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-rw-r--r--drivers/staging/unisys/visorchipset/visorchipset_main.c233
1 files changed, 106 insertions, 127 deletions
diff --git a/drivers/staging/unisys/visorchipset/visorchipset_main.c b/drivers/staging/unisys/visorchipset/visorchipset_main.c
index 48db6eec257d..14eb0ab93b71 100644
--- a/drivers/staging/unisys/visorchipset/visorchipset_main.c
+++ b/drivers/staging/unisys/visorchipset/visorchipset_main.c
@@ -144,16 +144,6 @@ static VISORCHANNEL *ControlVm_channel;
static ssize_t visorchipset_proc_read_writeonly(struct file *file,
char __user *buf,
size_t len, loff_t *offset);
-static ssize_t proc_read_installer(struct file *file, char __user *buf,
- size_t len, loff_t *offset);
-static ssize_t proc_write_installer(struct file *file,
- const char __user *buffer,
- size_t count, loff_t *ppos);
-
-static const struct file_operations proc_installer_fops = {
- .read = proc_read_installer,
- .write = proc_write_installer,
-};
typedef struct {
U8 __iomem *ptr; /* pointer to base address of payload pool */
@@ -315,9 +305,30 @@ static ssize_t boottotool_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count);
static DEVICE_ATTR_RW(boottotool);
+static ssize_t error_show(struct device *dev, struct device_attribute *attr,
+ char *buf);
+static ssize_t error_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count);
+static DEVICE_ATTR_RW(error);
+
+static ssize_t textid_show(struct device *dev, struct device_attribute *attr,
+ char *buf);
+static ssize_t textid_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count);
+static DEVICE_ATTR_RW(textid);
+
+static ssize_t remaining_steps_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static ssize_t remaining_steps_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count);
+static DEVICE_ATTR_RW(remaining_steps);
+
static struct attribute *visorchipset_install_attrs[] = {
&dev_attr_toolaction.attr,
&dev_attr_boottotool.attr,
+ &dev_attr_error.attr,
+ &dev_attr_textid.attr,
+ &dev_attr_remaining_steps.attr,
NULL
};
@@ -407,6 +418,91 @@ ssize_t boottotool_store(struct device *dev, struct device_attribute *attr,
} else
return -EIO;
}
+
+static ssize_t error_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ u32 error;
+
+ visorchannel_read(ControlVm_channel, offsetof(
+ ULTRA_CONTROLVM_CHANNEL_PROTOCOL, InstallationError),
+ &error, sizeof(u32));
+ return scnprintf(buf, PAGE_SIZE, "%i\n", error);
+}
+
+static ssize_t error_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ u32 error;
+
+ if (sscanf(buf, "%i\n", &error) == 1) {
+ if (visorchannel_write(ControlVm_channel,
+ offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
+ InstallationError),
+ &error, sizeof(u32)) == 1) {
+ return count;
+ }
+ }
+ return -EIO;
+}
+
+static ssize_t textid_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ u32 textId;
+
+ visorchannel_read(ControlVm_channel, offsetof(
+ ULTRA_CONTROLVM_CHANNEL_PROTOCOL, InstallationTextId),
+ &textId, sizeof(u32));
+ return scnprintf(buf, PAGE_SIZE, "%i\n", textId);
+}
+
+static ssize_t textid_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ u32 textId;
+
+ if (sscanf(buf, "%i\n", &textId) == 1) {
+ if (visorchannel_write(ControlVm_channel,
+ offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
+ InstallationTextId),
+ &textId, sizeof(u32)) == 1) {
+ return count;
+ }
+ }
+ return -EIO;
+}
+
+
+static ssize_t remaining_steps_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u16 remainingSteps;
+
+ visorchannel_read(ControlVm_channel,
+ offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
+ InstallationRemainingSteps),
+ &remainingSteps,
+ sizeof(u16));
+ return scnprintf(buf, PAGE_SIZE, "%hu\n", remainingSteps);
+}
+
+static ssize_t remaining_steps_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ u16 remainingSteps;
+
+ if (sscanf(buf, "%hu\n", &remainingSteps) == 1) {
+ if (visorchannel_write(ControlVm_channel,
+ offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
+ InstallationRemainingSteps),
+ &remainingSteps, sizeof(u16)) == 1) {
+ return count;
+ }
+ }
+ return -EIO;
+}
+
static void
show_partition_property(struct seq_file *f, void *ctx, int property)
{
@@ -2326,118 +2422,6 @@ visorchipset_proc_read_writeonly(struct file *file, char __user *buf,
return 0;
}
-/**
- * Reads the InstallationError, InstallationTextId,
- * InstallationRemainingSteps fields of ControlVMChannel.
