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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright 2010 Matt Turner.
* Copyright 2012 Red Hat
*
* Authors: Matthew Garrett
* Matt Turner
* Dave Airlie
*/
#ifndef __MGAG200_DRV_H__
#define __MGAG200_DRV_H__
#include <linux/i2c-algo-bit.h>
#include <linux/i2c.h>
#include <video/vga.h>
#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_encoder.h>
#include <drm/drm_gem.h>
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_plane.h>
#include "mgag200_reg.h"
#define DRIVER_AUTHOR "Matthew Garrett"
#define DRIVER_NAME "mgag200"
#define DRIVER_DESC "MGA G200 SE"
#define DRIVER_DATE "20110418"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 0
#define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg))
#define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg))
#define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg))
#define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg))
#define MGA_BIOS_OFFSET 0x7ffc
#define ATTR_INDEX 0x1fc0
#define ATTR_DATA 0x1fc1
#define WREG_MISC(v) \
WREG8(MGA_MISC_OUT, v)
#define RREG_MISC(v) \
((v) = RREG8(MGA_MISC_IN))
#define WREG_MISC_MASKED(v, mask) \
do { \
u8 misc_; \
u8 mask_ = (mask); \
RREG_MISC(misc_); \
misc_ &= ~mask_; \
misc_ |= ((v) & mask_); \
WREG_MISC(misc_); \
} while (0)
#define WREG_ATTR(reg, v) \
do { \
RREG8(0x1fda); \
WREG8(ATTR_INDEX, reg); \
WREG8(ATTR_DATA, v); \
} while (0) \
#define RREG_SEQ(reg, v) \
do { \
WREG8(MGAREG_SEQ_INDEX, reg); \
v = RREG8(MGAREG_SEQ_DATA); \
} while (0) \
#define WREG_SEQ(reg, v) \
do { \
WREG8(MGAREG_SEQ_INDEX, reg); \
WREG8(MGAREG_SEQ_DATA, v); \
} while (0) \
#define RREG_CRT(reg, v) \
do { \
WREG8(MGAREG_CRTC_INDEX, reg); \
v = RREG8(MGAREG_CRTC_DATA); \
} while (0) \
#define WREG_CRT(reg, v) \
do { \
WREG8(MGAREG_CRTC_INDEX, reg); \
WREG8(MGAREG_CRTC_DATA, v); \
} while (0) \
#define RREG_ECRT(reg, v) \
do { \
WREG8(MGAREG_CRTCEXT_INDEX, reg); \
v = RREG8(MGAREG_CRTCEXT_DATA); \
} while (0) \
#define WREG_ECRT(reg, v) \
do { \
WREG8(MGAREG_CRTCEXT_INDEX, reg); \
WREG8(MGAREG_CRTCEXT_DATA, v); \
} while (0) \
#define GFX_INDEX 0x1fce
#define GFX_DATA 0x1fcf
#define WREG_GFX(reg, v) \
do { \
WREG8(GFX_INDEX, reg); \
WREG8(GFX_DATA, v); \
} while (0) \
#define DAC_INDEX 0x3c00
#define DAC_DATA 0x3c0a
#define WREG_DAC(reg, v) \
do { \
WREG8(DAC_INDEX, reg); \
WREG8(DAC_DATA, v); \
} while (0) \
#define MGA_MISC_OUT 0x1fc2
#define MGA_MISC_IN 0x1fcc
/*
* TODO: This is a pretty large set of default values for all kinds of
* settings. It should be split and set in the various DRM helpers,
* such as the CRTC reset or atomic_enable helpers. The PLL values
* probably belong to each model's PLL code.
