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-rw-r--r--arch/arm/common/locomo.c359
-rw-r--r--include/asm-arm/hardware/locomo.h224
2 files changed, 443 insertions, 140 deletions
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index 34c8cf33ad9a..41f12658c8b4 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -34,11 +34,33 @@
#include <asm/hardware/locomo.h>
+/* M62332 output channel selection */
+#define M62332_EVR_CH 1 /* M62332 volume channel number */
+ /* 0 : CH.1 , 1 : CH. 2 */
+/* DAC send data */
+#define M62332_SLAVE_ADDR 0x4e /* Slave address */
+#define M62332_W_BIT 0x00 /* W bit (0 only) */
+#define M62332_SUB_ADDR 0x00 /* Sub address */
+#define M62332_A_BIT 0x00 /* A bit (0 only) */
+
+/* DAC setup and hold times (expressed in us) */
+#define DAC_BUS_FREE_TIME 5 /* 4.7 us */
+#define DAC_START_SETUP_TIME 5 /* 4.7 us */
+#define DAC_STOP_SETUP_TIME 4 /* 4.0 us */
+#define DAC_START_HOLD_TIME 5 /* 4.7 us */
+#define DAC_SCL_LOW_HOLD_TIME 5 /* 4.7 us */
+#define DAC_SCL_HIGH_HOLD_TIME 4 /* 4.0 us */
+#define DAC_DATA_SETUP_TIME 1 /* 250 ns */
+#define DAC_DATA_HOLD_TIME 1 /* 300 ns */
+#define DAC_LOW_SETUP_TIME 1 /* 300 ns */
+#define DAC_HIGH_SETUP_TIME 1 /* 1000 ns */
+
/* the following is the overall data for the locomo chip */
struct locomo {
struct device *dev;
unsigned long phys;
unsigned int irq;
+ spinlock_t lock;
void *base;
};
@@ -50,7 +72,57 @@ struct locomo_dev_info {
const char * name;
};
+/* All the locomo devices. If offset is non-zero, the mapbase for the
+ * locomo_dev will be set to the chip base plus offset. If offset is
+ * zero, then the mapbase for the locomo_dev will be set to zero. An
+ * offset of zero means the device only uses GPIOs or other helper
+ * functions inside this file */
static struct locomo_dev_info locomo_devices[] = {
+ {
+ .devid = LOCOMO_DEVID_KEYBOARD,
+ .irq = {
+ IRQ_LOCOMO_KEY,
+ },
+ .name = "locomo-keyboard",
+ .offset = LOCOMO_KEYBOARD,
+ .length = 16,
+ },
+ {
+ .devid = LOCOMO_DEVID_FRONTLIGHT,
+ .irq = {},
+ .name = "locomo-frontlight",
+ .offset = LOCOMO_FRONTLIGHT,
+ .length = 8,
+
+ },
+ {
+ .devid = LOCOMO_DEVID_BACKLIGHT,
+ .irq = {},
+ .name = "locomo-backlight",
+ .offset = LOCOMO_BACKLIGHT,
+ .length = 8,
+ },
+ {
+ .devid = LOCOMO_DEVID_AUDIO,
+ .irq = {},
+ .name = "locomo-audio",
+ .offset = LOCOMO_AUDIO,
+ .length = 4,
+ },
+ {
+ .devid = LOCOMO_DEVID_LED,
+ .irq = {},
+ .name = "locomo-led",
+ .offset = LOCOMO_LED,
+ .length = 8,
+ },
+ {
+ .devid = LOCOMO_DEVID_UART,
+ .irq = {},
+ .name = "locomo-uart",
+ .offset = 0,
+ .length = 0,
+ },
};
@@ -146,7 +218,7 @@ static void locomo_key_handler(unsigned int irq, struct irqdesc *desc,
struct irqdesc *d;
void *mapbase = get_irq_chipdata(irq);
- if (locomo_readl(mapbase + LOCOMO_KIC) & 0x0001) {
+ if (locomo_readl(mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC) & 0x0001) {
d = irq_desc + LOCOMO_IRQ_KEY_START;
d->handle(LOCOMO_IRQ_KEY_START, d, regs);
}
@@ -156,27 +228,27 @@ static void locomo_key_ack_irq(unsigned int irq)
{
void *mapbase = get_irq_chipdata(irq);
unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_KIC);
+ r = locomo_readl(mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
r &= ~(0x0100 << (irq - LOCOMO_IRQ_KEY_START));
