mirror of
https://github.com/LibreELEC/LibreELEC.tv.git
synced 2025-07-24 11:16:51 +00:00
Merge pull request #4823 from gdachs/redesigned-initialization
redesigned initialization
This commit is contained in:
Stephan Raue
commit
634f112b1f
@ -55,10 +55,10 @@ index 7a944cd..f74ec1f 100755
|
||||
#EXTRA_CFLAGS += -O2
|
||||
diff --git a/drivers/amlogic/hdmi/hdmi_tx/amlogic_cec.c b/drivers/amlogic/hdmi/hdmi_tx/amlogic_cec.c
|
||||
new file mode 100644
|
||||
index 0000000..9565115
|
||||
index 0000000..bd31aaa
|
||||
--- /dev/null
|
||||
+++ b/drivers/amlogic/hdmi/hdmi_tx/amlogic_cec.c
|
||||
@@ -0,0 +1,634 @@
|
||||
@@ -0,0 +1,596 @@
|
||||
+/* linux/drivers/amlogic/hdmi/hdmi_tx/amlogic_cec.c
|
||||
+ *
|
||||
+ * Copyright (c) 2016 Gerald Dachs
|
||||
@ -165,7 +165,6 @@ index 0000000..9565115
|
||||
+cec_global_info_t cec_global_info;
|
||||
+
|
||||
+static hdmitx_dev_t* hdmitx_device = NULL;
|
||||
+static struct workqueue_struct *cec_workqueue = NULL;
|
||||
+
|
||||
+static void amlogic_cec_set_rx_state(enum cec_state state)
|
||||
+{
|
||||
@ -282,8 +281,6 @@ index 0000000..9565115
|
||||
+ unsigned long spin_flags;
|
||||
+ struct cec_rx_list *entry;
|
||||
+
|
||||
+ amlogic_cec_log_dbg("cec node init: enter\n");
|
||||
+
|
||||
+ cec_phy_addr = (((hdmitx_device->hdmi_info.vsdb_phy_addr.a) & 0xf) << 12)
|
||||
+ | (((hdmitx_device->hdmi_info.vsdb_phy_addr.b) & 0xf) << 8)
|
||||
+ | (((hdmitx_device->hdmi_info.vsdb_phy_addr.c) & 0xf) << 4)
|
||||
@ -334,185 +331,6 @@ index 0000000..9565115
|
||||
+ amlogic_cec_log_dbg("cec node init: cec features ok !\n");
|
||||
+}
|
||||
+
|
||||
+static int amlogic_cec_open(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ int ret = 0;
|
||||
+
|
||||
+ if (atomic_read(&hdmi_on))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("do not allow multiple open for tvout cec\n");
|
||||
+ ret = -EBUSY;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ atomic_inc(&hdmi_on);
|
||||
+ }
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static int amlogic_cec_release(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ atomic_dec(&hdmi_on);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static ssize_t amlogic_cec_read(struct file *file, char __user *buffer,
|
||||
+ size_t count, loff_t *ppos)
|
||||
+{
|
||||
+ ssize_t retval;
|
||||
+ unsigned long spin_flags;
|
||||
+ struct cec_rx_list* entry = NULL;
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_read: enter\n");
|
||||
+
|
||||
+ if (wait_event_interruptible(cec_rx_struct.waitq,
|
||||
+ atomic_read(&cec_rx_struct.state) == STATE_DONE))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change\n");
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ spin_lock_irqsave(&cec_rx_struct.lock, spin_flags);
|
||||
+
|
||||
+ entry = list_first_entry_or_null(&cec_rx_struct.list, struct cec_rx_list, list);
|
||||
+
|
||||
+ if (entry == NULL || entry->size > count)
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("entry is NULL, or empty\n");
|
||||
+ retval = -1;
|
||||
+ goto error_exit;
|
||||
+ }
|
||||
+
|
||||
+ if (copy_to_user(buffer, entry->buffer, entry->size))
|
||||
+ {
|
||||
+ printk(KERN_ERR " copy_to_user() failed!\n");
|
||||
+
|
||||
+ retval = -EFAULT;
|
||||
+ goto error_exit;
|
||||
+ }
|
||||
+
|
||||
+ retval = entry->size;
|
||||
+
|
||||
+ amlogic_cec_set_rx_state(STATE_RX);
|
||||
+
|
||||
+error_exit:
|
||||
+ if (entry != NULL)
|
||||
+ {
|
||||
+ list_del(&entry->list);
|
||||
+ kfree(entry);
|
||||
+ }
|
||||
+
|
||||
+ spin_unlock_irqrestore(&cec_rx_struct.lock, spin_flags);
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_read: leave\n");
|
||||
+
|
||||
+ return retval;
|
||||
+}
|
||||
+
|
||||
+static ssize_t amlogic_cec_write(struct file *file, const char __user *buffer,
|
||||
+ size_t count, loff_t *ppos)
|
||||
+{
|
||||
+ char data[CEC_TX_BUFF_SIZE];
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_write: enter\n");
|
||||
+
|
||||
+ /* check data size */
|
||||
+ if (count > CEC_TX_BUFF_SIZE || count == 0)
|
||||
+ return -1;
|
||||
+
|
||||
+ if (copy_from_user(data, buffer, count))
|
||||
+ {
|
||||
+ printk(KERN_ERR " copy_from_user() failed!\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_set_tx_state(STATE_TX);
|
||||
+
|
||||
+ // just for the case that the first write starts
|
||||
+ // before the end of amlogic_cec_delayed_init()
|
||||
+ if (wait_event_interruptible(cec_tx_struct.waitq, hdmitx_device->cec_init_ready == 1))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change\n");
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_write_hw(data, count);
|
||||
+
|
||||
+ if (wait_event_interruptible_timeout(cec_tx_struct.waitq,
|
||||
+ atomic_read(&cec_tx_struct.state) != STATE_TX, 2 * HZ) <= 0)
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change, resetting\n");
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ amlogic_cec_write_reg(CEC_TX_MSG_CMD, TX_ABORT); // stop cec tx for hw retry.