*/
#define MGAG200_DAC_DEFAULT(xvrefctrl, xpixclkctrl, xmiscctrl, xsyspllm, xsysplln, xsyspllp) \
/* 0x00: */ 0, 0, 0, 0, 0, 0, 0x00, 0, \
/* 0x08: */ 0, 0, 0, 0, 0, 0, 0, 0, \
/* 0x10: */ 0, 0, 0, 0, 0, 0, 0, 0, \
/* 0x18: */ (xvrefctrl), \
/* 0x19: */ 0, \
/* 0x1a: */ (xpixclkctrl), \
/* 0x1b: */ 0xff, 0xbf, 0x20, \
/* 0x1e: */ (xmiscctrl), \
/* 0x1f: */ 0x20, \
/* 0x20: */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
/* 0x28: */ 0x00, 0x00, 0x00, 0x00, \
/* 0x2c: */ (xsyspllm), \
/* 0x2d: */ (xsysplln), \
/* 0x2e: */ (xsyspllp), \
/* 0x2f: */ 0x40, \
/* 0x30: */ 0x00, 0xb0, 0x00, 0xc2, 0x34, 0x14, 0x02, 0x83, \
/* 0x38: */ 0x00, 0x93, 0x00, 0x77, 0x00, 0x00, 0x00, 0x3a, \
/* 0x40: */ 0, 0, 0, 0, 0, 0, 0, 0, \
/* 0x48: */ 0, 0, 0, 0, 0, 0, 0, 0 \
#define MGAG200_LUT_SIZE 256
#define MGAG200_MAX_FB_HEIGHT 4096
#define MGAG200_MAX_FB_WIDTH 4096
struct mga_device;
/*
* Stores parameters for programming the PLLs
*
* Fref: reference frequency (A: 25.175 Mhz, B: 28.361, C: XX Mhz)
* Fo: output frequency
* Fvco = Fref * (N / M)
* Fo = Fvco / P
*
* S = [0..3]
*/
struct mgag200_pll_values {
unsigned int m;
unsigned int n;
unsigned int p;
unsigned int s;
};
struct mgag200_crtc_state {
struct drm_crtc_state base;
/* Primary-plane format; required for modesetting and color mgmt. */
const struct drm_format_info *format;
struct mgag200_pll_values pixpllc;
};
static inline struct mgag200_crtc_state *to_mgag200_crtc_state(struct drm_crtc_state *base)
{
return container_of(base, struct mgag200_crtc_state, base);
}
struct mga_i2c_chan {
struct i2c_adapter adapter;
struct drm_device *dev;
struct i2c_algo_bit_data bit;
int data, clock;
};
enum mga_type {
G200_PCI,
G200_AGP,
G200_SE_A,
G200_SE_B,
G200_WB,
G200_EV,
G200_EH,
G200_EH3,
G200_ER,
G200_EW3,
};
struct mgag200_device_info {
u16 max_hdisplay;
u16 max_vdisplay;
/*
* Maximum memory bandwidth (MiB/sec). Setting this to zero disables
* the rsp test during mode validation.
*/
unsigned long max_mem_bandwidth;
/* HW has external source (e.g., BMC) to synchronize with */
bool has_vidrst:1;
struct {
unsigned data_bit:3;
unsigned clock_bit:3;
} i2c;
/*
* HW does not handle 'startadd' register correctly. Always set
* it's value to 0.
*/
bool bug_no_startadd:1;
};
#define MGAG200_DEVICE_INFO_INIT(_max_hdisplay, _max_vdisplay, _max_mem_bandwidth, \
_has_vidrst, _i2c_data_bit, _i2c_clock_bit, \
_bug_no_startadd) \
{ \
.max_hdisplay = (_max_hdisplay), \
.max_vdisplay = (_max_vdisplay), \
.max_mem_bandwidth = (_max_mem_bandwidth), \
.has_vidrst = (_has_vidrst), \
.i2c = { \
.data_bit = (_i2c_data_bit), \
.clock_bit = (_i2c_clock_bit), \
}, \
.bug_no_startadd = (_bug_no_startadd), \
}
struct mgag200_device_funcs {
/*
* Disables an external reset source (i.e., BMC) before programming
* a new display mode.
