diff options
| -rw-r--r-- | AUTHORS | 2 | ||||
| -rw-r--r-- | INSTALL | 370 | ||||
| -rw-r--r-- | configure.ac | 2 | ||||
| -rw-r--r-- | io-module/Makefile | 2 | ||||
| -rw-r--r-- | io-module/adc.c | 1 | ||||
| -rw-r--r-- | io-module/machine/mtcap.c | 2 | ||||
| -rw-r--r-- | io-module/machine/mtcap3.c | 19 | ||||
| -rw-r--r-- | io-module/machine/mths.c | 2 | ||||
| -rw-r--r-- | io-module/machine/mtr.c | 369 | ||||
| -rw-r--r-- | io-module/mts-io.c | 72 | ||||
| -rw-r--r-- | io-module/mts_io_module.h | 4 | ||||
| -rw-r--r-- | io-module/radio_udev_discovery.c | 308 | ||||
| -rw-r--r-- | io-module/radio_udev_discovery.h | 24 | ||||
| -rwxr-xr-x | test/resettest.sh | 46 |
14 files changed, 800 insertions, 423 deletions
@@ -1 +1 @@ -James Maki <jmaki@multitech.com> +Multi-Tech diff --git a/INSTALL b/INSTALL deleted file mode 100644 index 007e939..0000000 --- a/INSTALL +++ /dev/null @@ -1,370 +0,0 @@ -Installation Instructions -************************* - -Copyright (C) 1994-1996, 1999-2002, 2004-2013 Free Software Foundation, -Inc. - - Copying and distribution of this file, with or without modification, -are permitted in any medium without royalty provided the copyright -notice and this notice are preserved. This file is offered as-is, -without warranty of any kind. - -Basic Installation -================== - - Briefly, the shell commands `./configure; make; make install' should -configure, build, and install this package. The following -more-detailed instructions are generic; see the `README' file for -instructions specific to this package. Some packages provide this -`INSTALL' file but do not implement all of the features documented -below. 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FILE defaults to `/dev/null' to - disable caching. - -`--config-cache' -`-C' - Alias for `--cache-file=config.cache'. - -`--quiet' -`--silent' -`-q' - Do not print messages saying which checks are being made. To - suppress all normal output, redirect it to `/dev/null' (any error - messages will still be shown). - -`--srcdir=DIR' - Look for the package's source code in directory DIR. Usually - `configure' can determine that directory automatically. - -`--prefix=DIR' - Use DIR as the installation prefix. *note Installation Names:: - for more details, including other options available for fine-tuning - the installation locations. - -`--no-create' -`-n' - Run the configure checks, but stop before creating any output - files. - -`configure' also accepts some other, not widely useful, options. Run -`configure --help' for more details. diff --git a/configure.ac b/configure.ac index fc176d5..99f7a9a 100644 --- a/configure.ac +++ b/configure.ac @@ -1,4 +1,4 @@ -AC_INIT([mts-io], [4.6.0]) +AC_INIT([mts-io], [4.7.0]) AC_CONFIG_SRCDIR([util/mts_util_lora2_reset.c]) AM_INIT_AUTOMAKE AM_CONFIG_HEADER([config.h]) diff --git a/io-module/Makefile b/io-module/Makefile index 0c05414..e45e789 100644 --- a/io-module/Makefile +++ b/io-module/Makefile @@ -1,6 +1,6 @@ obj-m := mts_io.o -mts_io-objs := buttons.o mts-io.o mts_supercap.o +mts_io-objs := buttons.o mts-io.o mts_supercap.o radio_udev_discovery.o clean: rm -f *.ko *.o diff --git a/io-module/adc.c b/io-module/adc.c index 3d5f3d0..541dc95 100644 --- a/io-module/adc.c +++ b/io-module/adc.c @@ -118,7 +118,6 @@ static int mts_io_board_adc_probe(struct platform_device *pdev) static int mts_io_board_adc_remove(struct platform_device *pdev) { if (adc_clk) { - int ret; clk_disable_unprepare(adc_clk); } return 0; diff --git a/io-module/machine/mtcap.c b/io-module/machine/mtcap.c index 0d4af0f..e013f14 100644 --- a/io-module/machine/mtcap.c +++ b/io-module/machine/mtcap.c @@ -349,7 +349,7 @@ static int radio_reset_mtcap(int radio_model) if (!rst_pin || !onoff_pin) { return -ENODEV; } - + reset_radio_udev_discovery(); // // Unconditional shutdown // diff --git