Remove the driver for omap24xxcam. It uses the obsolete V4L2 int device
framework and does not even work.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxx>
---
drivers/media/platform/Kconfig | 7 -
drivers/media/platform/Makefile | 3 -
drivers/media/platform/omap24xxcam-dma.c | 601 ----------
drivers/media/platform/omap24xxcam.c | 1881 ------------------------------
drivers/media/platform/omap24xxcam.h | 593 ----------
5 files changed, 0 insertions(+), 3085 deletions(-)
delete mode 100644 drivers/media/platform/omap24xxcam-dma.c
delete mode 100644 drivers/media/platform/omap24xxcam.c
delete mode 100644 drivers/media/platform/omap24xxcam.h
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 181c768..36bcad3 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -90,13 +90,6 @@ config VIDEO_M32R_AR_M64278
To compile this driver as a module, choose M here: the
module will be called arv.
-config VIDEO_OMAP2
- tristate "OMAP2 Camera Capture Interface driver"
- depends on VIDEO_DEV && ARCH_OMAP2
- select VIDEOBUF_DMA_SG
- ---help---
- This is a v4l2 driver for the TI OMAP2 camera capture interface
-
config VIDEO_OMAP3
tristate "OMAP 3 Camera support (EXPERIMENTAL)"
depends on OMAP_IOVMM && VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API && ARCH_OMAP3 && EXPERIMENTAL
diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
index baaa550..7228278 100644
--- a/drivers/media/platform/Makefile
+++ b/drivers/media/platform/Makefile
@@ -2,8 +2,6 @@
# Makefile for the video capture/playback device drivers.
#
-omap2cam-objs := omap24xxcam.o omap24xxcam-dma.o
-
obj-$(CONFIG_VIDEO_VINO) += indycam.o
obj-$(CONFIG_VIDEO_VINO) += vino.o
@@ -14,7 +12,6 @@ obj-$(CONFIG_VIDEO_VIA_CAMERA) += via-camera.o
obj-$(CONFIG_VIDEO_CAFE_CCIC) += marvell-ccic/
obj-$(CONFIG_VIDEO_MMP_CAMERA) += marvell-ccic/
-obj-$(CONFIG_VIDEO_OMAP2) += omap2cam.o
obj-$(CONFIG_VIDEO_OMAP3) += omap3isp/
obj-$(CONFIG_VIDEO_VIU) += fsl-viu.o
diff --git a/drivers/media/platform/omap24xxcam-dma.c b/drivers/media/platform/omap24xxcam-dma.c
deleted file mode 100644
index 9c00776..0000000
--- a/drivers/media/platform/omap24xxcam-dma.c
+++ /dev/null
@@ -1,601 +0,0 @@
-/*
- * drivers/media/platform/omap24xxcam-dma.c
- *
- * Copyright (C) 2004 MontaVista Software, Inc.
- * Copyright (C) 2004 Texas Instruments.
- * Copyright (C) 2007 Nokia Corporation.
- *
- * Contact: Sakari Ailus <sakari.ailus@xxxxxxxxx>
- *
- * Based on code from Andy Lowe <source@xxxxxxxxxx> and
- * David Cohen <david.cohen@xxxxxxxxxxx>.
- *
- * 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.
- *
- * This program is distributed in the hope that 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-
-#include <linux/kernel.h>
-#include <linux/io.h>
-#include <linux/scatterlist.h>
-
-#include "omap24xxcam.h"
-
-/*
- *
- * DMA hardware.
- *
- */
-
-/* Ack all interrupt on CSR and IRQSTATUS_L0 */
-static void omap24xxcam_dmahw_ack_all(void __iomem *base)
-{
- u32 csr;
- int i;
-
- for (i = 0; i < NUM_CAMDMA_CHANNELS; ++i) {
- csr = omap24xxcam_reg_in(base, CAMDMA_CSR(i));
- /* ack interrupt in CSR */
- omap24xxcam_reg_out(base, CAMDMA_CSR(i), csr);
- }
- omap24xxcam_reg_out(base, CAMDMA_IRQSTATUS_L0, 0xf);
-}
-
-/* Ack dmach on CSR and IRQSTATUS_L0 */
-static u32 omap24xxcam_dmahw_ack_ch(void __iomem *base, int dmach)
-{
- u32 csr;
-
- csr = omap24xxcam_reg_in(base, CAMDMA_CSR(dmach));
- /* ack interrupt in CSR */
- omap24xxcam_reg_out(base, CAMDMA_CSR(dmach), csr);
- /* ack interrupt in IRQSTATUS */
- omap24xxcam_reg_out(base, CAMDMA_IRQSTATUS_L0, (1 << dmach));
-
- return csr;
-}
-
-static int omap24xxcam_dmahw_running(void __iomem *base, int dmach)
-{
- return omap24xxcam_reg_in(base, CAMDMA_CCR(dmach)) & CAMDMA_CCR_ENABLE;
-}
-
-static void omap24xxcam_dmahw_transfer_setup(void __iomem *base, int dmach,
- dma_addr_t start, u32 len)
-{
- omap24xxcam_reg_out(base, CAMDMA_CCR(dmach),
- CAMDMA_CCR_SEL_SRC_DST_SYNC
- | CAMDMA_CCR_BS
- | CAMDMA_CCR_DST_AMODE_POST_INC
- | CAMDMA_CCR_SRC_AMODE_POST_INC
- | CAMDMA_CCR_FS
- | CAMDMA_CCR_WR_ACTIVE
- | CAMDMA_CCR_RD_ACTIVE
- | CAMDMA_CCR_SYNCHRO_CAMERA);
- omap24xxcam_reg_out(base, CAMDMA_CLNK_CTRL(dmach), 0);
- omap24xxcam_reg_out(base, CAMDMA_CEN(dmach), len);
- omap24xxcam_reg_out(base, CAMDMA_CFN(dmach), 1);
- omap24xxcam_reg_out(base, CAMDMA_CSDP(dmach),
- CAMDMA_CSDP_WRITE_MODE_POSTED
- | CAMDMA_CSDP_DST_BURST_EN_32
- | CAMDMA_CSDP_DST_PACKED
- | CAMDMA_CSDP_SRC_BURST_EN_32
- | CAMDMA_CSDP_SRC_PACKED
- | CAMDMA_CSDP_DATA_TYPE_8BITS);
- omap24xxcam_reg_out(base, CAMDMA_CSSA(dmach), 0);
- omap24xxcam_reg_out(base, CAMDMA_CDSA(dmach), start);
- omap24xxcam_reg_out(base, CAMDMA_CSEI(dmach), 0);
- omap24xxcam_reg_out(base, CAMDMA_CSFI(dmach), DMA_THRESHOLD);
- omap24xxcam_reg_out(base, CAMDMA_CDEI(dmach), 0);
- omap24xxcam_reg_out(base, CAMDMA_CDFI(dmach), 0);
- omap24xxcam_reg_out(base, CAMDMA_CSR(dmach),
- CAMDMA_CSR_MISALIGNED_ERR
- | CAMDMA_CSR_SECURE_ERR
- | CAMDMA_CSR_TRANS_ERR
- | CAMDMA_CSR_BLOCK
- | CAMDMA_CSR_DROP);
- omap24xxcam_reg_out(base, CAMDMA_CICR(dmach),
- CAMDMA_CICR_MISALIGNED_ERR_IE
- | CAMDMA_CICR_SECURE_ERR_IE
- | CAMDMA_CICR_TRANS_ERR_IE
- | CAMDMA_CICR_BLOCK_IE
- | CAMDMA_CICR_DROP_IE);
-}
-
-static void omap24xxcam_dmahw_transfer_start(void __iomem *base, int dmach)
-{
- omap24xxcam_reg_out(base, CAMDMA_CCR(dmach),
- CAMDMA_CCR_SEL_SRC_DST_SYNC
- | CAMDMA_CCR_BS
- | CAMDMA_CCR_DST_AMODE_POST_INC
- | CAMDMA_CCR_SRC_AMODE_POST_INC
- | CAMDMA_CCR_ENABLE
- | CAMDMA_CCR_FS
- | CAMDMA_CCR_SYNCHRO_CAMERA);
-}
-
-static void omap24xxcam_dmahw_transfer_chain(void __iomem *base, int dmach,
- int free_dmach)
-{
- int prev_dmach, ch;
-
- if (dmach == 0)
- prev_dmach = NUM_CAMDMA_CHANNELS - 1;
- else
- prev_dmach = dmach - 1;
- omap24xxcam_reg_out(base, CAMDMA_CLNK_CTRL(prev_dmach),
- CAMDMA_CLNK_CTRL_ENABLE_LNK | dmach);
- /* Did we chain the DMA transfer before the previous one
- * finished?
- */
- ch = (dmach + free_dmach) % NUM_CAMDMA_CHANNELS;
- while (!(omap24xxcam_reg_in(base, CAMDMA_CCR(ch))
- & CAMDMA_CCR_ENABLE)) {
- if (ch == dmach) {
- /* The previous transfer has ended and this one
- * hasn't started, so we must not have chained
- * to the previous one in time. We'll have to
- * start it now.
- */
- omap24xxcam_dmahw_transfer_start(base, dmach);
- break;
- } else
- ch = (ch + 1) % NUM_CAMDMA_CHANNELS;
- }
-}
-
-/* Abort all chained DMA transfers. After all transfers have been
- * aborted and the DMA controller is idle, the completion routines for
- * any aborted transfers will be called in sequence. The DMA
- * controller may not be idle after this routine completes, because
- * the completion routines might start new transfers.
- */
-static void omap24xxcam_dmahw_abort_ch(void __iomem *base, int dmach)
-{
- /* mask all interrupts from this channel */
- omap24xxcam_reg_out(base, CAMDMA_CICR(dmach), 0);
- /* unlink this channel */
- omap24xxcam_reg_merge(base, CAMDMA_CLNK_CTRL(dmach), 0,
- CAMDMA_CLNK_CTRL_ENABLE_LNK);
- /* disable this channel */
- omap24xxcam_reg_merge(base, CAMDMA_CCR(dmach), 0, CAMDMA_CCR_ENABLE);
-}
-
-static void omap24xxcam_dmahw_init(void __iomem *base)
-{
- omap24xxcam_reg_out(base, CAMDMA_OCP_SYSCONFIG,
- CAMDMA_OCP_SYSCONFIG_MIDLEMODE_FSTANDBY
- | CAMDMA_OCP_SYSCONFIG_SIDLEMODE_FIDLE
- | CAMDMA_OCP_SYSCONFIG_AUTOIDLE);
-
- omap24xxcam_reg_merge(base, CAMDMA_GCR, 0x10,
- CAMDMA_GCR_MAX_CHANNEL_FIFO_DEPTH);
-
- omap24xxcam_reg_out(base, CAMDMA_IRQENABLE_L0, 0xf);
-}
-
-/*
- *
- * Individual DMA channel handling.
- *
- */
-
-/* Start a DMA transfer from the camera to memory.
- * Returns zero if the transfer was successfully started, or non-zero if all
- * DMA channels are already in use or starting is currently inhibited.
- */
-static int omap24xxcam_dma_start(struct omap24xxcam_dma *dma, dma_addr_t start,
- u32 len, dma_callback_t callback, void *arg)
-{
- unsigned long flags;
- int dmach;
-
- spin_lock_irqsave(&dma->lock, flags);
-
- if (!dma->free_dmach || atomic_read(&dma->dma_stop)) {
- spin_unlock_irqrestore(&dma->lock, flags);
- return -EBUSY;
- }
-
- dmach = dma->next_dmach;
-
- dma->ch_state[dmach].callback = callback;
- dma->ch_state[dmach].arg = arg;
-
- omap24xxcam_dmahw_transfer_setup(dma->base, dmach, start, len);
-
- /* We're ready to start the DMA transfer. */
-
- if (dma->free_dmach < NUM_CAMDMA_CHANNELS) {
- /* A transfer is already in progress, so try to chain to it. */
- omap24xxcam_dmahw_transfer_chain(dma->base, dmach,
- dma->free_dmach);
- } else {
- /* No transfer is in progress, so we'll just start this one
- * now.
- */
- omap24xxcam_dmahw_transfer_start(dma->base, dmach);
- }
-
- dma->next_dmach = (dma->next_dmach + 1) % NUM_CAMDMA_CHANNELS;
- dma->free_dmach--;
-
- spin_unlock_irqrestore(&dma->lock, flags);
-
- return 0;
-}
-
-/* Abort all chained DMA transfers. After all transfers have been
- * aborted and the DMA controller is idle, the completion routines for
- * any aborted transfers will be called in sequence. The DMA
- * controller may not be idle after this routine completes, because
- * the completion routines might start new transfers.
- */
-static void omap24xxcam_dma_abort(struct omap24xxcam_dma *dma, u32 csr)
-{
- unsigned long flags;
- int dmach, i, free_dmach;
- dma_callback_t callback;
- void *arg;
-
- spin_lock_irqsave(&dma->lock, flags);
-
- /* stop any DMA transfers in progress */
- dmach = (dma->next_dmach + dma->free_dmach) % NUM_CAMDMA_CHANNELS;
- for (i = 0; i < NUM_CAMDMA_CHANNELS; i++) {
- omap24xxcam_dmahw_abort_ch(dma->base, dmach);
- dmach = (dmach + 1) % NUM_CAMDMA_CHANNELS;
- }
-
- /* We have to be careful here because the callback routine
- * might start a new DMA transfer, and we only want to abort
- * transfers that were started before this routine was called.
- */
- free_dmach = dma->free_dmach;
- while ((dma->free_dmach < NUM_CAMDMA_CHANNELS) &&
- (free_dmach < NUM_CAMDMA_CHANNELS)) {
- dmach = (dma->next_dmach + dma->free_dmach)
- % NUM_CAMDMA_CHANNELS;
- callback = dma->ch_state[dmach].callback;
- arg = dma->ch_state[dmach].arg;
- dma->free_dmach++;
- free_dmach++;
- if (callback) {
- /* leave interrupts disabled during callback */
- spin_unlock(&dma->lock);
- (*callback) (dma, csr, arg);
- spin_lock(&dma->lock);
- }
- }
-
- spin_unlock_irqrestore(&dma->lock, flags);
-}
-
-/* Abort all chained DMA transfers. After all transfers have been
- * aborted and the DMA controller is idle, the completion routines for
- * any aborted transfers will be called in sequence. If the completion
- * routines attempt to start a new DMA transfer it will fail, so the
- * DMA controller will be idle after this routine completes.
