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-rw-r--r--io-module/Makefile1
-rw-r--r--io-module/mtac.c22
-rw-r--r--io-module/mtac_gpiob.c552
-rw-r--r--io-module/mtac_mfser.c106
-rw-r--r--io-module/mtr2d2.c7
-rw-r--r--io-module/mts_io.c376
-rw-r--r--io-module/mts_io.h20
-rw-r--r--io-module/spi.c295
8 files changed, 532 insertions, 847 deletions
diff --git a/io-module/Makefile b/io-module/Makefile
index f95a55e..5d036f4 100644
--- a/io-module/Makefile
+++ b/io-module/Makefile
@@ -1,5 +1,4 @@
obj-m := mts_io.o
-CFLAGS_mts_io.o := ${DAUGHTER_CARD}
clean:
rm -f *.ko *.o
diff --git a/io-module/mtac.c b/io-module/mtac.c
new file mode 100644
index 0000000..b9a2520
--- /dev/null
+++ b/io-module/mtac.c
@@ -0,0 +1,22 @@
+static struct kobj_attribute* create_attribute(const char* _name, umode_t _mode) {
+ char* attr_name;
+ struct kobj_attribute* _attr;
+
+ _attr = kzalloc(sizeof(struct kobj_attribute), GFP_KERNEL);
+ if (! _attr) {
+ log_error("kzalloc of attribute %s failed", _name);
+ return NULL;
+ }
+
+ sysfs_attr_init(_attr);
+ attr_name = kstrdup(_name, GFP_KERNEL);
+ if (! attr_name) {
+ log_error("GFP_KERNEL dup failed for attribute [%s]", _name);
+ return NULL;
+ }
+
+ _attr->attr.name = attr_name;
+ _attr->attr.mode = _mode;
+
+ return _attr;
+}
diff --git a/io-module/mtac_gpiob.c b/io-module/mtac_gpiob.c
index 5a592b7..728634d 100644
--- a/io-module/mtac_gpiob.c
+++ b/io-module/mtac_gpiob.c
@@ -1,22 +1,130 @@
+struct spi_device *gpiob_spi[NUM_AP][3];
+struct spi_driver gpiob_spi_drivers[NUM_AP][3];
+
+static u8 spi_ap_dout_value;
+static DEFINE_MUTEX(spi_ap_dout_mutex);
+static unsigned int ap_dout_max_speed_hz = 1 * 1000 * 1000;
+module_param(ap_dout_max_speed_hz, uint, S_IRUGO);
+MODULE_PARM_DESC(
+ ap_dout_max_speed_hz,
+ "Maximum clock rate to be used with this device (default: 1 MHz)"
+);
+
+static unsigned int ap_din_max_speed_hz = 1 * 1000 * 1000;
+module_param(ap_din_max_speed_hz, uint, S_IRUGO);
+MODULE_PARM_DESC(
+ ap_din_max_speed_hz,
+ "Maximum clock rate to be used with this device (default: 1 MHz)"
+);
+
+static unsigned int ap_adc_max_speed_hz = 20 * 1000 * 1000;
+module_param(ap_adc_max_speed_hz, uint, S_IRUGO);
+MODULE_PARM_DESC(
+ ap_adc_max_speed_hz,
+ "Maximum clock rate to be used with this device (default: 20 MHz)"
+);
+
+static bool gpiob_get_dev_info_from_modalias(const char* modalias, int* port, char* buf) {
+ sscanf(modalias, "mts-io-ap%d-%s", port, buf);
+
+ return true;
+}
+
+static int mts_spi_ap_probe(struct spi_device *spi)
+{
+ int tmp;
+ int port;
+ int port_index;
+ char buf[16];
+ enum spi_devices dev;
+
+ gpiob_get_dev_info_from_modalias(spi->modalias, &port, buf);
+ port_index = port - 1;
+ if (port < 1 || port > NUM_AP) {
+ log_error("port [%d] is invalid", port);
+ return -ENODEV;
+ }
+
+ if (strstr(buf, "dout")) {
+ dev = dout;
+ spi->max_speed_hz = ap_dout_max_speed_hz;
+ spi->mode = 0;
+ } else if (strstr(buf, "din")) {
+ dev = din;
+ spi->max_speed_hz = ap_din_max_speed_hz;
+ spi->mode = SPI_CPOL;
+ } else if (strstr(buf, "adc")) {
+ dev = adc;
+ spi->max_speed_hz = ap_adc_max_speed_hz;
+ spi->mode = 0;
+ } else {
+ log_error("unknown gpiob spi device type [%s]", buf);
+ return -ENODEV;
+ }
+
+ gpiob_spi[port_index][dev] = spi;
+
+ tmp = spi_setup(gpiob_spi[port_index][dev]);
+ if (tmp < 0) {
+ log_error("spi_setup ap %d %s failed", port, buf);
+ return tmp;
+ }
+
+ if (dev == dout) {
+ spi_ap_dout_value = 0x00;
+ spi_writen(gpiob_spi[port_index][dev], &spi_ap_dout_value, 1);
+ }
+
+ return 0;
+}
+
+static int mts_spi_ap_remove(struct spi_device *spi)
+{
+ int port;
+ int port_index;
+ char buf[16];
+
+ gpiob_get_dev_info_from_modalias(spi->modalias, &port, buf);
+ port_index = port - 1;
+ if (port < 1 || port > NUM_AP) {
+ log_error("port [%d] is invalid", port);
+ return -ENODEV;
+ }
+
+ if (strstr(buf, "dout")) {
+ gpiob_spi[port_index][dout] = NULL;
+ } else if (strstr(buf, "din")) {
+ gpiob_spi[port_index][din] = NULL;
+ } else if (strstr(buf, "adc")) {
+ gpiob_spi[port_index][adc] = NULL;
+ } else {
+ log_error("unknown gpiob spi device type [%s]", buf);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+// Is there a way to make this dynamic as well?
struct gpio_pin *ap_gpio_pin_by_attr_name(const char *name) {
struct gpio_pin *pin;
char *pin_attr_name;
- if (!strcmp(name, "ap1-led1")) {
+ if (!strcmp(name, "ap-led1:1")) {
pin_attr_name = "ap1-gpio3";
- } else if (!strcmp(name, "ap1-led2")) {
+ } else if (!strcmp(name, "ap-led2:1")) {
pin_attr_name = "ap1-gpio4";
- } else if (!strcmp(name, "ap1-dout-enable")) {
+ } else if (!strcmp(name, "ap-dout-enable:1")) {
pin_attr_name = "ap1-gpio1";
- } else if (!strcmp(name, "ap1-reset")) {
+ } else if (!strcmp(name, "ap-reset:1")) {
pin_attr_name = "ap1-reset";
- } else if (!strcmp(name, "ap2-led1")) {
+ } else if (!strcmp(name, "ap-led1:2")) {
pin_attr_name = "ap2-gpio3";
- } else if (!strcmp(name, "ap2-led2")) {
+ } else if (!strcmp(name, "ap-led2:2")) {
pin_attr_name = "ap2-gpio4";
- } else if (!strcmp(name, "ap2-dout-enable")) {
+ } else if (!strcmp(name, "ap-dout-enable:2")) {
pin_attr_name = "ap2-gpio1";
- } else if (!strcmp(name, "ap2-reset")) {
+ } else if (!strcmp(name, "ap-reset:2")) {
pin_attr_name = "ap2-reset";
} else {
log_error("accessory card attribute %s not available", name);
@@ -35,8 +143,8 @@ struct gpio_pin *ap_gpio_pin_by_attr_name(const char *name) {
}
-static ssize_t mts_attr_show_ap_gpio_pin(struct device *dev,
- struct device_attribute *attr,
+static ssize_t mts_attr_show_ap_gpio_pin(struct kobject *kobj,
+ struct kobj_attribute *attr,
char *buf)
{
int value;
@@ -63,8 +171,8 @@ static ssize_t mts_attr_show_ap_gpio_pin(struct device *dev,
return sprintf(buf, "%d\n", value);
}
-static ssize_t mts_attr_store_ap_gpio_pin(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t mts_attr_store_ap_gpio_pin(struct kobject *kobj,
+ struct kobj_attribute *attr, const char *buf, size_t count)
{
int value;
struct gpio_pin *pin = ap_gpio_pin_by_attr_name(attr->attr.name);
@@ -90,46 +198,29 @@ static ssize_t mts_attr_store_ap_gpio_pin(struct device *dev,
return count;
}
-static ssize_t mts_attr_show_ap_din(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t mts_attr_show_ap_din(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
int tmp;
+ int channel;
+ int port;
+ int port_index;
u8 bit;
u8 byte;
- struct spi_device* spi_dev;
- if (strstr(attr->attr.name, ":0")) {
- if (!spi_ap1_din_dev) {
- log_error("accessory card 1 din device not present");
- return -ENODEV;
- }
-
- spi_dev = spi_ap1_din_dev;
- } else if (strstr(attr->attr.name, ":1")) {
- if (!spi_ap2_din_dev) {
- log_error("accessory card 2 din device not present");
- return -ENODEV;
- }
-
- spi_dev = spi_ap2_din_dev;
- } else {
- log_error("unknown din device %s", attr->attr.name);
- return -ENODEV;