|
||||
+ amlogic_cec_write_reg(CEC_TX_MSG_CMD, TX_NO_OP);
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ if (atomic_read(&cec_tx_struct.state) != STATE_DONE)
|
||||
+ {
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_write: leave\n");
|
||||
+
|
||||
+ return count;
|
||||
+}
|
||||
+
|
||||
+static long amlogic_cec_ioctl(struct file *file, unsigned int cmd,
|
||||
+ unsigned long arg)
|
||||
+{
|
||||
+ unsigned char logical_addr;
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: enter\n");
|
||||
+
|
||||
+ switch(cmd) {
|
||||
+ case CEC_IOC_SETLADDR:
|
||||
+ if (get_user(logical_addr, (unsigned char __user *)arg))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Failed to get logical addr from user\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_write_reg(CEC_LOGICAL_ADDR0, (0x1 << 4) | logical_addr);
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: Set logical address: %d\n", logical_addr);
|
||||
+ return 0;
|
||||
+
|
||||
+ case CEC_IOC_GETPADDR:
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: return physical address 0x%x\n", aml_read_reg32(P_AO_DEBUG_REG1));
|
||||
+ return aml_read_reg32(P_AO_DEBUG_REG1);
|
||||
+ }
|
||||
+
|
||||
+ return -EINVAL;
|
||||
+}
|
||||
+
|
||||
+static u32 amlogic_cec_poll(struct file *file, poll_table *wait)
|
||||
+{
|
||||
+ poll_wait(file, &cec_rx_struct.waitq, wait);
|
||||
+
|
||||
+ if (atomic_read(&cec_rx_struct.state) == STATE_DONE)
|
||||
+ {
|
||||
+ return POLLIN | POLLRDNORM;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct file_operations cec_fops = {
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .open = amlogic_cec_open,
|
||||
+ .release = amlogic_cec_release,
|
||||
+ .read = amlogic_cec_read,
|
||||
+ .write = amlogic_cec_write,
|
||||
+ .unlocked_ioctl = amlogic_cec_ioctl,
|
||||
+ .poll = amlogic_cec_poll,
|
||||
+};
|
||||
+
|
||||
+static struct miscdevice cec_misc_device = {
|
||||
+ .minor = CEC_MINOR,
|
||||
+ .name = "AmlogicCEC",
|
||||
+ .fops = &cec_fops,
|
||||
+};
|
||||
+
|
||||
+static irqreturn_t amlogic_cec_irq_handler(int irq, void *dummy)
|
||||
+{
|
||||
+ unsigned long spin_flags;
|
||||
@ -520,8 +338,6 @@ index 0000000..9565115
|
||||
+ unsigned int tx_msg_state;
|
||||
+ unsigned int rx_msg_state;
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_irq_handler: enter\n");
|
||||
+
|
||||
+ udelay(100); //Delay execution a little. This fixes an issue when HDMI CEC stops working after a while.
|
||||
+
|
||||
+ tx_msg_state = amlogic_cec_read_reg(CEC_TX_MSG_STATUS);
|
||||
@ -573,52 +389,233 @@ index 0000000..9565115
|
||||
+ wake_up_interruptible(&cec_rx_struct.waitq);
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_irq_handler: leave\n");
|
||||
+
|
||||
+ return IRQ_HANDLED;
|
||||
+}
|
||||
+
|
||||
+static void amlogic_cec_delayed_init(struct work_struct *work)
|
||||
+static int amlogic_cec_open(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ hdmitx_dev_t* hdmitx_device = (hdmitx_dev_t*)container_of(work, hdmitx_dev_t, cec_work);
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_delayed_init: enter\n");
|
||||
+
|
||||
+ msleep_interruptible(15000);
|
||||
+ int ret = 0;
|
||||
+
|
||||
+ if (atomic_read(&hdmi_on))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("do not allow multiple open for tvout cec\n");
|
||||
+ ret = -EBUSY;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ atomic_inc(&hdmi_on);
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ cec_gpi_init();
|
||||
+ if (request_irq(INT_HDMI_CEC, &amlogic_cec_irq_handler,
|
||||
+ IRQF_SHARED, "amhdmitx-cec",(void *)hdmitx_device))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Can't register IRQ %d\n",INT_HDMI_CEC);
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+ if (request_irq(INT_AO_CEC, &amlogic_cec_irq_handler,
|
||||
+ IRQF_SHARED, "amhdmitx-aocec",(void *)hdmitx_device))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Can't register IRQ %d\n",INT_HDMI_CEC);
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+#endif
|
||||
+
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ aml_set_reg32_bits(P_PERIPHS_PIN_MUX_1, 1, 25, 1);
|
||||
+ // Clear CEC Int. state and set CEC Int. mask
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_STAT_CLR, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_STAT_CLR) | (1 << 23)); // Clear the interrupt
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK) | (1 << 23)); // Enable the hdmi cec interrupt
|
||||
+ cec_gpi_init();
|
||||
+#endif
|
||||
+
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ aml_set_reg32_bits(P_PERIPHS_PIN_MUX_1, 1, 25, 1);
|
||||
+ // Clear CEC Int. state and set CEC Int. mask
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_STAT_CLR, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_STAT_CLR) | (1 << 23)); // Clear the interrupt
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK) | (1 << 23)); // Enable the hdmi cec interrupt
