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icnss.c
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icnss.c
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/* Copyright (c) 2015-2019, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#define pr_fmt(fmt) "icnss: " fmt
#include <asm/dma-iommu.h>
#include <linux/of_address.h>
#include <linux/clk.h>
#include <linux/iommu.h>
#include <linux/export.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/qmi_encdec.h>
#include <linux/ipc_logging.h>
#include <linux/thread_info.h>
#include <linux/uaccess.h>
#include <linux/qpnp/qpnp-adc.h>
#include <linux/etherdevice.h>
#include <soc/qcom/memory_dump.h>
#include <soc/qcom/icnss.h>
#include <soc/qcom/msm_qmi_interface.h>
#include <soc/qcom/secure_buffer.h>
#include <soc/qcom/subsystem_notif.h>
#include <soc/qcom/subsystem_restart.h>
#include <soc/qcom/service-locator.h>
#include <soc/qcom/service-notifier.h>
#include <soc/qcom/socinfo.h>
#include <soc/qcom/ramdump.h>
#include "wlan_firmware_service_v01.h"
#ifdef CONFIG_ICNSS_DEBUG
unsigned long qmi_timeout = 10000;
module_param(qmi_timeout, ulong, 0600);
#define WLFW_TIMEOUT_MS qmi_timeout
#else
#define WLFW_TIMEOUT_MS 10000
#endif
#define WLFW_SERVICE_INS_ID_V01 0
#define WLFW_CLIENT_ID 0x4b4e454c
#define MAX_PROP_SIZE 32
#define NUM_LOG_PAGES 10
#define NUM_LOG_LONG_PAGES 4
#define ICNSS_MAGIC 0x5abc5abc
#define ICNSS_SERVICE_LOCATION_CLIENT_NAME "ICNSS-WLAN"
#define ICNSS_WLAN_SERVICE_NAME "wlan/fw"
#define ICNSS_THRESHOLD_HIGH 3600000
#define ICNSS_THRESHOLD_LOW 3450000
#define ICNSS_THRESHOLD_GUARD 20000
#define ICNSS_MAX_PROBE_CNT 2
#define PROBE_TIMEOUT 5000
#define icnss_ipc_log_string(_x...) do { \
if (icnss_ipc_log_context) \
ipc_log_string(icnss_ipc_log_context, _x); \
} while (0)
#define icnss_ipc_log_long_string(_x...) do { \
if (icnss_ipc_log_long_context) \
ipc_log_string(icnss_ipc_log_long_context, _x); \
} while (0)
#define icnss_pr_err(_fmt, ...) do { \
printk("%s" pr_fmt(_fmt), KERN_ERR, ##__VA_ARGS__); \
icnss_ipc_log_string("%s" pr_fmt(_fmt), "", \
##__VA_ARGS__); \
} while (0)
#define icnss_pr_warn(_fmt, ...) do { \
printk("%s" pr_fmt(_fmt), KERN_WARNING, ##__VA_ARGS__); \
icnss_ipc_log_string("%s" pr_fmt(_fmt), "", \
##__VA_ARGS__); \
} while (0)
#define icnss_pr_info(_fmt, ...) do { \
printk("%s" pr_fmt(_fmt), KERN_INFO, ##__VA_ARGS__); \
icnss_ipc_log_string("%s" pr_fmt(_fmt), "", \
##__VA_ARGS__); \
} while (0)
#if defined(CONFIG_DYNAMIC_DEBUG)
#define icnss_pr_dbg(_fmt, ...) do { \
pr_debug(_fmt, ##__VA_ARGS__); \
icnss_ipc_log_string(pr_fmt(_fmt), ##__VA_ARGS__); \
} while (0)
#define icnss_pr_vdbg(_fmt, ...) do { \
pr_debug(_fmt, ##__VA_ARGS__); \
icnss_ipc_log_long_string(pr_fmt(_fmt), ##__VA_ARGS__); \
} while (0)
#elif defined(DEBUG)
#define icnss_pr_dbg(_fmt, ...) do { \
printk("%s" pr_fmt(_fmt), KERN_DEBUG, ##__VA_ARGS__); \
icnss_ipc_log_string("%s" pr_fmt(_fmt), "", \
##__VA_ARGS__); \
} while (0)
