| /* Copyright (c) 2008-2013, 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/slab.h> |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/device.h> |
| #include <linux/err.h> |
| #include <linux/platform_device.h> |
| #include <linux/sched.h> |
| #include <linux/ratelimit.h> |
| #include <linux/workqueue.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/diagchar.h> |
| #include <linux/delay.h> |
| #include <linux/reboot.h> |
| #include <linux/of.h> |
| #include <linux/kmemleak.h> |
| #ifdef CONFIG_DIAG_OVER_USB |
| #include <mach/usbdiag.h> |
| #endif |
| #include <mach/msm_smd.h> |
| #include <mach/socinfo.h> |
| #include <mach/restart.h> |
| #include "diagmem.h" |
| #include "diagchar.h" |
| #include "diagfwd.h" |
| #include "diagfwd_cntl.h" |
| #include "diagfwd_hsic.h" |
| #include "diagchar_hdlc.h" |
| #ifdef CONFIG_DIAG_SDIO_PIPE |
| #include "diagfwd_sdio.h" |
| #endif |
| #include "diag_dci.h" |
| #include "diag_masks.h" |
| #include "diagfwd_bridge.h" |
| |
| #define MODE_CMD 41 |
| #define RESET_ID 2 |
| |
| #define STM_CMD_VERSION_OFFSET 4 |
| #define STM_CMD_MASK_OFFSET 5 |
| #define STM_CMD_DATA_OFFSET 6 |
| #define STM_CMD_NUM_BYTES 7 |
| |
| #define STM_RSP_VALID_INDEX 7 |
| #define STM_RSP_SUPPORTED_INDEX 8 |
| #define STM_RSP_SMD_COMPLY_INDEX 9 |
| #define STM_RSP_NUM_BYTES 10 |
| |
| int diag_debug_buf_idx; |
| unsigned char diag_debug_buf[1024]; |
| /* Number of entries in table of buffers */ |
| static unsigned int buf_tbl_size = 10; |
| struct diag_master_table entry; |
| struct diag_send_desc_type send = { NULL, NULL, DIAG_STATE_START, 0 }; |
| struct diag_hdlc_dest_type enc = { NULL, NULL, 0 }; |
| int wrap_enabled; |
| uint16_t wrap_count; |
| |
| void encode_rsp_and_send(int buf_length) |
| { |
| struct diag_smd_info *data = &(driver->smd_data[MODEM_DATA]); |
| |
| if (buf_length > APPS_BUF_SIZE) { |
| pr_err("diag: In %s, invalid len %d, permissible len %d\n", |
| __func__, buf_length, APPS_BUF_SIZE); |
| return; |
| } |
| |
| send.state = DIAG_STATE_START; |
| send.pkt = driver->apps_rsp_buf; |
| send.last = (void *)(driver->apps_rsp_buf + buf_length); |
| send.terminate = 1; |
| if (!data->in_busy_1) { |
| enc.dest = data->buf_in_1; |
| enc.dest_last = (void *)(data->buf_in_1 + APPS_BUF_SIZE - 1); |
| diag_hdlc_encode(&send, &enc); |
| data->write_ptr_1->buf = data->buf_in_1; |
| data->write_ptr_1->length = (int)(enc.dest - |
| (void *)(data->buf_in_1)); |
| data->in_busy_1 = 1; |
| diag_device_write(data->buf_in_1, data->peripheral, |
| data->write_ptr_1); |
| memset(driver->apps_rsp_buf, '\0', APPS_BUF_SIZE); |
| } |
| } |
| |
| /* Determine if this device uses a device tree */ |
| #ifdef CONFIG_OF |
| static int has_device_tree(void) |
| { |
| struct device_node *node; |
| |
| node = of_find_node_by_path("/"); |
| if (node) { |
| of_node_put(node); |
| return 1; |
| } |
| return 0; |
| } |
| #else |
| static int has_device_tree(void) |
| { |
| return 0; |
| } |
| #endif |
| |
| int chk_config_get_id(void) |
| { |
| /* For all Fusion targets, Modem will always be present */ |
| if (machine_is_msm8x60_fusion() || machine_is_msm8x60_fusn_ffa()) |
| return 0; |
| |
| if (driver->use_device_tree) { |
| if (machine_is_msm8974()) |
| return MSM8974_TOOLS_ID; |
| else |
| return 0; |
| } else { |
| switch (socinfo_get_msm_cpu()) { |
| case MSM_CPU_8X60: |
| return APQ8060_TOOLS_ID; |
| case MSM_CPU_8960: |
| case MSM_CPU_8960AB: |
| return AO8960_TOOLS_ID; |
| case MSM_CPU_8064: |
| case MSM_CPU_8064AB: |
| case MSM_CPU_8064AA: |
| return APQ8064_TOOLS_ID; |
| case MSM_CPU_8930: |
| case MSM_CPU_8930AA: |
| case MSM_CPU_8930AB: |
| return MSM8930_TOOLS_ID; |
| case MSM_CPU_8974: |
| return MSM8974_TOOLS_ID; |
| case MSM_CPU_8625: |
| return MSM8625_TOOLS_ID; |
| default: |
| return 0; |
| } |
| } |
| } |
| |
| /* |
| * This will return TRUE for targets which support apps only mode and hence SSR. |
| * This applies to 8960 and newer targets. |
| */ |
| int chk_apps_only(void) |
| { |
| if (driver->use_device_tree) |
| return 1; |
| |
| switch (socinfo_get_msm_cpu()) { |
| case MSM_CPU_8960: |
| case MSM_CPU_8960AB: |
| case MSM_CPU_8064: |
| case MSM_CPU_8064AB: |
| case MSM_CPU_8064AA: |
| case MSM_CPU_8930: |
| case MSM_CPU_8930AA: |
| case MSM_CPU_8930AB: |
| case MSM_CPU_8627: |
| case MSM_CPU_9615: |
| case MSM_CPU_8974: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| /* |
| * This will return TRUE for targets which support apps as master. |
| * Thus, SW DLOAD and Mode Reset are supported on apps processor. |
| * This applies to 8960 and newer targets. |
| */ |
| int chk_apps_master(void) |
| { |
| if (driver->use_device_tree) |
| return 1; |
| else if (soc_class_is_msm8960() || soc_class_is_msm8930() || |
| soc_class_is_apq8064() || cpu_is_msm9615()) |
| return 1; |
| else |
| return 0; |
| } |
| |
| int chk_polling_response(void) |
| { |
| if (!(driver->polling_reg_flag) && chk_apps_master()) |
| /* |
| * If the apps processor is master and no other processor |
| * has registered to respond for polling |
| */ |
| return 1; |
| else if (!(driver->smd_data[MODEM_DATA].ch) && |
| !(chk_apps_master())) |
| /* |
| * If the apps processor is not the master and the modem |
| * is not up |
| */ |
| return 1; |
| else |
| return 0; |
| } |
| |
| /* |
| * This function should be called if you feel that the logging process may |
| * need to be woken up. For instance, if the logging mode is MEMORY_DEVICE MODE |
| * and while trying to read data from a SMD data channel there are no buffers |
| * available to read the data into, then this function should be called to |
| * determine if the logging process needs to be woken up. |
| */ |
| void chk_logging_wakeup(void) |
| { |
| int i; |
| |
| /* Find the index of the logging process */ |
| for (i = 0; i < driver->num_clients; i++) |
| if (driver->client_map[i].pid == |
| driver->logging_process_id) |
| break; |
| |
| if (i < driver->num_clients) { |
| /* At very high logging rates a race condition can |
| * occur where the buffers containing the data from |
| * an smd channel are all in use, but the data_ready |
| * flag is cleared. In this case, the buffers never |
| * have their data read/logged. Detect and remedy this |
| * situation. |
| */ |
| if ((driver->data_ready[i] & USER_SPACE_DATA_TYPE) == 0) { |
| driver->data_ready[i] |= USER_SPACE_DATA_TYPE; |
| pr_debug("diag: Force wakeup of logging process\n"); |
| wake_up_interruptible(&driver->wait_q); |
| } |
| } |
| } |
| |
| void process_lock_enabling(struct diag_nrt_wake_lock *lock, int real_time) |
| { |
| unsigned long read_lock_flags; |
| |
| spin_lock_irqsave(&lock->read_spinlock, read_lock_flags); |
| if (real_time) |
| lock->enabled = 0; |
| else |
| lock->enabled = 1; |
| lock->ref_count = 0; |
| lock->copy_count = 0; |
| wake_unlock(&lock->read_lock); |
| spin_unlock_irqrestore(&lock->read_spinlock, read_lock_flags); |
| } |
| |
| void process_lock_on_notify(struct diag_nrt_wake_lock *lock) |
| { |
| unsigned long read_lock_flags; |
| |
| spin_lock_irqsave(&lock->read_spinlock, read_lock_flags); |
| /* |
| * Do not work with ref_count here in case |
| * of spurious interrupt |
| */ |
| if (lock->enabled) |
| wake_lock(&lock->read_lock); |
| spin_unlock_irqrestore(&lock->read_spinlock, read_lock_flags); |
| } |
| |
| void process_lock_on_read(struct diag_nrt_wake_lock *lock, int pkt_len) |
| { |
| unsigned long read_lock_flags; |
| |
| spin_lock_irqsave(&lock->read_spinlock, read_lock_flags); |
| if (lock->enabled) { |
| if (pkt_len > 0) { |
| /* |
| * We have an data that is read that |
| * needs to be processed, make sure the |
| * processor does not go to sleep |
| */ |
| lock->ref_count++; |
| if (!wake_lock_active(&lock->read_lock)) |
| wake_lock(&lock->read_lock); |
| } else { |
| /* |
| * There was no data associated with the |
| * read from the smd, unlock the wake lock |
| * if it is not needed. |
| */ |
| if (lock->ref_count < 1) { |
| if (wake_lock_active(&lock->read_lock)) |
| wake_unlock(&lock->read_lock); |
| lock->ref_count = 0; |
| lock->copy_count = 0; |
| } |
| } |
| } |
| spin_unlock_irqrestore(&lock->read_spinlock, read_lock_flags); |
| } |
| |
| void process_lock_on_copy(struct diag_nrt_wake_lock *lock) |
| { |
| unsigned long read_lock_flags; |
| |
| spin_lock_irqsave(&lock->read_spinlock, read_lock_flags); |
| if (lock->enabled) |
| lock->copy_count++; |