- */
-static void omap24xxcam_dma_stop(struct omap24xxcam_dma *dma, u32 csr)
-{
- atomic_inc(&dma->dma_stop);
- omap24xxcam_dma_abort(dma, csr);
- atomic_dec(&dma->dma_stop);
-}
-
-/* Camera DMA interrupt service routine. */
-void omap24xxcam_dma_isr(struct omap24xxcam_dma *dma)
-{
- int dmach;
- dma_callback_t callback;
- void *arg;
- u32 csr;
- const u32 csr_error = CAMDMA_CSR_MISALIGNED_ERR
- | CAMDMA_CSR_SUPERVISOR_ERR | CAMDMA_CSR_SECURE_ERR
- | CAMDMA_CSR_TRANS_ERR | CAMDMA_CSR_DROP;
-
- spin_lock(&dma->lock);
-
- if (dma->free_dmach == NUM_CAMDMA_CHANNELS) {
- /* A camera DMA interrupt occurred while all channels
- * are idle, so we'll acknowledge the interrupt in the
- * IRQSTATUS register and exit.
- */
- omap24xxcam_dmahw_ack_all(dma->base);
- spin_unlock(&dma->lock);
- return;
- }
-
- while (dma->free_dmach < NUM_CAMDMA_CHANNELS) {
- dmach = (dma->next_dmach + dma->free_dmach)
- % NUM_CAMDMA_CHANNELS;
- if (omap24xxcam_dmahw_running(dma->base, dmach)) {
- /* This buffer hasn't finished yet, so we're done. */
- break;
- }
- csr = omap24xxcam_dmahw_ack_ch(dma->base, dmach);
- if (csr & csr_error) {
- /* A DMA error occurred, so stop all DMA
- * transfers in progress.
- */
- spin_unlock(&dma->lock);
- omap24xxcam_dma_stop(dma, csr);
- return;
- } else {
- callback = dma->ch_state[dmach].callback;
- arg = dma->ch_state[dmach].arg;
- dma->free_dmach++;
- if (callback) {
- spin_unlock(&dma->lock);
- (*callback) (dma, csr, arg);
- spin_lock(&dma->lock);
- }
- }
- }
-
- spin_unlock(&dma->lock);
-
- omap24xxcam_sgdma_process(
- container_of(dma, struct omap24xxcam_sgdma, dma));
-}
-
-void omap24xxcam_dma_hwinit(struct omap24xxcam_dma *dma)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&dma->lock, flags);
-
- omap24xxcam_dmahw_init(dma->base);
-
- spin_unlock_irqrestore(&dma->lock, flags);
-}
-
-static void omap24xxcam_dma_init(struct omap24xxcam_dma *dma,
- void __iomem *base)
-{
- int ch;
-
- /* group all channels on DMA IRQ0 and unmask irq */
- spin_lock_init(&dma->lock);
- dma->base = base;
- dma->free_dmach = NUM_CAMDMA_CHANNELS;
- dma->next_dmach = 0;
- for (ch = 0; ch < NUM_CAMDMA_CHANNELS; ch++) {
- dma->ch_state[ch].callback = NULL;
- dma->ch_state[ch].arg = NULL;
- }
-}
-
-/*
- *
- * Scatter-gather DMA.
- *
- * High-level DMA construct for transferring whole picture frames to
- * memory that is discontinuous.
- *
- */
-
-/* DMA completion routine for the scatter-gather DMA fragments. */
-static void omap24xxcam_sgdma_callback(struct omap24xxcam_dma *dma, u32 csr,
- void *arg)
-{
- struct omap24xxcam_sgdma *sgdma =
- container_of(dma, struct omap24xxcam_sgdma, dma);
- int sgslot = (int)arg;
- struct sgdma_state *sg_state;
- const u32 csr_error = CAMDMA_CSR_MISALIGNED_ERR
- | CAMDMA_CSR_SUPERVISOR_ERR | CAMDMA_CSR_SECURE_ERR
- | CAMDMA_CSR_TRANS_ERR | CAMDMA_CSR_DROP;
-
- spin_lock(&sgdma->lock);
-
- /* We got an interrupt, we can remove the timer */
- del_timer(&sgdma->reset_timer);
-
- sg_state = sgdma->sg_state + sgslot;
- if (!sg_state->queued_sglist) {
- spin_unlock(&sgdma->lock);
- printk(KERN_ERR "%s: sgdma completed when none queued!\n",
- __func__);
- return;
- }
-
- sg_state->csr |= csr;
- if (!--sg_state->queued_sglist) {
- /* Queue for this sglist is empty, so check to see if we're
- * done.
- */
- if ((sg_state->next_sglist == sg_state->sglen)
- || (sg_state->csr & csr_error)) {
- sgdma_callback_t callback = sg_state->callback;
- void *arg = sg_state->arg;
- u32 sg_csr = sg_state->csr;
- /* All done with this sglist */
- sgdma->free_sgdma++;
- if (callback) {
- spin_unlock(&sgdma->lock);
- (*callback) (sgdma, sg_csr, arg);
- return;
- }
- }
- }
-
- spin_unlock(&sgdma->lock);
-}
-
-/* Start queued scatter-gather DMA transfers. */
-void omap24xxcam_sgdma_process(struct omap24xxcam_sgdma *sgdma)
-{
- unsigned long flags;
- int queued_sgdma, sgslot;
- struct sgdma_state *sg_state;
- const u32 csr_error = CAMDMA_CSR_MISALIGNED_ERR
- | CAMDMA_CSR_SUPERVISOR_ERR | CAMDMA_CSR_SECURE_ERR
- | CAMDMA_CSR_TRANS_ERR | CAMDMA_CSR_DROP;
-
- spin_lock_irqsave(&sgdma->lock, flags);
-
- queued_sgdma = NUM_SG_DMA - sgdma->free_sgdma;
- sgslot = (sgdma->next_sgdma + sgdma->free_sgdma) % NUM_SG_DMA;
- while (queued_sgdma > 0) {
- sg_state = sgdma->sg_state + sgslot;
- while ((sg_state->next_sglist < sg_state->sglen) &&
- !(sg_state->csr & csr_error)) {
- const struct scatterlist *sglist;
- unsigned int len;
-
- sglist = sg_state->sglist + sg_state->next_sglist;
- /* try to start the next DMA transfer */
- if (sg_state->next_sglist + 1 == sg_state->sglen) {
- /*
- * On the last sg, we handle the case where
- * cam->img.pix.sizeimage % PAGE_ALIGN != 0
- */
- len = sg_state->len - sg_state->bytes_read;
- } else {
- len = sg_dma_len(sglist);
- }
-
- if (omap24xxcam_dma_start(&sgdma->dma,
- sg_dma_address(sglist),
- len,
- omap24xxcam_sgdma_callback,
- (void *)sgslot)) {
- /* DMA start failed */
- spin_unlock_irqrestore(&sgdma->lock, flags);
- return;
- } else {
- unsigned long expires;
- /* DMA start was successful */
- sg_state->next_sglist++;
- sg_state->bytes_read += len;
- sg_state->queued_sglist++;
-
- /* We start the reset timer */
- expires = jiffies + HZ;
- mod_timer(&sgdma->reset_timer, expires);
- }
- }
- queued_sgdma--;
- sgslot = (sgslot + 1) % NUM_SG_DMA;
- }
-
- spin_unlock_irqrestore(&sgdma->lock, flags);
-}
-
-/*
- * Queue a scatter-gather DMA transfer from the camera to memory.
- * Returns zero if the transfer was successfully queued, or non-zero
- * if all of the scatter-gather slots are already in use.
- */
-int omap24xxcam_sgdma_queue(struct omap24xxcam_sgdma *sgdma,
- const struct scatterlist *sglist, int sglen,
- int len, sgdma_callback_t callback, void *arg)
-{
- unsigned long flags;
- struct sgdma_state *sg_state;
-
- if ((sglen < 0) || ((sglen > 0) && !sglist))
- return -EINVAL;
-
- spin_lock_irqsave(&sgdma->lock, flags);
-
- if (!sgdma->free_sgdma) {
- spin_unlock_irqrestore(&sgdma->lock, flags);
- return -EBUSY;
- }
-
- sg_state = sgdma->sg_state + sgdma->next_sgdma;
-
- sg_state->sglist = sglist;
- sg_state->sglen = sglen;
- sg_state->next_sglist = 0;
- sg_state->bytes_read = 0;
- sg_state->len = len;
- sg_state->queued_sglist = 0;
- sg_state->csr = 0;
- sg_state->callback = callback;
- sg_state->arg = arg;
-
- sgdma->next_sgdma = (sgdma->next_sgdma + 1) % NUM_SG_DMA;
- sgdma->free_sgdma--;
-
- spin_unlock_irqrestore(&sgdma->lock, flags);
-
- omap24xxcam_sgdma_process(sgdma);
-
- return 0;
-}
-
-/* Sync scatter-gather DMA by aborting any DMA transfers currently in progress.
- * Any queued scatter-gather DMA transactions that have not yet been started
- * will remain queued. The DMA controller will be idle after this routine
- * completes. When the scatter-gather queue is restarted, the next
- * scatter-gather DMA transfer will begin at the start of a new transaction.
- */
-void omap24xxcam_sgdma_sync(struct omap24xxcam_sgdma *sgdma)
-{
- unsigned long flags;
- int sgslot;
- struct sgdma_state *sg_state;
- u32 csr = CAMDMA_CSR_TRANS_ERR;
-
- /* stop any DMA transfers in progress */
- omap24xxcam_dma_stop(&sgdma->dma, csr);
-
- spin_lock_irqsave(&sgdma->lock, flags);
-
- if (sgdma->free_sgdma < NUM_SG_DMA) {
- sgslot = (sgdma->next_sgdma + sgdma->free_sgdma) % NUM_SG_DMA;
- sg_state = sgdma->sg_state + sgslot;
- if (sg_state->next_sglist != 0) {
- /* This DMA transfer was in progress, so abort it. */
- sgdma_callback_t callback = sg_state->callback;
- void *arg = sg_state->arg;
- sgdma->free_sgdma++;
- if (callback) {
- /* leave interrupts masked */
- spin_unlock(&sgdma->lock);
- (*callback) (sgdma, csr, arg);
- spin_lock(&sgdma->lock);
- }
- }
- }
-
- spin_unlock_irqrestore(&sgdma->lock, flags);
-}
-
-void omap24xxcam_sgdma_init(struct omap24xxcam_sgdma *sgdma,
- void __iomem *base,
- void (*reset_callback)(unsigned long data),
- unsigned long reset_callback_data)
-{
- int sg;
-
- spin_lock_init(&sgdma->lock);
- sgdma->free_sgdma = NUM_SG_DMA;
- sgdma->next_sgdma = 0;
- for (sg = 0; sg < NUM_SG_DMA; sg++) {
- sgdma->sg_state[sg].sglen = 0;
- sgdma->sg_state[sg].next_sglist = 0;
- sgdma->sg_state[sg].bytes_read = 0;
- sgdma->sg_state[sg].queued_sglist = 0;
- sgdma->sg_state[sg].csr = 0;
- sgdma->sg_state[sg].callback = NULL;
- sgdma->sg_state[sg].arg = NULL;
- }
-
- omap24xxcam_dma_init(&sgdma->dma, base);
- setup_timer(&sgdma->reset_timer, reset_callback, reset_callback_data);
-}
diff --git a/drivers/media/platform/omap24xxcam.c b/drivers/media/platform/omap24xxcam.c
deleted file mode 100644
index 70f45c3..0000000
--- a/drivers/media/platform/omap24xxcam.c
+++ /dev/null
@@ -1,1881 +0,0 @@
-/*
- * drivers/media/platform/omap24xxcam.c
- *
- * OMAP 2 camera block driver.
- *
- * Copyright (C) 2004 MontaVista Software, Inc.
- * Copyright (C) 2004 Texas Instruments.
- * Copyright (C) 2007-2008 Nokia Corporation.
- *
- * Contact: Sakari Ailus <sakari.ailus@xxxxxxxxx>
- *
- * Based on code from Andy Lowe <source@xxxxxxxxxx>
- *
- * 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.
- *
- * This program is distributed in the hope that 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/videodev2.h>
-#include <linux/pci.h> /* needed for videobufs */
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/module.h>
-
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
-
-#include "omap24xxcam.h"
-
-#define OMAP24XXCAM_VERSION "0.0.1"
-
-#define RESET_TIMEOUT_NS 10000
-
-static void omap24xxcam_reset(struct omap24xxcam_device *cam);
-static int omap24xxcam_sensor_if_enable(struct omap24xxcam_device *cam);
-static void omap24xxcam_device_unregister(struct v4l2_int_device *s);
-static int omap24xxcam_remove(struct platform_device *pdev);
-
-/* module parameters */
-static int video_nr = -1; /* video device minor (-1 ==> auto assign) */
-/*
- * Maximum amount of memory to use for capture buffers.
- * Default is 4800KB, enough to double-buffer SXGA.
- */
-static int capture_mem = 1280 * 960 * 2 * 2;
-
-static struct v4l2_int_device omap24xxcam;
-
-/*
- *
- * Clocks.
