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Message-Id: <20241025082128.60034-3-412574090@163.com>
Date: Fri, 25 Oct 2024 16:21:27 +0800
From: 412574090@....com
To: sudipm.mukherjee@...il.com
Cc: linux-kernel@...r.kernel.org,
xiongxin@...inos.cn,
weiyufeng <weiyufeng@...inos.cn>
Subject: [PATCH 3/4] parport: add parport_data struct
From: weiyufeng <weiyufeng@...inos.cn>
add parport_data struct,save iobase,iobase_hi,irq,dma for parport.
Signed-off-by: weiyufeng <weiyufeng@...inos.cn>
---
arch/powerpc/include/asm/parport.h | 5 +-
arch/sparc/include/asm/parport_64.h | 13 +--
drivers/parisc/superio.c | 9 ++-
drivers/parport/parport_cs.c | 73 ++++++++---------
drivers/parport/parport_pc.c | 119 +++++++++++++++++-----------
drivers/parport/parport_serial.c | 7 +-
include/linux/parport.h | 8 ++
include/linux/parport_pc.h | 8 +-
8 files changed, 143 insertions(+), 99 deletions(-)
diff --git a/arch/powerpc/include/asm/parport.h b/arch/powerpc/include/asm/parport.h
index 42cc321ed754..9acfa608c531 100644
--- a/arch/powerpc/include/asm/parport.h
+++ b/arch/powerpc/include/asm/parport.h
@@ -21,6 +21,7 @@ static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
int propsize;
int count = 0;
int virq;
+ struct parport_data tmp_pdata;
for_each_compatible_node(np, "parallel", "pnpPNP,400") {
prop = of_get_property(np, "reg", &propsize);
@@ -32,8 +33,8 @@ static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
if (!virq)
continue;
- if (parport_pc_probe_port(io1, io2, virq, autodma, NULL, 0)
- != NULL)
+ parport_data_ioport_init(&tmp_pdata, io1, io2, virq, autodma);
+ if (parport_pc_probe_port(tmp_pdata, NULL, 0) != NULL)
count++;
}
return count;
diff --git a/arch/sparc/include/asm/parport_64.h b/arch/sparc/include/asm/parport_64.h
index 4f530a270760..ff2b7855fbb7 100644
--- a/arch/sparc/include/asm/parport_64.h
+++ b/arch/sparc/include/asm/parport_64.h
@@ -115,13 +115,14 @@ static int ecpp_probe(struct platform_device *op)
unsigned long d_len;
struct device_node *parent;
struct parport *p;
+ struct parport_data tmp_pdata;
int slot, err;
parent = op->dev.of_node->parent;
if (of_node_name_eq(parent, "dma")) {
- p = parport_pc_probe_port(base, base + 0x400,
- op->archdata.irqs[0], PARPORT_DMA_NOFIFO,
- op->dev.parent->parent, 0);
+ parport_data_ioport_init(&tmp_pdata, base, base + 0x400,
+ op->archdata.irqs[0], PARPORT_DMA_NOFIFO);
+ p = parport_pc_probe_port(tmp_pdata, op->dev.parent->parent, 0);
if (!p)
return -ENOMEM;
dev_set_drvdata(&op->dev, p);
@@ -169,9 +170,9 @@ static int ecpp_probe(struct platform_device *op)
ns87303_modify(config, PTR,
0, PTR_LPT_REG_DIR);
- p = parport_pc_probe_port(base, base + 0x400,
- op->archdata.irqs[0],
- slot,
+ parport_data_ioport_init(&tmp_pdata, base, base + 0x400,
+ op->archdata.irqs[0], slot);
+ p = parport_pc_probe_port(tmp_pdata,
op->dev.parent,
0);
err = -ENOMEM;
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index e973c6893203..ca162c3bbe09 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -418,10 +418,11 @@ static void __init superio_serial_init(void)
static void __init superio_parport_init(void)
{
#ifdef CONFIG_PARPORT_PC
- if (!parport_pc_probe_port(sio_dev.pp_base,
- 0 /*base_hi*/,
- PAR_IRQ,
- PARPORT_DMA_NONE /* dma */,
+ struct parport_data tmp_pdata;
+
+ parport_data_ioport_init(&tmp_pdata, sio_dev.pp_base, 0,
+ PAR_IRQ, PARPORT_DMA_NONE);
+ if (!parport_pc_probe_port(tmp_pdata,