a/io-module/machine/mtcap3.c b/io-module/machine/mtcap3.c index 2304a28..8d2f3c4 100644 --- a/io-module/machine/mtcap3.c +++ b/io-module/machine/mtcap3.c @@ -373,7 +373,8 @@ static ssize_t mts_attr_store_radio_reset_mtcap3(struct device *dev, if (value != 0 && value != -1) { return -EINVAL; } - + + reset_radio_udev_discovery(); mutex_lock(&mts_io_mutex); radio_off_mtcap3(); @@ -453,6 +454,11 @@ static DEVICE_ATTR_MTS(dev_attr_led_lora_gpio_mtcap3, "led-lora", static DEVICE_ATTR_MTS(dev_attr_led_extra_gpio_mtcap3, "led-extra", mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); +// here to maintain compatiblility +static DEVICE_ATTR_MTS(dev_attr_radio_enable_mtcap3, "radio-enable", + mts_attr_show_radio_enable_mtcap3, mts_attr_store_radio_enable_mtcap3); + + static struct attribute *mtcap3_0_0_platform_attributes[] = { &dev_attr_vendor_id.attr, &dev_attr_product_id.attr, @@ -481,6 +487,8 @@ static struct attribute *mtcap3_0_0_platform_attributes[] = { &dev_attr_radio_reset_backoff_index.attr, &dev_attr_radio_reset_backoff_seconds.attr, + &dev_attr_radio_enable_mtcap3.attr, + NULL, }; @@ -529,12 +537,3 @@ static struct attribute *mtcap3_0_0_lora_attributes[] = { static struct attribute_group mtcap3_0_0_lora_attribute_group = { .attrs = mtcap3_0_0_lora_attributes }; - -// here to maintain compatiblility -static DEVICE_ATTR_MTS(dev_attr_radio_enable_mtcap3, "radio-enable", - mts_attr_show_radio_enable_mtcap3, mts_attr_store_radio_enable_mtcap3); - -static struct attribute *mtcap3_0_0_enable_radio_attribute[] = { - &dev_attr_radio_enable_mtcap3.attr, -}; - diff --git a/io-module/machine/mths.c b/io-module/machine/mths.c index 1922d88..b74e69f 100644 --- a/io-module/machine/mths.c +++ b/io-module/machine/mths.c @@ -658,7 +658,7 @@ static int radio_reset_mths(void) if (!rst_pin || !onoff_pin) { return -ENODEV; } - + reset_radio_udev_discovery(); // drive reset pin low for 500ms gpio_set_value(rst_pin->pin.gpio, 0); diff --git a/io-module/machine/mtr.c b/io-module/machine/mtr.c index 9f00be8..3838fd2 100644 --- a/io-module/machine/mtr.c +++ b/io-module/machine/mtr.c @@ -1460,6 +1460,270 @@ static struct gpio_pin gpio_pins_mtrv1_0_3[] = { { }, }; +static struct gpio_pin gpio_pins_mtrv1_0_4[] = { + { + .name = "ETH_RESET", + .pin = { + .gpio = AT91_PIN_PC6, + .flags = GPIOF_OUT_INIT_HIGH | GPIOF_OPEN_DRAIN, /* without GPIOF_OPEN_DRAIN causes issues with the Micrel KSZ8091RNBCA (RMII) PHY */ + .label = "eth-reset", + }, + .active_low = 0, + }, + { + .name = "DEVICE_RESET", + .pin = { + .gpio = AT91_PIN_PC4, + .flags = GPIOF_IN, + .label = "reset", + }, + .active_low = 1, + }, + { + .name = "LS_LED", + .pin = { + .gpio = AT91_PIN_PC4, +#if LED_LS_CONTROLLABLE + .flags = GPIOF_OUT_INIT_HIGH, +#else + .flags = GPIOF_IN, +#endif + .label = "led-ls", + }, + .active_low = 1, + }, + { + .name = "STATUS_LED", + .pin = { + .gpio = AT91_PIN_PC21, + .flags = GPIOF_OUT_INIT_LOW, + .label = "led-status", + }, + .active_low = 1, + }, + { + .name = "LED3", + .pin = { + .gpio = AT91_PIN_PC15, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-wifi", + }, + .active_low = 1, + }, + { + .name = "LED3", + .pin = { + .gpio = AT91_PIN_PC15, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-b", + }, + .active_low = 1, + }, + { + .name = "LED4", + .pin = { + .gpio = AT91_PIN_PC20, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-cd", + }, + .active_low = 1, + }, + { + .name = "LED4", + .pin = { + .gpio = AT91_PIN_PC20, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-c", + }, + .active_low = 1, + }, + { + .name = "LED6", + .pin = { + .gpio = AT91_PIN_PC19, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-sig1", + }, + .active_low = 1, + }, + { + .name = "LED6", + .pin = { + .gpio = AT91_PIN_PC19, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-d", + }, + .active_low = 1, + }, + { + .name = "LED7", + .pin = { + .gpio = AT91_PIN_PC18, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-sig2", + }, + .active_low = 1, + }, + { + .name = "LED7", + .pin = { + .gpio = AT91_PIN_PC18, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-e", + }, + .active_low = 1, + }, + { + .name = "LED8", + .pin = { + .gpio = AT91_PIN_PC17, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-sig3", + }, + .active_low = 1, + }, + { + .name = "LED8", + .pin = { + .gpio = AT91_PIN_PC17, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "led-f", + }, + .active_low = 1, + }, + { // Moved in MTRV1-0.4 + .name = "RI_B", + .pin = { + .gpio = AT91_PIN_PC14, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "extserial-ri", + }, + .active_low = 1, + }, + { + .name = "DTR_B", + .pin = { + .gpio = AT91_PIN_PC26, + .flags = GPIOF_IN, + .label = "extserial-dtr", + }, + .active_low = 1, + }, + { + .name = "DSR_B", + .pin = { + .gpio = AT91_PIN_PC27, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "extserial-dsr", + }, + .active_low = 1, + }, + { + .name = "DCD_B", + .pin = { + .gpio = AT91_PIN_PC28, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "extserial-dcd", + }, + .active_low = 1, + }, + + // The difference between MTRv1_0_0 and MTRv1_0_1 starts here + { + .name = "WIFI_BT_ULPWKUP", + .pin = { + .gpio = AT91_PIN_PA0, + .flags = GPIOF_IN, + .label = "wifi-bt-ulpwkup", + } + }, + { + .name = "WIFI_BT_LPWKUP", + .pin = { + .gpio = AT91_PIN_PA6, + .flags = GPIOF_IN, + .label = "wifi-bt-lpwkup", + } + }, + { + .name = "WIFI_BT_INT", + .pin = { + .gpio = AT91_PIN_PB11, + .flags = GPIOF_IN, + .label = "wifi-bt-int", + } + }, + { + .name = "WIFI_BT_RESET", + .pin = { + .gpio = AT91_PIN_PD14, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "wifi-bt-reset", + } + }, + { + .name = "WIFI_BT_LPMODE", + .pin = { + .gpio = AT91_PIN_PD20, + .flags = GPIOF_IN, + .label = "wifi-bt-lpmode", + } + }, + { + .name = "GNSS_RESET", + .pin = { + .gpio = AT91_PIN_PD15, + .flags = GPIOF_OUT_INIT_LOW, + .label = "gnss-reset", + } + }, + { + .name = "SECURE_RESET", + .pin = { + .gpio = AT91_PIN_PD16, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "secure-reset", + } + }, + { + .name = "MTQ_RESET", + .pin = { + .gpio = AT91_PIN_PD17, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "radio-reset", + } + }, + { + .name = "GNSS_INT", + .pin = { + .gpio = AT91_PIN_PD19, + .flags = GPIOF_OUT_INIT_HIGH, + .label = "gnss-int", + } + }, + // Difference with mtrv1_0_1 starts here + { + .name = "RADIO_WM_LK_M", // WM LINK Monitor for CAT M + .pin = { + .gpio = AT91_PIN_PA14, + .flags = GPIOF_IN, + .label = "radio-wm-lk-m", + } + }, + // RADIO_STATUS must be at the end, because it might be removed + // if we ever support a Telit module which has no radio status. + { + .name = "RADIO_STATUS", + .pin = { + .gpio = AT91_PIN_PA28, + .flags = GPIOF_IN, + .label = "radio-status", + } + }, + + { }, +}; + /* radio control (power/reset) for mtr */ static int radio_off_mtr(void) { @@ -1561,7 +1825,7 @@ static int radio_reset_mtr(void) if (!rst_pin || !onoff_pin) { return -ENODEV; } - + reset_radio_udev_discovery(); // drive reset pin low for 500ms gpio_set_value(rst_pin->pin.gpio, 0); @@ -1590,7 +1854,7 @@ static int radio_reset_mtr_mtq(void) if (!rst_pin) { return -ENODEV; } - + reset_radio_udev_discovery(); // drive reset pin low for 500ms gpio_set_value(rst_pin->pin.gpio, 0); @@ -1670,7 +1934,7 @@ static ssize_t mts_attr_store_radio_reset_mtr(struct device *dev, mutex_lock(&mts_io_mutex); - if (mts_hw_version == MTRV1_0_3) + if (mts_hw_version == MTRV1_0_3 || mts_hw_version == MTRV1_0_4) { err = radio_reset_mtr_mtq(); } @@ -1766,6 +2030,9 @@ static DEVICE_ATTR_MTS(dev_attr_usbhub_reset_mtr, "usbhub-reset", static DEVICE_ATTR_RO_MTS(dev_attr_gnss_int_mtr, "gnss-int", mts_attr_show_gpio_pin); +static