- locomo_writel(r, mapbase + LOCOMO_KIC);
+ locomo_writel(r, mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
}
static void locomo_key_mask_irq(unsigned int irq)
{
void *mapbase = get_irq_chipdata(irq);
unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_KIC);
+ r = locomo_readl(mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
r &= ~(0x0010 << (irq - LOCOMO_IRQ_KEY_START));
- locomo_writel(r, mapbase + LOCOMO_KIC);
+ locomo_writel(r, mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
}
static void locomo_key_unmask_irq(unsigned int irq)
{
void *mapbase = get_irq_chipdata(irq);
unsigned int r;
- r = locomo_readl(mapbase + LOCOMO_KIC);
+ r = locomo_readl(mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
r |= (0x0010 << (irq - LOCOMO_IRQ_KEY_START));
- locomo_writel(r, mapbase + LOCOMO_KIC);
+ locomo_writel(r, mapbase + LOCOMO_KEYBOARD + LOCOMO_KIC);
}
static struct irqchip locomo_key_chip = {
@@ -421,13 +493,11 @@ static void locomo_dev_release(struct device *_dev)
{
struct locomo_dev *dev = LOCOMO_DEV(_dev);
- release_resource(&dev->res);
kfree(dev);
}
static int
-locomo_init_one_child(struct locomo *lchip, struct resource *parent,
- struct locomo_dev_info *info)
+locomo_init_one_child(struct locomo *lchip, struct locomo_dev_info *info)
{
struct locomo_dev *dev;
int ret;
@@ -454,25 +524,17 @@ locomo_init_one_child(struct locomo *lchip, struct resource *parent,
dev->dev.bus = &locomo_bus_type;
dev->dev.release = locomo_dev_release;
dev->dev.coherent_dma_mask = lchip->dev->coherent_dma_mask;
- dev->res.start = lchip->phys + info->offset;
- dev->res.end = dev->res.start + info->length;
- dev->res.name = dev->dev.bus_id;
- dev->res.flags = IORESOURCE_MEM;
- dev->mapbase = lchip->base + info->offset;
- memmove(dev->irq, info->irq, sizeof(dev->irq));
- if (info->length) {
- ret = request_resource(parent, &dev->res);
- if (ret) {
- printk("LoCoMo: failed to allocate resource for %s\n",
- dev->res.name);
- goto out;
- }
- }
+ if (info->offset)
+ dev->mapbase = lchip->base + info->offset;
+ else
+ dev->mapbase = 0;
+ dev->length = info->length;
+
+ memmove(dev->irq, info->irq, sizeof(dev->irq));
ret = device_register(&dev->dev);
if (ret) {
- release_resource(&dev->res);
out:
kfree(dev);
}
@@ -504,6 +566,8 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
memset(lchip, 0, sizeof(struct locomo));
+ spin_lock_init(&lchip->lock);
+
lchip->dev = me;
dev_set_drvdata(lchip->dev, lchip);
@@ -523,7 +587,7 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
/* locomo initialize */
locomo_writel(0, lchip->base + LOCOMO_ICR);
/* KEYBOARD */
- locomo_writel(0, lchip->base + LOCOMO_KIC);
+ locomo_writel(0, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KIC);
/* GPIO */
locomo_writel(0, lchip->base + LOCOMO_GPO);
@@ -534,8 +598,8 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
locomo_writel(0, lchip->base + LOCOMO_GIE);
/* FrontLight */
- locomo_writel(0, lchip->base + LOCOMO_ALS);
- locomo_writel(0, lchip->base + LOCOMO_ALD);
+ locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
+ locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD);
/* Longtime timer */
locomo_writel(0, lchip->base + LOCOMO_LTINT);
/* SPI */
