diff options
| -rw-r--r-- | configure.ac | 2 | ||||
| -rw-r--r-- | io-module/adc.c | 126 | ||||
| -rw-r--r-- | io-module/machine/mt100eocg.c | 252 | ||||
| -rw-r--r-- | io-module/mts-io.c | 60 | ||||
| -rw-r--r-- | io-module/mts_io_module.h | 2 | ||||
| -rw-r--r-- | io-module/spi.c | 597 |
6 files changed, 1028 insertions, 11 deletions
diff --git a/configure.ac b/configure.ac index e584de0..fbb7973 100644 --- a/configure.ac +++ b/configure.ac @@ -1,4 +1,4 @@ -AC_INIT([mts-io], [4.3.0]) +AC_INIT([mts-io], [4.3.1]) AC_CONFIG_SRCDIR([util/mts_util_lora2_reset.c]) AM_INIT_AUTOMAKE AM_CONFIG_HEADER([config.h]) diff --git a/io-module/adc.c b/io-module/adc.c new file mode 100644 index 0000000..3d5f3d0 --- /dev/null +++ b/io-module/adc.c @@ -0,0 +1,126 @@ +#define AT91SAM9X5_BASE_ADC 0xf804c000 +#define AT91SAM9260_BASE_ADC 0xfffe0000 + +#define ADC_SHTIME_DEFAULT 0x05 +#define ADC_STARTUP_DEFAULT 0x04 +#define ADC_PRESCALE_DEFAULT 0x3F +#define ADC_MODE_DEFAULT \ + ((ADC_SHTIME_DEFAULT & 0x0F) << 24) | \ + ((ADC_STARTUP_DEFAULT & 0x1F) << 16) | \ + ((ADC_PRESCALE_DEFAULT & 0x3F) << 8) + +#define ADC_CR_OFFSET 0x00 +#define ADC_MR_OFFSET 0x04 +#define ADC_CHER_OFFSET 0x10 +#define ADC_CHDR_OFFSET 0x14 +#define ADC_CHSR_OFFSET 0x18 +#define ADC_SR_OFFSET 0x1C +#define ADC_LDCR_OFFSET 0x20 +#define ADC_IER_OFFSET 0x14 +#define ADC_IDR_OFFSET 0x28 +#define ADC_IMR_OFFSET 0x2C +#define ADC_CDR0_OFFSET 0x30 +#define ADC_CDR1_OFFSET 0x34 +#define ADC_CDR2_OFFSET 0x38 +#define ADC_CDR3_OFFSET 0x3C + +void __iomem *adc_base; +struct clk *adc_clk; + +#define ADC_CONVERT_RESET(base) writel(0x01, (base) + ADC_CR_OFFSET) +#define ADC_CONVERT_START(base) writel(0x02, (base) + ADC_CR_OFFSET) + +static ssize_t mts_attr_show_adc(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int offset; + u32 value; + u32 chan_mask; + + if (!DEVICE_CAPA(id_eeprom.capa, CAPA_ADC)) { + log_debug("ADC not available"); + return -ENODEV; + } + + if (!strcmp(attr->attr.name, "adc0")) { + offset = ADC_CDR0_OFFSET; + chan_mask = 0x01; + } else if (!strcmp(attr->attr.name, "adc1")) { + offset = ADC_CDR1_OFFSET; + chan_mask = 0x02; + } else if (!strcmp(attr->attr.name, "adc2")) { + offset = ADC_CDR2_OFFSET; + chan_mask = 0x04; + } else if (!strcmp(attr->attr.name, "adc3")) { + offset = ADC_CDR3_OFFSET; + chan_mask = 0x08; + } else { + log_notice("adc attr does not exist"); + return -ENOENT; + } + + mutex_lock(&mts_io_mutex); + + // disable all channels and enable the one we want + writel(0x0F, adc_base + ADC_CHDR_OFFSET); + writel(chan_mask, adc_base + ADC_CHER_OFFSET); + + ADC_CONVERT_START(adc_base); + + // wait for conversion to complete (EOC bit set) + value = 0; + while (value != chan_mask) { + value = readl(adc_base + ADC_SR_OFFSET) & chan_mask; + log_debug("ADC_SR EOC [%X]", value); + } + + // read result + value = readl(adc_base + offset); + + mutex_unlock(&mts_io_mutex); + + return sprintf(buf, "%lu\n", (unsigned long) value); +} + +static DEVICE_ATTR_RO_MTS(dev_attr_adc0, "adc0", mts_attr_show_adc); +static DEVICE_ATTR_RO_MTS(dev_attr_adc1, "adc1", mts_attr_show_adc); +static DEVICE_ATTR_RO_MTS(dev_attr_adc2, "adc2", mts_attr_show_adc); +static DEVICE_ATTR_RO_MTS(dev_attr_adc3, "adc3", mts_attr_show_adc); + +static int mts_io_board_adc_probe(struct platform_device *pdev) +{ + int err; + adc_clk = clk_get(&pdev->dev, "adc_clk"); + if (adc_clk) { + err = clk_prepare_enable(adc_clk); + if (err) { + log_error("clock failed to prepare+enable: %d\n", err); + return err; + } + #ifdef CONFIG_SOC_AT91SAM9X5 + adc_base = ioremap(AT91SAM9X5_BASE_ADC, SZ_16K); + #else + adc_base = ioremap(AT91SAM9260_BASE_ADC, SZ_16K); + #endif + if (!adc_base) { + log_error("ioremap failed.