Shad Ansari | 2f7f9be | 2017-06-07 13:34:53 -0700 | [diff] [blame^] | 1 | #include <linux/proc_fs.h> |
| 2 | #include <bcmolt_tr_nl_driver.h> |
| 3 | #include <bcmolt_dev_log_kernel.h> |
| 4 | #include <bcm_dev_log.h> |
| 5 | #include <bcmolt_dev_ctrl.h> |
| 6 | #include <bcmolt_tr_mux.h> |
| 7 | #include <bcmos_system.h> |
| 8 | #include <linux/cdev.h> |
| 9 | #include <asm/uaccess.h> /*copy_from_user*/ |
| 10 | #include <linux/proc_fs.h> |
| 11 | #include <bcmolt_dev_ctrl_ioctl.h> |
| 12 | #include <bcmolt_user_utils.h> |
| 13 | #include <bcmolt_host_api.h> |
| 14 | #include <bcmolt_fld.h> |
| 15 | #include <bcmtr_pcie.h> |
| 16 | |
| 17 | module_param(bcmos_sys_trace_level, uint, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); |
| 18 | MODULE_PARM_DESC(bcmos_sys_trace_level, "trace_level"); |
| 19 | |
| 20 | |
| 21 | int maple_dev_ctrl_chrdev_major = 237; |
| 22 | module_param(maple_dev_ctrl_chrdev_major, int, S_IRUSR | S_IRGRP | S_IWGRP); |
| 23 | MODULE_PARM_DESC(maple_dev_ctrl_chrdev_major, "maple_dev_ctrl_major"); |
| 24 | static char is_chrdev_reg; |
| 25 | static char is_cdev_add; |
| 26 | |
| 27 | extern struct proc_dir_entry *bcmolt_dir; |
| 28 | |
| 29 | bcmos_errno bcmtr_init(void) |
| 30 | { |
| 31 | return BCM_ERR_OK; |
| 32 | } |
| 33 | |
| 34 | /* /proc/bcmolt/trmux read operation */ |
| 35 | static int trmux_stats_read(char *page, char **start, off_t off, int count, int *eof, void *data) |
| 36 | { |
| 37 | static bcmtrmux_stat prev_stat; |
| 38 | int len; |
| 39 | bcmtrmux_stat stat; |
| 40 | bcmos_errno rc; |
| 41 | bcmolt_devid *device_id = data; |
| 42 | |
| 43 | rc = bcmtrmux_stat_get(*device_id, &stat); |
| 44 | if (rc) |
| 45 | { |
| 46 | len = snprintf(page, count, "Can't read trmux statistics rc=%s\n", bcmos_strerror(rc)); |
| 47 | return len; |
| 48 | } |
| 49 | |
| 50 | len = snprintf(page, count, "trmux statistics\n\n"); |
| 51 | len += sprintf(page + len, "tx_remote : %u\n", stat.tx_remote - prev_stat.tx_remote); |
| 52 | len += sprintf(page + len, "tx_local : %u\n", stat.tx_local - prev_stat.tx_local); |
| 53 | len += sprintf(page + len, "tx_disc_remote : %u\n", stat.tx_disc_remote - prev_stat.tx_disc_remote); |
| 54 | len += sprintf(page + len, "tx_disc_local : %u\n", stat.tx_disc_local - prev_stat.tx_disc_local); |
| 55 | len += sprintf(page + len, "rx_remote : %u\n", stat.rx_remote - prev_stat.rx_remote); |
| 56 | len += sprintf(page + len, "rx_local : %u\n", stat.rx_local - prev_stat.rx_local); |
| 57 | len += sprintf(page + len, "rx_auto : %u\n", stat.rx_auto - prev_stat.rx_auto); |
| 58 | len += sprintf(page + len, "rx_disc_remote : %u\n", stat.rx_disc_remote - prev_stat.rx_disc_remote); |
| 59 | len += sprintf(page + len, "rx_disc_local : %u\n", stat.rx_disc_local - prev_stat.rx_disc_local); |