- *
- */
-
-static void omap24xxcam_clock_put(struct omap24xxcam_device *cam)
-{
- if (cam->ick != NULL && !IS_ERR(cam->ick))
- clk_put(cam->ick);
- if (cam->fck != NULL && !IS_ERR(cam->fck))
- clk_put(cam->fck);
-
- cam->ick = cam->fck = NULL;
-}
-
-static int omap24xxcam_clock_get(struct omap24xxcam_device *cam)
-{
- int rval = 0;
-
- cam->fck = clk_get(cam->dev, "fck");
- if (IS_ERR(cam->fck)) {
- dev_err(cam->dev, "can't get camera fck");
- rval = PTR_ERR(cam->fck);
- omap24xxcam_clock_put(cam);
- return rval;
- }
-
- cam->ick = clk_get(cam->dev, "ick");
- if (IS_ERR(cam->ick)) {
- dev_err(cam->dev, "can't get camera ick");
- rval = PTR_ERR(cam->ick);
- omap24xxcam_clock_put(cam);
- }
-
- return rval;
-}
-
-static void omap24xxcam_clock_on(struct omap24xxcam_device *cam)
-{
- clk_enable(cam->fck);
- clk_enable(cam->ick);
-}
-
-static void omap24xxcam_clock_off(struct omap24xxcam_device *cam)
-{
- clk_disable(cam->fck);
- clk_disable(cam->ick);
-}
-
-/*
- *
- * Camera core
- *
- */
-
-/*
- * Set xclk.
- *
- * To disable xclk, use value zero.
- */
-static void omap24xxcam_core_xclk_set(const struct omap24xxcam_device *cam,
- u32 xclk)
-{
- if (xclk) {
- u32 divisor = CAM_MCLK / xclk;
-
- if (divisor == 1)
- omap24xxcam_reg_out(cam->mmio_base + CC_REG_OFFSET,
- CC_CTRL_XCLK,
- CC_CTRL_XCLK_DIV_BYPASS);
- else
- omap24xxcam_reg_out(cam->mmio_base + CC_REG_OFFSET,
- CC_CTRL_XCLK, divisor);
- } else
- omap24xxcam_reg_out(cam->mmio_base + CC_REG_OFFSET,
- CC_CTRL_XCLK, CC_CTRL_XCLK_DIV_STABLE_LOW);
-}
-
-static void omap24xxcam_core_hwinit(const struct omap24xxcam_device *cam)
-{
- /*
- * Setting the camera core AUTOIDLE bit causes problems with frame
- * synchronization, so we will clear the AUTOIDLE bit instead.
- */
- omap24xxcam_reg_out(cam->mmio_base + CC_REG_OFFSET, CC_SYSCONFIG,
- CC_SYSCONFIG_AUTOIDLE);
-
- /* program the camera interface DMA packet size */
- omap24xxcam_reg_out(cam->mmio_base + CC_REG_OFFSET, CC_CTRL_DMA,
- CC_CTRL_DMA_EN | (DMA_THRESHOLD / 4 - 1));
-
- /* enable camera core error interrupts */
- omap24xxcam_reg_out(cam->mmio_base + CC_REG_OFFSET, CC_IRQENABLE,
- CC_IRQENABLE_FW_ERR_IRQ
- | CC_IRQENABLE_FSC_ERR_IRQ
- | CC_IRQENABLE_SSC_ERR_IRQ
- | CC_IRQENABLE_FIFO_OF_IRQ);
-}
-
-/*
- * Enable the camera core.
- *
- * Data transfer to the camera DMA starts from next starting frame.
- */
-static void omap24xxcam_core_enable(const struct omap24xxcam_device *cam)
-{
-
- omap24xxcam_reg_out(cam->mmio_base + CC_REG_OFFSET, CC_CTRL,
- cam->cc_ctrl);
-}
-
-/*
- * Disable camera core.
- *
- * The data transfer will be stopped immediately (CC_CTRL_CC_RST). The
- * core internal state machines will be reset. Use
- * CC_CTRL_CC_FRAME_TRIG instead if you want to transfer the current
- * frame completely.
- */
-static void omap24xxcam_core_disable(const struct omap24xxcam_device *cam)
-{
- omap24xxcam_reg_out(cam->mmio_base + CC_REG_OFFSET, CC_CTRL,
- CC_CTRL_CC_RST);
-}
-
-/* Interrupt service routine for camera core interrupts. */
-static void omap24xxcam_core_isr(struct omap24xxcam_device *cam)
-{
- u32 cc_irqstatus;
- const u32 cc_irqstatus_err =
- CC_IRQSTATUS_FW_ERR_IRQ
- | CC_IRQSTATUS_FSC_ERR_IRQ
- | CC_IRQSTATUS_SSC_ERR_IRQ
- | CC_IRQSTATUS_FIFO_UF_IRQ
- | CC_IRQSTATUS_FIFO_OF_IRQ;
-
- cc_irqstatus = omap24xxcam_reg_in(cam->mmio_base + CC_REG_OFFSET,
- CC_IRQSTATUS);
- omap24xxcam_reg_out(cam->mmio_base + CC_REG_OFFSET, CC_IRQSTATUS,
- cc_irqstatus);
-
- if (cc_irqstatus & cc_irqstatus_err
- && !atomic_read(&cam->in_reset)) {
- dev_dbg(cam->dev, "resetting camera, cc_irqstatus 0x%x\n",
- cc_irqstatus);
- omap24xxcam_reset(cam);
- }
-}
-
-/*
- *
- * videobuf_buffer handling.
- *
- * Memory for mmapped videobuf_buffers is not allocated
- * conventionally, but by several kmalloc allocations and then
- * creating the scatterlist on our own. User-space buffers are handled
- * normally.
- *
- */
-
-/*
- * Free the memory-mapped buffer memory allocated for a
- * videobuf_buffer and the associated scatterlist.
- */
-static void omap24xxcam_vbq_free_mmap_buffer(struct videobuf_buffer *vb)
-{
- struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
- size_t alloc_size;
- struct page *page;
- int i;
-
- if (dma->sglist == NULL)
- return;
-
- i = dma->sglen;
- while (i) {
- i--;
- alloc_size = sg_dma_len(&dma->sglist[i]);
- page = sg_page(&dma->sglist[i]);
- do {
- ClearPageReserved(page++);
- } while (alloc_size -= PAGE_SIZE);
- __free_pages(sg_page(&dma->sglist[i]),
- get_order(sg_dma_len(&dma->sglist[i])));
- }
-
- kfree(dma->sglist);
- dma->sglist = NULL;
-}
-
-/* Release all memory related to the videobuf_queue. */
-static void omap24xxcam_vbq_free_mmap_buffers(struct videobuf_queue *vbq)
-{
- int i;
-
- mutex_lock(&vbq->vb_lock);
-
- for (i = 0; i < VIDEO_MAX_FRAME; i++) {
- if (NULL == vbq->bufs[i])
- continue;
- if (V4L2_MEMORY_MMAP != vbq->bufs[i]->memory)
- continue;
- vbq->ops->buf_release(vbq, vbq->bufs[i]);
- omap24xxcam_vbq_free_mmap_buffer(vbq->bufs[i]);
- kfree(vbq->bufs[i]);
- vbq->bufs[i] = NULL;
- }
-
- mutex_unlock(&vbq->vb_lock);
-
- videobuf_mmap_free(vbq);
-}
-
-/*
- * Allocate physically as contiguous as possible buffer for video
- * frame and allocate and build DMA scatter-gather list for it.
- */
-static int omap24xxcam_vbq_alloc_mmap_buffer(struct videobuf_buffer *vb)
-{
- unsigned int order;
- size_t alloc_size, size = vb->bsize; /* vb->bsize is page aligned */
- struct page *page;
- int max_pages, err = 0, i = 0;
- struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
-
- /*
- * allocate maximum size scatter-gather list. Note this is
- * overhead. We may not use as many entries as we allocate
- */
- max_pages = vb->bsize >> PAGE_SHIFT;
- dma->sglist = kcalloc(max_pages, sizeof(*dma->sglist), GFP_KERNEL);
- if (dma->sglist == NULL) {
- err = -ENOMEM;
- goto out;
- }
-
- while (size) {
- order = get_order(size);
- /*
- * do not over-allocate even if we would get larger
- * contiguous chunk that way
- */
- if ((PAGE_SIZE << order) > size)
- order--;
-
- /* try to allocate as many contiguous pages as possible */
- page = alloc_pages(GFP_KERNEL, order);
- /* if allocation fails, try to allocate smaller amount */
- while (page == NULL) {
- order--;
- page = alloc_pages(GFP_KERNEL, order);
- if (page == NULL && !order) {
- err = -ENOMEM;
- goto out;
- }
- }
- size -= (PAGE_SIZE << order);
-
- /* append allocated chunk of pages into scatter-gather list */
- sg_set_page(&dma->sglist[i], page, PAGE_SIZE << order, 0);
- dma->sglen++;
- i++;
-
- alloc_size = (PAGE_SIZE << order);
-
- /* clear pages before giving them to user space */
- memset(page_address(page), 0, alloc_size);
-
- /* mark allocated pages reserved */
- do {
- SetPageReserved(page++);
- } while (alloc_size -= PAGE_SIZE);
- }
- /*
- * REVISIT: not fully correct to assign nr_pages == sglen but
- * video-buf is passing nr_pages for e.g. unmap_sg calls
- */
- dma->nr_pages = dma->sglen;
- dma->direction = PCI_DMA_FROMDEVICE;
-
- return 0;
-
-out:
- omap24xxcam_vbq_free_mmap_buffer(vb);
- return err;
-}
-
-static int omap24xxcam_vbq_alloc_mmap_buffers(struct videobuf_queue *vbq,
- unsigned int count)
-{
- int i, err = 0;
- struct omap24xxcam_fh *fh =
- container_of(vbq, struct omap24xxcam_fh, vbq);
-
- mutex_lock(&vbq->vb_lock);
-
- for (i = 0; i < count; i++) {
- err = omap24xxcam_vbq_alloc_mmap_buffer(vbq->bufs[i]);
- if (err)
- goto out;
- dev_dbg(fh->cam->dev, "sglen is %d for buffer %d\n",
- videobuf_to_dma(vbq->bufs[i])->sglen, i);
- }
-
- mutex_unlock(&vbq->vb_lock);
-
- return 0;
-out:
- while (i) {
- i--;
- omap24xxcam_vbq_free_mmap_buffer(vbq->bufs[i]);
- }
-
- mutex_unlock(&vbq->vb_lock);
-
- return err;
-}
-
-/*
- * This routine is called from interrupt context when a scatter-gather DMA
- * transfer of a videobuf_buffer completes.
- */
-static void omap24xxcam_vbq_complete(struct omap24xxcam_sgdma *sgdma,
- u32 csr, void *arg)
-{
- struct omap24xxcam_device *cam =
- container_of(sgdma, struct omap24xxcam_device, sgdma);
- struct omap24xxcam_fh *fh = cam->streaming->private_data;
- struct videobuf_buffer *vb = (struct videobuf_buffer *)arg;
- const u32 csr_error = CAMDMA_CSR_MISALIGNED_ERR
- | CAMDMA_CSR_SUPERVISOR_ERR | CAMDMA_CSR_SECURE_ERR
- | CAMDMA_CSR_TRANS_ERR | CAMDMA_CSR_DROP;
- unsigned long flags;
-
- spin_lock_irqsave(&cam->core_enable_disable_lock, flags);
- if (--cam->sgdma_in_queue == 0)
- omap24xxcam_core_disable(cam);
- spin_unlock_irqrestore(&cam->core_enable_disable_lock, flags);
-
- do_gettimeofday(&vb->ts);
- vb->field_count = atomic_add_return(2, &fh->field_count);
- if (csr & csr_error) {
- vb->state = VIDEOBUF_ERROR;
- if (!atomic_read(&fh->cam->in_reset)) {
- dev_dbg(cam->dev, "resetting camera, csr 0x%x\n", csr);
- omap24xxcam_reset(cam);
- }
- } else
- vb->state = VIDEOBUF_DONE;
- wake_up(&vb->done);
-}
-
-static void omap24xxcam_vbq_release(struct videobuf_queue *vbq,
- struct videobuf_buffer *vb)
-{
- struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
-
- /* wait for buffer, especially to get out of the sgdma queue */
- videobuf_waiton(vbq, vb, 0, 0);
- if (vb->memory == V4L2_MEMORY_MMAP) {
- dma_unmap_sg(vbq->dev, dma->sglist, dma->sglen,
- dma->direction);
- dma->direction = DMA_NONE;
- } else {
- videobuf_dma_unmap(vbq->dev, videobuf_to_dma(vb));
- videobuf_dma_free(videobuf_to_dma(vb));
- }
-
- vb->state = VIDEOBUF_NEEDS_INIT;
-}
-
-/*
- * Limit the number of available kernel image capture buffers based on the
- * number requested, the currently selected image size, and the maximum
- * amount of memory permitted for kernel capture buffers.
- */
-static int omap24xxcam_vbq_setup(struct videobuf_queue *vbq, unsigned int *cnt,
- unsigned int *size)
-{
- struct omap24xxcam_fh *fh = vbq->priv_data;
-
- if (*cnt <= 0)
- *cnt = VIDEO_MAX_FRAME; /* supply a default number of buffers */
-
- if (*cnt > VIDEO_MAX_FRAME)
- *cnt = VIDEO_MAX_FRAME;
-
- *size = fh->pix.sizeimage;
-
- /* accessing fh->cam->capture_mem is ok, it's constant */
- if (*size * *cnt > fh->cam->capture_mem)
- *cnt = fh->cam->capture_mem / *size;
-
- return 0;
-}
-
-static int omap24xxcam_dma_iolock(struct videobuf_queue *vbq,
- struct videobuf_dmabuf *dma)
-{
- int err = 0;
-
- dma->direction = PCI_DMA_FROMDEVICE;
- if (!dma_map_sg(vbq->dev, dma->sglist, dma->sglen, dma->direction)) {
- kfree(dma->sglist);
- dma->sglist = NULL;
- dma->sglen = 0;
- err = -EIO;
- }
-
- return err;
-}
-
-static int omap24xxcam_vbq_prepare(struct videobuf_queue *vbq,
- struct videobuf_buffer *vb,
- enum v4l2_field field)
-{
- struct omap24xxcam_fh *fh = vbq->priv_data;
- int err = 0;
-
- /*
- * Accessing pix here is okay since it's constant while
- * streaming is on (and we only get called then).