@@ -578,7 +642,7 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
locomo_setup_irq(lchip);
for (i = 0; i < ARRAY_SIZE(locomo_devices); i++)
- locomo_init_one_child(lchip, mem, &locomo_devices[i]);
+ locomo_init_one_child(lchip, &locomo_devices[i]);
return 0;
@@ -654,6 +718,238 @@ static inline struct locomo *locomo_chip_driver(struct locomo_dev *ldev)
return (struct locomo *)dev_get_drvdata(ldev->dev.parent);
}
+void locomo_gpio_set_dir(struct locomo_dev *ldev, unsigned int bits, unsigned int dir)
+{
+ struct locomo *lchip = locomo_chip_driver(ldev);
+ unsigned long flags;
+ unsigned int r;
+
+ spin_lock_irqsave(&lchip->lock, flags);
+
+ r = locomo_readl(lchip->base + LOCOMO_GPD);
+ r &= ~bits;
+ locomo_writel(r, lchip->base + LOCOMO_GPD);
+
+ r = locomo_readl(lchip->base + LOCOMO_GPE);
+ if (dir)
+ r |= bits;
+ else
+ r &= ~bits;
+ locomo_writel(r, lchip->base + LOCOMO_GPE);
+
+ spin_unlock_irqrestore(&lchip->lock, flags);
+}
+
+unsigned int locomo_gpio_read_level(struct locomo_dev *ldev, unsigned int bits)
+{
+ struct locomo *lchip = locomo_chip_driver(ldev);
+ unsigned long flags;
+ unsigned int ret;
+
+ spin_lock_irqsave(&lchip->lock, flags);
+ ret = locomo_readl(lchip->base + LOCOMO_GPL);
+ spin_unlock_irqrestore(&lchip->lock, flags);
+
+ ret &= bits;
+ return ret;
+}
+
+unsigned int locomo_gpio_read_output(struct locomo_dev *ldev, unsigned int bits)
+{
+ struct locomo *lchip = locomo_chip_driver(ldev);
+ unsigned long flags;
+ unsigned int ret;
+
+ spin_lock_irqsave(&lchip->lock, flags);
+ ret = locomo_readl(lchip->base + LOCOMO_GPO);
+ spin_unlock_irqrestore(&lchip->lock, flags);
+
+ ret &= bits;
+ return ret;
+}
+
+void locomo_gpio_write(struct locomo_dev *ldev, unsigned int bits, unsigned int set)
+{
+ struct locomo *lchip = locomo_chip_driver(ldev);
+ unsigned long flags;
+ unsigned int r;
+
+ spin_lock_irqsave(&lchip->lock, flags);
+
+ r = locomo_readl(lchip->base + LOCOMO_GPO);
+ if (set)
+ r |= bits;
+ else
+ r &= ~bits;
+ locomo_writel(r, lchip->base + LOCOMO_GPO);
+
+ spin_unlock_irqrestore(&lchip->lock, flags);
+}
+
+static void locomo_m62332_sendbit(void *mapbase, int bit)
+{
+ unsigned int r;
+
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SCLOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ udelay(DAC_DATA_HOLD_TIME); /* 300 nsec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SCLOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
+
+ if (bit & 1) {
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r |= LOCOMO_DAC_SDAOEB;
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
+ } else {
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SDAOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ }
+
+ udelay(DAC_DATA_SETUP_TIME); /* 250 nsec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r |= LOCOMO_DAC_SCLOEB;
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
+ udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.0 usec */
+}
+
+void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int channel)
+{
+ struct locomo *lchip = locomo_chip_driver(ldev);
+ int i;
+ unsigned char data;
+ unsigned int r;
+ void *mapbase = lchip->base;
+ unsigned long flags;
+
+ spin_lock_irqsave(&lchip->lock, flags);
+
+ /* Start */