| 60 | len += sprintf(page + len, "rx_disc_auto : %u\n", stat.rx_disc_auto - prev_stat.rx_disc_auto); |
| 61 | len += sprintf(page + len, "ctl_to_host : %u\n", stat.control_to_host - prev_stat.control_to_host); |
| 62 | len += sprintf(page + len, "ctl_to_line : %u\n", stat.control_to_line - prev_stat.control_to_line); |
| 63 | len += sprintf(page + len, "rx_disc_inv_ch : %u\n", stat.rx_disc_inv_ch - prev_stat.rx_disc_inv_ch); |
| 64 | len += sprintf(page + len, "rx_poll_urgent : %u\n", stat.rx_poll_urgent - prev_stat.rx_poll_urgent); |
| 65 | len += sprintf(page + len, "rx_poll_normal : %u\n", stat.rx_poll_normal - prev_stat.rx_poll_normal); |
| 66 | prev_stat = stat; |
| 67 | |
| 68 | return len; |
| 69 | } |
| 70 | |
| 71 | /* /proc/bcmolt/devctrl read operation */ |
| 72 | static int devctrl_debug_read(char *page, char **start, off_t off, int count, int *eof, void *data) |
| 73 | { |
| 74 | int len; |
| 75 | dev_ctrl_database db; |
| 76 | bcmolt_devid *device_id = data; |
| 77 | |
| 78 | dev_ctrl_read_db(*device_id, &db); |
| 79 | |
| 80 | /* db contains the entire copy of dev_ctrl_database. add whatever you want to print. */ |
| 81 | len = snprintf(page, count, "dev_ctrl debug information\n\n"); |
| 82 | len += sprintf(page + len, "task name : %s\n", db.task_info.name); |
| 83 | len += sprintf(page + len, "module name : %s\n", db.module_info.name); |
| 84 | len += sprintf(page + len, "connection state : %s\n", |
| 85 | bcm_str_host_connecting_state(db.connection_info.state)); |
| 86 | len += sprintf(page + len, "tod : %s\n", |
| 87 | (db.enable_tod == BCMOLT_CONTROL_STATE_DISABLE) ? "DISABLE" : "ENABLE"); |
| 88 | len += sprintf(page + len, "last event : %s\n", bcm_str_device_event(db.last_event)); |
| 89 | if (db.conn_fail_reason < BCMOLT_HOST_CONNECTION_FAIL_REASON__NUM_OF) |
| 90 | len += sprintf(page + len, "connection failure reason : %s\n", |
| 91 | bcm_str_host_connection_fail_reason(db.conn_fail_reason)); |
| 92 | return len; |
| 93 | } |
| 94 | |
| 95 | #ifdef ENABLE_LOG |
| 96 | static bcmos_errno dev_ctrl_logger_init_cb(void) |
| 97 | { |
| 98 | bcmos_errno rc; |
| 99 | |
| 100 | /* Create kernel logger */ |
| 101 | rc = bcm_dev_log_linux_init(); |
| 102 | BUG_ON(rc); |
| 103 | |
| 104 | /* For now just map BCMOS_TRACE_XX to dev_log. Later on dev_control |
| 105 | * can define its own log ids |
| 106 | */ |
| 107 | rc = bcm_dev_log_os_trace_init(); |
| 108 | BUG_ON(rc); |
| 109 | |
| 110 | return rc; |
| 111 | } |
| 112 | #endif |
| 113 | |
| 114 | static struct cdev maple_dev_ctrl_chrdev_cdev; |
| 115 | static int maple_dev_ctrl_chrdev_open(struct inode *inode, struct file *filp) |
| 116 | { |
| 117 | return 0; |
| 118 | } |
| 119 | |
| 120 | static int maple_dev_ctrl_chrdev_release(struct inode *inode, struct file *filp) |
| 121 | { |
