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Date: Fri, 25 Sep 2015 06:49:55 -0700
From: Christoph Hellwig <hch@....de>
To: Joel Becker <jlbec@...lplan.org>,
Andrew Morton <akpm@...ux-foundation.org>
Cc: Felipe Balbi <balbi@...com>, Tejun Heo <tj@...nel.org>,
Pratyush Anand <pratyush.anand@...il.com>,
target-devel@...r.kernel.org, cluster-devel@...hat.com,
ocfs2-devel@....oracle.com, linux-usb@...r.kernel.org,
netdev@...r.kernel.org
Subject: [PATCH 18/23] spear13xx_pcie_gadget: use per-attribute show and store methods
Signed-off-by: Christoph Hellwig <hch@....de>
---
drivers/misc/spear13xx_pcie_gadget.c | 216 ++++++++++++-----------------------
1 file changed, 71 insertions(+), 145 deletions(-)
diff --git a/drivers/misc/spear13xx_pcie_gadget.c b/drivers/misc/spear13xx_pcie_gadget.c
index b8374cd..ee120dc 100644
--- a/drivers/misc/spear13xx_pcie_gadget.c
+++ b/drivers/misc/spear13xx_pcie_gadget.c
@@ -220,11 +220,17 @@ static irqreturn_t spear_pcie_gadget_irq(int irq, void *dev_id)
/*
* configfs interfaces show/store functions
*/
-static ssize_t pcie_gadget_show_link(
- struct spear_pcie_gadget_config *config,
- char *buf)
+
+static struct pcie_gadget_target *to_target(struct config_item *item)
{
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+ return item ?
+ container_of(to_configfs_subsystem(to_config_group(item)),
+ struct pcie_gadget_target, subsys) : NULL;
+}
+
+static ssize_t pcie_gadget_link_show(struct config_item *item, char *buf)
+{
+ struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
if (readl(&app_reg->app_status_1) & ((u32)1 << XMLH_LINK_UP_ID))
return sprintf(buf, "UP");
@@ -232,11 +238,10 @@ static ssize_t pcie_gadget_show_link(
return sprintf(buf, "DOWN");
}
-static ssize_t pcie_gadget_store_link(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_link_store(struct config_item *item,
const char *buf, size_t count)
{
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+ struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
if (sysfs_streq(buf, "UP"))
writel(readl(&app_reg->app_ctrl_0) | (1 << APP_LTSSM_ENABLE_ID),
@@ -250,17 +255,15 @@ static ssize_t pcie_gadget_store_link(
return count;
}
-static ssize_t pcie_gadget_show_int_type(
- struct spear_pcie_gadget_config *config,
- char *buf)
+static ssize_t pcie_gadget_int_type_show(struct config_item *item, char *buf)
{
- return sprintf(buf, "%s", config->int_type);
+ return sprintf(buf, "%s", to_target(item)->int_type);
}
-static ssize_t pcie_gadget_store_int_type(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_int_type_store(struct config_item *item,
const char *buf, size_t count)
{
+ struct spear_pcie_gadget_config *config = to_target(item)
u32 cap, vec, flags;
ulong vector;
@@ -288,11 +291,10 @@ static ssize_t pcie_gadget_store_int_type(
return count;
}
-static ssize_t pcie_gadget_show_no_of_msi(
- struct spear_pcie_gadget_config *config,
- char *buf)
+static ssize_t pcie_gadget_no_of_msi_show(struct config_item *item, char *buf)
{
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+ struct spear_pcie_gadget_config *config = to_target(item)
+ struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
u32 cap, vec, flags;
ulong vector;
@@ -313,13 +315,12 @@ static ssize_t pcie_gadget_show_no_of_msi(
return sprintf(buf, "%lu", vector);
}
-static ssize_t pcie_gadget_store_no_of_msi(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_no_of_msi_store(struct config_item *item,
const char *buf, size_t count)
{
int ret;
- ret = kstrtoul(buf, 0, &config->requested_msi);
+ ret = kstrtoul(buf, 0, &to_target(item)->requested_msi);
if (ret)
return ret;
@@ -329,11 +330,10 @@ static ssize_t pcie_gadget_store_no_of_msi(
return count;
}
-static ssize_t pcie_gadget_store_inta(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_inta_store(struct config_item *item,
const char *buf, size_t count)
{
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+ struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
ulong en;
int ret;
@@ -351,10 +351,10 @@ static ssize_t pcie_gadget_store_inta(
return count;
}
-static ssize_t pcie_gadget_store_send_msi(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_send_msi_store(struct config_item *item,
const char *buf, size_t count)
{
+ struct spear_pcie_gadget_config *config = to_target(item)
struct pcie_app_reg __iomem *app_reg = config->va_app_base;
ulong vector;
u32 ven_msi;