+ sscanf(attr->attr.name, "din%d:%d", &channel, &port);
+ port_index = port - 1;
+ if (channel < 0 || channel > 3) {
+ log_error("channel [%d] is invalid", channel);
+ return -ENOENT;
}
-
- if (strstr(attr->attr.name, "din0")) {
- bit = BIT(0);
- } else if (strstr(attr->attr.name, "din1")) {
- bit = BIT(1);
- } else if (strstr(attr->attr.name, "din2")) {
- bit = BIT(2);
- } else if (strstr(attr->attr.name, "din3")) {
- bit = BIT(3);
- } else {
- log_error("accessory card din attr does not exist");
+ if (port < 1 || port > NUM_AP) {
+ log_error("port [%d] is invalid", port);
return -ENOENT;
}
- tmp = spi_readn(spi_dev, &byte, 1);
+ bit = BIT(channel);
+
+ tmp = spi_readn(gpiob_spi[port_index][din], &byte, 1);
if (tmp) {
log_error("spi_read failed %d", tmp);
return tmp;
@@ -140,46 +231,29 @@ static ssize_t mts_attr_show_ap_din(struct device *dev, struct device_attribute
return sprintf(buf, "%d\n", tmp);
}
-static ssize_t mts_attr_store_ap_dout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t mts_attr_store_ap_dout(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count)
{
int value;
+ int channel;
+ int port;
+ int port_index;
u8 bit;
- struct spi_device* spi_dev;
-
- if (strstr(attr->attr.name, ":0")) {
- if (!spi_ap1_dout_dev) {
- log_error("accessory card 1 dout device not present");
- return -ENODEV;
- }
- spi_dev = spi_ap1_dout_dev;
- } else if (strstr(attr->attr.name, ":1")) {
- if (!spi_ap2_dout_dev) {
- log_error("accessory card 2 dout device not present");
- return -ENODEV;
- }
-
- spi_dev = spi_ap2_dout_dev;
- } else {
- log_error("unknown dout device %s", attr->attr.name);
- return -ENODEV;
+ sscanf(attr->attr.name, "dout%d:%d", &channel, &port);
+ port_index = port - 1;
+ if (channel < 0 || channel > 3) {
+ log_error("channel [%d] is invalid", channel);
+ return -ENOENT;
}
-
- if (strstr(attr->attr.name, "dout0")) {
- bit = BIT(0);
- } else if (strstr(attr->attr.name, "dout1")) {
- bit = BIT(1);
- } else if (strstr(attr->attr.name, "dout2")) {
- bit = BIT(2);
- } else if (strstr(attr->attr.name, "dout3")) {
- bit = BIT(3);
- } else {
- log_error("accessory card dout attr does not exist");
+ if (port < 1 || port > NUM_AP) {
+ log_error("port [%d] is invalid", port);
return -ENOENT;
}
+ bit = BIT(channel);
+
if (sscanf(buf, "%i", &value) != 1) {
- log_error("accessory card dout attr invalid argument");
+ log_error("accessory card dout attr invalid argument [%d]", value);
return -EINVAL;
}
@@ -191,51 +265,32 @@ static ssize_t mts_attr_store_ap_dout(struct device *dev, struct device_attribut
spi_ap_dout_value |= bit;
}
- spi_writen(spi_dev, &spi_ap_dout_value, 1);
+ spi_writen(gpiob_spi[port_index][dout], &spi_ap_dout_value, 1);
mutex_unlock(&spi_ap_dout_mutex);
return count;
}
-static ssize_t mts_attr_show_ap_dout(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t mts_attr_show_ap_dout(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
int value;
+ int channel;
+ int port;
u8 bit;
- struct spi_device* spi_dev;
- if (strstr(attr->attr.name, ":0")) {
- if (!spi_ap1_dout_dev) {
- log_error("accessory card 1 dout device not present");
- return -ENODEV;
- }
-
- spi_dev = spi_ap1_dout_dev;
- } else if (strstr(attr->attr.name, ":1")) {
- if (!spi_ap2_dout_dev) {
- log_error("accessory card 2 dout device not present");
- return -ENODEV;
- }
-
- spi_dev = spi_ap2_dout_dev;
- } else {
- log_error("unknown dout device %s", attr->attr.name);
- return -ENODEV;
+ sscanf(attr->attr.name, "dout%d:%d", &channel, &port);
+ if (channel < 0 || channel > 3) {
+ log_error("channel [%d] is invalid", channel);
+ return -ENOENT;
}
-
- if (strstr(attr->attr.name, "dout0")) {
- bit = BIT(0);
- } else if (strstr(attr->attr.name, "dout1")) {
- bit = BIT(1);
- } else if (strstr(attr->attr.name, "dout2")) {
- bit = BIT(2);
- } else if (strstr(attr->attr.name, "dout3")) {
- bit = BIT(3);
- } else {
- log_error("accessory card dout attr does not exist");
+ if (port < 1 || port > NUM_AP) {
+ log_error("port [%d] is invalid", port);
return -ENOENT;
}
+ bit = BIT(channel);
+
mutex_lock(&spi_ap_dout_mutex);
value = spi_ap_dout_value & bit ? 0 : 1;
@@ -245,48 +300,30 @@ static ssize_t mts_attr_show_ap_dout(struct device *dev, struct device_attribute
return sprintf(buf, "%d\n", value);
}
-static ssize_t mts_attr_show_ap_adc(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t mts_attr_show_ap_adc(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
{
int tmp;
int tx_data;
int rx_data;
int channel;
+ int port;
+ int port_index;
int channel_mask = 0x0180; /* 0b 0000 0001 1000 0000 */
int manual_mode = 0x1840; /* 0b 0001 1000 0100 0000 */
uint8_t tx[2];
uint8_t rx[2];
- struct spi_device* spi_dev;
memset(tx, 0, sizeof(tx));
memset(rx, 0, sizeof(rx));
- if (strstr(attr->attr.name, ":0")) {
- if (!spi_ap1_adc_dev) {
- log_error("accessory card 1 adc device not present");
- return -ENODEV;
- }
-
- spi_dev = spi_ap1_adc_dev;
- } else if (strstr(attr->attr.name, ":1")) {
- if (!spi_ap2_adc_dev) {
- log_error("accessory card 2 adc device not present");
- return -ENODEV;
- }
-
- spi_dev = spi_ap2_adc_dev;
- } else {
- log_error("unknown adc device %s", attr->attr.name);
- return -ENODEV;
+ sscanf(attr->attr.name, "adc%d:%d", &channel, &port);
+ port_index = port - 1;
+ if (channel < 0 || channel > 2) {
+ log_error("channel [%d] is invalid", channel);
+ return -ENOENT;
}
-
- if (strstr(attr->attr.name, "adc0")) {
- channel = 0;
- } else if (strstr(attr->attr.name, "adc1")) {
- channel = 1;
- } else if (strstr(attr->attr.name, "adc2")) {
- channel = 2;
- } else {
- log_error("accessory card adc attr does not exist");
+ if (port < 1 || port > NUM_AP) {
+ log_error("port [%d] is invalid", port);
return -ENOENT;
}
@@ -294,7 +331,7 @@ static ssize_t mts_attr_show_ap_adc(struct device *dev, struct device_attribute
tx_data = manual_mode | ((channel << 7) & channel_mask);
tx[0] = tx_data >> 8;
tx[1] = tx_data & 0xFF;
- tmp = spi_writen(spi_dev, tx, 2);
+ tmp = spi_writen(gpiob_spi[port_index][adc], tx, 2);
if (tmp) {
log_error("spi_write failed %d", tmp);
return tmp;
@@ -305,14 +342,14 @@ static ssize_t mts_attr_show_ap_adc(struct device *dev, struct device_attribute
* the ADC just needs the clock running so it can convert */
tx[0] = 0;
tx[1] = 0;
- tmp = spi_writen(spi_dev, tx, 2);
+ tmp = spi_writen(gpiob_spi[port_index][adc], tx, 2);
if (tmp) {
log_error("2nd spi_write failed %d", tmp);
return tmp;
}
/* 3rd transfer to read data */
- tmp = spi_readn(spi_dev, rx, 2);
+ tmp = spi_readn(gpiob_spi[port_index][adc], rx, 2);
if (tmp) {
log_error("spi_read failed %d", tmp);
return tmp;
@@ -322,88 +359,165 @@ static ssize_t mts_attr_show_ap_adc(struct device *dev, struct device_attribute
return sprintf(buf, "%lu\n", (unsigned long) rx_data);
}
-/* accessory port 1 gpiob attributes */