#define icnss_pr_vdbg(_fmt, ...) do { \
printk("%s" pr_fmt(_fmt), KERN_DEBUG, ##__VA_ARGS__); \
icnss_ipc_log_long_string("%s" pr_fmt(_fmt), "", \
##__VA_ARGS__); \
} while (0)
#else
#define icnss_pr_dbg(_fmt, ...) do { \
no_printk("%s" pr_fmt(_fmt), KERN_DEBUG, ##__VA_ARGS__); \
icnss_ipc_log_string("%s" pr_fmt(_fmt), "", \
##__VA_ARGS__); \
} while (0)
#define icnss_pr_vdbg(_fmt, ...) do { \
no_printk("%s" pr_fmt(_fmt), KERN_DEBUG, ##__VA_ARGS__); \
icnss_ipc_log_long_string("%s" pr_fmt(_fmt), "", \
##__VA_ARGS__); \
} while (0)
#endif
#ifdef CONFIG_ICNSS_DEBUG
#define ICNSS_ASSERT(_condition) do { \
if (!(_condition)) { \
icnss_pr_err("ASSERT at line %d\n", __LINE__); \
BUG_ON(1); \
} \
} while (0)
bool ignore_qmi_timeout;
#define ICNSS_QMI_ASSERT() ICNSS_ASSERT(ignore_qmi_timeout)
#else
#define ICNSS_ASSERT(_condition) do { } while (0)
#define ICNSS_QMI_ASSERT() do { } while (0)
#endif
#define QMI_ERR_PLAT_CCPM_CLK_INIT_FAILED 0x77
enum icnss_debug_quirks {
HW_ALWAYS_ON,
HW_DEBUG_ENABLE,
SKIP_QMI,
HW_ONLY_TOP_LEVEL_RESET,
RECOVERY_DISABLE,
SSR_ONLY,
PDR_ONLY,
VBATT_DISABLE,
FW_REJUVENATE_ENABLE,
};
#define ICNSS_QUIRKS_DEFAULT (BIT(VBATT_DISABLE) | \
BIT(FW_REJUVENATE_ENABLE))
unsigned long quirks = ICNSS_QUIRKS_DEFAULT;
module_param(quirks, ulong, 0600);
uint64_t dynamic_feature_mask = QMI_WLFW_FW_REJUVENATE_V01;
module_param(dynamic_feature_mask, ullong, 0600);
void *icnss_ipc_log_context;
void *icnss_ipc_log_long_context;
#define ICNSS_EVENT_PENDING 2989
#define ICNSS_EVENT_SYNC BIT(0)
#define ICNSS_EVENT_UNINTERRUPTIBLE BIT(1)
#define ICNSS_EVENT_SYNC_UNINTERRUPTIBLE (ICNSS_EVENT_UNINTERRUPTIBLE | \
ICNSS_EVENT_SYNC)
enum icnss_driver_event_type {
ICNSS_DRIVER_EVENT_SERVER_ARRIVE,
ICNSS_DRIVER_EVENT_SERVER_EXIT,
ICNSS_DRIVER_EVENT_FW_READY_IND,
ICNSS_DRIVER_EVENT_REGISTER_DRIVER,
ICNSS_DRIVER_EVENT_UNREGISTER_DRIVER,
ICNSS_DRIVER_EVENT_PD_SERVICE_DOWN,
ICNSS_DRIVER_EVENT_MAX,
};
enum icnss_msa_perm {
ICNSS_MSA_PERM_HLOS_ALL = 0,
ICNSS_MSA_PERM_WLAN_HW_RW = 1,
ICNSS_MSA_PERM_DUMP_COLLECT = 2,
ICNSS_MSA_PERM_MAX,
};
#define ICNSS_MAX_VMIDS 4
struct icnss_mem_region_info {
uint64_t reg_addr;
uint32_t size;
uint8_t secure_flag;
enum icnss_msa_perm perm;
};
struct icnss_msa_perm_list_t {
int vmids[ICNSS_MAX_VMIDS];
int perms[ICNSS_MAX_VMIDS];
int nelems;
};
struct icnss_msa_perm_list_t msa_perm_secure_list[ICNSS_MSA_PERM_MAX] = {
[ICNSS_MSA_PERM_HLOS_ALL] = {
.vmids = {VMID_HLOS},
.perms = {PERM_READ | PERM_WRITE | PERM_EXEC},
.nelems = 1,
},
[ICNSS_MSA_PERM_WLAN_HW_RW] = {
.vmids = {VMID_MSS_MSA, VMID_WLAN},
.perms = {PERM_READ | PERM_WRITE,
PERM_READ | PERM_WRITE},
.nelems = 2,
},
[ICNSS_MSA_PERM_DUMP_COLLECT] = {
.vmids = {VMID_MSS_MSA, VMID_WLAN, VMID_HLOS},
.perms = {PERM_READ | PERM_WRITE,
PERM_READ | PERM_WRITE,
PERM_READ},
.nelems = 3,
},
};
struct icnss_msa_perm_list_t msa_perm_list[ICNSS_MSA_PERM_MAX] = {
[ICNSS_MSA_PERM_HLOS_ALL] = {
.vmids = {VMID_HLOS},