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+#if 1 // Please match with H/W cec config
|
||||
+// GPIOAO_12
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PIN_MUX_REG, 0, 14, 1); // bit[14]: AO_PWM_C pinmux //0xc8100014
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PULL_UP_REG, 1, 12, 1); // bit[12]: enable AO_12 internal pull-up //0xc810002c
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PIN_MUX_REG, 1, 17, 1); // bit[17]: AO_CEC pinmux //0xc8100014
|
||||
+ ao_cec_init();
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PIN_MUX_REG, 0, 14, 1); // bit[14]: AO_PWM_C pinmux //0xc8100014
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PULL_UP_REG, 1, 12, 1); // bit[12]: enable AO_12 internal pull-up //0xc810002c
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PIN_MUX_REG, 1, 17, 1); // bit[17]: AO_CEC pinmux //0xc8100014
|
||||
+ ao_cec_init();
|
||||
+#else
|
||||
+// GPIOH_3
|
||||
+ aml_set_reg32_bits(P_PAD_PULL_UP_EN_REG1, 0, 19, 1); // disable gpioh_3 internal pull-up
|
||||
+ aml_set_reg32_bits(P_PERIPHS_PIN_MUX_1, 1, 23, 1); // gpioh_3 cec pinmux
|
||||
+ aml_set_reg32_bits(P_PAD_PULL_UP_EN_REG1, 0, 19, 1); // disable gpioh_3 internal pull-up
|
||||
+ aml_set_reg32_bits(P_PERIPHS_PIN_MUX_1, 1, 23, 1); // gpioh_3 cec pinmux
|
||||
+#endif
|
||||
+ cec_arbit_bit_time_set(3, 0x118, 0);
|
||||
+ cec_arbit_bit_time_set(5, 0x000, 0);
|
||||
+ cec_arbit_bit_time_set(7, 0x2aa, 0);
|
||||
+ cec_arbit_bit_time_set(3, 0x118, 0);
|
||||
+ cec_arbit_bit_time_set(5, 0x000, 0);
|
||||
+ cec_arbit_bit_time_set(7, 0x2aa, 0);
|
||||
+#endif
|
||||
+ hdmitx_device->cec_init_ready = 1;
|
||||
+ wake_up_interruptible(&cec_tx_struct.waitq);
|
||||
+ hdmitx_device->cec_init_ready = 1;
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_delayed_init: leave\n");
|
||||
+ }
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static int amlogic_cec_release(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK) & ~(1 << 23)); // Disable the hdmi cec interrupt
|
||||
+ free_irq(INT_HDMI_CEC, (void *)hdmitx_device);
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+ free_irq(INT_AO_CEC, (void *)hdmitx_device);
|
||||
+#endif
|
||||
+
|
||||
+ atomic_dec(&hdmi_on);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static ssize_t amlogic_cec_read(struct file *file, char __user *buffer,
|
||||
+ size_t count, loff_t *ppos)
|
||||
+{
|
||||
+ ssize_t retval;
|
||||
+ unsigned long spin_flags;
|
||||
+ struct cec_rx_list* entry = NULL;
|
||||
+
|
||||
+ if (wait_event_interruptible(cec_rx_struct.waitq,
|
||||
+ atomic_read(&cec_rx_struct.state) == STATE_DONE))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change\n");
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ spin_lock_irqsave(&cec_rx_struct.lock, spin_flags);
|
||||
+
|
||||
+ entry = list_first_entry_or_null(&cec_rx_struct.list, struct cec_rx_list, list);
|
||||
+
|
||||
+ if (entry == NULL || entry->size > count)
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("entry is NULL, or empty\n");
|
||||
+ retval = -1;
|
||||
+ goto error_exit;
|
||||
+ }
|
||||
+
|
||||
+ if (copy_to_user(buffer, entry->buffer, entry->size))
|
||||
+ {
|
||||
+ printk(KERN_ERR " copy_to_user() failed!\n");
|
||||
+
|
||||
+ retval = -EFAULT;
|
||||
+ goto error_exit;
|
||||
+ }
|
||||
+
|
||||
+ retval = entry->size;
|
||||
+
|
||||
+ amlogic_cec_set_rx_state(STATE_RX);
|
||||
+
|
||||
+error_exit:
|
||||
+ if (entry != NULL)
|
||||
+ {
|
||||
+ list_del(&entry->list);
|
||||
+ kfree(entry);
|
||||
+ }
|
||||
+
|
||||
+ spin_unlock_irqrestore(&cec_rx_struct.lock, spin_flags);
|
||||
+
|
||||
+ return retval;
|
||||
+}
|
||||
+
|
||||
+static ssize_t amlogic_cec_write(struct file *file, const char __user *buffer,
|
||||
+ size_t count, loff_t *ppos)
|
||||
+{
|
||||
+ char data[CEC_TX_BUFF_SIZE];
|
||||
+
|
||||
+ /* check data size */
|
||||
+ if (count > CEC_TX_BUFF_SIZE || count == 0)
|
||||
+ return -1;
|
||||
+
|
||||
+ if (copy_from_user(data, buffer, count))
|
||||
+ {
|
||||
+ printk(KERN_ERR " copy_from_user() failed!\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_set_tx_state(STATE_TX);
|
||||
+
|
||||
+ // just for the case that the first write starts
|
||||
+ // before the end of amlogic_cec_delayed_init()
|
||||
+ if (wait_event_interruptible(cec_tx_struct.waitq, hdmitx_device->cec_init_ready == 1))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change\n");
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_write_hw(data, count);
|
||||
+
|
||||
+ if (wait_event_interruptible_timeout(cec_tx_struct.waitq,
|
||||
+ atomic_read(&cec_tx_struct.state) != STATE_TX, 2 * HZ) <= 0)
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change, resetting\n");
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ amlogic_cec_write_reg(CEC_TX_MSG_CMD, TX_ABORT); // stop cec tx for hw retry.
|
||||
+ amlogic_cec_write_reg(CEC_TX_MSG_CMD, TX_NO_OP);
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ if (atomic_read(&cec_tx_struct.state) != STATE_DONE)
|
||||
+ {
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ return count;
|
||||
+}
|
||||
+
|
||||
+static long amlogic_cec_ioctl(struct file *file, unsigned int cmd,
|
||||
+ unsigned long arg)
|
||||
+{
|
||||
+ unsigned char logical_addr;
|
||||
+
|
||||
+ switch(cmd) {
|
||||
+ case CEC_IOC_SETLADDR:
|
||||
+ if (get_user(logical_addr, (unsigned char __user *)arg))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Failed to get logical addr from user\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_write_reg(CEC_LOGICAL_ADDR0, (0x1 << 4) | logical_addr);
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: Set logical address: %d\n", logical_addr);
|
||||
+ return 0;
|
||||
+
|
||||
+ case CEC_IOC_GETPADDR:
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: return physical address 0x%x\n", aml_read_reg32(P_AO_DEBUG_REG1));
|
||||
+ return aml_read_reg32(P_AO_DEBUG_REG1);
|
||||
+ }
|
||||
+
|
||||
+ return -EINVAL;
|
||||
+}
|
||||
+
|
||||
+static u32 amlogic_cec_poll(struct file *file, poll_table *wait)
|
||||
+{
|
||||
+ poll_wait(file, &cec_rx_struct.waitq, wait);
|
||||
+
|
||||
+ if (atomic_read(&cec_rx_struct.state) == STATE_DONE)
|
||||
+ {
|
||||
+ return POLLIN | POLLRDNORM;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct file_operations cec_fops = {
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .open = amlogic_cec_open,
|
||||
+ .release = amlogic_cec_release,
|
||||
+ .read = amlogic_cec_read,
|
||||
+ .write = amlogic_cec_write,
|
||||
+ .unlocked_ioctl = amlogic_cec_ioctl,
|
||||
+ .poll = amlogic_cec_poll,
|
||||
+};
|
||||
+
|
||||
+static struct miscdevice cec_misc_device = {
|
||||
+ .minor = CEC_MINOR,
|
||||
+ .name = "AmlogicCEC",
|
||||
+ .fops = &cec_fops,
|
||||
+};
|
||||
+
|
||||
+static int amlogic_cec_init(void)
|
||||
+{
|
||||
+ extern hdmitx_dev_t * get_hdmitx_device(void);
|
||||
@ -633,23 +630,6 @@ index 0000000..9565115
|
||||
+ hdmi_wr_reg(CEC0_BASE_ADDR+CEC_CLOCK_DIV_L, 0xf0 );
|
||||
+#endif
|
||||
+
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ if (request_irq(INT_HDMI_CEC, &amlogic_cec_irq_handler,
|
||||
+ IRQF_SHARED, "amhdmitx-cec",(void *)hdmitx_device))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Can't register IRQ %d\n",INT_HDMI_CEC);
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+ if (request_irq(INT_AO_CEC, &amlogic_cec_irq_handler,
|
||||
+ IRQF_SHARED, "amhdmitx-aocec",(void *)hdmitx_device))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Can't register IRQ %d\n",INT_HDMI_CEC);
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+#endif
|
||||
+
|
||||
+ init_waitqueue_head(&cec_rx_struct.waitq);
|
||||
+
|
||||
+ spin_lock_init(&cec_rx_struct.lock);
|
||||
@ -664,29 +644,11 @@ index 0000000..9565115
|
||||
+ return -EBUSY;
|
||||
+ }
|
||||
+
|
||||
+ cec_workqueue = create_workqueue("cec_work");
|
||||
+ if (cec_workqueue == NULL)
|
||||
+ {
|
||||
+ printk("create work queue failed\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+ INIT_WORK(&hdmitx_device->cec_work, amlogic_cec_delayed_init);
|
||||
+ queue_work(cec_workqueue, &hdmitx_device->cec_work); // for init
|
||||
+
|
||||
+ amlogic_cec_log_dbg("hdmitx_device->cec_init_ready:0x%x\n", hdmitx_device->cec_init_ready);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static void amlogic_cec_exit(void)
|
||||
+{
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK) & ~(1 << 23)); // Disable the hdmi cec interrupt
|
||||
+ free_irq(INT_HDMI_CEC, (void *)hdmitx_device);
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+ free_irq(INT_AO_CEC, (void *)hdmitx_device);
|
||||
+#endif
|
||||
+ misc_deregister(&cec_misc_device);
|
||||
+}
|
||||
+
|
||||
|
||||
@ -55,10 +55,10 @@ index 7a944cd..f74ec1f 100755
|
||||
#EXTRA_CFLAGS += -O2
|
||||
diff --git a/drivers/amlogic/hdmi/hdmi_tx/amlogic_cec.c b/drivers/amlogic/hdmi/hdmi_tx/amlogic_cec.c
|
||||
new file mode 100644
|
||||
index 0000000..9565115
|
||||
index 0000000..bd31aaa
|
||||
--- /dev/null
|
||||
+++ b/drivers/amlogic/hdmi/hdmi_tx/amlogic_cec.c
|
||||
@@ -0,0 +1,634 @@
|
||||
@@ -0,0 +1,596 @@
|
||||
+/* linux/drivers/amlogic/hdmi/hdmi_tx/amlogic_cec.c
|
||||
+ *
|
||||
+ * Copyright (c) 2016 Gerald Dachs
|
||||
@ -165,7 +165,6 @@ index 0000000..9565115
|
||||
+cec_global_info_t cec_global_info;
|
||||
+
|
||||
+static hdmitx_dev_t* hdmitx_device = NULL;
|
||||
+static struct workqueue_struct *cec_workqueue = NULL;
|
||||
+
|
||||
+static void amlogic_cec_set_rx_state(enum cec_state state)
|
||||
+{
|
||||
@ -282,8 +281,6 @@ index 0000000..9565115
|
||||
+ unsigned long spin_flags;
|
||||
+ struct cec_rx_list *entry;
|
||||
+
|
||||
+ amlogic_cec_log_dbg("cec node init: enter\n");
|
||||
+
|
||||
+ cec_phy_addr = (((hdmitx_device->hdmi_info.vsdb_phy_addr.a) & 0xf) << 12)
|
||||
+ | (((hdmitx_device->hdmi_info.vsdb_phy_addr.b) & 0xf) << 8)
|
||||
+ | (((hdmitx_device->hdmi_info.vsdb_phy_addr.c) & 0xf) << 4)
|
||||
@ -334,185 +331,6 @@ index 0000000..9565115
|
||||
+ amlogic_cec_log_dbg("cec node init: cec features ok !\n");
|
||||
+}
|
||||
+
|
||||
+static int amlogic_cec_open(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ int ret = 0;
|
||||
+
|
||||
+ if (atomic_read(&hdmi_on))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("do not allow multiple open for tvout cec\n");
|
||||
+ ret = -EBUSY;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ atomic_inc(&hdmi_on);
|
||||
+ }
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static int amlogic_cec_release(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ atomic_dec(&hdmi_on);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static ssize_t amlogic_cec_read(struct file *file, char __user *buffer,
|
||||
+ size_t count, loff_t *ppos)
|
||||
+{
|
||||
+ ssize_t retval;
|
||||
+ unsigned long spin_flags;
|
||||
+ struct cec_rx_list* entry = NULL;
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_read: enter\n");
|
||||
+
|
||||
+ if (wait_event_interruptible(cec_rx_struct.waitq,
|
||||
+ atomic_read(&cec_rx_struct.state) == STATE_DONE))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change\n");
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ spin_lock_irqsave(&cec_rx_struct.lock, spin_flags);
|
||||
+
|
||||
+ entry = list_first_entry_or_null(&cec_rx_struct.list, struct cec_rx_list, list);
|
||||
+
|
||||
+ if (entry == NULL || entry->size > count)
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("entry is NULL, or empty\n");
|
||||
+ retval = -1;
|
||||
+ goto error_exit;
|
||||
+ }
|
||||
+
|
||||
+ if (copy_to_user(buffer, entry->buffer, entry->size))
|
||||
+ {
|
||||
+ printk(KERN_ERR " copy_to_user() failed!\n");
|
||||
+
|
||||
+ retval = -EFAULT;
|
||||
+ goto error_exit;
|
||||
+ }
|
||||
+
|
||||
+ retval = entry->size;
|
||||
+
|
||||
+ amlogic_cec_set_rx_state(STATE_RX);
|
||||
+
|
||||
+error_exit:
|
||||
+ if (entry != NULL)
|
||||
+ {
|
||||
+ list_del(&entry->list);
|
||||
+ kfree(entry);
|
||||
+ }
|
||||
+
|
||||
+ spin_unlock_irqrestore(&cec_rx_struct.lock, spin_flags);
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_read: leave\n");
|
||||
+
|
||||
+ return retval;
|
||||
+}
|
||||
+
|
||||
+static ssize_t amlogic_cec_write(struct file *file, const char __user *buffer,
|
||||
+ size_t count, loff_t *ppos)
|
||||
+{
|
||||
+ char data[CEC_TX_BUFF_SIZE];
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_write: enter\n");
|
||||
+
|
||||
+ /* check data size */
|
||||
+ if (count > CEC_TX_BUFF_SIZE || count == 0)
|
||||
+ return -1;
|
||||
+
|
||||
+ if (copy_from_user(data, buffer, count))
|
||||
+ {
|
||||
+ printk(KERN_ERR " copy_from_user() failed!\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_set_tx_state(STATE_TX);
|
||||
+
|
||||
+ // just for the case that the first write starts
|
||||
+ // before the end of amlogic_cec_delayed_init()
|
||||
+ if (wait_event_interruptible(cec_tx_struct.waitq, hdmitx_device->cec_init_ready == 1))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change\n");
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_write_hw(data, count);
|
||||
+
|
||||
+ if (wait_event_interruptible_timeout(cec_tx_struct.waitq,
|
||||
+ atomic_read(&cec_tx_struct.state) != STATE_TX, 2 * HZ) <= 0)
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change, resetting\n");
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ amlogic_cec_write_reg(CEC_TX_MSG_CMD, TX_ABORT); // stop cec tx for hw retry.
