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drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issues

Browse source 
- moves out of nouveau_bios.c and demagics the logical state definitions
- simplifies chipset-specific driver interface
- makes most of gpio irq handling common, will use for nv4x hpd later
- api extended to allow both direct gpio access, and access using the
  logical function states
- api extended to allow for future use of gpio extender chips
- pre-nv50 was handled very badly, the main issue being that all GPIOs
  were being treated as output-only.
- fixes nvd0 so gpio changes actually stick, magic reg needs bashing

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-11-21 16:41:48 +10:00
parent 675aac033e
commit a0b2563551
16 changed files with 655 additions and 648 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/gpu/drm/nouveau/Makefile
View file

@ -11,7 +11,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
nouveau_display.o nouveau_connector.o nouveau_fbcon.o \
nouveau_hdmi.o nouveau_dp.o nouveau_ramht.o \
nouveau_pm.o nouveau_volt.o nouveau_perf.o nouveau_temp.o \
nouveau_mm.o nouveau_vm.o nouveau_mxm.o \
nouveau_mm.o nouveau_vm.o nouveau_mxm.o nouveau_gpio.o \
nv04_timer.o \
nv04_mc.o nv40_mc.o nv50_mc.o \
nv04_fb.o nv10_fb.o nv30_fb.o nv40_fb.o nv50_fb.o nvc0_fb.o \

