/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef LYNXDRV_H_
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#define LYNXDRV_H_
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#define FB_ACCEL_SMI 0xab
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#define MHZ(x) ((x) * 1000000)
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#define DEFAULT_SM750_CHIP_CLOCK 290
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#define DEFAULT_SM750LE_CHIP_CLOCK 333
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#ifndef SM750LE_REVISION_ID
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#define SM750LE_REVISION_ID ((unsigned char)0xfe)
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#endif
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enum sm750_pnltype {
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sm750_24TFT = 0, /* 24bit tft */
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sm750_dualTFT = 2, /* dual 18 bit tft */
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sm750_doubleTFT = 1, /* 36 bit double pixel tft */
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};
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/* vga channel is not concerned */
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enum sm750_dataflow {
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sm750_simul_pri, /* primary => all head */
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sm750_simul_sec, /* secondary => all head */
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sm750_dual_normal, /* primary => panel head and secondary => crt */
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sm750_dual_swap, /* primary => crt head and secondary => panel */
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};
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enum sm750_channel {
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sm750_primary = 0,
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/* enum value equal to the register filed data */
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sm750_secondary = 1,
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};
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enum sm750_path {
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sm750_panel = 1,
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sm750_crt = 2,
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sm750_pnc = 3, /* panel and crt */
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};
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struct init_status {
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ushort powerMode;
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/* below three clocks are in unit of MHZ*/
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ushort chip_clk;
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ushort mem_clk;
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ushort master_clk;
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ushort setAllEngOff;
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ushort resetMemory;
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};
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struct lynx_accel {
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/* base virtual address of DPR registers */
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volatile unsigned char __iomem *dprBase;
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/* base virtual address of de data port */
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volatile unsigned char __iomem *dpPortBase;
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/* function pointers */
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void (*de_init)(struct lynx_accel *);
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int (*de_wait)(void);/* see if hardware ready to work */
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int (*de_fillrect)(struct lynx_accel *,
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u32, u32, u32, u32,
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u32, u32, u32, u32, u32);
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int (*de_copyarea)(struct lynx_accel *,
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u32, u32, u32, u32,
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u32, u32, u32, u32,
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u32, u32, u32, u32);
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int (*de_imageblit)(struct lynx_accel *, const char *,
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u32, u32, u32, u32,
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u32, u32, u32, u32,
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u32, u32, u32, u32);
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};
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struct sm750_dev {
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/* common members */
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u16 devid;
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u8 revid;
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struct pci_dev *pdev;
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struct fb_info *fbinfo[2];
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struct lynx_accel accel;
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int accel_off;
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int fb_count;
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int mtrr_off;
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struct{
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int vram;
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} mtrr;
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/* all smi graphic adaptor got below attributes */
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unsigned long vidmem_start;
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unsigned long vidreg_start;
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__u32 vidmem_size;
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__u32 vidreg_size;
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void __iomem *pvReg;
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unsigned char __iomem *pvMem;
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/* locks*/
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spinlock_t slock;
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struct init_status initParm;
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enum sm750_pnltype pnltype;
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enum sm750_dataflow dataflow;
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int nocrt;
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/*
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* 0: no hardware cursor
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* 1: primary crtc hw cursor enabled,
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* 2: secondary crtc hw cursor enabled
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* 3: both ctrc hw cursor enabled
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*/
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int hwCursor;
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};
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struct lynx_cursor {
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/* cursor width ,height and size */
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int w;
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int h;
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int size;
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/* hardware limitation */
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int maxW;
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int maxH;
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/* base virtual address and offset of cursor image */
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char __iomem *vstart;
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int offset;
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/* mmio addr of hw cursor */
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volatile char __iomem *mmio;
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};
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struct lynxfb_crtc {
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unsigned char __iomem *vCursor; /* virtual address of cursor */
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unsigned char __iomem *vScreen; /* virtual address of on_screen */
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int oCursor; /* cursor address offset in vidmem */
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int oScreen; /* onscreen address offset in vidmem */
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int channel;/* which channel this crtc stands for*/
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resource_size_t vidmem_size;/* this view's video memory max size */
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/* below attributes belong to info->fix, their value depends on specific adaptor*/
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u16 line_pad;/* padding information:0,1,2,4,8,16,... */
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u16 xpanstep;
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u16 ypanstep;
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u16 ywrapstep;
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void *priv;
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/* cursor information */
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struct lynx_cursor cursor;
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};
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struct lynxfb_output {
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int dpms;
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int paths;
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/*
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* which paths(s) this output stands for,for sm750:
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* paths=1:means output for panel paths
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* paths=2:means output for crt paths
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* paths=3:means output for both panel and crt paths
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*/
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int *channel;
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/*
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* which channel these outputs linked with,for sm750:
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* *channel=0 means primary channel
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* *channel=1 means secondary channel
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* output->channel ==> &crtc->channel
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*/
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void *priv;
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int (*proc_setBLANK)(struct lynxfb_output *output, int blank);
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};
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struct lynxfb_par {
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/* either 0 or 1 for dual head adaptor,0 is the older one registered */
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int index;
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unsigned int pseudo_palette[256];
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struct lynxfb_crtc crtc;
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struct lynxfb_output output;
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struct fb_info *info;
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struct sm750_dev *dev;
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};
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static inline unsigned long ps_to_hz(unsigned int psvalue)
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{
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unsigned long long numerator = 1000 * 1000 * 1000 * 1000ULL;
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/* 10^12 / picosecond period gives frequency in Hz */
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do_div(numerator, psvalue);
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return (unsigned long)numerator;
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}
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int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev);
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int hw_sm750_inithw(struct sm750_dev *sm750_dev, struct pci_dev *pdev);
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void hw_sm750_initAccel(struct sm750_dev *sm750_dev);
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int hw_sm750_deWait(void);
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int hw_sm750le_deWait(void);
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int hw_sm750_output_setMode(struct lynxfb_output *output,
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struct fb_var_screeninfo *var,
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struct fb_fix_screeninfo *fix);
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int hw_sm750_crtc_checkMode(struct lynxfb_crtc *crtc,
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struct fb_var_screeninfo *var);
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int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc,
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struct fb_var_screeninfo *var,
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struct fb_fix_screeninfo *fix);
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int hw_sm750_setColReg(struct lynxfb_crtc *crtc, ushort index,
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ushort red, ushort green, ushort blue);
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int hw_sm750_setBLANK(struct lynxfb_output *output, int blank);
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int hw_sm750le_setBLANK(struct lynxfb_output *output, int blank);
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int hw_sm750_pan_display(struct lynxfb_crtc *crtc,
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const struct fb_var_screeninfo *var,
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const struct fb_info *info);
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#endif
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