public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-11-01 09:13:37 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

[SERIAL] Convert parport_serial to use new 8250_pci interfaces

Browse source 
Convert parport_serial to use the new 8250_pci interface, converting
the table to a pciserial_board table.  This also unuses the SPCI_*
definitions in serialP.h, which can now be removed.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2005-07-27 11:41:18 +01:00 • committed by Russell King
parent 241fc4367b
commit 05caac585f
4 changed files with 168 additions and 237 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

341
drivers/parport/parport_serial.c
View file

@ -23,13 +23,8 @@
#include <linux/pci.h>
#include <linux/parport.h>
#include <linux/parport_pc.h>
#include <linux/serial.h>
#include <linux/serialP.h>
#include <linux/list.h>
#include <linux/8250_pci.h>
#include <asm/serial.h>
enum parport_pc_pci_cards {
titan_110l = 0,
titan_210l,
@ -168,182 +163,147 @@ static struct pci_device_id parport_serial_pci_tbl[] = {
};
MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);
struct pci_board_no_ids {
int flags;
int num_ports;
int base_baud;
int uart_offset;
int reg_shift;
int (*init_fn)(struct pci_dev *dev, struct pci_board_no_ids *board,
int enable);
int first_uart_offset;
};
static int __devinit siig10x_init_fn(struct pci_dev *dev, struct pci_board_no_ids *board, int enable)
{
return pci_siig10x_fn(dev, enable);
}
static int __devinit siig20x_init_fn(struct pci_dev *dev, struct pci_board_no_ids *board, int enable)
{
return pci_siig20x_fn(dev, enable);
}
static int __devinit netmos_serial_init(struct pci_dev *dev, struct pci_board_no_ids *board, int enable)
{
board->num_ports = dev->subsystem_device & 0xf;
return 0;
}
static struct pci_board_no_ids pci_boards[] __devinitdata = {
/*
* PCI Flags, Number of Ports, Base (Maximum) Baud Rate,
* Offset to get to next UART's registers,
* Register shift to use for memory-mapped I/O,
* Initialization function, first UART offset
*/
// Cards not tested are marked n/t
// If you have one of these cards and it works for you, please tell me..
/* titan_110l */ { SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 1, 921600 },
/* titan_210l */ { SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 2, 921600 },
/* netmos_9xx5_combo */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
/* netmos_9855 */ { SPCI_FL_BASE2 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
/* avlab_1s1p (n/t) */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
/* avlab_1s1p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
/* avlab_1s1p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
/* avlab_1s2p (n/t) */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
/* avlab_1s2p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
/* avlab_1s2p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
/* avlab_2s1p (n/t) */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 2, 115200 },
/* avlab_2s1p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 2, 115200 },
/* avlab_2s1p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 2, 115200 },
/* siig_1s1p_10x */ { SPCI_FL_BASE2, 1, 460800, 0, 0, siig10x_init_fn },
/* siig_2s1p_10x */ { SPCI_FL_BASE2, 1, 921600, 0, 0, siig10x_init_fn },
/* siig_2p1s_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
/* siig_1s1p_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
/* siig_2s1p_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
/*
* This table describes the serial "geometry" of these boards. Any
* quirks for these can be found in drivers/serial/8250_pci.c
*