| spin_unlock_irqrestore(&lock->read_spinlock, read_lock_flags); |
| } |
| |
| void process_lock_on_copy_complete(struct diag_nrt_wake_lock *lock) |
| { |
| unsigned long read_lock_flags; |
| |
| spin_lock_irqsave(&lock->read_spinlock, read_lock_flags); |
| if (lock->enabled) { |
| lock->ref_count -= lock->copy_count; |
| if (lock->ref_count < 1) { |
| wake_unlock(&lock->read_lock); |
| lock->ref_count = 0; |
| } |
| lock->copy_count = 0; |
| } |
| spin_unlock_irqrestore(&lock->read_spinlock, read_lock_flags); |
| } |
| |
| /* Process the data read from the smd data channel */ |
| int diag_process_smd_read_data(struct diag_smd_info *smd_info, void *buf, |
| int total_recd) |
| { |
| struct diag_request *write_ptr_modem = NULL; |
| int *in_busy_ptr = 0; |
| int err = 0; |
| |
| /* |
| * Do not process data on command channel if the |
| * channel is not designated to do so |
| */ |
| if ((smd_info->type == SMD_CMD_TYPE) && |
| !driver->separate_cmdrsp[smd_info->peripheral]) { |
| /* This print is for debugging */ |
| pr_err("diag, In %s, received data on non-designated command channel: %d\n", |
| __func__, smd_info->peripheral); |
| return 0; |
| } |
| |
| if (smd_info->buf_in_1 == buf) { |
| write_ptr_modem = smd_info->write_ptr_1; |
| in_busy_ptr = &smd_info->in_busy_1; |
| } else if (smd_info->buf_in_2 == buf) { |
| write_ptr_modem = smd_info->write_ptr_2; |
| in_busy_ptr = &smd_info->in_busy_2; |
| } else { |
| pr_err("diag: In %s, no match for in_busy_1\n", __func__); |
| } |
| |
| if (write_ptr_modem) { |
| write_ptr_modem->length = total_recd; |
| *in_busy_ptr = 1; |
| err = diag_device_write(buf, smd_info->peripheral, |
| write_ptr_modem); |
| if (err) { |
| /* Free up the buffer for future use */ |
| *in_busy_ptr = 0; |
| pr_err_ratelimited("diag: In %s, diag_device_write error: %d\n", |
| __func__, err); |
| } |
| } |
| |
| return 0; |
| } |
| |
| void diag_smd_send_req(struct diag_smd_info *smd_info) |
| { |
| void *buf = NULL, *temp_buf = NULL; |
| int total_recd = 0, r = 0, pkt_len; |
| int loop_count = 0; |
| int notify = 0; |
| |
| if (!smd_info) { |
| pr_err("diag: In %s, no smd info. Not able to read.\n", |
| __func__); |
| return; |
| } |
| |
| if (!smd_info->in_busy_1) |
| buf = smd_info->buf_in_1; |
| else if (!smd_info->in_busy_2 && |
| (smd_info->type == SMD_DATA_TYPE)) |
| buf = smd_info->buf_in_2; |
| |
| if (!buf && (smd_info->type == SMD_DCI_TYPE || |
| smd_info->type == SMD_DCI_CMD_TYPE)) |
| diag_dci_try_deactivate_wakeup_source(smd_info->ch); |
| |
| if (smd_info->ch && buf) { |
| temp_buf = buf; |
| pkt_len = smd_cur_packet_size(smd_info->ch); |
| |
| if (pkt_len == 0 && (smd_info->type == SMD_DCI_TYPE || |
| smd_info->type == SMD_DCI_CMD_TYPE)) |
| diag_dci_try_deactivate_wakeup_source(smd_info->ch); |
| |
| while (pkt_len && (pkt_len != total_recd)) { |
| loop_count++; |
| r = smd_read_avail(smd_info->ch); |
| pr_debug("diag: In %s, received pkt %d %d\n", |
| __func__, r, total_recd); |
| if (!r) { |
| /* Nothing to read from SMD */ |
| wait_event(driver->smd_wait_q, |
| ((smd_info->ch == 0) || |
| smd_read_avail(smd_info->ch))); |
| /* If the smd channel is open */ |
| if (smd_info->ch) { |
| pr_debug("diag: In %s, return from wait_event\n", |
| __func__); |
| continue; |
| } else { |
| pr_debug("diag: In %s, return from wait_event ch closed\n", |
| __func__); |
| goto fail_return; |
| } |
| } |
| total_recd += r; |
| if (total_recd > IN_BUF_SIZE) { |
| if (total_recd < MAX_IN_BUF_SIZE) { |
| pr_err("diag: In %s, SMD sending in packets up to %d bytes\n", |
| __func__, total_recd); |
| buf = krealloc(buf, total_recd, |
| GFP_KERNEL); |
| } else { |
| pr_err("diag: In %s, SMD sending in packets more than %d bytes\n", |
| __func__, MAX_IN_BUF_SIZE); |
| goto fail_return; |
| } |
| } |
| if (pkt_len < r) { |
| pr_err("diag: In %s, SMD sending incorrect pkt\n", |
| __func__); |
| goto fail_return; |
| } |
| if (pkt_len > r) { |
| pr_debug("diag: In %s, SMD sending partial pkt %d %d %d %d %d %d\n", |
| __func__, pkt_len, r, total_recd, loop_count, |
| smd_info->peripheral, smd_info->type); |
| } |
| |
| /* keep reading for complete packet */ |
| smd_read(smd_info->ch, temp_buf, r); |
| temp_buf += r; |
| } |
| if (!driver->real_time_mode && smd_info->type == SMD_DATA_TYPE) |
| process_lock_on_read(&smd_info->nrt_lock, pkt_len); |
| |
| if (total_recd > 0) { |
| if (!buf) { |
| pr_err("diag: Out of diagmem for Modem\n"); |
| } else if (smd_info->process_smd_read_data) { |
| notify = smd_info->process_smd_read_data( |
| smd_info, buf, total_recd); |
| /* Poll SMD channels to check for data */ |
| if (notify) |
| diag_smd_notify(smd_info, |
| SMD_EVENT_DATA); |
| } |
| } |
| } else if (smd_info->ch && !buf && |
| (driver->logging_mode == MEMORY_DEVICE_MODE)) { |
| chk_logging_wakeup(); |
| } |
| return; |
| |
| fail_return: |
| if (smd_info->type == SMD_DCI_TYPE || |
| smd_info->type == SMD_DCI_CMD_TYPE) |
| diag_dci_try_deactivate_wakeup_source(smd_info->ch); |
| return; |
| } |
| |
| void diag_read_smd_work_fn(struct work_struct *work) |
| { |
| struct diag_smd_info *smd_info = container_of(work, |
| struct diag_smd_info, |
| diag_read_smd_work); |
| diag_smd_send_req(smd_info); |
| } |
| |
| #ifdef CONFIG_DIAGFWD_BRIDGE_CODE |
| static void diag_mem_dev_mode_ready_update(int index, int hsic_updated) |
| { |
| if (hsic_updated) { |
| unsigned long flags; |
| spin_lock_irqsave(&driver->hsic_ready_spinlock, flags); |
| driver->data_ready[index] |= USER_SPACE_DATA_TYPE; |
| spin_unlock_irqrestore(&driver->hsic_ready_spinlock, flags); |
| } else { |
| driver->data_ready[index] |= USER_SPACE_DATA_TYPE; |
| } |
| } |
| #else |
| static void diag_mem_dev_mode_ready_update(int index, int hsic_updated) |
| { |
| (void) hsic_updated; |
| driver->data_ready[index] |= USER_SPACE_DATA_TYPE; |
| } |
| #endif |
| int diag_device_write(void *buf, int data_type, struct diag_request *write_ptr) |
| { |
| int i, err = 0, index; |
| index = 0; |
| |
| if (driver->logging_mode == MEMORY_DEVICE_MODE) { |
| int hsic_updated = 0; |
| if (data_type == APPS_DATA) { |
| for (i = 0; i < driver->buf_tbl_size; i++) |
| if (driver->buf_tbl[i].length == 0) { |
| driver->buf_tbl[i].buf = buf; |
| driver->buf_tbl[i].length = |
| driver->used; |
| #ifdef DIAG_DEBUG |
| pr_debug("diag: ENQUEUE buf ptr" |
| " and length is %x , %d\n", |
| (unsigned int)(driver->buf_ |
| tbl[i].buf), driver->buf_tbl[i].length); |
| #endif |
| break; |
| } |
| } |
| |
| #ifdef CONFIG_DIAGFWD_BRIDGE_CODE |
| else if (data_type == HSIC_DATA || data_type == HSIC_2_DATA) { |
| unsigned long flags; |
| int foundIndex = -1; |
| hsic_updated = 1; |
| index = data_type - HSIC_DATA; |
| spin_lock_irqsave(&diag_hsic[index].hsic_spinlock, |
| flags); |
| for (i = 0; i < diag_hsic[index].poolsize_hsic_write; |
| i++) { |
| if (diag_hsic[index].hsic_buf_tbl[i].length |
| == 0) { |
| diag_hsic[index].hsic_buf_tbl[i].buf |
| = buf; |
| diag_hsic[index].hsic_buf_tbl[i].length |
| = diag_bridge[index].write_len; |
| diag_hsic[index]. |
| num_hsic_buf_tbl_entries++; |
| foundIndex = i; |
| break; |
| } |
| } |
| spin_unlock_irqrestore(&diag_hsic[index].hsic_spinlock, |
| flags); |
| if (foundIndex == -1) |
| err = -1; |
| else |
| pr_debug("diag: ENQUEUE HSIC buf ptr and length is %x , %d, ch %d\n", |
| (unsigned int)buf, |
| diag_bridge[index].write_len, index); |
| } |
| #endif |
| for (i = 0; i < driver->num_clients; i++) |
| if (driver->client_map[i].pid == |
| driver->logging_process_id) |
| break; |
| if (i < driver->num_clients) { |
| diag_mem_dev_mode_ready_update(i, hsic_updated); |
| pr_debug("diag: wake up logging process\n"); |
| wake_up_interruptible(&driver->wait_q); |
| } else |
| return -EINVAL; |
| } else if (driver->logging_mode == NO_LOGGING_MODE) { |
| if ((data_type >= MODEM_DATA) && (data_type <= WCNSS_DATA)) { |
| driver->smd_data[data_type].in_busy_1 = 0; |
| driver->smd_data[data_type].in_busy_2 = 0; |
| queue_work(driver->diag_wq, |
| &(driver->smd_data[data_type]. |
| diag_read_smd_work)); |
| if (data_type == MODEM_DATA && |
| driver->separate_cmdrsp[data_type]) { |
| driver->smd_cmd[data_type].in_busy_1 = 0; |
| driver->smd_cmd[data_type].in_busy_2 = 0; |
| queue_work(driver->diag_wq, |
| &(driver->smd_cmd[data_type]. |
| diag_read_smd_work)); |
| } |
| } |
| #ifdef CONFIG_DIAG_SDIO_PIPE |
| else if (data_type == SDIO_DATA) { |
