| /* Copyright (c) 2011-2013, 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. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/firmware.h> |
| #include <linux/slab.h> |
| #include <linux/err.h> |
| #include <linux/platform_device.h> |
| #include <linux/miscdevice.h> |
| #include <linux/fs.h> |
| #include <linux/wcnss_wlan.h> |
| #include <linux/platform_data/qcom_wcnss_device.h> |
| #include <linux/workqueue.h> |
| #include <linux/jiffies.h> |
| #include <linux/gpio.h> |
| #include <linux/wakelock.h> |
| #include <linux/delay.h> |
| #include <linux/of.h> |
| #include <linux/of_gpio.h> |
| #include <linux/clk.h> |
| #include <linux/ratelimit.h> |
| #include <linux/kthread.h> |
| #include <linux/wait.h> |
| #include <linux/uaccess.h> |
| #include <linux/suspend.h> |
| #include <linux/rwsem.h> |
| #include <linux/mfd/pm8xxx/misc.h> |
| #include <linux/qpnp/qpnp-adc.h> |
| |
| #include <mach/msm_smd.h> |
| #include <mach/msm_iomap.h> |
| #include <mach/subsystem_restart.h> |
| |
| #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| #include "wcnss_prealloc.h" |
| #endif |
| |
| #define DEVICE "wcnss_wlan" |
| #define CTRL_DEVICE "wcnss_ctrl" |
| #define VERSION "1.01" |
| #define WCNSS_PIL_DEVICE "wcnss" |
| |
| /* module params */ |
| #define WCNSS_CONFIG_UNSPECIFIED (-1) |
| #define UINT32_MAX (0xFFFFFFFFU) |
| |
| static int has_48mhz_xo = WCNSS_CONFIG_UNSPECIFIED; |
| module_param(has_48mhz_xo, int, S_IWUSR | S_IRUGO); |
| MODULE_PARM_DESC(has_48mhz_xo, "Is an external 48 MHz XO present"); |
| |
| static int has_calibrated_data = WCNSS_CONFIG_UNSPECIFIED; |
| module_param(has_calibrated_data, int, S_IWUSR | S_IRUGO); |
| MODULE_PARM_DESC(has_calibrated_data, "whether calibrated data file available"); |
| |
| static int has_autodetect_xo = WCNSS_CONFIG_UNSPECIFIED; |
| module_param(has_autodetect_xo, int, S_IWUSR | S_IRUGO); |
| MODULE_PARM_DESC(has_autodetect_xo, "Perform auto detect to configure IRIS XO"); |
| |
| static int do_not_cancel_vote = WCNSS_CONFIG_UNSPECIFIED; |
| module_param(do_not_cancel_vote, int, S_IWUSR | S_IRUGO); |
| MODULE_PARM_DESC(do_not_cancel_vote, "Do not cancel votes for wcnss"); |
| |
| static DEFINE_SPINLOCK(reg_spinlock); |
| |
| #define MSM_RIVA_PHYS 0x03204000 |
| #define MSM_PRONTO_PHYS 0xfb21b000 |
| |
| #define RIVA_SPARE_OFFSET 0x0b4 |
| #define RIVA_SUSPEND_BIT BIT(24) |
| |
| #define MSM_RIVA_CCU_BASE 0x03200800 |
| |
| #define CCU_RIVA_INVALID_ADDR_OFFSET 0x100 |
| #define CCU_RIVA_LAST_ADDR0_OFFSET 0x104 |
| #define CCU_RIVA_LAST_ADDR1_OFFSET 0x108 |
| #define CCU_RIVA_LAST_ADDR2_OFFSET 0x10c |
| |
| #define PRONTO_PMU_SPARE_OFFSET 0x1088 |
| |
| #define PRONTO_PMU_COM_GDSCR_OFFSET 0x0024 |
| #define PRONTO_PMU_COM_GDSCR_SW_COLLAPSE BIT(0) |
| #define PRONTO_PMU_COM_GDSCR_HW_CTRL BIT(1) |
| |
| #define PRONTO_PMU_WLAN_BCR_OFFSET 0x0050 |
| #define PRONTO_PMU_WLAN_BCR_BLK_ARES BIT(0) |
| |
| #define PRONTO_PMU_WLAN_GDSCR_OFFSET 0x0054 |
| #define PRONTO_PMU_WLAN_GDSCR_SW_COLLAPSE BIT(0) |
| |
| |
| #define PRONTO_PMU_CBCR_OFFSET 0x0008 |
| #define PRONTO_PMU_CBCR_CLK_EN BIT(0) |
| |
| #define PRONTO_PMU_COM_CPU_CBCR_OFFSET 0x0030 |
| #define PRONTO_PMU_COM_AHB_CBCR_OFFSET 0x0034 |
| |
| #define PRONTO_PMU_WLAN_AHB_CBCR_OFFSET 0x0074 |
| #define PRONTO_PMU_WLAN_AHB_CBCR_CLK_EN BIT(0) |
| #define PRONTO_PMU_WLAN_AHB_CBCR_CLK_OFF BIT(31) |
| |
| #define PRONTO_PMU_CPU_AHB_CMD_RCGR_OFFSET 0x0120 |
| #define PRONTO_PMU_CPU_AHB_CMD_RCGR_ROOT_EN BIT(1) |
| |
| #define PRONTO_PMU_CFG_OFFSET 0x1004 |
| #define PRONTO_PMU_COM_CSR_OFFSET 0x1040 |
| #define PRONTO_PMU_SOFT_RESET_OFFSET 0x104C |
| |
| #define MSM_PRONTO_A2XB_BASE 0xfb100400 |
| #define A2XB_CFG_OFFSET 0x00 |
| #define A2XB_INT_SRC_OFFSET 0x0c |
| #define A2XB_TSTBUS_CTRL_OFFSET 0x14 |
| #define A2XB_TSTBUS_OFFSET 0x18 |
| #define A2XB_ERR_INFO_OFFSET 0x1c |
| |
| #define WCNSS_TSTBUS_CTRL_EN BIT(0) |
| #define WCNSS_TSTBUS_CTRL_AXIM (0x02 << 1) |
| #define WCNSS_TSTBUS_CTRL_CMDFIFO (0x03 << 1) |
| #define WCNSS_TSTBUS_CTRL_WRFIFO (0x04 << 1) |
| #define WCNSS_TSTBUS_CTRL_RDFIFO (0x05 << 1) |
| #define WCNSS_TSTBUS_CTRL_CTRL (0x07 << 1) |
| #define WCNSS_TSTBUS_CTRL_AXIM_CFG0 (0x00 << 6) |
| #define WCNSS_TSTBUS_CTRL_AXIM_CFG1 (0x01 << 6) |
| #define WCNSS_TSTBUS_CTRL_CTRL_CFG0 (0x00 << 12) |
| #define WCNSS_TSTBUS_CTRL_CTRL_CFG1 (0x01 << 12) |
| |
| #define MSM_PRONTO_CCPU_BASE 0xfb205050 |
| #define CCU_PRONTO_INVALID_ADDR_OFFSET 0x08 |
| #define CCU_PRONTO_LAST_ADDR0_OFFSET 0x0c |
| #define CCU_PRONTO_LAST_ADDR1_OFFSET 0x10 |
| #define CCU_PRONTO_LAST_ADDR2_OFFSET 0x14 |
| |
| #define MSM_PRONTO_SAW2_BASE 0xfb219000 |
| #define PRONTO_SAW2_SPM_STS_OFFSET 0x0c |
| |
| #define MSM_PRONTO_PLL_BASE 0xfb21b1c0 |
| #define PRONTO_PLL_STATUS_OFFSET 0x1c |
| |
| #define MSM_PRONTO_TXP_STATUS 0xfb08040c |
| #define MSM_PRONTO_TXP_PHY_ABORT 0xfb080488 |
| #define MSM_PRONTO_BRDG_ERR_SRC 0xfb080fb0 |
| |
| #define MSM_PRONTO_ALARMS_TXCTL 0xfb0120a8 |
| #define MSM_PRONTO_ALARMS_TACTL 0xfb012448 |
| |
| #define WCNSS_DEF_WLAN_RX_BUFF_COUNT 1024 |
| #define WCNSS_VBATT_THRESHOLD 3500000 |
| #define WCNSS_VBATT_GUARD 200 |
| #define WCNSS_VBATT_HIGH 3700000 |
| #define WCNSS_VBATT_LOW 3300000 |
| |
| #define WCNSS_CTRL_CHANNEL "WCNSS_CTRL" |
| #define WCNSS_MAX_FRAME_SIZE (4*1024) |
| #define WCNSS_VERSION_LEN 30 |
| #define WCNSS_MAX_BUILD_VER_LEN 256 |
| #define WCNSS_MAX_CMD_LEN (128) |
| #define WCNSS_MIN_CMD_LEN (3) |
| #define WCNSS_MIN_SERIAL_LEN (6) |
| |
| /* control messages from userspace */ |
| #define WCNSS_USR_CTRL_MSG_START 0x00000000 |
| #define WCNSS_USR_SERIAL_NUM (WCNSS_USR_CTRL_MSG_START + 1) |
| #define WCNSS_USR_HAS_CAL_DATA (WCNSS_USR_CTRL_MSG_START + 2) |
| |
| #define MAC_ADDRESS_STR "%02x:%02x:%02x:%02x:%02x:%02x" |
| |
| /* message types */ |
| #define WCNSS_CTRL_MSG_START 0x01000000 |
| #define WCNSS_VERSION_REQ (WCNSS_CTRL_MSG_START + 0) |
| #define WCNSS_VERSION_RSP (WCNSS_CTRL_MSG_START + 1) |
| #define WCNSS_NVBIN_DNLD_REQ (WCNSS_CTRL_MSG_START + 2) |
| #define WCNSS_NVBIN_DNLD_RSP (WCNSS_CTRL_MSG_START + 3) |
| #define WCNSS_CALDATA_UPLD_REQ (WCNSS_CTRL_MSG_START + 4) |
| #define WCNSS_CALDATA_UPLD_RSP (WCNSS_CTRL_MSG_START + 5) |
| #define WCNSS_CALDATA_DNLD_REQ (WCNSS_CTRL_MSG_START + 6) |
| #define WCNSS_CALDATA_DNLD_RSP (WCNSS_CTRL_MSG_START + 7) |
| #define WCNSS_VBATT_LEVEL_IND (WCNSS_CTRL_MSG_START + 8) |
| #define WCNSS_BUILD_VER_REQ (WCNSS_CTRL_MSG_START + 9) |
| #define WCNSS_BUILD_VER_RSP (WCNSS_CTRL_MSG_START + 10) |
| |
| /* max 20mhz channel count */ |
| #define WCNSS_MAX_CH_NUM 45 |
| |
| #define VALID_VERSION(version) \ |
| ((strncmp(version, "INVALID", WCNSS_VERSION_LEN)) ? 1 : 0) |
| |
| #define FW_CALDATA_CAPABLE() \ |
| ((penv->fw_major >= 1) && (penv->fw_minor >= 5) ? 1 : 0) |
| |
| struct smd_msg_hdr { |
| unsigned int msg_type; |
| unsigned int msg_len; |
| }; |
| |
| struct wcnss_version { |
| struct smd_msg_hdr hdr; |
| unsigned char major; |
| unsigned char minor; |
| unsigned char version; |
| unsigned char revision; |
| }; |
| |
| struct wcnss_pmic_dump { |
| char reg_name[10]; |
| u16 reg_addr; |
| }; |
| |
| static struct wcnss_pmic_dump wcnss_pmic_reg_dump[] = { |
| {"S2", 0x1D8}, |
| {"L4", 0xB4}, |
| {"L10", 0xC0}, |
| {"LVS2", 0x62}, |
| {"S4", 0x1E8}, |
| {"LVS7", 0x06C}, |
| {"LVS1", 0x060}, |
| }; |
| |
| #define NVBIN_FILE "wlan/prima/WCNSS_qcom_wlan_nv.bin" |
| |
| /* |
| * On SMD channel 4K of maximum data can be transferred, including message |
| * header, so NV fragment size as next multiple of 1Kb is 3Kb. |
| */ |
| #define NV_FRAGMENT_SIZE 3072 |
| #define MAX_CALIBRATED_DATA_SIZE (64*1024) |
| #define LAST_FRAGMENT (1 << 0) |
| #define MESSAGE_TO_FOLLOW (1 << 1) |
| #define CAN_RECEIVE_CALDATA (1 << 15) |
| #define WCNSS_RESP_SUCCESS 1 |
| #define WCNSS_RESP_FAIL 0 |
| |
| |
| /* Macro to find the total number fragments of the NV bin Image */ |
| #define TOTALFRAGMENTS(x) (((x % NV_FRAGMENT_SIZE) == 0) ? \ |
| (x / NV_FRAGMENT_SIZE) : ((x / NV_FRAGMENT_SIZE) + 1)) |
| |
| struct nvbin_dnld_req_params { |
| /* |
| * Fragment sequence number of the NV bin Image. NV Bin Image |
| * might not fit into one message due to size limitation of |
| * the SMD channel FIFO so entire NV blob is chopped into |
| * multiple fragments starting with seqeunce number 0. The |
| * last fragment is indicated by marking is_last_fragment field |
| * to 1. At receiving side, NV blobs would be concatenated |
| * together without any padding bytes in between. |
| */ |
| unsigned short frag_number; |
| |
| /* |
| * bit 0: When set to 1 it indicates that no more fragments will |
| * be sent. |
| * bit 1: When set, a new message will be followed by this message |
| * bit 2- bit 14: Reserved |
| * bit 15: when set, it indicates that the sender is capable of |
| * receiving Calibrated data. |
| */ |
| unsigned short msg_flags; |
| |
| /* NV Image size (number of bytes) */ |
| unsigned int nvbin_buffer_size; |
| |
| /* |
| * Following the 'nvbin_buffer_size', there should be |
| * nvbin_buffer_size bytes of NV bin Image i.e. |
