From b210d7506f416e7250eb52c314e5ed08928639dd Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Tue, 7 Aug 2012 00:03:56 +0300 Subject: [PATCH] mei: name space for mei device state 1. add MEI_DEV_ prefix for mei device state enums 2. rename mei_state to dev_state 3. add constant to string translation for debug purposes Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/init.c | 54 ++++++++++++++++++++++++------------ drivers/misc/mei/interrupt.c | 22 +++++++-------- drivers/misc/mei/iorw.c | 4 +-- drivers/misc/mei/main.c | 24 ++++++++-------- drivers/misc/mei/mei_dev.h | 22 ++++++++------- drivers/misc/mei/wd.c | 6 ++-- 6 files changed, 77 insertions(+), 55 deletions(-) diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index 58b3bf47c8eb..cd6a7f1ff916 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -24,6 +24,25 @@ #include "interface.h" #include +const char *mei_dev_state_str(int state) +{ +#define MEI_DEV_STATE(state) case MEI_DEV_##state: return #state + switch (state) { + MEI_DEV_STATE(INITIALIZING); + MEI_DEV_STATE(INIT_CLIENTS); + MEI_DEV_STATE(ENABLED); + MEI_DEV_STATE(RESETING); + MEI_DEV_STATE(DISABLED); + MEI_DEV_STATE(RECOVERING_FROM_RESET); + MEI_DEV_STATE(POWER_DOWN); + MEI_DEV_STATE(POWER_UP); + default: + return "unkown"; + } +#undef MEI_DEV_STATE +} + + const uuid_le mei_amthi_guid = UUID_LE(0x12f80028, 0xb4b7, 0x4b2d, 0xac, 0xa8, 0x46, 0xe0, 0xff, 0x65, 0x81, 0x4c); @@ -123,7 +142,7 @@ struct mei_device *mei_device_init(struct pci_dev *pdev) mutex_init(&dev->device_lock); init_waitqueue_head(&dev->wait_recvd_msg); init_waitqueue_head(&dev->wait_stop_wd); - dev->mei_state = MEI_INITIALIZING; + dev->dev_state = MEI_DEV_INITIALIZING; dev->iamthif_state = MEI_IAMTHIF_IDLE; dev->wd_interface_reg = false; @@ -182,7 +201,7 @@ int mei_hw_init(struct mei_device *dev) } if (err <= 0 && !dev->recvd_msg) { - dev->mei_state = MEI_DISABLED; + dev->dev_state = MEI_DEV_DISABLED; dev_dbg(&dev->pdev->dev, "wait_event_interruptible_timeout failed" "on wait for ME to turn on ME_RDY.\n"); @@ -192,7 +211,7 @@ int mei_hw_init(struct mei_device *dev) if (!(((dev->host_hw_state & H_RDY) == H_RDY) && ((dev->me_hw_state & ME_RDY_HRA) == ME_RDY_HRA))) { - dev->mei_state = MEI_DISABLED; + dev->dev_state = MEI_DEV_DISABLED; dev_dbg(&dev->pdev->dev, "host_hw_state = 0x%08x, me_hw_state = 0x%08x.\n", dev->host_hw_state, dev->me_hw_state); @@ -258,15 +277,15 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) struct mei_cl_cb *cb_next = NULL; bool unexpected; - if (dev->mei_state == MEI_RECOVERING_FROM_RESET) { + if (dev->dev_state == MEI_DEV_RECOVERING_FROM_RESET) { dev->need_reset = true; return; } - unexpected = (dev->mei_state != MEI_INITIALIZING && - dev->mei_state != MEI_DISABLED && - dev->mei_state != MEI_POWER_DOWN && - dev->mei_state != MEI_POWER_UP); + unexpected = (dev->dev_state != MEI_DEV_INITIALIZING && + dev->dev_state != MEI_DEV_DISABLED && + dev->dev_state != MEI_DEV_POWER_DOWN && + dev->dev_state != MEI_DEV_POWER_UP); dev->host_hw_state = mei_hcsr_read(dev); @@ -285,10 +304,10 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) dev->need_reset = false; - if (dev->mei_state != MEI_INITIALIZING) { - if (dev->mei_state != MEI_DISABLED && - dev->mei_state != MEI_POWER_DOWN) - dev->mei_state = MEI_RESETING; + if (dev->dev_state != MEI_DEV_INITIALIZING) { + if (dev->dev_state != MEI_DEV_DISABLED && + dev->dev_state != MEI_DEV_POWER_DOWN) + dev->dev_state = MEI_DEV_RESETING; list_for_each_entry_safe(cl_pos, cl_next, &dev->file_list, link) { @@ -322,7 +341,8 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) dev->host_hw_state, dev->me_hw_state); if (unexpected) - dev_warn(&dev->pdev->dev, "unexpected reset.