| driver->in_busy_sdio = 0; |
| queue_work(driver->diag_sdio_wq, |
| &(driver->diag_read_sdio_work)); |
| } |
| #endif |
| #ifdef CONFIG_DIAGFWD_BRIDGE_CODE |
| else if (data_type == HSIC_DATA || data_type == HSIC_2_DATA) { |
| index = data_type - HSIC_DATA; |
| if (diag_hsic[index].hsic_ch) |
| queue_work(diag_bridge[index].wq, |
| &(diag_hsic[index]. |
| diag_read_hsic_work)); |
| } |
| #endif |
| err = -1; |
| } |
| #ifdef CONFIG_DIAG_OVER_USB |
| else if (driver->logging_mode == USB_MODE) { |
| if (data_type == APPS_DATA) { |
| driver->write_ptr_svc = (struct diag_request *) |
| (diagmem_alloc(driver, sizeof(struct diag_request), |
| POOL_TYPE_WRITE_STRUCT)); |
| if (driver->write_ptr_svc) { |
| driver->write_ptr_svc->length = driver->used; |
| driver->write_ptr_svc->buf = buf; |
| err = usb_diag_write(driver->legacy_ch, |
| driver->write_ptr_svc); |
| } else |
| err = -1; |
| } else if ((data_type >= MODEM_DATA) && |
| (data_type <= WCNSS_DATA)) { |
| write_ptr->buf = buf; |
| #ifdef DIAG_DEBUG |
| printk(KERN_INFO "writing data to USB," |
| "pkt length %d\n", write_ptr->length); |
| print_hex_dump(KERN_DEBUG, "Written Packet Data to" |
| " USB: ", 16, 1, DUMP_PREFIX_ADDRESS, |
| buf, write_ptr->length, 1); |
| #endif /* DIAG DEBUG */ |
| err = usb_diag_write(driver->legacy_ch, write_ptr); |
| } |
| #ifdef CONFIG_DIAG_SDIO_PIPE |
| else if (data_type == SDIO_DATA) { |
| if (machine_is_msm8x60_fusion() || |
| machine_is_msm8x60_fusn_ffa()) { |
| write_ptr->buf = buf; |
| err = usb_diag_write(driver->mdm_ch, write_ptr); |
| } else |
| pr_err("diag: Incorrect sdio data " |
| "while USB write\n"); |
| } |
| #endif |
| #ifdef CONFIG_DIAGFWD_BRIDGE_CODE |
| else if (data_type == HSIC_DATA || data_type == HSIC_2_DATA) { |
| index = data_type - HSIC_DATA; |
| if (diag_hsic[index].hsic_device_enabled) { |
| struct diag_request *write_ptr_mdm; |
| write_ptr_mdm = (struct diag_request *) |
| diagmem_alloc(driver, |
| sizeof(struct diag_request), |
| index + |
| POOL_TYPE_HSIC_WRITE); |
| if (write_ptr_mdm) { |
| write_ptr_mdm->buf = buf; |
| write_ptr_mdm->length = |
| diag_bridge[index].write_len; |
| write_ptr_mdm->context = (void *)index; |
| err = usb_diag_write( |
| diag_bridge[index].ch, write_ptr_mdm); |
| /* Return to the pool immediately */ |
| if (err) { |
| diagmem_free(driver, |
| write_ptr_mdm, |
| index + |
| POOL_TYPE_HSIC_WRITE); |
| pr_err_ratelimited("diag: HSIC write failure, err: %d, ch %d\n", |
| err, index); |
| } |
| } else { |
| pr_err("diag: allocate write fail\n"); |
| err = -1; |
| } |
| } else { |
| pr_err("diag: Incorrect HSIC data " |
| "while USB write\n"); |
| err = -1; |
| } |
| } else if (data_type == SMUX_DATA) { |
| write_ptr->buf = buf; |
| write_ptr->context = (void *)SMUX; |
| pr_debug("diag: writing SMUX data\n"); |
| err = usb_diag_write(diag_bridge[SMUX].ch, |
| write_ptr); |
| } |
| #endif |
| APPEND_DEBUG('d'); |
| } |
| #endif /* DIAG OVER USB */ |
| return err; |
| } |
| |
| static void diag_update_pkt_buffer(unsigned char *buf) |
| { |
| unsigned char *ptr = driver->pkt_buf; |
| unsigned char *temp = buf; |
| |
| mutex_lock(&driver->diagchar_mutex); |
| if (CHK_OVERFLOW(ptr, ptr, ptr + PKT_SIZE, driver->pkt_length)) { |
| memcpy(ptr, temp , driver->pkt_length); |
| driver->in_busy_pktdata = 1; |
| } else |
| printk(KERN_CRIT " Not enough buffer space for PKT_RESP\n"); |
| mutex_unlock(&driver->diagchar_mutex); |
| } |
| |
| void diag_update_userspace_clients(unsigned int type) |
| { |
| int i; |
| |
| mutex_lock(&driver->diagchar_mutex); |
| for (i = 0; i < driver->num_clients; i++) |
| if (driver->client_map[i].pid != 0) |
| driver->data_ready[i] |= type; |
| wake_up_interruptible(&driver->wait_q); |
| mutex_unlock(&driver->diagchar_mutex); |
| } |
| |
| void diag_update_sleeping_process(int process_id, int data_type) |
| { |
| int i; |
| |
| mutex_lock(&driver->diagchar_mutex); |
| for (i = 0; i < driver->num_clients; i++) |
| if (driver->client_map[i].pid == process_id) { |
| driver->data_ready[i] |= data_type; |
| break; |
| } |
| wake_up_interruptible(&driver->wait_q); |
| mutex_unlock(&driver->diagchar_mutex); |
| } |
| |
| static int diag_check_mode_reset(unsigned char *buf) |
| { |
| int is_mode_reset = 0; |
| if (chk_apps_master() && (int)(*(char *)buf) == MODE_CMD) |
| if ((int)(*(char *)(buf+1)) == RESET_ID) |
| is_mode_reset = 1; |
| return is_mode_reset; |
| } |
| |
| void diag_send_data(struct diag_master_table entry, unsigned char *buf, |
| int len, int type) |
| { |
| driver->pkt_length = len; |
| |
| /* If the process_id corresponds to an apps process */ |
| if (entry.process_id != NON_APPS_PROC) { |
| /* If the message is to be sent to the apps process */ |
| if (type != MODEM_DATA) { |
| diag_update_pkt_buffer(buf); |
| diag_update_sleeping_process(entry.process_id, |
| PKT_TYPE); |
| } |
| } else { |
| if (len > 0) { |
| if (entry.client_id < NUM_SMD_DATA_CHANNELS) { |
| struct diag_smd_info *smd_info; |
| int index = entry.client_id; |
| /* |
| * Mode reset should work even if |
| * modem is down |
| */ |
| if ((index == MODEM_DATA) && |
| diag_check_mode_reset(buf)) { |
| return; |
| } |
| smd_info = (driver->separate_cmdrsp[index] && |
| index < NUM_SMD_CMD_CHANNELS) ? |
| &driver->smd_cmd[index] : |
| &driver->smd_data[index]; |
| |
| if (smd_info->ch) { |
| mutex_lock(&smd_info->smd_ch_mutex); |
| smd_write(smd_info->ch, buf, len); |
| mutex_unlock(&smd_info->smd_ch_mutex); |
| } else { |
| pr_err("diag: In %s, smd channel %d not open, peripheral: %d, type: %d\n", |
| __func__, index, |
| smd_info->peripheral, |
| smd_info->type); |
| } |
| } else { |
| pr_alert("diag: In %s, incorrect channel: %d", |
| __func__, entry.client_id); |
| } |
| } |
| } |
| } |
| |
| void diag_process_stm_mask(uint8_t cmd, uint8_t data_mask, int data_type, |
| uint8_t *rsp_supported, uint8_t *rsp_smd_comply) |
| { |
| int status = 0; |
| if (data_type >= MODEM_DATA && data_type <= WCNSS_DATA) { |
| if (driver->peripheral_supports_stm[data_type]) { |
| status = diag_send_stm_state( |
| &driver->smd_cntl[data_type], cmd); |
| if (status == 1) |
| *rsp_smd_comply |= data_mask; |
| *rsp_supported |= data_mask; |
| } else if (driver->smd_cntl[data_type].ch) { |
| *rsp_smd_comply |= data_mask; |
| } |
| if ((*rsp_smd_comply & data_mask) && |
| (*rsp_supported & data_mask)) |
| driver->stm_state[data_type] = cmd; |
| |
| driver->stm_state_requested[data_type] = cmd; |
| } else if (data_type == APPS_DATA) { |
| *rsp_supported |= data_mask; |
| *rsp_smd_comply |= data_mask; |
| driver->stm_state[data_type] = cmd; |
| driver->stm_state_requested[data_type] = cmd; |
| } |
| } |
| |
| int diag_process_stm_cmd(unsigned char *buf) |
| { |
| uint8_t version = *(buf+STM_CMD_VERSION_OFFSET); |
| uint8_t mask = *(buf+STM_CMD_MASK_OFFSET); |
| uint8_t cmd = *(buf+STM_CMD_DATA_OFFSET); |
| uint8_t rsp_supported = 0; |
| uint8_t rsp_smd_comply = 0; |
| int valid_command = 1; |
| int i; |
| |
| /* Check if command is valid */ |
| if ((version != 1) || (mask == 0) || (0 != (mask >> 4)) || |
| (cmd != ENABLE_STM && cmd != DISABLE_STM)) { |
| valid_command = 0; |
| } else { |
| if (mask & DIAG_STM_MODEM) |
| diag_process_stm_mask(cmd, DIAG_STM_MODEM, MODEM_DATA, |
| &rsp_supported, &rsp_smd_comply); |
| |
| if (mask & DIAG_STM_LPASS) |
| diag_process_stm_mask(cmd, DIAG_STM_LPASS, LPASS_DATA, |
| &rsp_supported, &rsp_smd_comply); |
| |
| if (mask & DIAG_STM_WCNSS) |
| diag_process_stm_mask(cmd, DIAG_STM_WCNSS, WCNSS_DATA, |
| &rsp_supported, &rsp_smd_comply); |
| |
| if (mask & DIAG_STM_APPS) |
| diag_process_stm_mask(cmd, DIAG_STM_APPS, APPS_DATA, |
| &rsp_supported, &rsp_smd_comply); |
| } |
| |
| for (i = 0; i < STM_CMD_NUM_BYTES; i++) |
| driver->apps_rsp_buf[i] = *(buf+i); |
| |
| driver->apps_rsp_buf[STM_RSP_VALID_INDEX] = valid_command; |
| driver->apps_rsp_buf[STM_RSP_SUPPORTED_INDEX] = rsp_supported; |
| driver->apps_rsp_buf[STM_RSP_SMD_COMPLY_INDEX] = rsp_smd_comply; |
| |
| encode_rsp_and_send(STM_RSP_NUM_BYTES-1); |
| |
| return 0; |
| } |
| |
| int diag_process_apps_pkt(unsigned char *buf, int len) |
| { |
| uint16_t subsys_cmd_code; |
| int subsys_id, ssid_first, ssid_last, ssid_range; |
| int packet_type = 1, i, cmd_code; |
| unsigned char *temp = buf; |
| int data_type; |
| int mask_ret; |
| #if defined(CONFIG_DIAG_OVER_USB) |
| unsigned char *ptr; |
| #endif |
| |
| /* Check if the command is a supported mask command */ |
| mask_ret = diag_process_apps_masks(buf, len); |
| if (mask_ret <= 0) |
| return mask_ret; |
| |
| /* Check for registered clients and forward packet to apropriate proc */ |
| cmd_code = (int)(*(char *)buf); |
| temp++; |
| subsys_id = (int)(*(char *)temp); |
| temp++; |
| subsys_cmd_code = *(uint16_t *)temp; |
| temp += 2; |
| data_type = APPS_DATA; |
| /* Dont send any command other than mode reset */ |
| if (chk_apps_master() && cmd_code == MODE_CMD) { |
| if (subsys_id != RESET_ID) |
| data_type = MODEM_DATA; |
| } |
| |
| pr_debug("diag: %d %d %d", cmd_code, subsys_id, subsys_cmd_code); |
| for (i = 0; i < diag_max_reg; i++) { |
| entry = driver->table[i]; |
| if (entry.process_id != NO_PROCESS) { |
| if (entry.cmd_code == cmd_code && entry.subsys_id == |
| subsys_id && entry.cmd_code_lo <= |
| subsys_cmd_code && |
| entry.cmd_code_hi >= subsys_cmd_code) { |
| diag_send_data(entry, buf, len, data_type); |
| packet_type = 0; |
| } else if (entry.cmd_code == 255 |
| && cmd_code == 75) { |
| if (entry.subsys_id == |
| subsys_id && |
| entry.cmd_code_lo <= |
| subsys_cmd_code && |
| entry.cmd_code_hi >= |
| subsys_cmd_code) { |
| diag_send_data(entry, buf, len, |
| data_type); |
| packet_type = 0; |
| } |
| } else if (entry.cmd_code == 255 && |
| entry.subsys_id == 255) { |
| if (entry.cmd_code_lo <= |
| cmd_code && |
| entry. |
| cmd_code_hi >= cmd_code) { |
| diag_send_data(entry, buf, len, |
| data_type); |
| packet_type = 0; |
| } |
| } |
| } |
| } |
| #if defined(CONFIG_DIAG_OVER_USB) |
| /* Check for the command/respond msg for the maximum packet length */ |
| if ((*buf == 0x4b) && (*(buf+1) == 0x12) && |
| (*(uint16_t *)(buf+2) == 0x0055)) { |
| for (i = 0; i < 4; i++) |
| *(driver->apps_rsp_buf+i) = *(buf+i); |
| *(uint32_t *)(driver->apps_rsp_buf+4) = PKT_SIZE; |
| encode_rsp_and_send(7); |
| return 0; |
| } else if ((*buf == 0x4b) && (*(buf+1) == 0x12) && |
| (*(uint16_t *)(buf+2) == 0x020E)) { |
| return diag_process_stm_cmd(buf); |
| } |
| /* Check for Apps Only & get event mask request */ |
| else if (!(driver->smd_data[MODEM_DATA].ch) && chk_apps_only() && |
| *buf == 0x81) { |
| driver->apps_rsp_buf[0] = 0x81; |
| driver->apps_rsp_buf[1] = 0x0; |
| *(uint16_t *)(driver->apps_rsp_buf + 2) = 0x0; |
| *(uint16_t *)(driver->apps_rsp_buf + 4) = EVENT_LAST_ID + 1; |
| for (i = 0; i < EVENT_LAST_ID/8 + 1; i++) |
| *(unsigned char *)(driver->apps_rsp_buf + 6 + i) = 0x0; |
| encode_rsp_and_send(6 + EVENT_LAST_ID/8); |
| return 0; |
| } |
| /* Get log ID range & Check for Apps Only */ |
| else if (!(driver->smd_data[MODEM_DATA].ch) && chk_apps_only() |
| && (*buf == 0x73) && *(int *)(buf+4) == 1) { |
| driver->apps_rsp_buf[0] = 0x73; |
| *(int *)(driver->apps_rsp_buf + 4) = 0x1; /* operation ID */ |
| *(int *)(driver->apps_rsp_buf + 8) = 0x0; /* success code */ |
| *(int *)(driver->apps_rsp_buf + 12) = LOG_GET_ITEM_NUM(LOG_0); |
| *(int *)(driver->apps_rsp_buf + 16) = LOG_GET_ITEM_NUM(LOG_1); |
| *(int *)(driver->apps_rsp_buf + 20) = LOG_GET_ITEM_NUM(LOG_2); |
| *(int *)(driver->apps_rsp_buf + 24) = LOG_GET_ITEM_NUM(LOG_3); |
| *(int *)(driver->apps_rsp_buf + 28) = LOG_GET_ITEM_NUM(LOG_4); |
| *(int *)(driver->apps_rsp_buf + 32) = LOG_GET_ITEM_NUM(LOG_5); |
| *(int *)(driver->apps_rsp_buf + 36) = LOG_GET_ITEM_NUM(LOG_6); |
| *(int *)(driver->apps_rsp_buf + 40) = LOG_GET_ITEM_NUM(LOG_7); |
| *(int *)(driver->apps_rsp_buf + 44) = LOG_GET_ITEM_NUM(LOG_8); |
| *(int *)(driver->apps_rsp_buf + 48) = LOG_GET_ITEM_NUM(LOG_9); |
| *(int *)(driver->apps_rsp_buf + 52) = LOG_GET_ITEM_NUM(LOG_10); |
| *(int *)(driver->apps_rsp_buf + 56) = LOG_GET_ITEM_NUM(LOG_11); |
| *(int *)(driver->apps_rsp_buf + 60) = LOG_GET_ITEM_NUM(LOG_12); |
| *(int *)(driver->apps_rsp_buf + 64) = LOG_GET_ITEM_NUM(LOG_13); |
| *(int *)(driver->apps_rsp_buf + 68) = LOG_GET_ITEM_NUM(LOG_14); |
| *(int *)(driver->apps_rsp_buf + 72) = LOG_GET_ITEM_NUM(LOG_15); |
| encode_rsp_and_send(75); |
| return 0; |
| } |
| /* Respond to Get SSID Range request message */ |
| else if (!(driver->smd_data[MODEM_DATA].ch) && chk_apps_only() |
| && (*buf == 0x7d) && (*(buf+1) == 0x1)) { |
| driver->apps_rsp_buf[0] = 0x7d; |
| driver->apps_rsp_buf[1] = 0x1; |
| driver->apps_rsp_buf[2] = 0x1; |
| driver->apps_rsp_buf[3] = 0x0; |
| /* -1 to un-account for OEM SSID range */ |
| *(int *)(driver->apps_rsp_buf + 4) = MSG_MASK_TBL_CNT - 1; |
| *(uint16_t *)(driver->apps_rsp_buf + 8) = MSG_SSID_0; |
| *(uint16_t *)(driver->apps_rsp_buf + 10) = MSG_SSID_0_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 12) = MSG_SSID_1; |
| *(uint16_t *)(driver->apps_rsp_buf + 14) = MSG_SSID_1_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 16) = MSG_SSID_2; |
| *(uint16_t *)(driver->apps_rsp_buf + 18) = MSG_SSID_2_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 20) = MSG_SSID_3; |
| *(uint16_t *)(driver->apps_rsp_buf + 22) = MSG_SSID_3_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 24) = MSG_SSID_4; |
| *(uint16_t *)(driver->apps_rsp_buf + 26) = MSG_SSID_4_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 28) = MSG_SSID_5; |
| *(uint16_t *)(driver->apps_rsp_buf + 30) = MSG_SSID_5_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 32) = MSG_SSID_6; |
| *(uint16_t *)(driver->apps_rsp_buf + 34) = MSG_SSID_6_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 36) = MSG_SSID_7; |
| *(uint16_t *)(driver->apps_rsp_buf + 38) = MSG_SSID_7_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 40) = MSG_SSID_8; |
| *(uint16_t *)(driver->apps_rsp_buf + 42) = MSG_SSID_8_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 44) = MSG_SSID_9; |
| *(uint16_t *)(driver->apps_rsp_buf + 46) = MSG_SSID_9_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 48) = MSG_SSID_10; |
| *(uint16_t *)(driver->apps_rsp_buf + 50) = MSG_SSID_10_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 52) = MSG_SSID_11; |
| *(uint16_t *)(driver->apps_rsp_buf + 54) = MSG_SSID_11_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 56) = MSG_SSID_12; |
| *(uint16_t *)(driver->apps_rsp_buf + 58) = MSG_SSID_12_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 60) = MSG_SSID_13; |
| *(uint16_t *)(driver->apps_rsp_buf + 62) = MSG_SSID_13_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 64) = MSG_SSID_14; |
| *(uint16_t *)(driver->apps_rsp_buf + 66) = MSG_SSID_14_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 68) = MSG_SSID_15; |
| *(uint16_t *)(driver->apps_rsp_buf + 70) = MSG_SSID_15_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 72) = MSG_SSID_16; |
| *(uint16_t *)(driver->apps_rsp_buf + 74) = MSG_SSID_16_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 76) = MSG_SSID_17; |
| *(uint16_t *)(driver->apps_rsp_buf + 78) = MSG_SSID_17_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 80) = MSG_SSID_18; |
| *(uint16_t *)(driver->apps_rsp_buf + 82) = MSG_SSID_18_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 84) = MSG_SSID_19; |
| *(uint16_t *)(driver->apps_rsp_buf + 86) = MSG_SSID_19_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 88) = MSG_SSID_20; |
| *(uint16_t *)(driver->apps_rsp_buf + 90) = MSG_SSID_20_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 92) = MSG_SSID_21; |
| *(uint16_t *)(driver->apps_rsp_buf + 94) = MSG_SSID_21_LAST; |
| *(uint16_t *)(driver->apps_rsp_buf + 96) = MSG_SSID_22; |
| *(uint16_t *)(driver->apps_rsp_buf + 98) = MSG_SSID_22_LAST; |
| encode_rsp_and_send(99); |
| return 0; |
| } |
| /* Check for Apps Only Respond to Get Subsys Build mask */ |
| else if (!(driver->smd_data[MODEM_DATA].ch) && chk_apps_only() |
| && (*buf == 0x7d) && (*(buf+1) == 0x2)) { |
| ssid_first = *(uint16_t *)(buf + 2); |
| ssid_last = *(uint16_t *)(buf + 4); |
| ssid_range = 4 * (ssid_last - ssid_first + 1); |
| /* frame response */ |
| driver->apps_rsp_buf[0] = 0x7d; |
| driver->apps_rsp_buf[1] = 0x2; |
| *(uint16_t *)(driver->apps_rsp_buf + 2) = ssid_first; |
| *(uint16_t *)(driver->apps_rsp_buf + 4) = ssid_last; |
| driver->apps_rsp_buf[6] = 0x1; |
| driver->apps_rsp_buf[7] = 0x0; |
| ptr = driver->apps_rsp_buf + 8; |
| /* bld time masks */ |
| switch (ssid_first) { |
| case MSG_SSID_0: |
| if (ssid_range > sizeof(msg_bld_masks_0)) { |
| pr_warning("diag: truncating ssid range for ssid 0"); |
| ssid_range = sizeof(msg_bld_masks_0); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_0[i/4]; |
| break; |
| case MSG_SSID_1: |
| if (ssid_range > sizeof(msg_bld_masks_1)) { |
| pr_warning("diag: truncating ssid range for ssid 1"); |
| ssid_range = sizeof(msg_bld_masks_1); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_1[i/4]; |
| break; |
| case MSG_SSID_2: |
| if (ssid_range > sizeof(msg_bld_masks_2)) { |
| pr_warning("diag: truncating ssid range for ssid 2"); |
| ssid_range = sizeof(msg_bld_masks_2); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_2[i/4]; |
| break; |
| case MSG_SSID_3: |
| if (ssid_range > sizeof(msg_bld_masks_3)) { |
| pr_warning("diag: truncating ssid range for ssid 3"); |
| ssid_range = sizeof(msg_bld_masks_3); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_3[i/4]; |
| break; |
| case MSG_SSID_4: |
| if (ssid_range > sizeof(msg_bld_masks_4)) { |
| pr_warning("diag: truncating ssid range for ssid 4"); |
| ssid_range = sizeof(msg_bld_masks_4); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_4[i/4]; |
| break; |
| case MSG_SSID_5: |
| if (ssid_range > sizeof(msg_bld_masks_5)) { |
| pr_warning("diag: truncating ssid range for ssid 5"); |
| ssid_range = sizeof(msg_bld_masks_5); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_5[i/4]; |
| break; |
| case MSG_SSID_6: |
| if (ssid_range > sizeof(msg_bld_masks_6)) { |
| pr_warning("diag: truncating ssid range for ssid 6"); |
| ssid_range = sizeof(msg_bld_masks_6); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_6[i/4]; |
| break; |
| case MSG_SSID_7: |
| if (ssid_range > sizeof(msg_bld_masks_7)) { |
| pr_warning("diag: truncating ssid range for ssid 7"); |
| ssid_range = sizeof(msg_bld_masks_7); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_7[i/4]; |
| break; |
| case MSG_SSID_8: |
| if (ssid_range > sizeof(msg_bld_masks_8)) { |
| pr_warning("diag: truncating ssid range for ssid 8"); |
| ssid_range = sizeof(msg_bld_masks_8); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_8[i/4]; |
| break; |
| case MSG_SSID_9: |
| if (ssid_range > sizeof(msg_bld_masks_9)) { |
| pr_warning("diag: truncating ssid range for ssid 9"); |
| ssid_range = sizeof(msg_bld_masks_9); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_9[i/4]; |
| break; |
| case MSG_SSID_10: |
| if (ssid_range > sizeof(msg_bld_masks_10)) { |
| pr_warning("diag: truncating ssid range for ssid 10"); |
| ssid_range = sizeof(msg_bld_masks_10); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_10[i/4]; |
| break; |
| case MSG_SSID_11: |
| if (ssid_range > sizeof(msg_bld_masks_11)) { |
| pr_warning("diag: truncating ssid range for ssid 11"); |
| ssid_range = sizeof(msg_bld_masks_11); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_11[i/4]; |
| break; |
| case MSG_SSID_12: |
| if (ssid_range > sizeof(msg_bld_masks_12)) { |
| pr_warning("diag: truncating ssid range for ssid 12"); |
| ssid_range = sizeof(msg_bld_masks_12); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_12[i/4]; |
| break; |
| case MSG_SSID_13: |
| if (ssid_range > sizeof(msg_bld_masks_13)) { |
| pr_warning("diag: truncating ssid range for ssid 13"); |
| ssid_range = sizeof(msg_bld_masks_13); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_13[i/4]; |
| break; |
| case MSG_SSID_14: |
| if (ssid_range > sizeof(msg_bld_masks_14)) { |
| pr_warning("diag: truncating ssid range for ssid 14"); |
| ssid_range = sizeof(msg_bld_masks_14); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_14[i/4]; |
| break; |
| case MSG_SSID_15: |
| if (ssid_range > sizeof(msg_bld_masks_15)) { |
| pr_warning("diag: truncating ssid range for ssid 15"); |
| ssid_range = sizeof(msg_bld_masks_15); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_15[i/4]; |
| break; |
| case MSG_SSID_16: |
| if (ssid_range > sizeof(msg_bld_masks_16)) { |
| pr_warning("diag: truncating ssid range for ssid 16"); |
| ssid_range = sizeof(msg_bld_masks_16); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_16[i/4]; |
| break; |
| case MSG_SSID_17: |
| if (ssid_range > sizeof(msg_bld_masks_17)) { |
| pr_warning("diag: truncating ssid range for ssid 17"); |
| ssid_range = sizeof(msg_bld_masks_17); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_17[i/4]; |
| break; |
| case MSG_SSID_18: |
| if (ssid_range > sizeof(msg_bld_masks_18)) { |
| pr_warning("diag: truncating ssid range for ssid 18"); |
| ssid_range = sizeof(msg_bld_masks_18); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_18[i/4]; |
| break; |
| case MSG_SSID_19: |
| if (ssid_range > sizeof(msg_bld_masks_19)) { |
| pr_warning("diag: truncating ssid range for ssid 19"); |
| ssid_range = sizeof(msg_bld_masks_19); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_19[i/4]; |
| break; |
| case MSG_SSID_20: |
| if (ssid_range > sizeof(msg_bld_masks_20)) { |
| pr_warning("diag: truncating ssid range for ssid 20"); |
| ssid_range = sizeof(msg_bld_masks_20); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_20[i/4]; |
| break; |
| case MSG_SSID_21: |
| if (ssid_range > sizeof(msg_bld_masks_21)) { |
| pr_warning("diag: truncating ssid range for ssid 21"); |
| ssid_range = sizeof(msg_bld_masks_21); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_21[i/4]; |
| break; |
| case MSG_SSID_22: |
| if (ssid_range > sizeof(msg_bld_masks_22)) { |
| pr_warning("diag: truncating ssid range for ssid 22"); |
| ssid_range = sizeof(msg_bld_masks_22); |
| } |
| for (i = 0; i < ssid_range; i += 4) |
| *(int *)(ptr + i) = msg_bld_masks_22[i/4]; |
| break; |
| } |
| encode_rsp_and_send(8 + ssid_range - 1); |
| return 0; |
| } |
| /* Check for download command */ |
| else if ((cpu_is_msm8x60() || chk_apps_master()) && (*buf == 0x3A)) { |
| /* send response back */ |
| driver->apps_rsp_buf[0] = *buf; |
| encode_rsp_and_send(0); |
| msleep(5000); |
| /* call download API */ |
| msm_set_restart_mode(RESTART_DLOAD); |
| printk(KERN_CRIT "diag: download mode set, Rebooting SoC..\n"); |
| kernel_restart(NULL); |
| /* Not required, represents that command isnt sent to modem */ |
| return 0; |
| } |
| /* Check for polling for Apps only DIAG */ |
| else if ((*buf == 0x4b) && (*(buf+1) == 0x32) && |
| (*(buf+2) == 0x03)) { |
| /* If no one has registered for polling */ |
| if (chk_polling_response()) { |
| /* Respond to polling for Apps only DIAG */ |
| for (i = 0; i < 3; i++) |
| driver->apps_rsp_buf[i] = *(buf+i); |
| for (i = 0; i < 13; i++) |
| driver->apps_rsp_buf[i+3] = 0; |
| |
| encode_rsp_and_send(15); |
| return 0; |
| } |
| } |
| /* Return the Delayed Response Wrap Status */ |
| else if ((*buf == 0x4b) && (*(buf+1) == 0x32) && |
| (*(buf+2) == 0x04) && (*(buf+3) == 0x0)) { |
| memcpy(driver->apps_rsp_buf, buf, 4); |
| driver->apps_rsp_buf[4] = wrap_enabled; |
| encode_rsp_and_send(4); |
| return 0; |
| } |
| /* Wrap the Delayed Rsp ID */ |
| else if ((*buf == 0x4b) && (*(buf+1) == 0x32) && |
| (*(buf+2) == 0x05) && (*(buf+3) == 0x0)) { |
| wrap_enabled = true; |
| memcpy(driver->apps_rsp_buf, buf, 4); |
| driver->apps_rsp_buf[4] = wrap_count; |
| encode_rsp_and_send(5); |
| return 0; |
| } |
| /* Check for ID for NO MODEM present */ |
| else if (chk_polling_response()) { |
| /* respond to 0x0 command */ |
| if (*buf == 0x00) { |
| for (i = 0; i < 55; i++) |
| driver->apps_rsp_buf[i] = 0; |
| |
| encode_rsp_and_send(54); |
| return 0; |
| } |
| /* respond to 0x7c command */ |
| else if (*buf == 0x7c) { |
| driver->apps_rsp_buf[0] = 0x7c; |
| for (i = 1; i < 8; i++) |
| driver->apps_rsp_buf[i] = 0; |
| /* Tools ID for APQ 8060 */ |
| *(int *)(driver->apps_rsp_buf + 8) = |
| chk_config_get_id(); |
| *(unsigned char *)(driver->apps_rsp_buf + 12) = '\0'; |
| *(unsigned char *)(driver->apps_rsp_buf + 13) = '\0'; |
| encode_rsp_and_send(13); |
| return 0; |
| } |
| } |
| #endif |
| return packet_type; |
| } |
| |
| #ifdef CONFIG_DIAG_OVER_USB |
| void diag_send_error_rsp(int index) |
| { |
| int i; |
| |
| /* -1 to accomodate the first byte 0x13 */ |
| if (index > APPS_BUF_SIZE-1) { |
| pr_err("diag: cannot send err rsp, huge length: %d\n", index); |
| return; |
| } |
| |
| driver->apps_rsp_buf[0] = 0x13; /* error code 13 */ |
| for (i = 0; i < index; i++) |
| driver->apps_rsp_buf[i+1] = *(driver->hdlc_buf+i); |
| encode_rsp_and_send(index - 3); |
| } |
| #else |
| static inline void diag_send_error_rsp(int index) {} |
| #endif |
| |
| void diag_process_hdlc(void *data, unsigned len) |
| { |
| struct diag_hdlc_decode_type hdlc; |
| int ret, type = 0; |
| |
| mutex_lock(&driver->diag_hdlc_mutex); |
| |