- */
- if (vb->baddr) {
- /* This is a userspace buffer. */
- if (fh->pix.sizeimage > vb->bsize) {
- /* The buffer isn't big enough. */
- err = -EINVAL;
- } else
- vb->size = fh->pix.sizeimage;
- } else {
- if (vb->state != VIDEOBUF_NEEDS_INIT) {
- /*
- * We have a kernel bounce buffer that has
- * already been allocated.
- */
- if (fh->pix.sizeimage > vb->size) {
- /*
- * The image size has been changed to
- * a larger size since this buffer was
- * allocated, so we need to free and
- * reallocate it.
- */
- omap24xxcam_vbq_release(vbq, vb);
- vb->size = fh->pix.sizeimage;
- }
- } else {
- /* We need to allocate a new kernel bounce buffer. */
- vb->size = fh->pix.sizeimage;
- }
- }
-
- if (err)
- return err;
-
- vb->width = fh->pix.width;
- vb->height = fh->pix.height;
- vb->field = field;
-
- if (vb->state == VIDEOBUF_NEEDS_INIT) {
- if (vb->memory == V4L2_MEMORY_MMAP)
- /*
- * we have built the scatter-gather list by ourself so
- * do the scatter-gather mapping as well
- */
- err = omap24xxcam_dma_iolock(vbq, videobuf_to_dma(vb));
- else
- err = videobuf_iolock(vbq, vb, NULL);
- }
-
- if (!err)
- vb->state = VIDEOBUF_PREPARED;
- else
- omap24xxcam_vbq_release(vbq, vb);
-
- return err;
-}
-
-static void omap24xxcam_vbq_queue(struct videobuf_queue *vbq,
- struct videobuf_buffer *vb)
-{
- struct omap24xxcam_fh *fh = vbq->priv_data;
- struct omap24xxcam_device *cam = fh->cam;
- enum videobuf_state state = vb->state;
- unsigned long flags;
- int err;
-
- /*
- * FIXME: We're marking the buffer active since we have no
- * pretty way of marking it active exactly when the
- * scatter-gather transfer starts.
- */
- vb->state = VIDEOBUF_ACTIVE;
-
- err = omap24xxcam_sgdma_queue(&fh->cam->sgdma,
- videobuf_to_dma(vb)->sglist,
- videobuf_to_dma(vb)->sglen, vb->size,
- omap24xxcam_vbq_complete, vb);
-
- if (!err) {
- spin_lock_irqsave(&cam->core_enable_disable_lock, flags);
- if (++cam->sgdma_in_queue == 1
- && !atomic_read(&cam->in_reset))
- omap24xxcam_core_enable(cam);
- spin_unlock_irqrestore(&cam->core_enable_disable_lock, flags);
- } else {
- /*
- * Oops. We're not supposed to get any errors here.
- * The only way we could get an error is if we ran out
- * of scatter-gather DMA slots, but we are supposed to
- * have at least as many scatter-gather DMA slots as
- * video buffers so that can't happen.
- */
- dev_err(cam->dev, "failed to queue a video buffer for dma!\n");
- dev_err(cam->dev, "likely a bug in the driver!\n");
- vb->state = state;
- }
-}
-
-static struct videobuf_queue_ops omap24xxcam_vbq_ops = {
- .buf_setup = omap24xxcam_vbq_setup,
- .buf_prepare = omap24xxcam_vbq_prepare,
- .buf_queue = omap24xxcam_vbq_queue,
- .buf_release = omap24xxcam_vbq_release,
-};
-
-/*
- *
- * OMAP main camera system
- *
- */
-
-/*
- * Reset camera block to power-on state.
- */
-static void omap24xxcam_poweron_reset(struct omap24xxcam_device *cam)
-{
- int max_loop = RESET_TIMEOUT_NS;
-
- /* Reset whole camera subsystem */
- omap24xxcam_reg_out(cam->mmio_base,
- CAM_SYSCONFIG,
- CAM_SYSCONFIG_SOFTRESET);
-
- /* Wait till it's finished */
- while (!(omap24xxcam_reg_in(cam->mmio_base, CAM_SYSSTATUS)
- & CAM_SYSSTATUS_RESETDONE)
- && --max_loop) {
- ndelay(1);
- }
-
- if (!(omap24xxcam_reg_in(cam->mmio_base, CAM_SYSSTATUS)
- & CAM_SYSSTATUS_RESETDONE))
- dev_err(cam->dev, "camera soft reset timeout\n");
-}
-
-/*
- * (Re)initialise the camera block.
- */
-static void omap24xxcam_hwinit(struct omap24xxcam_device *cam)
-{
- omap24xxcam_poweron_reset(cam);
-
- /* set the camera subsystem autoidle bit */
- omap24xxcam_reg_out(cam->mmio_base, CAM_SYSCONFIG,
- CAM_SYSCONFIG_AUTOIDLE);
-
- /* set the camera MMU autoidle bit */
- omap24xxcam_reg_out(cam->mmio_base,
- CAMMMU_REG_OFFSET + CAMMMU_SYSCONFIG,
- CAMMMU_SYSCONFIG_AUTOIDLE);
-
- omap24xxcam_core_hwinit(cam);
-
- omap24xxcam_dma_hwinit(&cam->sgdma.dma);
-}
-
-/*
- * Callback for dma transfer stalling.
- */
-static void omap24xxcam_stalled_dma_reset(unsigned long data)
-{
- struct omap24xxcam_device *cam = (struct omap24xxcam_device *)data;
-
- if (!atomic_read(&cam->in_reset)) {
- dev_dbg(cam->dev, "dma stalled, resetting camera\n");
- omap24xxcam_reset(cam);
- }
-}
-
-/*
- * Stop capture. Mark we're doing a reset, stop DMA transfers and
- * core. (No new scatter-gather transfers will be queued whilst
- * in_reset is non-zero.)
- *
- * If omap24xxcam_capture_stop is called from several places at
- * once, only the first call will have an effect. Similarly, the last
- * call omap24xxcam_streaming_cont will have effect.
- *
- * Serialisation is ensured by using cam->core_enable_disable_lock.
- */
-static void omap24xxcam_capture_stop(struct omap24xxcam_device *cam)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&cam->core_enable_disable_lock, flags);
-
- if (atomic_inc_return(&cam->in_reset) != 1) {
- spin_unlock_irqrestore(&cam->core_enable_disable_lock, flags);
- return;
- }
-
- omap24xxcam_core_disable(cam);
-
- spin_unlock_irqrestore(&cam->core_enable_disable_lock, flags);
-
- omap24xxcam_sgdma_sync(&cam->sgdma);
-}
-
-/*
- * Reset and continue streaming.
- *
- * Note: Resetting the camera FIFO via the CC_RST bit in the CC_CTRL
- * register is supposed to be sufficient to recover from a camera
- * interface error, but it doesn't seem to be enough. If we only do
- * that then subsequent image captures are out of sync by either one
- * or two times DMA_THRESHOLD bytes. Resetting and re-initializing the
- * entire camera subsystem prevents the problem with frame
- * synchronization.
- */
-static void omap24xxcam_capture_cont(struct omap24xxcam_device *cam)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&cam->core_enable_disable_lock, flags);
-
- if (atomic_read(&cam->in_reset) != 1)
- goto out;
-
- omap24xxcam_hwinit(cam);
-
- omap24xxcam_sensor_if_enable(cam);
-
- omap24xxcam_sgdma_process(&cam->sgdma);
-
- if (cam->sgdma_in_queue)
- omap24xxcam_core_enable(cam);
-
-out:
- atomic_dec(&cam->in_reset);
- spin_unlock_irqrestore(&cam->core_enable_disable_lock, flags);
-}
-
-static ssize_t
-omap24xxcam_streaming_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct omap24xxcam_device *cam = dev_get_drvdata(dev);
-
- return sprintf(buf, "%s\n", cam->streaming ? "active" : "inactive");
-}
-static DEVICE_ATTR(streaming, S_IRUGO, omap24xxcam_streaming_show, NULL);
-
-/*
- * Stop capture and restart it. I.e. reset the camera during use.
- */
-static void omap24xxcam_reset(struct omap24xxcam_device *cam)
-{
- omap24xxcam_capture_stop(cam);
- omap24xxcam_capture_cont(cam);
-}
-
-/*
- * The main interrupt handler.
- */
-static irqreturn_t omap24xxcam_isr(int irq, void *arg)
-{
- struct omap24xxcam_device *cam = (struct omap24xxcam_device *)arg;
- u32 irqstatus;
- unsigned int irqhandled = 0;
-
- irqstatus = omap24xxcam_reg_in(cam->mmio_base, CAM_IRQSTATUS);
-
- if (irqstatus &
- (CAM_IRQSTATUS_DMA_IRQ2 | CAM_IRQSTATUS_DMA_IRQ1
- | CAM_IRQSTATUS_DMA_IRQ0)) {
- omap24xxcam_dma_isr(&cam->sgdma.dma);
- irqhandled = 1;
- }
- if (irqstatus & CAM_IRQSTATUS_CC_IRQ) {
- omap24xxcam_core_isr(cam);
- irqhandled = 1;
- }
- if (irqstatus & CAM_IRQSTATUS_MMU_IRQ)
- dev_err(cam->dev, "unhandled camera MMU interrupt!\n");
-
- return IRQ_RETVAL(irqhandled);
-}
-
-/*
- *
- * Sensor handling.
- *
- */
-
-/*
- * Enable the external sensor interface. Try to negotiate interface
- * parameters with the sensor and start using the new ones. The calls
- * to sensor_if_enable and sensor_if_disable need not to be balanced.
- */
-static int omap24xxcam_sensor_if_enable(struct omap24xxcam_device *cam)
-{
- int rval;
- struct v4l2_ifparm p;
-
- rval = vidioc_int_g_ifparm(cam->sdev, &p);
- if (rval) {
- dev_err(cam->dev, "vidioc_int_g_ifparm failed with %d\n", rval);
- return rval;
- }
-
- cam->if_type = p.if_type;
-
- cam->cc_ctrl = CC_CTRL_CC_EN;
-
- switch (p.if_type) {
- case V4L2_IF_TYPE_BT656:
- if (p.u.bt656.frame_start_on_rising_vs)
- cam->cc_ctrl |= CC_CTRL_NOBT_SYNCHRO;
- if (p.u.bt656.bt_sync_correct)
- cam->cc_ctrl |= CC_CTRL_BT_CORRECT;
- if (p.u.bt656.swap)
- cam->cc_ctrl |= CC_CTRL_PAR_ORDERCAM;
- if (p.u.bt656.latch_clk_inv)
- cam->cc_ctrl |= CC_CTRL_PAR_CLK_POL;
- if (p.u.bt656.nobt_hs_inv)
- cam->cc_ctrl |= CC_CTRL_NOBT_HS_POL;
- if (p.u.bt656.nobt_vs_inv)
- cam->cc_ctrl |= CC_CTRL_NOBT_VS_POL;
-
- switch (p.u.bt656.mode) {
- case V4L2_IF_TYPE_BT656_MODE_NOBT_8BIT:
- cam->cc_ctrl |= CC_CTRL_PAR_MODE_NOBT8;
- break;
- case V4L2_IF_TYPE_BT656_MODE_NOBT_10BIT:
- cam->cc_ctrl |= CC_CTRL_PAR_MODE_NOBT10;
- break;
- case V4L2_IF_TYPE_BT656_MODE_NOBT_12BIT:
- cam->cc_ctrl |= CC_CTRL_PAR_MODE_NOBT12;
- break;
- case V4L2_IF_TYPE_BT656_MODE_BT_8BIT:
- cam->cc_ctrl |= CC_CTRL_PAR_MODE_BT8;
- break;
- case V4L2_IF_TYPE_BT656_MODE_BT_10BIT:
- cam->cc_ctrl |= CC_CTRL_PAR_MODE_BT10;
- break;
- default:
- dev_err(cam->dev,
- "bt656 interface mode %d not supported\n",
- p.u.bt656.mode);
- return -EINVAL;
- }
- /*
- * The clock rate that the sensor wants has changed.
- * We have to adjust the xclk from OMAP 2 side to
- * match the sensor's wish as closely as possible.
- */
- if (p.u.bt656.clock_curr != cam->if_u.bt656.xclk) {
- u32 xclk = p.u.bt656.clock_curr;
- u32 divisor;
-
- if (xclk == 0)
- return -EINVAL;
-
- if (xclk > CAM_MCLK)
- xclk = CAM_MCLK;
-
- divisor = CAM_MCLK / xclk;
- if (divisor * xclk < CAM_MCLK)
- divisor++;
- if (CAM_MCLK / divisor < p.u.bt656.clock_min
- && divisor > 1)
- divisor--;
- if (divisor > 30)
- divisor = 30;
-
- xclk = CAM_MCLK / divisor;
-
- if (xclk < p.u.bt656.clock_min
- || xclk > p.u.bt656.clock_max)
- return -EINVAL;
-
- cam->if_u.bt656.xclk = xclk;
- }
- omap24xxcam_core_xclk_set(cam, cam->if_u.bt656.xclk);
- break;
- default:
- /* FIXME: how about other interfaces? */
- dev_err(cam->dev, "interface type %d not supported\n",
- p.if_type);
- return -EINVAL;
- }
-
- return 0;
-}
-
-static void omap24xxcam_sensor_if_disable(const struct omap24xxcam_device *cam)
-{
- switch (cam->if_type) {
- case V4L2_IF_TYPE_BT656:
- omap24xxcam_core_xclk_set(cam, 0);
- break;
- }
-}
-
-/*
- * Initialise the sensor hardware.