- */
-static ssize_t
-proc_read_installer(struct file *file, char __user *buf,
- size_t len, loff_t *offset)
-{
- int length = 0;
- U16 remainingSteps;
- U32 error, textId;
- char *vbuf;
- loff_t pos = *offset;
-
- if (pos < 0)
- return -EINVAL;
-
- if (pos > 0 || !len)
- return 0;
-
- vbuf = kzalloc(len, GFP_KERNEL);
- if (!vbuf)
- return -ENOMEM;
-
- visorchannel_read(ControlVm_channel,
- offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
- InstallationRemainingSteps), &remainingSteps,
- sizeof(U16));
- visorchannel_read(ControlVm_channel,
- offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
- InstallationError), &error, sizeof(U32));
- visorchannel_read(ControlVm_channel,
- offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
- InstallationTextId), &textId, sizeof(U32));
-
- length = sprintf(vbuf, "%u %u %u\n", remainingSteps, error, textId);
- if (copy_to_user(buf, vbuf, length)) {
- kfree(vbuf);
- return -EFAULT;
- }
-
- kfree(vbuf);
- *offset += length;
- return length;
-}
-
-/**
- * Writes to the InstallationError, InstallationTextId,
- * InstallationRemainingSteps fields of
- * ControlVMChannel.
- * Input: RemainingSteps Error TextId
- * Limit 32 characters input
- */
-#define UINT16_MAX (65535U)
-#define UINT32_MAX (4294967295U)
-static ssize_t
-proc_write_installer(struct file *file,
- const char __user *buffer, size_t count, loff_t *ppos)
-{
- char buf[32];
- U16 remainingSteps;
- U32 error, textId;
-
- /* Check to make sure there is no buffer overflow */
- if (count > (sizeof(buf) - 1))
- return -EINVAL;
-
- if (copy_from_user(buf, buffer, count)) {
- WARN(1, "Error copying from user space\n");
- return -EFAULT;
- }
-
- if (sscanf(buf, "%hu %i %i", &remainingSteps, &error, &textId) != 3) {
- remainingSteps = UINT16_MAX;
- error = UINT32_MAX;
- textId = UINT32_MAX;
- }
-
- if (remainingSteps != UINT16_MAX) {
- if (visorchannel_write
- (ControlVm_channel,
- offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
- InstallationRemainingSteps), &remainingSteps,
- sizeof(U16)) < 0)
- WARN(1, "Installation Status Write Failed - Write function error - RemainingSteps = %d\n",
- remainingSteps);
- }
-
- if (error != UINT32_MAX) {
- if (visorchannel_write
- (ControlVm_channel,
- offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
- InstallationError), &error, sizeof(U32)) < 0)
- WARN(1, "Installation Status Write Failed - Write function error - Error = %d\n",
- error);
- }
-
- if (textId != UINT32_MAX) {
- if (visorchannel_write
- (ControlVm_channel,
- offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL,
- InstallationTextId), &textId, sizeof(U32)) < 0)
- WARN(1, "Installation Status Write Failed - Write function error - TextId = %d\n",
- textId);
- }
-
- /* So this function isn't called multiple times, must return
- * size of buffer
- */
- return count;
-}
-
static const struct file_operations chipset_proc_fops = {
.owner = THIS_MODULE,
.read = visorchipset_proc_read_writeonly,
@@ -2449,7 +2433,6 @@ visorchipset_init(void)
{
int rc = 0, x = 0;
char s[64];
- struct proc_dir_entry *installer_file;
HOSTADDRESS addr;
if (!unisys_spar_platform)
@@ -2523,10 +2506,6 @@ visorchipset_init(void)
PartitionPropertyNames,
&show_partition_property);
- /* Setup Installation fields */
- installer_file = proc_create("installer", 0644, ProcDir,
- &proc_installer_fops);
-
memset(&g_DiagMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER));
chipset_proc_dir = proc_create(VISORCHIPSET_CHIPSET_PROC_ENTRY_FN,
generated by cgit v1.2.3 (git 2.0.4) at 2024-12-26 17:14:47 +0000