\n"); + dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n", + mei_dev_state_str(dev->dev_state)); /* Wake up all readings so they can be interrupted */ list_for_each_entry_safe(cl_pos, cl_next, &dev->file_list, link) { @@ -371,7 +391,7 @@ void mei_host_start_message(struct mei_device *dev) if (mei_write_message(dev, mei_hdr, (unsigned char *)host_start_req, mei_hdr->length)) { dev_dbg(&dev->pdev->dev, "write send version message to FW fail.\n"); - dev->mei_state = MEI_RESETING; + dev->dev_state = MEI_DEV_RESETING; mei_reset(dev, 1); } dev->init_clients_state = MEI_START_MESSAGE; @@ -403,7 +423,7 @@ void mei_host_enum_clients_message(struct mei_device *dev) host_enum_req->hbm_cmd = HOST_ENUM_REQ_CMD; if (mei_write_message(dev, mei_hdr, (unsigned char *)host_enum_req, mei_hdr->length)) { - dev->mei_state = MEI_RESETING; + dev->dev_state = MEI_DEV_RESETING; dev_dbg(&dev->pdev->dev, "write send enumeration request message to FW fail.\n"); mei_reset(dev, 1); } @@ -444,7 +464,7 @@ void mei_allocate_me_clients_storage(struct mei_device *dev) sizeof(struct mei_me_client), GFP_KERNEL); if (!clients) { dev_dbg(&dev->pdev->dev, "memory allocation for ME clients failed.\n"); - dev->mei_state = MEI_RESETING; + dev->dev_state = MEI_DEV_RESETING; mei_reset(dev, 1); return ; } @@ -490,7 +510,7 @@ int mei_host_client_properties(struct mei_device *dev) if (mei_write_message(dev, mei_header, (unsigned char *)host_cli_req, mei_header->length)) { - dev->mei_state = MEI_RESETING; + dev->dev_state = MEI_DEV_RESETING; dev_dbg(&dev->pdev->dev, "write send enumeration request message to FW fail.\n"); mei_reset(dev, 1); return -EIO; diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index c6ffbbe5a6c0..94370d26ed45 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -633,7 +633,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev, if (version_res->host_version_supported) { dev->version.major_version = HBM_MAJOR_VERSION; dev->version.minor_version = HBM_MINOR_VERSION; - if (dev->mei_state == MEI_INIT_CLIENTS && + if (dev->dev_state == MEI_DEV_INIT_CLIENTS && dev->init_clients_state == MEI_START_MESSAGE) { dev->init_clients_timer = 0; mei_host_enum_clients_message(dev); @@ -707,7 +707,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev, dev->me_clients[dev->me_client_presentation_num].props = props_res->client_properties; - if (dev->mei_state == MEI_INIT_CLIENTS && + if (dev->dev_state == MEI_DEV_INIT_CLIENTS && dev->init_clients_state == MEI_CLIENT_PROPERTIES_MESSAGE) { dev->me_client_index++; @@ -734,7 +734,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev, * Client ID 2 - Reserved for AMTHI */ bitmap_set(dev->host_clients_map, 0, 3); - dev->mei_state = MEI_ENABLED; + dev->dev_state = MEI_DEV_ENABLED; /* if wd initialization fails, initialization the AMTHI client, * otherwise the AMTHI client will be initialized after the WD client connect response @@ -759,7 +759,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev, case HOST_ENUM_RES_CMD: enum_res = (struct