* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#undef DEBUG
-#undef VERBOSE
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
-#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/usb/ch9.h>
#include <linux/usb/otg.h>
#include <linux/i2c.h>
#include <linux/workqueue.h>
+
+#include <asm/irq.h>
#include <asm/arch/usb.h>
-#include <asm/mach-types.h> /* FIXME: Move machine_is_* to board-*.c files */
#ifndef DEBUG
#undef VERBOSE
#endif
+
#define DRIVER_VERSION "24 August 2004"
#define DRIVER_NAME (isp1301_driver.driver.name)
struct isp1301 {
struct otg_transceiver otg;
- struct i2c_client *client;
+ struct i2c_client client;
void (*i2c_release)(struct device *dev);
+ int irq;
+ int irq_type;
+
u32 last_otg_ctrl;
unsigned working:1;
/*-------------------------------------------------------------------------*/
-#if defined(CONFIG_MACH_OMAP_H2) || \
- defined(CONFIG_MACH_OMAP_H3)
+#ifdef CONFIG_MACH_OMAP_H2
/* board-specific PM hooks */
+#include <asm/gpio.h>
+#include <asm/arch/mux.h>
+#include <asm/mach-types.h>
+
#if defined(CONFIG_TPS65010) || defined(CONFIG_TPS65010_MODULE)
}
-#else
-
-static void enable_vbus_draw(struct isp1301 *isp, unsigned mA)
+/* products will deliver OTG messages with LEDs, GUI, etc */
+static inline void notresponding(struct isp1301 *isp)
{
- pr_debug("%s UNIMPL\n", __FUNCTION__);
+ printk(KERN_NOTICE "OTG device not responding.\n");
}
-static void enable_vbus_source(struct isp1301 *isp)
-{
- pr_debug("%s UNIMPL\n", __FUNCTION__);
-}
#endif
/*-------------------------------------------------------------------------*/
-/* products will deliver OTG messages with LEDs, GUI, etc */
-static inline void notresponding(struct isp1301 *isp)
-{
- printk(KERN_NOTICE "OTG device not responding.\n");
-}
+/* only two addresses possible */
+#define ISP_BASE 0x2c
+static unsigned short normal_i2c[] = {
+ ISP_BASE, ISP_BASE + 1,
+ I2C_CLIENT_END };
-/*-------------------------------------------------------------------------*/
+I2C_CLIENT_INSMOD;
-/* only two addresses possible */
static struct i2c_driver isp1301_driver;
/* smbus apis are used for portability */
static inline u8
isp1301_get_u8(struct isp1301 *isp, u8 reg)
{
- return i2c_smbus_read_byte_data(isp->client, reg + 0);
+ return i2c_smbus_read_byte_data(&isp->client, reg + 0);
}
static inline int
isp1301_get_u16(struct isp1301 *isp, u8 reg)
{
- return i2c_smbus_read_word_data(isp->client, reg);
+ return i2c_smbus_read_word_data(&isp->client, reg);
}
static inline int
isp1301_set_bits(struct isp1301 *isp, u8 reg, u8 bits)
{
- return i2c_smbus_write_byte_data(isp->client, reg + 0, bits);
+ return i2c_smbus_write_byte_data(&isp->client, reg + 0, bits);
}
static inline int
isp1301_clear_bits(struct isp1301 *isp, u8 reg, u8 bits)
{
- return i2c_smbus_write_byte_data(isp->client, reg + 1, bits);
+ return i2c_smbus_write_byte_data(&isp->client, reg + 1, bits);
}
/*-------------------------------------------------------------------------*/
int status;
if (isp && !test_and_set_bit(work, &isp->todo)) {
- (void) get_device(&isp->client->dev);
+ (void) get_device(&isp->client.dev);
status = schedule_work(&isp->work);
if (!status && !isp->working)
- dev_vdbg(&isp->client->dev,
+ dev_vdbg(&isp->client.dev,
"work item %d may be lost\n", work);
}
}
static void update_otg1(struct isp1301 *isp, u8 int_src)
{
u32 otg_ctrl;
- u8 int_id;
otg_ctrl = omap_readl(OTG_CTRL) & OTG_CTRL_MASK;
otg_ctrl &= ~OTG_XCEIV_INPUTS;
}
if (int_src & INTR_VBUS_VLD)
otg_ctrl |= OTG_VBUSVLD;
-
- int_id = isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE);
-
- if (int_id & INTR_ID_GND) { /* default-A */
+ if (int_src & INTR_ID_GND) { /* default-A */
if (isp->otg.state == OTG_STATE_B_IDLE
|| isp->otg.state == OTG_STATE_UNDEFINED) {
a_idle(isp, "init");
/* update the OTG controller state to match the isp1301; may
* trigger OPRT_CHG irqs for changes going to the isp1301.