*/
void (*disable_vidrst)(struct mga_device *mdev);
/*
* Enables an external reset source (i.e., BMC) after programming
* a new display mode.
*/
void (*enable_vidrst)(struct mga_device *mdev);
/*
* Validate that the given state can be programmed into PIXPLLC. On
* success, the calculated parameters should be stored in the CRTC's
* state in struct @mgag200_crtc_state.pixpllc.
*/
int (*pixpllc_atomic_check)(struct drm_crtc *crtc, struct drm_atomic_state *new_state);
/*
* Program PIXPLLC from the CRTC state. The parameters should have been
* stored in struct @mgag200_crtc_state.pixpllc by the corresponding
* implementation of @pixpllc_atomic_check.
*/
void (*pixpllc_atomic_update)(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
};
struct mga_device {
struct drm_device base;
const struct mgag200_device_info *info;
const struct mgag200_device_funcs *funcs;
struct resource *rmmio_res;
void __iomem *rmmio;
struct mutex rmmio_lock; /* Protects access to rmmio */
struct resource *vram_res;
void __iomem *vram;
resource_size_t vram_available;
struct drm_plane primary_plane;
struct drm_crtc crtc;
struct drm_encoder encoder;
struct mga_i2c_chan i2c;
struct drm_connector connector;
};
static inline struct mga_device *to_mga_device(struct drm_device *dev)
{
return container_of(dev, struct mga_device, base);
}
struct mgag200_g200_device {
struct mga_device base;
/* PLL constants */
long ref_clk;
long pclk_min;
long pclk_max;
};
static inline struct mgag200_g200_device *to_mgag200_g200_device(struct drm_device *dev)
{
return container_of(to_mga_device(dev), struct mgag200_g200_device, base);
}
struct mgag200_g200se_device {
struct mga_device base;
/* SE model number stored in reg 0x1e24 */
u32 unique_rev_id;
};
static inline struct mgag200_g200se_device *to_mgag200_g200se_device(struct drm_device *dev)
{
return container_of(to_mga_device(dev), struct mgag200_g200se_device, base);
}
/* mgag200_drv.c */
int mgag200_init_pci_options(struct pci_dev *pdev, u32 option, u32 option2);
resource_size_t mgag200_probe_vram(void __iomem *mem, resource_size_t size);
resource_size_t mgag200_device_probe_vram(struct mga_device *mdev);
int mgag200_device_preinit(struct mga_device *mdev);
int mgag200_device_init(struct mga_device *mdev,
const struct mgag200_device_info *info,
const struct mgag200_device_funcs *funcs);
/* mgag200_<device type>.c */
struct mga_device *mgag200_g200_device_create(struct pci_dev *pdev, const struct drm_driver *drv);
struct mga_device *mgag200_g200se_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
enum mga_type type);
void mgag200_g200wb_init_registers(struct mga_device *mdev);
void mgag200_g200wb_pixpllc_atomic_update(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
struct mga_device *mgag200_g200wb_device_create(struct pci_dev *pdev, const struct drm_driver *drv);
struct mga_device *mgag200_g200ev_device_create(struct pci_dev *pdev, const struct drm_driver *drv);
void mgag200_g200eh_init_registers(struct mga_device *mdev);
void mgag200_g200eh_pixpllc_atomic_update(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
struct mga_device *mgag200_g200eh_device_create(struct pci_dev *pdev,
const struct drm_driver *drv);
struct mga_device *mgag200_g200eh3_device_create(struct pci_dev *pdev,
const struct drm_driver *drv);
struct mga_device *mgag200_g200er_device_create(struct pci_dev *pdev,
const struct drm_driver *drv);
struct mga_device *mgag200_g200ew3_device_create(struct pci_dev *pdev,
const struct drm_driver *drv);
/*
* mgag200_mode.c
*/
struct drm_crtc;
