diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-04-08 10:35:30 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2009-04-08 10:35:30 +0200 |
commit | 5ea472a77f8e4811ceee3f44a9deda6ad6e8b789 (patch) | |
tree | a9ec5019e2b666a19874fc344ffb0dd5da6bce94 /drivers/video/tdfxfb.c | |
parent | 6c009ecef8cca28c7c09eb16d0802e37915a76e1 (diff) | |
parent | 577c9c456f0e1371cbade38eaf91ae8e8a308555 (diff) |
Merge commit 'v2.6.30-rc1' into perfcounters/core
Conflicts:
arch/powerpc/include/asm/systbl.h
arch/powerpc/include/asm/unistd.h
include/linux/init_task.h
Merge reason: the conflicts are non-trivial: PowerPC placement
of sys_perf_counter_open has to be mixed with the
new preadv/pwrite syscalls.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/video/tdfxfb.c')
-rw-r--r-- | drivers/video/tdfxfb.c | 267 |
1 files changed, 262 insertions, 5 deletions
diff --git a/drivers/video/tdfxfb.c b/drivers/video/tdfxfb.c index ee64771fbe3..89f231dc443 100644 --- a/drivers/video/tdfxfb.c +++ b/drivers/video/tdfxfb.c @@ -10,6 +10,12 @@ * Created : Thu Sep 23 18:17:43 1999, hmallat * Last modified: Tue Nov 2 21:19:47 1999, hmallat * + * I2C part copied from the i2c-voodoo3.c driver by: + * Frodo Looijaard <frodol@dds.nl>, + * Philip Edelbrock <phil@netroedge.com>, + * Ralph Metzler <rjkm@thp.uni-koeln.de>, and + * Mark D. Studebaker <mdsxyz123@yahoo.com> + * * Lots of the information here comes from the Daryll Strauss' Banshee * patches to the XF86 server, and the rest comes from the 3dfx * Banshee specification. I'm very much indebted to Daryll for his @@ -481,6 +487,12 @@ static int tdfxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) return -EINVAL; } + if (info->monspecs.hfmax && info->monspecs.vfmax && + info->monspecs.dclkmax && fb_validate_mode(var, info) < 0) { + DPRINTK("mode outside monitor's specs\n"); + return -EINVAL; + } + var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */ lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3); @@ -1167,6 +1179,207 @@ static struct fb_ops tdfxfb_ops = { #endif }; +#ifdef CONFIG_FB_3DFX_I2C +/* The voo GPIO registers don't have individual masks for each bit + so we always have to read before writing. */ + +static void tdfxfb_i2c_setscl(void *data, int val) +{ + struct tdfxfb_i2c_chan *chan = data; + struct tdfx_par *par = chan->par; + unsigned int r; + + r = tdfx_inl(par, VIDSERPARPORT); + if (val) + r |= I2C_SCL_OUT; + else + r &= ~I2C_SCL_OUT; + tdfx_outl(par, VIDSERPARPORT, r); + tdfx_inl(par, VIDSERPARPORT); /* flush posted write */ +} + +static void tdfxfb_i2c_setsda(void *data, int val) +{ + struct tdfxfb_i2c_chan *chan = data; + struct tdfx_par *par = chan->par; + unsigned int r; + + r = tdfx_inl(par, VIDSERPARPORT); + if (val) + r |= I2C_SDA_OUT; + else + r &= ~I2C_SDA_OUT; + tdfx_outl(par, VIDSERPARPORT, r); + tdfx_inl(par, VIDSERPARPORT); /* flush posted write */ +} + +/* The GPIO pins are open drain, so the pins always remain outputs. + We rely on the i2c-algo-bit routines to set the pins high before + reading the input from other chips. */ + +static int tdfxfb_i2c_getscl(void *data) +{ + struct tdfxfb_i2c_chan *chan = data; + struct tdfx_par *par = chan->par; + + return (0 != (tdfx_inl(par, VIDSERPARPORT) & I2C_SCL_IN)); +} + +static int tdfxfb_i2c_getsda(void *data) +{ + struct tdfxfb_i2c_chan *chan = data; + struct tdfx_par *par = chan->par; + + return (0 != (tdfx_inl(par, VIDSERPARPORT) & I2C_SDA_IN)); +} + +static void tdfxfb_ddc_setscl(void *data, int val) +{ + struct tdfxfb_i2c_chan *chan = data; + struct tdfx_par *par = chan->par; + unsigned int r; + + r = tdfx_inl(par, VIDSERPARPORT); + if (val) + r |= DDC_SCL_OUT; + else + r &= ~DDC_SCL_OUT; + tdfx_outl(par, VIDSERPARPORT, r); + tdfx_inl(par, VIDSERPARPORT); /* flush posted write */ +} + +static void tdfxfb_ddc_setsda(void *data, int val) +{ + struct tdfxfb_i2c_chan *chan = data; + struct tdfx_par *par = chan->par; + unsigned int r; + + r = tdfx_inl(par, VIDSERPARPORT); + if (val) + r |= DDC_SDA_OUT; + else + r &= ~DDC_SDA_OUT; + tdfx_outl(par, VIDSERPARPORT, r); + tdfx_inl(par, VIDSERPARPORT); /* flush posted write */ +} + +static int tdfxfb_ddc_getscl(void *data) +{ + struct tdfxfb_i2c_chan *chan = data; + struct tdfx_par *par = chan->par; + + return (0 != (tdfx_inl(par, VIDSERPARPORT) & DDC_SCL_IN)); +} + +static int tdfxfb_ddc_getsda(void *data) +{ + struct tdfxfb_i2c_chan *chan = data; + struct tdfx_par *par = chan->par; + + return (0 != (tdfx_inl(par, VIDSERPARPORT) & DDC_SDA_IN)); +} + +static int __devinit tdfxfb_setup_ddc_bus(struct tdfxfb_i2c_chan *chan, + const char *name, struct device *dev) +{ + int rc; + + strlcpy(chan->adapter.name, name, sizeof(chan->adapter.name)); + chan->adapter.owner = THIS_MODULE; + chan->adapter.class = I2C_CLASS_DDC; + chan->adapter.algo_data = &chan->algo; + chan->adapter.dev.parent = dev; + chan->algo.setsda = tdfxfb_ddc_setsda; + chan->algo.setscl = tdfxfb_ddc_setscl; + chan->algo.getsda = tdfxfb_ddc_getsda; + chan->algo.getscl = tdfxfb_ddc_getscl; + chan->algo.udelay = 10; + chan->algo.timeout = msecs_to_jiffies(500); + chan->algo.data = chan; + + i2c_set_adapdata(&chan->adapter, chan); + + rc = i2c_bit_add_bus(&chan->adapter); + if (rc == 0) + DPRINTK("I2C bus %s registered.\n", name); + else + chan->par = NULL; + + return rc; +} + +static int __devinit tdfxfb_setup_i2c_bus(struct tdfxfb_i2c_chan *chan, + const char *name, struct device *dev) +{ + int rc; + + strlcpy(chan->adapter.name, name, sizeof(chan->adapter.name)); + chan->adapter.owner = THIS_MODULE; + chan->adapter.class = I2C_CLASS_TV_ANALOG; + chan->adapter.algo_data = &chan->algo; + chan->adapter.dev.parent = dev; + chan->algo.setsda = tdfxfb_i2c_setsda; + chan->algo.setscl = tdfxfb_i2c_setscl; + chan->algo.getsda = tdfxfb_i2c_getsda; + chan->algo.getscl = tdfxfb_i2c_getscl; + chan->algo.udelay = 10; + chan->algo.timeout = msecs_to_jiffies(500); + chan->algo.data = chan; + + i2c_set_adapdata(&chan->adapter, chan); + + rc = i2c_bit_add_bus(&chan->adapter); + if (rc == 0) + DPRINTK("I2C bus %s registered.