NULL /*struct pci_dev* */,
0 /* shared irq flags */))
diff --git a/drivers/parport/parport_cs.c b/drivers/parport/parport_cs.c
index 8e7e3ac4bb87..5b2437f710cc 100644
--- a/drivers/parport/parport_cs.c
+++ b/drivers/parport/parport_cs.c
@@ -118,42 +118,43 @@ static int parport_config_check(struct pcmcia_device *p_dev, void *priv_data)
static int parport_config(struct pcmcia_device *link)
{
- parport_info_t *info = link->priv;
- struct parport *p;
- int ret;
-
- dev_dbg(&link->dev, "parport_config\n");
-
- if (epp_mode)
- link->config_index |= FORCE_EPP_MODE;
-
- ret = pcmcia_loop_config(link, parport_config_check, NULL);
- if (ret)
- goto failed;
-
- if (!link->irq)
- goto failed;
- ret = pcmcia_enable_device(link);
- if (ret)
- goto failed;
-
- p = parport_pc_probe_port(link->resource[0]->start,
- link->resource[1]->start,
- link->irq, PARPORT_DMA_NONE,
- &link->dev, IRQF_SHARED);
- if (p == NULL) {
- pr_notice("parport_cs: parport_pc_probe_port() at 0x%3x, irq %u failed\n",
- (unsigned int)link->resource[0]->start, link->irq);
- goto failed;
- }
-
- p->modes |= PARPORT_MODE_PCSPP;
- if (epp_mode)
- p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP;
- info->ndev = 1;
- info->port = p;
-
- return 0;
+ parport_info_t *info = link->priv;
+ struct parport *p;
+ struct parport_data tmp_pdata;
+ int ret;
+
+ dev_dbg(&link->dev, "parport_config\n");
+
+ if (epp_mode)
+ link->config_index |= FORCE_EPP_MODE;
+
+ ret = pcmcia_loop_config(link, parport_config_check, NULL);
+ if (ret)
+ goto failed;
+
+ if (!link->irq)
+ goto failed;
+ ret = pcmcia_enable_device(link);
+ if (ret)
+ goto failed;
+
+ parport_data_ioport_init(&tmp_pdata, link->resource[0]->start,
+ link->resource[1]->start,
+ link->irq, PARPORT_DMA_NONE);
+ p = parport_pc_probe_port(tmp_pdata, &link->dev, IRQF_SHARED);
+ if (p == NULL) {
+ pr_notice("parport_cs: parport_pc_probe_port() at 0x%3x, irq %u failed\n",
+ (unsigned int)link->resource[0]->start, link->irq);
+ goto failed;
+ }
+
+ p->modes |= PARPORT_MODE_PCSPP;
+ if (epp_mode)
+ p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP;
+ info->ndev = 1;
+ info->port = p;
+
+ return 0;
failed:
parport_cs_release(link);
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 160d87449913..b4e959a2d8a1 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -2022,9 +2022,7 @@ static int parport_dma_probe(struct parport *p)
static LIST_HEAD(ports_list);
static DEFINE_SPINLOCK(ports_lock);
-static struct parport *__parport_pc_probe_port(unsigned long int base,
- unsigned long int base_hi,
- int irq, int dma,
+static struct parport *__parport_pc_probe_port(struct parport_data data,
struct device *dev,
int irqflags,
unsigned int mode_mask,
@@ -2044,7 +2042,7 @@ static struct parport *__parport_pc_probe_port(unsigned long int base,
/* We need a physical device to attach to, but none was
* provided. Create our own. */
pdev = platform_device_register_simple("parport_pc",
- base, NULL, 0);
+ data.iobase, NULL, 0);
if (IS_ERR(pdev))
return NULL;
dev = &pdev->dev;
@@ -2052,7 +2050,7 @@ static struct parport *__parport_pc_probe_port(unsigned long int base,
ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(24));
if (ret) {
dev_err(dev, "Unable to set coherent dma mask: disabling DMA\n");
- dma = PARPORT_DMA_NONE;
+ data.dma = PARPORT_DMA_NONE;
}
}
@@ -2065,13 +2063,17 @@ static struct parport *__parport_pc_probe_port(unsigned long int base,
