static int solo_i2c_master_xfer(struct i2c_adapter *adap,
struct i2c_msg msgs[], int num)
{
struct solo_dev *solo_dev = adap->algo_data;
unsigned long timeout;
int ret;
int i;
DEFINE_WAIT(wait);
for (i = 0; i < SOLO_I2C_ADAPTERS; i++) {
if (&solo_dev->i2c_adap[i] == adap)
break;
}
if (i == SOLO_I2C_ADAPTERS)
return num; /* XXX Right return value for failure? */
mutex_lock(&solo_dev->i2c_mutex);
solo_dev->i2c_id = i;
solo_dev->i2c_msg = msgs;
solo_dev->i2c_msg_num = num;
solo_dev->i2c_msg_ptr = 0;
solo_reg_write(solo_dev, SOLO_IIC_CTRL, 0);
solo_irq_on(solo_dev, SOLO_IRQ_IIC);
solo_i2c_start(solo_dev);
timeout = HZ / 2;
for (;;) {
prepare_to_wait(&solo_dev->i2c_wait, &wait,
TASK_INTERRUPTIBLE);
if (solo_dev->i2c_state == IIC_STATE_STOP)
break;
timeout = schedule_timeout(timeout);
if (!timeout)
break;
if (signal_pending(current))
break;
}
finish_wait(&solo_dev->i2c_wait, &wait);
ret = num - solo_dev->i2c_msg_num;
solo_dev->i2c_state = IIC_STATE_IDLE;
solo_dev->i2c_id = -1;
mutex_unlock(&solo_dev->i2c_mutex);
return ret;
}
static int solo_start_thread(struct solo_dev *solo_dev)
{
int ret = 0;
solo_dev->kthread = kthread_run(solo_thread, solo_dev, SOLO6X10_NAME "_disp");
if (IS_ERR(solo_dev->kthread)) {
ret = PTR_ERR(solo_dev->kthread);
solo_dev->kthread = NULL;
return ret;
}
solo_irq_on(solo_dev, SOLO_IRQ_VIDEO_IN);
return ret;
}
static int solo_start_thread(struct solo_filehandle *fh)
{
int ret = 0;
if (atomic_inc_return(&fh->solo_dev->disp_users) == 1)
solo_irq_on(fh->solo_dev, SOLO_IRQ_VIDEO_IN);
fh->kthread = kthread_run(solo_thread, fh, SOLO6X10_NAME "_disp");
if (IS_ERR(fh->kthread)) {
ret = PTR_ERR(fh->kthread);
fh->kthread = NULL;
}
return ret;
}
static int __devinit solo6010_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct solo6010_dev *solo_dev;
int ret;
u8 chip_id;
solo_dev = kzalloc(sizeof(*solo_dev), GFP_KERNEL);
if (solo_dev == NULL)
return -ENOMEM;
if (id->driver_data == SOLO_DEV_6010)
dev_info(&pdev->dev, "Probing Softlogic 6010\n");
else
dev_info(&pdev->dev, "Probing Softlogic 6110\n");
solo_dev->type = id->driver_data;
solo_dev->pdev = pdev;
spin_lock_init(&solo_dev->reg_io_lock);
pci_set_drvdata(pdev, solo_dev);
/* Only for during init */
solo_dev->p2m_jiffies = msecs_to_jiffies(100);
if ((ret = pci_enable_device(pdev)))
goto fail_probe;
pci_set_master(pdev);
/* RETRY/TRDY Timeout disabled */
pci_write_config_byte(pdev, 0x40, 0x00);
pci_write_config_byte(pdev, 0x41, 0x00);
if ((ret = pci_request_regions(pdev, SOLO6010_NAME)))
goto fail_probe;
if ((solo_dev->reg_base = pci_ioremap_bar(pdev, 0)) == NULL) {
ret = -ENOMEM;
goto fail_probe;
}
chip_id = solo_reg_read(solo_dev, SOLO_CHIP_OPTION) &
SOLO_CHIP_ID_MASK;
switch (chip_id) {
case 7:
solo_dev->nr_chans = 16;
solo_dev->nr_ext = 5;
break;
case 6:
solo_dev->nr_chans = 8;
solo_dev->nr_ext = 2;