| pr_debug("diag: HDLC decode fn, len of data %d\n", len); |
| hdlc.dest_ptr = driver->hdlc_buf; |
| hdlc.dest_size = USB_MAX_OUT_BUF; |
| hdlc.src_ptr = data; |
| hdlc.src_size = len; |
| hdlc.src_idx = 0; |
| hdlc.dest_idx = 0; |
| hdlc.escaping = 0; |
| |
| ret = diag_hdlc_decode(&hdlc); |
| |
| /* |
| * If the message is 3 bytes or less in length then the message is |
| * too short. A message will need 4 bytes minimum, since there are |
| * 2 bytes for the CRC and 1 byte for the ending 0x7e for the hdlc |
| * encoding |
| */ |
| if (hdlc.dest_idx < 4) { |
| pr_err_ratelimited("diag: In %s, message is too short, len: %d, dest len: %d\n", |
| __func__, len, hdlc.dest_idx); |
| mutex_unlock(&driver->diag_hdlc_mutex); |
| return; |
| } |
| |
| if (ret) { |
| type = diag_process_apps_pkt(driver->hdlc_buf, |
| hdlc.dest_idx - 3); |
| if (type < 0) { |
| mutex_unlock(&driver->diag_hdlc_mutex); |
| return; |
| } |
| } else if (driver->debug_flag) { |
| printk(KERN_ERR "Packet dropped due to bad HDLC coding/CRC" |
| " errors or partial packet received, packet" |
| " length = %d\n", len); |
| print_hex_dump(KERN_DEBUG, "Dropped Packet Data: ", 16, 1, |
| DUMP_PREFIX_ADDRESS, data, len, 1); |
| driver->debug_flag = 0; |
| } |
| /* send error responses from APPS for Central Routing */ |
| if (type == 1 && chk_apps_only()) { |
| diag_send_error_rsp(hdlc.dest_idx); |
| type = 0; |
| } |
| /* implies this packet is NOT meant for apps */ |
| if (!(driver->smd_data[MODEM_DATA].ch) && type == 1) { |
| if (chk_apps_only()) { |
| diag_send_error_rsp(hdlc.dest_idx); |
| } else { /* APQ 8060, Let Q6 respond */ |
| if (driver->smd_data[LPASS_DATA].ch) { |
| mutex_lock(&driver->smd_data[LPASS_DATA]. |
| smd_ch_mutex); |
| smd_write(driver->smd_data[LPASS_DATA].ch, |
| driver->hdlc_buf, |
| hdlc.dest_idx - 3); |
| mutex_unlock(&driver->smd_data[LPASS_DATA]. |
| smd_ch_mutex); |
| } |
| } |
| type = 0; |
| } |
| |
| #ifdef DIAG_DEBUG |
| pr_debug("diag: hdlc.dest_idx = %d", hdlc.dest_idx); |
| for (i = 0; i < hdlc.dest_idx; i++) |
| printk(KERN_DEBUG "\t%x", *(((unsigned char *) |
| driver->hdlc_buf)+i)); |
| #endif /* DIAG DEBUG */ |
| /* ignore 2 bytes for CRC, one for 7E and send */ |
| if ((driver->smd_data[MODEM_DATA].ch) && (ret) && (type) && |
| (hdlc.dest_idx > 3)) { |
| APPEND_DEBUG('g'); |
| mutex_lock(&driver->smd_data[MODEM_DATA].smd_ch_mutex); |
| smd_write(driver->smd_data[MODEM_DATA].ch, |
| driver->hdlc_buf, hdlc.dest_idx - 3); |
| mutex_unlock(&driver->smd_data[MODEM_DATA].smd_ch_mutex); |
| APPEND_DEBUG('h'); |
| #ifdef DIAG_DEBUG |
| printk(KERN_INFO "writing data to SMD, pkt length %d\n", len); |
| print_hex_dump(KERN_DEBUG, "Written Packet Data to SMD: ", 16, |
| 1, DUMP_PREFIX_ADDRESS, data, len, 1); |
| #endif /* DIAG DEBUG */ |
| } |
| mutex_unlock(&driver->diag_hdlc_mutex); |
| } |
| |
| void diag_reset_smd_data(int queue) |
| { |
| int i; |
| |
| for (i = 0; i < NUM_SMD_DATA_CHANNELS; i++) { |
| driver->smd_data[i].in_busy_1 = 0; |
| driver->smd_data[i].in_busy_2 = 0; |
| if (queue) |
| /* Poll SMD data channels to check for data */ |
| queue_work(driver->diag_wq, |
| &(driver->smd_data[i].diag_read_smd_work)); |
| } |
| |
| if (driver->supports_separate_cmdrsp) { |
| for (i = 0; i < NUM_SMD_CMD_CHANNELS; i++) { |
| driver->smd_cmd[i].in_busy_1 = 0; |
| driver->smd_cmd[i].in_busy_2 = 0; |
| if (queue) |
| /* Poll SMD data channels to check for data */ |
| queue_work(driver->diag_wq, |
| &(driver->smd_cmd[i]. |
| diag_read_smd_work)); |
| } |
| } |
| } |
| |
| #ifdef CONFIG_DIAG_OVER_USB |
| /* 2+1 for modem ; 2 for LPASS ; 1 for WCNSS */ |
| #define N_LEGACY_WRITE (driver->poolsize + 6) |
| /* Additionally support number of command data and dci channels */ |
| #define N_LEGACY_WRITE_CMD ((N_LEGACY_WRITE) + 4) |
| #define N_LEGACY_READ 1 |
| |
| static void diag_usb_connect_work_fn(struct work_struct *w) |
| { |
| diagfwd_connect(); |
| } |
| |
| static void diag_usb_disconnect_work_fn(struct work_struct *w) |
| { |
| diagfwd_disconnect(); |
| } |
| |
| int diagfwd_connect(void) |
| { |
| int err; |
| int i; |
| |
| printk(KERN_DEBUG "diag: USB connected\n"); |
| err = usb_diag_alloc_req(driver->legacy_ch, |
| (driver->supports_separate_cmdrsp ? |
| N_LEGACY_WRITE_CMD : N_LEGACY_WRITE), |
| N_LEGACY_READ); |
| if (err) |
| printk(KERN_ERR "diag: unable to alloc USB req on legacy ch"); |
| |
| driver->usb_connected = 1; |
| diag_reset_smd_data(RESET_AND_QUEUE); |
| for (i = 0; i < NUM_SMD_DATA_CHANNELS; i++) { |
| /* Poll SMD CNTL channels to check for data */ |
| diag_smd_notify(&(driver->smd_cntl[i]), SMD_EVENT_DATA); |
| } |
| queue_work(driver->diag_real_time_wq, |
| &driver->diag_real_time_work); |
| |
| /* Poll USB channel to check for data*/ |
| queue_work(driver->diag_wq, &(driver->diag_read_work)); |
| #ifdef CONFIG_DIAG_SDIO_PIPE |
| if (machine_is_msm8x60_fusion() || machine_is_msm8x60_fusn_ffa()) { |
| if (driver->mdm_ch && !IS_ERR(driver->mdm_ch)) |
| diagfwd_connect_sdio(); |
| else |
| printk(KERN_INFO "diag: No USB MDM ch"); |
| } |
| #endif |
| return 0; |
| } |
| |
| int diagfwd_disconnect(void) |
| { |
| int i; |
| |
| printk(KERN_DEBUG "diag: USB disconnected\n"); |
| driver->usb_connected = 0; |
| driver->debug_flag = 1; |
| usb_diag_free_req(driver->legacy_ch); |
| if (driver->logging_mode == USB_MODE) { |
| for (i = 0; i < NUM_SMD_DATA_CHANNELS; i++) { |
| driver->smd_data[i].in_busy_1 = 1; |
| driver->smd_data[i].in_busy_2 = 1; |
| } |
| |
| if (driver->supports_separate_cmdrsp) { |
| for (i = 0; i < NUM_SMD_CMD_CHANNELS; i++) { |
| driver->smd_cmd[i].in_busy_1 = 1; |
| driver->smd_cmd[i].in_busy_2 = 1; |
| } |
| } |
| } |
| queue_work(driver->diag_real_time_wq, |
| &driver->diag_real_time_work); |
| #ifdef CONFIG_DIAG_SDIO_PIPE |
| if (machine_is_msm8x60_fusion() || machine_is_msm8x60_fusn_ffa()) |
| if (driver->mdm_ch && !IS_ERR(driver->mdm_ch)) |
| diagfwd_disconnect_sdio(); |
| #endif |
| /* TBD - notify and flow control SMD */ |
| return 0; |
| } |
| |
| static int diagfwd_check_buf_match(int num_channels, |
| struct diag_smd_info *data, unsigned char *buf) |
| { |
| int i; |
| int found_it = 0; |
| |
| for (i = 0; i < num_channels; i++) { |
| if (buf == (void *)data[i].buf_in_1) { |
| data[i].in_busy_1 = 0; |
| queue_work(driver->diag_wq, |
| &(data[i].diag_read_smd_work)); |
| found_it = 1; |
| break; |
| } else if (buf == (void *)data[i].buf_in_2) { |
| data[i].in_busy_2 = 0; |
| queue_work(driver->diag_wq, |
| &(data[i].diag_read_smd_work)); |
| found_it = 1; |
| break; |
| } |
| } |
| |
| return found_it; |
| } |
| |
| int diagfwd_write_complete(struct diag_request *diag_write_ptr) |
| { |
| unsigned char *buf = diag_write_ptr->buf; |
| int found_it = 0; |
| |
| /* Determine if the write complete is for data from modem/apps/q6 */ |
| found_it = diagfwd_check_buf_match(NUM_SMD_DATA_CHANNELS, |
| driver->smd_data, buf); |
| |
| if (!found_it && driver->supports_separate_cmdrsp) |
| found_it = diagfwd_check_buf_match(NUM_SMD_CMD_CHANNELS, |
| driver->smd_cmd, buf); |
| |
| #ifdef CONFIG_DIAG_SDIO_PIPE |
| if (!found_it) { |
| if (buf == (void *)driver->buf_in_sdio) { |
| if (machine_is_msm8x60_fusion() || |
| machine_is_msm8x60_fusn_ffa()) |
| diagfwd_write_complete_sdio(); |
| else |
| pr_err("diag: Incorrect buffer pointer while WRITE"); |
| found_it = 1; |
| } |
| } |
| #endif |
| if (!found_it) { |
| diagmem_free(driver, (unsigned char *)buf, |
| POOL_TYPE_HDLC); |
| diagmem_free(driver, (unsigned char *)diag_write_ptr, |
| POOL_TYPE_WRITE_STRUCT); |
| } |
| return 0; |
| } |
| |
| int diagfwd_read_complete(struct diag_request *diag_read_ptr) |
| { |
| int status = diag_read_ptr->status; |
| unsigned char *buf = diag_read_ptr->buf; |
| |
| /* Determine if the read complete is for data on legacy/mdm ch */ |
| if (buf == (void *)driver->usb_buf_out) { |
| driver->read_len_legacy = diag_read_ptr->actual; |
| APPEND_DEBUG('s'); |
| #ifdef DIAG_DEBUG |
| printk(KERN_INFO "read data from USB, pkt length %d", |
| diag_read_ptr->actual); |
| print_hex_dump(KERN_DEBUG, "Read Packet Data from USB: ", 16, 1, |
| DUMP_PREFIX_ADDRESS, diag_read_ptr->buf, |
| diag_read_ptr->actual, 1); |
| #endif /* DIAG DEBUG */ |
| if (driver->logging_mode == USB_MODE) { |
| if (status != -ECONNRESET && status != -ESHUTDOWN) |
| queue_work(driver->diag_wq, |
| &(driver->diag_proc_hdlc_work)); |
| else |
| queue_work(driver->diag_wq, |
| &(driver->diag_read_work)); |
| } |
| } |
| #ifdef CONFIG_DIAG_SDIO_PIPE |
| else if (buf == (void *)driver->usb_buf_mdm_out) { |
| if (machine_is_msm8x60_fusion() || |
| machine_is_msm8x60_fusn_ffa()) { |
| driver->read_len_mdm = diag_read_ptr->actual; |
| diagfwd_read_complete_sdio(); |
| } else |
| pr_err("diag: Incorrect buffer pointer while READ"); |
| } |
| #endif |
| else |
| printk(KERN_ERR "diag: Unknown buffer ptr from USB"); |
| |
| return 0; |
| } |
| |
| void diag_read_work_fn(struct work_struct *work) |
| { |
| APPEND_DEBUG('d'); |
| driver->usb_read_ptr->buf = driver->usb_buf_out; |
| driver->usb_read_ptr->length = USB_MAX_OUT_BUF; |
| usb_diag_read(driver->legacy_ch, driver->usb_read_ptr); |
| APPEND_DEBUG('e'); |
| } |
| |
| void diag_process_hdlc_fn(struct work_struct *work) |
| { |
| APPEND_DEBUG('D'); |
| diag_process_hdlc(driver->usb_buf_out, driver->read_len_legacy); |
| diag_read_work_fn(work); |
| APPEND_DEBUG('E'); |
| } |
| |
| void diag_usb_legacy_notifier(void *priv, unsigned event, |
| struct diag_request *d_req) |
| { |
| switch (event) { |
| case USB_DIAG_CONNECT: |
| queue_work(driver->diag_wq, |
| &driver->diag_usb_connect_work); |
| break; |
| case USB_DIAG_DISCONNECT: |
| queue_work(driver->diag_wq, |
| &driver->diag_usb_disconnect_work); |
| break; |
| case USB_DIAG_READ_DONE: |
| diagfwd_read_complete(d_req); |
| break; |
| case USB_DIAG_WRITE_DONE: |
| diagfwd_write_complete(d_req); |
| break; |
| default: |
| printk(KERN_ERR "Unknown event from USB diag\n"); |
| break; |
| } |
| } |
| |
| #endif /* DIAG OVER USB */ |
| |
| void diag_smd_notify(void *ctxt, unsigned event) |
| { |
| struct diag_smd_info *smd_info = (struct diag_smd_info *)ctxt; |
| if (!smd_info) |
| return; |
| |
| if (event == SMD_EVENT_CLOSE) { |
| smd_info->ch = 0; |
| wake_up(&driver->smd_wait_q); |
| if (smd_info->type == SMD_DATA_TYPE) { |
| smd_info->notify_context = event; |
| queue_work(driver->diag_cntl_wq, |
| &(smd_info->diag_notify_update_smd_work)); |
| } else if (smd_info->type == SMD_DCI_TYPE) { |
| /* Notify the clients of the close */ |
| diag_dci_notify_client(smd_info->peripheral_mask, |
| DIAG_STATUS_CLOSED); |
| } else if (smd_info->type == SMD_CNTL_TYPE) { |
| diag_cntl_stm_notify(smd_info, |
| CLEAR_PERIPHERAL_STM_STATE); |
| } |
| return; |
| } else if (event == SMD_EVENT_OPEN) { |
| if (smd_info->ch_save) |
| smd_info->ch = smd_info->ch_save; |
| |
| if (smd_info->type == SMD_CNTL_TYPE) { |
| smd_info->notify_context = event; |
| queue_work(driver->diag_cntl_wq, |
| &(smd_info->diag_notify_update_smd_work)); |
| } else if (smd_info->type == SMD_DCI_TYPE) { |
| smd_info->notify_context = event; |
| queue_work(driver->diag_dci_wq, |
| &(smd_info->diag_notify_update_smd_work)); |
| /* Notify the clients of the open */ |
| diag_dci_notify_client(smd_info->peripheral_mask, |
| DIAG_STATUS_OPEN); |
| } |
| } else if (event == SMD_EVENT_DATA && !driver->real_time_mode && |
| smd_info->type == SMD_DATA_TYPE) { |
| process_lock_on_notify(&smd_info->nrt_lock); |
| } |
| |
| wake_up(&driver->smd_wait_q); |
| |
| if (smd_info->type == SMD_DCI_TYPE || |
| smd_info->type == SMD_DCI_CMD_TYPE) { |
| if (event == SMD_EVENT_DATA) |
| diag_dci_try_activate_wakeup_source(smd_info->ch); |
| queue_work(driver->diag_dci_wq, |
| &(smd_info->diag_read_smd_work)); |
| } else |
| queue_work(driver->diag_wq, &(smd_info->diag_read_smd_work)); |
| } |
| |
| static int diag_smd_probe(struct platform_device *pdev) |
| { |
| int r = 0; |
| int index = -1; |
| const char *channel_name = NULL; |
| |
| if (pdev->id == SMD_APPS_MODEM) { |
| index = MODEM_DATA; |
| channel_name = "DIAG"; |
| } |
| #if defined(CONFIG_MSM_N_WAY_SMD) |
| else if (pdev->id == SMD_APPS_QDSP) { |
| index = LPASS_DATA; |
| channel_name = "DIAG"; |
| } |
| #endif |
| else if (pdev->id == SMD_APPS_WCNSS) { |
| index = WCNSS_DATA; |
| channel_name = "APPS_RIVA_DATA"; |
| } |
| |
| if (index != -1) { |
| r = smd_named_open_on_edge(channel_name, |
| pdev->id, |
| &driver->smd_data[index].ch, |
| &driver->smd_data[index], |
| diag_smd_notify); |
| driver->smd_data[index].ch_save = driver->smd_data[index].ch; |
| } |
| |
| pm_runtime_set_active(&pdev->dev); |
| pm_runtime_enable(&pdev->dev); |
| pr_debug("diag: In %s, open SMD port, Id = %d, r = %d\n", |
| __func__, pdev->id, r); |
| |
| return 0; |
| } |
| |
| static int diag_smd_cmd_probe(struct platform_device *pdev) |
| { |
| int r = 0; |
| int index = -1; |
| const char *channel_name = NULL; |
| |
| if (!driver->supports_separate_cmdrsp) |
| return 0; |
| |
| if (pdev->id == SMD_APPS_MODEM) { |
| index = MODEM_DATA; |
| channel_name = "DIAG_CMD"; |
| } |
| |
| if (index != -1) { |
| r = smd_named_open_on_edge(channel_name, |
| pdev->id, |
| &driver->smd_cmd[index].ch, |
| &driver->smd_cmd[index], |
| diag_smd_notify); |
| driver->smd_cmd[index].ch_save = |
| driver->smd_cmd[index].ch; |
| } |
| |
| pr_debug("diag: In %s, open SMD CMD port, Id = %d, r = %d\n", |
| __func__, pdev->id, r); |
| |
| return 0; |
| } |
| |
| static int diag_smd_runtime_suspend(struct device *dev) |
| { |
| dev_dbg(dev, "pm_runtime: suspending...\n"); |
| return 0; |
| } |
| |
| static int diag_smd_runtime_resume(struct device *dev) |
| { |
| dev_dbg(dev, "pm_runtime: resuming...\n"); |
| return 0; |
| } |
| |
| static const struct dev_pm_ops diag_smd_dev_pm_ops = { |
| .runtime_suspend = diag_smd_runtime_suspend, |
| .runtime_resume = diag_smd_runtime_resume, |
| }; |
| |
| static struct platform_driver msm_smd_ch1_driver = { |
| |
| .probe = diag_smd_probe, |
| .driver = { |
| .name = "DIAG", |
| .owner = THIS_MODULE, |
| .pm = &diag_smd_dev_pm_ops, |
| }, |
| }; |
| |
| static struct platform_driver diag_smd_lite_driver = { |
| |
| .probe = diag_smd_probe, |
| .driver = { |
| .name = "APPS_RIVA_DATA", |
| .owner = THIS_MODULE, |
| .pm = &diag_smd_dev_pm_ops, |
| }, |
| }; |
| |
| static struct platform_driver |
| smd_lite_data_cmd_drivers[NUM_SMD_CMD_CHANNELS] = { |
| { |
| /* Modem data */ |
| .probe = diag_smd_cmd_probe, |
| .driver = { |
| .name = "DIAG_CMD", |
| .owner = THIS_MODULE, |
| .pm = &diag_smd_dev_pm_ops, |
| }, |
| } |
| }; |
| |
| int device_supports_separate_cmdrsp(void) |
| { |
| return driver->use_device_tree; |
| } |
| |
| void diag_smd_destructor(struct diag_smd_info *smd_info) |
| { |
| if (smd_info->type == SMD_DATA_TYPE) |
| wake_lock_destroy(&smd_info->nrt_lock.read_lock); |
| |
| if (smd_info->ch) |
| smd_close(smd_info->ch); |
| |
| smd_info->ch = 0; |
| smd_info->ch_save = 0; |
| kfree(smd_info->buf_in_1); |
| kfree(smd_info->buf_in_2); |
| kfree(smd_info->write_ptr_1); |
| kfree(smd_info->write_ptr_2); |
| } |
| |
| int diag_smd_constructor(struct diag_smd_info *smd_info, int peripheral, |
| int type) |
| { |
| smd_info->peripheral = peripheral; |
| smd_info->type = type; |
| mutex_init(&smd_info->smd_ch_mutex); |
| |
| switch (peripheral) { |
| case MODEM_DATA: |
| smd_info->peripheral_mask = DIAG_CON_MPSS; |
| break; |
| case LPASS_DATA: |
| smd_info->peripheral_mask = DIAG_CON_LPASS; |
| break; |
| case WCNSS_DATA: |
| smd_info->peripheral_mask = DIAG_CON_WCNSS; |
| break; |
| default: |
| pr_err("diag: In %s, unknown peripheral, peripheral: %d\n", |
| __func__, peripheral); |
| goto err; |
| } |
| |
| smd_info->ch = 0; |
| smd_info->ch_save = 0; |
| |
| if (smd_info->buf_in_1 == NULL) { |
| smd_info->buf_in_1 = kzalloc(IN_BUF_SIZE, GFP_KERNEL); |
| if (smd_info->buf_in_1 == NULL) |
| goto err; |
| kmemleak_not_leak(smd_info->buf_in_1); |
| } |
| |
| if (smd_info->write_ptr_1 == NULL) { |
| smd_info->write_ptr_1 = kzalloc(sizeof(struct diag_request), |
| GFP_KERNEL); |
| if (smd_info->write_ptr_1 == NULL) |
| goto err; |
| kmemleak_not_leak(smd_info->write_ptr_1); |
| } |
| |
| /* The smd data type needs two buffers */ |
| if (smd_info->type == SMD_DATA_TYPE) { |
| if (smd_info->buf_in_2 == NULL) { |
| smd_info->buf_in_2 = kzalloc(IN_BUF_SIZE, GFP_KERNEL); |
| if (smd_info->buf_in_2 == NULL) |
| goto err; |
| kmemleak_not_leak(smd_info->buf_in_2); |
| } |
| if (smd_info->write_ptr_2 == NULL) { |
| smd_info->write_ptr_2 = |
| kzalloc(sizeof(struct diag_request), |
| GFP_KERNEL); |
| if (smd_info->write_ptr_2 == NULL) |
| goto err; |
| kmemleak_not_leak(smd_info->write_ptr_2); |
| } |
| } |
| |
| INIT_WORK(&(smd_info->diag_read_smd_work), diag_read_smd_work_fn); |
| |
| /* |