DEVICE_ATTR_RO_MTS(dev_attr_radio_status_mtr, "radio-status", + mts_attr_show_gpio_pin); + static DEVICE_ATTR_RO_MTS(dev_attr_radio_wm_lk_m, "radio-wm-lk-m", mts_attr_show_gpio_pin); @@ -1816,6 +2083,9 @@ static struct attribute *mtr_platform_attributes[] = { &dev_attr_radio_reset_backoff_index.attr, &dev_attr_radio_reset_backoff_seconds.attr, + // UDEV notification of radio discovery + &dev_attr_radio_udev_discovery.attr, + &dev_attr_radio_reset_monitor.attr, NULL, }; @@ -1873,7 +2143,8 @@ static struct attribute *mtrv1_0_1_platform_attributes[] = { &dev_attr_led_d_gpio.attr, &dev_attr_led_e_gpio.attr, &dev_attr_led_f_gpio_mtr.attr, - + &dev_attr_radio_udev_discovery.attr, + &dev_attr_radio_reset_monitor.attr, NULL, }; @@ -1931,8 +2202,9 @@ static struct attribute *mtrv1_0_2_platform_attributes[] = { &dev_attr_led_e_gpio.attr, &dev_attr_led_f_gpio_mtr.attr, - &dev_attr_radio_wm_lk_m.attr, // CAT M feature - + &dev_attr_radio_wm_lk_m.attr, // CAT M feature + &dev_attr_radio_udev_discovery.attr, + &dev_attr_radio_reset_monitor.attr, NULL, }; @@ -1990,11 +2262,92 @@ static struct attribute *mtrv1_0_3_platform_attributes[] = { &dev_attr_led_e_gpio.attr, &dev_attr_led_f_gpio_mtr.attr, - &dev_attr_radio_wm_lk_m.attr, // CAT M feature? Is this still there on the MTQ with Quectel? - + &dev_attr_radio_wm_lk_m.attr, // CAT M feature? Is this still there on the MTQ with Quectel? + &dev_attr_radio_udev_discovery.attr, + &dev_attr_radio_reset_monitor.attr, NULL, }; static struct attribute_group mtrv1_0_3_platform_attribute_group = { .attrs = mtrv1_0_3_platform_attributes }; + +static struct attribute *mtrv1_0_4_platform_attributes[] = { + &dev_attr_vendor_id.attr, + &dev_attr_product_id.attr, + &dev_attr_device_id.attr, + &dev_attr_uuid.attr, + &dev_attr_hw_version.attr, + &dev_attr_imei.attr, + &dev_attr_eth_mac.attr, + &dev_attr_has_radio.attr, + &dev_attr_wifi_mac_mtr.attr, + &dev_attr_bluetooth_mac_mtr.attr, + + &dev_attr_reset.attr, + &dev_attr_reset_monitor.attr, + &dev_attr_reset_monitor_intervals.attr, + &dev_attr_radio_reset_mtr.attr, + + &dev_attr_radio_reset_backoffs.attr, + &dev_attr_radio_reset_backoff_index.attr, + &dev_attr_radio_reset_backoff_seconds.attr, + + &dev_attr_extserial_ri_gpio_mtr.attr, + &dev_attr_extserial_dtr_mtr.attr, + &dev_attr_extserial_dsr_gpio_mtr.attr, + &dev_attr_extserial_dcd_gpio_mtr.attr, + + &dev_attr_eth_reset_mtr.attr, + &dev_attr_wifi_bt_lpwkup_mtr.attr, + &dev_attr_wifi_bt_ulpwkup_mtr.attr, + &dev_attr_wifi_bt_reset_mtr.attr, + &dev_attr_wifi_bt_lpmode_mtr.attr, + &dev_attr_wifi_bt_int_mtr.attr, + &dev_attr_gnss_reset_mtr.attr, + &dev_attr_gnss_int_mtr.attr, + &dev_attr_radio_status_mtr.attr, + + &dev_attr_led_status.attr, + &dev_attr_led_cd_gpio.attr, + &dev_attr_led_sig1_gpio.attr, + &dev_attr_led_sig2_gpio.attr, + &dev_attr_led_sig3_gpio.attr, + &dev_attr_led_wifi_gpio_mtr.attr, + + &dev_attr_led_b_gpio.attr, + &dev_attr_led_c_gpio.attr, + &dev_attr_led_d_gpio.attr, + &dev_attr_led_e_gpio.attr, + &dev_attr_led_f_gpio_mtr.attr, + + &dev_attr_radio_wm_lk_m.attr, // CAT M feature? Is this still there on the MTQ with Quectel? + &dev_attr_radio_udev_discovery.attr, + &dev_attr_radio_reset_monitor.attr, + NULL, +}; + +static struct attribute_group mtrv1_0_4_platform_attribute_group = { + .attrs = mtrv1_0_4_platform_attributes +}; + +// L4G1 is active low, but other modules are active-high. +int +mtr_setup_radio_status(const char *product_id) +{ + struct gpio_pin *pin; + int l4g1; + + l4g1 = (strstr(product_id,"L4G1") != NULL); + if (l4g1) { + pin = gpio_pin_by_attr_name("radio-status"); + if (pin == NULL) { + printk(KERN_ERR "mts-io mtr_setup_radio_status() cannot find radio-status gpio"); + return -ENODEV; + } + pin->active_low = 1; + return 0; + } + return 0; +} + diff --git a/io-module/mts-io.c b/io-module/mts-io.c index e4290a6..ed0cb49 100644 --- a/io-module/mts-io.c +++ b/io-module/mts-io.c @@ -49,6 +49,7 @@ #include "mts_io.h" #include "buttons.h" #include "mts_supercap.h" +#include "radio_udev_discovery.h" #define PLATFORM_NAME "mts-io" @@ -257,6 +258,7 @@ static ssize_t mts_attr_store_radio_reset(struct device *dev, radio_reset_timer_is_start = 1; } + reset_radio_udev_discovery(); log_info("radio is reset\n"); pin = gpio_pin_by_attr_name("radio-reset"); @@ -509,6 +511,13 @@ static DEVICE_ATTR_MTS(dev_attr_radio_reset_backoff_index, "radio-reset-backoff- static DEVICE_ATTR_RO_MTS(dev_attr_radio_reset_backoff_seconds, "radio-reset-backoff-seconds", mts_attr_show_radio_reset_backoff_seconds); +static DEVICE_ATTR_MTS(dev_attr_radio_udev_discovery, "radio-udev-discovery", + mts_attr_show_radio_udev_discovery, mts_attr_store_radio_udev_discovery); + +static DEVICE_ATTR_MTS(dev_attr_radio_reset_monitor, "radio-reset-monitor", + mts_attr_show_radio_reset_monitor, mts_attr_store_radio_reset_monitor); + + /* shared gpio-based LEDs */ static DEVICE_ATTR_MTS(dev_attr_led_status, "led-status", mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); @@ -878,6 +887,13 @@ mts_id_eeprom_load(void) set_buttons(default_buttons); mts_hw_version = MTRV1_0_3; log_info("detected board %s", HW_VERSION_MTRV1_0_3); + } else if (strncmp(id_eeprom.hw_version, HW_VERSION_MTRV1_0_4, strlen(HW_VERSION_MTRV1_0_4)) == 0) { + attr_group = &mtrv1_0_4_platform_attribute_group; + gpio_pins = gpio_pins_mtrv1_0_4; + set_buttons(default_buttons); + mts_hw_version = MTRV1_0_4; + mtr_setup_radio_status(id_eeprom.product_id); + log_info("detected board %s", HW_VERSION_MTRV1_0_4); } else if (strncmp(id_eeprom.hw_version, HW_VERSION_MTHS_0_0, strlen(HW_VERSION_MTHS_0_0)) == 0) { attr_group = &mths_0_0_platform_attribute_group; gpio_pins = gpio_pins_mths_0_0; @@ -1307,41 +1323,41 @@ static int __init mts_io_init(void) static void __exit mts_io_exit(void) { - if (DEVICE_CAPA(id_eeprom.capa, CAPA_DOUT)) { - spi_unregister_driver(&mts_spi_dout_driver); - } - if (DEVICE_CAPA(id_eeprom.capa, CAPA_DIN)) { - spi_unregister_driver(&mts_spi_din_driver); - } - spi_unregister_driver(&mts_spi_board_temp_driver); + struct gpio_pin *pin; + if (DEVICE_CAPA(id_eeprom.capa, CAPA_DOUT)) { + spi_unregister_driver(&mts_spi_dout_driver); + } + if (DEVICE_CAPA(id_eeprom.capa, CAPA_DIN)) { + spi_unregister_driver(&mts_spi_din_driver); + } + spi_unregister_driver(&mts_spi_board_temp_driver); - struct gpio_pin *pin; - /* delete radio_reset_timer */ - del_timer(&radio_reset_timer); - /* delete radio_reset_available_timer */ - del_timer(&radio_reset_available_timer); + /* delete radio_reset_timer */ + del_timer(&radio_reset_timer); + /* delete radio_reset_available_timer */ + del_timer(&radio_reset_available_timer); - for (pin = gpio_pins; *pin->name; pin++) - if (pin->capability == 0 || DEVICE_CAPA(id_eeprom.capa,pin->capability)) - gpio_free(pin->pin.gpio); + for (pin = gpio_pins; *pin->name; pin++) + if (pin->capability == 0 || DEVICE_CAPA(id_eeprom.capa,pin->capability)) + gpio_free(pin->pin.gpio); - cleanup_buttons(); + cleanup_buttons(); - //cleanup supercap monitor worker if SUPERCAP CAPA is true - if(DEVICE_CAPA(id_eeprom.capa, CAPA_SUPERCAP)) { - cleanup_supercap_worker(); - } + //cleanup supercap monitor worker if SUPERCAP CAPA is true + if(DEVICE_CAPA(id_eeprom.capa, CAPA_SUPERCAP)) { + cleanup_supercap_worker(); + } - cleanup(); + cleanup(); - if (mts_leds) { - mts_leds_unregister(); - } + if (mts_leds) { + mts_leds_unregister(); + } - if (DEVICE_CAPA(id_eeprom.capa, CAPA_LORA) && attr_group_lora) { - mts_teardown_lora_port(); - } - log_info("exiting"); + if (DEVICE_CAPA(id_eeprom.capa, CAPA_LORA) && attr_group_lora) { + mts_teardown_lora_port(); + } + log_info("exiting"); } module_init(mts_io_init); diff --git a/io-module/mts_io_module.h b/io-module/mts_io_module.h index 