struct drm_crtc_state;
struct drm_display_mode;
struct drm_plane;
struct drm_atomic_state;
extern const uint32_t mgag200_primary_plane_formats[];
extern const size_t mgag200_primary_plane_formats_size;
extern const uint64_t mgag200_primary_plane_fmtmods[];
int mgag200_primary_plane_helper_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *new_state);
void mgag200_primary_plane_helper_atomic_update(struct drm_plane *plane,
struct drm_atomic_state *old_state);
void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane,
struct drm_atomic_state *old_state);
#define MGAG200_PRIMARY_PLANE_HELPER_FUNCS \
DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, \
.atomic_check = mgag200_primary_plane_helper_atomic_check, \
.atomic_update = mgag200_primary_plane_helper_atomic_update, \
.atomic_disable = mgag200_primary_plane_helper_atomic_disable
#define MGAG200_PRIMARY_PLANE_FUNCS \
.update_plane = drm_atomic_helper_update_plane, \
.disable_plane = drm_atomic_helper_disable_plane, \
.destroy = drm_plane_cleanup, \
DRM_GEM_SHADOW_PLANE_FUNCS
enum drm_mode_status mgag200_crtc_helper_mode_valid(struct drm_crtc *crtc,
const struct drm_display_mode *mode);
int mgag200_crtc_helper_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *new_state);
void mgag200_crtc_helper_atomic_flush(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
void mgag200_crtc_helper_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
void mgag200_crtc_helper_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
#define MGAG200_CRTC_HELPER_FUNCS \
.mode_valid = mgag200_crtc_helper_mode_valid, \
.atomic_check = mgag200_crtc_helper_atomic_check, \
.atomic_flush = mgag200_crtc_helper_atomic_flush, \
.atomic_enable = mgag200_crtc_helper_atomic_enable, \
.atomic_disable = mgag200_crtc_helper_atomic_disable
void mgag200_crtc_reset(struct drm_crtc *crtc);
struct drm_crtc_state *mgag200_crtc_atomic_duplicate_state(struct drm_crtc *crtc);
void mgag200_crtc_atomic_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *crtc_state);
#define MGAG200_CRTC_FUNCS \
.reset = mgag200_crtc_reset, \
.destroy = drm_crtc_cleanup, \
.set_config = drm_atomic_helper_set_config, \
.page_flip = drm_atomic_helper_page_flip, \
.atomic_duplicate_state = mgag200_crtc_atomic_duplicate_state, \
.atomic_destroy_state = mgag200_crtc_atomic_destroy_state
#define MGAG200_DAC_ENCODER_FUNCS \
.destroy = drm_encoder_cleanup
int mgag200_vga_connector_helper_get_modes(struct drm_connector *connector);
#define MGAG200_VGA_CONNECTOR_HELPER_FUNCS \
.get_modes = mgag200_vga_connector_helper_get_modes
#define MGAG200_VGA_CONNECTOR_FUNCS \
.reset = drm_atomic_helper_connector_reset, \
.fill_modes = drm_helper_probe_single_connector_modes, \
.destroy = drm_connector_cleanup, \
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, \
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state
void mgag200_set_mode_regs(struct mga_device *mdev, const struct drm_display_mode *mode);
void mgag200_set_format_regs(struct mga_device *mdev, const struct drm_format_info *format);
void mgag200_enable_display(struct mga_device *mdev);
void mgag200_init_registers(struct mga_device *mdev);
int mgag200_mode_config_init(struct mga_device *mdev, resource_size_t vram_available);
/* mgag200_bmc.c */
void mgag200_bmc_disable_vidrst(struct mga_device *mdev);
void mgag200_bmc_enable_vidrst(struct mga_device *mdev);
/* mgag200_i2c.c */
int mgag200_i2c_init(struct mga_device *mdev, struct mga_i2c_chan *i2c);
#endif /* __MGAG200_DRV_H__ */
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