\n"); + return -ENOMEM; + } + ADC_CONVERT_RESET(adc_base); + writel(ADC_MODE_DEFAULT, adc_base + ADC_MR_OFFSET); + writel(0x000F0F0F, adc_base + ADC_IDR_OFFSET); + writel(0x0F, adc_base + ADC_CHDR_OFFSET); + } + return 0; +} + +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/mt100eocg.c b/io-module/machine/mt100eocg.c new file mode 100644 index 0000000..c9d2961 --- /dev/null +++ b/io-module/machine/mt100eocg.c @@ -0,0 +1,252 @@ +#include "at91gpio.h" +/* Used for both MT100EOCG 0.0 */ +static struct gpio_pin gpio_pins_mt100eocg_0_0[] = { + { + .name = "ADC0", + .pin = { + .label = "adc0", + .gpio = AT91_PIN_PC0, + .flags = GPIOF_IN, + }, + }, + { + .name = "ADC1", + .pin = { + .label = "adc1", + .gpio = AT91_PIN_PC1, + .flags = GPIOF_IN, + }, + }, + { + .name = "ADC2", + .pin = { + .label = "adc2", + .gpio = AT91_PIN_PC2, + .flags = GPIOF_IN, + }, + }, + { + .name = "ADC3", + .pin = { + .label = "adc3", + .gpio = AT91_PIN_PC3, + .flags = GPIOF_IN, + }, + }, + { + .name = "DTR1", + .pin = { + .label = "extserial-dtr", + .gpio = AT91_PIN_PB18, + .flags = GPIOF_IN, + }, + .active_low = 1, + }, + { + .name = "DCD1", + .pin = { + .label = "extserial-dcd", + .gpio = AT91_PIN_PB3, + .flags = GPIOF_OUT_INIT_HIGH, + }, + .active_low = 1, + }, + { + .name = "ETH_RESET", + .pin = { + .label = "eth-reset", + .gpio = AT91_PIN_PB31, + .flags = GPIOF_OUT_INIT_HIGH, + }, + }, + { + .name = "ENIO", + .pin = { + .label = "enio", + .gpio = AT91_PIN_PC15, + .flags = GPIOF_OUT_INIT_LOW, + }, + }, + { + .name = "DEVICE_RESET", + .pin = { + .label = "reset", + .gpio = AT91_PIN_PA22, + .flags = GPIOF_IN, + }, + .active_low = 1, + }, + { + .name = "RSERSRC", + .pin = { + .label = "rsersrc", + .gpio = AT91_PIN_PC7, + .flags = GPIOF_OUT_INIT_HIGH, + }, + .active_low = 1, + }, + { + .name = "RADIO_RESET", + .pin = { + .label = "radio-reset", + .gpio = AT91_PIN_PB30, + .flags = GPIOF_OUT_INIT_HIGH, + }, + }, + { + .name = "GPIO11", + .pin = { + .label = "gpio11", + .gpio = AT91_PIN_PB19, + .flags = GPIOF_OPEN_DRAIN | GPIOF_INIT_HIGH, + }, + }, + { + .name = "GPIO12", + .pin = { + .label = "gpio12", + .gpio = AT91_PIN_PB20, + .flags = GPIOF_OPEN_DRAIN | GPIOF_INIT_HIGH, + }, + }, + { + .name = "LED2", + .pin = { + .label = "led2", + .gpio = AT91_PIN_PA30, + .flags = GPIOF_OUT_INIT_HIGH, + }, + .active_low = 1, + }, + { + .name = "LED3", + .pin = { + .label = "led3", + .gpio = AT91_PIN_PC9, +#if LED_LS_CONTROLLABLE + .flags = GPIOF_OUT_INIT_HIGH, +#else + .flags = GPIOF_IN, +#endif + }, + .active_low = 1, + }, + /* + { + .name = "TXD1", + .pin = { + .gpio = AT91_PIN_PB17, + .flags = GPIOF_IN, + }, + },*/ + { }, +}; + +/* mt100eocg specific attributes */ +static DEVICE_ATTR_RO_MTS(dev_attr_extserial_dtr, "extserial-dtr", + mts_attr_show_gpio_pin); + +static DEVICE_ATTR_MTS(dev_attr_extserial_dcd_gpio, "extserial-dcd", + mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); + +static DEVICE_ATTR_MTS(dev_attr_eth_reset_mt100, "eth-reset", + mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); + +static DEVICE_ATTR_MTS(dev_attr_enio, "enio", + mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); + +static DEVICE_ATTR_MTS(dev_attr_gpo1, "gpo1", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_gpo2, "gpo2", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_gpo3, "gpo3", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_gpo4, "gpo4", + mts_attr_show_dout, mts_attr_store_dout); + + +static DEVICE_ATTR_MTS(dev_attr_led1, "led1", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_led2, "led2", + mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); + +#if