206
drivers/gpu/drm/nouveau/nouveau_bios.c
View file

@ -27,6 +27,7 @@
#include "nouveau_drv.h"
#include "nouveau_hw.h"
#include "nouveau_encoder.h"
#include "nouveau_gpio.h"
#include <linux/io-mapping.h>
@ -3124,49 +3125,6 @@ init_8d(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
return 1;
}
static void
init_gpio_unknv50(struct nvbios *bios, struct dcb_gpio_entry *gpio)
{
const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c };
u32 r, s, v;
/* Not a clue, needs de-magicing */
r = nv50_gpio_ctl[gpio->line >> 4];
s = (gpio->line & 0x0f);
v = bios_rd32(bios, r) & ~(0x00010001 << s);
switch ((gpio->entry & 0x06000000) >> 25) {
case 1:
v |= (0x00000001 << s);
break;
case 2:
v |= (0x00010000 << s);
break;
default:
break;
}
bios_wr32(bios, r, v);
}
static void
init_gpio_unknvd0(struct nvbios *bios, struct dcb_gpio_entry *gpio)
{
u32 v, i;
v = bios_rd32(bios, 0x00d610 + (gpio->line * 4));
v &= 0xffffff00;
v |= (gpio->entry & 0x00ff0000) >> 16;
bios_wr32(bios, 0x00d610 + (gpio->line * 4), v);
i = (gpio->entry & 0x1f000000) >> 24;
if (i) {
v = bios_rd32(bios, 0x00d640 + ((i - 1) * 4));
v &= 0xffffff00;
v |= gpio->line;
bios_wr32(bios, 0x00d640 + ((i - 1) * 4), v);
}
}
static int
init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
{
@ -3179,35 +3137,8 @@ init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
* each GPIO according to various values listed in each entry
*/
struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
int i;
if (dev_priv->card_type < NV_50) {
NV_ERROR(bios->dev, "INIT_GPIO on unsupported chipset\n");
return 1;
}
if (!iexec->execute)
return 1;
for (i = 0; i < bios->dcb.gpio.entries; i++) {
struct dcb_gpio_entry *gpio = &bios->dcb.gpio.entry[i];
BIOSLOG(bios, "0x%04X: Entry: 0x%08X\n", offset, gpio->entry);
BIOSLOG(bios, "0x%04X: set gpio 0x%02x, state %d\n",
offset, gpio->tag, gpio->state_default);
if (!bios->execute)
continue;
pgpio->set(bios->dev, gpio->tag, gpio->state_default);
if (dev_priv->card_type < NV_D0)
init_gpio_unknv50(bios, gpio);
else
init_gpio_unknvd0(bios, gpio);
}
if (iexec->execute && bios->execute)
nouveau_gpio_reset(bios->dev);
return 1;
}
@ -5643,132 +5574,6 @@ static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len)
return 0;
}
static struct dcb_gpio_entry *
new_gpio_entry(struct nvbios *bios)
{
struct drm_device *dev = bios->dev;
struct dcb_gpio_table *gpio = &bios->dcb.gpio;
if (gpio->entries >= DCB_MAX_NUM_GPIO_ENTRIES) {
NV_ERROR(dev, "exceeded maximum number of gpio entries!!\n");
return NULL;
}
return &gpio->entry[gpio->entries++];
}
struct dcb_gpio_entry *
nouveau_bios_gpio_entry(struct drm_device *dev, enum dcb_gpio_tag tag)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nvbios *bios = &dev_priv->vbios;
int i;
for (i = 0; i < bios->dcb.gpio.entries; i++) {
if (bios->dcb.gpio.entry[i].tag != tag)
continue;
return &bios->dcb.gpio.entry[i];
}
return NULL;
}
static void
parse_dcb_gpio_table(struct nvbios *bios)
{
struct drm_device *dev = bios->dev;
struct dcb_gpio_entry *e;
u8 headerlen, entries, recordlen;
u8 *dcb, *gpio = NULL, *entry;
int i;
dcb = ROMPTR(dev, bios->data[0x36]);
if (dcb[0] >= 0x30) {
gpio = ROMPTR(dev, dcb[10]);
if (!gpio)
goto no_table;
headerlen = gpio[1];
entries = gpio[2];
recordlen = gpio[3];
} else
if (dcb[0] >= 0x22 && dcb[-1] >= 0x13) {
gpio = ROMPTR(dev, dcb[-15]);
if (!gpio)
goto no_table;
headerlen = 3;
entries = gpio[2];
recordlen = gpio[1];
} else
if (dcb[0] >= 0x22) {
/* No GPIO table present, parse the TVDAC GPIO data. */
uint8_t *tvdac_gpio = &dcb[-5];
if (tvdac_gpio[0] & 1) {
e = new_gpio_entry(bios);
e->tag = DCB_GPIO_TVDAC0;
e->line = tvdac_gpio[1] >> 4;
e->state[0] = !!(tvdac_gpio[0] & 2);
e->state[1] = !e->state[0];
}
goto no_table;
} else {
NV_DEBUG(dev, "no/unknown gpio table on DCB 0x%02x\n", dcb[0]);
goto no_table;
}
entry = gpio + headerlen;
for (i = 0; i < entries; i++, entry += recordlen) {
e = new_gpio_entry(bios);
if (!e)
break;
if (gpio[0] < 0x40) {
e->entry = ROM16(entry[0]);
e->tag = (e->entry & 0x07e0) >> 5;
if (e->tag == 0x3f) {
bios->dcb.gpio.entries--;
continue;
}
e->line = (e->entry & 0x001f);
e->state[0] = ((e->entry & 0xf800) >> 11) != 4;
e->state[1] = !e->state[0];
} else {
e->entry = ROM32(entry[0]);
e->tag = (e->entry & 0x0000ff00) >> 8;
if (e->tag == 0xff) {
bios->dcb.gpio.entries--;
continue;
}
e->line = (e->entry & 0x0000001f) >> 0;
if (gpio[0] == 0x40) {
e->state_default = (e->entry & 0x01000000) >> 24;
e->state[0] = (e->entry & 0x18000000) >> 27;
e->state[1] = (e->entry & 0x60000000) >> 29;
} else {
e->state_default = (e->entry & 0x00000080) >> 7;
e->state[0] = (entry[4] >> 4) & 3;
e->state[1] = (entry[4] >> 6) & 3;
}
}
}
no_table:
/* Apple iMac G4 NV18 */
if (nv_match_device(dev, 0x0189, 0x10de, 0x0010)) {
e = new_gpio_entry(bios);
if (e) {
e->tag = DCB_GPIO_TVDAC0;
e->line = 4;
}
}
}
void *
dcb_table(struct drm_device *dev)
{
@ -6366,9 +6171,6 @@ parse_dcb_table(struct drm_device *dev, struct nvbios *bios)
NV_TRACE(dev, "DCB version %d.%d\n", dcbt[0] >> 4, dcbt[0] & 0xf);
dcb->version = dcbt[0];
if (dcb->version >= 0x30)
dcb->gpio_table_ptr = ROM16(dcbt[10]);
dcb_outp_foreach(dev, NULL, parse_dcb_entry);
/*
@ -6393,8 +6195,6 @@ parse_dcb_table(struct drm_device *dev, struct nvbios *bios)
}
}
dcb_fake_connectors(bios);
parse_dcb_gpio_table(bios);
return 0;
}

17
drivers/gpu/drm/nouveau/nouveau_bios.h
View file

@ -61,19 +61,6 @@ enum dcb_gpio_tag {
DCB_GPIO_UNUSED = 0xff
};
struct dcb_gpio_entry {
enum dcb_gpio_tag tag;
int line;
uint32_t entry;
uint8_t state_default;
uint8_t state[2];
};
struct dcb_gpio_table {
int entries;
struct dcb_gpio_entry entry[DCB_MAX_NUM_GPIO_ENTRIES];
};
enum dcb_connector_type {
DCB_CONNECTOR_VGA = 0x00,
DCB_CONNECTOR_TV_0 = 0x10,
@ -142,12 +129,8 @@ struct dcb_entry {
struct dcb_table {
uint8_t version;
int entries;
struct dcb_entry entry[DCB_MAX_NUM_ENTRIES];
uint16_t gpio_table_ptr;
struct dcb_gpio_table gpio;
};
enum nouveau_or {