-static DEVICE_ATTR_RO_MTS(dev_attr_ap1_gpio_din0, "din0:0", mts_attr_show_ap_din);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap1_gpio_din1, "din1:0", mts_attr_show_ap_din);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap1_gpio_din2, "din2:0", mts_attr_show_ap_din);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap1_gpio_din3, "din3:0", mts_attr_show_ap_din);
-static DEVICE_ATTR_MTS(dev_attr_ap1_gpio_dout0, "dout0:0", mts_attr_show_ap_dout, mts_attr_store_ap_dout);
-static DEVICE_ATTR_MTS(dev_attr_ap1_gpio_dout1, "dout1:0", mts_attr_show_ap_dout, mts_attr_store_ap_dout);
-static DEVICE_ATTR_MTS(dev_attr_ap1_gpio_dout2, "dout2:0", mts_attr_show_ap_dout, mts_attr_store_ap_dout);
-static DEVICE_ATTR_MTS(dev_attr_ap1_gpio_dout3, "dout3:0", mts_attr_show_ap_dout, mts_attr_store_ap_dout);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap1_gpio_adc0, "adc0:0", mts_attr_show_ap_adc);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap1_gpio_adc1, "adc1:0", mts_attr_show_ap_adc);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap1_gpio_adc2, "adc2:0", mts_attr_show_ap_adc);
-static DEVICE_ATTR_MTS(dev_attr_ap1_gpio_led1, "ap1-led1", mts_attr_show_ap_gpio_pin, mts_attr_store_ap_gpio_pin);
-static DEVICE_ATTR_MTS(dev_attr_ap1_gpio_led2, "ap1-led2", mts_attr_show_ap_gpio_pin, mts_attr_store_ap_gpio_pin);
-static DEVICE_ATTR_MTS(dev_attr_ap1_gpio_oe, "ap1-dout-enable", mts_attr_show_ap_gpio_pin, mts_attr_store_ap_gpio_pin);
-static DEVICE_ATTR_MTS(dev_attr_ap1_reset, "ap1-reset", mts_attr_show_ap_gpio_pin, mts_attr_store_ap_gpio_pin);
-
-static int ap1_gpio_attributes_size = 15; // not including NULL at end
-
-static struct attribute *ap1_gpio_attributes[] = {
- &dev_attr_ap1_reset.attr,
-
- &dev_attr_ap1_gpio_oe.attr, // gpio1
- &dev_attr_ap1_gpio_led1.attr, // gpio3
- &dev_attr_ap1_gpio_led2.attr, // gpio4
-
- &dev_attr_ap1_gpio_din0.attr,
- &dev_attr_ap1_gpio_din1.attr,
- &dev_attr_ap1_gpio_din2.attr,
- &dev_attr_ap1_gpio_din3.attr,
-
- &dev_attr_ap1_gpio_dout0.attr,
- &dev_attr_ap1_gpio_dout1.attr,
- &dev_attr_ap1_gpio_dout2.attr,
- &dev_attr_ap1_gpio_dout3.attr,
-
- &dev_attr_ap1_gpio_adc0.attr,
- &dev_attr_ap1_gpio_adc1.attr,
- &dev_attr_ap1_gpio_adc2.attr,
-
- NULL,
-};
+static bool gpiob_spi_driver_setup(struct spi_driver *driver, const char *driver_name) {
+ char* name = kstrdup(driver_name, GFP_KERNEL);
+ if (! name) {
+ log_error("GFP_KERNEL dup failed for driver [%s]", driver_name);
+ return false;
+ }
+ driver->driver.name = name;
+ driver->driver.bus = &spi_bus_type;
+ driver->driver.owner = THIS_MODULE;
+ driver->probe = mts_spi_ap_probe;
+ driver->remove = mts_spi_ap_remove;
+
+ return true;
+}
+
+// 4 digital inputs
+// 4 digital outputs
+// 3 analog to digital
+// 2 LEDs
+// 1 digital out enable
+// 1 reset
+static int ap_gpiob_attrs_size = 15;
+
+static bool gpiob_setup(enum ap port) {
+ int i;
+ int port_index = port - 1;
+ struct kobj_attribute *attr;
+ char buf[32];
+
+ log_info("loading GPIOB accessory card in port %d", port);
+
+ if (device_attrs_size + ap_gpiob_attrs_size >= device_attrs_max_size) {
+ log_error("can't load GPIOB accessory card in port %d - not enough room for attributes", port);
+ return false;
+ }
+
+ // add digital inputs
+ for (i = 0; i < 4; i++) {
+ sprintf(buf, "din%d:%d", i, port);
+ attr = create_attribute(buf, MTS_ATTR_MODE_RO);
+ if (! attr) {
+ log_error("failed to create attribute[%s]", buf);
+ return false;
+ }
+ attr->show = mts_attr_show_ap_din;
+ device_attrs[device_attrs_size++] = &attr->attr;
+ }
+
+ // add digital outputs
+ for (i = 0; i < 4; i++) {
+ sprintf(buf, "dout%d:%d", i, port);
+ attr = create_attribute(buf, MTS_ATTR_MODE_RW);
+ if (! attr) {
+ log_error("failed to create attribute[%s]", buf);
+ return false;
+ }
+ attr->show = mts_attr_show_ap_dout;
+ attr->store = mts_attr_store_ap_dout;
+ device_attrs[device_attrs_size++] = &attr->attr;
+ }
+
+ // add analog to digital
+ for (i = 0; i < 3; i++) {
+ sprintf(buf, "adc%d:%d", i, port);
+ attr = create_attribute(buf, MTS_ATTR_MODE_RO);
+ if (! attr) {
+ log_error("failed to create attribute[%s]", buf);
+ return false;
+ }
+ attr->show = mts_attr_show_ap_adc;
+ device_attrs[device_attrs_size++] = &attr->attr;
+ }
+
+ // add LEDs
+ for (i = 1; i <= 2; i++) {
+ sprintf(buf, "ap-led%d:%d", i, port);
+ attr = create_attribute(buf, MTS_ATTR_MODE_RW);
+ if (! attr) {
+ log_error("failed to create attribute[%s]", buf);
+ return false;
+ }
+ attr->show = mts_attr_show_ap_gpio_pin;
+ attr->store = mts_attr_store_ap_gpio_pin;
+ device_attrs[device_attrs_size++] = &attr->attr;
+ }
+
+ // misc attributes
+ sprintf(buf, "ap-dout-enable:%d", port);
+ attr = create_attribute(buf, MTS_ATTR_MODE_RW);
+ if (! attr) {
+ log_error("failed to create attribute[%s]", buf);
+ return false;
+ }
+ attr->show = mts_attr_show_ap_gpio_pin;
+ attr->store = mts_attr_store_ap_gpio_pin;
+ device_attrs[device_attrs_size++] = &attr->attr;
+
+ sprintf(buf, "ap-reset:%d", port);
+ attr = create_attribute(buf, MTS_ATTR_MODE_RW);
+ if (! attr) {
+ log_error("failed to create attribute[%s]", buf);
+ return false;
+ }
+ attr->show = mts_attr_show_ap_gpio_pin;
+ attr->store = mts_attr_store_ap_gpio_pin;
+ device_attrs[device_attrs_size++] = &attr->attr;
+
+ // setup and register drivers
+ log_debug("registering accessory card %d dout driver", port);
+ sprintf(buf, "mts-io-ap%d-dout", port);
+ if (! gpiob_spi_driver_setup(&gpiob_spi_drivers[port_index][dout], buf)) {
+ log_error("failed to set up spi driver [%s]", buf);
+ return false;
+ }
+ if (spi_register_driver(&gpiob_spi_drivers[port_index][dout])) {
+ log_error("failed to register accessory card %d dout driver", port);
+ spi_unregister_driver(&gpiob_spi_drivers[port_index][dout]);
+ return false;
+ }
+
+ log_debug("registering accessory card %d din driver", port);
+ sprintf(buf, "mts-io-ap%d-din", port);
+ if (! gpiob_spi_driver_setup(&gpiob_spi_drivers[port_index][din], buf)) {
+ log_error("failed to set up spi driver [%s]", buf);
+ return false;
+ }
+ if (spi_register_driver(&gpiob_spi_drivers[port_index][din])) {
+ log_error("failed to register accessory card %d din driver", port);
+ spi_unregister_driver(&gpiob_spi_drivers[port_index][din]);
+ return false;
+ }
+
+ log_debug("registering accessory card %d adc driver", port);
+ sprintf(buf, "mts-io-ap%d-adc", port);
+ if (! gpiob_spi_driver_setup(&gpiob_spi_drivers[port_index][adc], buf)) {
+ log_error("failed to set up spi driver [%s]", buf);
+ return false;
+ }
+ if (spi_register_driver(&gpiob_spi_drivers[port_index][adc])) {
+ log_error("failed to register accessory card %d adc driver", port);
+ spi_unregister_driver(&gpiob_spi_drivers[port_index][adc]);
+ return false;
+ }
+ return true;
+}
+
+static bool gpiob_teardown(enum ap port) {
+ int port_index = port - 1;
+
+ // do we need to clean up allocated memory here as well?
