Re: [PATCH v4 10/13] [media] exynos5-fimc-is: Add the hardware interface module
On 08/07/2013 11:03 AM, Arun Kumar K wrote:
The hardware interface module finally sends the commands to the
FIMC-IS firmware and runs the interrupt handler for getting the
responses.
Signed-off-by: Arun Kumar Karun...@samsung.com
Signed-off-by: Kilyeon Imkilyeon...@samsung.com
---
.../media/platform/exynos5-is/fimc-is-interface.c | 810
.../media/platform/exynos5-is/fimc-is-interface.h | 125 +++
2 files changed, 935 insertions(+)
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-interface.c
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-interface.h
diff --git a/drivers/media/platform/exynos5-is/fimc-is-interface.c
b/drivers/media/platform/exynos5-is/fimc-is-interface.c
new file mode 100644
index 000..9fcf89d
--- /dev/null
+++ b/drivers/media/platform/exynos5-is/fimc-is-interface.c
@@ -0,0 +1,810 @@
+/*
+ * Samsung EXYNOS5 FIMC-IS (Imaging Subsystem) driver
+*
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Kil-yeon Limkilyeon...@samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#includelinux/debugfs.h
+#includelinux/seq_file.h
+#include fimc-is.h
+#include fimc-is-cmd.h
+#include fimc-is-regs.h
+
+#define init_request_barrier(itf) mutex_init(itf-request_barrier)
+#define enter_request_barrier(itf) mutex_lock(itf-request_barrier)
+#define exit_request_barrier(itf) mutex_unlock(itf-request_barrier)
+
+static inline void itf_get_cmd(struct fimc_is_interface *itf,
+ struct fimc_is_msg *msg, unsigned int index)
+{
+ struct is_common_reg __iomem *com_regs = itf-com_regs;
+
+ memset(msg, 0, sizeof(*msg));
+
+ switch (index) {
+ case INTR_GENERAL:
+ msg-command = com_regs-ihcmd;
+ msg-instance = com_regs-ihc_sensorid;
+ memcpy(msg-param, com_regs-ihc_param,
+ 4 * sizeof(msg-param[0]));
+ break;
+ case INTR_SCC_FDONE:
+ msg-command = IHC_FRAME_DONE;
+ msg-instance = com_regs-scc_sensor_id;
+ memcpy(msg-param, com_regs-scc_param,
+ 3 * sizeof(msg-param[0]));
+ break;
+ case INTR_SCP_FDONE:
+ msg-command = IHC_FRAME_DONE;
+ msg-instance = com_regs-scp_sensor_id;
+ memcpy(msg-param, com_regs-scp_param,
+ 3 * sizeof(msg-param[0]));
+ break;
+ case INTR_META_DONE:
+ msg-command = IHC_FRAME_DONE;
+ msg-instance = com_regs-meta_sensor_id;
+ msg-param[0] = com_regs-meta_param1;
+ break;
+ case INTR_SHOT_DONE:
+ msg-command = IHC_FRAME_DONE;
+ msg-instance = com_regs-shot_sensor_id;
+ memcpy(msg-param, com_regs-shot_param,
+ 2 * sizeof(msg-param[0]));
+ break;
+ default:
+ dev_err(itf-dev, %s Unknown command\n, __func__);
+ break;
+ }
+}
+
+static inline unsigned int itf_get_intr(struct fimc_is_interface *itf)
+{
+ unsigned int status;
+ struct is_common_reg __iomem *com_regs = itf-com_regs;
+
+ status = readl(itf-regs + INTMSR1) | com_regs-ihcmd_iflag |
+ com_regs-scc_iflag |
+ com_regs-scp_iflag |
+ com_regs-meta_iflag |
+ com_regs-shot_iflag;
+
+ return status;
+}
+
+static void itf_set_state(struct fimc_is_interface *itf,
+ unsigned long state)
+{
+ unsigned long flags;
+ spin_lock_irqsave(itf-slock_state, flags);
+ __set_bit(state,itf-state);
+ spin_unlock_irqrestore(itf-slock_state, flags);
+}
+
+static void itf_clr_state(struct fimc_is_interface *itf,
+ unsigned long state)
+{
+ unsigned long flags;
+ spin_lock_irqsave(itf-slock_state, flags);
+ __clear_bit(state,itf-state);
+ spin_unlock_irqrestore(itf-slock_state, flags);
+}
+
+static int itf_get_state(struct fimc_is_interface *itf,
+ unsigned long state)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(itf-slock_state, flags);
+ ret = test_bit(state,itf-state);
+ spin_unlock_irqrestore(itf-slock_state, flags);
+ return ret;
+}
+
+static void itf_init_wakeup(struct fimc_is_interface *itf)
+{
+ itf_set_state(itf, IS_IF_STATE_INIT);
+ wake_up(itf-irq_queue);
+}
+
+void itf_busy_wakeup(struct fimc_is_interface *itf)
+{
+ itf_clr_state(itf, IS_IF_STATE_BUSY);
+ wake_up(itf-irq_queue);
+}
+
+static int itf_wait_hw_ready(struct fimc_is_interface *itf)
+{
+ int t;
+ for (t = TRY_RECV_AWARE_COUNT; t= 0; t--) {
+ unsigned int cfg = readl(itf-regs + INTMSR0);
+ if
[PATCH v4 10/13] [media] exynos5-fimc-is: Add the hardware interface module
The hardware interface module finally sends the commands to the
FIMC-IS firmware and runs the interrupt handler for getting the
responses.
