From 0c6fb0fbe1fff43af60634b785cd5b7196c8dd03 Mon Sep 17 00:00:00 2001
From: Jon Smirl <jonsmirl@yahoo.com>
Date: Fri, 17 Sep 2004 04:02:28 +0000
Subject: Add linux sysfs i2c support to radeon driver. This patch adds GPL
licensed files to the linux build but not to the BSD directories.
---
linux-core/Makefile.kernel | 2 +-
linux/Makefile.kernel | 2 +-
shared-core/radeon_cp.c | 40 +++++++++++++++++++++++++++++++---------
shared-core/radeon_drv.h | 11 +++++++++--
shared/radeon_cp.c | 40 +++++++++++++++++++++++++++++++---------
shared/radeon_drv.h | 11 +++++++++--
6 files changed, 82 insertions(+), 24 deletions(-)
diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel
index 92e3f73e..5ff3d399 100644
--- a/linux-core/Makefile.kernel
+++ b/linux-core/Makefile.kernel
@@ -13,7 +13,7 @@ mga-objs := mga_drv.o mga_dma.o mga_state.o mga_warp.o mga_irq.o
i810-objs := i810_drv.o i810_dma.o
i830-objs := i830_drv.o i830_dma.o i830_irq.o
i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o
-radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o
+radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o radeon_i2c.o
sis-objs := sis_drv.o sis_ds.o sis_mm.o
ffb-objs := ffb_drv.o ffb_context.o
savage-objs := savage_drv.o savage_dma.o
diff --git a/linux/Makefile.kernel b/linux/Makefile.kernel
index 92e3f73e..5ff3d399 100644
--- a/linux/Makefile.kernel
+++ b/linux/Makefile.kernel
@@ -13,7 +13,7 @@ mga-objs := mga_drv.o mga_dma.o mga_state.o mga_warp.o mga_irq.o
i810-objs := i810_drv.o i810_dma.o
i830-objs := i830_drv.o i830_dma.o i830_irq.o
i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o
-radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o
+radeon-objs := radeon_drv.o radeon_cp.o radeon_state.o radeon_mem.o radeon_irq.o radeon_i2c.o
sis-objs := sis_drv.o sis_ds.o sis_mm.o
ffb-objs := ffb_drv.o ffb_context.o
savage-objs := savage_drv.o savage_dma.o
diff --git a/shared-core/radeon_cp.c b/shared-core/radeon_cp.c
index c5ff768a..27a1beb0 100644
--- a/shared-core/radeon_cp.c
+++ b/shared-core/radeon_cp.c
@@ -36,7 +36,6 @@
#define RADEON_FIFO_DEBUG 0
-
/* CP microcode (from ATI) */
static u32 R200_cp_microcode[][2] = {
{ 0x21007000, 0000000000 },
@@ -1285,12 +1284,8 @@ int radeon_do_cleanup_cp( drm_device_t *dev )
dev_priv->bus_pci_gart ))
DRM_ERROR( "failed to cleanup PCI GART!\n" );
}
-
- {
- int flags = dev_priv->flags;
- memset(dev_priv, 0, sizeof(*dev_priv));
- dev_priv->flags = flags;
- }
+ /* only clear to the start of flags */
+ memset(dev_priv, 0, offsetof(drm_radeon_private_t, flags));
return 0;
}
@@ -1735,8 +1730,9 @@ int radeon_cp_buffers( DRM_IOCTL_ARGS )
/* Always create a map record for MMIO and FB memory, done from DRIVER_POSTINIT */
int radeon_preinit( struct drm_device *dev, unsigned long flags )
{
- u32 save, temp;
+ u32 save, temp, memmode;
drm_radeon_private_t *dev_priv;
+ int ret = 0;
dev_priv = DRM(alloc)( sizeof(drm_radeon_private_t), DRM_MEM_DRIVER );
if ( dev_priv == NULL )
@@ -1746,6 +1742,17 @@ int radeon_preinit( struct drm_device *dev, unsigned long flags )
dev->dev_private = (void *)dev_priv;
dev_priv->flags = flags;
+ /* registers */
+ /* PCI space is twice the real size, so that you can have a RW and RO mapping */
+ if( (ret = DRM(initmap)( dev, pci_resource_start( dev->pdev, 2 ),
+ pci_resource_len( dev->pdev, 2 ) / 2, _DRM_REGISTERS, 0 )))
+ return ret;
+
+ /* framebuffer */
+ if( (ret = DRM(initmap)( dev, pci_resource_start( dev->pdev, 0 ),
+ pci_resource_len( dev->pdev, 0 ), _DRM_FRAME_BUFFER, _DRM_WRITE_COMBINING )))
+ return ret;
+
/* There are signatures in BIOS and PCI-SSID for a PCI card, but they are not very reliable.