LED_LS_CONTROLLABLE +static DEVICE_ATTR_MTS(dev_attr_led3, "led3", + mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); +#else +static DEVICE_ATTR_RO_MTS(dev_attr_led3, "led3", mts_attr_show_gpio_pin); +#endif + +static DEVICE_ATTR_MTS(dev_attr_led4, "led4", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_led5, "led5", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_led6, "led6", + mts_attr_show_dout, mts_attr_store_dout); + +static DEVICE_ATTR_MTS(dev_attr_gpio11, "gpio11", + mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); +static DEVICE_ATTR_MTS(dev_attr_gpio12, "gpio12", + mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); + +static DEVICE_ATTR_MTS(dev_attr_rsersrc, "rsersrc", + mts_attr_show_gpio_pin, mts_attr_store_gpio_pin); + +static struct attribute *mt100eocg_platform_attributes[] = { + &dev_attr_vendor_id.attr, + &dev_attr_product_id.attr, + &dev_attr_device_id.attr, + &dev_attr_hw_version.attr, + &dev_attr_imei.attr, + &dev_attr_eth_mac.attr, + &dev_attr_has_radio.attr, + &dev_attr_reset.attr, + &dev_attr_reset_monitor.attr, + &dev_attr_reset_monitor_intervals.attr, + &dev_attr_extserial_dtr.attr, + &dev_attr_extserial_dcd_gpio.attr, + &dev_attr_rsersrc.attr, // AT91_PIN_PC7 + &dev_attr_radio_reset.attr, // AT91_PIN_PB30 + &dev_attr_eth_reset_mt100.attr, + &dev_attr_gpio11.attr, // AT91_PIN_PB19 + &dev_attr_gpio12.attr, // AT91_PIN_PB20 + &dev_attr_enio.attr, +// SPI + &dev_attr_gpo1.attr, + &dev_attr_gpo2.attr, + &dev_attr_gpo3.attr, + &dev_attr_gpo4.attr, +// +// SPI + &dev_attr_led1.attr, +// + &dev_attr_led2.attr, // AT91_PIN_PA30 + &dev_attr_led3.attr, // AT91_PIN_PC9 +// SPI + &dev_attr_led4.attr, + &dev_attr_led5.attr, + &dev_attr_led6.attr, +// +// SPI + &dev_attr_gpi5.attr, + &dev_attr_gpi6.attr, + &dev_attr_gpi7.attr, + &dev_attr_gpi8.attr, + &dev_attr_gpi9.attr, + &dev_attr_gpi10.attr, +// +// SPI + &dev_attr_board_temperature.attr, +// +// adc + &dev_attr_adc0.attr, + &dev_attr_adc1.attr, + &dev_attr_adc2.attr, + &dev_attr_adc3.attr, + + NULL, +}; + +static struct attribute_group mt100eocg_platform_attribute_group = { + .attrs = mt100eocg_platform_attributes +}; diff --git a/io-module/mts-io.c b/io-module/mts-io.c index 73d6376..f9ce122 100644 --- a/io-module/mts-io.c +++ b/io-module/mts-io.c @@ -4,6 +4,7 @@ * Copyright (C) 2014 by Multi-Tech Systems * Copyright (C) 2016 by Multi-Tech Systems * Copyright (C) 2019 by Multi-Tech Systems + * Copyright (C) 2020 by Multi-Tech Systems * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -20,7 +21,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ - +#include <linux/clk.h> #include <linux/delay.h> #include <linux/ioctl.h> #include <linux/input.h> @@ -71,6 +72,11 @@ static const struct of_device_id mts_io_dt_ids[] = { }; MODULE_DEVICE_TABLE(of, mts_io_dt_ids); +/* on-board EEPROM */ +static struct mts_id_eeprom_layout id_eeprom; + +#include "adc.c" + /* * We must call platform_set_drvdata, or else the * devres_head for the driver has junk in it, and @@ -83,7 +89,11 @@ MODULE_DEVICE_TABLE(of, mts_io_dt_ids); */ static int mts_io_probe(struct platform_device *pdev) { - return 0; + int ret = 0; + if (!DEVICE_CAPA(id_eeprom.capa, CAPA_ADC)) { + ret = mts_io_board_adc_probe(pdev); + } + return ret; } static int mts_io_remove(struct platform_device *pdev) @@ -104,8 +114,6 @@ static struct platform_driver mts_io_driver = { }; -/* on-board EEPROM */ -static struct mts_id_eeprom_layout id_eeprom; static uint8_t mts_hw_version; struct platform_device *mts_io_platform_device; EXPORT_SYMBOL(mts_io_platform_device); @@ -128,6 +136,8 @@ static time_t time_now_secs(void); /* generic GPIO support */ #include "gpio.c" +#include "spi.c" + /* generic Button support */ //#include "buttons.c" @@ -622,6 +632,7 @@ static int get_radio_model_from_product_id(void) { #include "machine/mtr.c" #include "machine/mths.c" #include "machine/mtcpm.c" +#include "machine/mt100eocg.c" /* include capabilities sub-directory support */ #include "mts_capab.c" @@ -861,11 +872,17 @@ mts_id_eeprom_load(void) log_info("detected board %s", tmp); } else if (strncmp(id_eeprom.hw_version, HW_VERSION_MTCPM_0_0, strlen(HW_VERSION_MTCPM_0_0)) == 0) { - attr_group = &mtcpm_platform_attribute_group; - gpio_pins = gpio_pins_mtcpm; - set_buttons(default_buttons); - mts_hw_version = MTCPM_0_0; - log_info("detected board %s", HW_VERSION_MTCPM_0_0); + attr_group = &mtcpm_platform_attribute_group; + gpio_pins = gpio_pins_mtcpm; + set_buttons(default_buttons); + mts_hw_version = MTCPM_0_0; + log_info("detected board %s", HW_VERSION_MTCPM_0_0); + } else if (strncmp(id_eeprom.product_id, PRODUCT_ID_MT100EOCG, strlen(PRODUCT_ID_MT100EOCG)) == 0) { + attr_group = &mt100eocg_platform_attribute_group; + gpio_pins = gpio_pins_mt100eocg_0_0; + mts_hw_version = MT100EOCG_0_0; + set_buttons(default_buttons); + log_info("detected board %s", HW_VERSION_MT100EOCG_0_0); } else { int i; @@ -1007,6 +1024,23 @@ static int __init mts_io_init(void) return ret; } + if (DEVICE_CAPA(id_eeprom.capa, CAPA_DOUT)) { + ret = spi_register_driver(&mts_spi_dout_driver); + if (ret) { + printk(KERN_ERR "mts-io:mts-io-dout: probe failed: %d\n", ret); + } + } + if (DEVICE_CAPA(id_eeprom.capa, CAPA_DIN)) { + ret = spi_register_driver(&mts_spi_din_driver); + if (ret) { + printk(KERN_ERR "mts-io:mts-io-din: probe failed: %d\n", ret); + } + } + ret = spi_register_driver(&mts_spi_board_temp_driver); + if (ret) { + printk(KERN_ERR "mts-io:mts-io-board-temp: probe failed: %d\n", ret); + } + if (DEVICE_CAPA(id_eeprom.capa, CAPA_LORA) && attr_group_lora) { mts_load_lora_port(); } @@ -1050,6 +1084,14 @@ 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; /* delete radio_reset_timer */ del_timer(&radio_reset_timer); diff --git a/io-module/mts_io_module.h b/io-module/mts_io_module.h index 2d4b8f5..2c5976a 100644 --- a/io-module/mts_io_module.h +++ b/io-module/mts_io_module.h @@ -5,7 +5,7 @@ * MTAC cards. */ -#define DRIVER_VERSION "v4.3.0" +#define DRIVER_VERSION "v4.3.1" #define DRIVER_AUTHOR "Multitech Systems" #define DRIVER_DESC "MTS-IO Controller" #define DRIVER_NAME "mts-io" diff --git a/io-module/spi.c b/io-module/spi.c new file mode 100644 index 0000000..1244cfc --- /dev/null +++ b/io-module/spi.c @@ -0,0 +1,597 @@ +/* SPI devices, functions, and attributes */ + +static int ADT7302_to_celsius(int value) +{ + if (value & 0x2000) { + value = value - 16384; + } + + value = value / 32 + 1 * ((value % 32) >= 16); + + return value; +} + +/* SPI Devices */ +static struct spi_device *spi_sout_dev; +static u8 spi_sout_value; +static DEFINE_MUTEX(spi_sout_mutex); +static unsigned int sout_max_speed_hz = 1 * 1000 * 1000; +module_param(sout_max_speed_hz, uint, S_IRUGO); +MODULE_PARM_DESC( + sout_max_speed_hz, + "Maximum clock rate to be used with this device (default: 1 MHz)" +); + +static struct spi_device *spi_dout_dev; +static u8 spi_dout_value; +static DEFINE_MUTEX(spi_dout_mutex); +static unsigned int dout_max_speed_hz = 1 * 1000 * 1000; +module_param(dout_max_speed_hz, uint, S_IRUGO); +MODULE_PARM_DESC( + dout_max_speed_hz, + "Maximum clock rate to be used with this device (default: 1 MHz)" +); + +static struct spi_device *spi_din_dev; +static unsigned int din_max_speed_hz = 1 * 