/*
- tm6000-i2c.c - driver for TM5600/TM6000 USB video capture devices
+ tm6000-i2c.c - driver for TM5600/TM6000/TM6010 USB video capture devices
Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
printk(KERN_DEBUG "%s at %s: " fmt, \
dev->name, __FUNCTION__ , ##args); } while (0)
+static int tm6000_i2c_send_regs(struct tm6000_core *dev, unsigned char addr,
+ __u8 reg, char *buf, int len)
+{
+ int rc;
+ unsigned int tsleep;
+ unsigned int i2c_packet_limit = 16;
+
+ if (dev->dev_type == TM6010)
+ i2c_packet_limit = 64;
+
+ if (!buf)
+ return -1;
+
+ if (len < 1 || len > i2c_packet_limit) {
+ printk(KERN_ERR "Incorrect length of i2c packet = %d, limit set to %d\n",
+ len, i2c_packet_limit);
+ return -1;
+ }
+
+ /* capture mutex */
+ rc = tm6000_read_write_usb(dev, USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, REQ_16_SET_GET_I2C_WR1_RDN,
+ addr | reg << 8, 0, buf, len);
+
+ if (rc < 0) {
+ /* release mutex */
+ return rc;
+ }
+
+ /* Calculate delay time, 14000us for 64 bytes */
+ tsleep = ((len * 200) + 200 + 1000) / 1000;
+ msleep(tsleep);
+
+ /* release mutex */
+ return rc;
+}
+
+/* Generic read - doesn't work fine with 16bit registers */
+static int tm6000_i2c_recv_regs(struct tm6000_core *dev, unsigned char addr,
+ __u8 reg, char *buf, int len)
+{
+ int rc;
+ u8 b[2];
+ unsigned int i2c_packet_limit = 16;
+
+ if (dev->dev_type == TM6010)
+ i2c_packet_limit = 64;
+
+ if (!buf)
+ return -1;
+
+ if (len < 1 || len > i2c_packet_limit) {
+ printk(KERN_ERR "Incorrect length of i2c packet = %d, limit set to %d\n",
+ len, i2c_packet_limit);
+ return -1;
+ }
+
+ /* capture mutex */
+ if ((dev->caps.has_zl10353) && (dev->demod_addr << 1 == addr) && (reg % 2 == 0)) {
+ /*
+ * Workaround an I2C bug when reading from zl10353
+ */
+ reg -= 1;
+ len += 1;
+
+ rc = tm6000_read_write_usb(dev, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ REQ_16_SET_GET_I2C_WR1_RDN, addr | reg << 8, 0, b, len);
+
+ *buf = b[1];
+ } else {
+ rc = tm6000_read_write_usb(dev, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ REQ_16_SET_GET_I2C_WR1_RDN, addr | reg << 8, 0, buf, len);
+ }
+
+ /* release mutex */
+ return rc;
+}
+
+/*
+ * read from a 16bit register
+ * for example xc2028, xc3028 or xc3028L
+ */
+static int tm6000_i2c_recv_regs16(struct tm6000_core *dev, unsigned char addr,
+ __u16 reg, char *buf, int len)
+{
+ int rc;
+ unsigned char ureg;
+
+ if (!buf || len != 2)
+ return -1;
+
+ /* capture mutex */
+ if (dev->dev_type == TM6010) {
+ ureg = reg & 0xFF;
+ rc = tm6000_read_write_usb(dev, USB_DIR_OUT | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, REQ_16_SET_GET_I2C_WR1_RDN,
+ addr | (reg & 0xFF00), 0, &ureg, 1);
+
+ if (rc < 0) {
+ /* release mutex */
+ return rc;
+ }
+
+ msleep(1400 / 1000);
+ rc = tm6000_read_write_usb(dev, USB_DIR_IN | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, REQ_35_AFTEK_TUNER_READ,
+ reg, 0, buf, len);
+ } else {
+ rc = tm6000_read_write_usb(dev, USB_DIR_IN | USB_TYPE_VENDOR |
+ USB_RECIP_DEVICE, REQ_14_SET_GET_I2C_WR2_RDN,
+ addr, reg, buf, len);
+ }
+
+ /* release mutex */
+ return rc;
+}
+
static int tm6000_i2c_xfer(struct i2c_adapter *i2c_adap,
struct i2c_msg msgs[], int num)
{
i2c_dprintk(2, "; joined to read %s len=%d:",
i == num - 2 ? "stop" : "nonstop",
msgs[i + 1].len);
- rc = tm6000_read_write_usb (dev,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- msgs[i].len == 1 ? REQ_16_SET_GET_I2C_WR1_RDN
- : REQ_14_SET_GET_I2C_WR2_RDN,
