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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 18:16:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 18:16:23 -0700
commitc6a677c6f37bb7abc85ba7e3465e82b9f7eb1d91 (patch)
tree9d0d4bb2e150837297cddc5be7f1b4950e9ab228 /drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c
parente87d51ac61f88ae44fe14b34abe08566032d726b (diff)
parent11270059e8d0b6f80801fac910c4ef751ca05c4c (diff)
Merge tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO updates from Greg KH: "Here is the big staging tree update for 4.12-rc1. It's a big one, adding about 350k new lines of crap^Wcode, mostly all in a big dump of media drivers from Intel. But there's other new drivers in here as well, yet-another-wifi driver, new IIO drivers, and a new crypto accelerator. We also deleted a bunch of stuff, mostly in patch cleanups, but also the Android ION code has shrunk a lot, and the Android low memory killer driver was finally deleted, much to the celebration of the -mm developers. All of these have been in linux-next with a few build issues that will show up when you merge to your tree" Merge conflicts in the new rtl8723bs driver (due to the wifi changes this merge window) handled as per linux-next, courtesy of Stephen Rothwell. * tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1182 commits) staging: fsl-mc/dpio: add cpu <--> LE conversion for dpaa2_fd staging: ks7010: remove line continuations in quoted strings staging: vt6656: use tabs instead of spaces staging: android: ion: Fix unnecessary initialization of static variable staging: media: atomisp: fix range checking on clk_num staging: media: atomisp: fix misspelled word in comment staging: media: atomisp: kmap() can't fail staging: atomisp: remove #ifdef for runtime PM functions staging: atomisp: satm include directory is gone atomisp: remove some more unused files atomisp: remove hmm_load/store/clear indirections atomisp: kill off mmgr_free atomisp: clean up the hmm init/cleanup indirections atomisp: handle allocation calls before init in the hmm layer staging: fsl-dpaa2/eth: Add maintainer for Ethernet driver staging: fsl-dpaa2/eth: Add TODO file staging: fsl-dpaa2/eth: Add trace points staging: fsl-dpaa2/eth: Add driver specific stats staging: fsl-dpaa2/eth: Add ethtool support staging: fsl-dpaa2/eth: Add Freescale DPAA2 Ethernet driver ...
Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c')
-rw-r--r--drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c
new file mode 100644
index 000000000000..47c21e486c25
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/isp.c
@@ -0,0 +1,129 @@
+/*
+ * Support for Intel Camera Imaging ISP subsystem.
+ * Copyright (c) 2010-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#include <system_global.h>
+#include "isp.h"
+
+#ifndef __INLINE_ISP__
+#include "isp_private.h"
+#endif /* __INLINE_ISP__ */
+
+#include "assert_support.h"
+#include "platform_support.h" /* hrt_sleep() */
+
+void cnd_isp_irq_enable(
+ const isp_ID_t ID,
+ const bool cnd)
+{
+ if (cnd) {