+ log_info("unloading GPIOB accessory card in port %d", port);
+ spi_unregister_driver(&gpiob_spi_drivers[port_index][dout]);
+ spi_unregister_driver(&gpiob_spi_drivers[port_index][din]);
+ spi_unregister_driver(&gpiob_spi_drivers[port_index][adc]);
+ return true;
+}
-/* accessory port 2 gpiob attributes */
-static DEVICE_ATTR_RO_MTS(dev_attr_ap2_gpio_din0, "din0:1", mts_attr_show_ap_din);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap2_gpio_din1, "din1:1", mts_attr_show_ap_din);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap2_gpio_din2, "din2:1", mts_attr_show_ap_din);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap2_gpio_din3, "din3:1", mts_attr_show_ap_din);
-static DEVICE_ATTR_MTS(dev_attr_ap2_gpio_dout0, "dout0:1", mts_attr_show_ap_dout, mts_attr_store_ap_dout);
-static DEVICE_ATTR_MTS(dev_attr_ap2_gpio_dout1, "dout1:1", mts_attr_show_ap_dout, mts_attr_store_ap_dout);
-static DEVICE_ATTR_MTS(dev_attr_ap2_gpio_dout2, "dout2:1", mts_attr_show_ap_dout, mts_attr_store_ap_dout);
-static DEVICE_ATTR_MTS(dev_attr_ap2_gpio_dout3, "dout3:1", mts_attr_show_ap_dout, mts_attr_store_ap_dout);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap2_gpio_adc0, "adc0:1", mts_attr_show_ap_adc);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap2_gpio_adc1, "adc1:1", mts_attr_show_ap_adc);
-static DEVICE_ATTR_RO_MTS(dev_attr_ap2_gpio_adc2, "adc2:1", mts_attr_show_ap_adc);
-static DEVICE_ATTR_MTS(dev_attr_ap2_gpio_led1, "ap2-led1", mts_attr_show_ap_gpio_pin, mts_attr_store_ap_gpio_pin);
-static DEVICE_ATTR_MTS(dev_attr_ap2_gpio_led2, "ap2-led2", mts_attr_show_ap_gpio_pin, mts_attr_store_ap_gpio_pin);
-static DEVICE_ATTR_MTS(dev_attr_ap2_gpio_oe, "ap2-dout-enable", mts_attr_show_ap_gpio_pin, mts_attr_store_ap_gpio_pin);
-static DEVICE_ATTR_MTS(dev_attr_ap2_reset, "ap2-reset", mts_attr_show_ap_gpio_pin, mts_attr_store_ap_gpio_pin);
-
-static int ap2_gpio_attributes_size = 15; // not including NULL at end
-
-static struct attribute *ap2_gpio_attributes[] = {
- &dev_attr_ap2_reset.attr,
-
- &dev_attr_ap2_gpio_oe.attr, // gpio1
- &dev_attr_ap2_gpio_led1.attr, // gpio3
- &dev_attr_ap2_gpio_led2.attr, // gpio4
-
- &dev_attr_ap2_gpio_din0.attr,
- &dev_attr_ap2_gpio_din1.attr,
- &dev_attr_ap2_gpio_din2.attr,
- &dev_attr_ap2_gpio_din3.attr,
-
- &dev_attr_ap2_gpio_dout0.attr,
- &dev_attr_ap2_gpio_dout1.attr,
- &dev_attr_ap2_gpio_dout2.attr,
- &dev_attr_ap2_gpio_dout3.attr,
-
- &dev_attr_ap2_gpio_adc0.attr,
- &dev_attr_ap2_gpio_adc1.attr,
- &dev_attr_ap2_gpio_adc2.attr,
-
- NULL,
+static struct ap_info gpiob_info = {
+ .product_id = MTAC_GPIOB_0_0,
+ .setup = &gpiob_setup,
+ .teardown = &gpiob_teardown
};
diff --git a/io-module/mtac_mfser.c b/io-module/mtac_mfser.c
index 14eddd1..5871bfe 100644
--- a/io-module/mtac_mfser.c
+++ b/io-module/mtac_mfser.c
@@ -2,13 +2,13 @@ struct gpio_pin *ap_mfser_pin_by_attr_name(const char *name) {
struct gpio_pin *pin;
char *pin_attr_name;
- if (!strcmp(name, "rs4xx-term-res:0")) {
+ if (!strcmp(name, "rs4xx-term-res:1")) {
pin_attr_name = "ap1-gpio3";
- } else if (!strcmp(name, "rts-override:0")) {
+ } else if (!strcmp(name, "rts-override:1")) {
pin_attr_name = "ap1-gpio4";
- } else if (!strcmp(name, "rs4xx-term-res:1")) {
+ } else if (!strcmp(name, "rs4xx-term-res:2")) {
pin_attr_name = "ap2-gpio3";
- } else if (!strcmp(name, "rts-override:1")) {
+ } else if (!strcmp(name, "rts-override:2")) {
pin_attr_name = "ap2-gpio4";
} else {
log_error("accessory card attribute %s not available", name);
@@ -27,8 +27,8 @@ struct gpio_pin *ap_mfser_pin_by_attr_name(const char *name) {
}
-static ssize_t mts_attr_show_ap_mfser_pin(struct device *dev,
- struct device_attribute *attr,
+static ssize_t mts_attr_show_ap_mfser_pin(struct kobject *kobj,
+ struct kobj_attribute *attr,
char *buf)
{
int value;
@@ -55,8 +55,8 @@ static ssize_t mts_attr_show_ap_mfser_pin(struct device *dev,
return sprintf(buf, "%d\n", value);
}
-static ssize_t mts_attr_store_ap_mfser_pin(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t mts_attr_store_ap_mfser_pin(struct kobject *kobj,
+ struct kobj_attribute *attr, const char *buf, size_t count)
{
int value;
struct gpio_pin *pin = ap_mfser_pin_by_attr_name(attr->attr.name);
@@ -82,8 +82,8 @@ static ssize_t mts_attr_store_ap_mfser_pin(struct device *dev,
return count;
}
-static ssize_t mts_attr_show_mfser_mode(struct device *dev,
- struct device_attribute *attr,
+static ssize_t mts_attr_show_mfser_mode(struct kobject *kobj,
+ struct kobj_attribute *attr,
char *buf)
{
int ret;
@@ -93,11 +93,11 @@ static ssize_t mts_attr_show_mfser_mode(struct device *dev,
struct gpio_pin *pin_modesel0;
struct gpio_pin *pin_modesel1;
- if (strstr(attr->attr.name, ":0")) {
+ if (strstr(attr->attr.name, ":1")) {
pin_modesel0 = gpio_pin_by_name("AP1_GPIO1");
pin_modesel1 = gpio_pin_by_name("AP1_GPIO2");
}
- else if (strstr(attr->attr.name, ":1")) {
+ else if (strstr(attr->attr.name, ":2")) {
pin_modesel0 = gpio_pin_by_name("AP2_GPIO1");
pin_modesel1 = gpio_pin_by_name("AP2_GPIO2");
}
@@ -130,19 +130,19 @@ static ssize_t mts_attr_show_mfser_mode(struct device *dev,
return ret;
}
-static ssize_t mts_attr_store_mfser_mode(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t mts_attr_store_mfser_mode(struct kobject *kobj,
+ struct kobj_attribute *attr, const char *buf, size_t count)
{
int modesel0;
int modesel1;
struct gpio_pin *pin_modesel0;
struct gpio_pin *pin_modesel1;
- if (strstr(attr->attr.name, ":0")) {
+ if (strstr(attr->attr.name, ":1")) {
pin_modesel0 = gpio_pin_by_name("AP1_GPIO1");
pin_modesel1 = gpio_pin_by_name("AP1_GPIO2");
}
- else if (strstr(attr->attr.name, ":1")) {
+ else if (strstr(attr->attr.name, ":2")) {
pin_modesel0 = gpio_pin_by_name("AP2_GPIO1");
pin_modesel1 = gpio_pin_by_name("AP2_GPIO2");
}
@@ -184,32 +184,62 @@ static ssize_t mts_attr_store_mfser_mode(struct device *dev,
return count;
}
-/* accessory port 1 serial attributes */
-static DEVICE_ATTR_MTS(dev_attr_ap1_serial_mode, "serial-mode:0", mts_attr_show_mfser_mode, mts_attr_store_mfser_mode);
-static DEVICE_ATTR_MTS(dev_attr_ap1_rs4xx_term_res, "rs4xx-term-res:0", mts_attr_show_ap_mfser_pin, mts_attr_store_ap_mfser_pin);
-static DEVICE_ATTR_MTS(dev_attr_ap1_rts_override, "rts-override:0", mts_attr_show_ap_mfser_pin, mts_attr_store_ap_mfser_pin);
+// 1 serial mode
+// 1 rs4xx term resistor
+// 1 rts override
+static int ap_mfser_attrs_size = 3;