| 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | static long maple_dev_ctrl_chrdev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
| 126 | { |
| 127 | bcmos_errno bcmrc; |
| 128 | int linux_rc = 0; |
| 129 | int rc = 0; |
| 130 | dev_ctrl_ioctl_param params; |
| 131 | |
| 132 | /* don't even decode wrong cmds: better returning ENOTTY than EFAULT */ |
| 133 | if (_IOC_TYPE(cmd) != MAPLE_DEV_CTRL_IOCTL_MAGIC) |
| 134 | return -ENOTTY; |
| 135 | |
| 136 | rc = copy_from_user((char *)¶ms, (char *)arg, sizeof(params)); |
| 137 | if (rc < 0) |
| 138 | return rc; |
| 139 | |
| 140 | switch (cmd) |
| 141 | { |
| 142 | case MAPLE_DEV_CTRL_IOCTL_OP_PCI_STAT: |
| 143 | { |
| 144 | bcm_pcied_stat stat; |
| 145 | |
| 146 | memset(params.dumpptr, 0, sizeof(bcm_pcied_stat)); |
| 147 | bcmrc = bcmtr_pcie_get_statistics(params.device, params.start_index, &stat); |
| 148 | if (bcmrc == BCM_ERR_OK) |
| 149 | memcpy(params.dumpptr, &stat, sizeof(bcm_pcied_stat)); |
| 150 | else |
| 151 | linux_rc = (int)bcmrc; |
| 152 | } |
| 153 | break; |
| 154 | case MAPLE_DEV_CTRL_IOCTL_OP_PCI_DUMP_TX: |
| 155 | linux_rc = (int)bcmtr_pcie_tx_dump((char *)params.dumpptr, params.device, params.start_index, params.howmany); |
| 156 | break; |
| 157 | case MAPLE_DEV_CTRL_IOCTL_OP_PCI_DUMP_RX: |
| 158 | linux_rc = (int)bcmtr_pcie_rx_dump((char *)params.dumpptr, params.device, params.start_index, params.howmany); |
| 159 | break; |
| 160 | case MAPLE_DEV_CTRL_IOCTL_OP_HOST_EVENT_WRITE: |
| 161 | linux_rc = (int)bcmolt_dev_ctrl_host_event_write(params.device, params.event); |
| 162 | break; |
| 163 | default: |
| 164 | rc = -ENOTTY; |
| 165 | break; |
| 166 | } |
| 167 | |
| 168 | return linux_rc; |
| 169 | } |
| 170 | static ssize_t maple_dev_ctrl_chrdev_write(struct file *filp, const char __user *buf, |
| 171 | size_t count, loff_t *f_pos) |
| 172 | { |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | static struct file_operations maple_dev_ctrl_chrdev_fops = |
| 177 | { |
| 178 | .owner = THIS_MODULE, |
| 179 | .open = maple_dev_ctrl_chrdev_open, |
| 180 | .release = maple_dev_ctrl_chrdev_release, |
| 181 | .write = maple_dev_ctrl_chrdev_write, |
| 182 | .unlocked_ioctl = maple_dev_ctrl_chrdev_ioctl |
| 183 | }; |
| 184 | |
| 185 | static int maple_dev_ctrl_dev_create_chrdev(void) |
| 186 | { |
| 187 | dev_t dev = MKDEV(maple_dev_ctrl_chrdev_major, 0); |
| 188 | int linux_rc; |
| 189 | is_chrdev_reg = 0; |
| 190 | is_cdev_add = 0; |
| 191 | /* |
| 192 | * Register your major, and accept a dynamic number. |
| 193 | */ |
| 194 | if (!maple_dev_ctrl_chrdev_major) |
| 195 | return -1; |
| 196 | linux_rc = register_chrdev_region(dev, 0, "maple_dev_ctrl"); |
| 197 | if (linux_rc < 0) |
| 198 | { |
| 199 | printk("register_chrdev_region()->%d\n", linux_rc); |
| 200 | return -EIO; |
| 201 | } |
| 202 | is_chrdev_reg = 1; |
| 203 | |