1000 * 1000; +module_param(din_max_speed_hz, uint, S_IRUGO); +MODULE_PARM_DESC( + din_max_speed_hz, + "Maximum clock rate to be used with this device (default: 1 MHz)" +); + +static struct spi_device *spi_board_temp_dev; +static unsigned int board_temp_max_speed_hz = 1 * 1000 * 1000; +module_param(board_temp_max_speed_hz, uint, S_IRUGO); +MODULE_PARM_DESC( + board_temp_max_speed_hz, + "Maximum clock rate to be used with this device (default: 1 MHz)" +); + +/* Generic SPI functions */ +static inline int spi_writen(struct spi_device *spi, const u8 *buf, size_t len) +{ + int tmp; + u8 *tx; + + tx = kmalloc(len, GFP_KERNEL); + if (!tx) { + return -ENOMEM; + } + + memcpy(tx, buf, len); + tmp = spi_write(spi, tx, len); + + kfree(tx); + + return tmp; +} + +static inline int spi_readn(struct spi_device *spi, u8 *buf, size_t len) +{ + int tmp; + u8 *rx; + + rx = kmalloc(len, GFP_KERNEL); + if (!rx) { + return -ENOMEM; + } + + tmp = spi_read(spi, rx, len); + memcpy(buf, rx, len); + + kfree(rx); + + return tmp; +} + +/* ---------------------------------------------------------------------------- + * + * SPI-based attribute show/store functions + * + * ---------------------------------------------------------------------------- +*/ + +#define SOUT_LED_CD_BIT BIT(0) +#define SOUT_EXTSERIAL_RI_BIT BIT(1) +#define SOUT_EXTSERIAL_DSR_BIT BIT(2) +#define SOUT_LED_DTR BIT(3) +#define SOUT_LED_SIG1_BIT BIT(4) +#define SOUT_LED_SIG2_BIT BIT(5) +#define SOUT_LED_SIG3_BIT BIT(6) +#define SOUT_EXTSERIAL_DCD_BIT BIT(7) + +static ssize_t mts_attr_store_sout(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + int value; + u8 bit; + + if (!spi_sout_dev) { + log_notice("sout device not present"); + return -ENODEV; + } + + if (!strcmp(attr->attr.name, "extserial-ri")) { + bit = SOUT_EXTSERIAL_RI_BIT; + } else if (!strcmp(attr->attr.name, "extserial-dsr")) { + bit = SOUT_EXTSERIAL_DSR_BIT; + } else if (!strcmp(attr->attr.name, "extserial-dcd")) { + bit = SOUT_EXTSERIAL_DCD_BIT; + } else if (!strcmp(attr->attr.name, "led-cd") || + !strcmp(attr->attr.name, "led-sdk-b")) { + bit = SOUT_LED_CD_BIT; + } else if (!strcmp(attr->attr.name, "led-dtr") || + !strcmp(attr->attr.name, "led-sdk-f")) { + bit = SOUT_LED_DTR; + } else if (!strcmp(attr->attr.name, "led-sig1") || + !strcmp(attr->attr.name, "led-sdk-c")) { + bit = SOUT_LED_SIG1_BIT; + } else if (!strcmp(attr->attr.name, "led-sig2") || + !strcmp(attr->attr.name, "led-sdk-d")) { + bit = SOUT_LED_SIG2_BIT; + } else if (!strcmp(attr->attr.name, "led-sig3") || + !strcmp(attr->attr.name, "led-sdk-e")) { + bit = SOUT_LED_SIG3_BIT; + } else { + log_notice("sout attr does not exist"); + return -ENOENT; + } + + if (sscanf(buf, "%i", &value) != 1) { + log_notice("sout attr invalid argument"); + return -EINVAL; + } + + mutex_lock(&spi_sout_mutex); + + if (value) { + spi_sout_value &= ~bit; + } else { + spi_sout_value |= bit; + } + spi_writen(spi_sout_dev, &spi_sout_value, 1); + + mutex_unlock(&spi_sout_mutex); + + return count; +} + +static ssize_t mts_attr_show_sout(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int value; + u8 bit; + + if (!spi_sout_dev) { + log_error("sout device not present"); + return -ENODEV; + } + + if (!strcmp(attr->attr.name, "extserial-ri")) { + bit = SOUT_EXTSERIAL_RI_BIT; + } else if (!strcmp(attr->attr.name, "extserial-dsr")) { + bit = SOUT_EXTSERIAL_DSR_BIT; + } else if (!strcmp(attr->attr.name, "extserial-dcd")) { + bit = SOUT_EXTSERIAL_DCD_BIT; + } else if (!strcmp(attr->attr.name, "led-cd") || + !strcmp(attr->attr.name, "led-sdk-b")) { + bit = SOUT_LED_CD_BIT; + } else if (!strcmp(attr->attr.name, "led-dtr") || + !strcmp(attr->attr.name, "led-sdk-f")) { + bit = SOUT_LED_DTR; + } else if (!strcmp(attr->attr.name, "led-sig1") || + !strcmp(attr->attr.name, "led-sdk-c")) { + bit = SOUT_LED_SIG1_BIT; + } else if (!strcmp(attr->attr.name, "led-sig2") || + !strcmp(attr->attr.name, "led-sdk-d")) { + bit = SOUT_LED_SIG2_BIT; + } else if (!strcmp(attr->attr.name, "led-sig3") || + !strcmp(attr->attr.name, "led-sdk-e")) { + bit = SOUT_LED_SIG3_BIT; + } else { + log_notice("sout attr does not exist"); + return -ENOENT; + } + + mutex_lock(&spi_sout_mutex); + + value = spi_sout_value & bit ? 0 : 1; + + mutex_unlock(&spi_sout_mutex); + + return sprintf(buf, "%d\n", value); +} + +static ssize_t mts_attr_store_dout(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + int value; + u8 bit; + + if (!spi_dout_dev) { + log_notice("dout device not present"); + return -ENODEV; + } + + if ((!strcmp(attr->attr.name, "dout0")) || (!strcmp(attr->attr.name, "gpo1"))) { + bit = BIT(0); + } else if ((!strcmp(attr->attr.name, "dout1")) || (!strcmp(attr->attr.name, "gpo2"))) { + bit = BIT(1); + } else if ((!strcmp(attr->attr.name, "dout2")) || (!strcmp(attr->attr.name, "gpo3"))) { + bit = BIT(2); + } else if ((!strcmp(attr->attr.name, "dout3")) || (!strcmp(attr->attr.name, "gpo4"))) { + bit = BIT(3); + } else if ((!strcmp(attr->attr.name, "dout4")) || (!strcmp(attr->attr.name, "led1"))) { + bit = BIT(4); + } else if ((!strcmp(attr->attr.name, "dout5")) || (!strcmp(attr->attr.name, "led4"))) { + bit = BIT(5); + } else if ((!strcmp(attr->attr.name, "dout6")) || (!strcmp(attr->attr.name, "led5"))) { + bit = BIT(6); + } else if ((!strcmp(attr->attr.name, "dout7")) || (!strcmp(attr->attr.name, "led6"))) { + bit = BIT(7); + } else { + log_notice("dout attr does not exist"); + return -ENOENT; + } + + if (sscanf(buf, "%i", &value) != 1) { + log_notice("dout attr invalid argument"); + return -EINVAL; + } + + mutex_lock(&spi_dout_mutex); + + if (value) { + spi_dout_value &= ~bit; + } else { + spi_dout_value |= bit; + } + + spi_writen(spi_dout_dev, &spi_dout_value, 1); + + mutex_unlock(&spi_dout_mutex); + + return count; +} + +static ssize_t mts_attr_show_dout(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int value; + u8 bit; + + if (!spi_dout_dev) { + log_error("dout device not present"); + return -ENODEV; + } + + if ((!strcmp(attr->attr.name, "dout0")) || (!strcmp(attr->attr.name, "gpo1"))) { + bit = BIT(0); + } else if ((!strcmp(attr->attr.name, "dout1")) || (!strcmp(attr->attr.name, "gpo2"))) { + bit = BIT(1); + } else if ((!strcmp(attr->attr.name, "dout2")) || (!strcmp(attr->attr.name, "gpo3"))) { + bit = BIT(2); + } else if ((!strcmp(attr->attr.name, "dout3")) || (!strcmp(attr->attr.name, "gpo4"))) { + bit = BIT(3); + } else if ((!strcmp(attr->attr.name, "dout4")) || (!strcmp(attr->attr.name, "led1"))) { + bit = BIT(4); + } else if ((!strcmp(attr->attr.name, "dout5")) || (!strcmp(attr->attr.name, "led4"))) { + bit = BIT(5); + } else if ((!strcmp(attr->attr.name, "dout6")) || (!strcmp(attr->attr.name, "led5"))) { + bit = BIT(6); + } else if ((!strcmp(attr->attr.name, "dout7")) || (!strcmp(attr->attr.name, "led6"))) { + bit = BIT(7); + } else { + log_notice("dout attr does not exist"); + return -ENOENT; + } + + mutex_lock(&spi_dout_mutex); + + value = spi_dout_value & bit ? 0 : 1; + + mutex_unlock(&spi_dout_mutex); + + return sprintf(buf, "%d\n", value); +} + +static ssize_t mts_attr_show_din(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int tmp; + u8 bit; + u8 byte; + + if (!spi_din_dev) { + log_error("din device not present"); + return -ENODEV; + } + + if ((!strcmp(attr->attr.name, "din0")) || (!strcmp(attr->attr.name, "gpi5"))) { + bit = BIT(0); + } else if ((!strcmp(attr->attr.name, "din1")) || (!strcmp(attr->attr.name, "gpi6"))) { + bit = BIT(1); + } else if ((!strcmp(attr->attr.name, "din2")) || (!strcmp(attr->attr.name, "gpi7"))) { + bit = BIT(2); + } else if ((!strcmp(attr->attr.name, "din3")) || (!strcmp(attr->attr.name, "gpi8"))) { + bit = BIT(3); + } else if ((!strcmp(attr->attr.name, "din4")) || (!strcmp(attr->attr.name, "gpi9"))) { + bit = BIT(4); + } else if ((!strcmp(attr->attr.name, "din5")) || (!strcmp(attr->attr.name, "gpi10"))) { + bit = BIT(5); + } else if (!strcmp(attr->attr.name, "din6")) { + bit = BIT(6); + } else if (!strcmp(attr->attr.name, "din7")) { + bit = BIT(7); + } else { + log_notice("din attr does not exist"); + return -ENOENT; + } + + tmp = spi_readn(spi_din_dev, &byte, 1); + if (tmp) { + log_error("spi_read failed %d", tmp); + return tmp; + } + + tmp = byte & bit ? 1 : 0; + + return sprintf(buf, "%d\n", tmp); +} + +static ssize_t mts_attr_show_board_temperature(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int tmp; + u16 temp_raw; + + if (!spi_board_temp_dev) { + log_notice("spi_board_temp device not present"); + return -ENODEV; + } + + tmp = spi_readn(spi_board_temp_dev, (u8 *) buf, 2); + if (tmp) { + log_error("spi_readn failed %d", tmp); + return tmp; + } + temp_raw = ((u8 *) buf)[0] << 8 | ((u8 *) buf)[1]; + + log_debug("temp: 0x%04X", temp_raw); + + return sprintf(buf, "%d\n", ADT7302_to_celsius(temp_raw)); +} + +/* ---------------------------------------------------------------------------- + * + * SPI-based attributes + * + * ---------------------------------------------------------------------------- +*/ + +static DEVICE_ATTR_RO_MTS(dev_attr_board_temperature, "board-temperature", + mts_attr_show_board_temperature); + +static DEVICE_ATTR_MTS(dev_attr_extserial_dcd, "extserial-dcd", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_extserial_ri, "extserial-ri", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_extserial_dsr, "extserial-dsr", + mts_attr_show_sout, mts_attr_store_sout); + +static DEVICE_ATTR_MTS(dev_attr_led_cd, "led-cd", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_led_sdk_b, "led-sdk-b", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_led_sig1, "led-sig1", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_led_sdk_c, "led-sdk-c", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_led_sig2, "led-sig2", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_led_sdk_d, "led-sdk-d", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_led_sig3, "led-sig3", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_led_sdk_e, "led-sdk-e", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_led_dtr, "led-dtr", + mts_attr_show_sout, mts_attr_store_sout); +static DEVICE_ATTR_MTS(dev_attr_led_sdk_f, "led-sdk-f", + mts_attr_show_sout, mts_attr_store_sout); + +static DEVICE_ATTR_MTS(dev_attr_dout0, "dout0", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_dout1, "dout1", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_dout2, "dout2", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_dout3, "dout3", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_dout4, "dout4", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_dout5, "dout5", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_dout6, "dout6", + mts_attr_show_dout, mts_attr_store_dout); +static DEVICE_ATTR_MTS(dev_attr_dout7, "dout7", + mts_attr_show_dout, mts_attr_store_dout); + +static