*/
- update_otg1(isp, stat); // pass the actual interrupt latch status
+ update_otg1(isp, isp_stat);
update_otg2(isp, isp_bstat);
check_state(isp, __func__);
#endif
/* transfer state from otg engine to isp1301 */
if (test_and_clear_bit(WORK_UPDATE_ISP, &isp->todo)) {
otg_update_isp(isp);
- put_device(&isp->client->dev);
+ put_device(&isp->client.dev);
}
#endif
/* transfer state from isp1301 to otg engine */
u8 stat = isp1301_clear_latch(isp);
isp_update_otg(isp, stat);
- put_device(&isp->client->dev);
+ put_device(&isp->client.dev);
}
if (test_and_clear_bit(WORK_HOST_RESUME, &isp->todo)) {
}
host_resume(isp);
// mdelay(10);
- put_device(&isp->client->dev);
+ put_device(&isp->client.dev);
}
if (test_and_clear_bit(WORK_TIMER, &isp->todo)) {
if (!stop)
mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
#endif
- put_device(&isp->client->dev);
+ put_device(&isp->client.dev);
}
if (isp->todo)
- dev_vdbg(&isp->client->dev,
+ dev_vdbg(&isp->client.dev,
"work done, todo = 0x%lx\n",
isp->todo);
if (stop) {
- dev_dbg(&isp->client->dev, "stop\n");
+ dev_dbg(&isp->client.dev, "stop\n");
break;
}
} while (isp->todo);
static void isp1301_release(struct device *dev)
{
- struct i2c_client *client;
- struct isp1301 *isp;
+ struct isp1301 *isp;
- client = container_of(dev, struct i2c_client, dev);
- isp = i2c_get_clientdata(client);
+ isp = container_of(dev, struct isp1301, client.dev);
/* ugly -- i2c hijacks our memory hook to wait_for_completion() */
if (isp->i2c_release)
static struct isp1301 *the_transceiver;
-static int __exit isp1301_remove(struct i2c_client *client)
+static int isp1301_detach_client(struct i2c_client *i2c)
{
- struct isp1301 *isp = i2c_get_clientdata(client);
+ struct isp1301 *isp;
+
+ isp = container_of(i2c, struct isp1301, client);
isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0);
isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0);
-
- if (client->irq > 0)
- free_irq(client->irq, isp);
+ free_irq(isp->irq, isp);
#ifdef CONFIG_USB_OTG
otg_unbind(isp);
#endif
+ if (machine_is_omap_h2())
+ omap_free_gpio(2);
+
isp->timer.data = 0;
set_bit(WORK_STOP, &isp->todo);
del_timer_sync(&isp->timer);
flush_scheduled_work();
- put_device(&client->dev);
+ put_device(&i2c->dev);
the_transceiver = 0;
- return 0;
+ return i2c_detach_client(i2c);
}
/*-------------------------------------------------------------------------*/
isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
INTR_VBUS_VLD | INTR_SESS_VLD | INTR_ID_GND);
- dev_info(&isp->client->dev, "ready for dual-role USB ...\n");
+ dev_info(&isp->client.dev, "ready for dual-role USB ...\n");
return 0;
}
#ifdef CONFIG_USB_OTG
isp->otg.host = host;
- dev_dbg(&isp->client->dev, "registered host\n");
+ dev_dbg(&isp->client.dev, "registered host\n");
host_suspend(isp);
if (isp->otg.gadget)
return isp1301_otg_enable(isp);
power_up(isp);
- dev_info(&isp->client->dev, "A-Host sessions ok\n");
+ if (machine_is_omap_h2())
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
+
+ dev_info(&isp->client.dev, "A-Host sessions ok\n");
isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
INTR_ID_GND);
isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
return 0;
#else
- dev_dbg(&isp->client->dev, "host sessions not allowed\n");
+ dev_dbg(&isp->client.dev, "host sessions not allowed\n");
return -EINVAL;
#endif
#ifdef CONFIG_USB_OTG
isp->otg.gadget = gadget;
- dev_dbg(&isp->client->dev, "registered gadget\n");
+ dev_dbg(&isp->client.dev, "registered gadget\n");
/* gadget driver may be suspended until vbus_connect () */
if (isp->otg.host)
return isp1301_otg_enable(isp);
power_up(isp);
isp->otg.state = OTG_STATE_B_IDLE;
-// XXX h4 too?