|
||||
+ amlogic_cec_write_reg(CEC_TX_MSG_CMD, TX_NO_OP);
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ if (atomic_read(&cec_tx_struct.state) != STATE_DONE)
|
||||
+ {
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_write: leave\n");
|
||||
+
|
||||
+ return count;
|
||||
+}
|
||||
+
|
||||
+static long amlogic_cec_ioctl(struct file *file, unsigned int cmd,
|
||||
+ unsigned long arg)
|
||||
+{
|
||||
+ unsigned char logical_addr;
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: enter\n");
|
||||
+
|
||||
+ switch(cmd) {
|
||||
+ case CEC_IOC_SETLADDR:
|
||||
+ if (get_user(logical_addr, (unsigned char __user *)arg))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Failed to get logical addr from user\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_write_reg(CEC_LOGICAL_ADDR0, (0x1 << 4) | logical_addr);
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: Set logical address: %d\n", logical_addr);
|
||||
+ return 0;
|
||||
+
|
||||
+ case CEC_IOC_GETPADDR:
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: return physical address 0x%x\n", aml_read_reg32(P_AO_DEBUG_REG1));
|
||||
+ return aml_read_reg32(P_AO_DEBUG_REG1);
|
||||
+ }
|
||||
+
|
||||
+ return -EINVAL;
|
||||
+}
|
||||
+
|
||||
+static u32 amlogic_cec_poll(struct file *file, poll_table *wait)
|
||||
+{
|
||||
+ poll_wait(file, &cec_rx_struct.waitq, wait);
|
||||
+
|
||||
+ if (atomic_read(&cec_rx_struct.state) == STATE_DONE)
|
||||
+ {
|
||||
+ return POLLIN | POLLRDNORM;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct file_operations cec_fops = {
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .open = amlogic_cec_open,
|
||||
+ .release = amlogic_cec_release,
|
||||
+ .read = amlogic_cec_read,
|
||||
+ .write = amlogic_cec_write,
|
||||
+ .unlocked_ioctl = amlogic_cec_ioctl,
|
||||
+ .poll = amlogic_cec_poll,
|
||||
+};
|
||||
+
|
||||
+static struct miscdevice cec_misc_device = {
|
||||
+ .minor = CEC_MINOR,
|
||||
+ .name = "AmlogicCEC",
|
||||
+ .fops = &cec_fops,
|
||||
+};
|
||||
+
|
||||
+static irqreturn_t amlogic_cec_irq_handler(int irq, void *dummy)
|
||||
+{
|
||||
+ unsigned long spin_flags;
|
||||
@ -520,8 +338,6 @@ index 0000000..9565115
|
||||
+ unsigned int tx_msg_state;
|
||||
+ unsigned int rx_msg_state;
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_irq_handler: enter\n");
|
||||
+
|
||||
+ udelay(100); //Delay execution a little. This fixes an issue when HDMI CEC stops working after a while.
|
||||
+
|
||||
+ tx_msg_state = amlogic_cec_read_reg(CEC_TX_MSG_STATUS);
|
||||
@ -573,52 +389,233 @@ index 0000000..9565115
|
||||
+ wake_up_interruptible(&cec_rx_struct.waitq);
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_irq_handler: leave\n");
|
||||
+
|
||||
+ return IRQ_HANDLED;
|
||||
+}
|
||||
+
|
||||
+static void amlogic_cec_delayed_init(struct work_struct *work)
|
||||
+static int amlogic_cec_open(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ hdmitx_dev_t* hdmitx_device = (hdmitx_dev_t*)container_of(work, hdmitx_dev_t, cec_work);
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_delayed_init: enter\n");
|
||||
+
|
||||
+ msleep_interruptible(15000);
|
||||
+ int ret = 0;
|
||||
+
|
||||
+ if (atomic_read(&hdmi_on))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("do not allow multiple open for tvout cec\n");
|
||||
+ ret = -EBUSY;
|
||||
+ }
|
||||
+ else
|
||||
+ {
|
||||
+ atomic_inc(&hdmi_on);
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ cec_gpi_init();
|
||||
+ if (request_irq(INT_HDMI_CEC, &amlogic_cec_irq_handler,
|
||||
+ IRQF_SHARED, "amhdmitx-cec",(void *)hdmitx_device))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Can't register IRQ %d\n",INT_HDMI_CEC);
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+ if (request_irq(INT_AO_CEC, &amlogic_cec_irq_handler,
|
||||
+ IRQF_SHARED, "amhdmitx-aocec",(void *)hdmitx_device))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Can't register IRQ %d\n",INT_HDMI_CEC);
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+#endif
|
||||
+
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ aml_set_reg32_bits(P_PERIPHS_PIN_MUX_1, 1, 25, 1);
|
||||
+ // Clear CEC Int. state and set CEC Int. mask
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_STAT_CLR, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_STAT_CLR) | (1 << 23)); // Clear the interrupt
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK) | (1 << 23)); // Enable the hdmi cec interrupt
|
||||
+ cec_gpi_init();
|
||||
+#endif
|
||||
+
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ aml_set_reg32_bits(P_PERIPHS_PIN_MUX_1, 1, 25, 1);
|
||||
+ // Clear CEC Int. state and set CEC Int. mask
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_STAT_CLR, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_STAT_CLR) | (1 << 23)); // Clear the interrupt
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK) | (1 << 23)); // Enable the hdmi cec interrupt
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+#if 1 // Please match with H/W cec config
|
||||
+// GPIOAO_12
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PIN_MUX_REG, 0, 14, 1); // bit[14]: AO_PWM_C pinmux //0xc8100014
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PULL_UP_REG, 1, 12, 1); // bit[12]: enable AO_12 internal pull-up //0xc810002c
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PIN_MUX_REG, 1, 17, 1); // bit[17]: AO_CEC pinmux //0xc8100014
|
||||
+ ao_cec_init();
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PIN_MUX_REG, 0, 14, 1); // bit[14]: AO_PWM_C pinmux //0xc8100014
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PULL_UP_REG, 1, 12, 1); // bit[12]: enable AO_12 internal pull-up //0xc810002c
|
||||
+ aml_set_reg32_bits(P_AO_RTI_PIN_MUX_REG, 1, 17, 1); // bit[17]: AO_CEC pinmux //0xc8100014
|
||||
+ ao_cec_init();
|
||||
+#else
|
||||
+// GPIOH_3
|
||||
+ aml_set_reg32_bits(P_PAD_PULL_UP_EN_REG1, 0, 19, 1); // disable gpioh_3 internal pull-up
|
||||
+ aml_set_reg32_bits(P_PERIPHS_PIN_MUX_1, 1, 23, 1); // gpioh_3 cec pinmux
|
||||
+ aml_set_reg32_bits(P_PAD_PULL_UP_EN_REG1, 0, 19, 1); // disable gpioh_3 internal pull-up
|
||||
+ aml_set_reg32_bits(P_PERIPHS_PIN_MUX_1, 1, 23, 1); // gpioh_3 cec pinmux
|
||||
+#endif
|
||||
+ cec_arbit_bit_time_set(3, 0x118, 0);
|
||||
+ cec_arbit_bit_time_set(5, 0x000, 0);
|
||||
+ cec_arbit_bit_time_set(7, 0x2aa, 0);
|
||||
+ cec_arbit_bit_time_set(3, 0x118, 0);
|
||||
+ cec_arbit_bit_time_set(5, 0x000, 0);
|
||||
+ cec_arbit_bit_time_set(7, 0x2aa, 0);
|
||||
+#endif
|
||||
+ hdmitx_device->cec_init_ready = 1;
|
||||
+ wake_up_interruptible(&cec_tx_struct.waitq);
|
||||
+ hdmitx_device->cec_init_ready = 1;
|
||||
+
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_delayed_init: leave\n");
|
||||
+ }
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static int amlogic_cec_release(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK) & ~(1 << 23)); // Disable the hdmi cec interrupt
|
||||
+ free_irq(INT_HDMI_CEC, (void *)hdmitx_device);
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+ free_irq(INT_AO_CEC, (void *)hdmitx_device);
|
||||
+#endif
|
||||
+
|
||||
+ atomic_dec(&hdmi_on);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static ssize_t amlogic_cec_read(struct file *file, char __user *buffer,
|
||||
+ size_t count, loff_t *ppos)
|
||||
+{
|
||||
+ ssize_t retval;
|
||||
+ unsigned long spin_flags;
|
||||
+ struct cec_rx_list* entry = NULL;
|
||||
+
|
||||
+ if (wait_event_interruptible(cec_rx_struct.waitq,
|
||||
+ atomic_read(&cec_rx_struct.state) == STATE_DONE))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change\n");
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ spin_lock_irqsave(&cec_rx_struct.lock, spin_flags);
|
||||
+
|
||||
+ entry = list_first_entry_or_null(&cec_rx_struct.list, struct cec_rx_list, list);
|
||||
+
|
||||
+ if (entry == NULL || entry->size > count)
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("entry is NULL, or empty\n");
|
||||
+ retval = -1;
|
||||
+ goto error_exit;
|
||||
+ }
|
||||
+
|
||||
+ if (copy_to_user(buffer, entry->buffer, entry->size))
|
||||
+ {
|
||||
+ printk(KERN_ERR " copy_to_user() failed!\n");
|
||||
+
|
||||
+ retval = -EFAULT;
|
||||
+ goto error_exit;
|
||||
+ }
|
||||
+
|
||||
+ retval = entry->size;
|
||||
+
|
||||
+ amlogic_cec_set_rx_state(STATE_RX);
|
||||
+
|
||||
+error_exit:
|
||||
+ if (entry != NULL)
|
||||
+ {
|
||||
+ list_del(&entry->list);
|
||||
+ kfree(entry);
|
||||
+ }
|
||||
+
|
||||
+ spin_unlock_irqrestore(&cec_rx_struct.lock, spin_flags);
|
||||
+
|
||||
+ return retval;
|
||||
+}
|
||||
+
|
||||
+static ssize_t amlogic_cec_write(struct file *file, const char __user *buffer,
|
||||
+ size_t count, loff_t *ppos)
|
||||
+{
|
||||
+ char data[CEC_TX_BUFF_SIZE];
|
||||
+
|
||||
+ /* check data size */
|
||||
+ if (count > CEC_TX_BUFF_SIZE || count == 0)
|
||||
+ return -1;
|
||||
+
|
||||
+ if (copy_from_user(data, buffer, count))
|
||||
+ {
|
||||
+ printk(KERN_ERR " copy_from_user() failed!\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_set_tx_state(STATE_TX);
|
||||
+
|
||||
+ // just for the case that the first write starts
|
||||
+ // before the end of amlogic_cec_delayed_init()
|
||||
+ if (wait_event_interruptible(cec_tx_struct.waitq, hdmitx_device->cec_init_ready == 1))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change\n");
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_write_hw(data, count);
|
||||
+
|
||||
+ if (wait_event_interruptible_timeout(cec_tx_struct.waitq,
|
||||
+ atomic_read(&cec_tx_struct.state) != STATE_TX, 2 * HZ) <= 0)
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("error during wait on state change, resetting\n");
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ amlogic_cec_write_reg(CEC_TX_MSG_CMD, TX_ABORT); // stop cec tx for hw retry.