+ udelay(DAC_BUS_FREE_TIME); /* 5.0 usec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r |= LOCOMO_DAC_SCLOEB | LOCOMO_DAC_SDAOEB;
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
+ udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.0 usec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SDAOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_START_HOLD_TIME); /* 5.0 usec */
+ udelay(DAC_DATA_HOLD_TIME); /* 300 nsec */
+
+ /* Send slave address and W bit (LSB is W bit) */
+ data = (M62332_SLAVE_ADDR << 1) | M62332_W_BIT;
+ for (i = 1; i <= 8; i++) {
+ locomo_m62332_sendbit(mapbase, data >> (8 - i));
+ }
+
+ /* Check A bit */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SCLOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SDAOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r |= LOCOMO_DAC_SCLOEB;
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
+ udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
+ if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
+ printk(KERN_WARNING "locomo: m62332_senddata Error 1\n");
+ return;
+ }
+
+ /* Send Sub address (LSB is channel select) */
+ /* channel = 0 : ch1 select */
+ /* = 1 : ch2 select */
+ data = M62332_SUB_ADDR + channel;
+ for (i = 1; i <= 8; i++) {
+ locomo_m62332_sendbit(mapbase, data >> (8 - i));
+ }
+
+ /* Check A bit */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SCLOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SDAOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r |= LOCOMO_DAC_SCLOEB;
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
+ udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
+ if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
+ printk(KERN_WARNING "locomo: m62332_senddata Error 2\n");
+ return;
+ }
+
+ /* Send DAC data */
+ for (i = 1; i <= 8; i++) {
+ locomo_m62332_sendbit(mapbase, dac_data >> (8 - i));
+ }
+
+ /* Check A bit */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SCLOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SDAOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r |= LOCOMO_DAC_SCLOEB;
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
+ udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4.7 usec */
+ if (locomo_readl(mapbase + LOCOMO_DAC) & LOCOMO_DAC_SDAOEB) { /* High is error */
+ printk(KERN_WARNING "locomo: m62332_senddata Error 3\n");
+ return;
+ }
+
+ /* stop */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r &= ~(LOCOMO_DAC_SCLOEB);
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 300 nsec */
+ udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r |= LOCOMO_DAC_SCLOEB;
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
+ udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4 usec */
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r |= LOCOMO_DAC_SDAOEB;
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_HIGH_SETUP_TIME); /* 1000 nsec */
+ udelay(DAC_SCL_HIGH_HOLD_TIME); /* 4 usec */
+
+ r = locomo_readl(mapbase + LOCOMO_DAC);
+ r |= LOCOMO_DAC_SCLOEB | LOCOMO_DAC_SDAOEB;
+ locomo_writel(r, mapbase + LOCOMO_DAC);
+ udelay(DAC_LOW_SETUP_TIME); /* 1000 nsec */
+ udelay(DAC_SCL_LOW_HOLD_TIME); /* 4.7 usec */
+
+ spin_unlock_irqrestore(&lchip->lock, flags);
+}
+
/*
* LoCoMo "Register Access Bus."
*
@@ -755,3 +1051,8 @@ MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
EXPORT_SYMBOL(locomo_driver_register);
EXPORT_SYMBOL(locomo_driver_unregister);
+EXPORT_SYMBOL(locomo_gpio_set_dir);
+EXPORT_SYMBOL(locomo_gpio_read_level);
+EXPORT_SYMBOL(locomo_gpio_read_output);
+EXPORT_SYMBOL(locomo_gpio_write);
+EXPORT_SYMBOL(locomo_m62332_senddata);
diff --git a/include/asm-arm/hardware/locomo.h b/include/asm-arm/hardware/locomo.h
index 98d6da2dc424..5f9218c15142 100644
--- a/include/asm-arm/hardware/locomo.h
+++ b/include/asm-arm/hardware/locomo.h
@@ -35,146 +35,139 @@
#define LOCOMO_MCSX3 0x1c
/* Touch panel controller */
-#define LOCOMO_ASD 0x20 /* AD start delay */
-#define LOCOMO_HSD 0x28 /* HSYS delay */
-#define LOCOMO_HSC 0x2c /* HSYS period */
-#define LOCOMO_TADC 0x30 /* tablet ADC clock */
+#define LOCOMO_ASD 0x20 /* AD start delay */
+#define LOCOMO_HSD 0x28 /* HSYS delay */
+#define LOCOMO_HSC 0x2c /* HSYS period */
+#define LOCOMO_TADC 0x30 /* tablet ADC clock */
-/* TFT signal */
-#define LOCOMO_TC 0x38 /* TFT control signal */
-#define LOCOMO_CPSD 0x3c /* CPS delay */
-
-/* Key controller */
-#define LOCOMO_KIB 0x40 /* KIB level */
-#define LOCOMO_KSC 0x44 /* KSTRB control */
-#define LOCOMO_KCMD 0x48 /* KSTRB command */
-#define LOCOMO_KIC 0x4c /* Key interrupt */
-
-/* Audio clock */
-#define LOCOMO_ACC 0x54
-
-/* SPI interface */
-#define LOCOMO_SPIMD 0x60 /* SPI mode setting */
-#define LOCOMO_SPICT 0x64 /* SPI mode control */
-#define LOCOMO_SPIST 0x68 /* SPI status */
-#define LOCOMO_SPIIS 0x70 /* SPI interrupt status */
-#define LOCOMO_SPIWE 0x74 /* SPI interrupt status write enable */
-#define LOCOMO_SPIIE 0x78 /* SPI interrupt enable */
-#define LOCOMO_SPIIR 0x7c /* SPI interrupt request */
-#define LOCOMO_SPITD 0x80 /* SPI transfer data write */
-#define LOCOMO_SPIRD 0x84 /* SPI receive data read */
-#define LOCOMO_SPITS 0x88 /* SPI transfer data shift */
-#define LOCOMO_SPIRS 0x8C /* SPI receive data shift */
-
-#define LOCOMO_SPI_TEND (1 << 3) /* Transfer end bit */
-#define LOCOMO_SPI_OVRN (1 << 2) /* Over Run bit */
-#define LOCOMO_SPI_RFW (1 << 1) /* write buffer bit */
-#define LOCOMO_SPI_RFR (1) /* read buffer bit */
-
-/* GPIO */
-#define LOCOMO_GPD 0x90 /* GPIO direction */
-#define LOCOMO_GPE 0x94 /* GPIO input enable */
-#define LOCOMO_GPL 0x98 /* GPIO level */
-#define LOCOMO_GPO 0x9c /* GPIO out data setteing */
-#define LOCOMO_GRIE 0xa0 /* GPIO rise detection */
-#define LOCOMO_GFIE 0xa4 /* GPIO fall detection */
-#define LOCOMO_GIS 0xa8 /* GPIO edge detection status */
-#define LOCOMO_GWE 0xac /* GPIO status write enable */
-#define LOCOMO_GIE 0xb0 /* GPIO interrupt enable */
-#define LOCOMO_GIR 0xb4 /* GPIO interrupt request */
-
-#define LOCOMO_GPIO0 (1<<0)
-#define LOCOMO_GPIO1 (1<<1)
-#define LOCOMO_GPIO2 (1<<2)
-#define LOCOMO_GPIO3 (1<<3)
-#define LOCOMO_GPIO4 (1<<4)
-#define LOCOMO_GPIO5 (1<<5)
-#define LOCOMO_GPIO6 (1<<6)
-#define LOCOMO_GPIO7 (1<<7)
-#define LOCOMO_GPIO8 (1<<8)
-#define LOCOMO_GPIO9 (1<<9)
-#define LOCOMO_GPIO10 (1<<10)
-#define LOCOMO_GPIO11 (1<<11)
-#define LOCOMO_GPIO12 (1<<12)
-#define LOCOMO_GPIO13 (1<<13)
-#define LOCOMO_GPIO14 (1<<14)
-#define LOCOMO_GPIO15 (1<<15)
-
-/* Front light adjustment controller */
-#define LOCOMO_ALS 0xc8 /* Adjust light cycle */
-#define LOCOMO_ALD 0xcc /* Adjust light duty */
-
-/* PCM audio interface */
-#define LOCOMO_PAIF 0xd0
/* Long time timer */
-#define LOCOMO_LTC 0xd8 /* LTC interrupt setting */
-#define LOCOMO_LTINT 0xdc /* LTC interrupt */
+#define LOCOMO_LTC 0xd8 /* LTC interrupt setting */
+#define LOCOMO_LTINT 0xdc /* LTC interrupt */
/* DAC control signal for LCD (COMADJ ) */
-#define LOCOMO_DAC 0xe0
-
+#define LOCOMO_DAC 0xe0
/* DAC control */
#define LOCOMO_DAC_SCLOEB 0x08 /* SCL pin output data */
#define LOCOMO_DAC_TEST 0x04 /* Test bit */
#define LOCOMO_DAC_SDA 0x02 /* SDA pin level (read-only) */
#define LOCOMO_DAC_SDAOEB 0x01 /* SDA pin output data */
-/* LED controller */
-#define LOCOMO_LPT0 0xe8 /* LEDPWM0 timer */
-#define LOCOMO_LPT1 0xec /* LEDPWM1 timer */
+/* SPI interface */
+#define LOCOMO_SPIMD 0x60 /* SPI mode setting */
+#define LOCOMO_SPICT 0x64 /* SPI mode control */
+#define LOCOMO_SPIST 0x68 /* SPI status */
+#define LOCOMO_SPIIS 0x70 /* SPI interrupt status */
+#define LOCOMO_SPIWE 0x74 /* SPI interrupt status write enable */
+#define LOCOMO_SPIIE 0x78 /* SPI interrupt enable */
+#define LOCOMO_SPIIR 0x7c /* SPI interrupt request */
+#define LOCOMO_SPITD 0x80 /* SPI transfer data write */
+#define LOCOMO_SPIRD 0x84 /* SPI receive data read */
+#define LOCOMO_SPITS 0x88 /* SPI transfer data shift */
+#define LOCOMO_SPIRS 0x8C /* SPI receive data shift */
+#define LOCOMO_SPI_TEND (1 << 3) /* Transfer end bit */
+#define LOCOMO_SPI_OVRN (1 << 2) /* Over Run bit */
+#define LOCOMO_SPI_RFW (1 << 1) /* write buffer bit */
+#define LOCOMO_SPI_RFR (1) /* read buffer bit */
-#define LOCOMO_LPT_TOFH 0x80 /* */
-#define LOCOMO_LPT_TOFL 0x08 /* */
-#define LOCOMO_LPT_TOH(TOH) ((TOH & 0x7) << 4) /* */
-#define LOCOMO_LPT_TOL(TOL) ((TOL & 0x7)) /* */
+/* GPIO */
+#define LOCOMO_GPD 0x90 /* GPIO direction */
+#define LOCOMO_GPE 0x94 /* GPIO input enable */
+#define LOCOMO_GPL 0x98 /* GPIO level */
+#define LOCOMO_GPO 0x9c /* GPIO out data setteing */
+#define LOCOMO_GRIE 0xa0 /* GPIO rise detection */