- addr | msgs[i].buf[0] << 8,
- msgs[i].len == 1 ? 0 : msgs[i].buf[1],
- msgs[i + 1].buf, msgs[i + 1].len);
+
+ if (msgs[i].len == 2) {
+ rc = tm6000_i2c_recv_regs16(dev, addr,
+ msgs[i].buf[0] << 8 | msgs[i].buf[1],
+ msgs[i + 1].buf, msgs[i + 1].len);
+ } else {
+ rc = tm6000_i2c_recv_regs(dev, addr, msgs[i].buf[0],
+ msgs[i + 1].buf, msgs[i + 1].len);
+ }
+
i++;
+
+ if (addr == dev->tuner_addr << 1) {
+ tm6000_set_reg(dev, REQ_50_SET_START, 0, 0);
+ tm6000_set_reg(dev, REQ_51_SET_STOP, 0, 0);
+ }
if (i2c_debug >= 2)
for (byte = 0; byte < msgs[i].len; byte++)
printk(" %02x", msgs[i].buf[byte]);
if (i2c_debug >= 2)
for (byte = 0; byte < msgs[i].len; byte++)
printk(" %02x", msgs[i].buf[byte]);
- rc = tm6000_read_write_usb(dev,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- REQ_16_SET_GET_I2C_WR1_RDN,
- addr | msgs[i].buf[0] << 8, 0,
+ rc = tm6000_i2c_send_regs(dev, addr, msgs[i].buf[0],
msgs[i].buf + 1, msgs[i].len - 1);
+
+ if (addr == dev->tuner_addr << 1) {
+ tm6000_set_reg(dev, REQ_50_SET_START, 0, 0);
+ tm6000_set_reg(dev, REQ_51_SET_STOP, 0, 0);
+ }
}
if (i2c_debug >= 2)
printk("\n");
bytes[16] = '\0';
for (i = 0; i < len; ) {
*p = i;
- rc = tm6000_read_write_usb (dev,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- REQ_16_SET_GET_I2C_WR1_RDN, 0xa0 | i<<8, 0, p, 1);
+ rc = tm6000_i2c_recv_regs(dev, 0xa0, i, p, 1);
if (rc < 1) {
if (p == eedata)
goto noeeprom;
return I2C_FUNC_SMBUS_EMUL;
}
-#ifndef I2C_PEC
-static void inc_use(struct i2c_adapter *adap)
-{
- MOD_INC_USE_COUNT;
-}
-
-static void dec_use(struct i2c_adapter *adap)
-{
- MOD_DEC_USE_COUNT;
-}
-#endif
-
#define mass_write(addr, reg, data...) \
{ const static u8 _val[] = data; \
rc=tm6000_read_write_usb(dev,USB_DIR_OUT | USB_TYPE_VENDOR, \
msleep (10); \
}
-/* Tuner callback to provide the proper gpio changes needed for xc2028 */
-
-static int tm6000_tuner_callback(void *ptr, int command, int arg)
-{
- int rc=0;
- struct tm6000_core *dev = ptr;
-
- if (dev->tuner_type!=TUNER_XC2028)
- return 0;
-
- switch (command) {
- case XC2028_RESET_CLK:
- tm6000_set_reg (dev, REQ_04_EN_DISABLE_MCU_INT,
- 0x02, arg);
- msleep(10);
- rc=tm6000_set_reg (dev, REQ_03_SET_GET_MCU_PIN,
- TM6000_GPIO_CLK, 0);
- if (rc<0)
- return rc;
- msleep(10);
- rc=tm6000_set_reg (dev, REQ_03_SET_GET_MCU_PIN,
- TM6000_GPIO_CLK, 1);
- break;
- case XC2028_TUNER_RESET:
- /* Reset codes during load firmware */
- switch (arg) {
- case 0:
- tm6000_set_reg (dev, REQ_03_SET_GET_MCU_PIN,
- dev->tuner_reset_gpio, 0x00);
- msleep(130);
- tm6000_set_reg (dev, REQ_03_SET_GET_MCU_PIN,
- dev->tuner_reset_gpio, 0x01);
- msleep(130);
- break;
- case 1:
- tm6000_set_reg (dev, REQ_04_EN_DISABLE_MCU_INT,
- 0x02, 0x01);
- msleep(10);
- break;
-
- case 2:
- rc=tm6000_set_reg (dev, REQ_03_SET_GET_MCU_PIN,
- TM6000_GPIO_CLK, 0);
- if (rc<0)
- return rc;
- msleep(100);
- rc=tm6000_set_reg (dev, REQ_03_SET_GET_MCU_PIN,
- TM6000_GPIO_CLK, 1);
- msleep(100);
- break;
- }
- }
- return (rc);
-}
-
-
static struct i2c_algorithm tm6000_algo = {
.master_xfer = tm6000_i2c_xfer,
.functionality = functionality,
};
static struct i2c_adapter tm6000_adap_template = {
-#ifdef I2C_PEC
.owner = THIS_MODULE,
-#else
- .inc_use = inc_use,
- .dec_use = dec_use,
-#endif
- .class = I2C_CLASS_TV_ANALOG,
+ .class = I2C_CLASS_TV_ANALOG | I2C_CLASS_TV_DIGITAL,
.name = "tm6000",
.id = I2C_HW_B_TM6000,
.algo = &tm6000_algo,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff