diff options
Diffstat (limited to 'io-module/spi.c')
| -rw-r--r-- | io-module/spi.c | 767 |
1 files changed, 0 insertions, 767 deletions
diff --git a/io-module/spi.c b/io-module/spi.c deleted file mode 100644 index ce5c156..0000000 --- a/io-module/spi.c +++ /dev/null @@ -1,767 +0,0 @@ -/* 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_dc_dout_dev; -static u8 spi_dc_dout_value; -static DEFINE_MUTEX(spi_dc_dout_mutex); -static unsigned int dc_dout_max_speed_hz = 1 * 1000 * 1000; -module_param(dc_dout_max_speed_hz, uint, S_IRUGO); -MODULE_PARM_DESC( - dc_dout_max_speed_hz, - "Maximum clock rate to be used with this device (default: 1 MHz)" -); - -static struct spi_device *spi_dc_din_dev; -static unsigned int dc_din_max_speed_hz = 1 * 1000 * 1000; -module_param(dc_din_max_speed_hz, uint, S_IRUGO); -MODULE_PARM_DESC( - dc_din_max_speed_hz, - "Maximum clock rate to be used with this device (default: 1 MHz)" -); - -static struct spi_device *spi_dc_adc_dev; -static unsigned int dc_adc_max_speed_hz = 20 * 1000 * 1000; -module_param(dc_adc_max_speed_hz, uint, S_IRUGO); -MODULE_PARM_DESC( - dc_adc_max_speed_hz, - "Maximum clock rate to be used with this device (default: 20 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; - - if (!DEVICE_CAPA(id_eeprom.capa, CAPA_DOUT)) { - log_debug("digital outputs not available"); - return -ENODEV; - } - - 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; - - if (!DEVICE_CAPA(id_eeprom.capa, CAPA_DIN)) { - log_debug("digital inputs not available"); - return -ENODEV; - } - - 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_dc_dout_probe(struct spi_device *spi) -{ - int tmp; - - if (! has_accessory_card_port_1 || mts_ap1_product_id != MTDC_GPIOB_0_0) { - log_error("accessory card digital outputs not available"); - return -ENODEV; - } - - spi->max_speed_hz = dc_dout_max_speed_hz; - spi->mode = 0; - - log_debug("dc_dout_max_speed_hz: %d", dc_dout_max_speed_hz); - - tmp = spi_setup(spi); - if (tmp < 0) { - log_error("spi_setup dc dout failed"); - return tmp; - } - - spi_dc_dout_value = 0x00; - spi_writen(spi, &spi_dc_dout_value, 1); - - spi_dc_dout_dev = spi; - - return 0; -} - -static int mts_spi_dc_dout_remove(struct spi_device *spi) -{ - spi_dc_dout_dev = NULL; - - return 0; -} - -static struct spi_driver mts_spi_dc_dout_driver = { - .driver = { - .name = "mts-io-dc-dout", - .bus = &spi_bus_type, - .owner = THIS_MODULE, - }, - - .probe = mts_spi_dc_dout_probe, - .remove = mts_spi_dc_dout_remove, -}; - -static int mts_spi_dc_din_probe(struct spi_device *spi) -{ - int tmp; - - if (! has_accessory_card_port_1 || mts_ap1_product_id != MTDC_GPIOB_0_0) { - log_error("accessory card digital inputs not available"); - return -ENODEV; - } - - spi->max_speed_hz = dc_din_max_speed_hz; - spi->mode = SPI_CPOL; - - log_debug("dc_din_max_speed_hz: %d", dc_din_max_speed_hz); - - tmp = spi_setup(spi); - if (tmp < 0) { - log_error("spi_setup accessory card din failed"); - return tmp; - } - - spi_dc_din_dev = spi; - - return 0; -} - -static int mts_spi_dc_din_remove(struct spi_device *spi) -{ - spi_dc_din_dev = NULL; - - return 0; -} - -static struct spi_driver mts_spi_dc_din_driver = { - .driver = { - .name = "mts-io-dc-din", - .bus = &spi_bus_type, - .owner = THIS_MODULE, - }, - - .probe = mts_spi_dc_din_probe, - .remove = mts_spi_dc_din_remove, -}; - -static int mts_spi_dc_adc_probe(struct spi_device *spi) -{ - int tmp; - - if (! has_accessory_card_port_1 || mts_ap1_product_id != MTDC_GPIOB_0_0) { - log_error("accessory card analog to digital not available"); - return -ENODEV; - } - - spi->max_speed_hz = dc_adc_max_speed_hz; - spi->mode = 0; - - log_debug("dc_adc_max_speed_hz: %d", dc_adc_max_speed_hz); - log_debug("dc_adc_mode: %d", spi->mode); - - tmp = spi_setup(spi); - if (tmp < 0) { - log_error("spi_setup accessory card adc failed"); - return tmp; - } - - spi_dc_adc_dev = spi; - - return 0; -} - -static int mts_spi_dc_adc_remove(struct spi_device *spi) -{ - spi_dc_adc_dev = NULL; - - return 0; -} - -static struct spi_driver mts_spi_dc_adc_driver = { - .driver = { - .name = "mts-io-dc-adc", - .bus = &spi_bus_type, - .owner = THIS_MODULE, - }, - - .probe = mts_spi_dc_adc_probe, - .remove = mts_spi_dc_adc_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, -}; 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