| 204 | cdev_init(&maple_dev_ctrl_chrdev_cdev, &maple_dev_ctrl_chrdev_fops); |
| 205 | linux_rc = cdev_add(&maple_dev_ctrl_chrdev_cdev, dev, 1); |
| 206 | if (linux_rc < 0) |
| 207 | { |
| 208 | printk("cdev_add()->%d\n", linux_rc); |
| 209 | return -EIO; |
| 210 | } |
| 211 | is_cdev_add = 1; |
| 212 | return 0; |
| 213 | } |
| 214 | |
| 215 | |
| 216 | #define BCMOLT_PROCFS_NAME_LEN 4 /* device_id is 1-byte, which can be 3 digit in decimal. */ |
| 217 | #define PROC_TRMUX_NAME "trmux" |
| 218 | #define PROC_DEVCTRL_NAME "devctrl" |
| 219 | #define PROC_ENTRY_MODE (S_IFREG | S_IWUSR | S_IRUGO) |
| 220 | |
| 221 | typedef struct |
| 222 | { |
| 223 | bcmolt_devid device_id; |
| 224 | char name[BCMOLT_PROCFS_NAME_LEN]; |
| 225 | } bcmolt_proc_ctx_t; |
| 226 | |
| 227 | static bcmolt_proc_ctx_t bcmolt_proc_ctx[BCMTR_MAX_OLTS]; |
| 228 | static bcmos_bool bcmdev_bcmolt_proc_initialized; |
| 229 | struct proc_dir_entry *trmux_dir = NULL; |
| 230 | struct proc_dir_entry *devctrl_dir = NULL; |
| 231 | |
| 232 | static void bcmdev_bcmolt_proc_init(void) |
| 233 | { |
| 234 | bcmolt_devid devid; |
| 235 | if (!bcmdev_bcmolt_proc_initialized) |
| 236 | { |
| 237 | for (devid = 0; devid < BCMTR_MAX_OLTS; devid++) |
| 238 | { |
| 239 | bcmolt_proc_ctx[devid].device_id = devid; |
| 240 | sprintf(bcmolt_proc_ctx[devid].name, "%d", devid); |
| 241 | } |
| 242 | bcmdev_bcmolt_proc_initialized = BCMOS_TRUE; |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | static void bcmdev_module_exit(void) |
| 247 | { |
| 248 | int devid; |
| 249 | |
| 250 | if (trmux_dir) |
| 251 | { |
| 252 | for (devid = 0; devid < BCMTR_MAX_OLTS; devid++) |
| 253 | { |
| 254 | remove_proc_entry(bcmolt_proc_ctx[devid].name, trmux_dir); |
| 255 | } |
| 256 | remove_proc_entry(PROC_TRMUX_NAME, bcmolt_dir); |
| 257 | } |
| 258 | if (devctrl_dir) |
| 259 | { |
| 260 | for (devid = 0; devid < BCMTR_MAX_OLTS; devid++) |
| 261 | { |
| 262 | remove_proc_entry(bcmolt_proc_ctx[devid].name, devctrl_dir); |
| 263 | } |
| 264 | remove_proc_entry(PROC_DEVCTRL_NAME, bcmolt_dir); |
| 265 | } |
| 266 | |
| 267 | bcmolt_dev_ctrl_exit(); |
| 268 | bcmtr_nl_exit(); |
| 269 | if (is_cdev_add) |
| 270 | cdev_del(&maple_dev_ctrl_chrdev_cdev); |
| 271 | if (is_chrdev_reg) |
| 272 | unregister_chrdev_region(MKDEV(maple_dev_ctrl_chrdev_major, 0), 1); |
| 273 | #if defined(ENABLE_LOG) |
| 274 | bcm_dev_log_linux_exit(); |
| 275 | bcm_dev_log_destroy(); |
| 276 | #endif |
| 277 | printk("%s\n", __FUNCTION__); |
| 278 | } |
| 279 | |
| 280 | static int bcmdev_module_init(void) |
| 281 | { |
| 282 | bcmos_errno rc; |
| 283 | struct proc_dir_entry *trmux_file; |
| 284 | struct proc_dir_entry *devctrl_file; |
| 285 | bcmolt_devid devid; |
| 286 | bcmolt_host_init_params params = |
| 287 | { |
| 288 | #ifdef ENABLE_LOG |
| 289 | .logger_init_cb = dev_ctrl_logger_init_cb, |