Signed-off-by: Arun Kumar K arun...@samsung.com
Signed-off-by: Kilyeon Im kilyeon...@samsung.com
---
.../media/platform/exynos5-is/fimc-is-interface.c | 810
.../media/platform/exynos5-is/fimc-is-interface.h | 125 +++
2 files changed, 935 insertions(+)
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-interface.c
create mode 100644 drivers/media/platform/exynos5-is/fimc-is-interface.h
diff --git a/drivers/media/platform/exynos5-is/fimc-is-interface.c
b/drivers/media/platform/exynos5-is/fimc-is-interface.c
new file mode 100644
index 000..9fcf89d
--- /dev/null
+++ b/drivers/media/platform/exynos5-is/fimc-is-interface.c
@@ -0,0 +1,810 @@
+/*
+ * Samsung EXYNOS5 FIMC-IS (Imaging Subsystem) driver
+*
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Kil-yeon Lim kilyeon...@samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include linux/debugfs.h
+#include linux/seq_file.h
+#include fimc-is.h
+#include fimc-is-cmd.h
+#include fimc-is-regs.h
+
+#define init_request_barrier(itf) mutex_init(itf-request_barrier)
+#define enter_request_barrier(itf) mutex_lock(itf-request_barrier)
+#define exit_request_barrier(itf) mutex_unlock(itf-request_barrier)
+
+static inline void itf_get_cmd(struct fimc_is_interface *itf,
+ struct fimc_is_msg *msg, unsigned int index)
+{
+ struct is_common_reg __iomem *com_regs = itf-com_regs;
+
+ memset(msg, 0, sizeof(*msg));
+
+ switch (index) {
+ case INTR_GENERAL:
+ msg-command = com_regs-ihcmd;
+ msg-instance = com_regs-ihc_sensorid;
+ memcpy(msg-param, com_regs-ihc_param,
+ 4 * sizeof(msg-param[0]));
+ break;
+ case INTR_SCC_FDONE:
+ msg-command = IHC_FRAME_DONE;
+ msg-instance = com_regs-scc_sensor_id;
+ memcpy(msg-param, com_regs-scc_param,
+ 3 * sizeof(msg-param[0]));
+ break;
+ case INTR_SCP_FDONE:
+ msg-command = IHC_FRAME_DONE;
+ msg-instance = com_regs-scp_sensor_id;
+ memcpy(msg-param, com_regs-scp_param,
+ 3 * sizeof(msg-param[0]));
+ break;
+ case INTR_META_DONE:
+ msg-command = IHC_FRAME_DONE;
+ msg-instance = com_regs-meta_sensor_id;
+ msg-param[0] = com_regs-meta_param1;
+ break;
+ case INTR_SHOT_DONE:
+ msg-command = IHC_FRAME_DONE;
+ msg-instance = com_regs-shot_sensor_id;
+ memcpy(msg-param, com_regs-shot_param,
+ 2 * sizeof(msg-param[0]));
+ break;
+ default:
+ dev_err(itf-dev, %s Unknown command\n, __func__);
+ break;
+ }
+}
+
+static inline unsigned int itf_get_intr(struct fimc_is_interface *itf)
+{
+ unsigned int status;
+ struct is_common_reg __iomem *com_regs = itf-com_regs;
+
+ status = readl(itf-regs + INTMSR1) | com_regs-ihcmd_iflag |
+ com_regs-scc_iflag |
+ com_regs-scp_iflag |
+ com_regs-meta_iflag |
+ com_regs-shot_iflag;
+
+ return status;
+}
+
+static void itf_set_state(struct fimc_is_interface *itf,
+ unsigned long state)
+{
+ unsigned long flags;
+ spin_lock_irqsave(itf-slock_state, flags);
+ __set_bit(state, itf-state);
+ spin_unlock_irqrestore(itf-slock_state, flags);
+}
+
+static void itf_clr_state(struct fimc_is_interface *itf,
+ unsigned long state)
+{
+ unsigned long flags;
+ spin_lock_irqsave(itf-slock_state, flags);
+ __clear_bit(state, itf-state);
+ spin_unlock_irqrestore(itf-slock_state, flags);
+}
+
+static int itf_get_state(struct fimc_is_interface *itf,
+ unsigned long state)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(itf-slock_state, flags);
+ ret = test_bit(state, itf-state);
+ spin_unlock_irqrestore(itf-slock_state, flags);
+ return ret;
+}
+
+static void itf_init_wakeup(struct fimc_is_interface *itf)
+{
+ itf_set_state(itf, IS_IF_STATE_INIT);
+ wake_up(itf-irq_queue);
+}
+
+void itf_busy_wakeup(struct fimc_is_interface *itf)
+{
+ itf_clr_state(itf, IS_IF_STATE_BUSY);
+ wake_up(itf-irq_queue);
+}
+
+static int itf_wait_hw_ready(struct fimc_is_interface *itf)
+{
+ int t;
+ for (t = TRY_RECV_AWARE_COUNT; t = 0; t--) {
+ unsigned int cfg = readl(itf-regs + INTMSR0);
+ if (INTMSR0_GET_INTMSD(0, cfg) == 0)
+
