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-rw-r--r--drivers/media/platform/soc_camera/mx2_camera.c95
1 files changed, 71 insertions, 24 deletions
diff --git a/drivers/media/platform/soc_camera/mx2_camera.c b/drivers/media/platform/soc_camera/mx2_camera.c
index 9fd9d1c5b218..e575ae82771d 100644
--- a/drivers/media/platform/soc_camera/mx2_camera.c
+++ b/drivers/media/platform/soc_camera/mx2_camera.c
@@ -41,7 +41,6 @@
#include <linux/videodev2.h>
#include <linux/platform_data/camera-mx2.h>
-#include <mach/hardware.h>
#include <asm/dma.h>
@@ -121,11 +120,13 @@
#define CSICR1 0x00
#define CSICR2 0x04
-#define CSISR (cpu_is_mx27() ? 0x08 : 0x18)
+#define CSISR_IMX25 0x18
+#define CSISR_IMX27 0x08
#define CSISTATFIFO 0x0c
#define CSIRFIFO 0x10
#define CSIRXCNT 0x14
-#define CSICR3 (cpu_is_mx27() ? 0x1C : 0x08)
+#define CSICR3_IMX25 0x08
+#define CSICR3_IMX27 0x1c
#define CSIDMASA_STATFIFO 0x20
#define CSIDMATA_STATFIFO 0x24
#define CSIDMASA_FB1 0x28
@@ -268,6 +269,11 @@ struct mx2_buffer {
struct mx2_buf_internal internal;
};
+enum mx2_camera_type {
+ IMX25_CAMERA,
+ IMX27_CAMERA,
+};
+
struct mx2_camera_dev {
struct device *dev;
struct soc_camera_host soc_host;
@@ -291,6 +297,9 @@ struct mx2_camera_dev {
struct mx2_buffer *fb2_active;
u32 csicr1;
+ u32 reg_csisr;
+ u32 reg_csicr3;
+ enum mx2_camera_type devtype;
struct mx2_buf_internal buf_discard[2];
void *discard_buffer;
@@ -303,6 +312,29 @@ struct mx2_camera_dev {
struct vb2_alloc_ctx *alloc_ctx;
};
+static struct platform_device_id mx2_camera_devtype[] = {
+ {
+ .name = "imx25-camera",
+ .driver_data = IMX25_CAMERA,
+ }, {
+ .name = "imx27-camera",
+ .driver_data = IMX27_CAMERA,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(platform, mx2_camera_devtype);
+
+static inline int is_imx25_camera(struct mx2_camera_dev *pcdev)
+{
+ return pcdev->devtype == IMX25_CAMERA;
+}
+
+static inline int is_imx27_camera(struct mx2_camera_dev *pcdev)
+{
+ return pcdev->devtype == IMX27_CAMERA;
+}
+
static struct mx2_buffer *mx2_ibuf_to_buf(struct mx2_buf_internal *int_buf)
{
return container_of(int_buf, struct mx2_buffer, internal);
@@ -434,9 +466,9 @@ static void mx2_camera_deactivate(struct mx2_camera_dev *pcdev)
clk_disable_unprepare(pcdev->clk_csi);
writel(0, pcdev->base_csi + CSICR1);
- if (cpu_is_mx27()) {
+ if (is_imx27_camera(pcdev)) {
writel(0, pcdev->base_emma + PRP_CNTL);
- } else if (cpu_is_mx25()) {
+ } else if (is_imx25_camera(pcdev)) {
spin_lock_irqsave(&pcdev->lock, flags);
pcdev->fb1_active = NULL;
pcdev->fb2_active = NULL;
@@ -466,7 +498,7 @@ static int mx2_camera_add_device(struct soc_camera_device *icd)
csicr1 = CSICR1_MCLKEN;
- if (cpu_is_mx27())
+ if (is_imx27_camera(pcdev))
csicr1 |= CSICR1_PRP_IF_EN | CSICR1_FCC |
CSICR1_RXFF_LEVEL(0);
@@ -542,7 +574,7 @@ out:
static irqreturn_t mx25_camera_irq(int irq_csi, void *data)
{
struct mx2_camera_dev *pcdev = data;
- u32 status = readl(pcdev->base_csi + CSISR);
+ u32 status = readl(pcdev->base_csi + pcdev->reg_csisr);
if (status & CSISR_DMA_TSF_FB1_INT)
mx25_camera_frame_done(pcdev, 1, MX2_STATE_DONE);
@@ -551,7 +583,7 @@ static irqreturn_t mx25_camera_irq(int irq_csi, void *data)
/* FIXME: handle CSISR_RFF_OR_INT */
- writel(status, pcdev->base_csi + CSISR);
+ writel(status, pcdev->base_csi + pcdev->reg_csisr);
return IRQ_HANDLED;
}
@@ -636,7 +668,7 @@ static void mx2_videobuf_queue(struct vb2_buffer *vb)
buf->state = MX2_STATE_QUEUED;
list_add_tail(&buf->internal.queue, &pcdev->capture);
- if (cpu_is_mx25()) {
+ if (is_imx25_camera(pcdev)) {
u32 csicr3, dma_inten = 0;
if (pcdev->fb1_active == NULL) {
@@ -655,20 +687,20 @@ static void mx2_videobuf_queue(struct vb2_buffer *vb)
list_del(&buf->internal.queue);
buf->state = MX2_STATE_ACTIVE;
- csicr3 = readl(pcdev->base_csi + CSICR3);
+ csicr3 = readl(pcdev->base_csi + pcdev->reg_csicr3);
/* Reflash DMA */
writel(csicr3 | CSICR3_DMA_REFLASH_RFF,
- pcdev->base_csi + CSICR3);
+ pcdev->base_csi + pcdev->reg_csicr3);
/* clear & enable interrupts */
- writel(dma_inten, pcdev->base_csi + CSISR);