| * uint8[nvbin_buffer_size]. |
| */ |
| }; |
| |
| |
| struct nvbin_dnld_req_msg { |
| /* |
| * Note: The length specified in nvbin_dnld_req_msg messages |
| * should be hdr.msg_len = sizeof(nvbin_dnld_req_msg) + |
| * nvbin_buffer_size. |
| */ |
| struct smd_msg_hdr hdr; |
| struct nvbin_dnld_req_params dnld_req_params; |
| }; |
| |
| struct cal_data_params { |
| |
| /* The total size of the calibrated data, including all the |
| * fragments. |
| */ |
| unsigned int total_size; |
| unsigned short frag_number; |
| /* |
| * bit 0: When set to 1 it indicates that no more fragments will |
| * be sent. |
| * bit 1: When set, a new message will be followed by this message |
| * bit 2- bit 15: Reserved |
| */ |
| unsigned short msg_flags; |
| /* |
| * fragment size |
| */ |
| unsigned int frag_size; |
| /* |
| * Following the frag_size, frag_size of fragmented |
| * data will be followed. |
| */ |
| }; |
| |
| struct cal_data_msg { |
| /* |
| * The length specified in cal_data_msg should be |
| * hdr.msg_len = sizeof(cal_data_msg) + frag_size |
| */ |
| struct smd_msg_hdr hdr; |
| struct cal_data_params cal_params; |
| }; |
| |
| struct vbatt_level { |
| u32 curr_volt; |
| u32 threshold; |
| }; |
| |
| struct vbatt_message { |
| struct smd_msg_hdr hdr; |
| struct vbatt_level vbatt; |
| }; |
| |
| static struct { |
| struct platform_device *pdev; |
| void *pil; |
| struct resource *mmio_res; |
| struct resource *tx_irq_res; |
| struct resource *rx_irq_res; |
| struct resource *gpios_5wire; |
| const struct dev_pm_ops *pm_ops; |
| int triggered; |
| int smd_channel_ready; |
| u32 wlan_rx_buff_count; |
| smd_channel_t *smd_ch; |
| unsigned char wcnss_version[WCNSS_VERSION_LEN]; |
| unsigned char fw_major; |
| unsigned char fw_minor; |
| unsigned int serial_number; |
| int thermal_mitigation; |
| enum wcnss_hw_type wcnss_hw_type; |
| void (*tm_notify)(struct device *, int); |
| struct wcnss_wlan_config wlan_config; |
| struct delayed_work wcnss_work; |
| struct delayed_work vbatt_work; |
| struct work_struct wcnssctrl_version_work; |
| struct work_struct wcnssctrl_nvbin_dnld_work; |
| struct work_struct wcnssctrl_rx_work; |
| struct wake_lock wcnss_wake_lock; |
| void __iomem *msm_wcnss_base; |
| void __iomem *riva_ccu_base; |
| void __iomem *pronto_a2xb_base; |
| void __iomem *pronto_ccpu_base; |
| void __iomem *pronto_saw2_base; |
| void __iomem *pronto_pll_base; |
| void __iomem *wlan_tx_status; |
| void __iomem *wlan_tx_phy_aborts; |
| void __iomem *wlan_brdg_err_source; |
| void __iomem *alarms_txctl; |
| void __iomem *alarms_tactl; |
| void __iomem *fiq_reg; |
| int nv_downloaded; |
| unsigned char *fw_cal_data; |
| unsigned char *user_cal_data; |
| int fw_cal_rcvd; |
| int fw_cal_exp_frag; |
| int fw_cal_available; |
| int user_cal_read; |
| int user_cal_available; |
| u32 user_cal_rcvd; |
| int user_cal_exp_size; |
| int device_opened; |
| int iris_xo_mode_set; |
| int fw_vbatt_state; |
| int ctrl_device_opened; |
| char wlan_nv_macAddr[WLAN_MAC_ADDR_SIZE]; |
| struct mutex dev_lock; |
| struct mutex ctrl_lock; |
| wait_queue_head_t read_wait; |
| struct qpnp_adc_tm_btm_param vbat_monitor_params; |
| struct qpnp_adc_tm_chip *adc_tm_dev; |
| struct mutex vbat_monitor_mutex; |
| u16 unsafe_ch_count; |
| u16 unsafe_ch_list[WCNSS_MAX_CH_NUM]; |
| } *penv = NULL; |
| |
| static ssize_t wcnss_wlan_macaddr_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| char macAddr[WLAN_MAC_ADDR_SIZE]; |
| |
| if (!penv) |
| return -ENODEV; |
| |
| pr_debug("%s: Receive MAC Addr From user space: %s\n", __func__, buf); |
| |
| if (WLAN_MAC_ADDR_SIZE != sscanf(buf, MAC_ADDRESS_STR, |
| (int *)&macAddr[0], (int *)&macAddr[1], |
| (int *)&macAddr[2], (int *)&macAddr[3], |
| (int *)&macAddr[4], (int *)&macAddr[5])) { |
| |
| pr_err("%s: Failed to Copy MAC\n", __func__); |
| return -EINVAL; |
| } |
| |
| memcpy(penv->wlan_nv_macAddr, macAddr, sizeof(penv->wlan_nv_macAddr)); |
| |
| pr_info("%s: Write MAC Addr:" MAC_ADDRESS_STR "\n", __func__, |
| penv->wlan_nv_macAddr[0], penv->wlan_nv_macAddr[1], |
| penv->wlan_nv_macAddr[2], penv->wlan_nv_macAddr[3], |
| penv->wlan_nv_macAddr[4], penv->wlan_nv_macAddr[5]); |
| |
| return count; |
| } |
| |
| static ssize_t wcnss_wlan_macaddr_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| if (!penv) |
| return -ENODEV; |
| |
| return scnprintf(buf, PAGE_SIZE, MAC_ADDRESS_STR, |
| penv->wlan_nv_macAddr[0], penv->wlan_nv_macAddr[1], |
| penv->wlan_nv_macAddr[2], penv->wlan_nv_macAddr[3], |
| penv->wlan_nv_macAddr[4], penv->wlan_nv_macAddr[5]); |
| } |
| |
| static DEVICE_ATTR(wcnss_mac_addr, S_IRUSR | S_IWUSR, |
| wcnss_wlan_macaddr_show, wcnss_wlan_macaddr_store); |
| |
| static ssize_t wcnss_serial_number_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| if (!penv) |
| return -ENODEV; |
| |
| return scnprintf(buf, PAGE_SIZE, "%08X\n", penv->serial_number); |
| } |
| |
| static ssize_t wcnss_serial_number_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| unsigned int value; |
| |
| if (!penv) |
| return -ENODEV; |
| |
| if (sscanf(buf, "%08X", &value) != 1) |
| return -EINVAL; |
| |
| penv->serial_number = value; |
| return count; |
| } |
| |
| static DEVICE_ATTR(serial_number, S_IRUSR | S_IWUSR, |
| wcnss_serial_number_show, wcnss_serial_number_store); |
| |
| |
| static ssize_t wcnss_thermal_mitigation_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| if (!penv) |
| return -ENODEV; |
| |
| return scnprintf(buf, PAGE_SIZE, "%u\n", penv->thermal_mitigation); |
| } |
| |
| static ssize_t wcnss_thermal_mitigation_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| int value; |
| |
| if (!penv) |
| return -ENODEV; |
| |
| if (sscanf(buf, "%d", &value) != 1) |
| return -EINVAL; |
| penv->thermal_mitigation = value; |
| if (penv->tm_notify) |
| (penv->tm_notify)(dev, value); |
| return count; |
| } |
| |
| static DEVICE_ATTR(thermal_mitigation, S_IRUSR | S_IWUSR, |
| wcnss_thermal_mitigation_show, wcnss_thermal_mitigation_store); |
| |
| |
| static ssize_t wcnss_version_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| if (!penv) |
| return -ENODEV; |
| |
| return scnprintf(buf, PAGE_SIZE, "%s", penv->wcnss_version); |
| } |
| |
| static DEVICE_ATTR(wcnss_version, S_IRUSR, |
| wcnss_version_show, NULL); |
| |
| void wcnss_riva_dump_pmic_regs(void) |
| { |
| int i, rc; |
| u8 val; |
| |
| for (i = 0; i < ARRAY_SIZE(wcnss_pmic_reg_dump); i++) { |
| val = 0; |
| rc = pm8xxx_read_register(wcnss_pmic_reg_dump[i].reg_addr, |
| &val); |
| if (rc) |
| pr_err("PMIC READ: Failed to read addr = %d\n", |
| wcnss_pmic_reg_dump[i].reg_addr); |
| else |
| pr_info_ratelimited("PMIC READ: %s addr = %x, value = %x\n", |
| wcnss_pmic_reg_dump[i].reg_name, |
| wcnss_pmic_reg_dump[i].reg_addr, val); |
| } |
| } |
| |
| /* wcnss_reset_intr() is invoked when host drivers fails to |
| * communicate with WCNSS over SMD; so logging these registers |
| * helps to know WCNSS failure reason |
| */ |
| void wcnss_riva_log_debug_regs(void) |
| { |
| void __iomem *ccu_reg; |
| u32 reg = 0; |
| |
| ccu_reg = penv->riva_ccu_base + CCU_RIVA_INVALID_ADDR_OFFSET; |
| reg = readl_relaxed(ccu_reg); |
| pr_info_ratelimited("%s: CCU_CCPU_INVALID_ADDR %08x\n", __func__, reg); |
| |
| ccu_reg = penv->riva_ccu_base + CCU_RIVA_LAST_ADDR0_OFFSET; |
| reg = readl_relaxed(ccu_reg); |
| pr_info_ratelimited("%s: CCU_CCPU_LAST_ADDR0 %08x\n", __func__, reg); |
| |
| ccu_reg = penv->riva_ccu_base + CCU_RIVA_LAST_ADDR1_OFFSET; |
| reg = readl_relaxed(ccu_reg); |
| pr_info_ratelimited("%s: CCU_CCPU_LAST_ADDR1 %08x\n", __func__, reg); |
| |
| ccu_reg = penv->riva_ccu_base + CCU_RIVA_LAST_ADDR2_OFFSET; |
| reg = readl_relaxed(ccu_reg); |
| pr_info_ratelimited("%s: CCU_CCPU_LAST_ADDR2 %08x\n", __func__, reg); |
| wcnss_riva_dump_pmic_regs(); |
| |
| } |
| EXPORT_SYMBOL(wcnss_riva_log_debug_regs); |
| |
| /* Log pronto debug registers before sending reset interrupt */ |
| void wcnss_pronto_log_debug_regs(void) |
| { |
| void __iomem *reg_addr, *tst_addr, *tst_ctrl_addr; |
| u32 reg = 0, reg2 = 0, reg3 = 0, reg4 = 0; |
| |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_SPARE_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PRONTO_PMU_SPARE %08x\n", __func__, reg); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_COM_CPU_CBCR_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PRONTO_PMU_COM_CPU_CBCR %08x\n", |
| __func__, reg); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_COM_AHB_CBCR_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PRONTO_PMU_COM_AHB_CBCR %08x\n", |
| __func__, reg); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_CFG_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PRONTO_PMU_CFG %08x\n", __func__, reg); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_COM_CSR_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PRONTO_PMU_COM_CSR %08x\n", |
| __func__, reg); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_SOFT_RESET_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PRONTO_PMU_SOFT_RESET %08x\n", |