- if (machine_is_omap_h2() || machine_is_omap_h3())
+ if (machine_is_omap_h2())
isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
- INTR_SESS_VLD | INTR_VBUS_VLD);
+ INTR_SESS_VLD);
isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
- INTR_VBUS_VLD | INTR_SESS_VLD);
- dev_info(&isp->client->dev, "B-Peripheral sessions ok\n");
+ INTR_VBUS_VLD);
+ dev_info(&isp->client.dev, "B-Peripheral sessions ok\n");
dump_regs(isp, __func__);
/* If this has a Mini-AB connector, this mode is highly
return 0;
#else
- dev_dbg(&isp->client->dev, "peripheral sessions not allowed\n");
+ dev_dbg(&isp->client.dev, "peripheral sessions not allowed\n");
return -EINVAL;
#endif
}
* So do this part as early as possible...
*/
switch (isp->otg.state) {
- case OTG_STATE_B_PERIPHERAL:
- isp->otg.state = OTG_STATE_B_WAIT_ACON;
- isp1301_defer_work(isp, WORK_UPDATE_ISP);
- break;
case OTG_STATE_B_HOST:
isp->otg.state = OTG_STATE_B_PERIPHERAL;
/* caller will suspend next */
/*-------------------------------------------------------------------------*/
/* no error returns, they'd just make bus scanning stop */
-static int __init isp1301_probe(struct i2c_client *client)
+static int isp1301_probe(struct i2c_adapter *bus, int address, int kind)
{
int status;
struct isp1301 *isp;
+ struct i2c_client *i2c;
if (the_transceiver)
return 0;
init_timer(&isp->timer);
isp->timer.function = isp1301_timer;
isp->timer.data = (unsigned long) isp;
- isp->client = client;
+
+ isp->irq = -1;
+ isp->client.addr = address;
+ i2c_set_clientdata(&isp->client, isp);
+ isp->client.adapter = bus;
+ isp->client.driver = &isp1301_driver;
+ strlcpy(isp->client.name, DRIVER_NAME, I2C_NAME_SIZE);
+ i2c = &isp->client;
/* if this is a true probe, verify the chip ... */
- status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
- if (status != I2C_VENDOR_ID_PHILIPS) {
- dev_dbg(&client->dev, "not philips id: %d\n",
- status);
- goto fail1;
- }
- status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
- if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
- dev_dbg(&client->dev, "not isp1301, %d\n",
- status);
- goto fail1;
+ if (kind < 0) {
+ status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
+ if (status != I2C_VENDOR_ID_PHILIPS) {
+ dev_dbg(&bus->dev, "addr %d not philips id: %d\n",
+ address, status);
+ goto fail1;
+ }
+ status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
+ if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
+ dev_dbg(&bus->dev, "%d not isp1301, %d\n",
+ address, status);
+ goto fail1;
+ }
}
+ status = i2c_attach_client(i2c);
if (status < 0) {
- dev_dbg(&client->dev, "can't attach %s to device, err %d\n",
- DRIVER_NAME, status);
+ dev_dbg(&bus->dev, "can't attach %s to device %d, err %d\n",
+ DRIVER_NAME, address, status);
fail1:
kfree(isp);
return 0;
}
- isp->i2c_release = client->dev.release;
- client->dev.release = isp1301_release;