break;
default:
dev_warn(&pdev->dev, "Invalid chip_id 0x%02x, "
"defaulting to 4 channels\n",
chip_id);
case 5:
solo_dev->nr_chans = 4;
solo_dev->nr_ext = 1;
}
/* Disable all interrupts to start */
solo_irq_off(solo_dev, ~0);
/* Initial global settings */
if (solo_dev->type == SOLO_DEV_6010) {
solo_dev->clock_mhz = 108;
solo_dev->sys_config = SOLO_SYS_CFG_SDRAM64BIT
| SOLO_SYS_CFG_INPUTDIV(25)
| SOLO_SYS_CFG_FEEDBACKDIV(solo_dev->clock_mhz * 2 - 2)
| SOLO_SYS_CFG_OUTDIV(3);
solo_reg_write(solo_dev, SOLO_SYS_CFG, solo_dev->sys_config);
} else {
u32 divq, divf;
solo_dev->clock_mhz = 135;
if (solo_dev->clock_mhz < 125) {
divq = 3;
divf = (solo_dev->clock_mhz * 4) / 3 - 1;
} else {
divq = 2;
divf = (solo_dev->clock_mhz * 2) / 3 - 1;
}
solo_reg_write(solo_dev, SOLO_PLL_CONFIG,
(1 << 20) | /* PLL_RANGE */
(8 << 15) | /* PLL_DIVR */
(divq << 12 ) |
(divf << 4 ) |
(1 << 1) /* PLL_FSEN */ );
solo_dev->sys_config = SOLO_SYS_CFG_SDRAM64BIT;
}
solo_reg_write(solo_dev, SOLO_SYS_CFG, solo_dev->sys_config);
solo_reg_write(solo_dev, SOLO_TIMER_CLOCK_NUM,
solo_dev->clock_mhz - 1);
/* PLL locking time of 1ms */
mdelay(1);
ret = request_irq(pdev->irq, solo6010_isr, IRQF_SHARED, SOLO6010_NAME,
solo_dev);
if (ret)
goto fail_probe;
/* Handle this from the start */
solo_irq_on(solo_dev, SOLO_IRQ_PCI_ERR);
if ((ret = solo_i2c_init(solo_dev)))
goto fail_probe;
/* Setup the DMA engine */
solo_reg_write(solo_dev, SOLO_DMA_CTRL,
SOLO_DMA_CTRL_REFRESH_CYCLE(1) |
SOLO_DMA_CTRL_SDRAM_SIZE(2) |
SOLO_DMA_CTRL_SDRAM_CLK_INVERT |
SOLO_DMA_CTRL_READ_CLK_SELECT |
SOLO_DMA_CTRL_LATENCY(1));
/* Undocumented crap */
solo_reg_write(solo_dev, SOLO_DMA_CTRL1,
solo_dev->type == SOLO_DEV_6010 ? 0x100 : 0x300);
if (solo_dev->type != SOLO_DEV_6010) {
solo_dev->usec_lsb = 0x3f;
solo_set_time(solo_dev);
}
/* Disable watchdog */
solo_reg_write(solo_dev, SOLO_WATCHDOG, 0);
/* Initialize sub components */
if ((ret = solo_p2m_init(solo_dev)))
goto fail_probe;
if ((ret = solo_disp_init(solo_dev)))
goto fail_probe;
if ((ret = solo_gpio_init(solo_dev)))
goto fail_probe;
if ((ret = solo_tw28_init(solo_dev)))
goto fail_probe;
if ((ret = solo_v4l2_init(solo_dev, video_nr)))
goto fail_probe;
if ((ret = solo_enc_init(solo_dev)))
goto fail_probe;
if ((ret = solo_enc_v4l2_init(solo_dev, video_nr)))
goto fail_probe;
if ((ret = solo_g723_init(solo_dev)))
goto fail_probe;
if ((ret = solo_sysfs_init(solo_dev)))
goto fail_probe;
/* Now that init is over, set this lower */
solo_dev->p2m_jiffies = msecs_to_jiffies(20);
return 0;
fail_probe:
free_solo_dev(solo_dev);
return ret;
}
static int __devinit solo_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct solo_dev *solo_dev;
int ret;
int sdram;
u8 chip_id;
u32 reg;
solo_dev = kzalloc(sizeof(*solo_dev), GFP_KERNEL);
if (solo_dev == NULL)
return -ENOMEM;
solo_dev->pdev = pdev;