+#define LOCOMO_GFIE 0xa4 /* GPIO fall detection */
+#define LOCOMO_GIS 0xa8 /* GPIO edge detection status */
+#define LOCOMO_GWE 0xac /* GPIO status write enable */
+#define LOCOMO_GIE 0xb0 /* GPIO interrupt enable */
+#define LOCOMO_GIR 0xb4 /* GPIO interrupt request */
+#define LOCOMO_GPIO(Nb) (0x01 << (Nb))
+#define LOCOMO_GPIO_RTS LOCOMO_GPIO(0)
+#define LOCOMO_GPIO_CTS LOCOMO_GPIO(1)
+#define LOCOMO_GPIO_DSR LOCOMO_GPIO(2)
+#define LOCOMO_GPIO_DTR LOCOMO_GPIO(3)
+#define LOCOMO_GPIO_LCD_VSHA_ON LOCOMO_GPIO(4)
+#define LOCOMO_GPIO_LCD_VSHD_ON LOCOMO_GPIO(5)
+#define LOCOMO_GPIO_LCD_VEE_ON LOCOMO_GPIO(6)
+#define LOCOMO_GPIO_LCD_MOD LOCOMO_GPIO(7)
+#define LOCOMO_GPIO_DAC_ON LOCOMO_GPIO(8)
+#define LOCOMO_GPIO_FL_VR LOCOMO_GPIO(9)
+#define LOCOMO_GPIO_DAC_SDATA LOCOMO_GPIO(10)
+#define LOCOMO_GPIO_DAC_SCK LOCOMO_GPIO(11)
+#define LOCOMO_GPIO_DAC_SLOAD LOCOMO_GPIO(12)
+
+/* Start the definitions of the devices. Each device has an initial
+ * base address and a series of offsets from that base address. */
+
+/* Keyboard controller */
+#define LOCOMO_KEYBOARD 0x40
+#define LOCOMO_KIB 0x00 /* KIB level */
+#define LOCOMO_KSC 0x04 /* KSTRB control */
+#define LOCOMO_KCMD 0x08 /* KSTRB command */
+#define LOCOMO_KIC 0x0c /* Key interrupt */
+/* Front light adjustment controller */
+#define LOCOMO_FRONTLIGHT 0xc8
+#define LOCOMO_ALS 0x00 /* Adjust light cycle */
+#define LOCOMO_ALD 0x04 /* Adjust light duty */
+
+/* Backlight controller: TFT signal */
+#define LOCOMO_BACKLIGHT 0x38
+#define LOCOMO_TC 0x00 /* TFT control signal */
+#define LOCOMO_CPSD 0x04 /* CPS delay */
+
+/* Audio controller */
+#define LOCOMO_AUDIO 0x54
+#define LOCOMO_ACC 0x00 /* Audio clock */
+#define LOCOMO_PAIF 0x7C /* PCM audio interface */
/* Audio clock */
-#define LOCOMO_ACC_XON 0x80 /* */
-#define LOCOMO_ACC_XEN 0x40 /* */
-#define LOCOMO_ACC_XSEL0 0x00 /* */
-#define LOCOMO_ACC_XSEL1 0x20 /* */
-#define LOCOMO_ACC_MCLKEN 0x10 /* */
-#define LOCOMO_ACC_64FSEN 0x08 /* */
+#define LOCOMO_ACC_XON 0x80
+#define LOCOMO_ACC_XEN 0x40
+#define LOCOMO_ACC_XSEL0 0x00
+#define LOCOMO_ACC_XSEL1 0x20
+#define LOCOMO_ACC_MCLKEN 0x10
+#define LOCOMO_ACC_64FSEN 0x08
#define LOCOMO_ACC_CLKSEL000 0x00 /* mclk 2 */
#define LOCOMO_ACC_CLKSEL001 0x01 /* mclk 3 */
#define LOCOMO_ACC_CLKSEL010 0x02 /* mclk 4 */
#define LOCOMO_ACC_CLKSEL011 0x03 /* mclk 6 */
#define LOCOMO_ACC_CLKSEL100 0x04 /* mclk 8 */
#define LOCOMO_ACC_CLKSEL101 0x05 /* mclk 12 */
-
/* PCM audio interface */
-#define LOCOMO_PAIF_SCINV 0x20 /* */
-#define LOCOMO_PAIF_SCEN 0x10 /* */
-#define LOCOMO_PAIF_LRCRST 0x08 /* */
-#define LOCOMO_PAIF_LRCEVE 0x04 /* */