| 290 | #endif |
| 291 | .dev_ctrl_params = |
| 292 | { |
| 293 | .image_read_cb = bcmuser_image_read, |
| 294 | .system_mode_validate_cb = bcmuser_system_mode_validate, |
| 295 | .device_off_cb = bcmuser_device_off, |
| 296 | .device_on_cb = bcmuser_device_on, |
| 297 | .device_is_running_cb = bcmuser_device_is_running, |
| 298 | .host_reset_cb = bcmuser_host_reset, |
| 299 | .pcie_channel_prepare_cb = bcmuser_pcie_channel_prepare, |
| 300 | .pcie_channel_remove_cb = bcmuser_pcie_channel_remove, |
| 301 | } |
| 302 | }; |
| 303 | |
| 304 | if (!is_cdev_add) |
| 305 | { |
| 306 | if (maple_dev_ctrl_dev_create_chrdev() < 0) |
| 307 | printk("%s error to create dev ctrl cdev \n", __FUNCTION__); |
| 308 | } |
| 309 | |
| 310 | printk("%s\n", __FUNCTION__); |
| 311 | |
| 312 | rc = bcmolt_host_init(¶ms); |
| 313 | BUG_ON(rc); |
| 314 | |
| 315 | bcmos_trace_level_set(BCMOS_TRACE_LEVEL_DEBUG); |
| 316 | |
| 317 | bcmdev_bcmolt_proc_init(); |
| 318 | |
| 319 | rc = bcmtr_nl_init(); |
| 320 | BUG_ON(rc); |
| 321 | |
| 322 | rc = bcmuser_pcie_prepare(); |
| 323 | |
| 324 | if (rc == BCM_ERR_OK) |
| 325 | { |
| 326 | if ((trmux_dir = create_proc_entry(PROC_TRMUX_NAME, S_IFDIR, bcmolt_dir)) == NULL) |
| 327 | { |
| 328 | printk("Unable to create /proc/bcmolt/trmux directory\n"); |
| 329 | return -1; |
| 330 | } |
| 331 | |
| 332 | if ((devctrl_dir = create_proc_entry(PROC_DEVCTRL_NAME, S_IFDIR, bcmolt_dir)) == NULL) |
| 333 | { |
| 334 | printk("Unable to create /proc/bcmolt/devctrl directory\n"); |
| 335 | return -1; |
| 336 | } |
| 337 | |
| 338 | for (devid = 0; devid < BCMTR_MAX_OLTS; devid++) |
| 339 | { |
| 340 | if ((trmux_file = create_proc_entry(bcmolt_proc_ctx[devid].name, PROC_ENTRY_MODE, trmux_dir)) == NULL) |
| 341 | { |
| 342 | printk("Unable to create /proc/bcmolt/%s/%s\n", PROC_TRMUX_NAME, bcmolt_proc_ctx[devid].name); |
| 343 | return -1; |
| 344 | } |
| 345 | trmux_file->read_proc = (read_proc_t *)trmux_stats_read; |
| 346 | trmux_file->data = &bcmolt_proc_ctx[devid].device_id; |
| 347 | |
| 348 | if ((devctrl_file = create_proc_entry(bcmolt_proc_ctx[devid].name, PROC_ENTRY_MODE, devctrl_dir)) == NULL) |
| 349 | { |
| 350 | printk("Unable to create /proc/bcmolt/%s/%s\n", PROC_DEVCTRL_NAME, bcmolt_proc_ctx[devid].name); |
| 351 | return -1; |
| 352 | } |
| 353 | devctrl_file->read_proc = (read_proc_t *)devctrl_debug_read; |
| 354 | devctrl_file->data = &bcmolt_proc_ctx[devid].device_id; |
| 355 | } |
| 356 | } |
| 357 | else |
| 358 | { |
| 359 | bcmos_usleep(2000000); |
| 360 | bcmdev_module_exit(); |
| 361 | } |
| 362 | |
| 363 | return rc ? -EINVAL : 0; |
| 364 | } |
| 365 | |
| 366 | module_init(bcmdev_module_init); |
| 367 | module_exit(bcmdev_module_exit); |
| 368 | |
| 369 | MODULE_DESCRIPTION("device_control"); |
| 370 | MODULE_LICENSE("Dual BSD/GPL"); |