.perms = {PERM_READ | PERM_WRITE | PERM_EXEC},
.nelems = 1,
},
[ICNSS_MSA_PERM_WLAN_HW_RW] = {
.vmids = {VMID_MSS_MSA, VMID_WLAN, VMID_WLAN_CE},
.perms = {PERM_READ | PERM_WRITE,
PERM_READ | PERM_WRITE,
PERM_READ | PERM_WRITE},
.nelems = 3,
},
[ICNSS_MSA_PERM_DUMP_COLLECT] = {
.vmids = {VMID_MSS_MSA, VMID_WLAN, VMID_WLAN_CE, VMID_HLOS},
.perms = {PERM_READ | PERM_WRITE,
PERM_READ | PERM_WRITE,
PERM_READ | PERM_WRITE,
PERM_READ},
.nelems = 4,
},
};
struct icnss_event_pd_service_down_data {
bool crashed;
bool fw_rejuvenate;
};
struct icnss_driver_event {
struct list_head list;
enum icnss_driver_event_type type;
bool sync;
struct completion complete;
int ret;
void *data;
};
enum icnss_driver_state {
ICNSS_WLFW_QMI_CONNECTED,
ICNSS_POWER_ON,
ICNSS_FW_READY,
ICNSS_DRIVER_PROBED,
ICNSS_FW_TEST_MODE,
ICNSS_PM_SUSPEND,
ICNSS_PM_SUSPEND_NOIRQ,
ICNSS_SSR_REGISTERED,
ICNSS_PDR_REGISTERED,
ICNSS_PD_RESTART,
ICNSS_MSA0_ASSIGNED,
ICNSS_WLFW_EXISTS,
ICNSS_SHUTDOWN_DONE,
ICNSS_HOST_TRIGGERED_PDR,
ICNSS_FW_DOWN,
ICNSS_DRIVER_UNLOADING,
ICNSS_REJUVENATE,
ICNSS_BLOCK_SHUTDOWN,
};
struct ce_irq_list {
int irq;
irqreturn_t (*handler)(int, void *);
};
struct icnss_vreg_info {
struct regulator *reg;
const char *name;
u32 min_v;
u32 max_v;
u32 load_ua;
unsigned long settle_delay;
bool required;
};
struct icnss_clk_info {
struct clk *handle;
const char *name;
u32 freq;
bool required;
};
static struct icnss_vreg_info icnss_vreg_info[] = {
{NULL, "vdd-0.8-cx-mx", 800000, 800000, 0, 0, false},
{NULL, "vdd-1.8-xo", 1800000, 1800000, 0, 0, false},
{NULL, "vdd-1.3-rfa", 1304000, 1304000, 0, 0, false},
{NULL, "vdd-3.3-ch0", 3312000, 3312000, 0, 0, false},
};
#define ICNSS_VREG_INFO_SIZE ARRAY_SIZE(icnss_vreg_info)
static struct icnss_clk_info icnss_clk_info[] = {
{NULL, "cxo_ref_clk_pin", 0, false},
};
#define ICNSS_CLK_INFO_SIZE ARRAY_SIZE(icnss_clk_info)
struct icnss_stats {
struct {
uint32_t posted;
uint32_t processed;
} events[ICNSS_DRIVER_EVENT_MAX];
struct {
uint32_t request;
uint32_t free;
uint32_t enable;
uint32_t disable;
} ce_irqs[ICNSS_MAX_IRQ_REGISTRATIONS];
struct {
uint32_t pdr_fw_crash;
uint32_t pdr_host_error;
uint32_t root_pd_crash;
uint32_t root_pd_shutdown;
} recovery;
uint32_t pm_suspend;
uint32_t pm_suspend_err;
uint32_t pm_resume;
uint32_t pm_resume_err;
uint32_t pm_suspend_noirq;
uint32_t pm_suspend_noirq_err;
uint32_t pm_resume_noirq;
uint32_t pm_resume_noirq_err;
uint32_t pm_stay_awake;
uint32_t pm_relax;
uint32_t ind_register_req;
uint32_t ind_register_resp;
uint32_t ind_register_err;
uint32_t msa_info_req;
uint32_t msa_info_resp;
uint32_t msa_info_err;
uint32_t msa_ready_req;
uint32_t msa_ready_resp;
uint32_t msa_ready_err;
uint32_t msa_ready_ind;
uint32_t cap_req;
uint32_t cap_resp;
uint32_t cap_err;
uint32_t pin_connect_result;
uint32_t cfg_req;
uint32_t cfg_resp;
uint32_t cfg_req_err;
uint32_t mode_req;
uint32_t mode_resp;
uint32_t mode_req_err;
uint32_t ini_req;
uint32_t ini_resp;
uint32_t ini_req_err;