Following detection method works for all cards tested so far.
Note, checking AGP_ENABLE bit after drmAgpEnable call can also give the correct result.
@@ -1759,8 +1766,19 @@ int radeon_preinit( struct drm_device *dev, unsigned long flags )
dev_priv->flags |= CHIP_IS_AGP;
DRM_DEBUG("%s card detected\n", ((dev_priv->flags & CHIP_IS_AGP) ? "AGP" : "PCI"));
pci_write_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG, save);
+
+ /* Check if we need a reset */
+ if (!(dev_priv->mmio = drm_core_findmap(dev , pci_resource_start( dev->pdev, 2 ))))
+ return DRM_ERR(ENOMEM);
- return 0;
+ memmode = RADEON_READ(RADEON_MEM_SDRAM_MODE_REG);
+ DRM_DEBUG("Memmode is %x, if zero needs reset\n", memmode);
+ dev->need_reset = (memmode == 0);
+
+#if defined(__linux__)
+ ret = radeon_create_i2c_busses(dev);
+#endif
+ return ret;
}
int radeon_postinit( struct drm_device *dev, unsigned long flags )
@@ -1772,6 +1790,10 @@ int radeon_postcleanup( struct drm_device *dev )
{
drm_radeon_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+#if defined(__linux__)
+ radeon_delete_i2c_busses(dev);
+#endif
DRM(free)( dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER );
dev->dev_private = NULL;
diff --git a/shared-core/radeon_drv.h b/shared-core/radeon_drv.h
index d3c65a00..ec3560aa 100644
--- a/shared-core/radeon_drv.h
+++ b/shared-core/radeon_drv.h
@@ -47,6 +47,10 @@ enum radeon_family {
CHIP_LAST,
};
+#if defined(__linux__)
+#include "radeon_gpl.h"
+#endif
+
/*
* Chip flags
*/
@@ -102,8 +106,6 @@ struct mem_block {
typedef struct drm_radeon_private {
- uint32_t flags; /* see radeon_chip_flags */
-
drm_radeon_ring_buffer_t ring;
drm_radeon_sarea_t *sarea_priv;
@@ -180,6 +182,11 @@ typedef struct drm_radeon_private {
wait_queue_head_t swi_queue;
atomic_t swi_emitted;
+ /* starting from here on, data is preserved accross an open */
+ uint32_t flags; /* see radeon_chip_flags */
+#if defined(__linux__)
+ struct radeon_i2c_chan i2c[4];
+#endif
} drm_radeon_private_t;
typedef struct drm_radeon_buf_priv {
diff --git a/shared/radeon_cp.c b/shared/radeon_cp.c
index c5ff768a..27a1beb0 100644
--- a/shared/radeon_cp.c
+++ b/shared/radeon_cp.c
@@ -36,7 +36,6 @@
#define RADEON_FIFO_DEBUG 0
-
/* CP microcode (from ATI) */
static u32 R200_cp_microcode[][2] = {
{ 0x21007000, 0000000000 },
@@ -1285,12 +1284,8 @@ int radeon_do_cleanup_cp( drm_device_t *dev )
dev_priv->bus_pci_gart ))
DRM_ERROR( "failed to cleanup PCI GART!\n" );
}
-
- {
- int flags = dev_priv->flags;
- memset(dev_priv, 0, sizeof(*dev_priv));
- dev_priv->flags = flags;
- }
+ /* only clear to the start of flags */
+ memset(dev_priv, 0, offsetof(drm_radeon_private_t, flags));
return 0;
}
@@ -1735,8 +1730,9 @@ int radeon_cp_buffers( DRM_IOCTL_ARGS )
/* Always create a map record for MMIO and FB memory, done from DRIVER_POSTINIT */
int radeon_preinit( struct drm_device *dev, unsigned long flags )
{