goto out2;
/* a misnomer, actually - it's allocate and reserve parport number */
- p = parport_register_port(base, irq, dma, ops);
+ p = parport_register_port(data.iobase, data.irq, data.dma, ops);
if (!p)
goto out3;
- base_res = request_region(base, 3, p->name);
- if (!base_res)
+ if (p->iobase) {
+ base_res = request_region(data.iobase, 3, p->name);
+ if (!base_res)
+ goto out4;
+ } else {
goto out4;
+ }
memcpy(ops, &parport_pc_ops, sizeof(struct parport_operations));
priv->ctr = 0xc;
@@ -2085,18 +2087,18 @@ static struct parport *__parport_pc_probe_port(unsigned long int base,
priv->port = p;
p->dev = dev;
- p->iobase_hi = base_hi;
+ p->iobase_hi = data.iobase_hi;
p->modes = PARPORT_MODE_PCSPP | PARPORT_MODE_SAFEININT;
p->private_data = priv;
- if (base_hi) {
- ECR_res = request_region(base_hi, 3, p->name);
+ if (p->iobase_hi) {
+ ECR_res = request_region(data.iobase_hi, 3, p->name);
if (ECR_res)
parport_ECR_present(p);
}
- if (base != 0x3bc) {
- EPP_res = request_region(base+0x3, 5, p->name);
+ if (p->iobase != 0x3bc) {
+ EPP_res = request_region(data.iobase + 0x3, 5, p->name);
if (EPP_res)
if (!parport_EPP_supported(p))
parport_ECPEPP_supported(p);
@@ -2191,13 +2193,16 @@ do { \
pr_info("%s: irq %d detected\n", p->name, probedirq);
/* If No ECP release the ports grabbed above. */
- if (ECR_res && (p->modes & PARPORT_MODE_ECP) == 0) {
- release_region(base_hi, 3);
- ECR_res = NULL;
+ if ((p->modes & PARPORT_MODE_ECP) == 0) {
+ if (p->iobase_hi && ECR_res) {
+ release_region(p->iobase_hi, 3);
+ ECR_res = NULL;
+ }
}
+
/* Likewise for EEP ports */
- if (EPP_res && (p->modes & PARPORT_MODE_EPP) == 0) {
- release_region(base+3, 5);
+ if (p->iobase && EPP_res && (p->modes & PARPORT_MODE_EPP) == 0) {
+ release_region(p->iobase + 3, 5);
EPP_res = NULL;
}
if (p->irq != PARPORT_IRQ_NONE) {
@@ -2257,10 +2262,10 @@ do { \
out5:
if (ECR_res)
- release_region(base_hi, 3);
+ release_region(p->iobase_hi, 3);
if (EPP_res)
- release_region(base+0x3, 5);
- release_region(base, 3);
+ release_region(p->iobase + 0x3, 5);
+ release_region(p->iobase, 3);
out4:
parport_del_port(p);
out3:
@@ -2273,14 +2278,24 @@ do { \
return NULL;
}
-struct parport *parport_pc_probe_port(unsigned long int base,
- unsigned long int base_hi,
- int irq, int dma,
+void parport_data_ioport_init(struct parport_data *tmp_pdata,
+ unsigned long iobase,
+ unsigned long iobase_hi,
+ int irq, int dma)
+{
+ memset(tmp_pdata, 0, sizeof(struct parport_data));
+ tmp_pdata->iobase = iobase;
+ tmp_pdata->iobase_hi = iobase_hi;
+ tmp_pdata->irq = irq;
+ tmp_pdata->dma = dma;
+}
+EXPORT_SYMBOL(parport_data_ioport_init);
+
+struct parport *parport_pc_probe_port(struct parport_data data,
struct device *dev,
int irqflags)
{
- return __parport_pc_probe_port(base, base_hi, irq, dma,
- dev, irqflags, 0, 0);
+ return __parport_pc_probe_port(data, dev, irqflags, 0, 0);
}
EXPORT_SYMBOL(parport_pc_probe_port);
@@ -2325,6 +2340,7 @@ static int sio_ite_8872_probe(struct pci_dev *pdev, int autoirq, int autodma,
short inta_addr[6] = { 0x2A0, 0x2C0, 0x220, 0x240, 0x1E0 };
u32 ite8872set;
u32 ite8872_lpt, ite8872_lpthi;
+ struct parport_data tmp_pdata;
u8 ite8872_irq, type;
int irq;
int i;
@@ -2407,8 +2423,9 @@ static int sio_ite_8872_probe(struct pci_dev *pdev, int autoirq, int autodma,
* Release the resource so that parport_pc_probe_port can get it.