uint32_t vbatt_req;
uint32_t vbatt_resp;
uint32_t vbatt_req_err;
u32 rejuvenate_ind;
uint32_t rejuvenate_ack_req;
uint32_t rejuvenate_ack_resp;
uint32_t rejuvenate_ack_err;
};
#define MAX_NO_OF_MAC_ADDR 4
struct icnss_wlan_mac_addr {
u8 mac_addr[MAX_NO_OF_MAC_ADDR][ETH_ALEN];
uint32_t no_of_mac_addr_set;
};
enum icnss_pdr_cause_index {
ICNSS_FW_CRASH,
ICNSS_ROOT_PD_CRASH,
ICNSS_ROOT_PD_SHUTDOWN,
ICNSS_HOST_ERROR,
};
static const char * const icnss_pdr_cause[] = {
[ICNSS_FW_CRASH] = "FW crash",
[ICNSS_ROOT_PD_CRASH] = "Root PD crashed",
[ICNSS_ROOT_PD_SHUTDOWN] = "Root PD shutdown",
[ICNSS_HOST_ERROR] = "Host error",
};
struct service_notifier_context {
void *handle;
uint32_t instance_id;
char name[QMI_SERVREG_LOC_NAME_LENGTH_V01 + 1];
};
static struct icnss_priv {
uint32_t magic;
struct platform_device *pdev;
struct icnss_driver_ops *ops;
struct ce_irq_list ce_irq_list[ICNSS_MAX_IRQ_REGISTRATIONS];
struct icnss_vreg_info vreg_info[ICNSS_VREG_INFO_SIZE];
struct icnss_clk_info clk_info[ICNSS_CLK_INFO_SIZE];
u32 ce_irqs[ICNSS_MAX_IRQ_REGISTRATIONS];
phys_addr_t mem_base_pa;
void __iomem *mem_base_va;
struct dma_iommu_mapping *smmu_mapping;
dma_addr_t smmu_iova_start;
size_t smmu_iova_len;
dma_addr_t smmu_iova_ipa_start;
size_t smmu_iova_ipa_len;
struct qmi_handle *wlfw_clnt;
struct list_head event_list;
spinlock_t event_lock;
struct work_struct event_work;
struct work_struct qmi_recv_msg_work;
struct workqueue_struct *event_wq;
phys_addr_t msa_pa;
uint32_t msa_mem_size;
void *msa_va;
unsigned long state;
struct wlfw_rf_chip_info_s_v01 chip_info;
struct wlfw_rf_board_info_s_v01 board_info;
struct wlfw_soc_info_s_v01 soc_info;
struct wlfw_fw_version_info_s_v01 fw_version_info;
char fw_build_id[QMI_WLFW_MAX_BUILD_ID_LEN_V01 + 1];
u32 pwr_pin_result;
u32 phy_io_pin_result;
u32 rf_pin_result;
uint32_t nr_mem_region;
struct icnss_mem_region_info
mem_region[QMI_WLFW_MAX_NUM_MEMORY_REGIONS_V01];
struct dentry *root_dentry;
spinlock_t on_off_lock;
struct icnss_stats stats;
struct work_struct service_notifier_work;
struct service_notifier_context *service_notifier;
struct notifier_block service_notifier_nb;
int total_domains;
struct notifier_block get_service_nb;
void *modem_notify_handler;
struct notifier_block modem_ssr_nb;
uint32_t diag_reg_read_addr;
uint32_t diag_reg_read_mem_type;
uint32_t diag_reg_read_len;
uint8_t *diag_reg_read_buf;
struct qpnp_adc_tm_btm_param vph_monitor_params;
struct qpnp_adc_tm_chip *adc_tm_dev;
struct qpnp_vadc_chip *vadc_dev;
uint64_t vph_pwr;
atomic_t pm_count;
struct ramdump_device *msa0_dump_dev;
bool is_wlan_mac_set;
struct icnss_wlan_mac_addr wlan_mac_addr;
bool bypass_s1_smmu;
struct mutex dev_lock;
u8 cause_for_rejuvenation;
u8 requesting_sub_system;
u16 line_number;
char function_name[QMI_WLFW_FUNCTION_NAME_LEN_V01 + 1];
struct completion unblock_shutdown;
} *penv;
#ifdef CONFIG_ICNSS_DEBUG
static void icnss_ignore_qmi_timeout(bool ignore)
{
ignore_qmi_timeout = ignore;