+ isp->i2c_release = i2c->dev.release;
+ i2c->dev.release = isp1301_release;
/* initial development used chiprev 2.00 */
- status = i2c_smbus_read_word_data(client, ISP1301_BCD_DEVICE);
- dev_info(&client->dev, "chiprev %x.%02x, driver " DRIVER_VERSION "\n",
+ status = i2c_smbus_read_word_data(i2c, ISP1301_BCD_DEVICE);
+ dev_info(&i2c->dev, "chiprev %x.%02x, driver " DRIVER_VERSION "\n",
status >> 8, status & 0xff);
/* make like power-on reset */
#ifdef CONFIG_USB_OTG
status = otg_bind(isp);
if (status < 0) {
- dev_dbg(&client->dev, "can't bind OTG\n");
+ dev_dbg(&i2c->dev, "can't bind OTG\n");
goto fail2;
}
#endif
- status = request_irq(client->irq, isp1301_irq,
- IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_FALLING,
- DRIVER_NAME, isp);
+ if (machine_is_omap_h2()) {
+ /* full speed signaling by default */
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1,
+ MC1_SPEED_REG);
+ isp1301_set_bits(isp, ISP1301_MODE_CONTROL_2,
+ MC2_SPD_SUSP_CTRL);
+
+ /* IRQ wired at M14 */
+ omap_cfg_reg(M14_1510_GPIO2);
+ isp->irq = OMAP_GPIO_IRQ(2);
+ if (gpio_request(2, "isp1301") == 0)
+ gpio_direction_input(2);
+ isp->irq_type = IRQF_TRIGGER_FALLING;
+ }
+
+ isp->irq_type |= IRQF_SAMPLE_RANDOM;
+ status = request_irq(isp->irq, isp1301_irq,
+ isp->irq_type, DRIVER_NAME, isp);
if (status < 0) {
- dev_dbg(&client->dev, "can't get IRQ %d, err %d\n",
- client->irq, status);
+ dev_dbg(&i2c->dev, "can't get IRQ %d, err %d\n",
+ isp->irq, status);
#ifdef CONFIG_USB_OTG
fail2:
#endif
- i2c_detach_client(client);
+ i2c_detach_client(i2c);
goto fail1;
}
- isp->otg.dev = &client->dev;
+ isp->otg.dev = &isp->client.dev;
isp->otg.label = DRIVER_NAME;
isp->otg.set_host = isp1301_set_host,
update_otg1(isp, isp1301_get_u8(isp, ISP1301_INTERRUPT_SOURCE));
update_otg2(isp, isp1301_get_u8(isp, ISP1301_OTG_STATUS));
#endif
+
dump_regs(isp, __func__);
#ifdef VERBOSE
mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
- dev_dbg(&client->dev, "scheduled timer, %d min\n", TIMER_MINUTES);
+ dev_dbg(&i2c->dev, "scheduled timer, %d min\n", TIMER_MINUTES);
#endif
status = otg_set_transceiver(&isp->otg);
if (status < 0)
- dev_err(&client->dev, "can't register transceiver, %d\n",
+ dev_err(&i2c->dev, "can't register transceiver, %d\n",
status);
return 0;
}
+static int isp1301_scan_bus(struct i2c_adapter *bus)
+{
+ if (!i2c_check_functionality(bus, I2C_FUNC_SMBUS_BYTE_DATA
+ | I2C_FUNC_SMBUS_READ_WORD_DATA))
+ return -EINVAL;
+ return i2c_probe(bus, &addr_data, isp1301_probe);
+}
+
static struct i2c_driver isp1301_driver = {
.driver = {
.name = "isp1301_omap",
},
- .probe = isp1301_probe,
- .remove = __exit_p(isp1301_remove),
+ .attach_adapter = isp1301_scan_bus,
+ .detach_client = isp1301_detach_client,
};
/*-------------------------------------------------------------------------*/
projects / linux-2.6-omap-h63xx.git / commitdiff