*/
release_region(inta_addr[i], 32);
- if (parport_pc_probe_port(ite8872_lpt, ite8872_lpthi,
- irq, PARPORT_DMA_NONE, &pdev->dev, 0)) {
+ parport_data_ioport_init(&tmp_pdata, ite8872_lpt, ite8872_lpthi, irq,
+ PARPORT_DMA_NONE);
+ if (parport_pc_probe_port(tmp_pdata, &pdev->dev, 0)) {
pr_info("parport_pc: ITE 8872 parallel port: io=0x%X",
ite8872_lpt);
if (irq != PARPORT_IRQ_NONE)
@@ -2447,6 +2464,7 @@ static struct parport_pc_via_data via_8231_data = {
static int sio_via_probe(struct pci_dev *pdev, int autoirq, int autodma,
const struct parport_pc_via_data *via)
{
+ struct parport_data tmp_pdata;
u8 tmp, tmp2, siofunc;
u8 ppcontrol = 0;
int dma, irq;
@@ -2587,7 +2605,8 @@ static int sio_via_probe(struct pci_dev *pdev, int autoirq, int autodma,
}
/* finally, do the probe with values obtained */
- if (parport_pc_probe_port(port1, port2, irq, dma, &pdev->dev, 0)) {
+ parport_data_ioport_init(&tmp_pdata, port1, port2, irq, dma);
+ if (parport_pc_probe_port(tmp_pdata, &pdev->dev, 0)) {
pr_info("parport_pc: VIA parallel port: io=0x%X", port1);
if (irq != PARPORT_IRQ_NONE)
pr_cont(", irq=%d", irq);
@@ -2868,6 +2887,7 @@ static int parport_pc_pci_probe(struct pci_dev *dev,
{
int err, count, n, i = id->driver_data;
struct pci_parport_data *data;
+ struct parport_data tmp_pdata;
if (i < last_sio)
/* This is an onboard Super-IO and has already been probed */
@@ -2913,9 +2933,10 @@ static int parport_pc_pci_probe(struct pci_dev *dev,
printk(KERN_DEBUG "PCI parallel port detected: %04x:%04x, I/O at %#lx(%#lx), IRQ %d\n",
id->vendor, id->device, io_lo, io_hi, irq);
}
+ parport_data_ioport_init(&tmp_pdata, io_lo, io_hi,
+ irq, PARPORT_DMA_NONE);
data->ports[count] =
- __parport_pc_probe_port(io_lo, io_hi, irq,
- PARPORT_DMA_NONE, &dev->dev,
+ __parport_pc_probe_port(tmp_pdata, &dev->dev,
IRQF_SHARED,
cards[i].mode_mask,
cards[i].ecr_writable);
@@ -3002,35 +3023,35 @@ static int parport_pc_pnp_probe(struct pnp_dev *dev,
const struct pnp_device_id *id)
{
struct parport *pdata;
- unsigned long io_lo, io_hi;
- int dma, irq;
+ struct parport_data tmp_pdata;
+ memset(&tmp_pdata, 0, sizeof(struct parport_data));
if (pnp_port_valid(dev, 0) &&
!(pnp_port_flags(dev, 0) & IORESOURCE_DISABLED)) {
- io_lo = pnp_port_start(dev, 0);
+ tmp_pdata.iobase = pnp_port_start(dev, 0);
} else
return -EINVAL;
if (pnp_port_valid(dev, 1) &&
!(pnp_port_flags(dev, 1) & IORESOURCE_DISABLED)) {
- io_hi = pnp_port_start(dev, 1);
+ tmp_pdata.iobase_hi = pnp_port_start(dev, 1);
} else
- io_hi = 0;
+ tmp_pdata.iobase_hi = 0;
if (pnp_irq_valid(dev, 0) &&
!(pnp_irq_flags(dev, 0) & IORESOURCE_DISABLED)) {
- irq = pnp_irq(dev, 0);
+ tmp_pdata.irq = pnp_irq(dev, 0);
} else
- irq = PARPORT_IRQ_NONE;
+ tmp_pdata.irq = PARPORT_IRQ_NONE;
if (pnp_dma_valid(dev, 0) &&
!(pnp_dma_flags(dev, 0) & IORESOURCE_DISABLED)) {
- dma = pnp_dma(dev, 0);
+ tmp_pdata.dma = pnp_dma(dev, 0);
} else
- dma = PARPORT_DMA_NONE;
+ tmp_pdata.dma = PARPORT_DMA_NONE;
dev_info(&dev->dev, "reported by %s\n", dev->protocol->name);
- pdata = parport_pc_probe_port(io_lo, io_hi, irq, dma, &dev->dev, 0);
+ pdata = parport_pc_probe_port(tmp_pdata, &dev->dev, 0);
if (pdata == NULL)
return -ENODEV;
@@ -3077,13 +3098,17 @@ static struct platform_driver parport_pc_platform_driver = {
static int __attribute__((unused))
parport_pc_find_isa_ports(int autoirq, int autodma)
{
+ struct parport_data tmp_pdata;
int count = 0;
- if (parport_pc_probe_port(0x3bc, 0x7bc, autoirq, autodma, NULL, 0))