hbm_host_enum_response *) mei_msg; memcpy(dev->me_clients_map, enum_res->valid_addresses, 32); - if (dev->mei_state == MEI_INIT_CLIENTS && + if (dev->dev_state == MEI_DEV_INIT_CLIENTS && dev->init_clients_state == MEI_ENUM_CLIENTS_MESSAGE) { dev->init_clients_timer = 0; dev->me_client_presentation_num = 0; @@ -776,7 +776,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev, break; case HOST_STOP_RES_CMD: - dev->mei_state = MEI_DISABLED; + dev->dev_state = MEI_DEV_DISABLED; dev_dbg(&dev->pdev->dev, "resetting because of FW stop response.\n"); mei_reset(dev, 1); break; @@ -1240,7 +1240,7 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list, *slots -= dev->extra_write_index; dev->extra_write_index = 0; } - if (dev->mei_state == MEI_ENABLED) { + if (dev->dev_state == MEI_DEV_ENABLED) { if (dev->wd_pending && mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) { if (mei_wd_send(dev)) @@ -1361,8 +1361,8 @@ void mei_timer(struct work_struct *work) mutex_lock(&dev->device_lock); - if (dev->mei_state != MEI_ENABLED) { - if (dev->mei_state == MEI_INIT_CLIENTS) { + if (dev->dev_state != MEI_DEV_ENABLED) { + if (dev->dev_state == MEI_DEV_INIT_CLIENTS) { if (dev->init_clients_timer) { if (--dev->init_clients_timer == 0) { dev_dbg(&dev->pdev->dev, "IMEI reset due to init clients timeout ,init clients state = %d.\n", @@ -1484,8 +1484,8 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id) /* check if ME wants a reset */ if ((dev->me_hw_state & ME_RDY_HRA) == 0 && - dev->mei_state != MEI_RESETING && - dev->mei_state != MEI_INITIALIZING) { + dev->dev_state != MEI_DEV_RESETING && + dev->dev_state != MEI_DEV_INITIALIZING) { dev_dbg(&dev->pdev->dev, "FW not ready.\n"); mei_reset(dev, 1); mutex_unlock(&dev->device_lock); @@ -1498,7 +1498,7 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id) dev_dbg(&dev->pdev->dev, "we need to start the dev.\n"); dev->host_hw_state |= (H_IE | H_IG | H_RDY); mei_hcsr_set(dev); - dev->mei_state = MEI_INIT_CLIENTS; + dev->dev_state = MEI_DEV_INIT_CLIENTS; dev_dbg(&dev->pdev->dev, "link is established start sending messages.\n"); /* link is established * start sending messages. diff --git a/drivers/misc/mei/iorw.c b/drivers/misc/mei/iorw.c index 9187d852ef9c..fcba98eb892e 100644 --- a/drivers/misc/mei/iorw.c +++ b/drivers/misc/mei/iorw.c @@ -108,7 +108,7 @@ int mei_ioctl_connect_client(struct file *file, cb->major_file_operations = MEI_IOCTL; - if (dev->mei_state != MEI_ENABLED) { + if (dev->dev_state != MEI_DEV_ENABLED) { rets = -ENODEV; goto end; } @@ -402,7 +402,7 @@ int mei_start_read(struct mei_device *dev, struct mei_cl *cl) if (cl->state != MEI_FILE_CONNECTED) return -ENODEV; - if (dev->mei_state != MEI_ENABLED) + if (dev->dev_state != MEI_DEV_ENABLED) return -ENODEV; dev_dbg(&dev->pdev->dev, "check if read is pending.\n"); diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index dea65c2c9203..5c557dd129d6 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -232,9 +232,9 @@ static int mei_open(struct inode *inode, struct file *file) goto out_unlock; err = -ENODEV; - if (dev->mei_state != MEI_ENABLED) { - dev_dbg(&dev->pdev->dev, "mei_state != MEI_ENABLED mei_state= %d\n", - dev->mei_state); + if (dev->dev_state != MEI_DEV_ENABLED) { + dev_dbg(&dev->pdev->dev, "dev_state != MEI_ENABLED dev_state = %s\n", + mei_dev_state_str(dev->dev_state)); goto out_unlock; } err = -EMFILE; @@ -384,7 +384,7 @@ static ssize_t mei_read(struct file *file, char __user *ubuf, dev = cl->dev; mutex_lock(&dev->device_lock); - if (dev->mei_state != MEI_ENABLED) { + if (dev->dev_state != MEI_DEV_ENABLED) { rets = -ENODEV; goto out; } @@ -538,7 +538,7 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf, mutex_lock(&dev->device_lock); - if (dev->mei_state != MEI_ENABLED) { + if (dev->dev_state != MEI_DEV_ENABLED) { mutex_unlock(&dev->device_lock); return -ENODEV; } @@ -613,7 +613,7 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf, rets = -ENOMEM; goto unlock_dev; } - if (dev->mei_state != MEI_ENABLED) { + if (dev->dev_state != MEI_DEV_ENABLED) { rets = -ENODEV; goto unlock_dev; } @@ -769,7 +769,7 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data) dev_dbg(&dev->pdev->dev, "IOCTL cmd = 0x%x", cmd); mutex_lock(&dev->device_lock); - if (dev->mei_state != MEI_ENABLED) { + if (dev->dev_state != MEI_DEV_ENABLED) { rets = -ENODEV; goto out; } @@ -848,7 +848,7 @@ static unsigned int mei_poll(struct file *file, poll_table *wait) mutex_lock(&dev->device_lock); - if (dev->mei_state != MEI_ENABLED) + if (dev->dev_state != MEI_DEV_ENABLED) goto out; @@ -1118,9 +1118,9 @@ static int mei_pci_suspend(struct device *device) /* Stop watchdog if exists */ err = mei_wd_stop(dev, true); /* Set new mei state */ - if (dev->mei_state == MEI_ENABLED || - dev->mei_state == MEI_RECOVERING_FROM_RESET) { - dev->mei_state = MEI_POWER_DOWN; + if (dev->dev_state == MEI_DEV_ENABLED || + dev->dev_state == MEI_DEV_RECOVERING_FROM_RESET) { + dev->dev_state = MEI_DEV_POWER_DOWN; mei_reset(dev, 0); } mutex_unlock(&dev->device_lock); @@ -1162,7 +1162,7 @@ static int mei_pci_resume(struct device *device) } mutex_lock(&dev->device_lock); - dev->mei_state = MEI_POWER_UP; + dev->dev_state = MEI_DEV_POWER_UP; mei_reset(dev, 1); mutex_unlock(&dev->device_lock); diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 1ff1fc678fb3..35d0538a5974 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -78,17 +78,19 @@ enum file_state { }; /* MEI device states */ -enum mei_states { - MEI_INITIALIZING = 0, - MEI_INIT_CLIENTS, - MEI_ENABLED, - MEI_RESETING, - MEI_DISABLED, - MEI_RECOVERING_FROM_RESET, - MEI_POWER_DOWN, - MEI_POWER_UP +enum mei_dev_state { + MEI_DEV_INITIALIZING = 0, + MEI_DEV_INIT_CLIENTS, + MEI_DEV_ENABLED, + MEI_DEV_RESETING, + MEI_DEV_DISABLED, + MEI_DEV_RECOVERING_FROM_RESET, + MEI_DEV_POWER_DOWN, + MEI_DEV_POWER_UP }; +const char *mei_dev_state_str(int state); + /* init clients states*/ enum mei_init_clients_states { MEI_START_MESSAGE = 0, @@ -218,7 +220,7 @@ struct mei_device { /* * mei device states */ - enum mei_states mei_state; + enum mei_dev_state dev_state; enum mei_init_clients_states init_clients_state; u16 init_clients_timer; bool stop; diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c index 912319e4fa90..3006cca34b16 100644 --- a/drivers/misc/mei/wd.c +++ b/drivers/misc/mei/wd.c @@ -202,10 +202,10 @@ static int mei_wd_ops_start(struct watchdog_device *wd_dev) mutex_lock(&dev->device_lock); - if (dev->mei_state != MEI_ENABLED) { + if (dev->dev_state != MEI_DEV_ENABLED) { dev_dbg(&dev->pdev->dev, - "wd: mei_state != MEI_ENABLED mei_state = %d\n", - dev->mei_state); + "wd: dev_state != MEI_DEV_ENABLED dev_state = %s\n", + mei_dev_state_str(dev->dev_state)); goto end_unlock; } -- GitLab