24
drivers/gpu/drm/nouveau/nouveau_connector.c
View file

@ -35,6 +35,7 @@
#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
#include "nouveau_connector.h"
#include "nouveau_gpio.h"
#include "nouveau_hw.h"
static void nouveau_connector_hotplug(void *, int);
@ -83,7 +84,6 @@ nouveau_connector_destroy(struct drm_connector *connector)
{
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct drm_nouveau_private *dev_priv;
struct nouveau_gpio_engine *pgpio;
struct drm_device *dev;
if (!nv_connector)
@ -93,10 +93,9 @@ nouveau_connector_destroy(struct drm_connector *connector)
dev_priv = dev->dev_private;
NV_DEBUG_KMS(dev, "\n");
pgpio = &dev_priv->engine.gpio;
if (pgpio->irq_unregister) {
pgpio->irq_unregister(dev, nv_connector->hpd,
nouveau_connector_hotplug, connector);
if (nv_connector->hpd != DCB_GPIO_UNUSED) {
nouveau_gpio_isr_del(dev, 0, nv_connector->hpd, 0xff,
nouveau_connector_hotplug, connector);
}
kfree(nv_connector->edid);
@ -876,7 +875,6 @@ nouveau_connector_create(struct drm_device *dev, int index)
const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_display_engine *disp = &dev_priv->engine.display;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct nouveau_connector *nv_connector = NULL;
struct drm_connector *connector;
int type, ret = 0;
@ -1050,13 +1048,13 @@ nouveau_connector_create(struct drm_device *dev, int index)
break;
}
if (nv_connector->hpd != DCB_GPIO_UNUSED && pgpio->irq_register) {
pgpio->irq_register(dev, nv_connector->hpd,
nouveau_connector_hotplug, connector);
connector->polled = DRM_CONNECTOR_POLL_HPD;
} else {
connector->polled = DRM_CONNECTOR_POLL_CONNECT;
connector->polled = DRM_CONNECTOR_POLL_CONNECT;
if (nv_connector->hpd != DCB_GPIO_UNUSED) {
ret = nouveau_gpio_isr_add(dev, 0, nv_connector->hpd, 0xff,
nouveau_connector_hotplug,
connector);
if (ret == 0)
connector->polled = DRM_CONNECTOR_POLL_HPD;
}
drm_sysfs_connector_add(connector);

7
drivers/gpu/drm/nouveau/nouveau_dp.c
View file

@ -29,6 +29,7 @@
#include "nouveau_connector.h"
#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
#include "nouveau_gpio.h"
/******************************************************************************
* aux channel util functions
@ -556,8 +557,6 @@ dp_link_train_eq(struct drm_device *dev, struct dp_state *dp)
bool
nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate)
{
struct drm_nouveau_private *dev_priv = encoder->dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
struct nouveau_connector *nv_connector =
@ -587,7 +586,7 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate)
* we take during link training (DP_SET_POWER is one), we need
* to ignore them for the moment to avoid races.
*/
pgpio->irq_enable(dev, nv_connector->hpd, false);
nouveau_gpio_irq(dev, 0, nv_connector->hpd, 0xff, false);
/* enable down-spreading, if possible */
if (dp.table[1] >= 16) {
@ -636,7 +635,7 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate)
nouveau_bios_run_init_table(dev, ROM16(dp.entry[8]), dp.dcb, dp.crtc);
/* re-enable hotplug detect */
pgpio->irq_enable(dev, nv_connector->hpd, true);
nouveau_gpio_irq(dev, 0, nv_connector->hpd, 0xff, true);
return true;
}

