staging: sm750fb: add sm750 to staging
sm750 of Silicon Motion is pci-e display controller device and has
features like dual display and 2D acceleration. This patch adds the
driver to staging.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/sm750fb/sm750.h b/drivers/staging/sm750fb/sm750.h
new file mode 100644
index 0000000..711676c
--- /dev/null
+++ b/drivers/staging/sm750fb/sm750.h
@@ -0,0 +1,185 @@
+#ifndef LYNXDRV_H_
+#define LYNXDRV_H_
+
+
+
+#define FB_ACCEL_SMI 0xab
+/* please use revision id to distinguish sm750le and sm750*/
+#define SPC_SM750 0
+
+//#define SPC_SM750LE 8
+
+#define MB(x) ((x)<<20)
+#define MHZ(x) ((x) * 1000000)
+/* align should be 2,4,8,16 */
+#define PADDING(align,data) (((data)+(align)-1)&(~((align) -1)))
+extern int smi_indent;
+
+
+struct lynx_accel{
+ /* base virtual address of DPR registers */
+ volatile unsigned char __iomem * dprBase;
+ /* base virtual address of de data port */
+ volatile unsigned char __iomem * dpPortBase;
+
+ /* function fointers */
+ int (*de_init)(struct lynx_accel *);
+
+ int (*de_wait)(void);/* see if hardware ready to work */
+
+ int (*de_fillrect)(struct lynx_accel *,u32,u32,u32,
+ u32,u32,u32,u32,u32,u32);
+
+ int (*de_copyarea)(struct lynx_accel *,u32,u32,u32,u32,
+ u32,u32,u32,u32,
+ u32,u32,u32,u32);
+
+ int (*de_imageblit)(struct lynx_accel *,const char *,u32,u32,u32,
+ u32,u32,u32,u32,u32,u32,u32,u32,u32);
+
+};
+
+/* lynx_share stands for a presentation of two frame buffer
+ that use one smi adaptor , it is similar to a basic class of C++
+*/
+struct lynx_share{
+ /* common members */
+ u16 devid;
+ u8 revid;
+ struct pci_dev * pdev;
+ struct fb_info * fbinfo[2];
+ struct lynx_accel accel;
+ int accel_off;
+ int dual;
+#ifdef CONFIG_MTRR
+ int mtrr_off;
+ struct{
+ int vram;
+ int vram_added;
+ }mtrr;
+#endif
+ /* all smi graphic adaptor got below attributes */
+ resource_size_t vidmem_start;
+ resource_size_t vidreg_start;
+ resource_size_t vidmem_size;
+ resource_size_t vidreg_size;
+ volatile unsigned char __iomem * pvReg;
+ unsigned char __iomem * pvMem;
+ /* locks*/
+ spinlock_t slock;
+ /* function pointers */
+ void (*suspend)(struct lynx_share*);
+ void (*resume)(struct lynx_share*);
+};
+
+struct lynx_cursor{
+ /* cursor width ,height and size */
+ int w;
+ int h;
+ int size;
+ /* hardware limitation */
+ int maxW;
+ int maxH;
+ /* base virtual address and offset of cursor image */
+ char __iomem * vstart;
+ int offset;
+ /* mmio addr of hw cursor */
+ volatile char __iomem * mmio;
+ /* the lynx_share of this adaptor */
+ struct lynx_share * share;
+ /* proc_routines */
+ void (*enable)(struct lynx_cursor *);
+ void (*disable)(struct lynx_cursor *);
+ void (*setSize)(struct lynx_cursor *,int,int);
+ void (*setPos)(struct lynx_cursor *,int,int);
+ void (*setColor)(struct lynx_cursor *,u32,u32);
+ void (*setData)(struct lynx_cursor *,u16,const u8*,const u8*);
+};
+
+struct lynxfb_crtc{
+ unsigned char __iomem * vCursor;//virtual address of cursor
+ unsigned char __iomem * vScreen;//virtual address of on_screen
+ int oCursor;//cursor address offset in vidmem
+ int oScreen;//onscreen address offset in vidmem
+ int channel;/* which channel this crtc stands for*/
+ resource_size_t vidmem_size;/* this view's video memory max size */
+
+ /* below attributes belong to info->fix, their value depends on specific adaptor*/
+ u16 line_pad;/* padding information:0,1,2,4,8,16,... */
+ u16 xpanstep;
+ u16 ypanstep;
+ u16 ywrapstep;
+
+ void * priv;
+
+ int(*proc_setMode)(struct lynxfb_crtc*,
+ struct fb_var_screeninfo*,
+ struct fb_fix_screeninfo*);
+
+ int(*proc_checkMode)(struct lynxfb_crtc*,struct fb_var_screeninfo*);
+ int(*proc_setColReg)(struct lynxfb_crtc*,ushort,ushort,ushort,ushort);
+ void (*clear)(struct lynxfb_crtc*);
+ /* pan display */
+ int(*proc_panDisplay)(struct lynxfb_crtc*, struct fb_var_screeninfo*,
+ struct fb_info*);
+ /* cursor information */
+ struct lynx_cursor cursor;
+};
+
+struct lynxfb_output{
+ int dpms;
+ int paths;
+ /* which paths(s) this output stands for,for sm750:
+ paths=1:means output for panel paths
+ paths=2:means output for crt paths
+ paths=3:means output for both panel and crt paths
+ */
+
+ int * channel;
+ /* which channel these outputs linked with,for sm750:
+ *channel=0 means primary channel
+ *channel=1 means secondary channel
+ output->channel ==> &crtc->channel
+ */
+ void * priv;
+
+ int(*proc_setMode)(struct lynxfb_output*,
+ struct fb_var_screeninfo*,
+ struct fb_fix_screeninfo*);
+
+ int(*proc_checkMode)(struct lynxfb_output*,struct fb_var_screeninfo*);
+ int(*proc_setBLANK)(struct lynxfb_output*,int);
+ void (*clear)(struct lynxfb_output*);
+};
+
+struct lynxfb_par{
+ /* either 0 or 1 for dual head adaptor,0 is the older one registered */
+ int index;
+ unsigned int pseudo_palette[256];
+ struct lynxfb_crtc crtc;
+ struct lynxfb_output output;
+ struct fb_info * info;
+ struct lynx_share * share;
+};
+
+#ifndef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#endif
+
+
+#define PS_TO_HZ(ps) \
+ ({ \
+ unsigned long long hz = 1000*1000*1000*1000ULL; \
+ do_div(hz,ps); \
+ (unsigned long)hz;})
+
+static inline unsigned long ps_to_hz(unsigned int psvalue)
+{
+ unsigned long long numerator=1000*1000*1000*1000ULL;
+ /* 10^12 / picosecond period gives frequency in Hz */
+ do_div(numerator, psvalue);
+ return (unsigned long)numerator;
+}
+
+
+#endif