+ parport_data_ioport_init(&tmp_pdata, 0x3bc, 0x7bc, autoirq, autodma);
+ if (parport_pc_probe_port(tmp_pdata, NULL, 0))
count++;
- if (parport_pc_probe_port(0x378, 0x778, autoirq, autodma, NULL, 0))
+ parport_data_ioport_init(&tmp_pdata, 0x378, 0x778, autoirq, autodma);
+ if (parport_pc_probe_port(tmp_pdata, NULL, 0))
count++;
- if (parport_pc_probe_port(0x278, 0x678, autoirq, autodma, NULL, 0))
+ parport_data_ioport_init(&tmp_pdata, 0x278, 0x678, autoirq, autodma);
+ if (parport_pc_probe_port(tmp_pdata, NULL, 0))
count++;
return count;
@@ -3352,6 +3377,7 @@ __setup("parport_init_mode=", parport_init_mode_setup);
static int __init parport_pc_init(void)
{
+ struct parport_data tmp_pdata;
int err;
if (parse_parport_params())
@@ -3370,8 +3396,9 @@ static int __init parport_pc_init(void)
break;
if (io_hi[i] == PARPORT_IOHI_AUTO)
io_hi[i] = 0x400 + io[i];
- parport_pc_probe_port(io[i], io_hi[i],
- irqval[i], dmaval[i], NULL, 0);
+ parport_data_ioport_init(&tmp_pdata, io[i], io_hi[i],
+ irqval[i], dmaval[i]);
+ parport_pc_probe_port(tmp_pdata, NULL, 0);
}
} else
parport_pc_find_ports(irqval[0], dmaval[0]);
diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c
index 3644997a8342..cc6ee3f0ab3e 100644
--- a/drivers/parport/parport_serial.c
+++ b/drivers/parport/parport_serial.c
@@ -648,6 +648,7 @@ static int parport_register(struct pci_dev *dev, const struct pci_device_id *id)
return -ENODEV;
for (n = 0; n < card->numports; n++) {
+ struct parport_data tmp_pdata;
struct parport *port;
int lo = card->addr[n].lo;
int hi = card->addr[n].hi;
@@ -684,8 +685,10 @@ static int parport_register(struct pci_dev *dev, const struct pci_device_id *id)
"PCI parallel port detected: I/O at %#lx(%#lx), IRQ %d\n",
io_lo, io_hi, irq);
}
- port = parport_pc_probe_port (io_lo, io_hi, irq,
- PARPORT_DMA_NONE, &dev->dev, IRQF_SHARED);
+ parport_data_ioport_init(&tmp_pdata, io_lo, io_hi,
+ irq, PARPORT_DMA_NONE);
+ port = parport_pc_probe_port(tmp_pdata, &dev->dev,
+ IRQF_SHARED);
if (port) {
priv->port[priv->num_par++] = port;
success = 1;
diff --git a/include/linux/parport.h b/include/linux/parport.h
index 4e39c400d002..308eadce42dd 100644
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -180,6 +180,14 @@ struct ieee1284_info {
struct semaphore irq;
};
+struct parport_data {
+ /* for ioport */
+ unsigned long iobase; /* base address for ioport */
+ unsigned long iobase_hi; /* base address (hi - ECR) */
+ int irq;
+ int dma;
+};
+
/* A parallel port */
struct parport {
unsigned long iobase; /* base address for ioport */
diff --git a/include/linux/parport_pc.h b/include/linux/parport_pc.h
index 4d92c831d06a..d6c3f323caa1 100644
--- a/include/linux/parport_pc.h
+++ b/include/linux/parport_pc.h
@@ -230,11 +230,13 @@ static __inline__ void parport_pc_enable_irq(struct parport *p)
extern void parport_pc_release_resources(struct parport *p);
extern int parport_pc_claim_resources(struct parport *p);
+extern void parport_data_ioport_init(struct parport_data *tmp_pdata,
+ unsigned long iobase,
+ unsigned long iobase_hi,
+ int irq, int dma);
/* PCMCIA code will want to get us to look at a port. Provide a mechanism. */
-extern struct parport *parport_pc_probe_port(unsigned long base,
- unsigned long base_hi,
- int irq, int dma,
+extern struct parport *parport_pc_probe_port(struct parport_data data,
struct device *dev,
int irqflags);
extern void parport_pc_unregister_port(struct parport *p);
--
2.25.1
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