5655f29..3219753 100644 --- a/io-module/mts_io_module.h +++ b/io-module/mts_io_module.h @@ -5,7 +5,7 @@ * MTAC cards. */ -#define DRIVER_VERSION "v4.6.0" +#define DRIVER_VERSION "v4.7.0" #define DRIVER_AUTHOR "Multitech Systems" #define DRIVER_DESC "MTS-IO Controller" #define DRIVER_NAME "mts-io" @@ -32,6 +32,7 @@ #define HW_VERSION_MTRV1_0_1 "MTRV1-0.1" #define HW_VERSION_MTRV1_0_2 "MTRV1-0.2" // Cat M #define HW_VERSION_MTRV1_0_3 "MTRV1-0.3" // MTR-MTQ +#define HW_VERSION_MTRV1_0_4 "MTRV1-0.4" // MTR No USB hub #define HW_VERSION_MTRE "MTRE-0.0" #define HW_VERSION_MTCDT_0_0 "MTCDT-0.0" // No GPS or WiFi Capability #define HW_VERSION_MTCDT_0_1 "MTCDT-0.1" // Conduit refresh with GPS and WiFi possible @@ -65,6 +66,7 @@ enum { MTRV1_0_1, MTRV1_0_2, MTRV1_0_3, + MTRV1_0_4, MTRE_0_0, MTCDT_0_0, MTCDT_0_1, diff --git a/io-module/radio_udev_discovery.c b/io-module/radio_udev_discovery.c new file mode 100644 index 0000000..eb6c1aa --- /dev/null +++ b/io-module/radio_udev_discovery.c @@ -0,0 +1,308 @@ +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/platform_device.h> +#include "mts_io_module.h" +#include "radio_udev_discovery.h" + +/* + * radio-reset in the mts-io driver sets radio_udev_discovery to 0. + * Then it returns early if radio_udev_discovery is set to 1. The + * UDEV daemon is used to set radio_udev_discovery. Notifications + * are sent if radio_udev_discovery goes from 0 to 1. + */ + +int radio_udev_discovery = 1; + + +struct sig_pid_radio_reset_monitor_s { + pid_t pid; + int signal; + struct pid *vpid; +}; + +#define PID_MAX_COUNT 20 +static struct sig_pid_radio_reset_monitor_s sig_pid_radio_reset_monitor[PID_MAX_COUNT]; + + +/* Clear an entry in the table that no longer exists. + * unlocks the mts_io_lock, toggles the rcu_read_lock, + * then puts back the mts_io_lock. + */ +static int +verify_vpid(struct sig_pid_radio_reset_monitor_s *p) +{ + pid_t pid0 = p->pid; + struct pid *vpid1; + struct pid *vpid0 = p->vpid; + unsigned int vcount; + + // Check to see if vpid and pid still match + if (p->pid == 0) + return 0; + if (vpid0 == NULL) { + p->pid = 0; + return 0; + } + + mutex_unlock(&mts_io_mutex); + rcu_read_lock(); + vpid1 = find_vpid((pid_t)pid0); + if(vpid1 != NULL) + vcount = atomic_read(&vpid1->count); + else + vcount = 0; + rcu_read_unlock(); + mutex_lock(&mts_io_mutex); + if ((vpid1 != vpid0) || (vpid1 == NULL)) + p->pid = 0; + pr_debug("%s: verify_vpid: vpid0 0x%x vpid1 0x%x vcount %d for pid %d\n", + __FUNCTION__, + (unsigned int)vpid0, (unsigned int)vpid1, vcount, (int)pid0); + return p->pid; +} + +// Need to find existing entries and allow updates. Signal 0 removes a value. +ssize_t mts_attr_store_radio_reset_monitor(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +{ + long pid0; + int sig; + int i; + int found; + struct pid *vpid1, *vpid0; + int retval; + + retval = sscanf(buf, "%ld %d", &pid0, &sig); + if (retval != 2) + return -EINVAL; + + if (pid0 < 0) + return -EINVAL; + + rcu_read_lock(); + vpid0 = find_vpid((pid_t)pid0); + rcu_read_unlock(); + pr_debug("%s: Try to store %ld %d 0x%x\n", + __FUNCTION__, + pid0,sig,(unsigned int)vpid0); + if (vpid0) { + /* Note that since we no longer hold the rcu lock, vpid + * could become invalid, unless it is ours. + */ + mutex_lock(&mts_io_mutex); + /* First see if we are already in the table -- search whole table */ + found = -1; + for (i=0; i < PID_MAX_COUNT; i++) { + if ((sig_pid_radio_reset_monitor[i].pid == (pid_t)pid0) && + (sig_pid_radio_reset_monitor[i].vpid == vpid0)) { + if (sig == 0) { + sig_pid_radio_reset_monitor[i].pid = 0; + sig_pid_radio_reset_monitor[i].vpid = NULL; + } else { + sig_pid_radio_reset_monitor[i].signal = sig; + mutex_unlock(&mts_io_mutex); + rcu_read_lock(); + vpid0 = find_vpid((pid_t)pid0); + rcu_read_unlock(); + pr_debug("%s: slot %d: pid %d, vpid 0x%x/vpid 