* Cards not tested are marked n/t
* If you have one of these cards and it works for you, please tell me..
*/
static struct pciserial_board pci_parport_serial_boards[] __devinitdata = {
[titan_110l] = {
.flags = FL_BASE1 | FL_BASE_BARS,
.num_ports = 1,
.base_baud = 921600,
.uart_offset = 8,
},
[titan_210l] = {
.flags = FL_BASE1 | FL_BASE_BARS,
.num_ports = 2,
.base_baud = 921600,
.uart_offset = 8,
},
[netmos_9xx5_combo] = {
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 1,
.base_baud = 115200,
.uart_offset = 8,
},
[netmos_9855] = {
.flags = FL_BASE2 | FL_BASE_BARS,
.num_ports = 1,
.base_baud = 115200,
.uart_offset = 8,
},
[avlab_1s1p] = { /* n/t */
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 1,
.base_baud = 115200,
.uart_offset = 8,
},
[avlab_1s1p_650] = { /* nt */
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 1,
.base_baud = 115200,
.uart_offset = 8,
},
[avlab_1s1p_850] = { /* nt */
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 1,
.base_baud = 115200,
.uart_offset = 8,
},
[avlab_1s2p] = { /* n/t */
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 1,
.base_baud = 115200,
.uart_offset = 8,
},
[avlab_1s2p_650] = { /* nt */
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 1,
.base_baud = 115200,
.uart_offset = 8,
},
[avlab_1s2p_850] = { /* nt */
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 1,
.base_baud = 115200,
.uart_offset = 8,
},
[avlab_2s1p] = { /* n/t */
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 2,
.base_baud = 115200,
.uart_offset = 8,
},
[avlab_2s1p_650] = { /* nt */
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 2,
.base_baud = 115200,
.uart_offset = 8,
},
[avlab_2s1p_850] = { /* nt */
.flags = FL_BASE0 | FL_BASE_BARS,
.num_ports = 2,
.base_baud = 115200,
.uart_offset = 8,
},
[siig_1s1p_10x] = {
.flags = FL_BASE2,
.num_ports = 1,
.base_baud = 460800,
.uart_offset = 8,
},
[siig_2s1p_10x] = {
.flags = FL_BASE2,
.num_ports = 1,
.base_baud = 921600,
.uart_offset = 8,
},
[siig_2p1s_20x] = {
.flags = FL_BASE0,
.num_ports = 1,
.base_baud = 921600,
.uart_offset = 8,
},
[siig_1s1p_20x] = {
.flags = FL_BASE0,
.num_ports = 1,
.base_baud = 921600,
.uart_offset = 8,
},
[siig_2s1p_20x] = {
.flags = FL_BASE0,
.num_ports = 1,
.base_baud = 921600,
.uart_offset = 8,
},
};
struct parport_serial_private {
int num_ser;
int line[20];
struct pci_board_no_ids ser;
struct serial_private *serial;
int num_par;
struct parport *port[PARPORT_MAX];
struct parport_pc_pci par;
};
static int __devinit get_pci_port (struct pci_dev *dev,
struct pci_board_no_ids *board,
struct serial_struct *req,
int idx)
{
unsigned long port;
int base_idx;
int max_port;
int offset;
base_idx = SPCI_FL_GET_BASE(board->flags);
if (board->flags & SPCI_FL_BASE_TABLE)
base_idx += idx;
if (board->flags & SPCI_FL_REGION_SZ_CAP) {
max_port = pci_resource_len(dev, base_idx) / 8;
if (idx >= max_port)
return 1;
}
offset = board->first_uart_offset;
/* Timedia/SUNIX uses a mixture of BARs and offsets */
/* Ugh, this is ugly as all hell --- TYT */
if(dev->vendor == PCI_VENDOR_ID_TIMEDIA ) /* 0x1409 */
switch(idx) {
case 0: base_idx=0;
break;
case 1: base_idx=0; offset=8;
break;
case 2: base_idx=1;
break;
case 3: base_idx=1; offset=8;
break;
case 4: /* BAR 2*/
case 5: /* BAR 3 */
case 6: /* BAR 4*/
case 7: base_idx=idx-2; /* BAR 5*/
}
port = pci_resource_start(dev, base_idx) + offset;
if ((board->flags & SPCI_FL_BASE_TABLE) == 0)
port += idx * (board->uart_offset ? board->uart_offset : 8);
if (pci_resource_flags (dev, base_idx) & IORESOURCE_IO) {
int high_bits_offset = ((sizeof(long)-sizeof(int))*8);
req->port = port;
if (high_bits_offset)
req->port_high = port >> high_bits_offset;
