diff options
author | David S. Miller <davem@davemloft.net> | 2018-04-21 23:31:52 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2018-04-21 23:32:48 +0300 |
commit | e0ada51db907ed2db5d46ad7ff86a8b5df68e59b (patch) | |
tree | 858966cee69ad8a50e59c4e02dcbde6ba2916151 /drivers/platform/chrome/cros_ec_sysfs.c | |
parent | 0638eb573cde5888c0886c7f35da604e5db209a6 (diff) | |
parent | 83beed7b2b26f232d782127792dd0cd4362fdc41 (diff) | |
download | linux-e0ada51db907ed2db5d46ad7ff86a8b5df68e59b.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts were simple overlapping changes in microchip
driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/platform/chrome/cros_ec_sysfs.c')
-rw-r--r-- | drivers/platform/chrome/cros_ec_sysfs.c | 141 |
1 files changed, 102 insertions, 39 deletions
diff --git a/drivers/platform/chrome/cros_ec_sysfs.c b/drivers/platform/chrome/cros_ec_sysfs.c index da0a719d32f7..5a6db3fe213a 100644 --- a/drivers/platform/chrome/cros_ec_sysfs.c +++ b/drivers/platform/chrome/cros_ec_sysfs.c @@ -34,10 +34,12 @@ #include <linux/types.h> #include <linux/uaccess.h> +#define to_cros_ec_dev(dev) container_of(dev, struct cros_ec_dev, class_dev) + /* Accessor functions */ -static ssize_t show_ec_reboot(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t reboot_show(struct device *dev, + struct device_attribute *attr, char *buf) { int count = 0; @@ -48,9 +50,9 @@ static ssize_t show_ec_reboot(struct device *dev, return count; } -static ssize_t store_ec_reboot(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t reboot_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { static const struct { const char * const str; @@ -70,8 +72,7 @@ static ssize_t store_ec_reboot(struct device *dev, int got_cmd = 0, offset = 0; int i; int ret; - struct cros_ec_dev *ec = container_of(dev, - struct cros_ec_dev, class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); msg = kmalloc(sizeof(*msg) + sizeof(*param), GFP_KERNEL); if (!msg) @@ -114,22 +115,16 @@ static ssize_t store_ec_reboot(struct device *dev, msg->command = EC_CMD_REBOOT_EC + ec->cmd_offset; msg->outsize = sizeof(*param); msg->insize = 0; - ret = cros_ec_cmd_xfer(ec->ec_dev, msg); - if (ret < 0) { + ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg); + if (ret < 0) count = ret; - goto exit; - } - if (msg->result != EC_RES_SUCCESS) { - dev_dbg(ec->dev, "EC result %d\n", msg->result); - count = -EINVAL; - } exit: kfree(msg); return count; } -static ssize_t show_ec_version(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t version_show(struct device *dev, + struct device_attribute *attr, char *buf) { static const char * const image_names[] = {"unknown", "RO", "RW"}; struct ec_response_get_version *r_ver; @@ -138,8 +133,7 @@ static ssize_t show_ec_version(struct device *dev, struct cros_ec_command *msg; int ret; int count = 0; - struct cros_ec_dev *ec = container_of(dev, - struct cros_ec_dev, class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); msg = kmalloc(sizeof(*msg) + EC_HOST_PARAM_SIZE, GFP_KERNEL); if (!msg) @@ -150,17 +144,11 @@ static ssize_t show_ec_version(struct device *dev, msg->command = EC_CMD_GET_VERSION + ec->cmd_offset; msg->insize = sizeof(*r_ver); msg->outsize = 0; - ret = cros_ec_cmd_xfer(ec->ec_dev, msg); + ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg); if (ret < 0) { count = ret; goto exit; } - if (msg->result != EC_RES_SUCCESS) { - count = scnprintf(buf, PAGE_SIZE, - "ERROR: EC returned %d\n", msg->result); - goto exit; - } - r_ver = (struct ec_response_get_version *)msg->data; /* Strings should be null-terminated, but let's be sure. */ r_ver->version_string_ro[sizeof(r_ver->version_string_ro) - 