by Greg Kroah-Hartman
parent 9303ac158f
commit 6971c635af
2 changed files with 40 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/parport/parport_serial.c
View File

@ -62,6 +62,7 @@ enum parport_pc_pci_cards {
timedia_9079a,
timedia_9079b,
timedia_9079c,
wch_ch353_2s1p,
};
/* each element directly indexed from enum list, above */
@ -145,6 +146,7 @@ static struct parport_pc_pci cards[] __devinitdata = {
/* timedia_9079a */ { 1, { { 2, 3 }, } },
/* timedia_9079b */ { 1, { { 2, 3 }, } },
/* timedia_9079c */ { 1, { { 2, 3 }, } },
/* wch_ch353_2s1p*/ { 1, { { 2, -1}, } },
};
static struct pci_device_id parport_serial_pci_tbl[] = {
@ -243,7 +245,8 @@ static struct pci_device_id parport_serial_pci_tbl[] = {
{ 0x1409, 0x7168, 0x1409, 0xb079, 0, 0, timedia_9079a },
{ 0x1409, 0x7168, 0x1409, 0xc079, 0, 0, timedia_9079b },
{ 0x1409, 0x7168, 0x1409, 0xd079, 0, 0, timedia_9079c },
/* WCH CARDS */
{ 0x4348, 0x7053, 0x4348, 0x3253, 0, 0, wch_ch353_2s1p},
{ 0, } /* terminate list */
};
MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);
@ -460,6 +463,12 @@ static struct pciserial_board pci_parport_serial_boards[] __devinitdata = {
.base_baud = 921600,
.uart_offset = 8,
},
[wch_ch353_2s1p] = {
.flags = FL_BASE0|FL_BASE_BARS,
.num_ports = 2,
.base_baud = 115200,
.uart_offset = 8,
},
};
struct parport_serial_private {

38
drivers/tty/serial/8250/8250_pci.c
View File

@ -1164,6 +1164,16 @@ pci_xr17c154_setup(struct serial_private *priv,
return pci_default_setup(priv, board, port, idx);
}
static int
pci_wch_ch353_setup(struct serial_private *priv,
const struct pciserial_board *board,
struct uart_8250_port *port, int idx)
{
port->port.flags |= UPF_FIXED_TYPE;
port->port.type = PORT_16550A;
return pci_default_setup(priv, board, port, idx);
}
#define PCI_VENDOR_ID_SBSMODULARIO 0x124B
#define PCI_SUBVENDOR_ID_SBSMODULARIO 0x124B
#define PCI_DEVICE_ID_OCTPRO 0x0001
@ -1737,6 +1747,14 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subdevice = PCI_ANY_ID,
.setup = pci_omegapci_setup,
},
/* WCH CH353 2S1P card (16550 clone) */
{
.vendor = 0x4348,
.device = 0x7053,
.subvendor = 0x4348,
.subdevice = 0x3253,
.setup = pci_wch_ch353_setup,
},
/*
* ASIX devices with FIFO bug
*/
@ -2636,10 +2654,14 @@ static struct pciserial_board pci_boards[] __devinitdata = {
},
};
static const struct pci_device_id softmodem_blacklist[] = {
static const struct pci_device_id blacklist[] = {
/* softmodems */
{ PCI_VDEVICE(AL, 0x5457), }, /* ALi Corporation M5457 AC'97 Modem */
{ PCI_VDEVICE(MOTOROLA, 0x3052), }, /* Motorola Si3052-based modem */
{ PCI_DEVICE(0x1543, 0x3052), }, /* Si3052-based modem, default IDs */
/* multi-io cards handled by parport_serial */
{ PCI_DEVICE(0x4348, 0x7053), }, /* WCH CH353 2S1P */
};
/*
@ -2650,7 +2672,7 @@ static const struct pci_device_id softmodem_blacklist[] = {
static int __devinit
serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
{
const struct pci_device_id *blacklist;
const struct pci_device_id *bldev;
int num_iomem, num_port, first_port = -1, i;
/*
@ -2667,13 +2689,13 @@ serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
/*
* Do not access blacklisted devices that are known not to
* feature serial ports.
* feature serial ports or are handled by other modules.
*/
for (blacklist = softmodem_blacklist;
blacklist < softmodem_blacklist + ARRAY_SIZE(softmodem_blacklist);
blacklist++) {
if (dev->vendor == blacklist->vendor &&
dev->device == blacklist->device)
for (bldev = blacklist;
bldev < blacklist + ARRAY_SIZE(blacklist);
bldev++) {
if (dev->vendor == bldev->vendor &&
dev->device == bldev->device)
return -ENODEV;
}