diff options
Diffstat (limited to 'drivers/atm')
| -rw-r--r-- | drivers/atm/solos-pci.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c index c909b7b7d5f1..473d80878ec9 100644 --- a/drivers/atm/solos-pci.c +++ b/drivers/atm/solos-pci.c @@ -56,6 +56,7 @@ #define FLASH_BUSY 0x60 #define FPGA_MODE 0x5C #define FLASH_MODE 0x58 +#define GPIO_STATUS 0x54 #define TX_DMA_ADDR(port) (0x40 + (4 * (port))) #define RX_DMA_ADDR(port) (0x30 + (4 * (port))) @@ -498,6 +499,78 @@ static ssize_t console_store(struct device *dev, struct device_attribute *attr, return err?:count; } +struct geos_gpio_attr { + struct device_attribute attr; + int offset; +}; + +#define SOLOS_GPIO_ATTR(_name, _mode, _show, _store, _offset) \ + struct geos_gpio_attr gpio_attr_##_name = { \ + .attr = __ATTR(_name, _mode, _show, _store), \ + .offset = _offset } + +static ssize_t geos_gpio_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); + struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); + struct solos_card *card = pci_get_drvdata(pdev); + uint32_t data32; + + if (count != 1 && (count != 2 || buf[1] != '\n')) + return -EINVAL; + + spin_lock_irq(&card->param_queue_lock); + data32 = ioread32(card->config_regs + GPIO_STATUS); + if (buf[0] == '1') { + data32 |= 1 << gattr->offset; + iowrite32(data32, card->config_regs + GPIO_STATUS); + } else if (buf[0] == '0') { + data32 &= ~(1 << gattr->offset); + iowrite32(data32, card->config_regs + GPIO_STATUS); + } else { + count = -EINVAL; + } + spin_lock_irq(&card->param_queue_lock); + return count; +} + +static ssize_t geos_gpio_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); + struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); + struct solos_card *card = pci_get_drvdata(pdev); + uint32_t data32; + + data32 = ioread32(card->config_regs + GPIO_STATUS); + data32 = (data32 >> gattr->offset) & 1; + + return sprintf(buf, "%d\n", data32); +} + +static ssize_t hardware_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct pci_dev *pdev = container_of(dev, struct pci_dev, dev); + struct geos_gpio_attr *gattr = container_of(attr, struct geos_gpio_attr, attr); + struct solos_card *card = pci_get_drvdata(pdev); + uint32_t data32; + + data32 = ioread32(card->config_regs + GPIO_STATUS); + switch (gattr->offset) { + case 0: + /* HardwareVersion */ + data32 = data32 & 0x1F; + break; + case 1: + /* HardwareVariant */ + data32 = (data32 >> 5) & 0x0F; + break; + } + return sprintf(buf, "%d\n", data32); +} + static DEVICE_ATTR(console, 0644, console_show, console_store); @@ -506,6 +579,14 @@ static DEVICE_ATTR(console, 0644, console_show, console_store); #include "solos-attrlist.c" +static SOLOS_GPIO_ATTR(GPIO1, 0644, geos_gpio_show, geos_gpio_store, 9); +static SOLOS_GPIO_ATTR(GPIO2, 0644, geos_gpio_show, geos_gpio_store, 10); +static SOLOS_GPIO_ATTR(GPIO3, 0644, geos_gpio_show, geos_gpio_store, 11); +static SOLOS_GPIO_ATTR(GPIO4, 0644, geos_gpio_show, geos_gpio_store, 12); +static SOLOS_GPIO_ATTR(GPIO5, 0644, geos_gpio_show, geos_gpio_store, 13); +static SOLOS_GPIO_ATTR(PushButton, 0444, geos_gpio_show, NULL, 14); +static SOLOS_GPIO_ATTR(HardwareVersion, 0444, hardware_show, NULL, 0); +static SOLOS_GPIO_ATTR(HardwareVariant, 0444, hardware_show, NULL, 1); #undef SOLOS_ATTR_RO #undef SOLOS_ATTR_RW @@ -522,6 +603,23 @@ static struct attribute_group solos_attr_group = { .name = "parameters", }; +static struct attribute *gpio_attrs[] = { + &gpio_attr_GPIO1.attr.attr, + &gpio_attr_GPIO2.attr.attr, + &gpio_attr_GPIO3.attr.attr, + &gpio_attr_GPIO4.attr.attr, + &gpio_attr_GPIO5.attr.attr, + &gpio_attr_PushButton.attr.attr, + &gpio_attr_HardwareVersion.attr.attr, + &gpio_attr_HardwareVariant.attr.attr, + NULL +}; + +static struct attribute_group gpio_attr_group = { + .attrs = gpio_attrs, + .name = "gpio", +}; + static int flash_upgrade(struct solos_card *card, int chip) { const struct firmware *fw; @@ -1179,6 +1277,10 @@ static int fpga_probe(struct pci_dev *dev, const struct pci_device_id *id) if (err) goto out_free_irq; + if (card->fpga_version >= DMA_SUPPORTED && + sysfs_create_group(&card->dev->dev.kobj, &gpio_attr_group)) + dev_err(&card->dev->dev, "Could not register parameter group for GPIOs\n"); + return 0; out_free_irq: @@ -1289,6 +1391,9 @@ static void fpga_remove(struct pci_dev *dev) iowrite32(1, card->config_regs + FPGA_MODE); (void)ioread32(card->config_regs + FPGA_MODE); + if (card->fpga_version >= DMA_SUPPORTED) + sysfs_remove_group(&card->dev->dev.kobj, &gpio_attr_group); + atm_remove(card); free_irq(dev->irq, card); |