-static int ap1_mfser_attributes_size = 3; // not including NULL at end
+static bool mfser_setup(enum ap port) {
+ struct kobj_attribute *attr;
+ char buf[32];
-static struct attribute *ap1_mfser_attributes[] = {
- &dev_attr_ap1_serial_mode.attr,
- &dev_attr_ap1_rs4xx_term_res.attr, // gpio3
- &dev_attr_ap1_rts_override.attr, // gpio4
- NULL,
-};
+ log_info("loading MFSER accessory card in port %d", port);
-/* accessory port 2 serial attributes */
-static DEVICE_ATTR_MTS(dev_attr_ap2_serial_mode, "serial-mode:1", mts_attr_show_mfser_mode, mts_attr_store_mfser_mode);
-static DEVICE_ATTR_MTS(dev_attr_ap2_rs4xx_term_res, "rs4xx-term-res:1", mts_attr_show_ap_mfser_pin, mts_attr_store_ap_mfser_pin);
-static DEVICE_ATTR_MTS(dev_attr_ap2_rts_override, "rts-override:1", mts_attr_show_ap_mfser_pin, mts_attr_store_ap_mfser_pin);
+ if (device_attrs_size + ap_mfser_attrs_size >= device_attrs_max_size) {
+ log_error("can't load MFSER accessory card in port %d - not enough room for attributes", port);
+ return false;
+ }
-static int ap2_mfser_attributes_size = 3; // not including NULL at end
+ sprintf(buf, "serial-mode:%d", port);
+ attr = create_attribute(buf, MTS_ATTR_MODE_RW);
+ if (! attr) {
+ log_error("failed to create attribute[%s]", buf);
+ return false;
+ }
+ attr->show = mts_attr_show_mfser_mode;
+ attr->store = mts_attr_store_mfser_mode;
+ device_attrs[device_attrs_size++] = &attr->attr;
-static struct attribute *ap2_mfser_attributes[] = {
- &dev_attr_ap2_serial_mode.attr,
- &dev_attr_ap2_rs4xx_term_res.attr, // gpio3
- &dev_attr_ap2_rts_override.attr, // gpio4
- NULL,
-};
+ sprintf(buf, "rs4xx-term-res:%d", port);
+ attr = create_attribute(buf, MTS_ATTR_MODE_RW);
+ if (! attr) {
+ log_error("failed to create attribute[%s]", buf);
+ return false;
+ }
+ attr->show = mts_attr_show_ap_mfser_pin;
+ attr->store = mts_attr_store_ap_mfser_pin;
+ device_attrs[device_attrs_size++] = &attr->attr;
+ sprintf(buf, "rts-override:%d", port);
+ attr = create_attribute(buf, MTS_ATTR_MODE_RW);
+ if (! attr) {
+ log_error("failed to create attribute[%s]", buf);
+ return false;
+ }
+ attr->show = mts_attr_show_ap_mfser_pin;
+ attr->store = mts_attr_store_ap_mfser_pin;
+ device_attrs[device_attrs_size++] = &attr->attr;
+
+ return true;
+}
+static bool mfser_teardown(enum ap port) {
+ log_info("unloading MFSER accessory card in port %d", port);
+ return true;
+}
+
+static struct ap_info mfser_info = {
+ .product_id = MTAC_MFSER_0_0,
+ .setup = &mfser_setup,
+ .teardown = &mfser_teardown
+};
diff --git a/io-module/mtr2d2.c b/io-module/mtr2d2.c
index 0926952..24a99f3 100644
--- a/io-module/mtr2d2.c
+++ b/io-module/mtr2d2.c
@@ -1,4 +1,3 @@
-
static struct gpio_pin gpio_pins_mtr2d2_0_0[] = {
{
.name = "RADIO_RESET",
@@ -266,7 +265,8 @@ static struct gpio_pin gpio_pins_mtr2d2_0_0[] = {
{ },
};
-static int mtr2d2_platform_attributes_size = 64; // not including NULL at end
+static int mtr2d2_platform_attributes_max_size = 64; // including NULL at end
+static int mtr2d2_platform_attributes_size = 21;
static struct attribute *mtr2d2_platform_attributes[] = {
&dev_attr_vendor_id.attr,
@@ -295,6 +295,8 @@ static struct attribute *mtr2d2_platform_attributes[] = {
&dev_attr_board_temperature.attr,
/* extra space for the accessory card attributes */
+ NULL, // index 21
+ NULL, // index 22
NULL, // index 23
NULL, // index 24
NULL, // index 25
@@ -336,7 +338,6 @@ static struct attribute *mtr2d2_platform_attributes[] = {
NULL, // index 61
NULL, // index 62
NULL, // index 63
- NULL, // index 64
NULL,
};
diff --git a/io-module/mts_io.c b/io-module/mts_io.c
index 9adfd12..936d0d2 100644
--- a/io-module/mts_io.c
+++ b/io-module/mts_io.c
@@ -59,24 +59,33 @@
extern uint8_t mts_id_eeprom[512];
static struct mts_id_eeprom_layout id_eeprom;
-/* accessory card EEPROMs */
-#ifdef MTOCGD2
-extern uint8_t mts_ap1_eeprom[512];
-extern uint8_t mts_ap2_eeprom[512];
+// NUM_AP should be defined from the board code
+// it should be set to the value of CONFIG_MTS_NUM_ACCESSORY_PORTS
+// arch/arm/mach-at91/board-dt-sam9.c
+// if it is 0 or undefined, there is no accessory card support on this HW
+#ifdef CONFIG_MTS_NUM_ACCESSORY_PORTS
+
+#ifndef NUM_AP
+#define NUM_AP CONFIG_MTS_NUM_ACCESSORY_PORTS
+#endif
+
#else
-uint8_t mts_ap1_eeprom[512] = {};
-uint8_t mts_ap2_eeprom[512] = {};
+#define NUM_AP 0
#endif
-static struct mts_ap_eeprom_layout ap1_eeprom;
-static struct mts_ap_eeprom_layout ap2_eeprom;
-bool accessory_card_capable = false;
-bool have_accessory_card_slot_1 = false;
-bool have_accessory_card_slot_2 = false;
+#if NUM_AP > 0
+/* accessory card EEPROMs */
+extern uint8_t mts_ap_eeprom[NUM_AP][512];
+static struct mts_ap_eeprom_layout ap_eeprom[NUM_AP];
+#endif
+
+static struct ap_info* port_info[NUM_AP];
+
+static struct attribute **device_attrs;
+static size_t device_attrs_size;
+static size_t device_attrs_max_size;
static uint8_t mts_product_id;
-static uint8_t mts_ap1_product_id;
-static uint8_t mts_ap2_product_id;
static uint8_t has_spi_sout;
static uint8_t has_spi_din;
static uint8_t has_spi_dout;
@@ -98,6 +107,7 @@ static DEFINE_MUTEX(mts_io_mutex);
#include "spi.c"
/* accessory card support */
+#include "mtac.c"
#include "mtac_gpiob.c"
#include "mtac_mfser.c"
@@ -415,131 +425,57 @@ static DEVICE_ATTR_RO_MTS(dev_attr_eth_mac, "mac-eth",
#include "mt100eocg.c"
*/
-static bool add_accessory_card_attributes(int slot)
-{
- size_t device_attrs_size;
- size_t card_attrs_size;
- size_t attrs_index;
- size_t i;
-
- struct attribute **device_attrs;
- struct attribute **card_attrs;
-
- switch (mts_product_id) {
- case MTR2D2_0_0:
- device_attrs_size = mtr2d2_platform_attributes_size;
- device_attrs = mtr2d2_platform_attributes;
- break;
- default:
- log_error("accessory cards aren't supported for platform %s", id_eeprom.hw_version);
- return false;
- }
+static bool load_port(int port) {
+ int port_index = port - 1;
+ memcpy(&ap_eeprom[port_index], mts_ap_eeprom[port_index], sizeof(mts_ap_eeprom[port_index]));
- if (slot == 1) {
- switch (mts_ap1_product_id) {
- case MTAC_GPIOB_0_0:
- card_attrs_size = ap1_gpio_attributes_size;
- card_attrs = ap1_gpio_attributes;
- break;
- case MTAC_MFSER_0_0:
- card_attrs_size = ap1_mfser_attributes_size;
- card_attrs = ap1_mfser_attributes;
- break;
- default:
- log_error("accessory card %s isn't supported", ap1_eeprom.hw_version);
- return false;
- }
- } else if (slot == 2) {