}
#else
static void icnss_ignore_qmi_timeout(bool ignore) { }
#endif
static int icnss_assign_msa_perm(struct icnss_mem_region_info
*mem_region, enum icnss_msa_perm new_perm)
{
int ret = 0;
phys_addr_t addr;
u32 size;
u32 i = 0;
u32 source_vmids[ICNSS_MAX_VMIDS] = {0};
u32 source_nelems;
u32 dest_vmids[ICNSS_MAX_VMIDS] = {0};
u32 dest_perms[ICNSS_MAX_VMIDS] = {0};
u32 dest_nelems;
enum icnss_msa_perm cur_perm = mem_region->perm;
struct icnss_msa_perm_list_t *new_perm_list, *old_perm_list;
addr = mem_region->reg_addr;
size = mem_region->size;
if (mem_region->secure_flag) {
new_perm_list = &msa_perm_secure_list[new_perm];
old_perm_list = &msa_perm_secure_list[cur_perm];
} else {
new_perm_list = &msa_perm_list[new_perm];
old_perm_list = &msa_perm_list[cur_perm];
}
source_nelems = old_perm_list->nelems;
dest_nelems = new_perm_list->nelems;
for (i = 0; i < source_nelems; ++i)
source_vmids[i] = old_perm_list->vmids[i];
for (i = 0; i < dest_nelems; ++i) {
dest_vmids[i] = new_perm_list->vmids[i];
dest_perms[i] = new_perm_list->perms[i];
}
ret = hyp_assign_phys(addr, size, source_vmids, source_nelems,
dest_vmids, dest_perms, dest_nelems);
if (ret) {
icnss_pr_err("Hyperviser map failed for PA=%pa size=%u err=%d\n",
&addr, size, ret);
goto out;
}
icnss_pr_dbg("Hypervisor map for source_nelems=%d, source[0]=%x, source[1]=%x, source[2]=%x,"
"source[3]=%x, dest_nelems=%d, dest[0]=%x, dest[1]=%x, dest[2]=%x, dest[3]=%x\n",
source_nelems, source_vmids[0], source_vmids[1],
source_vmids[2], source_vmids[3], dest_nelems,
dest_vmids[0], dest_vmids[1], dest_vmids[2],
dest_vmids[3]);
out:
return ret;
}
static int icnss_assign_msa_perm_all(struct icnss_priv *priv,
enum icnss_msa_perm new_perm)
{
int ret;
int i;
enum icnss_msa_perm old_perm;
if (priv->nr_mem_region > QMI_WLFW_MAX_NUM_MEMORY_REGIONS_V01) {
icnss_pr_err("Invalid memory region len %d\n",
priv->nr_mem_region);
return -EINVAL;
}
for (i = 0; i < priv->nr_mem_region; i++) {
old_perm = priv->mem_region[i].perm;
ret = icnss_assign_msa_perm(&priv->mem_region[i], new_perm);
if (ret)
goto err_unmap;
priv->mem_region[i].perm = new_perm;
}
return 0;
err_unmap:
for (i--; i >= 0; i--) {
icnss_assign_msa_perm(&priv->mem_region[i], old_perm);
}
return ret;
}
static void icnss_pm_stay_awake(struct icnss_priv *priv)
{
if (atomic_inc_return(&priv->pm_count) != 1)
return;
icnss_pr_vdbg("PM stay awake, state: 0x%lx, count: %d\n", priv->state,
atomic_read(&priv->pm_count));
pm_stay_awake(&priv->pdev->dev);
priv->stats.pm_stay_awake++;
}
static void icnss_pm_relax(struct icnss_priv *priv)
{
int r = atomic_dec_return(&priv->pm_count);
WARN_ON(r < 0);
if (r != 0)
return;
icnss_pr_vdbg("PM relax, state: 0x%lx, count: %d\n", priv->state,
atomic_read(&priv->pm_count));
pm_relax(&priv->pdev->dev);
priv->stats.pm_relax++;
}
static char *icnss_driver_event_to_str(enum icnss_driver_event_type type)
{
switch (type) {
case ICNSS_DRIVER_EVENT_SERVER_ARRIVE:
return "SERVER_ARRIVE";