0x%x\n", + __FUNCTION__, + i,pid0,vpid0,sig_pid_radio_reset_monitor[i].vpid); + mutex_lock(&mts_io_mutex); + if (vpid0 != sig_pid_radio_reset_monitor[i].vpid) { + sig_pid_radio_reset_monitor[i].pid = 0; /* Maybe exited? */ + sig_pid_radio_reset_monitor[i].vpid = NULL; + pr_debug("%s: mts-io: vpid mismatch pid %d, vpid 0x%x/0x%x, sig %d, cleared %d\n", + __FUNCTION__, + (int)sig_pid_radio_reset_monitor[i].pid, + (unsigned int)sig_pid_radio_reset_monitor[i].vpid,(unsigned int)vpid0, + (unsigned int)sig_pid_radio_reset_monitor[i].signal,i); + } else { + found = i; + pr_debug("%s: mts-io: found pid %d, vpid 0x%x, sig %d\n", + __FUNCTION__, + (int)sig_pid_radio_reset_monitor[i].pid, + (unsigned int)sig_pid_radio_reset_monitor[i].vpid, + (unsigned int)sig_pid_radio_reset_monitor[i].signal); + sig = 0; // Clear any more that we find. + } + + } + } // Location matches our pid + } // Loop through table + + pr_debug("%s: found=%d, sig=%d\n",__FUNCTION__,sig); + if (found > -1) { + mutex_unlock(&mts_io_mutex); + return count; + } + + if (sig == 0) { + // Nothing to clear out. + mutex_unlock(&mts_io_mutex); + return count; + } + + /* Need to find an unused slot and save our signal and PID. + * Still holding mutex_lock(&mts_io_mutex) + * Find first open slot + */ + found = -1; + for (i=0; i < PID_MAX_COUNT; i++) { + if (sig_pid_radio_reset_monitor[i].pid == 0) { + sig_pid_radio_reset_monitor[i].pid = (pid_t)pid0; + sig_pid_radio_reset_monitor[i].signal = sig; + sig_pid_radio_reset_monitor[i].vpid = vpid0; + pr_debug("%s: mts-io: open slot: pid %d, vpid 0x%x, sig %d, slot %d\n", + __FUNCTION__, + (int)pid0, + (unsigned int)vpid0, + (unsigned int)sig, i); + found = i; + break; + } else { + // See if this slot may be used. + pid_t pid1 = sig_pid_radio_reset_monitor[i].pid; + if (pid1 > 0) { + mutex_unlock(&mts_io_mutex); + rcu_read_lock(); + vpid1 = find_vpid((pid_t)pid1); + rcu_read_unlock(); + mutex_lock(&mts_io_mutex); + // See if pid and vpid still exists + if (!vpid1 || (vpid1 != sig_pid_radio_reset_monitor[i].vpid)) { + // Make sure no one else has claimed this slot + if (pid1 == sig_pid_radio_reset_monitor[i].pid) { + sig_pid_radio_reset_monitor[i].pid = 0; + sig_pid_radio_reset_monitor[i].vpid = NULL; + i--; // Should be able to use this slot. + continue; + } // Has not been re-claimed. + } // Slot has no user or exited user + } // Verify that slot in use is still in use + } // Found an empty slot + } // Loop through all the slots. + mutex_unlock(&mts_io_mutex); + } // pid is in pid table + return count; +} + +// Examples say buf is PAGE_SIZE long +ssize_t mts_attr_show_radio_reset_monitor(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int count; + int max = PAGE_SIZE; + int ret; + int i; + pid_t pid1; + + mutex_lock(&mts_io_mutex); + + count = 0; + for (i=0; i < PID_MAX_COUNT; i++) { + pid1 = verify_vpid(sig_pid_radio_reset_monitor + i); + if (pid1 == 0) { + sig_pid_radio_reset_monitor[i].pid = 0; + sig_pid_radio_reset_monitor[i].vpid = NULL; + continue; + } + pr_debug("%s: found a pid in slot %d\n",__FUNCTION__,i); + ret = snprintf(buf+count, max, "%lu %d\n", + (unsigned long)pid1, + sig_pid_radio_reset_monitor[i].signal); + if (ret > 0) { + max -= ret; + count += ret; + } + if (max == 0) + break; + if(ret == 0) + break; + } // Loop through all the slots until we are full. + + mutex_unlock(&mts_io_mutex); + + return count; +} + + +/* + * After a radio reset, prime the flag, so if it is set to one + * after this, then we wake the processes waiting on the flag. + * Caller holds the mts_io_mutex lock. + */ +void +reset_radio_udev_discovery(void) +{ + radio_udev_discovery = 0; +} + +int +udev_discovered_radio(void) +{ + return radio_udev_discovery; +} + +ssize_t mts_attr_show_radio_udev_discovery(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%d\n", radio_udev_discovery); +} + + +ssize_t