| __func__, reg); |
| |
| reg_addr = penv->pronto_saw2_base + PRONTO_SAW2_SPM_STS_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PRONTO_SAW2_SPM_STS %08x\n", __func__, reg); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_COM_GDSCR_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PRONTO_PMU_COM_GDSCR %08x\n", |
| __func__, reg); |
| reg >>= 31; |
| |
| if (!reg) { |
| pr_info_ratelimited("%s: Cannot log, Pronto common SS is power collapsed\n", |
| __func__); |
| return; |
| } |
| reg &= ~(PRONTO_PMU_COM_GDSCR_SW_COLLAPSE |
| | PRONTO_PMU_COM_GDSCR_HW_CTRL); |
| writel_relaxed(reg, reg_addr); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_CBCR_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| reg |= PRONTO_PMU_CBCR_CLK_EN; |
| writel_relaxed(reg, reg_addr); |
| |
| reg_addr = penv->pronto_a2xb_base + A2XB_CFG_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: A2XB_CFG_OFFSET %08x\n", __func__, reg); |
| |
| reg_addr = penv->pronto_a2xb_base + A2XB_INT_SRC_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: A2XB_INT_SRC_OFFSET %08x\n", __func__, reg); |
| |
| reg_addr = penv->pronto_a2xb_base + A2XB_ERR_INFO_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: A2XB_ERR_INFO_OFFSET %08x\n", __func__, reg); |
| |
| reg_addr = penv->pronto_ccpu_base + CCU_PRONTO_INVALID_ADDR_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: CCU_CCPU_INVALID_ADDR %08x\n", __func__, reg); |
| |
| reg_addr = penv->pronto_ccpu_base + CCU_PRONTO_LAST_ADDR0_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: CCU_CCPU_LAST_ADDR0 %08x\n", __func__, reg); |
| |
| reg_addr = penv->pronto_ccpu_base + CCU_PRONTO_LAST_ADDR1_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: CCU_CCPU_LAST_ADDR1 %08x\n", __func__, reg); |
| |
| reg_addr = penv->pronto_ccpu_base + CCU_PRONTO_LAST_ADDR2_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: CCU_CCPU_LAST_ADDR2 %08x\n", __func__, reg); |
| |
| reg_addr = penv->pronto_pll_base + PRONTO_PLL_STATUS_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PRONTO_PLL_STATUS %08x\n", __func__, reg); |
| |
| tst_addr = penv->pronto_a2xb_base + A2XB_TSTBUS_OFFSET; |
| tst_ctrl_addr = penv->pronto_a2xb_base + A2XB_TSTBUS_CTRL_OFFSET; |
| |
| /* read data FIFO */ |
| reg = 0; |
| reg = reg | WCNSS_TSTBUS_CTRL_EN | WCNSS_TSTBUS_CTRL_RDFIFO; |
| writel_relaxed(reg, tst_ctrl_addr); |
| reg = readl_relaxed(tst_addr); |
| pr_info_ratelimited("%s: Read data FIFO testbus %08x\n", |
| __func__, reg); |
| |
| /* command FIFO */ |
| reg = 0; |
| reg = reg | WCNSS_TSTBUS_CTRL_EN | WCNSS_TSTBUS_CTRL_CMDFIFO; |
| writel_relaxed(reg, tst_ctrl_addr); |
| reg = readl_relaxed(tst_addr); |
| pr_info_ratelimited("%s: Command FIFO testbus %08x\n", |
| __func__, reg); |
| |
| /* write data FIFO */ |
| reg = 0; |
| reg = reg | WCNSS_TSTBUS_CTRL_EN | WCNSS_TSTBUS_CTRL_WRFIFO; |
| writel_relaxed(reg, tst_ctrl_addr); |
| reg = readl_relaxed(tst_addr); |
| pr_info_ratelimited("%s: Rrite data FIFO testbus %08x\n", |
| __func__, reg); |
| |
| /* AXIM SEL CFG0 */ |
| reg = 0; |
| reg = reg | WCNSS_TSTBUS_CTRL_EN | WCNSS_TSTBUS_CTRL_AXIM | |
| WCNSS_TSTBUS_CTRL_AXIM_CFG0; |
| writel_relaxed(reg, tst_ctrl_addr); |
| reg = readl_relaxed(tst_addr); |
| pr_info_ratelimited("%s: AXIM SEL CFG0 testbus %08x\n", |
| __func__, reg); |
| |
| /* AXIM SEL CFG1 */ |
| reg = 0; |
| reg = reg | WCNSS_TSTBUS_CTRL_EN | WCNSS_TSTBUS_CTRL_AXIM | |
| WCNSS_TSTBUS_CTRL_AXIM_CFG1; |
| writel_relaxed(reg, tst_ctrl_addr); |
| reg = readl_relaxed(tst_addr); |
| pr_info_ratelimited("%s: AXIM SEL CFG1 testbus %08x\n", |
| __func__, reg); |
| |
| /* CTRL SEL CFG0 */ |
| reg = 0; |
| reg = reg | WCNSS_TSTBUS_CTRL_EN | WCNSS_TSTBUS_CTRL_CTRL | |
| WCNSS_TSTBUS_CTRL_CTRL_CFG0; |
| writel_relaxed(reg, tst_ctrl_addr); |
| reg = readl_relaxed(tst_addr); |
| pr_info_ratelimited("%s: CTRL SEL CFG0 testbus %08x\n", |
| __func__, reg); |
| |
| /* CTRL SEL CFG1 */ |
| reg = 0; |
| reg = reg | WCNSS_TSTBUS_CTRL_EN | WCNSS_TSTBUS_CTRL_CTRL | |
| WCNSS_TSTBUS_CTRL_CTRL_CFG1; |
| writel_relaxed(reg, tst_ctrl_addr); |
| reg = readl_relaxed(tst_addr); |
| pr_info_ratelimited("%s: CTRL SEL CFG1 testbus %08x\n", __func__, reg); |
| |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_WLAN_BCR_OFFSET; |
| reg = readl_relaxed(reg_addr); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_WLAN_GDSCR_OFFSET; |
| reg2 = readl_relaxed(reg_addr); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_WLAN_AHB_CBCR_OFFSET; |
| reg3 = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PMU_WLAN_AHB_CBCR %08x\n", __func__, reg3); |
| |
| reg_addr = penv->msm_wcnss_base + PRONTO_PMU_CPU_AHB_CMD_RCGR_OFFSET; |
| reg4 = readl_relaxed(reg_addr); |
| pr_info_ratelimited("%s: PMU_CPU_CMD_RCGR %08x\n", __func__, reg4); |
| |
| if ((reg & PRONTO_PMU_WLAN_BCR_BLK_ARES) || |
| (reg2 & PRONTO_PMU_WLAN_GDSCR_SW_COLLAPSE) || |
| (!(reg4 & PRONTO_PMU_CPU_AHB_CMD_RCGR_ROOT_EN)) || |
| (reg3 & PRONTO_PMU_WLAN_AHB_CBCR_CLK_OFF) || |
| (!(reg3 & PRONTO_PMU_WLAN_AHB_CBCR_CLK_EN))) { |
| pr_info_ratelimited("%s: Cannot log, wlan domain is power collapsed\n", |
| __func__); |
| return; |
| } |
| |
| reg = readl_relaxed(penv->wlan_tx_phy_aborts); |
| pr_info_ratelimited("%s: WLAN_TX_PHY_ABORTS %08x\n", __func__, reg); |
| |
| reg = readl_relaxed(penv->wlan_brdg_err_source); |
| pr_info_ratelimited("%s: WLAN_BRDG_ERR_SOURCE %08x\n", __func__, reg); |
| |
| reg = readl_relaxed(penv->wlan_tx_status); |
| pr_info_ratelimited("%s: WLAN_TX_STATUS %08x\n", __func__, reg); |
| |
| reg = readl_relaxed(penv->alarms_txctl); |
| pr_err("ALARMS_TXCTL %08x\n", reg); |
| |
| reg = readl_relaxed(penv->alarms_tactl); |
| pr_err("ALARMS_TACTL %08x\n", reg); |
| } |
| EXPORT_SYMBOL(wcnss_pronto_log_debug_regs); |
| |
| #ifdef CONFIG_WCNSS_REGISTER_DUMP_ON_BITE |
| void wcnss_log_debug_regs_on_bite(void) |
| { |
| if (wcnss_hardware_type() == WCNSS_PRONTO_HW) |
| wcnss_pronto_log_debug_regs(); |
| } |
| #endif |
| |
| /* interface to reset wcnss by sending the reset interrupt */ |
| void wcnss_reset_intr(void) |
| { |
| if (wcnss_hardware_type() == WCNSS_PRONTO_HW) { |
| wcnss_pronto_log_debug_regs(); |
| wmb(); |
| __raw_writel(1 << 16, penv->fiq_reg); |
| } else { |
| wcnss_riva_log_debug_regs(); |
| wmb(); |
| __raw_writel(1 << 24, MSM_APCS_GCC_BASE + 0x8); |
| } |
| } |
| EXPORT_SYMBOL(wcnss_reset_intr); |
| |
| static int wcnss_create_sysfs(struct device *dev) |
| { |
| int ret; |
| |
| if (!dev) |
| return -ENODEV; |
| |
| ret = device_create_file(dev, &dev_attr_serial_number); |
| if (ret) |
| return ret; |
| |
| ret = device_create_file(dev, &dev_attr_thermal_mitigation); |
| if (ret) |
| goto remove_serial; |
| |
| ret = device_create_file(dev, &dev_attr_wcnss_version); |
| if (ret) |
| goto remove_thermal; |
| |
| ret = device_create_file(dev, &dev_attr_wcnss_mac_addr); |
| if (ret) |
| goto remove_version; |
| |
| return 0; |
| |
| remove_version: |
| device_remove_file(dev, &dev_attr_wcnss_version); |
| remove_thermal: |
| device_remove_file(dev, &dev_attr_thermal_mitigation); |
| remove_serial: |
| device_remove_file(dev, &dev_attr_serial_number); |
| |
| return ret; |
| } |
| |
| static void wcnss_remove_sysfs(struct device *dev) |
| { |
| if (dev) { |
| device_remove_file(dev, &dev_attr_serial_number); |
| device_remove_file(dev, &dev_attr_thermal_mitigation); |
| device_remove_file(dev, &dev_attr_wcnss_version); |
| device_remove_file(dev, &dev_attr_wcnss_mac_addr); |
| } |
| } |
| static void wcnss_smd_notify_event(void *data, unsigned int event) |
| { |
| int len = 0; |
| |
| if (penv != data) { |
| pr_err("wcnss: invalid env pointer in smd callback\n"); |
| return; |
| } |
| switch (event) { |
| case SMD_EVENT_DATA: |
| len = smd_read_avail(penv->smd_ch); |
| if (len < 0) { |
| pr_err("wcnss: failed to read from smd %d\n", len); |
| return; |
| } |
| schedule_work(&penv->wcnssctrl_rx_work); |
| break; |
| |
| case SMD_EVENT_OPEN: |
| pr_debug("wcnss: opening WCNSS SMD channel :%s", |
| WCNSS_CTRL_CHANNEL); |
| schedule_work(&penv->wcnssctrl_version_work); |
| |
| break; |
| |
| case SMD_EVENT_CLOSE: |
| pr_debug("wcnss: closing WCNSS SMD channel :%s", |
| WCNSS_CTRL_CHANNEL); |
| penv->nv_downloaded = 0; |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| static void wcnss_post_bootup(struct work_struct *work) |
| { |
| if (do_not_cancel_vote == 1) { |
| pr_info("%s: Keeping APPS vote for Iris & WCNSS\n", __func__); |
| return; |
| } |
| |
| pr_info("%s: Cancel APPS vote for Iris & WCNSS\n", __func__); |
| |
| /* Since WCNSS is up, cancel any APPS vote for Iris & WCNSS VREGs */ |
| wcnss_wlan_power(&penv->pdev->dev, &penv->wlan_config, |
| WCNSS_WLAN_SWITCH_OFF, NULL); |
| |
| } |
| |
| static int |
| wcnss_pronto_gpios_config(struct device *dev, bool enable) |
| { |
| int rc = 0; |
| int i, j; |
| int WCNSS_WLAN_NUM_GPIOS = 5; |
| |
| for (i = 0; i < WCNSS_WLAN_NUM_GPIOS; i++) { |
| int gpio = of_get_gpio(dev->of_node, i); |
| if (enable) { |
| rc = gpio_request(gpio, "wcnss_wlan"); |