case ICNSS_DRIVER_EVENT_SERVER_EXIT:
return "SERVER_EXIT";
case ICNSS_DRIVER_EVENT_FW_READY_IND:
return "FW_READY";
case ICNSS_DRIVER_EVENT_REGISTER_DRIVER:
return "REGISTER_DRIVER";
case ICNSS_DRIVER_EVENT_UNREGISTER_DRIVER:
return "UNREGISTER_DRIVER";
case ICNSS_DRIVER_EVENT_PD_SERVICE_DOWN:
return "PD_SERVICE_DOWN";
case ICNSS_DRIVER_EVENT_MAX:
return "EVENT_MAX";
}
return "UNKNOWN";
};
static int icnss_driver_event_post(enum icnss_driver_event_type type,
u32 flags, void *data)
{
struct icnss_driver_event *event;
unsigned long irq_flags;
int gfp = GFP_KERNEL;
int ret = 0;
icnss_pr_dbg("Posting event: %s(%d), %s, flags: 0x%x, state: 0x%lx\n",
icnss_driver_event_to_str(type), type, current->comm,
flags, penv->state);
if (type >= ICNSS_DRIVER_EVENT_MAX) {
icnss_pr_err("Invalid Event type: %d, can't post", type);
return -EINVAL;
}
if (in_interrupt() || irqs_disabled())
gfp = GFP_ATOMIC;
event = kzalloc(sizeof(*event), gfp);
if (event == NULL)
return -ENOMEM;
icnss_pm_stay_awake(penv);
event->type = type;
event->data = data;
init_completion(&event->complete);
event->ret = ICNSS_EVENT_PENDING;
event->sync = !!(flags & ICNSS_EVENT_SYNC);
spin_lock_irqsave(&penv->event_lock, irq_flags);
list_add_tail(&event->list, &penv->event_list);
spin_unlock_irqrestore(&penv->event_lock, irq_flags);
penv->stats.events[type].posted++;
queue_work(penv->event_wq, &penv->event_work);
if (!(flags & ICNSS_EVENT_SYNC))
goto out;
if (flags & ICNSS_EVENT_UNINTERRUPTIBLE)
wait_for_completion(&event->complete);
else
ret = wait_for_completion_interruptible(&event->complete);
icnss_pr_dbg("Completed event: %s(%d), state: 0x%lx, ret: %d/%d\n",
icnss_driver_event_to_str(type), type, penv->state, ret,
event->ret);
spin_lock_irqsave(&penv->event_lock, irq_flags);
if (ret == -ERESTARTSYS && event->ret == ICNSS_EVENT_PENDING) {
event->sync = false;
spin_unlock_irqrestore(&penv->event_lock, irq_flags);
ret = -EINTR;
goto out;
}
spin_unlock_irqrestore(&penv->event_lock, irq_flags);
ret = event->ret;
kfree(event);
out:
icnss_pm_relax(penv);
return ret;
}
static int wlfw_vbatt_send_sync_msg(struct icnss_priv *priv,
uint64_t voltage_uv)
{
int ret;
struct wlfw_vbatt_req_msg_v01 req;
struct wlfw_vbatt_resp_msg_v01 resp;
struct msg_desc req_desc, resp_desc;
if (!priv->wlfw_clnt) {
ret = -ENODEV;
goto out;
}
icnss_pr_dbg("Sending Vbatt message, state: 0x%lx\n",
penv->state);
memset(&req, 0, sizeof(req));
memset(&resp, 0, sizeof(resp));
req.voltage_uv = voltage_uv;
req_desc.max_msg_len = WLFW_VBATT_REQ_MSG_V01_MAX_MSG_LEN;
req_desc.msg_id = QMI_WLFW_VBATT_REQ_V01;
req_desc.ei_array = wlfw_vbatt_req_msg_v01_ei;
resp_desc.max_msg_len = WLFW_VBATT_RESP_MSG_V01_MAX_MSG_LEN;
resp_desc.msg_id = QMI_WLFW_VBATT_RESP_V01;
resp_desc.ei_array = wlfw_vbatt_resp_msg_v01_ei;
priv->stats.vbatt_req++;
ret = qmi_send_req_wait(priv->wlfw_clnt, &req_desc, &req, sizeof(req),
&resp_desc, &resp, sizeof(resp), WLFW_TIMEOUT_MS);
if (ret < 0) {