+ isp_ctrl_setbit(ID, ISP_IRQ_READY_REG, ISP_IRQ_READY_BIT);
+/* Enabling the IRQ immediately triggers an interrupt, clear it */
+ isp_ctrl_setbit(ID, ISP_IRQ_CLEAR_REG, ISP_IRQ_CLEAR_BIT);
+ } else {
+ isp_ctrl_clearbit(ID, ISP_IRQ_READY_REG,
+ ISP_IRQ_READY_BIT);
+ }
+return;
+}
+
+void isp_get_state(
+ const isp_ID_t ID,
+ isp_state_t *state,
+ isp_stall_t *stall)
+{
+ hrt_data sc = isp_ctrl_load(ID, ISP_SC_REG);
+
+ assert(state != NULL);
+ assert(stall != NULL);
+
+#if defined(_hrt_sysmem_ident_address)
+ /* Patch to avoid compiler unused symbol warning in C_RUN build */
+ (void)__hrt_sysmem_ident_address;
+ (void)_hrt_sysmem_map_var;
+#endif
+
+ state->pc = isp_ctrl_load(ID, ISP_PC_REG);
+ state->status_register = sc;
+ state->is_broken = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_BROKEN_BIT);
+ state->is_idle = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_IDLE_BIT);
+ state->is_sleeping = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_SLEEPING_BIT);
+ state->is_stalling = isp_ctrl_getbit(ID, ISP_SC_REG, ISP_STALLING_BIT);
+ stall->stat_ctrl =
+ !isp_ctrl_getbit(ID, ISP_CTRL_SINK_REG, ISP_CTRL_SINK_BIT);
+ stall->pmem =
+ !isp_ctrl_getbit(ID, ISP_PMEM_SINK_REG, ISP_PMEM_SINK_BIT);
+ stall->dmem =
+ !isp_ctrl_getbit(ID, ISP_DMEM_SINK_REG, ISP_DMEM_SINK_BIT);
+ stall->vmem =
+ !isp_ctrl_getbit(ID, ISP_VMEM_SINK_REG, ISP_VMEM_SINK_BIT);
+ stall->fifo0 =
+ !isp_ctrl_getbit(ID, ISP_FIFO0_SINK_REG, ISP_FIFO0_SINK_BIT);
+ stall->fifo1 =
+ !isp_ctrl_getbit(ID, ISP_FIFO1_SINK_REG, ISP_FIFO1_SINK_BIT);
+ stall->fifo2 =
+ !isp_ctrl_getbit(ID, ISP_FIFO2_SINK_REG, ISP_FIFO2_SINK_BIT);
+ stall->fifo3 =
+ !isp_ctrl_getbit(ID, ISP_FIFO3_SINK_REG, ISP_FIFO3_SINK_BIT);
+ stall->fifo4 =
+ !isp_ctrl_getbit(ID, ISP_FIFO4_SINK_REG, ISP_FIFO4_SINK_BIT);
+ stall->fifo5 =
+ !isp_ctrl_getbit(ID, ISP_FIFO5_SINK_REG, ISP_FIFO5_SINK_BIT);
+ stall->fifo6 =
+ !isp_ctrl_getbit(ID, ISP_FIFO6_SINK_REG, ISP_FIFO6_SINK_BIT);
+ stall->vamem1 =
+ !isp_ctrl_getbit(ID, ISP_VAMEM1_SINK_REG, ISP_VAMEM1_SINK_BIT);
+ stall->vamem2 =
+ !isp_ctrl_getbit(ID, ISP_VAMEM2_SINK_REG, ISP_VAMEM2_SINK_BIT);
+ stall->vamem3 =
+ !isp_ctrl_getbit(ID, ISP_VAMEM3_SINK_REG, ISP_VAMEM3_SINK_BIT);
+ stall->hmem =
+ !isp_ctrl_getbit(ID, ISP_HMEM_SINK_REG, ISP_HMEM_SINK_BIT);
+/*
+ stall->icache_master =
+ !isp_ctrl_getbit(ID, ISP_ICACHE_MT_SINK_REG,
+ ISP_ICACHE_MT_SINK_BIT);
+ */
+return;
+}
+
+/* ISP functions to control the ISP state from the host, even in crun. */
+
+/* Inspect readiness of an ISP indexed by ID */
+unsigned isp_is_ready(isp_ID_t ID)
+{
+ assert (ID < N_ISP_ID);
+ return isp_ctrl_getbit(ID, ISP_SC_REG, ISP_IDLE_BIT);
+}
+
+/* Inspect sleeping of an ISP indexed by ID */
+unsigned isp_is_sleeping(isp_ID_t ID)
+{
+ assert (ID < N_ISP_ID);
+ return isp_ctrl_getbit(ID, ISP_SC_REG, ISP_SLEEPING_BIT);
+}
+
+/* To be called by the host immediately before starting ISP ID. */
+void isp_start(isp_ID_t ID)
+{
+ assert (ID < N_ISP_ID);
+}
+
+/* Wake up ISP ID. */
+void isp_wake(isp_ID_t ID)
+{
+ assert (ID < N_ISP_ID);
+ isp_ctrl_setbit(ID, ISP_SC_REG, ISP_START_BIT);
+ hrt_sleep();
+}
+