- switch (mts_ap2_product_id) {
- case MTAC_GPIOB_0_0:
- card_attrs_size = ap2_gpio_attributes_size;
- card_attrs = ap2_gpio_attributes;
- break;
- case MTAC_MFSER_0_0:
- card_attrs_size = ap2_mfser_attributes_size;
- card_attrs = ap2_mfser_attributes;
- break;
- default:
- log_error("accessory card %s isn't supported", ap2_eeprom.hw_version);
- return false;
- }
+ if (mts_ap_eeprom[port_index][0] == 0xFF) {
+ log_error("uninitialized eeprom on accessory card %d", port);
+ } else if (mts_ap_eeprom[port_index][0] == 0x00) {
+ log_info("no accessory card inserted in port %d", port);
} else {
- log_error("%d is an invalid slot value", slot);
- return false;
- }
-
- for (attrs_index = 0; attrs_index < device_attrs_size; attrs_index++) {
- if (! device_attrs[attrs_index]) {
- break;
+ if (strstr(ap_eeprom[port_index].product_id, PRODUCT_ID_MTAC_GPIOB)) {
+ port_info[port_index] = &gpiob_info;
+ } else if (strstr(ap_eeprom[port_index].product_id, PRODUCT_ID_MTAC_MFSER)) {
+ port_info[port_index] = &mfser_info;
+ } else {
+ log_error("unknown accessory card [%s] in port %d", ap_eeprom[port_index].product_id, port);
+ return false;
}
- }
- if (device_attrs_size < attrs_index + card_attrs_size) {
- log_error("not enough room for accessory card attributes!");
- return false;
- }
+ log_info("accessory card %d vendor-id: %.32s", port, ap_eeprom[port_index].vendor_id);
+ log_info("accessory card %d product-id: %.32s", port, ap_eeprom[port_index].product_id);
+ log_info("accessory card %d device-id: %.32s", port, ap_eeprom[port_index].device_id);
+ log_info("accessory card %d hw-version: %.32s", port, ap_eeprom[port_index].hw_version);
+ if (strncmp(ap_eeprom[port_index].product_id, PRODUCT_ID_MTAC_ETH, strlen(PRODUCT_ID_MTAC_ETH)) == 0) {
+ log_info("accessory card %d mac-addr: %02X:%02X:%02X:%02X:%02X:%02X",
+ port,
+ ap_eeprom[port_index].mac_addr[0],
+ ap_eeprom[port_index].mac_addr[1],
+ ap_eeprom[port_index].mac_addr[2],
+ ap_eeprom[port_index].mac_addr[3],
+ ap_eeprom[port_index].mac_addr[4],
+ ap_eeprom[port_index].mac_addr[5]);
+ }
- for (i = 0; i < card_attrs_size; i++) {
- device_attrs[attrs_index + i] = card_attrs[i];
+ if (! port_info[port_index]->setup(port)) {
+ log_error("accessory port %d setup failed", port);
+ port_info[port_index]->teardown(port);
+ return false;
+ }
}
return true;
}
-static bool mts_ap_eeprom_load(void)
+static void init_accessory_ports(void)
{
- // Accessory Card Slot 1
- memcpy(&ap1_eeprom, mts_ap1_eeprom, sizeof(mts_ap1_eeprom));
-
- if (mts_ap1_eeprom[0] == 0xFF) {
- log_error("uninitialized eeprom on accessory card 1");
- } else if (mts_ap1_eeprom[0] == 0x00) {
- log_info("no accessory card inserted in slot 1");
- } else {
- have_accessory_card_slot_1 = true;
-
- log_info("accessory card 1 vendor-id: %.32s", ap1_eeprom.vendor_id);
- log_info("accessory card 1 product-id: %.32s", ap1_eeprom.product_id);
- log_info("accessory card 1 device-id: %.32s", ap1_eeprom.device_id);
- log_info("accessory card 1 hw-version: %.32s", ap1_eeprom.hw_version);
- if (strncmp(ap1_eeprom.product_id, PRODUCT_ID_MTAC_ETH, strlen(PRODUCT_ID_MTAC_ETH)) == 0) {
- log_info("accessory card 1 mac-addr: %02X:%02X:%02X:%02X:%02X:%02X",
- ap1_eeprom.mac_addr[0],
- ap1_eeprom.mac_addr[1],
- ap1_eeprom.mac_addr[2],
- ap1_eeprom.mac_addr[3],
- ap1_eeprom.mac_addr[4],
- ap1_eeprom.mac_addr[5]);
- }
- }
-
- // Accessory Card Slot 2
- memcpy(&ap2_eeprom, mts_ap2_eeprom, sizeof(mts_ap2_eeprom));
-
- if (mts_ap2_eeprom[0] == 0xFF) {
- log_error("uninitialized eeprom on accessory card 2");
- } else if (mts_ap2_eeprom[0] == 0x00) {
- log_info("no accessory card inserted in slot 2");
- } else {
- have_accessory_card_slot_2 = true;
-
- log_info("accessory card 2 vendor-id: %.32s", ap2_eeprom.vendor_id);
- log_info("accessory card 2 product-id: %.32s", ap2_eeprom.product_id);
- log_info("accessory card 2 device-id: %.32s", ap2_eeprom.device_id);
- log_info("accessory card 2 hw-version: %.32s", ap2_eeprom.hw_version);
- if (strncmp(ap2_eeprom.product_id, PRODUCT_ID_MTAC_ETH, strlen(PRODUCT_ID_MTAC_ETH)) == 0) {
- log_info("accessory card 2 mac-addr: %02X:%02X:%02X:%02X:%02X:%02X",
- ap2_eeprom.mac_addr[0],
- ap2_eeprom.mac_addr[1],
- ap2_eeprom.mac_addr[2],
- ap2_eeprom.mac_addr[3],
- ap2_eeprom.mac_addr[4],
- ap2_eeprom.mac_addr[5]);
+ int i;
+ for (i = 1; i <= NUM_AP; i++) {
+ if (! load_port(i)) {
+ log_error("failed to load accessory card in port %d", i);
}
}
-
- // if either slot has a valid card, return true
- return (have_accessory_card_slot_1 || have_accessory_card_slot_2);
}
static int mts_id_eeprom_load(void)
@@ -581,7 +517,6 @@ static int mts_id_eeprom_load(void)
attr_group = &mtr2_platform_attribute_group;
gpio_pins = gpio_pins_mtr2_0_0;
mts_product_id = MTR2_0_0;
- accessory_card_capable = true;
has_spi_sout = 0;
has_spi_din = 0;
has_spi_dout = 0;
@@ -611,7 +546,6 @@ static int mts_id_eeprom_load(void)
attr_group = &mtr2_platform_attribute_group;
gpio_pins = gpio_pins_mtr2_0_0;
mts_product_id = MTOCGD2_0_0;
- accessory_card_capable = true;
has_spi_sout = 0;
has_spi_din = 0;
has_spi_dout = 0;
@@ -637,10 +571,15 @@ static int mts_id_eeprom_load(void)
has_spi_temp = 0;
log_info("detected board %s", HW_VERSION_MTOCGD_0_1);
} else if (strncmp(id_eeprom.hw_version, HW_VERSION_MTR2D2_0_0, strlen(HW_VERSION_MTR2D2_0_0)) == 0) {
+ // need to put any accessory card attributes into this list so they show up in sysfs
+ // the port_info->setup callback does this
+ device_attrs = mtr2d2_platform_attributes;
+ device_attrs_size = mtr2d2_platform_attributes_size;
+ device_attrs_max_size = mtr2d2_platform_attributes_max_size;
+
attr_group = &mtr2d2_platform_attribute_group;
gpio_pins = gpio_pins_mtr2d2_0_0;
mts_product_id = MTR2D2_0_0;
- accessory_card_capable = true;
has_spi_sout = 0;
has_spi_din = 0;
has_spi_dout = 0;
@@ -706,6 +645,7 @@ static int __init mts_io_init(void)
int ret;
size_t device_attributes_size;
size_t card_attributes_size;
+ int i;
log_info("init: " DRIVER_VERSION);
@@ -714,118 +654,11 @@ static int __init mts_io_init(void)
goto error1;
}
- if (accessory_card_capable) {
- mts_ap1_product_id = MTAC_NONE;
- mts_ap2_product_id = MTAC_NONE;
- if (mts_ap_eeprom_load()) {
- // handle both slots, but do slot 1 first
- // probably need special handling if both cards are the same type
- if (have_accessory_card_slot_1) {
- // more elegant way to handle this?