@@ -388,19 +388,16 @@ static ssize_t pcie_gadget_store_send_msi(
return count;
}
-static ssize_t pcie_gadget_show_vendor_id(
- struct spear_pcie_gadget_config *config,
- char *buf)
+static ssize_t pcie_gadget_vendor_id_show(struct config_item *item, char *buf)
{
u32 id;
- spear_dbi_read_reg(config, PCI_VENDOR_ID, 2, &id);
+ spear_dbi_read_reg(to_target(item), PCI_VENDOR_ID, 2, &id);
return sprintf(buf, "%x", id);
}
-static ssize_t pcie_gadget_store_vendor_id(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_vendor_id_store(struct config_item *item,
const char *buf, size_t count)
{
ulong id;
@@ -410,24 +407,21 @@ static ssize_t pcie_gadget_store_vendor_id(
if (ret)
return ret;
- spear_dbi_write_reg(config, PCI_VENDOR_ID, 2, id);
+ spear_dbi_write_reg(to_target(item), PCI_VENDOR_ID, 2, id);
return count;
}
-static ssize_t pcie_gadget_show_device_id(
- struct spear_pcie_gadget_config *config,
- char *buf)
+static ssize_t pcie_gadget_device_id_show(struct config_item *item, char *buf)
{
u32 id;
- spear_dbi_read_reg(config, PCI_DEVICE_ID, 2, &id);
+ spear_dbi_read_reg(to_target(item), PCI_DEVICE_ID, 2, &id);
return sprintf(buf, "%x", id);
}
-static ssize_t pcie_gadget_store_device_id(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_device_id_store(struct config_item *item,
const char *buf, size_t count)
{
ulong id;
@@ -437,22 +431,20 @@ static ssize_t pcie_gadget_store_device_id(
if (ret)
return ret;
- spear_dbi_write_reg(config, PCI_DEVICE_ID, 2, id);
+ spear_dbi_write_reg(to_target(item), PCI_DEVICE_ID, 2, id);
return count;
}
-static ssize_t pcie_gadget_show_bar0_size(
- struct spear_pcie_gadget_config *config,
- char *buf)
+static ssize_t pcie_gadget_bar0_size_show(struct config_item *item, char *buf)
{
- return sprintf(buf, "%lx", config->bar0_size);
+ return sprintf(buf, "%lx", to_target(item)->bar0_size);
}
-static ssize_t pcie_gadget_store_bar0_size(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_size_store(struct config_item *item,
const char *buf, size_t count)
{
+ struct spear_pcie_gadget_config *config = to_target(item)
ulong size;
u32 pos, pos1;
u32 no_of_bit = 0;
@@ -489,21 +481,20 @@ static ssize_t pcie_gadget_store_bar0_size(
return count;
}
-static ssize_t pcie_gadget_show_bar0_address(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_address_show(struct config_item *item,
char *buf)
{
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
+ struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
u32 address = readl(&app_reg->pim0_mem_addr_start);
return sprintf(buf, "%x", address);
}
-static ssize_t pcie_gadget_store_bar0_address(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_address_store(struct config_item *item,
const char *buf, size_t count)
{
+ struct spear_pcie_gadget_config *config = to_target(item)
struct pcie_app_reg __iomem *app_reg = config->va_app_base;
ulong address;
int ret;
@@ -524,15 +515,13 @@ static ssize_t pcie_gadget_store_bar0_address(
return count;
}
-static ssize_t pcie_gadget_show_bar0_rw_offset(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_rw_offset_show(struct config_item *item,
char *buf)
{
- return sprintf(buf, "%lx", config->bar0_rw_offset);
+ return sprintf(buf, "%lx", to_target(item)->bar0_rw_offset);
}
-static ssize_t pcie_gadget_store_bar0_rw_offset(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_rw_offset_store(struct config_item *item,
const char *buf, size_t count)
{
ulong offset;
@@ -545,15 +534,14 @@ static ssize_t pcie_gadget_store_bar0_rw_offset(
if (offset % 4)
return -EINVAL;
- config->bar0_rw_offset = offset;
+ to_target(item)->bar0_rw_offset = offset;
return count;
}
-static ssize_t pcie_gadget_show_bar0_data(
- struct spear_pcie_gadget_config *config,
- char *buf)
+static ssize_t pcie_gadget_bar0_data_show(struct config_item *item, char *buf)
{
+ struct spear_pcie_gadget_config *config = to_target(item)
ulong data;
if (!config->va_bar0_address)
@@ -564,10 +552,10 @@ static ssize_t pcie_gadget_show_bar0_data(
return sprintf(buf, "%lx", data);
}
-static ssize_t pcie_gadget_store_bar0_data(
- struct spear_pcie_gadget_config *config,
+static ssize_t pcie_gadget_bar0_data_store(struct config_item *item,
const char *buf, size_t count)
{
+ struct spear_pcie_gadget_config *config = to_target(item)
ulong data;
int ret;
@@ -583,97 +571,35 @@ static ssize_t pcie_gadget_store_bar0_data(
return count;
}
-/*
- * Attribute definitions.