1] = '\0'; @@ -237,14 +225,13 @@ exit: return count; } -static ssize_t show_ec_flashinfo(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t flashinfo_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct ec_response_flash_info *resp; struct cros_ec_command *msg; int ret; - struct cros_ec_dev *ec = container_of(dev, - struct cros_ec_dev, class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); msg = kmalloc(sizeof(*msg) + sizeof(*resp), GFP_KERNEL); if (!msg) @@ -255,14 +242,9 @@ static ssize_t show_ec_flashinfo(struct device *dev, msg->command = EC_CMD_FLASH_INFO + ec->cmd_offset; msg->insize = sizeof(*resp); msg->outsize = 0; - ret = cros_ec_cmd_xfer(ec->ec_dev, msg); + ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg); if (ret < 0) goto exit; - if (msg->result != EC_RES_SUCCESS) { - ret = scnprintf(buf, PAGE_SIZE, - "ERROR: EC returned %d\n", msg->result); - goto exit; - } resp = (struct ec_response_flash_info *)msg->data; @@ -276,21 +258,102 @@ exit: return ret; } +/* Keyboard wake angle control */ +static ssize_t kb_wake_angle_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct cros_ec_dev *ec = to_cros_ec_dev(dev); + struct ec_response_motion_sense *resp; + struct ec_params_motion_sense *param; + struct cros_ec_command *msg; + int ret; + + msg = kmalloc(sizeof(*msg) + EC_HOST_PARAM_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + param = (struct ec_params_motion_sense *)msg->data; + msg->command = EC_CMD_MOTION_SENSE_CMD + ec->cmd_offset; + msg->version = 2; + param->cmd = MOTIONSENSE_CMD_KB_WAKE_ANGLE; + param->kb_wake_angle.data = EC_MOTION_SENSE_NO_VALUE; + msg->outsize = sizeof(*param); + msg->insize = sizeof(*resp); + + ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg); + if (ret < 0) + goto exit; + + resp = (struct ec_response_motion_sense *)msg->data; + ret = scnprintf(buf, PAGE_SIZE, "%d\n", resp->kb_wake_angle.ret); +exit: + kfree(msg); + return ret; +} + +static ssize_t kb_wake_angle_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct cros_ec_dev *ec = to_cros_ec_dev(dev); + struct ec_params_motion_sense *param; + struct cros_ec_command *msg; + u16 angle; + int ret; + + ret = kstrtou16(buf, 0, &angle); + if (ret) + return ret; + + msg = kmalloc(sizeof(*msg) + EC_HOST_PARAM_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + param = (struct ec_params_motion_sense *)msg->data; + msg->command = EC_CMD_MOTION_SENSE_CMD + ec->cmd_offset; + msg->version = 2; + param->cmd = MOTIONSENSE_CMD_KB_WAKE_ANGLE; + param->kb_wake_angle.data = angle; + msg->outsize = sizeof(*param); + msg->insize = sizeof(struct ec_response_motion_sense); + + ret = cros_ec_cmd_xfer_status(ec->ec_dev, msg); + kfree(msg); + if (ret < 0) + return ret; + return count; +} + /* Module initialization */ -static DEVICE_ATTR(reboot, S_IWUSR | S_IRUGO, show_ec_reboot, store_ec_reboot); -static DEVICE_ATTR(version, S_IRUGO, show_ec_version, NULL); -static DEVICE_ATTR(flashinfo, S_IRUGO, show_ec_flashinfo, NULL); +static DEVICE_ATTR_RW(reboot); +static DEVICE_ATTR_RO(version); +static DEVICE_ATTR_RO(flashinfo); +static DEVICE_ATTR_RW(kb_wake_angle); static struct attribute *__ec_attrs[] = { + &dev_attr_kb_wake_angle.attr, &dev_attr_reboot.attr, &dev_attr_version.attr, &dev_attr_flashinfo.attr, NULL, }; +static umode_t cros_ec_ctrl_visible(struct kobject *kobj, + struct attribute *a, int n) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); + + if (a == &dev_attr_kb_wake_angle.attr && !ec->has_kb_wake_angle) + return 0; + + return a->mode; +} + struct attribute_group cros_ec_attr_group = { .attrs = __ec_attrs, + .is_visible = cros_ec_ctrl_visible, }; EXPORT_SYMBOL(cros_ec_attr_group); |