else
req->port_high = 0;
return 0;
}
req->io_type = SERIAL_IO_MEM;
req->iomem_base = ioremap(port, board->uart_offset);
req->iomem_reg_shift = board->reg_shift;
req->port = 0;
return req->iomem_base ? 0 : 1;
}
/* Register the serial port(s) of a PCI card. */
static int __devinit serial_register (struct pci_dev *dev,
const struct pci_device_id *id)
{
struct pci_board_no_ids *board;
struct parport_serial_private *priv = pci_get_drvdata (dev);
struct serial_struct serial_req;
int base_baud;
int k;
int success = 0;
struct pciserial_board *board;
struct serial_private *serial;
priv->ser = pci_boards[id->driver_data];
board = &priv->ser;
if (board->init_fn && ((board->init_fn) (dev, board, 1) != 0))
return 1;
board = &pci_parport_serial_boards[id->driver_data];
serial = pciserial_init_ports(dev, board);
base_baud = board->base_baud;
if (!base_baud)
base_baud = BASE_BAUD;
memset (&serial_req, 0, sizeof (serial_req));
if (IS_ERR(serial))
return PTR_ERR(serial);
for (k = 0; k < board->num_ports; k++) {
int line;
if (priv->num_ser == ARRAY_SIZE (priv->line)) {
printk (KERN_WARNING
"parport_serial: %s: only %u serial lines "
"supported (%d reported)\n", pci_name (dev),
ARRAY_SIZE (priv->line), board->num_ports);
break;
}
serial_req.irq = dev->irq;
if (get_pci_port (dev, board, &serial_req, k))
break;
serial_req.flags = ASYNC_SKIP_TEST | ASYNC_AUTOPROBE;
serial_req.baud_base = base_baud;
line = register_serial (&serial_req);
if (line < 0) {
printk (KERN_DEBUG
"parport_serial: register_serial failed\n");
continue;
}
priv->line[priv->num_ser++] = line;
success = 1;
}
return success ? 0 : 1;
priv->serial = serial;
return 0;
}
/* Register the parallel port(s) of a PCI card. */
@ -411,7 +371,7 @@ static int __devinit parport_serial_pci_probe (struct pci_dev *dev,
priv = kmalloc (sizeof *priv, GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->num_ser = priv->num_par = 0;
memset(priv, 0, sizeof(struct parport_serial_private));
pci_set_drvdata (dev, priv);
err = pci_enable_device (dev);
@ -444,15 +404,12 @@ static void __devexit parport_serial_pci_remove (struct pci_dev *dev)
struct parport_serial_private *priv = pci_get_drvdata (dev);
int i;
// Serial ports
for (i = 0; i < priv->num_ser; i++) {
unregister_serial (priv->line[i]);
pci_set_drvdata(dev, NULL);
// Serial ports
if (priv->serial)
pciserial_remove_ports(priv->serial);
if (priv->ser.init_fn)
(priv->ser.init_fn) (dev, &priv->ser, 0);
}
pci_set_drvdata (dev, NULL);
// Parallel ports
for (i = 0; i < priv->num_par; i++)
parport_pc_unregister_port (priv->port[i]);
@ -461,11 +418,47 @@ static void __devexit parport_serial_pci_remove (struct pci_dev *dev)
return;
}
static int parport_serial_pci_suspend(struct pci_dev *dev, pm_message_t state)
{
struct parport_serial_private *priv = pci_get_drvdata(dev);
if (priv->serial)
pciserial_suspend_ports(priv->serial);
/* FIXME: What about parport? */
pci_save_state(dev);
pci_set_power_state(dev, pci_choose_state(dev, state));
return 0;
}
static int parport_serial_pci_resume(struct pci_dev *dev)
{
struct parport_serial_private *priv = pci_get_drvdata(dev);
pci_set_power_state(dev, PCI_D0);
pci_restore_state(dev);
/*
* The device may have been disabled. Re-enable it.
*/
pci_enable_device(dev);
if (priv->serial)
pciserial_resume_ports(priv->serial);
/* FIXME: What about parport? */
return 0;
}
static struct pci_driver parport_serial_pci_driver = {
.name = "parport_serial",
.id_table = parport_serial_pci_tbl,
.probe = parport_serial_pci_probe,
.remove = __devexit_p(parport_serial_pci_remove),
.suspend = parport_serial_pci_suspend,
.resume = parport_serial_pci_resume,
};