- u32 save, temp;
+ u32 save, temp, memmode;
drm_radeon_private_t *dev_priv;
+ int ret = 0;
dev_priv = DRM(alloc)( sizeof(drm_radeon_private_t), DRM_MEM_DRIVER );
if ( dev_priv == NULL )
@@ -1746,6 +1742,17 @@ int radeon_preinit( struct drm_device *dev, unsigned long flags )
dev->dev_private = (void *)dev_priv;
dev_priv->flags = flags;
+ /* registers */
+ /* PCI space is twice the real size, so that you can have a RW and RO mapping */
+ if( (ret = DRM(initmap)( dev, pci_resource_start( dev->pdev, 2 ),
+ pci_resource_len( dev->pdev, 2 ) / 2, _DRM_REGISTERS, 0 )))
+ return ret;
+
+ /* framebuffer */
+ if( (ret = DRM(initmap)( dev, pci_resource_start( dev->pdev, 0 ),
+ pci_resource_len( dev->pdev, 0 ), _DRM_FRAME_BUFFER, _DRM_WRITE_COMBINING )))
+ return ret;
+
/* There are signatures in BIOS and PCI-SSID for a PCI card, but they are not very reliable.
Following detection method works for all cards tested so far.
Note, checking AGP_ENABLE bit after drmAgpEnable call can also give the correct result.
@@ -1759,8 +1766,19 @@ int radeon_preinit( struct drm_device *dev, unsigned long flags )
dev_priv->flags |= CHIP_IS_AGP;
DRM_DEBUG("%s card detected\n", ((dev_priv->flags & CHIP_IS_AGP) ? "AGP" : "PCI"));
pci_write_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG, save);
+
+ /* Check if we need a reset */
+ if (!(dev_priv->mmio = drm_core_findmap(dev , pci_resource_start( dev->pdev, 2 ))))
+ return DRM_ERR(ENOMEM);
- return 0;
+ memmode = RADEON_READ(RADEON_MEM_SDRAM_MODE_REG);
+ DRM_DEBUG("Memmode is %x, if zero needs reset\n", memmode);
+ dev->need_reset = (memmode == 0);
+
+#if defined(__linux__)
+ ret = radeon_create_i2c_busses(dev);
+#endif
+ return ret;
}
int radeon_postinit( struct drm_device *dev, unsigned long flags )
@@ -1772,6 +1790,10 @@ int radeon_postcleanup( struct drm_device *dev )
{
drm_radeon_private_t *dev_priv = dev->dev_private;
+ DRM_DEBUG("\n");
+#if defined(__linux__)
+ radeon_delete_i2c_busses(dev);
+#endif
DRM(free)( dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER );
dev->dev_private = NULL;
diff --git a/shared/radeon_drv.h b/shared/radeon_drv.h
index d3c65a00..ec3560aa 100644
--- a/shared/radeon_drv.h
+++ b/shared/radeon_drv.h
@@ -47,6 +47,10 @@ enum radeon_family {
CHIP_LAST,
};
+#if defined(__linux__)
+#include "radeon_gpl.h"
+#endif
+
/*
* Chip flags
*/
@@ -102,8 +106,6 @@ struct mem_block {
typedef struct drm_radeon_private {
- uint32_t flags; /* see radeon_chip_flags */
-
drm_radeon_ring_buffer_t ring;
drm_radeon_sarea_t *sarea_priv;
@@ -180,6 +182,11 @@ typedef struct drm_radeon_private {
wait_queue_head_t swi_queue;
atomic_t swi_emitted;
+ /* starting from here on, data is preserved accross an open */
+ uint32_t flags; /* see radeon_chip_flags */
+#if defined(__linux__)
+ struct radeon_i2c_chan i2c[4];
+#endif
} drm_radeon_private_t;
typedef struct drm_radeon_buf_priv {
--
cgit v1.2.3