diff options
author | Dave Airlie <airlied@redhat.com> | 2014-03-28 11:05:12 +1000 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2014-05-19 11:13:57 +1000 |
commit | 83c6620bae3f14adb2430fdcc367980fe3b7bee2 (patch) | |
tree | b7d9d9d1d70c2ae5fb5479bdd16b7f04d9282892 /drivers/gpu/drm/ast/ast_main.c | |
parent | 0e5ce92438146655d60447802d2c11bdbc089329 (diff) |
drm/ast: initial DP501 support (v0.2)
This is the initial attempt at porting the DP501 code from the userspace
driver,
the firmware file is in
http://people.freedesktop.org/~airlied/ast_dp501_fw.bin
this should really be exposed as another encoder/connector that is cloneable
v0.2:
init 3rd tx properly,
add scratch reduction of VRAM size
backup firmware properly.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/ast/ast_main.c')
-rw-r--r-- | drivers/gpu/drm/ast/ast_main.c | 53 |
1 files changed, 47 insertions, 6 deletions
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c index 01ea4b6d4bf3..1124fb40758e 100644 --- a/drivers/gpu/drm/ast/ast_main.c +++ b/drivers/gpu/drm/ast/ast_main.c @@ -136,6 +136,31 @@ static int ast_detect_chip(struct drm_device *dev) break; } + ast->tx_chip_type = AST_TX_NONE; + jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff); + if (jreg & 0x80) + ast->tx_chip_type = AST_TX_SIL164; + if ((ast->chip == AST2300) || (ast->chip == AST2400)) { + jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff); + switch (jreg) { + case 0x04: + ast->tx_chip_type = AST_TX_SIL164; + break; + case 0x08: + ast->dp501_fw_addr = kzalloc(32*1024, GFP_KERNEL); + if (ast->dp501_fw_addr) { + /* backup firmware */ + if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) { + kfree(ast->dp501_fw_addr); + ast->dp501_fw_addr = NULL; + } + } + /* fallthrough */ + case 0x0c: + ast->tx_chip_type = AST_TX_DP501; + } + } + return 0; } @@ -289,17 +314,32 @@ static u32 ast_get_vram_info(struct drm_device *dev) { struct ast_private *ast = dev->dev_private; u8 jreg; - + u32 vram_size; ast_open_key(ast); + vram_size = AST_VIDMEM_DEFAULT_SIZE; jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff); switch (jreg & 3) { - case 0: return AST_VIDMEM_SIZE_8M; - case 1: return AST_VIDMEM_SIZE_16M; - case 2: return AST_VIDMEM_SIZE_32M; - case 3: return AST_VIDMEM_SIZE_64M; + case 0: vram_size = AST_VIDMEM_SIZE_8M; break; + case 1: vram_size = AST_VIDMEM_SIZE_16M; break; + case 2: vram_size = AST_VIDMEM_SIZE_32M; break; + case 3: vram_size = AST_VIDMEM_SIZE_64M; break; } - return AST_VIDMEM_DEFAULT_SIZE; + + jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x99, 0xff); + switch (jreg & 0x03) { + case 1: + vram_size -= 0x100000; + break; + case 2: + vram_size -= 0x200000; + break; + case 3: + vram_size -= 0x400000; + break; + } + + return vram_size; } int ast_driver_load(struct drm_device *dev, unsigned long flags) @@ -376,6 +416,7 @@ int ast_driver_unload(struct drm_device *dev) { struct ast_private *ast = dev->dev_private; + kfree(ast->dp501_fw_addr); ast_mode_fini(dev); ast_fbdev_fini(dev); drm_mode_config_cleanup(dev); |