- if (strstr(ap1_eeprom.product_id, PRODUCT_ID_MTAC_GPIOB)) {
- mts_ap1_product_id = MTAC_GPIOB_0_0;
- }
- else if (strstr(ap1_eeprom.product_id, PRODUCT_ID_MTAC_MFSER)) {
- mts_ap1_product_id = MTAC_MFSER_0_0;
- }
-
- switch(mts_ap1_product_id) {
- case MTAC_GPIOB_0_0:
- log_info("loading GPIO accessory card in slot 1");
- if (! add_accessory_card_attributes(1)) {
- log_error("failed to load GPIO accessory card in slot 1");
- } else {
- log_info("successfully loaded GPIO accessory card in slot 1");
- }
- log_debug("registering accessory card 1 dout driver");
- ret = spi_register_driver(&mts_spi_ap1_dout_driver);
- if (ret) {
- log_error("failed to register accessory card 1 dout driver");
- spi_unregister_driver(&mts_spi_ap1_dout_driver);
- goto error1;
- }
- log_debug("registering accessory card 1 din driver");
- ret = spi_register_driver(&mts_spi_ap1_din_driver);
- if (ret) {
- log_error("failed to register accessory card 1 din driver");
- spi_unregister_driver(&mts_spi_ap1_din_driver);
- goto error1;
- }
- log_debug("registering accessory card 1 adc driver");
- ret = spi_register_driver(&mts_spi_ap1_adc_driver);
- if (ret) {
- log_error("failed to register accessory card 1 adc driver");
- spi_unregister_driver(&mts_spi_ap1_adc_driver);
- goto error1;
- }
- break;
- case MTAC_MFSER_0_0:
- log_info("loading MFSER accessory card in slot 1");
- if (! add_accessory_card_attributes(1)) {
- log_error("failed to load MFSER accessory card in slot 1");
- } else {
- log_info("successfully loaded MFSER accessory card in slot 1");
- }
- break;
-
- default:
- log_error("accessory card %s unsupported", ap1_eeprom.product_id);
- }
- }
-
- if (have_accessory_card_slot_2) {
- // more elegant way to handle this?
- if (strstr(ap2_eeprom.product_id, PRODUCT_ID_MTAC_GPIOB)) {
- mts_ap2_product_id = MTAC_GPIOB_0_0;
- }
- else if (strstr(ap2_eeprom.product_id, PRODUCT_ID_MTAC_MFSER)) {
- mts_ap2_product_id = MTAC_MFSER_0_0;
- }
-
- switch(mts_ap2_product_id) {
- case MTAC_GPIOB_0_0:
- log_info("loading GPIO accessory card in slot 2");
- if (! add_accessory_card_attributes(2)) {
- log_error("failed to load GPIO accessory card in slot 2");
- } else {
- log_info("successfully loaded GPIO accessory card in slot 2");
- }
- log_debug("registering accessory card 2 dout driver");
- ret = spi_register_driver(&mts_spi_ap2_dout_driver);
- if (ret) {
- log_error("failed to register accessory card 2 dout driver");
- spi_unregister_driver(&mts_spi_ap2_dout_driver);
- goto error1;
- }
- log_debug("registering accessory card 2 din driver");
- ret = spi_register_driver(&mts_spi_ap2_din_driver);
- if (ret) {
- log_error("failed to register accessory card 2 din driver");
- spi_unregister_driver(&mts_spi_ap2_din_driver);
- goto error1;
- }
- log_debug("registering accessory card 2 adc driver");
- ret = spi_register_driver(&mts_spi_ap2_adc_driver);
- if (ret) {
- log_error("failed to register accessory card 2 adc driver");
- spi_unregister_driver(&mts_spi_ap2_adc_driver);
- goto error1;
- }
- break;
- case MTAC_MFSER_0_0:
- log_info("loading MFSER accessory card in slot 2");
- if (! add_accessory_card_attributes(2)) {
- log_error("failed to load MFSER accessory card in slot 2");
- } else {
- log_info("successfully loaded MFSER accessory card in slot 2");
- }
- break;
-
- default:
- log_error("accessory card %s unsupported", ap1_eeprom.product_id);
- }
- }
+ if (NUM_AP) {
+ for (i = 0; i < NUM_AP; i++) {
+ port_info[i] = NULL;
}
+ init_accessory_ports();
}
mts_io_platform_device = platform_device_alloc(PLATFORM_NAME, -1);
@@ -950,40 +783,21 @@ error3:
platform_device_del(mts_io_platform_device);
error2:
platform_device_put(mts_io_platform_device);
-
- if (have_accessory_card_slot_1) {
- switch (mts_ap1_product_id) {
- case MTAC_GPIOB_0_0:
- spi_unregister_driver(&mts_spi_ap1_dout_driver);
- spi_unregister_driver(&mts_spi_ap1_din_driver);
- spi_unregister_driver(&mts_spi_ap1_adc_driver);
- break;
-
- default:
- break;
- }
- }
-
- if (have_accessory_card_slot_2) {
- switch (mts_ap2_product_id) {
- case MTAC_GPIOB_0_0:
- spi_unregister_driver(&mts_spi_ap2_dout_driver);
- spi_unregister_driver(&mts_spi_ap2_din_driver);
- spi_unregister_driver(&mts_spi_ap2_adc_driver);
- break;
-
- default:
- break;
- }
- }
error1:
log_error("init failed: %d", ret);
+ for (i = 0; i < NUM_AP; i++) {
+ if (port_info[i]) {
+ port_info[i]->teardown(i);
+ }
+ }
return ret;
}
static void __exit mts_io_exit(void)
{
+ int i;
+
if ( mts_product_id != MT100EOCG_0_0 ) {
cancel_delayed_work_sync(&reset_work);
}
@@ -1004,38 +818,18 @@ static void __exit mts_io_exit(void)
if (has_spi_sout)
spi_unregister_driver(&mts_spi_sout_driver);
- if (have_accessory_card_slot_1) {
- switch (mts_ap1_product_id) {
- case MTAC_GPIOB_0_0:
- spi_unregister_driver(&mts_spi_ap1_dout_driver);
- spi_unregister_driver(&mts_spi_ap1_din_driver);
- spi_unregister_driver(&mts_spi_ap1_adc_driver);
- break;
-
- default:
- break;
- }
- }
-
- if (have_accessory_card_slot_2) {
- switch (mts_ap2_product_id) {
- case MTAC_GPIOB_0_0:
- spi_unregister_driver(&mts_spi_ap2_dout_driver);
- spi_unregister_driver(&mts_spi_ap2_din_driver);
- spi_unregister_driver(&mts_spi_ap2_adc_driver);
- break;
-
- default:
- break;
- }
- }
-
sysfs_remove_group(&mts_io_platform_device->dev.kobj, attr_group);
sysfs_remove_link(&mts_io_platform_device->dev.parent->kobj, "mtcdp");
platform_device_unregister(mts_io_platform_device);
+ for (i = 0; i < NUM_AP; i++) {
+ if (port_info[i]) {
+ port_info[i]->teardown(i);
+ }
+ }
+
log_info("exiting");
}
diff --git a/io-module/mts_io.h b/io-module/mts_io.h
index b91423e..ac39463 100644
--- a/io-module/mts_io.h
+++ b/io-module/mts_io.h
@@ -102,5 +102,25 @@ enum {
LED_FLASHING,
};
+enum ap {
+ port_1 = 1,
+ port_2,
+};
+
+enum spi_devices {
+ din = 0,
+ dout = 1,
+ adc = 2,
+};
+
+// info for accessory port
+// contains function pointers for setup and teardown and useful info
+// each type of accessory card should have one of these
+struct ap_info {
+ uint8_t product_id;
+ bool (*setup)(enum ap port);
+ bool (*teardown)(enum ap port);
+};
+
#endif /* ~__MTS_IO_H */
diff --git a/io-module/spi.c b/io-module/spi.c
index e652b90..210371c 100644
--- a/io-module/spi.c
+++ b/io-module/spi.c
@@ -40,35 +40,6 @@ MODULE_PARM_DESC(
"Maximum clock rate to be used with this device (default: 1 MHz)"
);
-static struct spi_device *spi_ap1_dout_dev;
-static struct spi_device *spi_ap2_dout_dev;
-static u8 spi_ap_dout_value;
-static DEFINE_MUTEX(spi_ap_dout_mutex);