- */
-
-#define PCIE_GADGET_TARGET_ATTR_RO(_name) \
-static struct pcie_gadget_target_attr pcie_gadget_target_##_name = \
- __CONFIGFS_ATTR(_name, S_IRUGO, pcie_gadget_show_##_name, NULL)
-
-#define PCIE_GADGET_TARGET_ATTR_WO(_name) \
-static struct pcie_gadget_target_attr pcie_gadget_target_##_name = \
- __CONFIGFS_ATTR(_name, S_IWUSR, NULL, pcie_gadget_store_##_name)
-
-#define PCIE_GADGET_TARGET_ATTR_RW(_name) \
-static struct pcie_gadget_target_attr pcie_gadget_target_##_name = \
- __CONFIGFS_ATTR(_name, S_IRUGO | S_IWUSR, pcie_gadget_show_##_name, \
- pcie_gadget_store_##_name)
-PCIE_GADGET_TARGET_ATTR_RW(link);
-PCIE_GADGET_TARGET_ATTR_RW(int_type);
-PCIE_GADGET_TARGET_ATTR_RW(no_of_msi);
-PCIE_GADGET_TARGET_ATTR_WO(inta);
-PCIE_GADGET_TARGET_ATTR_WO(send_msi);
-PCIE_GADGET_TARGET_ATTR_RW(vendor_id);
-PCIE_GADGET_TARGET_ATTR_RW(device_id);
-PCIE_GADGET_TARGET_ATTR_RW(bar0_size);
-PCIE_GADGET_TARGET_ATTR_RW(bar0_address);
-PCIE_GADGET_TARGET_ATTR_RW(bar0_rw_offset);
-PCIE_GADGET_TARGET_ATTR_RW(bar0_data);
+CONFIGFS_ATTR(pcie_gadget_, link);
+CONFIGFS_ATTR(pcie_gadget_, int_type);
+CONFIGFS_ATTR(pcie_gadget_, no_of_msi);
+CONFIGFS_ATTR_WO(pcie_gadget_, inta);
+CONFIGFS_ATTR_WO(pcie_gadget_, send_msi);
+CONFIGFS_ATTR(pcie_gadget_, vendor_id);
+CONFIGFS_ATTR(pcie_gadget_, device_id);
+CONFIGFS_ATTR(pcie_gadget_, bar0_size);
+CONFIGFS_ATTR(pcie_gadget_, bar0_address);
+CONFIGFS_ATTR(pcie_gadget_, bar0_rw_offset);
+CONFIGFS_ATTR(pcie_gadget_, bar0_data);
static struct configfs_attribute *pcie_gadget_target_attrs[] = {
- &pcie_gadget_target_link.attr,
- &pcie_gadget_target_int_type.attr,
- &pcie_gadget_target_no_of_msi.attr,
- &pcie_gadget_target_inta.attr,
- &pcie_gadget_target_send_msi.attr,
- &pcie_gadget_target_vendor_id.attr,
- &pcie_gadget_target_device_id.attr,
- &pcie_gadget_target_bar0_size.attr,
- &pcie_gadget_target_bar0_address.attr,
- &pcie_gadget_target_bar0_rw_offset.attr,
- &pcie_gadget_target_bar0_data.attr,
+ &pcie_gadget_attr_link,
+ &pcie_gadget_attr_int_type,
+ &pcie_gadget_attr_no_of_msi,
+ &pcie_gadget_attr_inta,
+ &pcie_gadget_attr_send_msi,
+ &pcie_gadget_attr_vendor_id,
+ &pcie_gadget_attr_device_id,
+ &pcie_gadget_attr_bar0_size,
+ &pcie_gadget_attr_bar0_address,
+ &pcie_gadget_attr_bar0_rw_offset,
+ &pcie_gadget_attr_bar0_data,
NULL,
};
-static struct pcie_gadget_target *to_target(struct config_item *item)
-{
- return item ?
- container_of(to_configfs_subsystem(to_config_group(item)),
- struct pcie_gadget_target, subsys) : NULL;
-}
-
-/*
- * Item operations and type for pcie_gadget_target.
- */
-
-static ssize_t pcie_gadget_target_attr_show(struct config_item *item,
- struct configfs_attribute *attr,
- char *buf)
-{
- ssize_t ret = -EINVAL;
- struct pcie_gadget_target *target = to_target(item);
- struct pcie_gadget_target_attr *t_attr =
- container_of(attr, struct pcie_gadget_target_attr, attr);
-
- if (t_attr->show)
- ret = t_attr->show(&target->config, buf);
- return ret;
-}
-
-static ssize_t pcie_gadget_target_attr_store(struct config_item *item,
- struct configfs_attribute *attr,
- const char *buf,
- size_t count)
-{
- ssize_t ret = -EINVAL;
- struct pcie_gadget_target *target = to_target(item);
- struct pcie_gadget_target_attr *t_attr =
- container_of(attr, struct pcie_gadget_target_attr, attr);
-
- if (t_attr->store)
- ret = t_attr->store(&target->config, buf, count);
- return ret;
-}
-
-static struct configfs_item_operations pcie_gadget_target_item_ops = {
- .show_attribute = pcie_gadget_target_attr_show,
- .store_attribute = pcie_gadget_target_attr_store,
-};
-
static struct config_item_type pcie_gadget_target_type = {
.ct_attrs = pcie_gadget_target_attrs,
- .ct_item_ops = &pcie_gadget_target_item_ops,
.ct_owner = THIS_MODULE,
};
--
1.9.1
--
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