- */
-static int omap24xxcam_sensor_init(struct omap24xxcam_device *cam)
-{
- int err = 0;
- struct v4l2_int_device *sdev = cam->sdev;
-
- omap24xxcam_clock_on(cam);
- err = omap24xxcam_sensor_if_enable(cam);
- if (err) {
- dev_err(cam->dev, "sensor interface could not be enabled at "
- "initialisation, %d\n", err);
- cam->sdev = NULL;
- goto out;
- }
-
- /* power up sensor during sensor initialization */
- vidioc_int_s_power(sdev, 1);
-
- err = vidioc_int_dev_init(sdev);
- if (err) {
- dev_err(cam->dev, "cannot initialize sensor, error %d\n", err);
- /* Sensor init failed --- it's nonexistent to us! */
- cam->sdev = NULL;
- goto out;
- }
-
- dev_info(cam->dev, "sensor is %s\n", sdev->name);
-
-out:
- omap24xxcam_sensor_if_disable(cam);
- omap24xxcam_clock_off(cam);
-
- vidioc_int_s_power(sdev, 0);
-
- return err;
-}
-
-static void omap24xxcam_sensor_exit(struct omap24xxcam_device *cam)
-{
- if (cam->sdev)
- vidioc_int_dev_exit(cam->sdev);
-}
-
-static void omap24xxcam_sensor_disable(struct omap24xxcam_device *cam)
-{
- omap24xxcam_sensor_if_disable(cam);
- omap24xxcam_clock_off(cam);
- vidioc_int_s_power(cam->sdev, 0);
-}
-
-/*
- * Power-up and configure camera sensor. It's ready for capturing now.
- */
-static int omap24xxcam_sensor_enable(struct omap24xxcam_device *cam)
-{
- int rval;
-
- omap24xxcam_clock_on(cam);
-
- omap24xxcam_sensor_if_enable(cam);
-
- rval = vidioc_int_s_power(cam->sdev, 1);
- if (rval)
- goto out;
-
- rval = vidioc_int_init(cam->sdev);
- if (rval)
- goto out;
-
- return 0;
-
-out:
- omap24xxcam_sensor_disable(cam);
-
- return rval;
-}
-
-static void omap24xxcam_sensor_reset_work(struct work_struct *work)
-{
- struct omap24xxcam_device *cam =
- container_of(work, struct omap24xxcam_device,
- sensor_reset_work);
-
- if (atomic_read(&cam->reset_disable))
- return;
-
- omap24xxcam_capture_stop(cam);
-
- if (vidioc_int_reset(cam->sdev) == 0) {
- vidioc_int_init(cam->sdev);
- } else {
- /* Can't reset it by vidioc_int_reset. */
- omap24xxcam_sensor_disable(cam);
- omap24xxcam_sensor_enable(cam);
- }
-
- omap24xxcam_capture_cont(cam);
-}
-
-/*
- *
- * IOCTL interface.
- *
- */
-
-static int vidioc_querycap(struct file *file, void *fh,
- struct v4l2_capability *cap)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
-
- strlcpy(cap->driver, CAM_NAME, sizeof(cap->driver));
- strlcpy(cap->card, cam->vfd->name, sizeof(cap->card));
- cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
-
- return 0;
-}
-
-static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh,
- struct v4l2_fmtdesc *f)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- rval = vidioc_int_enum_fmt_cap(cam->sdev, f);
-
- return rval;
-}
-
-static int vidioc_g_fmt_vid_cap(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- mutex_lock(&cam->mutex);
- rval = vidioc_int_g_fmt_cap(cam->sdev, f);
- mutex_unlock(&cam->mutex);
-
- return rval;
-}
-
-static int vidioc_s_fmt_vid_cap(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- mutex_lock(&cam->mutex);
- if (cam->streaming) {
- rval = -EBUSY;
- goto out;
- }
-
- rval = vidioc_int_s_fmt_cap(cam->sdev, f);
-
-out:
- mutex_unlock(&cam->mutex);
-
- if (!rval) {
- mutex_lock(&ofh->vbq.vb_lock);
- ofh->pix = f->fmt.pix;
- mutex_unlock(&ofh->vbq.vb_lock);
- }
-
- memset(f, 0, sizeof(*f));
- vidioc_g_fmt_vid_cap(file, fh, f);
-
- return rval;
-}
-
-static int vidioc_try_fmt_vid_cap(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- mutex_lock(&cam->mutex);
- rval = vidioc_int_try_fmt_cap(cam->sdev, f);
- mutex_unlock(&cam->mutex);
-
- return rval;
-}
-
-static int vidioc_reqbufs(struct file *file, void *fh,
- struct v4l2_requestbuffers *b)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- mutex_lock(&cam->mutex);
- if (cam->streaming) {
- mutex_unlock(&cam->mutex);
- return -EBUSY;
- }
-
- omap24xxcam_vbq_free_mmap_buffers(&ofh->vbq);
- mutex_unlock(&cam->mutex);
-
- rval = videobuf_reqbufs(&ofh->vbq, b);
-
- /*
- * Either videobuf_reqbufs failed or the buffers are not
- * memory-mapped (which would need special attention).
- */
- if (rval < 0 || b->memory != V4L2_MEMORY_MMAP)
- goto out;
-
- rval = omap24xxcam_vbq_alloc_mmap_buffers(&ofh->vbq, rval);
- if (rval)
- omap24xxcam_vbq_free_mmap_buffers(&ofh->vbq);
-
-out:
- return rval;
-}
-
-static int vidioc_querybuf(struct file *file, void *fh,
- struct v4l2_buffer *b)
-{
- struct omap24xxcam_fh *ofh = fh;
-
- return videobuf_querybuf(&ofh->vbq, b);
-}
-
-static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *b)
-{
- struct omap24xxcam_fh *ofh = fh;
-
- return videobuf_qbuf(&ofh->vbq, b);
-}
-
-static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- struct videobuf_buffer *vb;
- int rval;
-
-videobuf_dqbuf_again:
- rval = videobuf_dqbuf(&ofh->vbq, b, file->f_flags & O_NONBLOCK);
- if (rval)
- goto out;
-
- vb = ofh->vbq.bufs[b->index];
-
- mutex_lock(&cam->mutex);
- /* _needs_reset returns -EIO if reset is required. */
- rval = vidioc_int_g_needs_reset(cam->sdev, (void *)vb->baddr);
- mutex_unlock(&cam->mutex);
- if (rval == -EIO)
- schedule_work(&cam->sensor_reset_work);
- else
- rval = 0;
-
-out:
- /*
- * This is a hack. We don't want to show -EIO to the user
- * space. Requeue the buffer and try again if we're not doing
- * this in non-blocking mode.
- */
- if (rval == -EIO) {
- videobuf_qbuf(&ofh->vbq, b);
- if (!(file->f_flags & O_NONBLOCK))
- goto videobuf_dqbuf_again;
- /*
- * We don't have a videobuf_buffer now --- maybe next
- * time...
- */
- rval = -EAGAIN;
- }
-
- return rval;
-}
-
-static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- mutex_lock(&cam->mutex);
- if (cam->streaming) {
- rval = -EBUSY;
- goto out;
- }
-
- rval = omap24xxcam_sensor_if_enable(cam);
- if (rval) {
- dev_dbg(cam->dev, "vidioc_int_g_ifparm failed\n");
- goto out;
- }
-
- rval = videobuf_streamon(&ofh->vbq);
- if (!rval) {
- cam->streaming = file;
- sysfs_notify(&cam->dev->kobj, NULL, "streaming");
- }
-
-out:
- mutex_unlock(&cam->mutex);
-
- return rval;
-}
-
-static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- struct videobuf_queue *q = &ofh->vbq;
- int rval;
-
- atomic_inc(&cam->reset_disable);
-
- flush_work(&cam->sensor_reset_work);
-
- rval = videobuf_streamoff(q);
- if (!rval) {
- mutex_lock(&cam->mutex);
- cam->streaming = NULL;
- mutex_unlock(&cam->mutex);
- sysfs_notify(&cam->dev->kobj, NULL, "streaming");
- }
-
- atomic_dec(&cam->reset_disable);
-
- return rval;
-}
-
-static int vidioc_enum_input(struct file *file, void *fh,
- struct v4l2_input *inp)
-{
- if (inp->index > 0)
- return -EINVAL;
-
- strlcpy(inp->name, "camera", sizeof(inp->name));
- inp->type = V4L2_INPUT_TYPE_CAMERA;
-
- return 0;
-}
-
-static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
-{
- *i = 0;
-
- return 0;
-}
-
-static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
-{
- if (i > 0)
- return -EINVAL;
-
- return 0;
-}
-
-static int vidioc_queryctrl(struct file *file, void *fh,
- struct v4l2_queryctrl *a)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- rval = vidioc_int_queryctrl(cam->sdev, a);
-
- return rval;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *fh,
- struct v4l2_control *a)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- mutex_lock(&cam->mutex);
- rval = vidioc_int_g_ctrl(cam->sdev, a);
- mutex_unlock(&cam->mutex);
-
- return rval;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *fh,
- struct v4l2_control *a)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- mutex_lock(&cam->mutex);
- rval = vidioc_int_s_ctrl(cam->sdev, a);
- mutex_unlock(&cam->mutex);
-
- return rval;
-}
-
-static int vidioc_g_parm(struct file *file, void *fh,
- struct v4l2_streamparm *a) {
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- int rval;
-
- mutex_lock(&cam->mutex);
- rval = vidioc_int_g_parm(cam->sdev, a);
- mutex_unlock(&cam->mutex);
-
- return rval;
-}
-
-static int vidioc_s_parm(struct file *file, void *fh,
- struct v4l2_streamparm *a)
-{
- struct omap24xxcam_fh *ofh = fh;
- struct omap24xxcam_device *cam = ofh->cam;
- struct v4l2_streamparm old_streamparm;
- int rval;
-
- mutex_lock(&cam->mutex);
- if (cam->streaming) {
- rval = -EBUSY;
- goto out;
- }
-
- old_streamparm.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- rval = vidioc_int_g_parm(cam->sdev, &old_streamparm);
- if (rval)
- goto out;
-
- rval = vidioc_int_s_parm(cam->sdev, a);
- if (rval)
- goto out;
-
- rval = omap24xxcam_sensor_if_enable(cam);
- /*
- * Revert to old streaming parameters if enabling sensor
- * interface with the new ones failed.
- */
- if (rval)
- vidioc_int_s_parm(cam->sdev, &old_streamparm);
-
-out:
- mutex_unlock(&cam->mutex);
-
- return rval;
-}
-
-/*
- *
- * File operations.
- *
- */
-
-static unsigned int omap24xxcam_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- struct omap24xxcam_fh *fh = file->private_data;
- struct omap24xxcam_device *cam = fh->cam;
- struct videobuf_buffer *vb;
-
- mutex_lock(&cam->mutex);
- if (cam->streaming != file) {
- mutex_unlock(&cam->mutex);
- return POLLERR;
- }
- mutex_unlock(&cam->mutex);
-
- mutex_lock(&fh->vbq.vb_lock);
- if (list_empty(&fh->vbq.stream)) {
- mutex_unlock(&fh->vbq.vb_lock);
- return POLLERR;
- }
- vb = list_entry(fh->vbq.stream.next, struct videobuf_buffer, stream);
- mutex_unlock(&fh->vbq.vb_lock);
-
- poll_wait(file, &vb->done, wait);
-
- if (vb->state == VIDEOBUF_DONE || vb->state == VIDEOBUF_ERROR)
- return POLLIN | POLLRDNORM;
-
- return 0;
-}
-
-static int omap24xxcam_mmap_buffers(struct file *file,
- struct vm_area_struct *vma)
-{
- struct omap24xxcam_fh *fh = file->private_data;
- struct omap24xxcam_device *cam = fh->cam;
- struct videobuf_queue *vbq = &fh->vbq;
- unsigned int first, last, size, i, j;
- int err = 0;
-
- mutex_lock(&cam->mutex);
- if (cam->streaming) {
- mutex_unlock(&cam->mutex);
- return -EBUSY;
- }
- mutex_unlock(&cam->mutex);
- mutex_lock(&vbq->vb_lock);
-
- /* look for first buffer to map */
- for (first = 0; first < VIDEO_MAX_FRAME; first++) {
- if (NULL == vbq->bufs[first])
- continue;
- if (V4L2_MEMORY_MMAP != vbq->bufs[first]->memory)
- continue;
- if (vbq->bufs[first]->boff == (vma->vm_pgoff << PAGE_SHIFT))
- break;
- }
-
- /* look for last buffer to map */
- for (size = 0, last = first; last < VIDEO_MAX_FRAME; last++) {
- if (NULL == vbq->bufs[last])
- continue;
- if (V4L2_MEMORY_MMAP != vbq->bufs[last]->memory)
- continue;
- size += vbq->bufs[last]->bsize;
- if (size == (vma->vm_end - vma->vm_start))
- break;
- }
-
- size = 0;
- for (i = first; i <= last && i < VIDEO_MAX_FRAME; i++) {
- struct videobuf_dmabuf *dma = videobuf_to_dma(vbq->bufs[i]);
-
- for (j = 0; j < dma->sglen; j++) {
- err = remap_pfn_range(
- vma, vma->vm_start + size,
- page_to_pfn(sg_page(&dma->sglist[j])),
- sg_dma_len(&dma->sglist[j]), vma->vm_page_prot);
- if (err)
- goto out;
- size += sg_dma_len(&dma->sglist[j]);
- }
- }
-
-out:
- mutex_unlock(&vbq->vb_lock);
-
- return err;
-}
-
-static int omap24xxcam_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct omap24xxcam_fh *fh = file->private_data;
- int rval;
-
- /* let the video-buf mapper check arguments and set-up structures */
- rval = videobuf_mmap_mapper(&fh->vbq, vma);
- if (rval)
- return rval;
-
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-
- /* do mapping to our allocated buffers */
- rval = omap24xxcam_mmap_buffers(file, vma);
- /*
- * In case of error, free vma->vm_private_data allocated by
- * videobuf_mmap_mapper.