-static unsigned int ap_dout_max_speed_hz = 1 * 1000 * 1000;
-module_param(ap_dout_max_speed_hz, uint, S_IRUGO);
-MODULE_PARM_DESC(
- ap_dout_max_speed_hz,
- "Maximum clock rate to be used with this device (default: 1 MHz)"
-);
-
-static struct spi_device *spi_ap1_din_dev;
-static struct spi_device *spi_ap2_din_dev;
-static unsigned int ap_din_max_speed_hz = 1 * 1000 * 1000;
-module_param(ap_din_max_speed_hz, uint, S_IRUGO);
-MODULE_PARM_DESC(
- ap_din_max_speed_hz,
- "Maximum clock rate to be used with this device (default: 1 MHz)"
-);
-
-static struct spi_device *spi_ap1_adc_dev;
-static struct spi_device *spi_ap2_adc_dev;
-static unsigned int ap_adc_max_speed_hz = 20 * 1000 * 1000;
-module_param(ap_adc_max_speed_hz, uint, S_IRUGO);
-MODULE_PARM_DESC(
- ap_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);
@@ -598,272 +569,6 @@ static struct spi_driver mts_spi_din_driver = {
.remove = mts_spi_din_remove,
};
-static int mts_spi_ap1_dout_probe(struct spi_device *spi)
-{
- int tmp;
-
- if (! have_accessory_card_slot_1 || mts_ap1_product_id != MTAC_GPIOB_0_0) {
- log_error("accessory card 1 digital outputs not available");
- return -ENODEV;
- }
-
- spi->max_speed_hz = ap_dout_max_speed_hz;
- spi->mode = 0;
-
- log_debug("ap1_dout_max_speed_hz: %d", ap_dout_max_speed_hz);
-
- tmp = spi_setup(spi);
- if (tmp < 0) {
- log_error("spi_setup accessory card 1 dout failed");
- return tmp;
- }
-
- spi_ap_dout_value = 0x00;
- spi_writen(spi, &spi_ap_dout_value, 1);
-
- spi_ap1_dout_dev = spi;
-
- return 0;
-}
-
-static int mts_spi_ap1_dout_remove(struct spi_device *spi)
-{
- spi_ap1_dout_dev = NULL;
-
- return 0;
-}
-
-static struct spi_driver mts_spi_ap1_dout_driver = {
- .driver = {
- .name = "mts-io-ap1-dout",
- .bus = &spi_bus_type,
- .owner = THIS_MODULE,
- },
-
- .probe = mts_spi_ap1_dout_probe,
- .remove = mts_spi_ap1_dout_remove,
-};
-
-static int mts_spi_ap1_din_probe(struct spi_device *spi)
-{
- int tmp;
-
- if (! have_accessory_card_slot_1 || mts_ap1_product_id != MTAC_GPIOB_0_0) {
- log_error("accessory card 1 digital inputs not available");
- return -ENODEV;
- }
-
- spi->max_speed_hz = ap_din_max_speed_hz;
- spi->mode = SPI_CPOL;
-
- log_debug("ap1_din_max_speed_hz: %d", ap_din_max_speed_hz);
-
- tmp = spi_setup(spi);
- if (tmp < 0) {
- log_error("spi_setup accessory card 1 din failed");
- return tmp;
- }
-
- spi_ap1_din_dev = spi;
-
- return 0;
-}
-
-static int mts_spi_ap1_din_remove(struct spi_device *spi)
-{
- spi_ap1_din_dev = NULL;
-
- return 0;
-}
-
-static struct spi_driver mts_spi_ap1_din_driver = {
- .driver = {
- .name = "mts-io-ap1-din",
- .bus = &spi_bus_type,
- .owner = THIS_MODULE,
- },
-
- .probe = mts_spi_ap1_din_probe,
- .remove = mts_spi_ap1_din_remove,
-};
-
-static int mts_spi_ap1_adc_probe(struct spi_device *spi)
-{
- int tmp;
-
- if (! have_accessory_card_slot_1 || mts_ap1_product_id != MTAC_GPIOB_0_0) {
- log_error("accessory card 1 analog to digital not available");
- return -ENODEV;
- }
-
- spi->max_speed_hz = ap_adc_max_speed_hz;
- spi->mode = 0;
-
- log_debug("ap1_adc_max_speed_hz: %d", ap_adc_max_speed_hz);
- log_debug("ap1_adc_mode: %d", spi->mode);
-
- tmp = spi_setup(spi);
- if (tmp < 0) {
- log_error("spi_setup accessory card 1 adc failed");
- return tmp;
- }
-
- spi_ap1_adc_dev = spi;
-
- return 0;
-}
-
-static int mts_spi_ap1_adc_remove(struct spi_device *spi)
-{
- spi_ap1_adc_dev = NULL;
-
- return 0;
-}
-
-static struct spi_driver mts_spi_ap1_adc_driver = {
- .driver = {
- .name = "mts-io-ap1-adc",
- .bus = &spi_bus_type,
- .owner = THIS_MODULE,
- },
-
- .probe = mts_spi_ap1_adc_probe,
- .remove = mts_spi_ap1_adc_remove,
-};
-
-static int mts_spi_ap2_dout_probe(struct spi_device *spi)
-{
- int tmp;
-
- if (! have_accessory_card_slot_2 || mts_ap2_product_id != MTAC_GPIOB_0_0) {
- log_error("accessory card 2 digital outputs not available");
- return -ENODEV;
- }
-
- spi->max_speed_hz = ap_dout_max_speed_hz;
- spi->mode = 0;
-
- log_debug("ap2_dout_max_speed_hz: %d", ap_dout_max_speed_hz);
-
- tmp = spi_setup(spi);
- if (tmp < 0) {
- log_error("spi_setup accessory card 2 dout failed");
- return tmp;
- }
-
- spi_ap_dout_value = 0x00;
- spi_writen(spi, &spi_ap_dout_value, 2);
-
- spi_ap2_dout_dev = spi;
-
- return 0;
-}
-
-static int mts_spi_ap2_dout_remove(struct spi_device *spi)
-{
- spi_ap2_dout_dev = NULL;
-
- return 0;
-}
-
-static struct spi_driver mts_spi_ap2_dout_driver = {
- .driver = {
- .name = "mts-io-ap2-dout",
- .bus = &spi_bus_type,
- .owner = THIS_MODULE,
- },
-
- .probe = mts_spi_ap2_dout_probe,
- .remove = mts_spi_ap2_dout_remove,
-};
-
-static int mts_spi_ap2_din_probe(struct spi_device *spi)
-{
- int tmp;
-
- if (! have_accessory_card_slot_2 || mts_ap2_product_id != MTAC_GPIOB_0_0) {
- log_error("accessory card 2 digital inputs not available");
- return -ENODEV;
- }
-
- spi->max_speed_hz = ap_din_max_speed_hz;
- spi->mode = SPI_CPOL;
-
- log_debug("ap2_din_max_speed_hz: %d", ap_din_max_speed_hz);
-
- tmp = spi_setup(spi);
- if (tmp < 0) {
- log_error("spi_setup accessory card 2 din failed");
- return tmp;
- }
-
- spi_ap2_din_dev = spi;
-
- return 0;
-}
-
-static int mts_spi_ap2_din_remove(struct spi_device *spi)
-{
- spi_ap2_din_dev = NULL;
-
- return 0;
-}
-
-static struct spi_driver mts_spi_ap2_din_driver = {
- .driver = {
- .name = "mts-io-ap2-din",
- .bus = &spi_bus_type,
- .owner = THIS_MODULE,
- },
-
- .probe = mts_spi_ap2_din_probe,
- .remove = mts_spi_ap2_din_remove,
-};
-
-static int mts_spi_ap2_adc_probe(struct spi_device *spi)
-{
- int tmp;
-
- if (! have_accessory_card_slot_2 || mts_ap2_product_id != MTAC_GPIOB_0_0) {
- log_error("accessory card 2 analog to digital not available");
- return -ENODEV;
- }
-
- spi->max_speed_hz = ap_adc_max_speed_hz;
- spi->mode = 0;
-
- log_debug("ap2_adc_max_speed_hz: %d", ap_adc_max_speed_hz);
- log_debug("ap2_adc_mode: %d", spi->mode);
-
- tmp = spi_setup(spi);
- if (tmp < 0) {
- log_error("spi_setup accessory card 2 adc failed");
- return tmp;
- }
-
- spi_ap2_adc_dev = spi;
-
- return 0;
-}
-
-static int mts_spi_ap2_adc_remove(struct spi_device *spi)
-{
- spi_ap2_adc_dev = NULL;
-
- return 0;
-}
-
-static struct spi_driver mts_spi_ap2_adc_driver = {
- .driver = {
- .name = "mts-io-ap2-adc",
- .bus = &spi_bus_type,
- .owner = THIS_MODULE,
- },
-
- .probe = mts_spi_ap2_adc_probe,
- .remove = mts_spi_ap2_adc_remove,
-};
-
static int mts_spi_board_temp_probe(struct spi_device *spi)
{
int tmp;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 00:00:06 +0000