spin_lock_init(&solo_dev->reg_io_lock);
pci_set_drvdata(pdev, solo_dev);
ret = pci_enable_device(pdev);
if (ret)
goto fail_probe;
pci_set_master(pdev);
ret = pci_request_regions(pdev, SOLO6X10_NAME);
if (ret)
goto fail_probe;
solo_dev->reg_base = pci_ioremap_bar(pdev, 0);
if (solo_dev->reg_base == NULL) {
ret = -ENOMEM;
goto fail_probe;
}
chip_id = solo_reg_read(solo_dev, SOLO_CHIP_OPTION) &
SOLO_CHIP_ID_MASK;
switch (chip_id) {
case 7:
solo_dev->nr_chans = 16;
solo_dev->nr_ext = 5;
break;
case 6:
solo_dev->nr_chans = 8;
solo_dev->nr_ext = 2;
break;
default:
dev_warn(&pdev->dev, "Invalid chip_id 0x%02x, "
"defaulting to 4 channels\n",
chip_id);
case 5:
solo_dev->nr_chans = 4;
solo_dev->nr_ext = 1;
}
solo_dev->flags = id->driver_data;
/* Disable all interrupts to start */
solo_irq_off(solo_dev, ~0);
reg = SOLO_SYS_CFG_SDRAM64BIT;
/* Initial global settings */
if (!(solo_dev->flags & FLAGS_6110))
reg |= SOLO6010_SYS_CFG_INPUTDIV(25) |
SOLO6010_SYS_CFG_FEEDBACKDIV((SOLO_CLOCK_MHZ * 2) - 2) |
SOLO6010_SYS_CFG_OUTDIV(3);
solo_reg_write(solo_dev, SOLO_SYS_CFG, reg);
if (solo_dev->flags & FLAGS_6110) {
u32 sys_clock_MHz = SOLO_CLOCK_MHZ;
u32 pll_DIVQ;
u32 pll_DIVF;
if (sys_clock_MHz < 125) {
pll_DIVQ = 3;
pll_DIVF = (sys_clock_MHz * 4) / 3;
} else {
pll_DIVQ = 2;
pll_DIVF = (sys_clock_MHz * 2) / 3;
}
solo_reg_write(solo_dev, SOLO6110_PLL_CONFIG,
SOLO6110_PLL_RANGE_5_10MHZ |
SOLO6110_PLL_DIVR(9) |
SOLO6110_PLL_DIVQ_EXP(pll_DIVQ) |
SOLO6110_PLL_DIVF(pll_DIVF) | SOLO6110_PLL_FSEN);
mdelay(1); /* PLL Locking time (1ms) */
solo_reg_write(solo_dev, SOLO_DMA_CTRL1, 3 << 8); /* ? */
} else
solo_reg_write(solo_dev, SOLO_DMA_CTRL1, 1 << 8); /* ? */
solo_reg_write(solo_dev, SOLO_TIMER_CLOCK_NUM, SOLO_CLOCK_MHZ - 1);
/* PLL locking time of 1ms */
mdelay(1);
ret = request_irq(pdev->irq, solo_isr, IRQF_SHARED, SOLO6X10_NAME,
solo_dev);
if (ret)
goto fail_probe;
/* Handle this from the start */
solo_irq_on(solo_dev, SOLO_IRQ_PCI_ERR);
ret = solo_i2c_init(solo_dev);
if (ret)
goto fail_probe;
/* Setup the DMA engine */
sdram = (solo_dev->nr_chans >= 8) ? 2 : 1;
solo_reg_write(solo_dev, SOLO_DMA_CTRL,
SOLO_DMA_CTRL_REFRESH_CYCLE(1) |
SOLO_DMA_CTRL_SDRAM_SIZE(sdram) |
SOLO_DMA_CTRL_SDRAM_CLK_INVERT |
SOLO_DMA_CTRL_READ_CLK_SELECT |
SOLO_DMA_CTRL_LATENCY(1));
ret = solo_p2m_init(solo_dev);
if (ret)
goto fail_probe;
ret = solo_disp_init(solo_dev);
if (ret)
goto fail_probe;
ret = solo_gpio_init(solo_dev);
if (ret)
goto fail_probe;
ret = solo_tw28_init(solo_dev);
if (ret)
goto fail_probe;
ret = solo_v4l2_init(solo_dev);
if (ret)
goto fail_probe;
ret = solo_enc_init(solo_dev);
if (ret)
goto fail_probe;
ret = solo_enc_v4l2_init(solo_dev);
if (ret)
goto fail_probe;
ret = solo_g723_init(solo_dev);
if (ret)
goto fail_probe;
return 0;
fail_probe:
free_solo_dev(solo_dev);
return ret;
}