| if (rc) { |
| pr_err("WCNSS gpio_request %d err %d\n", |
| gpio, rc); |
| goto fail; |
| } |
| } else |
| gpio_free(gpio); |
| } |
| |
| return rc; |
| |
| fail: |
| for (j = WCNSS_WLAN_NUM_GPIOS-1; j >= 0; j--) { |
| int gpio = of_get_gpio(dev->of_node, i); |
| gpio_free(gpio); |
| } |
| return rc; |
| } |
| |
| static int |
| wcnss_gpios_config(struct resource *gpios_5wire, bool enable) |
| { |
| int i, j; |
| int rc = 0; |
| |
| for (i = gpios_5wire->start; i <= gpios_5wire->end; i++) { |
| if (enable) { |
| rc = gpio_request(i, gpios_5wire->name); |
| if (rc) { |
| pr_err("WCNSS gpio_request %d err %d\n", i, rc); |
| goto fail; |
| } |
| } else |
| gpio_free(i); |
| } |
| |
| return rc; |
| |
| fail: |
| for (j = i-1; j >= gpios_5wire->start; j--) |
| gpio_free(j); |
| return rc; |
| } |
| |
| static int __devinit |
| wcnss_wlan_ctrl_probe(struct platform_device *pdev) |
| { |
| if (!penv || !penv->triggered) |
| return -ENODEV; |
| |
| penv->smd_channel_ready = 1; |
| |
| pr_info("%s: SMD ctrl channel up\n", __func__); |
| |
| /* Schedule a work to do any post boot up activity */ |
| INIT_DELAYED_WORK(&penv->wcnss_work, wcnss_post_bootup); |
| schedule_delayed_work(&penv->wcnss_work, msecs_to_jiffies(10000)); |
| |
| return 0; |
| } |
| |
| void wcnss_flush_delayed_boot_votes() |
| { |
| flush_delayed_work(&penv->wcnss_work); |
| } |
| EXPORT_SYMBOL(wcnss_flush_delayed_boot_votes); |
| |
| static int __devexit |
| wcnss_wlan_ctrl_remove(struct platform_device *pdev) |
| { |
| if (penv) |
| penv->smd_channel_ready = 0; |
| |
| pr_info("%s: SMD ctrl channel down\n", __func__); |
| |
| return 0; |
| } |
| |
| |
| static struct platform_driver wcnss_wlan_ctrl_driver = { |
| .driver = { |
| .name = "WLAN_CTRL", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcnss_wlan_ctrl_probe, |
| .remove = __devexit_p(wcnss_wlan_ctrl_remove), |
| }; |
| |
| static int __devexit |
| wcnss_ctrl_remove(struct platform_device *pdev) |
| { |
| if (penv && penv->smd_ch) |
| smd_close(penv->smd_ch); |
| |
| return 0; |
| } |
| |
| static int __devinit |
| wcnss_ctrl_probe(struct platform_device *pdev) |
| { |
| int ret = 0; |
| |
| if (!penv || !penv->triggered) |
| return -ENODEV; |
| |
| ret = smd_named_open_on_edge(WCNSS_CTRL_CHANNEL, SMD_APPS_WCNSS, |
| &penv->smd_ch, penv, wcnss_smd_notify_event); |
| if (ret < 0) { |
| pr_err("wcnss: cannot open the smd command channel %s: %d\n", |
| WCNSS_CTRL_CHANNEL, ret); |
| return -ENODEV; |
| } |
| smd_disable_read_intr(penv->smd_ch); |
| |
| return 0; |
| } |
| |
| /* platform device for WCNSS_CTRL SMD channel */ |
| static struct platform_driver wcnss_ctrl_driver = { |
| .driver = { |
| .name = "WCNSS_CTRL", |
| .owner = THIS_MODULE, |
| }, |
| .probe = wcnss_ctrl_probe, |
| .remove = __devexit_p(wcnss_ctrl_remove), |
| }; |
| |
| struct device *wcnss_wlan_get_device(void) |
| { |
| if (penv && penv->pdev && penv->smd_channel_ready) |
| return &penv->pdev->dev; |
| return NULL; |
| } |
| EXPORT_SYMBOL(wcnss_wlan_get_device); |
| |
| struct platform_device *wcnss_get_platform_device(void) |
| { |
| if (penv && penv->pdev) |
| return penv->pdev; |
| return NULL; |
| } |
| EXPORT_SYMBOL(wcnss_get_platform_device); |
| |
| struct wcnss_wlan_config *wcnss_get_wlan_config(void) |
| { |
| if (penv && penv->pdev) |
| return &penv->wlan_config; |
| return NULL; |
| } |
| EXPORT_SYMBOL(wcnss_get_wlan_config); |
| |
| int wcnss_device_ready(void) |
| { |
| if (penv && penv->pdev && penv->nv_downloaded) |
| return 1; |
| return 0; |
| } |
| EXPORT_SYMBOL(wcnss_device_ready); |
| |
| |
| struct resource *wcnss_wlan_get_memory_map(struct device *dev) |
| { |
| if (penv && dev && (dev == &penv->pdev->dev) && penv->smd_channel_ready) |
| return penv->mmio_res; |
| return NULL; |
| } |
| EXPORT_SYMBOL(wcnss_wlan_get_memory_map); |
| |
| int wcnss_wlan_get_dxe_tx_irq(struct device *dev) |
| { |
| if (penv && dev && (dev == &penv->pdev->dev) && |
| penv->tx_irq_res && penv->smd_channel_ready) |
| return penv->tx_irq_res->start; |
| return WCNSS_WLAN_IRQ_INVALID; |
| } |
| EXPORT_SYMBOL(wcnss_wlan_get_dxe_tx_irq); |
| |
| int wcnss_wlan_get_dxe_rx_irq(struct device *dev) |
| { |
| if (penv && dev && (dev == &penv->pdev->dev) && |
| penv->rx_irq_res && penv->smd_channel_ready) |
| return penv->rx_irq_res->start; |
| return WCNSS_WLAN_IRQ_INVALID; |
| } |
| EXPORT_SYMBOL(wcnss_wlan_get_dxe_rx_irq); |
| |
| void wcnss_wlan_register_pm_ops(struct device *dev, |
| const struct dev_pm_ops *pm_ops) |
| { |
| if (penv && dev && (dev == &penv->pdev->dev) && pm_ops) |
| penv->pm_ops = pm_ops; |
| } |
| EXPORT_SYMBOL(wcnss_wlan_register_pm_ops); |
| |
| void wcnss_wlan_unregister_pm_ops(struct device *dev, |
| const struct dev_pm_ops *pm_ops) |
| { |
| if (penv && dev && (dev == &penv->pdev->dev) && pm_ops) { |
| if (pm_ops->suspend != penv->pm_ops->suspend || |
| pm_ops->resume != penv->pm_ops->resume) |
| pr_err("PM APIs dont match with registered APIs\n"); |
| penv->pm_ops = NULL; |
| } |
| } |
| EXPORT_SYMBOL(wcnss_wlan_unregister_pm_ops); |
| |
| void wcnss_register_thermal_mitigation(struct device *dev, |
| void (*tm_notify)(struct device *, int)) |
| { |
| if (penv && dev && tm_notify) |
| penv->tm_notify = tm_notify; |
| } |
| EXPORT_SYMBOL(wcnss_register_thermal_mitigation); |
| |
| void wcnss_unregister_thermal_mitigation( |
| void (*tm_notify)(struct device *, int)) |
| { |
| if (penv && tm_notify) { |
| if (tm_notify != penv->tm_notify) |
| pr_err("tm_notify doesn't match registered\n"); |
| penv->tm_notify = NULL; |
| } |
| } |
| EXPORT_SYMBOL(wcnss_unregister_thermal_mitigation); |
| |
| unsigned int wcnss_get_serial_number(void) |
| { |
| if (penv) |
| return penv->serial_number; |
| return 0; |
| } |
| EXPORT_SYMBOL(wcnss_get_serial_number); |
| |
| int wcnss_get_wlan_mac_address(char mac_addr[WLAN_MAC_ADDR_SIZE]) |
| { |
| if (!penv) |
| return -ENODEV; |
| |
| memcpy(mac_addr, penv->wlan_nv_macAddr, WLAN_MAC_ADDR_SIZE); |
| pr_debug("%s: Get MAC Addr:" MAC_ADDRESS_STR "\n", __func__, |
| penv->wlan_nv_macAddr[0], penv->wlan_nv_macAddr[1], |
| penv->wlan_nv_macAddr[2], penv->wlan_nv_macAddr[3], |
| penv->wlan_nv_macAddr[4], penv->wlan_nv_macAddr[5]); |
| return 0; |
| } |
| EXPORT_SYMBOL(wcnss_get_wlan_mac_address); |
| |
| static int enable_wcnss_suspend_notify; |
| |
| static int enable_wcnss_suspend_notify_set(const char *val, |
| struct kernel_param *kp) |
| { |
| int ret; |
| |
| ret = param_set_int(val, kp); |
| if (ret) |
| return ret; |
| |
| if (enable_wcnss_suspend_notify) |
| pr_debug("Suspend notification activated for wcnss\n"); |
| |
| return 0; |
| } |
| module_param_call(enable_wcnss_suspend_notify, enable_wcnss_suspend_notify_set, |
| param_get_int, &enable_wcnss_suspend_notify, S_IRUGO | S_IWUSR); |
| |
| int wcnss_xo_auto_detect_enabled(void) |
| { |
| return (has_autodetect_xo == 1 ? 1 : 0); |
| } |
| |
| int wcnss_wlan_iris_xo_mode(void) |
| { |
| if (penv && penv->pdev && penv->smd_channel_ready) |
| return penv->iris_xo_mode_set; |
| return -ENODEV; |
| } |
| EXPORT_SYMBOL(wcnss_wlan_iris_xo_mode); |
| |
| |
| void wcnss_suspend_notify(void) |
| { |
| void __iomem *pmu_spare_reg; |
| u32 reg = 0; |
| unsigned long flags; |
| |
| if (!enable_wcnss_suspend_notify) |
| return; |
| |
| if (wcnss_hardware_type() == WCNSS_PRONTO_HW) |
| return; |
| |
| /* For Riva */ |
| pmu_spare_reg = penv->msm_wcnss_base + RIVA_SPARE_OFFSET; |
| spin_lock_irqsave(®_spinlock, flags); |
| reg = readl_relaxed(pmu_spare_reg); |
| reg |= RIVA_SUSPEND_BIT; |
| writel_relaxed(reg, pmu_spare_reg); |
| spin_unlock_irqrestore(®_spinlock, flags); |
| } |
| EXPORT_SYMBOL(wcnss_suspend_notify); |
| |
| void wcnss_resume_notify(void) |
| { |
| void __iomem *pmu_spare_reg; |
| u32 reg = 0; |
| unsigned long flags; |
| |
| if (!enable_wcnss_suspend_notify) |
| return; |
| |
| if (wcnss_hardware_type() == WCNSS_PRONTO_HW) |
| return; |
| |
| /* For Riva */ |
| pmu_spare_reg = penv->msm_wcnss_base + RIVA_SPARE_OFFSET; |
| |
| spin_lock_irqsave(®_spinlock, flags); |
| reg = readl_relaxed(pmu_spare_reg); |
| reg &= ~RIVA_SUSPEND_BIT; |
| writel_relaxed(reg, pmu_spare_reg); |
| spin_unlock_irqrestore(®_spinlock, flags); |
| } |
| EXPORT_SYMBOL(wcnss_resume_notify); |
| |
| static int wcnss_wlan_suspend(struct device *dev) |
| { |
| if (penv && dev && (dev == &penv->pdev->dev) && |
| penv->smd_channel_ready && |
| penv->pm_ops && penv->pm_ops->suspend) |
| return penv->pm_ops->suspend(dev); |
| return 0; |
| } |
| |
| static int wcnss_wlan_resume(struct device *dev) |
| { |
| if (penv && dev && (dev == &penv->pdev->dev) && |
| penv->smd_channel_ready && |
| penv->pm_ops && penv->pm_ops->resume) |
| return penv->pm_ops->resume(dev); |
| return 0; |
| } |
| |
| void wcnss_prevent_suspend() |
| { |
| if (penv) |
| wake_lock(&penv->wcnss_wake_lock); |
| } |
| EXPORT_SYMBOL(wcnss_prevent_suspend); |
| |
| void wcnss_allow_suspend() |
| { |
| if (penv) |
| wake_unlock(&penv->wcnss_wake_lock); |
| } |
| EXPORT_SYMBOL(wcnss_allow_suspend); |
| |
| int wcnss_hardware_type(void) |
| { |
| if (penv) |
| return penv->wcnss_hw_type; |
| else |
| return -ENODEV; |
| } |
| EXPORT_SYMBOL(wcnss_hardware_type); |
| |
| int fw_cal_data_available(void) |
| { |
| if (penv) |
| return penv->fw_cal_available; |
| else |
| return -ENODEV; |
| } |
| |
| u32 wcnss_get_wlan_rx_buff_count(void) |
| { |
| if (penv) |
| return penv->wlan_rx_buff_count; |
| else |
| return WCNSS_DEF_WLAN_RX_BUFF_COUNT; |
| |
| } |
| EXPORT_SYMBOL(wcnss_get_wlan_rx_buff_count); |
| |
| int wcnss_set_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 ch_count) |
| { |
| if (penv && unsafe_ch_list && |
| (ch_count <= WCNSS_MAX_CH_NUM)) { |
| memcpy((char *)penv->unsafe_ch_list, |
| (char *)unsafe_ch_list, ch_count * sizeof(u16)); |
| penv->unsafe_ch_count = ch_count; |
| return 0; |
| } else |
| return -ENODEV; |
| } |
| EXPORT_SYMBOL(wcnss_set_wlan_unsafe_channel); |
| |
| int wcnss_get_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 buffer_size, |
| u16 *ch_count) |
| { |
| if (penv) { |
| if (buffer_size < penv->unsafe_ch_count * sizeof(u16)) |
| return -ENODEV; |
| memcpy((char *)unsafe_ch_list, |
| (char *)penv->unsafe_ch_list, |
| penv->unsafe_ch_count * sizeof(u16)); |
| *ch_count = penv->unsafe_ch_count; |
| return 0; |
| } else |
| return -ENODEV; |
| } |
| EXPORT_SYMBOL(wcnss_get_wlan_unsafe_channel); |
| |
| static int wcnss_smd_tx(void *data, int len) |
| { |
| int ret = 0; |
| |
| ret = smd_write_avail(penv->smd_ch); |
| if (ret < len) { |
| pr_err("wcnss: no space available for smd frame\n"); |
| return -ENOSPC; |
| } |
| ret = smd_write(penv->smd_ch, data, len); |
| if (ret < len) { |
| pr_err("wcnss: failed to write Command %d", len); |
| ret = -ENODEV; |
| } |
| return ret; |
| } |
| |
| static void wcnss_notify_vbat(enum qpnp_tm_state state, void *ctx) |
| { |
| mutex_lock(&penv->vbat_monitor_mutex); |
| cancel_delayed_work_sync(&penv->vbatt_work); |
| |
| if (state == ADC_TM_LOW_STATE) { |
| pr_debug("wcnss: low voltage notification triggered\n"); |
| penv->vbat_monitor_params.state_request = |
| ADC_TM_HIGH_THR_ENABLE; |
| penv->vbat_monitor_params.high_thr = WCNSS_VBATT_THRESHOLD + |
| WCNSS_VBATT_GUARD; |
| penv->vbat_monitor_params.low_thr = 0; |
| } else if (state == ADC_TM_HIGH_STATE) { |
| penv->vbat_monitor_params.state_request = |
| ADC_TM_LOW_THR_ENABLE; |
| penv->vbat_monitor_params.low_thr = WCNSS_VBATT_THRESHOLD - |
| WCNSS_VBATT_GUARD; |
| penv->vbat_monitor_params.high_thr = 0; |
| pr_debug("wcnss: high voltage notification triggered\n"); |
| } else { |
| pr_debug("wcnss: unknown voltage notification state: %d\n", |
| state); |
| mutex_unlock(&penv->vbat_monitor_mutex); |
| return; |
| } |
| pr_debug("wcnss: set low thr to %d and high to %d\n", |
| penv->vbat_monitor_params.low_thr, |
| penv->vbat_monitor_params.high_thr); |
| |
| qpnp_adc_tm_channel_measure(penv->adc_tm_dev, |
| &penv->vbat_monitor_params); |
| schedule_delayed_work(&penv->vbatt_work, msecs_to_jiffies(2000)); |
| mutex_unlock(&penv->vbat_monitor_mutex); |
| } |
| |
| static int wcnss_setup_vbat_monitoring(void) |
| { |
| int rc = -1; |
| |
| if (!penv->adc_tm_dev) { |
| pr_err("wcnss: not setting up vbatt\n"); |
| return rc; |
| } |
| penv->vbat_monitor_params.low_thr = WCNSS_VBATT_THRESHOLD; |
| penv->vbat_monitor_params.high_thr = WCNSS_VBATT_THRESHOLD; |
| penv->vbat_monitor_params.state_request = ADC_TM_HIGH_LOW_THR_ENABLE; |
| penv->vbat_monitor_params.channel = VBAT_SNS; |
| penv->vbat_monitor_params.btm_ctx = (void *)penv; |
| penv->vbat_monitor_params.timer_interval = ADC_MEAS1_INTERVAL_1S; |
| penv->vbat_monitor_params.threshold_notification = &wcnss_notify_vbat; |
| pr_debug("wcnss: set low thr to %d and high to %d\n", |
| penv->vbat_monitor_params.low_thr, |
| penv->vbat_monitor_params.high_thr); |
| |
| rc = qpnp_adc_tm_channel_measure(penv->adc_tm_dev, |
| &penv->vbat_monitor_params); |
| if (rc) |
| pr_err("wcnss: tm setup failed: %d\n", rc); |
| |
| return rc; |
| } |
| |
| static void wcnss_update_vbatt(struct work_struct *work) |
| { |
| struct vbatt_message vbatt_msg; |
| int ret = 0; |
| |
| vbatt_msg.hdr.msg_type = WCNSS_VBATT_LEVEL_IND; |
| vbatt_msg.hdr.msg_len = sizeof(struct vbatt_message); |
| vbatt_msg.vbatt.threshold = WCNSS_VBATT_THRESHOLD; |
| |
| mutex_lock(&penv->vbat_monitor_mutex); |
| if (penv->vbat_monitor_params.low_thr && |
| (penv->fw_vbatt_state == WCNSS_VBATT_LOW || |
| penv->fw_vbatt_state == WCNSS_CONFIG_UNSPECIFIED)) { |
| vbatt_msg.vbatt.curr_volt = WCNSS_VBATT_HIGH; |
| penv->fw_vbatt_state = WCNSS_VBATT_HIGH; |
| pr_debug("wcnss: send HIGH BATT to FW\n"); |
| } else if (!penv->vbat_monitor_params.low_thr && |
| (penv->fw_vbatt_state == WCNSS_VBATT_HIGH || |
| penv->fw_vbatt_state == WCNSS_CONFIG_UNSPECIFIED)){ |
| vbatt_msg.vbatt.curr_volt = WCNSS_VBATT_LOW; |
| penv->fw_vbatt_state = WCNSS_VBATT_LOW; |
| pr_debug("wcnss: send LOW BATT to FW\n"); |
| } else { |
| mutex_unlock(&penv->vbat_monitor_mutex); |
| return; |
| } |
| mutex_unlock(&penv->vbat_monitor_mutex); |
| ret = wcnss_smd_tx(&vbatt_msg, vbatt_msg.hdr.msg_len); |
| if (ret < 0) |
| pr_err("wcnss: smd tx failed\n"); |
| return; |
| } |
| |
| |
| static unsigned char wcnss_fw_status(void) |
| { |
| int len = 0; |
| int rc = 0; |
| |
| unsigned char fw_status = 0xFF; |
| |
| len = smd_read_avail(penv->smd_ch); |
| if (len < 1) { |
| pr_err("%s: invalid firmware status", __func__); |
| return fw_status; |
| } |
| |
| rc = smd_read(penv->smd_ch, &fw_status, 1); |
| if (rc < 0) { |
| pr_err("%s: incomplete data read from smd\n", __func__); |
| return fw_status; |
| } |
| return fw_status; |
| } |
| |
| static void wcnss_send_cal_rsp(unsigned char fw_status) |
| { |
| struct smd_msg_hdr *rsphdr; |
| unsigned char *msg = NULL; |
| int rc; |
| |
| msg = kmalloc((sizeof(struct smd_msg_hdr) + 1), GFP_KERNEL); |
| if (NULL == msg) { |
| pr_err("wcnss: %s: failed to get memory\n", __func__); |
| return; |
| } |
| |
| rsphdr = (struct smd_msg_hdr *)msg; |
| rsphdr->msg_type = WCNSS_CALDATA_UPLD_RSP; |
| rsphdr->msg_len = sizeof(struct smd_msg_hdr) + 1; |
| memcpy(msg+sizeof(struct smd_msg_hdr), &fw_status, 1); |
| |
| rc = wcnss_smd_tx(msg, rsphdr->msg_len); |
| if (rc < 0) |
| pr_err("wcnss: smd tx failed\n"); |
| |
| kfree(msg); |
| } |
| |
| /* Collect calibrated data from WCNSS */ |
| void extract_cal_data(int len) |
| { |
| int rc; |
| struct cal_data_params calhdr; |
| unsigned char fw_status = WCNSS_RESP_FAIL; |
| |
| if (len < sizeof(struct cal_data_params)) { |
| pr_err("wcnss: incomplete cal header length\n"); |
| return; |
| } |
| |
| rc = smd_read(penv->smd_ch, (unsigned char *)&calhdr, |
| sizeof(struct cal_data_params)); |
| if (rc < sizeof(struct cal_data_params)) { |
| pr_err("wcnss: incomplete cal header read from smd\n"); |
| return; |
| } |
| |
| if (penv->fw_cal_exp_frag != calhdr.frag_number) { |
| pr_err("wcnss: Invalid frgament"); |
| goto exit; |
| } |
| |
| if (calhdr.frag_size > WCNSS_MAX_FRAME_SIZE) { |
| pr_err("wcnss: Invalid fragment size"); |
| goto exit; |
| } |
| |
| if (penv->fw_cal_available) { |
| /* ignore cal upload from SSR */ |
| smd_read(penv->smd_ch, NULL, calhdr.frag_size); |
| penv->fw_cal_exp_frag++; |
| if (calhdr.msg_flags & LAST_FRAGMENT) { |
| penv->fw_cal_exp_frag = 0; |
| goto exit; |
| } |
| return; |
| } |
| |
| if (0 == calhdr.frag_number) { |
| if (calhdr.total_size > MAX_CALIBRATED_DATA_SIZE) { |
| pr_err("wcnss: Invalid cal data size %d", |
| calhdr.total_size); |
| goto exit; |
| } |
| kfree(penv->fw_cal_data); |
| penv->fw_cal_rcvd = 0; |
| penv->fw_cal_data = kmalloc(calhdr.total_size, |
| GFP_KERNEL); |
| if (penv->fw_cal_data == NULL) { |
| smd_read(penv->smd_ch, NULL, calhdr.frag_size); |
| goto exit; |
| } |
| } |
| |
| mutex_lock(&penv->dev_lock); |
| if (penv->fw_cal_rcvd + calhdr.frag_size > |
| MAX_CALIBRATED_DATA_SIZE) { |
| pr_err("calibrated data size is more than expected %d", |
| penv->fw_cal_rcvd + calhdr.frag_size); |
| penv->fw_cal_exp_frag = 0; |
| penv->fw_cal_rcvd = 0; |
| smd_read(penv->smd_ch, NULL, calhdr.frag_size); |
| goto unlock_exit; |
| } |
| |
| rc = smd_read(penv->smd_ch, penv->fw_cal_data + penv->fw_cal_rcvd, |
| calhdr.frag_size); |
| if (rc < calhdr.frag_size) |
| goto unlock_exit; |
| |
| penv->fw_cal_exp_frag++; |
| penv->fw_cal_rcvd += calhdr.frag_size; |
| |
| if (calhdr.msg_flags & LAST_FRAGMENT) { |
| penv->fw_cal_exp_frag = 0; |
| penv->fw_cal_available = true; |
| pr_info("wcnss: cal data collection completed\n"); |
| } |
| mutex_unlock(&penv->dev_lock); |
| wake_up(&penv->read_wait); |
| |
| if (penv->fw_cal_available) { |
| fw_status = WCNSS_RESP_SUCCESS; |
| wcnss_send_cal_rsp(fw_status); |
| } |
| return; |
| |
| unlock_exit: |
| mutex_unlock(&penv->dev_lock); |
| |
| exit: |
| wcnss_send_cal_rsp(fw_status); |
| return; |
| } |
| |
| |
| static void wcnssctrl_rx_handler(struct work_struct *worker) |
| { |
| int len = 0; |
| int rc = 0; |
| unsigned char buf[sizeof(struct wcnss_version)]; |
| unsigned char build[WCNSS_MAX_BUILD_VER_LEN+1]; |
| struct smd_msg_hdr *phdr; |
| struct smd_msg_hdr smd_msg; |
| struct wcnss_version *pversion; |
| int hw_type; |
| unsigned char fw_status = 0; |
| |
| len = smd_read_avail(penv->smd_ch); |
| if (len > WCNSS_MAX_FRAME_SIZE) { |
| pr_err("wcnss: frame larger than the allowed size\n"); |
| smd_read(penv->smd_ch, NULL, len); |
| return; |
| } |
| if (len <= 0) |
| return; |
| |
| rc = smd_read(penv->smd_ch, buf, sizeof(struct smd_msg_hdr)); |
| if (rc < sizeof(struct smd_msg_hdr)) { |
| pr_err("wcnss: incomplete header read from smd\n"); |
| return; |
| } |
| len -= sizeof(struct smd_msg_hdr); |
| |
| phdr = (struct smd_msg_hdr *)buf; |
| |
| switch (phdr->msg_type) { |
| |
| case WCNSS_VERSION_RSP: |
| if (len != sizeof(struct wcnss_version) |
| - sizeof(struct smd_msg_hdr)) { |
| pr_err("wcnss: invalid version data from wcnss %d\n", |
| len); |
| return; |
| } |
| rc = smd_read(penv->smd_ch, buf+sizeof(struct smd_msg_hdr), |
| len); |
| if (rc < len) { |
| pr_err("wcnss: incomplete data read from smd\n"); |
| return; |
| } |
| pversion = (struct wcnss_version *)buf; |
| penv->fw_major = pversion->major; |
| penv->fw_minor = pversion->minor; |
| snprintf(penv->wcnss_version, WCNSS_VERSION_LEN, |
| "%02x%02x%02x%02x", pversion->major, pversion->minor, |
| pversion->version, pversion->revision); |
| pr_info("wcnss: version %s\n", penv->wcnss_version); |
| /* schedule work to download nvbin to ccpu */ |
| hw_type = wcnss_hardware_type(); |
| switch (hw_type) { |
| case WCNSS_RIVA_HW: |
| /* supported only if riva major >= 1 and minor >= 4 */ |
| if ((pversion->major >= 1) && (pversion->minor >= 4)) { |
| pr_info("wcnss: schedule dnld work for riva\n"); |
| schedule_work(&penv->wcnssctrl_nvbin_dnld_work); |
| } |
| break; |
| |
| case WCNSS_PRONTO_HW: |
| smd_msg.msg_type = WCNSS_BUILD_VER_REQ; |
| smd_msg.msg_len = sizeof(smd_msg); |
| rc = wcnss_smd_tx(&smd_msg, smd_msg.msg_len); |
| if (rc < 0) |
| pr_err("wcnss: smd tx failed: %s\n", __func__); |
| |
| /* supported only if pronto major >= 1 and minor >= 4 */ |
| if ((pversion->major >= 1) && (pversion->minor >= 4)) { |
| pr_info("wcnss: schedule dnld work for pronto\n"); |
| schedule_work(&penv->wcnssctrl_nvbin_dnld_work); |
| } |
| break; |
| |
| default: |
| pr_info("wcnss: unknown hw type (%d), will not schedule dnld work\n", |
| hw_type); |
| break; |
| } |
| break; |
| |
| case WCNSS_BUILD_VER_RSP: |
| if (len > WCNSS_MAX_BUILD_VER_LEN) { |
| pr_err("wcnss: invalid build version data from wcnss %d\n", |
| len); |
| return; |
| } |
| rc = smd_read(penv->smd_ch, build, len); |
| if (rc < len) { |
| pr_err("wcnss: incomplete data read from smd\n"); |
| return; |
| } |
| build[len] = 0; |
| pr_info("wcnss: build version %s\n", build); |
| break; |
| |
| case WCNSS_NVBIN_DNLD_RSP: |
| penv->nv_downloaded = true; |
| fw_status = wcnss_fw_status(); |
| pr_debug("wcnss: received WCNSS_NVBIN_DNLD_RSP from ccpu %u\n", |
| fw_status); |
| wcnss_setup_vbat_monitoring(); |
| break; |
| |
| case WCNSS_CALDATA_DNLD_RSP: |
| penv->nv_downloaded = true; |
| fw_status = wcnss_fw_status(); |
| pr_debug("wcnss: received WCNSS_CALDATA_DNLD_RSP from ccpu %u\n", |
| fw_status); |
| break; |
| |
| case WCNSS_CALDATA_UPLD_REQ: |
| extract_cal_data(len); |
| break; |
| |
| default: |
| pr_err("wcnss: invalid message type %d\n", phdr->msg_type); |
| } |
| return; |
| } |
| |
| static void wcnss_send_version_req(struct work_struct *worker) |
| { |
| struct smd_msg_hdr smd_msg; |
| int ret = 0; |
| |
| smd_msg.msg_type = WCNSS_VERSION_REQ; |
| smd_msg.msg_len = sizeof(smd_msg); |
| ret = wcnss_smd_tx(&smd_msg, smd_msg.msg_len); |
| if (ret < 0) |
| pr_err("wcnss: smd tx failed\n"); |
| |
| return; |
| } |
| |
| static DECLARE_RWSEM(wcnss_pm_sem); |
| |
| static void wcnss_nvbin_dnld(void) |
| { |
| int ret = 0; |
| struct nvbin_dnld_req_msg *dnld_req_msg; |
| unsigned short total_fragments = 0; |
| unsigned short count = 0; |
| unsigned short retry_count = 0; |
| unsigned short cur_frag_size = 0; |
| unsigned char *outbuffer = NULL; |
| const void *nv_blob_addr = NULL; |
| unsigned int nv_blob_size = 0; |
| const struct firmware *nv = NULL; |
| struct device *dev = &penv->pdev->dev; |
| |
| down_read(&wcnss_pm_sem); |
| |
| ret = request_firmware(&nv, NVBIN_FILE, dev); |
| |
| if (ret || !nv || !nv->data || !nv->size) { |
| pr_err("wcnss: %s: request_firmware failed for %s\n", |
| __func__, NVBIN_FILE); |
| goto out; |
| } |
| |
| /* |
| * First 4 bytes in nv blob is validity bitmap. |
| * We cannot validate nv, so skip those 4 bytes. |
| */ |
| nv_blob_addr = nv->data + 4; |
| nv_blob_size = nv->size - 4; |
| |
| total_fragments = TOTALFRAGMENTS(nv_blob_size); |
| |
| pr_info("wcnss: NV bin size: %d, total_fragments: %d\n", |
| nv_blob_size, total_fragments); |
| |
| /* get buffer for nv bin dnld req message */ |
| outbuffer = kmalloc((sizeof(struct nvbin_dnld_req_msg) + |
| NV_FRAGMENT_SIZE), GFP_KERNEL); |
| |
| if (NULL == outbuffer) { |
| pr_err("wcnss: %s: failed to get buffer\n", __func__); |
| goto err_free_nv; |
| } |
| |
| dnld_req_msg = (struct nvbin_dnld_req_msg *)outbuffer; |
| |
| dnld_req_msg->hdr.msg_type = WCNSS_NVBIN_DNLD_REQ; |
| dnld_req_msg->dnld_req_params.msg_flags = 0; |
| |
| for (count = 0; count < total_fragments; count++) { |
| dnld_req_msg->dnld_req_params.frag_number = count; |
| |
| if (count == (total_fragments - 1)) { |
| /* last fragment, take care of boundry condition */ |
| cur_frag_size = nv_blob_size % NV_FRAGMENT_SIZE; |
| if (!cur_frag_size) |
| cur_frag_size = NV_FRAGMENT_SIZE; |
| |
| dnld_req_msg->dnld_req_params.msg_flags |= |
| LAST_FRAGMENT; |
| dnld_req_msg->dnld_req_params.msg_flags |= |
| CAN_RECEIVE_CALDATA; |
| } else { |
| cur_frag_size = NV_FRAGMENT_SIZE; |
| dnld_req_msg->dnld_req_params.msg_flags &= |
| ~LAST_FRAGMENT; |
| } |
| |
| dnld_req_msg->dnld_req_params.nvbin_buffer_size = |
| cur_frag_size; |
| |
| dnld_req_msg->hdr.msg_len = |
| sizeof(struct nvbin_dnld_req_msg) + cur_frag_size; |
| |
| /* copy NV fragment */ |
| memcpy((outbuffer + sizeof(struct nvbin_dnld_req_msg)), |
| (nv_blob_addr + count * NV_FRAGMENT_SIZE), |
| cur_frag_size); |
| |
| ret = wcnss_smd_tx(outbuffer, dnld_req_msg->hdr.msg_len); |
| |
| retry_count = 0; |
| while ((ret == -ENOSPC) && (retry_count <= 3)) { |
| pr_debug("wcnss: %s: smd tx failed, ENOSPC\n", |
| __func__); |
| pr_debug("fragment: %d, len: %d, TotFragments: %d, retry_count: %d\n", |
| count, dnld_req_msg->hdr.msg_len, |
| total_fragments, retry_count); |
| |
| /* wait and try again */ |
| msleep(20); |
| retry_count++; |
| ret = wcnss_smd_tx(outbuffer, |
| dnld_req_msg->hdr.msg_len); |
| } |
| |
| if (ret < 0) { |
| pr_err("wcnss: %s: smd tx failed\n", __func__); |
| pr_err("fragment %d, len: %d, TotFragments: %d, retry_count: %d\n", |
| count, dnld_req_msg->hdr.msg_len, |
| total_fragments, retry_count); |
| goto err_dnld; |
| } |
| } |
| |
| err_dnld: |
| /* free buffer */ |
| kfree(outbuffer); |
| |
| err_free_nv: |
| /* release firmware */ |
| release_firmware(nv); |
| |
| out: |
| up_read(&wcnss_pm_sem); |
| |
| return; |
| } |
| |
| |
| static void wcnss_caldata_dnld(const void *cal_data, |
| unsigned int cal_data_size, bool msg_to_follow) |
| { |
| int ret = 0; |
| struct cal_data_msg *cal_msg; |
| unsigned short total_fragments = 0; |
| unsigned short count = 0; |
| unsigned short retry_count = 0; |
| unsigned short cur_frag_size = 0; |
| unsigned char *outbuffer = NULL; |
| |
| total_fragments = TOTALFRAGMENTS(cal_data_size); |
| |
| outbuffer = kmalloc((sizeof(struct cal_data_msg) + |
| NV_FRAGMENT_SIZE), GFP_KERNEL); |
| |
| if (NULL == outbuffer) { |
| pr_err("wcnss: %s: failed to get buffer\n", __func__); |
| return; |
| } |
| |
| cal_msg = (struct cal_data_msg *)outbuffer; |
| |
| cal_msg->hdr.msg_type = WCNSS_CALDATA_DNLD_REQ; |
| cal_msg->cal_params.msg_flags = 0; |
| |
| for (count = 0; count < total_fragments; count++) { |
| cal_msg->cal_params.frag_number = count; |
| |
| if (count == (total_fragments - 1)) { |
| cur_frag_size = cal_data_size % NV_FRAGMENT_SIZE; |
| if (!cur_frag_size) |
| cur_frag_size = NV_FRAGMENT_SIZE; |
| |
| cal_msg->cal_params.msg_flags |
| |= LAST_FRAGMENT; |
| if (msg_to_follow) |
| cal_msg->cal_params.msg_flags |= |
| MESSAGE_TO_FOLLOW; |
| } else { |
| cur_frag_size = NV_FRAGMENT_SIZE; |
| cal_msg->cal_params.msg_flags &= |
| ~LAST_FRAGMENT; |
| } |
| |
| cal_msg->cal_params.total_size = cal_data_size; |
| cal_msg->cal_params.frag_size = |
| cur_frag_size; |
| |
| cal_msg->hdr.msg_len = |
| sizeof(struct cal_data_msg) + cur_frag_size; |
| |
| memcpy((outbuffer + sizeof(struct cal_data_msg)), |
| (cal_data + count * NV_FRAGMENT_SIZE), |
| cur_frag_size); |
| |
| ret = wcnss_smd_tx(outbuffer, cal_msg->hdr.msg_len); |
| |
| retry_count = 0; |
| while ((ret == -ENOSPC) && (retry_count <= 3)) { |
| pr_debug("wcnss: %s: smd tx failed, ENOSPC\n", |
| __func__); |
| pr_debug("fragment: %d, len: %d, TotFragments: %d, retry_count: %d\n", |
| count, cal_msg->hdr.msg_len, |
| total_fragments, retry_count); |
| |
| /* wait and try again */ |
| msleep(20); |
| retry_count++; |
| ret = wcnss_smd_tx(outbuffer, |
| cal_msg->hdr.msg_len); |
| } |
| |
| if (ret < 0) { |
| pr_err("wcnss: %s: smd tx failed\n", __func__); |
| pr_err("fragment %d, len: %d, TotFragments: %d, retry_count: %d\n", |
| count, cal_msg->hdr.msg_len, |
| total_fragments, retry_count); |
| goto err_dnld; |
| } |
| } |
| |
| |
| err_dnld: |
| /* free buffer */ |
| kfree(outbuffer); |
| |
| return; |
| } |
| |
| |
| static void wcnss_nvbin_dnld_main(struct work_struct *worker) |
| { |
| int retry = 0; |
| |
| if (!FW_CALDATA_CAPABLE()) |
| goto nv_download; |
| |
| if (!penv->fw_cal_available && WCNSS_CONFIG_UNSPECIFIED |
| != has_calibrated_data && !penv->user_cal_available) { |
| while (!penv->user_cal_available && retry++ < 5) |
| msleep(500); |
| } |
| if (penv->fw_cal_available) { |
| pr_info_ratelimited("wcnss: cal download, using fw cal"); |
| wcnss_caldata_dnld(penv->fw_cal_data, penv->fw_cal_rcvd, true); |
| |
| } else if (penv->user_cal_available) { |
| pr_info_ratelimited("wcnss: cal download, using user cal"); |
| wcnss_caldata_dnld(penv->user_cal_data, |
| penv->user_cal_rcvd, true); |
| } |
| |
| nv_download: |
| pr_info_ratelimited("wcnss: NV download"); |
| wcnss_nvbin_dnld(); |
| |
| return; |
| } |
| |
| static int wcnss_pm_notify(struct notifier_block *b, |
| unsigned long event, void *p) |
| { |
| switch (event) { |
| case PM_SUSPEND_PREPARE: |
| down_write(&wcnss_pm_sem); |
| break; |
| |
| case PM_POST_SUSPEND: |
| up_write(&wcnss_pm_sem); |
| break; |
| } |
| |
| return NOTIFY_DONE; |
| } |
| |
| static struct notifier_block wcnss_pm_notifier = { |
| .notifier_call = wcnss_pm_notify, |
| }; |
| |
| static int wcnss_ctrl_open(struct inode *inode, struct file *file) |
| { |
| int rc = 0; |
| |
| if (!penv || penv->ctrl_device_opened) |
| return -EFAULT; |
| |
| penv->ctrl_device_opened = 1; |
| |
| return rc; |
| } |
| |
| |
| void process_usr_ctrl_cmd(u8 *buf, size_t len) |
| { |
| u16 cmd = buf[0] << 8 | buf[1]; |
| |
| switch (cmd) { |
| |
| case WCNSS_USR_SERIAL_NUM: |
| if (WCNSS_MIN_SERIAL_LEN > len) { |
| pr_err("%s: Invalid serial number\n", __func__); |
| return; |
| } |
| penv->serial_number = buf[2] << 24 | buf[3] << 16 |
| | buf[4] << 8 | buf[5]; |
| break; |
| |
| case WCNSS_USR_HAS_CAL_DATA: |
| if (1 < buf[2]) |
| pr_err("%s: Invalid data for cal %d\n", __func__, |
| buf[2]); |
| has_calibrated_data = buf[2]; |
| break; |
| |
| default: |
| pr_err("%s: Invalid command %d\n", __func__, cmd); |
| break; |
| } |
| } |
| |
| static ssize_t wcnss_ctrl_write(struct file *fp, const char __user |
| *user_buffer, size_t count, loff_t *position) |
| { |
| int rc = 0; |
| u8 buf[WCNSS_MAX_CMD_LEN]; |
| |
| if (!penv || !penv->ctrl_device_opened || WCNSS_MAX_CMD_LEN < count |
| || WCNSS_MIN_CMD_LEN > count) |
| return -EFAULT; |
| |
| mutex_lock(&penv->ctrl_lock); |
| rc = copy_from_user(buf, user_buffer, count); |
| if (0 == rc) |
| process_usr_ctrl_cmd(buf, count); |
| |
| mutex_unlock(&penv->ctrl_lock); |
| |
| return rc; |
| } |
| |
| |
| static const struct file_operations wcnss_ctrl_fops = { |
| .owner = THIS_MODULE, |
| .open = wcnss_ctrl_open, |
| .write = wcnss_ctrl_write, |
| }; |
| |
| static struct miscdevice wcnss_usr_ctrl = { |
| .minor = MISC_DYNAMIC_MINOR, |
| .name = CTRL_DEVICE, |
| .fops = &wcnss_ctrl_fops, |
| }; |
| |
| static int |
| wcnss_trigger_config(struct platform_device *pdev) |
| { |
| int ret; |
| struct qcom_wcnss_opts *pdata; |
| unsigned long wcnss_phys_addr; |
| int size = 0; |
| struct resource *res; |
| int has_pronto_hw = of_property_read_bool(pdev->dev.of_node, |
| "qcom,has-pronto-hw"); |
| |
| if (of_property_read_u32(pdev->dev.of_node, |
| "qcom,wlan-rx-buff-count", &penv->wlan_rx_buff_count)) { |
| penv->wlan_rx_buff_count = WCNSS_DEF_WLAN_RX_BUFF_COUNT; |
| } |
| |
| /* make sure we are only triggered once */ |
| if (penv->triggered) |
| return 0; |
| penv->triggered = 1; |
| |
| /* initialize the WCNSS device configuration */ |
| pdata = pdev->dev.platform_data; |
| if (WCNSS_CONFIG_UNSPECIFIED == has_48mhz_xo) { |
| if (has_pronto_hw) { |
| has_48mhz_xo = of_property_read_bool(pdev->dev.of_node, |
| "qcom,has-48mhz-xo"); |
| } else { |
| has_48mhz_xo = pdata->has_48mhz_xo; |
| } |
| } |
| penv->wcnss_hw_type = (has_pronto_hw) ? WCNSS_PRONTO_HW : WCNSS_RIVA_HW; |
| penv->wlan_config.use_48mhz_xo = has_48mhz_xo; |
| |
| if (WCNSS_CONFIG_UNSPECIFIED == has_autodetect_xo && has_pronto_hw) { |
| has_autodetect_xo = of_property_read_bool(pdev->dev.of_node, |
| "qcom,has-autodetect-xo"); |
| } |
| |
| penv->thermal_mitigation = 0; |
| strlcpy(penv->wcnss_version, "INVALID", WCNSS_VERSION_LEN); |
| |
| /* Configure 5 wire GPIOs */ |
| if (!has_pronto_hw) { |
| penv->gpios_5wire = platform_get_resource_byname(pdev, |
| IORESOURCE_IO, "wcnss_gpios_5wire"); |
| |
| /* allocate 5-wire GPIO resources */ |
| if (!penv->gpios_5wire) { |
| dev_err(&pdev->dev, "insufficient IO resources\n"); |
| ret = -ENOENT; |
| goto fail_gpio_res; |
| } |
| ret = wcnss_gpios_config(penv->gpios_5wire, true); |
| } else |
| ret = wcnss_pronto_gpios_config(&pdev->dev, true); |
| |
| if (ret) { |
| dev_err(&pdev->dev, "WCNSS gpios config failed.\n"); |
| goto fail_gpio_res; |
| } |
| |
| /* power up the WCNSS */ |
| ret = wcnss_wlan_power(&pdev->dev, &penv->wlan_config, |
| WCNSS_WLAN_SWITCH_ON, |
| &penv->iris_xo_mode_set); |
| if (ret) { |
| dev_err(&pdev->dev, "WCNSS Power-up failed.\n"); |
| goto fail_power; |
| } |
| |
| /* allocate resources */ |
| penv->mmio_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
| "wcnss_mmio"); |
| penv->tx_irq_res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, |
| "wcnss_wlantx_irq"); |
| penv->rx_irq_res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, |
| "wcnss_wlanrx_irq"); |
| |
| if (!(penv->mmio_res && penv->tx_irq_res && penv->rx_irq_res)) { |
| dev_err(&pdev->dev, "insufficient resources\n"); |
| ret = -ENOENT; |
| goto fail_res; |
| } |
| INIT_WORK(&penv->wcnssctrl_rx_work, wcnssctrl_rx_handler); |
| INIT_WORK(&penv->wcnssctrl_version_work, wcnss_send_version_req); |
| INIT_WORK(&penv->wcnssctrl_nvbin_dnld_work, wcnss_nvbin_dnld_main); |
| |
| wake_lock_init(&penv->wcnss_wake_lock, WAKE_LOCK_SUSPEND, "wcnss"); |
| |
| if (wcnss_hardware_type() == WCNSS_PRONTO_HW) { |
| size = 0x3000; |
| wcnss_phys_addr = MSM_PRONTO_PHYS; |
| } else { |
| wcnss_phys_addr = MSM_RIVA_PHYS; |
| size = SZ_256; |
| } |
| |
| penv->msm_wcnss_base = ioremap(wcnss_phys_addr, size); |
| if (!penv->msm_wcnss_base) { |
| ret = -ENOMEM; |
| pr_err("%s: ioremap wcnss physical failed\n", __func__); |
| goto fail_ioremap; |
| } |
| |
| if (wcnss_hardware_type() == WCNSS_RIVA_HW) { |
| penv->riva_ccu_base = ioremap(MSM_RIVA_CCU_BASE, SZ_512); |
| if (!penv->riva_ccu_base) { |
| ret = -ENOMEM; |
| pr_err("%s: ioremap wcnss physical failed\n", __func__); |
| goto fail_ioremap2; |
| } |
| } else { |
| penv->pronto_a2xb_base = ioremap(MSM_PRONTO_A2XB_BASE, SZ_512); |
| if (!penv->pronto_a2xb_base) { |
| ret = -ENOMEM; |
| pr_err("%s: ioremap wcnss physical failed\n", __func__); |
| goto fail_ioremap2; |
| } |
| penv->pronto_ccpu_base = ioremap(MSM_PRONTO_CCPU_BASE, SZ_512); |
| if (!penv->pronto_ccpu_base) { |
| ret = -ENOMEM; |
| pr_err("%s: ioremap wcnss physical failed\n", __func__); |
| goto fail_ioremap3; |
| } |
| /* for reset FIQ */ |
| res = platform_get_resource_byname(penv->pdev, |
| IORESOURCE_MEM, "wcnss_fiq"); |
| if (!res) { |
| dev_err(&pdev->dev, "insufficient irq mem resources\n"); |
| ret = -ENOENT; |
| goto fail_ioremap4; |
| } |
| penv->fiq_reg = ioremap_nocache(res->start, resource_size(res)); |
| if (!penv->fiq_reg) { |
| pr_err("wcnss: %s: ioremap_nocache() failed fiq_reg addr:%pr\n", |
| __func__, &res->start); |
| ret = -ENOMEM; |
| goto fail_ioremap4; |
| } |
| penv->pronto_saw2_base = ioremap_nocache(MSM_PRONTO_SAW2_BASE, |
| SZ_32); |
| if (!penv->pronto_saw2_base) { |
| pr_err("%s: ioremap wcnss physical(saw2) failed\n", |
| __func__); |
| ret = -ENOMEM; |
| goto fail_ioremap5; |
| } |
| penv->pronto_pll_base = ioremap_nocache(MSM_PRONTO_PLL_BASE, |
| SZ_64); |
| if (!penv->pronto_pll_base) { |
| pr_err("%s: ioremap wcnss physical(pll) failed\n", |
| __func__); |
| ret = -ENOMEM; |
| goto fail_ioremap6; |
| } |
| |
| penv->wlan_tx_phy_aborts = ioremap(MSM_PRONTO_TXP_PHY_ABORT, |
| SZ_8); |
| if (!penv->wlan_tx_phy_aborts) { |
| ret = -ENOMEM; |
| pr_err("%s: ioremap wlan TX PHY failed\n", __func__); |
| goto fail_ioremap7; |
| } |
| penv->wlan_brdg_err_source = ioremap(MSM_PRONTO_BRDG_ERR_SRC, |
| SZ_8); |
| if (!penv->wlan_brdg_err_source) { |
| ret = -ENOMEM; |
| pr_err("%s: ioremap wlan BRDG ERR failed\n", __func__); |
| goto fail_ioremap8; |
| } |
| penv->wlan_tx_status = ioremap(MSM_PRONTO_TXP_STATUS, SZ_8); |
| if (!penv->wlan_tx_status) { |
| ret = -ENOMEM; |
| pr_err("%s: ioremap wlan TX STATUS failed\n", __func__); |
| goto fail_ioremap9; |
| } |
| penv->alarms_txctl = ioremap(MSM_PRONTO_ALARMS_TXCTL, SZ_8); |
| if (!penv->alarms_txctl) { |
| ret = -ENOMEM; |
| pr_err("%s: ioremap alarms TXCTL failed\n", __func__); |
| goto fail_ioremap10; |
| } |
| penv->alarms_tactl = ioremap(MSM_PRONTO_ALARMS_TACTL, SZ_8); |
| if (!penv->alarms_tactl) { |
| ret = -ENOMEM; |
| pr_err("%s: ioremap alarms TACTL failed\n", __func__); |
| goto fail_ioremap11; |
| } |
| } |
| penv->adc_tm_dev = qpnp_get_adc_tm(&penv->pdev->dev, "wcnss"); |
| if (IS_ERR(penv->adc_tm_dev)) { |
| pr_err("%s: adc get failed\n", __func__); |
| penv->adc_tm_dev = NULL; |
| } else { |
| INIT_DELAYED_WORK(&penv->vbatt_work, wcnss_update_vbatt); |
| penv->fw_vbatt_state = WCNSS_CONFIG_UNSPECIFIED; |
| } |
| |
| /* trigger initialization of the WCNSS */ |
| penv->pil = subsystem_get(WCNSS_PIL_DEVICE); |
| if (IS_ERR(penv->pil)) { |
| dev_err(&pdev->dev, "Peripheral Loader failed on WCNSS.\n"); |
| ret = PTR_ERR(penv->pil); |
| wcnss_pronto_log_debug_regs(); |
| penv->pil = NULL; |
| goto fail_pil; |
| } |
| |
| return 0; |
| |
| fail_pil: |
| if (penv->riva_ccu_base) |
| iounmap(penv->riva_ccu_base); |
| if (penv->alarms_tactl) |
| iounmap(penv->alarms_tactl); |
| fail_ioremap11: |
| if (penv->alarms_txctl) |
| iounmap(penv->alarms_txctl); |
| fail_ioremap10: |
| if (penv->wlan_tx_status) |
| iounmap(penv->wlan_tx_status); |
| fail_ioremap9: |
| if (penv->wlan_brdg_err_source) |
| iounmap(penv->wlan_brdg_err_source); |
| fail_ioremap8: |
| if (penv->wlan_tx_phy_aborts) |
| iounmap(penv->wlan_tx_phy_aborts); |
| fail_ioremap7: |
| if (penv->pronto_pll_base) |
| iounmap(penv->pronto_pll_base); |
| fail_ioremap6: |
| if (penv->pronto_saw2_base) |
| iounmap(penv->pronto_saw2_base); |
| fail_ioremap5: |
| if (penv->fiq_reg) |
| iounmap(penv->fiq_reg); |
| fail_ioremap4: |
| if (penv->pronto_ccpu_base) |
| iounmap(penv->pronto_ccpu_base); |
| fail_ioremap3: |
| if (penv->pronto_a2xb_base) |
| iounmap(penv->pronto_a2xb_base); |
| fail_ioremap2: |
| if (penv->msm_wcnss_base) |
| iounmap(penv->msm_wcnss_base); |
| fail_ioremap: |
| wake_lock_destroy(&penv->wcnss_wake_lock); |
| fail_res: |
| wcnss_wlan_power(&pdev->dev, &penv->wlan_config, |
| WCNSS_WLAN_SWITCH_OFF, NULL); |
| fail_power: |
| if (has_pronto_hw) |
| wcnss_pronto_gpios_config(&pdev->dev, false); |
| else |
| wcnss_gpios_config(penv->gpios_5wire, false); |
| fail_gpio_res: |
| penv = NULL; |
| return ret; |
| } |
| |
| static int wcnss_node_open(struct inode *inode, struct file *file) |
| { |
| struct platform_device *pdev; |
| int rc = 0; |
| |
| if (!penv) |
| return -EFAULT; |
| |
| if (!penv->triggered) { |
| pr_info(DEVICE " triggered by userspace\n"); |
| pdev = penv->pdev; |
| rc = wcnss_trigger_config(pdev); |
| if (rc) |
| return -EFAULT; |
| } |
| |
| mutex_lock(&penv->dev_lock); |
| penv->user_cal_rcvd = 0; |
| penv->user_cal_read = 0; |
| penv->user_cal_available = false; |
| penv->user_cal_data = NULL; |
| penv->device_opened = 1; |
| mutex_unlock(&penv->dev_lock); |
| |
| return rc; |
| } |
| |
| static ssize_t wcnss_wlan_read(struct file *fp, char __user |
| *buffer, size_t count, loff_t *position) |
| { |
| int rc = 0; |
| |
| if (!penv || !penv->device_opened) |
| return -EFAULT; |
| |
| rc = wait_event_interruptible(penv->read_wait, penv->fw_cal_rcvd |
| > penv->user_cal_read || penv->fw_cal_available); |
| |
| if (rc < 0) |
| return rc; |
| |
| mutex_lock(&penv->dev_lock); |
| |
| if (penv->fw_cal_available && penv->fw_cal_rcvd |
| == penv->user_cal_read) { |
| rc = 0; |
| goto exit; |
| } |
| |
| if (count > penv->fw_cal_rcvd - penv->user_cal_read) |
| count = penv->fw_cal_rcvd - penv->user_cal_read; |
| |
| rc = copy_to_user(buffer, penv->fw_cal_data + |
| penv->user_cal_read, count); |
| if (rc == 0) { |
| penv->user_cal_read += count; |
| rc = count; |
| } |
| |
| exit: |
| mutex_unlock(&penv->dev_lock); |
| return rc; |
| } |
| |
| /* first (valid) write to this device should be 4 bytes cal file size */ |
| static ssize_t wcnss_wlan_write(struct file *fp, const char __user |
| *user_buffer, size_t count, loff_t *position) |
| { |
| int rc = 0; |
| size_t size = 0; |
| |
| if (!penv || !penv->device_opened || penv->user_cal_available) |
| return -EFAULT; |
| |
| if (penv->user_cal_rcvd == 0 && count >= 4 |
| && !penv->user_cal_data) { |
| rc = copy_from_user((void *)&size, user_buffer, 4); |
| if (!size || size > MAX_CALIBRATED_DATA_SIZE) { |
| pr_err(DEVICE " invalid size to write %d\n", size); |
| return -EFAULT; |
| } |
| |
| rc += count; |
| count -= 4; |
| penv->user_cal_exp_size = size; |
| penv->user_cal_data = kmalloc(size, GFP_KERNEL); |
| if (penv->user_cal_data == NULL) { |
| pr_err(DEVICE " no memory to write\n"); |
| return -ENOMEM; |
| } |
| if (0 == count) |
| goto exit; |
| |
| } else if (penv->user_cal_rcvd == 0 && count < 4) |
| return -EFAULT; |
| |
| if ((UINT32_MAX - count < penv->user_cal_rcvd) || |
| MAX_CALIBRATED_DATA_SIZE < count + penv->user_cal_rcvd) { |
| pr_err(DEVICE " invalid size to write %d\n", count + |
| penv->user_cal_rcvd); |
| rc = -ENOMEM; |
| goto exit; |
| } |
| rc = copy_from_user((void *)penv->user_cal_data + |
| penv->user_cal_rcvd, user_buffer, count); |
| if (0 == rc) { |
| penv->user_cal_rcvd += count; |
| rc += count; |
| } |
| if (penv->user_cal_rcvd == penv->user_cal_exp_size) { |
| penv->user_cal_available = true; |
| pr_info_ratelimited("wcnss: user cal written"); |
| } |
| |
| exit: |
| return rc; |
| } |
| |
| |
| static const struct file_operations wcnss_node_fops = { |
| .owner = THIS_MODULE, |
| .open = wcnss_node_open, |
| .read = wcnss_wlan_read, |
| .write = wcnss_wlan_write, |
| }; |
| |
| static struct miscdevice wcnss_misc = { |
| .minor = MISC_DYNAMIC_MINOR, |
| .name = DEVICE, |
| .fops = &wcnss_node_fops, |
| }; |
| |
| static int __devinit |
| wcnss_wlan_probe(struct platform_device *pdev) |
| { |
| int ret = 0; |
| |
| /* verify we haven't been called more than once */ |
| if (penv) { |
| dev_err(&pdev->dev, "cannot handle multiple devices.\n"); |
| return -ENODEV; |
| } |
| |
| /* create an environment to track the device */ |
| penv = devm_kzalloc(&pdev->dev, sizeof(*penv), GFP_KERNEL); |
| if (!penv) { |
| dev_err(&pdev->dev, "cannot allocate device memory.\n"); |
| return -ENOMEM; |
| } |
| penv->pdev = pdev; |
| |
| /* register sysfs entries */ |
| ret = wcnss_create_sysfs(&pdev->dev); |
| if (ret) { |
| penv = NULL; |
| return -ENOENT; |
| } |
| |
| mutex_init(&penv->dev_lock); |
| mutex_init(&penv->ctrl_lock); |
| mutex_init(&penv->vbat_monitor_mutex); |
| init_waitqueue_head(&penv->read_wait); |
| |
| /* Since we were built into the kernel we'll be called as part |
| * of kernel initialization. We don't know if userspace |
| * applications are available to service PIL at this time |
| * (they probably are not), so we simply create a device node |
| * here. When userspace is available it should touch the |
| * device so that we know that WCNSS configuration can take |
| * place |
| */ |
| pr_info(DEVICE " probed in built-in mode\n"); |
| |
| misc_register(&wcnss_usr_ctrl); |
| |
| return misc_register(&wcnss_misc); |
| |
| } |
| |
| static int __devexit |
| wcnss_wlan_remove(struct platform_device *pdev) |
| { |
| wcnss_remove_sysfs(&pdev->dev); |
| penv = NULL; |
| return 0; |
| } |
| |
| |
| static const struct dev_pm_ops wcnss_wlan_pm_ops = { |
| .suspend = wcnss_wlan_suspend, |
| .resume = wcnss_wlan_resume, |
| }; |
| |
| #ifdef CONFIG_WCNSS_CORE_PRONTO |
| static struct of_device_id msm_wcnss_pronto_match[] = { |
| {.compatible = "qcom,wcnss_wlan"}, |
| {} |
| }; |
| #endif |
| |
| static struct platform_driver wcnss_wlan_driver = { |
| .driver = { |
| .name = DEVICE, |
| .owner = THIS_MODULE, |
| .pm = &wcnss_wlan_pm_ops, |
| #ifdef CONFIG_WCNSS_CORE_PRONTO |
| .of_match_table = msm_wcnss_pronto_match, |
| #endif |
| }, |
| .probe = wcnss_wlan_probe, |
| .remove = __devexit_p(wcnss_wlan_remove), |
| }; |
| |
| static int __init wcnss_wlan_init(void) |
| { |
| int ret = 0; |
| |
| platform_driver_register(&wcnss_wlan_driver); |
| platform_driver_register(&wcnss_wlan_ctrl_driver); |
| platform_driver_register(&wcnss_ctrl_driver); |
| register_pm_notifier(&wcnss_pm_notifier); |
| #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| ret = wcnss_prealloc_init(); |
| if (ret < 0) |
| pr_err("wcnss: pre-allocation failed\n"); |
| #endif |
| |
| return ret; |
| } |
| |
| static void __exit wcnss_wlan_exit(void) |
| { |
| if (penv) { |
| if (penv->pil) |
| subsystem_put(penv->pil); |
| penv = NULL; |
| } |
| |
| #ifdef CONFIG_WCNSS_MEM_PRE_ALLOC |
| wcnss_prealloc_deinit(); |
| #endif |
| unregister_pm_notifier(&wcnss_pm_notifier); |
| platform_driver_unregister(&wcnss_ctrl_driver); |
| platform_driver_unregister(&wcnss_wlan_ctrl_driver); |
| platform_driver_unregister(&wcnss_wlan_driver); |
| } |
| |
| module_init(wcnss_wlan_init); |
| module_exit(wcnss_wlan_exit); |
| |
| MODULE_LICENSE("GPL v2"); |
| MODULE_VERSION(VERSION); |
| MODULE_DESCRIPTION(DEVICE "Driver"); |