- */
- if (rval)
- kfree(vma->vm_private_data);
-
- return rval;
-}
-
-static int omap24xxcam_open(struct file *file)
-{
- struct omap24xxcam_device *cam = omap24xxcam.priv;
- struct omap24xxcam_fh *fh;
- struct v4l2_format format;
-
- if (!cam || !cam->vfd)
- return -ENODEV;
-
- fh = kzalloc(sizeof(*fh), GFP_KERNEL);
- if (fh == NULL)
- return -ENOMEM;
-
- mutex_lock(&cam->mutex);
- if (cam->sdev == NULL || !try_module_get(cam->sdev->module)) {
- mutex_unlock(&cam->mutex);
- goto out_try_module_get;
- }
-
- if (atomic_inc_return(&cam->users) == 1) {
- omap24xxcam_hwinit(cam);
- if (omap24xxcam_sensor_enable(cam)) {
- mutex_unlock(&cam->mutex);
- goto out_omap24xxcam_sensor_enable;
- }
- }
- mutex_unlock(&cam->mutex);
-
- fh->cam = cam;
- mutex_lock(&cam->mutex);
- vidioc_int_g_fmt_cap(cam->sdev, &format);
- mutex_unlock(&cam->mutex);
- /* FIXME: how about fh->pix when there are more users? */
- fh->pix = format.fmt.pix;
-
- file->private_data = fh;
-
- spin_lock_init(&fh->vbq_lock);
-
- videobuf_queue_sg_init(&fh->vbq, &omap24xxcam_vbq_ops, NULL,
- &fh->vbq_lock, V4L2_BUF_TYPE_VIDEO_CAPTURE,
- V4L2_FIELD_NONE,
- sizeof(struct videobuf_buffer), fh, NULL);
-
- return 0;
-
-out_omap24xxcam_sensor_enable:
- omap24xxcam_poweron_reset(cam);
- module_put(cam->sdev->module);
-
-out_try_module_get:
- kfree(fh);
-
- return -ENODEV;
-}
-
-static int omap24xxcam_release(struct file *file)
-{
- struct omap24xxcam_fh *fh = file->private_data;
- struct omap24xxcam_device *cam = fh->cam;
-
- atomic_inc(&cam->reset_disable);
-
- flush_work(&cam->sensor_reset_work);
-
- /* stop streaming capture */
- videobuf_streamoff(&fh->vbq);
-
- mutex_lock(&cam->mutex);
- if (cam->streaming == file) {
- cam->streaming = NULL;
- mutex_unlock(&cam->mutex);
- sysfs_notify(&cam->dev->kobj, NULL, "streaming");
- } else {
- mutex_unlock(&cam->mutex);
- }
-
- atomic_dec(&cam->reset_disable);
-
- omap24xxcam_vbq_free_mmap_buffers(&fh->vbq);
-
- /*
- * Make sure the reset work we might have scheduled is not
- * pending! It may be run *only* if we have users. (And it may
- * not be scheduled anymore since streaming is already
- * disabled.)
- */
- flush_work(&cam->sensor_reset_work);
-
- mutex_lock(&cam->mutex);
- if (atomic_dec_return(&cam->users) == 0) {
- omap24xxcam_sensor_disable(cam);
- omap24xxcam_poweron_reset(cam);
- }
- mutex_unlock(&cam->mutex);
-
- file->private_data = NULL;
-
- module_put(cam->sdev->module);
- kfree(fh);
-
- return 0;
-}
-
-static struct v4l2_file_operations omap24xxcam_fops = {
- .ioctl = video_ioctl2,
- .poll = omap24xxcam_poll,
- .mmap = omap24xxcam_mmap,
- .open = omap24xxcam_open,
- .release = omap24xxcam_release,
-};
-
-/*
- *
- * Power management.
- *
- */
-
-#ifdef CONFIG_PM
-static int omap24xxcam_suspend(struct platform_device *pdev, pm_message_t state)
-{
- struct omap24xxcam_device *cam = platform_get_drvdata(pdev);
-
- if (atomic_read(&cam->users) == 0)
- return 0;
-
- if (!atomic_read(&cam->reset_disable))
- omap24xxcam_capture_stop(cam);
-
- omap24xxcam_sensor_disable(cam);
- omap24xxcam_poweron_reset(cam);
-
- return 0;
-}
-
-static int omap24xxcam_resume(struct platform_device *pdev)
-{
- struct omap24xxcam_device *cam = platform_get_drvdata(pdev);
-
- if (atomic_read(&cam->users) == 0)
- return 0;
-
- omap24xxcam_hwinit(cam);
- omap24xxcam_sensor_enable(cam);
-
- if (!atomic_read(&cam->reset_disable))
- omap24xxcam_capture_cont(cam);
-
- return 0;
-}
-#endif /* CONFIG_PM */
-
-static const struct v4l2_ioctl_ops omap24xxcam_ioctl_fops = {
- .vidioc_querycap = vidioc_querycap,
- .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
- .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
- .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
- .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
- .vidioc_enum_input = vidioc_enum_input,
- .vidioc_g_input = vidioc_g_input,
- .vidioc_s_input = vidioc_s_input,
- .vidioc_queryctrl = vidioc_queryctrl,
- .vidioc_g_ctrl = vidioc_g_ctrl,
- .vidioc_s_ctrl = vidioc_s_ctrl,
- .vidioc_g_parm = vidioc_g_parm,
- .vidioc_s_parm = vidioc_s_parm,
-};
-
-/*
- *
- * Camera device (i.e. /dev/video).
- *
- */
-
-static int omap24xxcam_device_register(struct v4l2_int_device *s)
-{
- struct omap24xxcam_device *cam = s->u.slave->master->priv;
- struct video_device *vfd;
- int rval;
-
- /* We already have a slave. */
- if (cam->sdev)
- return -EBUSY;
-
- cam->sdev = s;
-
- if (device_create_file(cam->dev, &dev_attr_streaming) != 0) {
- dev_err(cam->dev, "could not register sysfs entry\n");
- rval = -EBUSY;
- goto err;
- }
-
- /* initialize the video_device struct */
- vfd = cam->vfd = video_device_alloc();
- if (!vfd) {
- dev_err(cam->dev, "could not allocate video device struct\n");
- rval = -ENOMEM;
- goto err;
- }
- vfd->release = video_device_release;
-
- vfd->parent = cam->dev;
-
- strlcpy(vfd->name, CAM_NAME, sizeof(vfd->name));
- vfd->fops = &omap24xxcam_fops;
- vfd->ioctl_ops = &omap24xxcam_ioctl_fops;
-
- omap24xxcam_hwinit(cam);
-
- rval = omap24xxcam_sensor_init(cam);
- if (rval)
- goto err;
-
- if (video_register_device(vfd, VFL_TYPE_GRABBER, video_nr) < 0) {
- dev_err(cam->dev, "could not register V4L device\n");
- rval = -EBUSY;
- goto err;
- }
-
- omap24xxcam_poweron_reset(cam);
-
- dev_info(cam->dev, "registered device %s\n",
- video_device_node_name(vfd));
-
- return 0;
-
-err:
- omap24xxcam_device_unregister(s);
-
- return rval;
-}
-
-static void omap24xxcam_device_unregister(struct v4l2_int_device *s)
-{
- struct omap24xxcam_device *cam = s->u.slave->master->priv;
-
- omap24xxcam_sensor_exit(cam);
-
- if (cam->vfd) {
- if (!video_is_registered(cam->vfd)) {
- /*
- * The device was never registered, so release the
- * video_device struct directly.
- */
- video_device_release(cam->vfd);
- } else {
- /*
- * The unregister function will release the
- * video_device struct as well as
- * unregistering it.
- */
- video_unregister_device(cam->vfd);
- }
- cam->vfd = NULL;
- }
-
- device_remove_file(cam->dev, &dev_attr_streaming);
-
- cam->sdev = NULL;
-}
-
-static struct v4l2_int_master omap24xxcam_master = {
- .attach = omap24xxcam_device_register,
- .detach = omap24xxcam_device_unregister,
-};
-
-static struct v4l2_int_device omap24xxcam = {
- .module = THIS_MODULE,
- .name = CAM_NAME,
- .type = v4l2_int_type_master,
- .u = {
- .master = &omap24xxcam_master
- },
-};
-
-/*
- *
- * Driver initialisation and deinitialisation.
- *
- */
-
-static int __devinit omap24xxcam_probe(struct platform_device *pdev)
-{
- struct omap24xxcam_device *cam;
- struct resource *mem;
- int irq;
-
- cam = kzalloc(sizeof(*cam), GFP_KERNEL);
- if (!cam) {
- dev_err(&pdev->dev, "could not allocate memory\n");
- goto err;
- }
-
- platform_set_drvdata(pdev, cam);
-
- cam->dev = &pdev->dev;
-
- /*
- * Impose a lower limit on the amount of memory allocated for
- * capture. We require at least enough memory to double-buffer
- * QVGA (300KB).
- */
- if (capture_mem < 320 * 240 * 2 * 2)
- capture_mem = 320 * 240 * 2 * 2;
- cam->capture_mem = capture_mem;
-
- /* request the mem region for the camera registers */
- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem) {
- dev_err(cam->dev, "no mem resource?\n");
- goto err;
- }
- if (!request_mem_region(mem->start, resource_size(mem), pdev->name)) {
- dev_err(cam->dev,
- "cannot reserve camera register I/O region\n");
- goto err;
- }
- cam->mmio_base_phys = mem->start;
- cam->mmio_size = resource_size(mem);
-
- /* map the region */
- cam->mmio_base = ioremap_nocache(cam->mmio_base_phys, cam->mmio_size);
- if (!cam->mmio_base) {
- dev_err(cam->dev, "cannot map camera register I/O region\n");
- goto err;
- }
-
- irq = platform_get_irq(pdev, 0);
- if (irq <= 0) {
- dev_err(cam->dev, "no irq for camera?\n");
- goto err;
- }
-
- /* install the interrupt service routine */
- if (request_irq(irq, omap24xxcam_isr, 0, CAM_NAME, cam)) {
- dev_err(cam->dev,
- "could not install interrupt service routine\n");
- goto err;
- }
- cam->irq = irq;
-
- if (omap24xxcam_clock_get(cam))
- goto err;
-
- INIT_WORK(&cam->sensor_reset_work, omap24xxcam_sensor_reset_work);
-
- mutex_init(&cam->mutex);
- spin_lock_init(&cam->core_enable_disable_lock);
-
- omap24xxcam_sgdma_init(&cam->sgdma,
- cam->mmio_base + CAMDMA_REG_OFFSET,
- omap24xxcam_stalled_dma_reset,
- (unsigned long)cam);
-
- omap24xxcam.priv = cam;
-
- if (v4l2_int_device_register(&omap24xxcam))
- goto err;
-
- return 0;
-
-err:
- omap24xxcam_remove(pdev);
- return -ENODEV;
-}
-
-static int omap24xxcam_remove(struct platform_device *pdev)
-{
- struct omap24xxcam_device *cam = platform_get_drvdata(pdev);
-
- if (!cam)
- return 0;
-
- if (omap24xxcam.priv != NULL)
- v4l2_int_device_unregister(&omap24xxcam);
- omap24xxcam.priv = NULL;
-
- omap24xxcam_clock_put(cam);
-
- if (cam->irq) {
- free_irq(cam->irq, cam);
- cam->irq = 0;
- }
-
- if (cam->mmio_base) {
- iounmap((void *)cam->mmio_base);
- cam->mmio_base = 0;
- }
-
- if (cam->mmio_base_phys) {
- release_mem_region(cam->mmio_base_phys, cam->mmio_size);
- cam->mmio_base_phys = 0;
- }
-
- kfree(cam);
-
- return 0;
-}
-
-static struct platform_driver omap24xxcam_driver = {
- .probe = omap24xxcam_probe,
- .remove = omap24xxcam_remove,
-#ifdef CONFIG_PM
- .suspend = omap24xxcam_suspend,
- .resume = omap24xxcam_resume,
-#endif
- .driver = {
- .name = CAM_NAME,
- .owner = THIS_MODULE,
- },
-};
-
-module_platform_driver(omap24xxcam_driver);
-
-MODULE_AUTHOR("Sakari Ailus <sakari.ailus@xxxxxxxxx>");
-MODULE_DESCRIPTION("OMAP24xx Video for Linux camera driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(OMAP24XXCAM_VERSION);
-module_param(video_nr, int, 0);
-MODULE_PARM_DESC(video_nr,
- "Minor number for video device (-1 ==> auto assign)");
-module_param(capture_mem, int, 0);
-MODULE_PARM_DESC(capture_mem, "Maximum amount of memory for capture "
- "buffers (default 4800kiB)");
diff --git a/drivers/media/platform/omap24xxcam.h b/drivers/media/platform/omap24xxcam.h
deleted file mode 100644
index c439595..0000000
--- a/drivers/media/platform/omap24xxcam.h
+++ /dev/null
@@ -1,593 +0,0 @@
-/*
- * drivers/media/platform/omap24xxcam.h
- *
- * Copyright (C) 2004 MontaVista Software, Inc.
- * Copyright (C) 2004 Texas Instruments.
- * Copyright (C) 2007 Nokia Corporation.
- *
- * Contact: Sakari Ailus <sakari.ailus@xxxxxxxxx>
- *
- * Based on code from Andy Lowe <source@xxxxxxxxxx>.
- *
- * 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.
- *
- * This program is distributed in the hope that 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-
-#ifndef OMAP24XXCAM_H
-#define OMAP24XXCAM_H
-
-#include <media/videobuf-dma-sg.h>
-#include <media/v4l2-int-device.h>
-
-/*
- *
- * General driver related definitions.
- *
- */
-
-#define CAM_NAME "omap24xxcam"
-
-#define CAM_MCLK 96000000
-
-/* number of bytes transferred per DMA request */
-#define DMA_THRESHOLD 32
-
-/*
- * NUM_CAMDMA_CHANNELS is the number of logical channels provided by
- * the camera DMA controller.
- */
-#define NUM_CAMDMA_CHANNELS 4
-
-/*
- * NUM_SG_DMA is the number of scatter-gather DMA transfers that can
- * be queued. (We don't have any overlay sglists now.)
- */
-#define NUM_SG_DMA (VIDEO_MAX_FRAME)
-
-/*
- *
- * Register definitions.