mts_attr_store_radio_udev_discovery(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + int value = -1; + pid_t pid1; + struct pid *vpid0, *vpid1; + int sig, i; + int retval; + + retval = sscanf(buf, "%i", &value); + if (retval != 1) + return -EINVAL; + + if (radio_udev_discovery == -1) { + // Not ready + return -EPROTO; + } + + // Only driver can set this to zero. + if (value == 0) + return -EINVAL; + + mutex_lock(&mts_io_mutex); + if((value == 1) && (radio_udev_discovery == 0)) { + radio_udev_discovery = 1; + pr_debug("%s: mts-io: UDEV discovered cellular modem after radio-reset so signal registered processes", + __FUNCTION__); + // kill all processes that are queued + for (i=0; i < PID_MAX_COUNT; i++) { + pid1 = verify_vpid(sig_pid_radio_reset_monitor + i); + if (pid1 == 0) continue; + sig = sig_pid_radio_reset_monitor[i].signal; + vpid0 = sig_pid_radio_reset_monitor[i].vpid; + mutex_unlock(&mts_io_mutex); + rcu_read_lock(); + vpid1 = find_vpid(pid1); + if (vpid1 == vpid0) { + printk(KERN_ALERT + "mts-io: %s: Sending signal %d to pid %d due to UDEV radio discovery\n", + __FUNCTION__, + sig,pid1); + kill_pid(vpid1,sig,1); + } // vpid is valid, same as registered + else { + printk(KERN_ALERT + "mts-io: %s: mismatched vpid %x/%x\n", __FUNCTION__, (unsigned int)vpid1, (unsigned int) vpid0); + } + + rcu_read_unlock(); + mutex_lock(&mts_io_mutex); + } // Find empty slot + } // udev wants us to wake everybody up after reset + mutex_unlock(&mts_io_mutex); + return count; +} diff --git a/io-module/radio_udev_discovery.h b/io-module/radio_udev_discovery.h new file mode 100644 index 0000000..d735dc1 --- /dev/null +++ b/io-module/radio_udev_discovery.h @@ -0,0 +1,24 @@ +#ifndef IO_MODULE_RADIO_UDEV_DISCOVERY_H_ +#define IO_MODULE_RADIO_UDEV_DISCOVERY_H_ + + +void reset_radio_udev_discovery(void); + +int udev_discovered_radio(void); + +ssize_t mts_attr_show_radio_udev_discovery(struct device *dev, + struct device_attribute *attr, + char *buf); + +ssize_t mts_attr_store_radio_udev_discovery(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count); + +ssize_t mts_attr_show_radio_reset_monitor(struct device *dev, + struct device_attribute *attr, char *buf); + +ssize_t mts_attr_store_radio_reset_monitor(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count); + +#endif /* IO_MODULE_RADIO_UDEV_DISCOVERY_H_ */ + diff --git a/test/resettest.sh b/test/resettest.sh new file mode 100755 index 0000000..b0cb9e1 --- /dev/null +++ b/test/resettest.sh @@ -0,0 +1,46 @@ +#!/bin/bash +# Register for with radio-reset-monitor to +# get a signal when radio-reset occurs. +# Child process exists so the parent +# does not need to worry about resets +# starting before it can get through +# checks, and possibly sleeping forever. +# pgrep was needed to kill the sleep. +# wait is called to wait for the SIGUSR1 signal. +# The child never terminates. +# The hope is that the parent will fall into wait +# before the child registers for the radio-reset. +# checking for do_wait is risky if the kernel ever +# changes. The child will exit if the reset is not +# in process. +# + +USR1=10 +TERM=15 +function sleep_reset +{ + # Wait for parent to enter wait. + trap "kill $!;kill $BASHPID" $TERM + while [[ $(ps -h -o wchan -p $PPID) != do_wait ]] ; do usleep 100 ; done + echo Register parent for SIGUSR1 + echo "$$" "$USR1" >/sys/devices/platform/mts-io/radio-reset-monitor + discovered=$(cat /sys/devices/platform/mts-io/radio-udev-discovery) + if ((discovered == 1)) ; then + # reset is not in progress. + exit 0 + fi + sleep 4294967295 # Hopefully forever + exit 0 +} + +date +trap ":" $USR1 +in_reset=$(cat /sys/devices/platform/mts-io/radio-udev-discovery) +if ((in_reset == 0)) ; then + sleep_reset & + wait $! + # pgrep is needed to find the sleep process + pgrep -P $! | xargs kill +fi +echo Radio Reset is done. +date |