+ writel(dma_inten, pcdev->base_csi + pcdev->reg_csisr);
pcdev->csicr1 |= dma_inten;
writel(pcdev->csicr1, pcdev->base_csi + CSICR1);
/* enable DMA */
csicr3 |= CSICR3_DMA_REQ_EN_RFF | CSICR3_RXFF_LEVEL(1);
- writel(csicr3, pcdev->base_csi + CSICR3);
+ writel(csicr3, pcdev->base_csi + pcdev->reg_csicr3);
}
}
@@ -712,7 +744,7 @@ static void mx2_videobuf_release(struct vb2_buffer *vb)
*/
spin_lock_irqsave(&pcdev->lock, flags);
- if (cpu_is_mx25() && buf->state == MX2_STATE_ACTIVE) {
+ if (is_imx25_camera(pcdev) && buf->state == MX2_STATE_ACTIVE) {
if (pcdev->fb1_active == buf) {
pcdev->csicr1 &= ~CSICR1_FB1_DMA_INTEN;
writel(0, pcdev->base_csi + CSIDMASA_FB1);
@@ -835,7 +867,7 @@ static int mx2_start_streaming(struct vb2_queue *q, unsigned int count)
unsigned long phys;
int bytesperline;
- if (cpu_is_mx27()) {
+ if (is_imx27_camera(pcdev)) {
unsigned long flags;
if (count < 2)
return -EINVAL;
@@ -930,7 +962,7 @@ static int mx2_stop_streaming(struct vb2_queue *q)
void *b;
u32 cntl;
- if (cpu_is_mx27()) {
+ if (is_imx27_camera(pcdev)) {
spin_lock_irqsave(&pcdev->lock, flags);
cntl = readl(pcdev->base_emma + PRP_CNTL);
@@ -1082,11 +1114,11 @@ static int mx2_camera_set_bus_param(struct soc_camera_device *icd)
if (bytesperline < 0)
return bytesperline;
- if (cpu_is_mx27()) {
+ if (is_imx27_camera(pcdev)) {
ret = mx27_camera_emma_prp_reset(pcdev);
if (ret)
return ret;
- } else if (cpu_is_mx25()) {
+ } else if (is_imx25_camera(pcdev)) {
writel((bytesperline * icd->user_height) >> 2,
pcdev->base_csi + CSIRXCNT);
writel((bytesperline << 16) | icd->user_height,
@@ -1392,7 +1424,7 @@ static int mx2_camera_try_fmt(struct soc_camera_device *icd,
/* FIXME: implement MX27 limits */
/* limit to MX25 hardware capabilities */
- if (cpu_is_mx25()) {
+ if (is_imx25_camera(pcdev)) {
if (xlate->host_fmt->bits_per_sample <= 8)
width_limit = 0xffff * 4;
else
@@ -1726,6 +1758,20 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
goto exit;
}
+ pcdev->devtype = pdev->id_entry->driver_data;
+ switch (pcdev->devtype) {
+ case IMX25_CAMERA:
+ pcdev->reg_csisr = CSISR_IMX25;
+ pcdev->reg_csicr3 = CSICR3_IMX25;
+ break;
+ case IMX27_CAMERA:
+ pcdev->reg_csisr = CSISR_IMX27;
+ pcdev->reg_csicr3 = CSICR3_IMX27;
+ break;
+ default:
+ break;
+ }
+
pcdev->clk_csi = devm_clk_get(&pdev->dev, "ahb");
if (IS_ERR(pcdev->clk_csi)) {
dev_err(&pdev->dev, "Could not get csi clock\n");
@@ -1763,7 +1809,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
pcdev->dev = &pdev->dev;
platform_set_drvdata(pdev, pcdev);
- if (cpu_is_mx25()) {
+ if (is_imx25_camera(pcdev)) {
err = devm_request_irq(&pdev->dev, irq_csi, mx25_camera_irq, 0,
MX2_CAM_DRV_NAME, pcdev);
if (err) {
@@ -1772,7 +1818,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
}
}
- if (cpu_is_mx27()) {
+ if (is_imx27_camera(pcdev)) {
err = mx27_camera_emma_init(pdev);
if (err)
goto exit;
@@ -1789,7 +1835,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
pcdev->soc_host.priv = pcdev;
pcdev->soc_host.v4l2_dev.dev = &pdev->dev;
pcdev->soc_host.nr = pdev->id;
- if (cpu_is_mx25())
+ if (is_imx25_camera(pcdev))
pcdev->soc_host.capabilities = SOCAM_HOST_CAP_STRIDE;
pcdev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
@@ -1809,7 +1855,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
exit_free_emma:
vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
eallocctx:
- if (cpu_is_mx27()) {
+ if (is_imx27_camera(pcdev)) {
clk_disable_unprepare(pcdev->clk_emma_ipg);
clk_disable_unprepare(pcdev->clk_emma_ahb);
}
@@ -1827,7 +1873,7 @@ static int __devexit mx2_camera_remove(struct platform_device *pdev)
vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
- if (cpu_is_mx27()) {
+ if (is_imx27_camera(pcdev)) {
clk_disable_unprepare(pcdev->clk_emma_ipg);
clk_disable_unprepare(pcdev->clk_emma_ahb);
}
@@ -1841,6 +1887,7 @@ static struct platform_driver mx2_camera_driver = {
.driver = {
.name = MX2_CAM_DRV_NAME,
},
+ .id_table = mx2_camera_devtype,
.remove = __devexit_p(mx2_camera_remove),
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-11 10:07:49 +0000