- *
- */
-
-/* subsystem register block offsets */
-#define CC_REG_OFFSET 0x00000400
-#define CAMDMA_REG_OFFSET 0x00000800
-#define CAMMMU_REG_OFFSET 0x00000C00
-
-/* define camera subsystem register offsets */
-#define CAM_REVISION 0x000
-#define CAM_SYSCONFIG 0x010
-#define CAM_SYSSTATUS 0x014
-#define CAM_IRQSTATUS 0x018
-#define CAM_GPO 0x040
-#define CAM_GPI 0x050
-
-/* define camera core register offsets */
-#define CC_REVISION 0x000
-#define CC_SYSCONFIG 0x010
-#define CC_SYSSTATUS 0x014
-#define CC_IRQSTATUS 0x018
-#define CC_IRQENABLE 0x01C
-#define CC_CTRL 0x040
-#define CC_CTRL_DMA 0x044
-#define CC_CTRL_XCLK 0x048
-#define CC_FIFODATA 0x04C
-#define CC_TEST 0x050
-#define CC_GENPAR 0x054
-#define CC_CCPFSCR 0x058
-#define CC_CCPFECR 0x05C
-#define CC_CCPLSCR 0x060
-#define CC_CCPLECR 0x064
-#define CC_CCPDFR 0x068
-
-/* define camera dma register offsets */
-#define CAMDMA_REVISION 0x000
-#define CAMDMA_IRQSTATUS_L0 0x008
-#define CAMDMA_IRQSTATUS_L1 0x00C
-#define CAMDMA_IRQSTATUS_L2 0x010
-#define CAMDMA_IRQSTATUS_L3 0x014
-#define CAMDMA_IRQENABLE_L0 0x018
-#define CAMDMA_IRQENABLE_L1 0x01C
-#define CAMDMA_IRQENABLE_L2 0x020
-#define CAMDMA_IRQENABLE_L3 0x024
-#define CAMDMA_SYSSTATUS 0x028
-#define CAMDMA_OCP_SYSCONFIG 0x02C
-#define CAMDMA_CAPS_0 0x064
-#define CAMDMA_CAPS_2 0x06C
-#define CAMDMA_CAPS_3 0x070
-#define CAMDMA_CAPS_4 0x074
-#define CAMDMA_GCR 0x078
-#define CAMDMA_CCR(n) (0x080 + (n)*0x60)
-#define CAMDMA_CLNK_CTRL(n) (0x084 + (n)*0x60)
-#define CAMDMA_CICR(n) (0x088 + (n)*0x60)
-#define CAMDMA_CSR(n) (0x08C + (n)*0x60)
-#define CAMDMA_CSDP(n) (0x090 + (n)*0x60)
-#define CAMDMA_CEN(n) (0x094 + (n)*0x60)
-#define CAMDMA_CFN(n) (0x098 + (n)*0x60)
-#define CAMDMA_CSSA(n) (0x09C + (n)*0x60)
-#define CAMDMA_CDSA(n) (0x0A0 + (n)*0x60)
-#define CAMDMA_CSEI(n) (0x0A4 + (n)*0x60)
-#define CAMDMA_CSFI(n) (0x0A8 + (n)*0x60)
-#define CAMDMA_CDEI(n) (0x0AC + (n)*0x60)
-#define CAMDMA_CDFI(n) (0x0B0 + (n)*0x60)
-#define CAMDMA_CSAC(n) (0x0B4 + (n)*0x60)
-#define CAMDMA_CDAC(n) (0x0B8 + (n)*0x60)
-#define CAMDMA_CCEN(n) (0x0BC + (n)*0x60)
-#define CAMDMA_CCFN(n) (0x0C0 + (n)*0x60)
-#define CAMDMA_COLOR(n) (0x0C4 + (n)*0x60)
-
-/* define camera mmu register offsets */
-#define CAMMMU_REVISION 0x000
-#define CAMMMU_SYSCONFIG 0x010
-#define CAMMMU_SYSSTATUS 0x014
-#define CAMMMU_IRQSTATUS 0x018
-#define CAMMMU_IRQENABLE 0x01C
-#define CAMMMU_WALKING_ST 0x040
-#define CAMMMU_CNTL 0x044
-#define CAMMMU_FAULT_AD 0x048
-#define CAMMMU_TTB 0x04C
-#define CAMMMU_LOCK 0x050
-#define CAMMMU_LD_TLB 0x054
-#define CAMMMU_CAM 0x058
-#define CAMMMU_RAM 0x05C
-#define CAMMMU_GFLUSH 0x060
-#define CAMMMU_FLUSH_ENTRY 0x064
-#define CAMMMU_READ_CAM 0x068
-#define CAMMMU_READ_RAM 0x06C
-#define CAMMMU_EMU_FAULT_AD 0x070
-
-/* Define bit fields within selected registers */
-#define CAM_REVISION_MAJOR (15 << 4)
-#define CAM_REVISION_MAJOR_SHIFT 4
-#define CAM_REVISION_MINOR (15 << 0)
-#define CAM_REVISION_MINOR_SHIFT 0
-
-#define CAM_SYSCONFIG_SOFTRESET (1 << 1)
-#define CAM_SYSCONFIG_AUTOIDLE (1 << 0)
-
-#define CAM_SYSSTATUS_RESETDONE (1 << 0)
-
-#define CAM_IRQSTATUS_CC_IRQ (1 << 4)
-#define CAM_IRQSTATUS_MMU_IRQ (1 << 3)
-#define CAM_IRQSTATUS_DMA_IRQ2 (1 << 2)
-#define CAM_IRQSTATUS_DMA_IRQ1 (1 << 1)
-#define CAM_IRQSTATUS_DMA_IRQ0 (1 << 0)
-
-#define CAM_GPO_CAM_S_P_EN (1 << 1)
-#define CAM_GPO_CAM_CCP_MODE (1 << 0)
-
-#define CAM_GPI_CC_DMA_REQ1 (1 << 24)
-#define CAP_GPI_CC_DMA_REQ0 (1 << 23)
-#define CAP_GPI_CAM_MSTANDBY (1 << 21)
-#define CAP_GPI_CAM_WAIT (1 << 20)
-#define CAP_GPI_CAM_S_DATA (1 << 17)
-#define CAP_GPI_CAM_S_CLK (1 << 16)
-#define CAP_GPI_CAM_P_DATA (0xFFF << 3)
-#define CAP_GPI_CAM_P_DATA_SHIFT 3
-#define CAP_GPI_CAM_P_VS (1 << 2)
-#define CAP_GPI_CAM_P_HS (1 << 1)
-#define CAP_GPI_CAM_P_CLK (1 << 0)
-
-#define CC_REVISION_MAJOR (15 << 4)
-#define CC_REVISION_MAJOR_SHIFT 4
-#define CC_REVISION_MINOR (15 << 0)
-#define CC_REVISION_MINOR_SHIFT 0
-
-#define CC_SYSCONFIG_SIDLEMODE (3 << 3)
-#define CC_SYSCONFIG_SIDLEMODE_FIDLE (0 << 3)
-#define CC_SYSCONFIG_SIDLEMODE_NIDLE (1 << 3)
-#define CC_SYSCONFIG_SOFTRESET (1 << 1)
-#define CC_SYSCONFIG_AUTOIDLE (1 << 0)
-
-#define CC_SYSSTATUS_RESETDONE (1 << 0)
-
-#define CC_IRQSTATUS_FS_IRQ (1 << 19)
-#define CC_IRQSTATUS_LE_IRQ (1 << 18)
-#define CC_IRQSTATUS_LS_IRQ (1 << 17)
-#define CC_IRQSTATUS_FE_IRQ (1 << 16)
-#define CC_IRQSTATUS_FW_ERR_IRQ (1 << 10)
-#define CC_IRQSTATUS_FSC_ERR_IRQ (1 << 9)
-#define CC_IRQSTATUS_SSC_ERR_IRQ (1 << 8)
-#define CC_IRQSTATUS_FIFO_NOEMPTY_IRQ (1 << 4)
-#define CC_IRQSTATUS_FIFO_FULL_IRQ (1 << 3)
-#define CC_IRQSTATUS_FIFO_THR_IRQ (1 << 2)
-#define CC_IRQSTATUS_FIFO_OF_IRQ (1 << 1)
-#define CC_IRQSTATUS_FIFO_UF_IRQ (1 << 0)
-
-#define CC_IRQENABLE_FS_IRQ (1 << 19)
-#define CC_IRQENABLE_LE_IRQ (1 << 18)
-#define CC_IRQENABLE_LS_IRQ (1 << 17)
-#define CC_IRQENABLE_FE_IRQ (1 << 16)
-#define CC_IRQENABLE_FW_ERR_IRQ (1 << 10)
-#define CC_IRQENABLE_FSC_ERR_IRQ (1 << 9)
-#define CC_IRQENABLE_SSC_ERR_IRQ (1 << 8)
-#define CC_IRQENABLE_FIFO_NOEMPTY_IRQ (1 << 4)
-#define CC_IRQENABLE_FIFO_FULL_IRQ (1 << 3)
-#define CC_IRQENABLE_FIFO_THR_IRQ (1 << 2)
-#define CC_IRQENABLE_FIFO_OF_IRQ (1 << 1)
-#define CC_IRQENABLE_FIFO_UF_IRQ (1 << 0)
-
-#define CC_CTRL_CC_ONE_SHOT (1 << 20)
-#define CC_CTRL_CC_IF_SYNCHRO (1 << 19)
-#define CC_CTRL_CC_RST (1 << 18)
-#define CC_CTRL_CC_FRAME_TRIG (1 << 17)
-#define CC_CTRL_CC_EN (1 << 16)
-#define CC_CTRL_NOBT_SYNCHRO (1 << 13)
-#define CC_CTRL_BT_CORRECT (1 << 12)
-#define CC_CTRL_PAR_ORDERCAM (1 << 11)
-#define CC_CTRL_PAR_CLK_POL (1 << 10)
-#define CC_CTRL_NOBT_HS_POL (1 << 9)
-#define CC_CTRL_NOBT_VS_POL (1 << 8)
-#define CC_CTRL_PAR_MODE (7 << 1)
-#define CC_CTRL_PAR_MODE_SHIFT 1
-#define CC_CTRL_PAR_MODE_NOBT8 (0 << 1)
-#define CC_CTRL_PAR_MODE_NOBT10 (1 << 1)
-#define CC_CTRL_PAR_MODE_NOBT12 (2 << 1)
-#define CC_CTRL_PAR_MODE_BT8 (4 << 1)
-#define CC_CTRL_PAR_MODE_BT10 (5 << 1)
-#define CC_CTRL_PAR_MODE_FIFOTEST (7 << 1)
-#define CC_CTRL_CCP_MODE (1 << 0)
-
-#define CC_CTRL_DMA_EN (1 << 8)
-#define CC_CTRL_DMA_FIFO_THRESHOLD (0x7F << 0)
-#define CC_CTRL_DMA_FIFO_THRESHOLD_SHIFT 0
-
-#define CC_CTRL_XCLK_DIV (0x1F << 0)
-#define CC_CTRL_XCLK_DIV_SHIFT 0
-#define CC_CTRL_XCLK_DIV_STABLE_LOW (0 << 0)
-#define CC_CTRL_XCLK_DIV_STABLE_HIGH (1 << 0)
-#define CC_CTRL_XCLK_DIV_BYPASS (31 << 0)
-
-#define CC_TEST_FIFO_RD_POINTER (0xFF << 24)
-#define CC_TEST_FIFO_RD_POINTER_SHIFT 24
-#define CC_TEST_FIFO_WR_POINTER (0xFF << 16)
-#define CC_TEST_FIFO_WR_POINTER_SHIFT 16
-#define CC_TEST_FIFO_LEVEL (0xFF << 8)
-#define CC_TEST_FIFO_LEVEL_SHIFT 8
-#define CC_TEST_FIFO_LEVEL_PEAK (0xFF << 0)
-#define CC_TEST_FIFO_LEVEL_PEAK_SHIFT 0
-
-#define CC_GENPAR_FIFO_DEPTH (7 << 0)
-#define CC_GENPAR_FIFO_DEPTH_SHIFT 0
-
-#define CC_CCPDFR_ALPHA (0xFF << 8)
-#define CC_CCPDFR_ALPHA_SHIFT 8
-#define CC_CCPDFR_DATAFORMAT (15 << 0)
-#define CC_CCPDFR_DATAFORMAT_SHIFT 0
-#define CC_CCPDFR_DATAFORMAT_YUV422BE (0 << 0)
-#define CC_CCPDFR_DATAFORMAT_YUV422 (1 << 0)
-#define CC_CCPDFR_DATAFORMAT_YUV420 (2 << 0)
-#define CC_CCPDFR_DATAFORMAT_RGB444 (4 << 0)
-#define CC_CCPDFR_DATAFORMAT_RGB565 (5 << 0)
-#define CC_CCPDFR_DATAFORMAT_RGB888NDE (6 << 0)
-#define CC_CCPDFR_DATAFORMAT_RGB888 (7 << 0)
-#define CC_CCPDFR_DATAFORMAT_RAW8NDE (8 << 0)
-#define CC_CCPDFR_DATAFORMAT_RAW8 (9 << 0)
-#define CC_CCPDFR_DATAFORMAT_RAW10NDE (10 << 0)
-#define CC_CCPDFR_DATAFORMAT_RAW10 (11 << 0)
-#define CC_CCPDFR_DATAFORMAT_RAW12NDE (12 << 0)
-#define CC_CCPDFR_DATAFORMAT_RAW12 (13 << 0)
-#define CC_CCPDFR_DATAFORMAT_JPEG8 (15 << 0)
-
-#define CAMDMA_REVISION_MAJOR (15 << 4)
-#define CAMDMA_REVISION_MAJOR_SHIFT 4
-#define CAMDMA_REVISION_MINOR (15 << 0)
-#define CAMDMA_REVISION_MINOR_SHIFT 0
-
-#define CAMDMA_OCP_SYSCONFIG_MIDLEMODE (3 << 12)
-#define CAMDMA_OCP_SYSCONFIG_MIDLEMODE_FSTANDBY (0 << 12)
-#define CAMDMA_OCP_SYSCONFIG_MIDLEMODE_NSTANDBY (1 << 12)
-#define CAMDMA_OCP_SYSCONFIG_MIDLEMODE_SSTANDBY (2 << 12)
-#define CAMDMA_OCP_SYSCONFIG_FUNC_CLOCK (1 << 9)
-#define CAMDMA_OCP_SYSCONFIG_OCP_CLOCK (1 << 8)
-#define CAMDMA_OCP_SYSCONFIG_EMUFREE (1 << 5)
-#define CAMDMA_OCP_SYSCONFIG_SIDLEMODE (3 << 3)
-#define CAMDMA_OCP_SYSCONFIG_SIDLEMODE_FIDLE (0 << 3)
-#define CAMDMA_OCP_SYSCONFIG_SIDLEMODE_NIDLE (1 << 3)
-#define CAMDMA_OCP_SYSCONFIG_SIDLEMODE_SIDLE (2 << 3)
-#define CAMDMA_OCP_SYSCONFIG_SOFTRESET (1 << 1)
-#define CAMDMA_OCP_SYSCONFIG_AUTOIDLE (1 << 0)
-
-#define CAMDMA_SYSSTATUS_RESETDONE (1 << 0)
-
-#define CAMDMA_GCR_ARBITRATION_RATE (0xFF << 16)
-#define CAMDMA_GCR_ARBITRATION_RATE_SHIFT 16
-#define CAMDMA_GCR_MAX_CHANNEL_FIFO_DEPTH (0xFF << 0)
-#define CAMDMA_GCR_MAX_CHANNEL_FIFO_DEPTH_SHIFT 0
-