\n", name); + else + chan->par = NULL; + + return rc; +} + +static void __devinit tdfxfb_create_i2c_busses(struct fb_info *info) +{ + struct tdfx_par *par = info->par; + + tdfx_outl(par, VIDINFORMAT, 0x8160); + tdfx_outl(par, VIDSERPARPORT, 0xcffc0020); + + par->chan[0].par = par; + par->chan[1].par = par; + + tdfxfb_setup_ddc_bus(&par->chan[0], "Voodoo3-DDC", info->dev); + tdfxfb_setup_i2c_bus(&par->chan[1], "Voodoo3-I2C", info->dev); +} + +static void tdfxfb_delete_i2c_busses(struct tdfx_par *par) +{ + if (par->chan[0].par) + i2c_del_adapter(&par->chan[0].adapter); + par->chan[0].par = NULL; + + if (par->chan[1].par) + i2c_del_adapter(&par->chan[1].adapter); + par->chan[1].par = NULL; +} + +static int tdfxfb_probe_i2c_connector(struct tdfx_par *par, + struct fb_monspecs *specs) +{ + u8 *edid = NULL; + + DPRINTK("Probe DDC Bus\n"); + if (par->chan[0].par) + edid = fb_ddc_read(&par->chan[0].adapter); + + if (edid) { + fb_edid_to_monspecs(edid, specs); + kfree(edid); + return 0; + } + return 1; +} +#endif /* CONFIG_FB_3DFX_I2C */ + /** * tdfxfb_probe - Device Initializiation * @@ -1182,6 +1395,8 @@ static int __devinit tdfxfb_probe(struct pci_dev *pdev, struct tdfx_par *default_par; struct fb_info *info; int err, lpitch; + struct fb_monspecs *specs; + bool found; err = pci_enable_device(pdev); if (err) { @@ -1284,13 +1499,49 @@ static int __devinit tdfxfb_probe(struct pci_dev *pdev, if (hwcursor) info->fix.smem_len = (info->fix.smem_len - 1024) & (PAGE_MASK << 1); - - if (!mode_option) + specs = &info->monspecs; + found = false; + info->var.bits_per_pixel = 8; +#ifdef CONFIG_FB_3DFX_I2C + tdfxfb_create_i2c_busses(info); + err = tdfxfb_probe_i2c_connector(default_par, specs); + + if (!err) { + if (specs->modedb == NULL) + DPRINTK("Unable to get Mode Database\n"); + else { + const struct fb_videomode *m; + + fb_videomode_to_modelist(specs->modedb, + specs->modedb_len, + &info->modelist); + m = fb_find_best_display(specs, &info->modelist); + if (m) { + fb_videomode_to_var(&info->var, m); + /* fill all other info->var's fields */ + if (tdfxfb_check_var(&info->var, info) < 0) + info->var = tdfx_var; + else + found = true; + } + } + } +#endif + if (!mode_option && !found) mode_option = "640x480@60"; - err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8); - if (!err || err == 4) - info->var = tdfx_var; + if (mode_option) { + err = fb_find_mode(&info->var, info, mode_option, + specs->modedb, specs->modedb_len, + NULL, info->var.bits_per_pixel); + if (!err || err == 4) + info->var = tdfx_var; + } + + if (found) { + fb_destroy_modedb(specs->modedb); + specs->modedb = NULL; + } /* maximize virtual vertical length */ lpitch = info->var.xres_virtual * ((info->var.bits_per_pixel + 7) >> 3); @@ -1315,6 +1566,9 @@ static int __devinit tdfxfb_probe(struct pci_dev *pdev, return 0; out_err_iobase: +#ifdef CONFIG_FB_3DFX_I2C + tdfxfb_delete_i2c_busses(default_par); +#endif if (default_par->mtrr_handle >= 0) mtrr_del(default_par->mtrr_handle, info->fix.smem_start, info->fix.smem_len); @@ -1379,6 +1633,9 @@ static void __devexit tdfxfb_remove(struct pci_dev *pdev) struct tdfx_par *par = info->par; unregister_framebuffer(info); +#ifdef CONFIG_FB_3DFX_I2C + tdfxfb_delete_i2c_busses(par); +#endif if (par->mtrr_handle >= 0) mtrr_del(par->mtrr_handle, info->fix.smem_start, info->fix.smem_len); |