icnss_pr_err("Send vbatt req failed %d\n", ret);
goto out;
}
if (resp.resp.result != QMI_RESULT_SUCCESS_V01) {
icnss_pr_err("QMI vbatt request rejected, result:%d error:%d\n",
resp.resp.result, resp.resp.error);
ret = -resp.resp.result;
goto out;
}
priv->stats.vbatt_resp++;
out:
priv->stats.vbatt_req_err++;
return ret;
}
static int icnss_get_phone_power(struct icnss_priv *priv, uint64_t *result_uv)
{
int ret = 0;
struct qpnp_vadc_result adc_result;
if (!priv->vadc_dev) {
icnss_pr_err("VADC dev doesn't exists\n");
ret = -EINVAL;
goto out;
}
ret = qpnp_vadc_read(penv->vadc_dev, VADC_VPH_PWR, &adc_result);
if (ret) {
icnss_pr_err("Error reading ADC channel %d, ret = %d\n",
VADC_VPH_PWR, ret);
goto out;
}
icnss_pr_dbg("Phone power read phy=%lld meas=0x%llx\n",
adc_result.physical, adc_result.measurement);
*result_uv = adc_result.physical;
out:
return ret;
}
static void icnss_vph_notify(enum qpnp_tm_state state, void *ctx)
{
struct icnss_priv *priv = ctx;
uint64_t vph_pwr = 0;
uint64_t vph_pwr_prev;
int ret = 0;
bool update = true;
if (!priv) {
icnss_pr_err("Priv pointer is NULL\n");
return;
}
vph_pwr_prev = priv->vph_pwr;
ret = icnss_get_phone_power(priv, &vph_pwr);
if (ret)
return;
if (vph_pwr < ICNSS_THRESHOLD_LOW) {
if (vph_pwr_prev < ICNSS_THRESHOLD_LOW)
update = false;
priv->vph_monitor_params.state_request =
ADC_TM_HIGH_THR_ENABLE;
priv->vph_monitor_params.high_thr = ICNSS_THRESHOLD_LOW +
ICNSS_THRESHOLD_GUARD;
priv->vph_monitor_params.low_thr = 0;
} else if (vph_pwr > ICNSS_THRESHOLD_HIGH) {
if (vph_pwr_prev > ICNSS_THRESHOLD_HIGH)
update = false;
priv->vph_monitor_params.state_request =
ADC_TM_LOW_THR_ENABLE;
priv->vph_monitor_params.low_thr = ICNSS_THRESHOLD_HIGH -
ICNSS_THRESHOLD_GUARD;
priv->vph_monitor_params.high_thr = 0;
} else {
if (vph_pwr_prev > ICNSS_THRESHOLD_LOW &&
vph_pwr_prev < ICNSS_THRESHOLD_HIGH)
update = false;
priv->vph_monitor_params.state_request =
ADC_TM_HIGH_LOW_THR_ENABLE;
priv->vph_monitor_params.low_thr = ICNSS_THRESHOLD_LOW;
priv->vph_monitor_params.high_thr = ICNSS_THRESHOLD_HIGH;
}
priv->vph_pwr = vph_pwr;
if (update)
wlfw_vbatt_send_sync_msg(priv, vph_pwr);
icnss_pr_dbg("set low threshold to %d, high threshold to %d\n",
priv->vph_monitor_params.low_thr,
priv->vph_monitor_params.high_thr);
ret = qpnp_adc_tm_channel_measure(priv->adc_tm_dev,
&priv->vph_monitor_params);
if (ret)
icnss_pr_err("TM channel setup failed %d\n", ret);
}
static int icnss_setup_vph_monitor(struct icnss_priv *priv)
{
int ret = 0;
if (!priv->adc_tm_dev) {
icnss_pr_err("ADC TM handler is NULL\n");
ret = -EINVAL;
goto out;
}
priv->vph_monitor_params.low_thr = ICNSS_THRESHOLD_LOW;
priv->vph_monitor_params.high_thr = ICNSS_THRESHOLD_HIGH;
priv->vph_monitor_params.state_request = ADC_TM_HIGH_LOW_THR_ENABLE;
priv->vph_monitor_params.channel = VADC_VPH_PWR;
priv->vph_monitor_params.btm_ctx = priv;
priv->vph_monitor_params.timer_interval = ADC_MEAS1_INTERVAL_1S;