DEVICE_ATTR_RO_MTS(dev_attr_din0, "din0", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_din1, "din1", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_din2, "din2", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_din3, "din3", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_din4, "din4", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_din5, "din5", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_din6, "din6", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_din7, "din7", mts_attr_show_din); + +static DEVICE_ATTR_RO_MTS(dev_attr_gpi5, "gpi5", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_gpi6, "gpi6", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_gpi7, "gpi7", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_gpi8, "gpi8", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_gpi9, "gpi9", mts_attr_show_din); +static DEVICE_ATTR_RO_MTS(dev_attr_gpi10, "gpi10", mts_attr_show_din); + +/* SPI driver setup */ +static int mts_spi_sout_probe(struct spi_device *spi) +{ + int tmp; + + spi->max_speed_hz = sout_max_speed_hz; + spi->mode = 0; + + log_debug("sout_max_speed_hz: %d", sout_max_speed_hz); + + tmp = spi_setup(spi); + if (tmp < 0) { + log_error("spi_setup sout failed"); + return tmp; + } + + spi_sout_value = 0xFF; + spi_writen(spi, &spi_sout_value, 1); + + spi_sout_dev = spi; + + return 0; +} + +static int mts_spi_sout_remove(struct spi_device *spi) +{ + spi_sout_dev = NULL; + + return 0; +} + +static struct spi_driver mts_spi_sout_driver = { + .driver = { + .name = "mts-io-sout", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, + + .probe = mts_spi_sout_probe, + .remove = mts_spi_sout_remove, +}; + +static int mts_spi_dout_probe(struct spi_device *spi) +{ + int tmp; + + spi->max_speed_hz = dout_max_speed_hz; + spi->mode = 0; + + log_debug("dout_max_speed_hz: %d", dout_max_speed_hz); + + tmp = spi_setup(spi); + if (tmp < 0) { + log_error("spi_setup dout failed"); + return tmp; + } + + spi_dout_value = 0x00; + spi_writen(spi, &spi_dout_value, 1); + + spi_dout_dev = spi; + + return 0; +} + +static int mts_spi_dout_remove(struct spi_device *spi) +{ + spi_dout_dev = NULL; + + return 0; +} + +static struct spi_driver mts_spi_dout_driver = { + .driver = { + .name = "mts-io-dout", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, + + .probe = mts_spi_dout_probe, + .remove = mts_spi_dout_remove, +}; + +static int mts_spi_din_probe(struct spi_device *spi) +{ + int tmp; + spi->max_speed_hz = din_max_speed_hz; + spi->mode = SPI_CPOL; + + log_debug("din_max_speed_hz: %d", din_max_speed_hz); + + tmp = spi_setup(spi); + if (tmp < 0) { + log_error("spi_setup din failed"); + return tmp; + } + + spi_din_dev = spi; + + return 0; +} + +static int mts_spi_din_remove(struct spi_device *spi) +{ + spi_din_dev = NULL; + + return 0; +} + +static struct spi_driver mts_spi_din_driver = { + .driver = { + .name = "mts-io-din", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, + + .probe = mts_spi_din_probe, + .remove = mts_spi_din_remove, +}; + +static int mts_spi_board_temp_probe(struct spi_device *spi) +{ + int tmp; + + spi->max_speed_hz = board_temp_max_speed_hz; + spi->mode = SPI_CPOL | SPI_CPHA; + + log_debug("board_temp_max_speed_hz: %d", board_temp_max_speed_hz); + + tmp = spi_setup(spi); + if (tmp < 0) { + log_error("spi_setup board-temp failed"); + return tmp; + } + + spi_board_temp_dev = spi; + + return 0; +} + +static int mts_spi_board_temp_remove(struct spi_device *spi) +{ + spi_board_temp_dev = NULL; + + return 0; +} + +static struct spi_driver mts_spi_board_temp_driver = { + .driver = { + .name = "mts-io-board-temp", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, + + .probe = mts_spi_board_temp_probe, + .remove = mts_spi_board_temp_remove, +}; |