21
drivers/serial/8250_pci.c
View file

@ -46,7 +46,7 @@ struct pci_serial_quirk {
u32 subdevice;
int (*init)(struct pci_dev *dev);
int (*setup)(struct serial_private *, struct pciserial_board *,
struct uart_port *port, int idx);
struct uart_port *, int);
void (*exit)(struct pci_dev *dev);
};
@ -436,25 +436,6 @@ static int pci_siig_init(struct pci_dev *dev)
return -ENODEV;
}
int pci_siig10x_fn(struct pci_dev *dev, int enable)
{
int ret = 0;
if (enable)
ret = pci_siig10x_init(dev);
return ret;
}
int pci_siig20x_fn(struct pci_dev *dev, int enable)
{
int ret = 0;
if (enable)
ret = pci_siig20x_init(dev);
return ret;
}
EXPORT_SYMBOL(pci_siig10x_fn);
EXPORT_SYMBOL(pci_siig20x_fn);
/*
* Timedia has an explosion of boards, and to avoid the PCI table from
* growing *huge*, we use this function to collapse some 70 entries

3
include/linux/8250_pci.h
View file

@ -35,6 +35,3 @@ pciserial_init_ports(struct pci_dev *dev, struct pciserial_board *board);
void pciserial_remove_ports(struct serial_private *priv);
void pciserial_suspend_ports(struct serial_private *priv);
void pciserial_resume_ports(struct serial_private *priv);
int pci_siig10x_fn(struct pci_dev *dev, int enable);
int pci_siig20x_fn(struct pci_dev *dev, int enable);

40
include/linux/serialP.h
View file

@ -140,44 +140,4 @@ struct rs_multiport_struct {
#define ALPHA_KLUDGE_MCR 0
#endif
/*
* Definitions for PCI support.
*/
#define SPCI_FL_BASE_MASK 0x0007
#define SPCI_FL_BASE0 0x0000
#define SPCI_FL_BASE1 0x0001
#define SPCI_FL_BASE2 0x0002
#define SPCI_FL_BASE3 0x0003
#define SPCI_FL_BASE4 0x0004
#define SPCI_FL_GET_BASE(x) (x & SPCI_FL_BASE_MASK)
#define SPCI_FL_IRQ_MASK (0x0007 << 4)
#define SPCI_FL_IRQBASE0 (0x0000 << 4)
#define SPCI_FL_IRQBASE1 (0x0001 << 4)
#define SPCI_FL_IRQBASE2 (0x0002 << 4)
#define SPCI_FL_IRQBASE3 (0x0003 << 4)
#define SPCI_FL_IRQBASE4 (0x0004 << 4)
#define SPCI_FL_GET_IRQBASE(x) ((x & SPCI_FL_IRQ_MASK) >> 4)
/* Use successive BARs (PCI base address registers),
else use offset into some specified BAR */
#define SPCI_FL_BASE_TABLE 0x0100
/* Use successive entries in the irq resource table */
#define SPCI_FL_IRQ_TABLE 0x0200
/* Use the irq resource table instead of dev->irq */
#define SPCI_FL_IRQRESOURCE 0x0400
/* Use the Base address register size to cap number of ports */
#define SPCI_FL_REGION_SZ_CAP 0x0800
/* Do not use irq sharing for this device */
#define SPCI_FL_NO_SHIRQ 0x1000
/* This is a PNP device */
#define SPCI_FL_ISPNP 0x2000
#define SPCI_FL_PNPDEFAULT (SPCI_FL_IRQRESOURCE|SPCI_FL_ISPNP)
#endif /* _LINUX_SERIAL_H */