priv->vph_monitor_params.threshold_notification = &icnss_vph_notify;
icnss_pr_dbg("Set low threshold to %d, high threshold to %d\n",
priv->vph_monitor_params.low_thr,
priv->vph_monitor_params.high_thr);
ret = qpnp_adc_tm_channel_measure(priv->adc_tm_dev,
&priv->vph_monitor_params);
if (ret)
icnss_pr_err("TM channel setup failed %d\n", ret);
out:
return ret;
}
static int icnss_init_vph_monitor(struct icnss_priv *priv)
{
int ret = 0;
if (test_bit(VBATT_DISABLE, &quirks))
goto out;
ret = icnss_get_phone_power(priv, &priv->vph_pwr);
if (ret)
goto out;
wlfw_vbatt_send_sync_msg(priv, priv->vph_pwr);
ret = icnss_setup_vph_monitor(priv);
if (ret)
goto out;
out:
return ret;
}
static int icnss_qmi_pin_connect_result_ind(void *msg, unsigned int msg_len)
{
struct msg_desc ind_desc;
struct wlfw_pin_connect_result_ind_msg_v01 ind_msg;
int ret = 0;
if (!penv || !penv->wlfw_clnt) {
ret = -ENODEV;
goto out;
}
memset(&ind_msg, 0, sizeof(ind_msg));
ind_desc.msg_id = QMI_WLFW_PIN_CONNECT_RESULT_IND_V01;
ind_desc.max_msg_len = WLFW_PIN_CONNECT_RESULT_IND_MSG_V01_MAX_MSG_LEN;
ind_desc.ei_array = wlfw_pin_connect_result_ind_msg_v01_ei;
ret = qmi_kernel_decode(&ind_desc, &ind_msg, msg, msg_len);
if (ret < 0) {
icnss_pr_err("Failed to decode message: %d, msg_len: %u\n",
ret, msg_len);
goto out;
}
/* store pin result locally */
if (ind_msg.pwr_pin_result_valid)
penv->pwr_pin_result = ind_msg.pwr_pin_result;
if (ind_msg.phy_io_pin_result_valid)
penv->phy_io_pin_result = ind_msg.phy_io_pin_result;
if (ind_msg.rf_pin_result_valid)
penv->rf_pin_result = ind_msg.rf_pin_result;
icnss_pr_dbg("Pin connect Result: pwr_pin: 0x%x phy_io_pin: 0x%x rf_io_pin: 0x%x\n",
ind_msg.pwr_pin_result, ind_msg.phy_io_pin_result,
ind_msg.rf_pin_result);
penv->stats.pin_connect_result++;
out:
return ret;
}
static int icnss_vreg_on(struct icnss_priv *priv)
{
int ret = 0;
struct icnss_vreg_info *vreg_info;
int i;
for (i = 0; i < ICNSS_VREG_INFO_SIZE; i++) {
vreg_info = &priv->vreg_info[i];
if (!vreg_info->reg)
continue;
icnss_pr_vdbg("Regulator %s being enabled\n", vreg_info->name);
ret = regulator_set_voltage(vreg_info->reg, vreg_info->min_v,
vreg_info->max_v);
if (ret) {
icnss_pr_err("Regulator %s, can't set voltage: min_v: %u, max_v: %u, ret: %d\n",
vreg_info->name, vreg_info->min_v,
vreg_info->max_v, ret);
break;
}
if (vreg_info->load_ua) {
ret = regulator_set_load(vreg_info->reg,
vreg_info->load_ua);
if (ret < 0) {
icnss_pr_err("Regulator %s, can't set load: %u, ret: %d\n",
vreg_info->name,
vreg_info->load_ua, ret);
break;
}
}
ret = regulator_enable(vreg_info->reg);
if (ret) {
icnss_pr_err("Regulator %s, can't enable: %d\n",
vreg_info->name, ret);
break;
}
if (vreg_info->settle_delay)
udelay(vreg_info->settle_delay);
}
if (!ret)
return 0;
for (; i >= 0; i--) {
vreg_info = &priv->vreg_info[i];
if (!vreg_info->reg)
continue;
regulator_disable(vreg_info->reg);
regulator_set_load(vreg_info->reg, 0);
regulator_set_voltage(vreg_info->reg, 0, vreg_info->max_v);
}
return ret;
}