-#define LOCOMO_PAIF_LRCINV 0x02 /* */
-#define LOCOMO_PAIF_LRCEN 0x01 /* */
+#define LOCOMO_PAIF_SCINV 0x20
+#define LOCOMO_PAIF_SCEN 0x10
+#define LOCOMO_PAIF_LRCRST 0x08
+#define LOCOMO_PAIF_LRCEVE 0x04
+#define LOCOMO_PAIF_LRCINV 0x02
+#define LOCOMO_PAIF_LRCEN 0x01
-/* GPIO */
-#define LOCOMO_GPIO(Nb) (0x01 << (Nb)) /* LoCoMo GPIO [0...15] */
-#define LOCOMO_GPIO_RTS LOCOMO_GPIO(0) /* LoCoMo GPIO [0] */
-#define LOCOMO_GPIO_CTS LOCOMO_GPIO(1) /* LoCoMo GPIO [1] */
-#define LOCOMO_GPIO_DSR LOCOMO_GPIO(2) /* LoCoMo GPIO [2] */
-#define LOCOMO_GPIO_DTR LOCOMO_GPIO(3) /* LoCoMo GPIO [3] */
-#define LOCOMO_GPIO_LCD_VSHA_ON LOCOMO_GPIO(4) /* LoCoMo GPIO [4] */
-#define LOCOMO_GPIO_LCD_VSHD_ON LOCOMO_GPIO(5) /* LoCoMo GPIO [5] */
-#define LOCOMO_GPIO_LCD_VEE_ON LOCOMO_GPIO(6) /* LoCoMo GPIO [6] */
-#define LOCOMO_GPIO_LCD_MOD LOCOMO_GPIO(7) /* LoCoMo GPIO [7] */
-#define LOCOMO_GPIO_DAC_ON LOCOMO_GPIO(8) /* LoCoMo GPIO [8] */
-#define LOCOMO_GPIO_FL_VR LOCOMO_GPIO(9) /* LoCoMo GPIO [9] */
-#define LOCOMO_GPIO_DAC_SDATA LOCOMO_GPIO(10) /* LoCoMo GPIO [10] */
-#define LOCOMO_GPIO_DAC_SCK LOCOMO_GPIO(11) /* LoCoMo GPIO [11] */
-#define LOCOMO_GPIO_DAC_SLOAD LOCOMO_GPIO(12) /* LoCoMo GPIO [12] */
+/* LED controller */
+#define LOCOMO_LED 0xe8
+#define LOCOMO_LPT0 0x00
+#define LOCOMO_LPT1 0x04
+/* LED control */
+#define LOCOMO_LPT_TOFH 0x80
+#define LOCOMO_LPT_TOFL 0x08
+#define LOCOMO_LPT_TOH(TOH) ((TOH & 0x7) << 4)
+#define LOCOMO_LPT_TOL(TOL) ((TOL & 0x7))
extern struct bus_type locomo_bus_type;
+#define LOCOMO_DEVID_KEYBOARD 0
+#define LOCOMO_DEVID_FRONTLIGHT 1
+#define LOCOMO_DEVID_BACKLIGHT 2
+#define LOCOMO_DEVID_AUDIO 3
+#define LOCOMO_DEVID_LED 4
+#define LOCOMO_DEVID_UART 5
+
struct locomo_dev {
struct device dev;
unsigned int devid;
- struct resource res;
- void *mapbase;
unsigned int irq[1];
+
+ void *mapbase;
+ unsigned long length;
+
u64 dma_mask;
};
@@ -201,4 +194,13 @@ void locomo_lcd_power(struct locomo_dev *, int, unsigned int);
int locomo_driver_register(struct locomo_driver *);
void locomo_driver_unregister(struct locomo_driver *);
+/* GPIO control functions */
+void locomo_gpio_set_dir(struct locomo_dev *ldev, unsigned int bits, unsigned int dir);
+unsigned int locomo_gpio_read_level(struct locomo_dev *ldev, unsigned int bits);
+unsigned int locomo_gpio_read_output(struct locomo_dev *ldev, unsigned int bits);
+void locomo_gpio_write(struct locomo_dev *ldev, unsigned int bits, unsigned int set);
+
+/* M62332 control function */
+void locomo_m62332_senddata(struct locomo_dev *ldev, unsigned int dac_data, int channel);
+
#endif
generated by cgit v1.2.3 (git 2.46.0) at 2026-02-08 14:37:42 +0000