-#define CAMDMA_CCR_SEL_SRC_DST_SYNC (1 << 24)
-#define CAMDMA_CCR_PREFETCH (1 << 23)
-#define CAMDMA_CCR_SUPERVISOR (1 << 22)
-#define CAMDMA_CCR_SECURE (1 << 21)
-#define CAMDMA_CCR_BS (1 << 18)
-#define CAMDMA_CCR_TRANSPARENT_COPY_ENABLE (1 << 17)
-#define CAMDMA_CCR_CONSTANT_FILL_ENABLE (1 << 16)
-#define CAMDMA_CCR_DST_AMODE (3 << 14)
-#define CAMDMA_CCR_DST_AMODE_CONST_ADDR (0 << 14)
-#define CAMDMA_CCR_DST_AMODE_POST_INC (1 << 14)
-#define CAMDMA_CCR_DST_AMODE_SGL_IDX (2 << 14)
-#define CAMDMA_CCR_DST_AMODE_DBL_IDX (3 << 14)
-#define CAMDMA_CCR_SRC_AMODE (3 << 12)
-#define CAMDMA_CCR_SRC_AMODE_CONST_ADDR (0 << 12)
-#define CAMDMA_CCR_SRC_AMODE_POST_INC (1 << 12)
-#define CAMDMA_CCR_SRC_AMODE_SGL_IDX (2 << 12)
-#define CAMDMA_CCR_SRC_AMODE_DBL_IDX (3 << 12)
-#define CAMDMA_CCR_WR_ACTIVE (1 << 10)
-#define CAMDMA_CCR_RD_ACTIVE (1 << 9)
-#define CAMDMA_CCR_SUSPEND_SENSITIVE (1 << 8)
-#define CAMDMA_CCR_ENABLE (1 << 7)
-#define CAMDMA_CCR_PRIO (1 << 6)
-#define CAMDMA_CCR_FS (1 << 5)
-#define CAMDMA_CCR_SYNCHRO ((3 << 19) | (31 << 0))
-#define CAMDMA_CCR_SYNCHRO_CAMERA 0x01
-
-#define CAMDMA_CLNK_CTRL_ENABLE_LNK (1 << 15)
-#define CAMDMA_CLNK_CTRL_NEXTLCH_ID (0x1F << 0)
-#define CAMDMA_CLNK_CTRL_NEXTLCH_ID_SHIFT 0
-
-#define CAMDMA_CICR_MISALIGNED_ERR_IE (1 << 11)
-#define CAMDMA_CICR_SUPERVISOR_ERR_IE (1 << 10)
-#define CAMDMA_CICR_SECURE_ERR_IE (1 << 9)
-#define CAMDMA_CICR_TRANS_ERR_IE (1 << 8)
-#define CAMDMA_CICR_PACKET_IE (1 << 7)
-#define CAMDMA_CICR_BLOCK_IE (1 << 5)
-#define CAMDMA_CICR_LAST_IE (1 << 4)
-#define CAMDMA_CICR_FRAME_IE (1 << 3)
-#define CAMDMA_CICR_HALF_IE (1 << 2)
-#define CAMDMA_CICR_DROP_IE (1 << 1)
-
-#define CAMDMA_CSR_MISALIGNED_ERR (1 << 11)
-#define CAMDMA_CSR_SUPERVISOR_ERR (1 << 10)
-#define CAMDMA_CSR_SECURE_ERR (1 << 9)
-#define CAMDMA_CSR_TRANS_ERR (1 << 8)
-#define CAMDMA_CSR_PACKET (1 << 7)
-#define CAMDMA_CSR_SYNC (1 << 6)
-#define CAMDMA_CSR_BLOCK (1 << 5)
-#define CAMDMA_CSR_LAST (1 << 4)
-#define CAMDMA_CSR_FRAME (1 << 3)
-#define CAMDMA_CSR_HALF (1 << 2)
-#define CAMDMA_CSR_DROP (1 << 1)
-
-#define CAMDMA_CSDP_SRC_ENDIANNESS (1 << 21)
-#define CAMDMA_CSDP_SRC_ENDIANNESS_LOCK (1 << 20)
-#define CAMDMA_CSDP_DST_ENDIANNESS (1 << 19)
-#define CAMDMA_CSDP_DST_ENDIANNESS_LOCK (1 << 18)
-#define CAMDMA_CSDP_WRITE_MODE (3 << 16)
-#define CAMDMA_CSDP_WRITE_MODE_WRNP (0 << 16)
-#define CAMDMA_CSDP_WRITE_MODE_POSTED (1 << 16)
-#define CAMDMA_CSDP_WRITE_MODE_POSTED_LAST_WRNP (2 << 16)
-#define CAMDMA_CSDP_DST_BURST_EN (3 << 14)
-#define CAMDMA_CSDP_DST_BURST_EN_1 (0 << 14)
-#define CAMDMA_CSDP_DST_BURST_EN_16 (1 << 14)
-#define CAMDMA_CSDP_DST_BURST_EN_32 (2 << 14)
-#define CAMDMA_CSDP_DST_BURST_EN_64 (3 << 14)
-#define CAMDMA_CSDP_DST_PACKED (1 << 13)
-#define CAMDMA_CSDP_WR_ADD_TRSLT (15 << 9)
-#define CAMDMA_CSDP_WR_ADD_TRSLT_ENABLE_MREQADD (3 << 9)
-#define CAMDMA_CSDP_SRC_BURST_EN (3 << 7)
-#define CAMDMA_CSDP_SRC_BURST_EN_1 (0 << 7)
-#define CAMDMA_CSDP_SRC_BURST_EN_16 (1 << 7)
-#define CAMDMA_CSDP_SRC_BURST_EN_32 (2 << 7)
-#define CAMDMA_CSDP_SRC_BURST_EN_64 (3 << 7)
-#define CAMDMA_CSDP_SRC_PACKED (1 << 6)
-#define CAMDMA_CSDP_RD_ADD_TRSLT (15 << 2)
-#define CAMDMA_CSDP_RD_ADD_TRSLT_ENABLE_MREQADD (3 << 2)
-#define CAMDMA_CSDP_DATA_TYPE (3 << 0)
-#define CAMDMA_CSDP_DATA_TYPE_8BITS (0 << 0)
-#define CAMDMA_CSDP_DATA_TYPE_16BITS (1 << 0)
-#define CAMDMA_CSDP_DATA_TYPE_32BITS (2 << 0)
-
-#define CAMMMU_SYSCONFIG_AUTOIDLE (1 << 0)
-
-/*
- *
- * Declarations.
- *
- */
-
-/* forward declarations */
-struct omap24xxcam_sgdma;
-struct omap24xxcam_dma;
-
-typedef void (*sgdma_callback_t)(struct omap24xxcam_sgdma *cam,
- u32 status, void *arg);
-typedef void (*dma_callback_t)(struct omap24xxcam_dma *cam,
- u32 status, void *arg);
-
-struct channel_state {
- dma_callback_t callback;
- void *arg;
-};
-
-/* sgdma state for each of the possible videobuf_buffers + 2 overlays */
-struct sgdma_state {
- const struct scatterlist *sglist;
- int sglen; /* number of sglist entries */
- int next_sglist; /* index of next sglist entry to process */
- unsigned int bytes_read; /* number of bytes read */
- unsigned int len; /* total length of sglist (excluding
- * bytes due to page alignment) */
- int queued_sglist; /* number of sglist entries queued for DMA */
- u32 csr; /* DMA return code */
- sgdma_callback_t callback;
- void *arg;
-};
-
-/* physical DMA channel management */
-struct omap24xxcam_dma {
- spinlock_t lock; /* Lock for the whole structure. */
-
- void __iomem *base; /* base address for dma controller */
-
- /* While dma_stop!=0, an attempt to start a new DMA transfer will
- * fail.
- */
- atomic_t dma_stop;
- int free_dmach; /* number of dma channels free */
- int next_dmach; /* index of next dma channel to use */
- struct channel_state ch_state[NUM_CAMDMA_CHANNELS];
-};
-
-/* scatter-gather DMA (scatterlist stuff) management */
-struct omap24xxcam_sgdma {
- struct omap24xxcam_dma dma;
-
- spinlock_t lock; /* Lock for the fields below. */
- int free_sgdma; /* number of free sg dma slots */
- int next_sgdma; /* index of next sg dma slot to use */
- struct sgdma_state sg_state[NUM_SG_DMA];
-
- /* Reset timer data */
- struct timer_list reset_timer;
-};
-
-/* per-device data structure */
-struct omap24xxcam_device {
- /*** mutex ***/
- /*
- * mutex serialises access to this structure. Also camera
- * opening and releasing is synchronised by this.
- */
- struct mutex mutex;
-
- /*** general driver state information ***/
- atomic_t users;
- /*
- * Lock to serialise core enabling and disabling and access to
- * sgdma_in_queue.
- */
- spinlock_t core_enable_disable_lock;
- /*
- * Number or sgdma requests in scatter-gather queue, protected
- * by the lock above.
- */
- int sgdma_in_queue;
- /*
- * Sensor interface parameters: interface type, CC_CTRL
- * register value and interface specific data.
- */
- int if_type;
- union {
- struct parallel {
- u32 xclk;
- } bt656;
- } if_u;
- u32 cc_ctrl;
-
- /*** subsystem structures ***/
- struct omap24xxcam_sgdma sgdma;
-
- /*** hardware resources ***/
- unsigned int irq;
- void __iomem *mmio_base;
- unsigned long mmio_base_phys;
- unsigned long mmio_size;
-
- /*** interfaces and device ***/
- struct v4l2_int_device *sdev;
- struct device *dev;
- struct video_device *vfd;
-
- /*** camera and sensor reset related stuff ***/
- struct work_struct sensor_reset_work;
- /*
- * We're in the middle of a reset. Don't enable core if this
- * is non-zero! This exists to help decisionmaking in a case
- * where videobuf_qbuf is called while we are in the middle of
- * a reset.
- */
- atomic_t in_reset;
- /*
- * Non-zero if we don't want any resets for now. Used to
- * prevent reset work to run when we're about to stop
- * streaming.
- */
- atomic_t reset_disable;
-
- /*** video device parameters ***/
- int capture_mem;
-
- /*** camera module clocks ***/
- struct clk *fck;
- struct clk *ick;
-
- /*** capture data ***/
- /* file handle, if streaming is on */
- struct file *streaming;
-};
-
-/* Per-file handle data. */
-struct omap24xxcam_fh {
- spinlock_t vbq_lock; /* spinlock for the videobuf queue */
- struct videobuf_queue vbq;
- struct v4l2_pix_format pix; /* serialise pix by vbq->lock */
- atomic_t field_count; /* field counter for videobuf_buffer */
- /* accessing cam here doesn't need serialisation: it's constant */
- struct omap24xxcam_device *cam;
-};
-
-/*
- *
- * Register I/O functions.
- *
- */
-
-static inline u32 omap24xxcam_reg_in(u32 __iomem *base, u32 offset)
-{
- return readl(base + offset);
-}
-
-static inline u32 omap24xxcam_reg_out(u32 __iomem *base, u32 offset,
- u32 val)
-{
- writel(val, base + offset);
- return val;
-}
-
-static inline u32 omap24xxcam_reg_merge(u32 __iomem *base, u32 offset,
- u32 val, u32 mask)
-{
- u32 __iomem *addr = base + offset;
- u32 new_val = (readl(addr) & ~mask) | (val & mask);
-
- writel(new_val, addr);
- return new_val;
-}
-
-/*
- *
- * Function prototypes.
- *
- */
-
-/* dma prototypes */
-
-void omap24xxcam_dma_hwinit(struct omap24xxcam_dma *dma);
-void omap24xxcam_dma_isr(struct omap24xxcam_dma *dma);
-
-/* sgdma prototypes */
-
-void omap24xxcam_sgdma_process(struct omap24xxcam_sgdma *sgdma);
-int omap24xxcam_sgdma_queue(struct omap24xxcam_sgdma *sgdma,
- const struct scatterlist *sglist, int sglen,
- int len, sgdma_callback_t callback, void *arg);
-void omap24xxcam_sgdma_sync(struct omap24xxcam_sgdma *sgdma);
-void omap24xxcam_sgdma_init(struct omap24xxcam_sgdma *sgdma,
- void __iomem *base,
- void (*reset_callback)(unsigned long data),
- unsigned long reset_callback_data);
-void omap24xxcam_sgdma_exit(struct omap24xxcam_sgdma *sgdma);
-
-#endif
--
1.7.2.5
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