|
||||
+ amlogic_cec_write_reg(CEC_TX_MSG_CMD, TX_NO_OP);
|
||||
+ return -ERESTARTSYS;
|
||||
+ }
|
||||
+
|
||||
+ if (atomic_read(&cec_tx_struct.state) != STATE_DONE)
|
||||
+ {
|
||||
+ printk(KERN_ERR "[amlogic] ##### cec write error! #####\n");
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ return count;
|
||||
+}
|
||||
+
|
||||
+static long amlogic_cec_ioctl(struct file *file, unsigned int cmd,
|
||||
+ unsigned long arg)
|
||||
+{
|
||||
+ unsigned char logical_addr;
|
||||
+
|
||||
+ switch(cmd) {
|
||||
+ case CEC_IOC_SETLADDR:
|
||||
+ if (get_user(logical_addr, (unsigned char __user *)arg))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Failed to get logical addr from user\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+
|
||||
+ amlogic_cec_write_reg(CEC_LOGICAL_ADDR0, (0x1 << 4) | logical_addr);
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: Set logical address: %d\n", logical_addr);
|
||||
+ return 0;
|
||||
+
|
||||
+ case CEC_IOC_GETPADDR:
|
||||
+ amlogic_cec_log_dbg("amlogic_cec_ioctl: return physical address 0x%x\n", aml_read_reg32(P_AO_DEBUG_REG1));
|
||||
+ return aml_read_reg32(P_AO_DEBUG_REG1);
|
||||
+ }
|
||||
+
|
||||
+ return -EINVAL;
|
||||
+}
|
||||
+
|
||||
+static u32 amlogic_cec_poll(struct file *file, poll_table *wait)
|
||||
+{
|
||||
+ poll_wait(file, &cec_rx_struct.waitq, wait);
|
||||
+
|
||||
+ if (atomic_read(&cec_rx_struct.state) == STATE_DONE)
|
||||
+ {
|
||||
+ return POLLIN | POLLRDNORM;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct file_operations cec_fops = {
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .open = amlogic_cec_open,
|
||||
+ .release = amlogic_cec_release,
|
||||
+ .read = amlogic_cec_read,
|
||||
+ .write = amlogic_cec_write,
|
||||
+ .unlocked_ioctl = amlogic_cec_ioctl,
|
||||
+ .poll = amlogic_cec_poll,
|
||||
+};
|
||||
+
|
||||
+static struct miscdevice cec_misc_device = {
|
||||
+ .minor = CEC_MINOR,
|
||||
+ .name = "AmlogicCEC",
|
||||
+ .fops = &cec_fops,
|
||||
+};
|
||||
+
|
||||
+static int amlogic_cec_init(void)
|
||||
+{
|
||||
+ extern hdmitx_dev_t * get_hdmitx_device(void);
|
||||
@ -633,23 +630,6 @@ index 0000000..9565115
|
||||
+ hdmi_wr_reg(CEC0_BASE_ADDR+CEC_CLOCK_DIV_L, 0xf0 );
|
||||
+#endif
|
||||
+
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ if (request_irq(INT_HDMI_CEC, &amlogic_cec_irq_handler,
|
||||
+ IRQF_SHARED, "amhdmitx-cec",(void *)hdmitx_device))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Can't register IRQ %d\n",INT_HDMI_CEC);
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+ if (request_irq(INT_AO_CEC, &amlogic_cec_irq_handler,
|
||||
+ IRQF_SHARED, "amhdmitx-aocec",(void *)hdmitx_device))
|
||||
+ {
|
||||
+ amlogic_cec_log_dbg("Can't register IRQ %d\n",INT_HDMI_CEC);
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+#endif
|
||||
+
|
||||
+ init_waitqueue_head(&cec_rx_struct.waitq);
|
||||
+
|
||||
+ spin_lock_init(&cec_rx_struct.lock);
|
||||
@ -664,29 +644,11 @@ index 0000000..9565115
|
||||
+ return -EBUSY;
|
||||
+ }
|
||||
+
|
||||
+ cec_workqueue = create_workqueue("cec_work");
|
||||
+ if (cec_workqueue == NULL)
|
||||
+ {
|
||||
+ printk("create work queue failed\n");
|
||||
+ return -EFAULT;
|
||||
+ }
|
||||
+ INIT_WORK(&hdmitx_device->cec_work, amlogic_cec_delayed_init);
|
||||
+ queue_work(cec_workqueue, &hdmitx_device->cec_work); // for init
|
||||
+
|
||||
+ amlogic_cec_log_dbg("hdmitx_device->cec_init_ready:0x%x\n", hdmitx_device->cec_init_ready);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static void amlogic_cec_exit(void)
|
||||
+{
|
||||
+#if MESON_CPU_TYPE == MESON_CPU_TYPE_MESON6
|
||||
+ aml_write_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK, aml_read_reg32(P_SYS_CPU_0_IRQ_IN1_INTR_MASK) & ~(1 << 23)); // Disable the hdmi cec interrupt
|
||||
+ free_irq(INT_HDMI_CEC, (void *)hdmitx_device);
|
||||
+#endif
|
||||
+#if MESON_CPU_TYPE >= MESON_CPU_TYPE_MESON8
|
||||
+ free_irq(INT_AO_CEC, (void *)hdmitx_device);
|
||||
+#endif
|
||||
+ misc_deregister(&cec_misc_device);
|
||||
+}
|
||||
+
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user