| * The update function assigned to the diag_notify_update_smd_work |
| * work_struct is meant to be used for updating that is not to |
| * be done in the context of the smd notify function. The |
| * notify_context variable can be used for passing additional |
| * information to the update function. |
| */ |
| smd_info->notify_context = 0; |
| smd_info->general_context = 0; |
| switch (type) { |
| case SMD_DATA_TYPE: |
| case SMD_CMD_TYPE: |
| INIT_WORK(&(smd_info->diag_notify_update_smd_work), |
| diag_clean_reg_fn); |
| INIT_WORK(&(smd_info->diag_general_smd_work), |
| diag_cntl_smd_work_fn); |
| break; |
| case SMD_CNTL_TYPE: |
| INIT_WORK(&(smd_info->diag_notify_update_smd_work), |
| diag_mask_update_fn); |
| INIT_WORK(&(smd_info->diag_general_smd_work), |
| diag_cntl_smd_work_fn); |
| break; |
| case SMD_DCI_TYPE: |
| case SMD_DCI_CMD_TYPE: |
| INIT_WORK(&(smd_info->diag_notify_update_smd_work), |
| diag_update_smd_dci_work_fn); |
| INIT_WORK(&(smd_info->diag_general_smd_work), |
| diag_cntl_smd_work_fn); |
| break; |
| default: |
| pr_err("diag: In %s, unknown type, type: %d\n", __func__, type); |
| goto err; |
| } |
| |
| /* |
| * Set function ptr for function to call to process the data that |
| * was just read from the smd channel |
| */ |
| switch (type) { |
| case SMD_DATA_TYPE: |
| case SMD_CMD_TYPE: |
| smd_info->process_smd_read_data = diag_process_smd_read_data; |
| break; |
| case SMD_CNTL_TYPE: |
| smd_info->process_smd_read_data = |
| diag_process_smd_cntl_read_data; |
| break; |
| case SMD_DCI_TYPE: |
| case SMD_DCI_CMD_TYPE: |
| smd_info->process_smd_read_data = |
| diag_process_smd_dci_read_data; |
| break; |
| default: |
| pr_err("diag: In %s, unknown type, type: %d\n", __func__, type); |
| goto err; |
| } |
| |
| smd_info->nrt_lock.enabled = 0; |
| smd_info->nrt_lock.ref_count = 0; |
| smd_info->nrt_lock.copy_count = 0; |
| if (type == SMD_DATA_TYPE) { |
| spin_lock_init(&smd_info->nrt_lock.read_spinlock); |
| |
| switch (peripheral) { |
| case MODEM_DATA: |
| wake_lock_init(&smd_info->nrt_lock.read_lock, |
| WAKE_LOCK_SUSPEND, "diag_nrt_modem_read"); |
| break; |
| case LPASS_DATA: |
| wake_lock_init(&smd_info->nrt_lock.read_lock, |
| WAKE_LOCK_SUSPEND, "diag_nrt_lpass_read"); |
| break; |
| case WCNSS_DATA: |
| wake_lock_init(&smd_info->nrt_lock.read_lock, |
| WAKE_LOCK_SUSPEND, "diag_nrt_wcnss_read"); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| return 1; |
| err: |
| kfree(smd_info->buf_in_1); |
| kfree(smd_info->buf_in_2); |
| kfree(smd_info->write_ptr_1); |
| kfree(smd_info->write_ptr_2); |
| |
| return 0; |
| } |
| |
| void diagfwd_init(void) |
| { |
| int success; |
| int i; |
| |
| wrap_enabled = 0; |
| wrap_count = 0; |
| diag_debug_buf_idx = 0; |
| driver->read_len_legacy = 0; |
| driver->use_device_tree = has_device_tree(); |
| driver->real_time_mode = 1; |
| /* |
| * The number of entries in table of buffers |
| * should not be any smaller than hdlc poolsize. |
| */ |
| driver->buf_tbl_size = (buf_tbl_size < driver->poolsize_hdlc) ? |
| driver->poolsize_hdlc : buf_tbl_size; |
| driver->supports_separate_cmdrsp = device_supports_separate_cmdrsp(); |
| mutex_init(&driver->diag_hdlc_mutex); |
| mutex_init(&driver->diag_cntl_mutex); |
| |
| for (i = 0; i < NUM_SMD_CONTROL_CHANNELS; i++) { |
| driver->separate_cmdrsp[i] = 0; |
| driver->peripheral_supports_stm[i] = DISABLE_STM; |
| } |
| |
| for (i = 0; i < NUM_STM_PROCESSORS; i++) { |
| driver->stm_state_requested[i] = DISABLE_STM; |
| driver->stm_state[i] = DISABLE_STM; |
| } |
| |
| for (i = 0; i < NUM_SMD_DATA_CHANNELS; i++) { |
| success = diag_smd_constructor(&driver->smd_data[i], i, |
| SMD_DATA_TYPE); |
| if (!success) |
| goto err; |
| } |
| |
| if (driver->supports_separate_cmdrsp) { |
| for (i = 0; i < NUM_SMD_CMD_CHANNELS; i++) { |
| success = diag_smd_constructor(&driver->smd_cmd[i], i, |
| SMD_CMD_TYPE); |
| if (!success) |
| goto err; |
| } |
| } |
| |
| if (driver->usb_buf_out == NULL && |
| (driver->usb_buf_out = kzalloc(USB_MAX_OUT_BUF, |
| GFP_KERNEL)) == NULL) |
| goto err; |
| kmemleak_not_leak(driver->usb_buf_out); |
| if (driver->hdlc_buf == NULL |
| && (driver->hdlc_buf = kzalloc(HDLC_MAX, GFP_KERNEL)) == NULL) |
| goto err; |
| kmemleak_not_leak(driver->hdlc_buf); |
| if (driver->client_map == NULL && |
| (driver->client_map = kzalloc |
| ((driver->num_clients) * sizeof(struct diag_client_map), |
| GFP_KERNEL)) == NULL) |
| goto err; |
| kmemleak_not_leak(driver->client_map); |
| if (driver->buf_tbl == NULL) |
| driver->buf_tbl = kzalloc(driver->buf_tbl_size * |
| sizeof(struct diag_write_device), GFP_KERNEL); |
| if (driver->buf_tbl == NULL) |
| goto err; |
| kmemleak_not_leak(driver->buf_tbl); |
| if (driver->data_ready == NULL && |
| (driver->data_ready = kzalloc(driver->num_clients * sizeof(int) |
| , GFP_KERNEL)) == NULL) |
| goto err; |
| kmemleak_not_leak(driver->data_ready); |
| if (driver->table == NULL && |
| (driver->table = kzalloc(diag_max_reg* |
| sizeof(struct diag_master_table), |
| GFP_KERNEL)) == NULL) |
| goto err; |
| kmemleak_not_leak(driver->table); |
| |
| if (driver->usb_read_ptr == NULL) { |
| driver->usb_read_ptr = kzalloc( |
| sizeof(struct diag_request), GFP_KERNEL); |
| if (driver->usb_read_ptr == NULL) |
| goto err; |
| kmemleak_not_leak(driver->usb_read_ptr); |
| } |
| if (driver->pkt_buf == NULL && |
| (driver->pkt_buf = kzalloc(PKT_SIZE, |
| GFP_KERNEL)) == NULL) |
| goto err; |
| kmemleak_not_leak(driver->pkt_buf); |
| if (driver->apps_rsp_buf == NULL) { |
| driver->apps_rsp_buf = kzalloc(APPS_BUF_SIZE, GFP_KERNEL); |
| if (driver->apps_rsp_buf == NULL) |
| goto err; |
| kmemleak_not_leak(driver->apps_rsp_buf); |
| } |
| driver->diag_wq = create_singlethread_workqueue("diag_wq"); |
| #ifdef CONFIG_DIAG_OVER_USB |
| INIT_WORK(&(driver->diag_usb_connect_work), |
| diag_usb_connect_work_fn); |
| INIT_WORK(&(driver->diag_usb_disconnect_work), |
| diag_usb_disconnect_work_fn); |
| INIT_WORK(&(driver->diag_proc_hdlc_work), diag_process_hdlc_fn); |
| INIT_WORK(&(driver->diag_read_work), diag_read_work_fn); |
| driver->legacy_ch = usb_diag_open(DIAG_LEGACY, driver, |
| diag_usb_legacy_notifier); |
| if (IS_ERR(driver->legacy_ch)) { |
| printk(KERN_ERR "Unable to open USB diag legacy channel\n"); |
| goto err; |
| } |
| #endif |
| platform_driver_register(&msm_smd_ch1_driver); |
| platform_driver_register(&diag_smd_lite_driver); |
| |
| if (driver->supports_separate_cmdrsp) { |
| for (i = 0; i < NUM_SMD_CMD_CHANNELS; i++) |
| platform_driver_register(&smd_lite_data_cmd_drivers[i]); |
| } |
| |
| return; |
| err: |
| pr_err("diag: Could not initialize diag buffers"); |
| |
| for (i = 0; i < NUM_SMD_DATA_CHANNELS; i++) |
| diag_smd_destructor(&driver->smd_data[i]); |
| |
| for (i = 0; i < NUM_SMD_CMD_CHANNELS; i++) |
| diag_smd_destructor(&driver->smd_cmd[i]); |
| |
| kfree(driver->buf_msg_mask_update); |
| kfree(driver->buf_log_mask_update); |
| kfree(driver->buf_event_mask_update); |
| kfree(driver->usb_buf_out); |
| kfree(driver->hdlc_buf); |
| kfree(driver->client_map); |
| kfree(driver->buf_tbl); |
| kfree(driver->data_ready); |
| kfree(driver->table); |
| kfree(driver->pkt_buf); |
| kfree(driver->usb_read_ptr); |
| kfree(driver->apps_rsp_buf); |
| if (driver->diag_wq) |
| destroy_workqueue(driver->diag_wq); |
| } |
| |
| void diagfwd_exit(void) |
| { |
| int i; |
| |
| for (i = 0; i < NUM_SMD_DATA_CHANNELS; i++) |
| diag_smd_destructor(&driver->smd_data[i]); |
| |
| #ifdef CONFIG_DIAG_OVER_USB |
| if (driver->usb_connected) |
| usb_diag_free_req(driver->legacy_ch); |
| usb_diag_close(driver->legacy_ch); |
| #endif |
| platform_driver_unregister(&msm_smd_ch1_driver); |
| platform_driver_unregister(&diag_smd_lite_driver); |
| |
| if (driver->supports_separate_cmdrsp) { |
| for (i = 0; i < NUM_SMD_CMD_CHANNELS; i++) { |
| diag_smd_destructor(&driver->smd_cmd[i]); |
| platform_driver_unregister( |
| &smd_lite_data_cmd_drivers[i]); |
| } |
| } |
| |
| kfree(driver->buf_msg_mask_update); |
| kfree(driver->buf_log_mask_update); |
| kfree(driver->buf_event_mask_update); |
| kfree(driver->usb_buf_out); |
| kfree(driver->hdlc_buf); |
| kfree(driver->client_map); |
| kfree(driver->buf_tbl); |
| kfree(driver->data_ready); |
| kfree(driver->table); |
| kfree(driver->pkt_buf); |
| kfree(driver->usb_read_ptr); |
| kfree(driver->apps_rsp_buf); |
| destroy_workqueue(driver->diag_wq); |
| } |