45
drivers/gpu/drm/nouveau/nouveau_drv.h
View file

@ -408,19 +408,13 @@ struct nouveau_display_engine {
};
struct nouveau_gpio_engine {
void *priv;
int (*init)(struct drm_device *);
void (*takedown)(struct drm_device *);
int (*get)(struct drm_device *, enum dcb_gpio_tag);
int (*set)(struct drm_device *, enum dcb_gpio_tag, int state);
int (*irq_register)(struct drm_device *, enum dcb_gpio_tag,
void (*)(void *, int), void *);
void (*irq_unregister)(struct drm_device *, enum dcb_gpio_tag,
void (*)(void *, int), void *);
bool (*irq_enable)(struct drm_device *, enum dcb_gpio_tag, bool on);
spinlock_t lock;
struct list_head isr;
int (*init)(struct drm_device *);
void (*fini)(struct drm_device *);
int (*drive)(struct drm_device *, int line, int dir, int out);
int (*sense)(struct drm_device *, int line);
void (*irq_enable)(struct drm_device *, int line, bool);
};
struct nouveau_pm_voltage_level {
@ -1091,8 +1085,6 @@ extern int nouveau_run_vbios_init(struct drm_device *);
extern void nouveau_bios_run_init_table(struct drm_device *, uint16_t table,
struct dcb_entry *, int crtc);
extern void nouveau_bios_init_exec(struct drm_device *, uint16_t table);
extern struct dcb_gpio_entry *nouveau_bios_gpio_entry(struct drm_device *,
enum dcb_gpio_tag);
extern struct dcb_connector_table_entry *
nouveau_bios_connector_entry(struct drm_device *, int index);
extern u32 get_pll_register(struct drm_device *, enum pll_types);
@ -1476,23 +1468,22 @@ int nouveau_display_dumb_destroy(struct drm_file *, struct drm_device *,
uint32_t handle);
/* nv10_gpio.c */
int nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
int nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
int nv10_gpio_init(struct drm_device *dev);
void nv10_gpio_fini(struct drm_device *dev);
int nv10_gpio_drive(struct drm_device *dev, int line, int dir, int out);
int nv10_gpio_sense(struct drm_device *dev, int line);
void nv10_gpio_irq_enable(struct drm_device *, int line, bool on);
/* nv50_gpio.c */
int nv50_gpio_init(struct drm_device *dev);
void nv50_gpio_fini(struct drm_device *dev);
int nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
int nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
int nvd0_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
int nvd0_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
int nv50_gpio_irq_register(struct drm_device *, enum dcb_gpio_tag,
void (*)(void *, int), void *);
void nv50_gpio_irq_unregister(struct drm_device *, enum dcb_gpio_tag,
void (*)(void *, int), void *);
bool nv50_gpio_irq_enable(struct drm_device *, enum dcb_gpio_tag, bool on);
int nv50_gpio_drive(struct drm_device *dev, int line, int dir, int out);
int nv50_gpio_sense(struct drm_device *dev, int line);
void nv50_gpio_irq_enable(struct drm_device *, int line, bool on);
int nvd0_gpio_drive(struct drm_device *dev, int line, int dir, int out);
int nvd0_gpio_sense(struct drm_device *dev, int line);
/* nv50_calc. */
/* nv50_calc.c */
int nv50_calc_pll(struct drm_device *, struct pll_lims *, int clk,
int *N1, int *M1, int *N2, int *M2, int *P);
int nva3_calc_pll(struct drm_device *, struct pll_lims *,

400
drivers/gpu/drm/nouveau/nouveau_gpio.c Normal file
View file

@ -0,0 +1,400 @@
/*
* Copyright 2011 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs
*/
#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_i2c.h"
#include "nouveau_gpio.h"
static u8 *
dcb_gpio_table(struct drm_device *dev)
{
u8 *dcb = dcb_table(dev);
if (dcb) {
if (dcb[0] >= 0x30 && dcb[1] >= 0x0c)
return ROMPTR(dev, dcb[0x0a]);
if (dcb[0] >= 0x22 && dcb[-1] >= 0x13)
return ROMPTR(dev, dcb[-15]);
}
return NULL;
}
static u8 *
dcb_gpio_entry(struct drm_device *dev, int idx, int ent, u8 *version)
{
u8 *table = dcb_gpio_table(dev);
if (table) {
*version = table[0];
if (*version < 0x30 && ent < table[2])
return table + 3 + (ent * table[1]);
else if (ent < table[2])
return table + table[1] + (ent * table[3]);
}
return NULL;
}
int
nouveau_gpio_drive(struct drm_device *dev, int idx, int line, int dir, int out)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
return pgpio->drive ? pgpio->drive(dev, line, dir, out) : -ENODEV;
}
int
nouveau_gpio_sense(struct drm_device *dev, int idx, int line)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
return pgpio->sense ? pgpio->sense(dev, line) : -ENODEV;
}
int
nouveau_gpio_find(struct drm_device *dev, int idx, u8 func, u8 line,
struct gpio_func *gpio)
{
u8 *table, *entry, version;
int i = -1;
if (line == 0xff && func == 0xff)
return -EINVAL;
while ((entry = dcb_gpio_entry(dev, idx, ++i, &version))) {
if (version < 0x40) {
u16 data = ROM16(entry[0]);
*gpio = (struct gpio_func) {
.line = (data & 0x001f) >> 0,
.func = (data & 0x07e0) >> 5,
.log[0] = (data & 0x1800) >> 11,
.log[1] = (data & 0x6000) >> 13,
};
} else
if (version < 0x41) {
*gpio = (struct gpio_func) {
.line = entry[0] & 0x1f,
.func = entry[1],
.log[0] = (entry[3] & 0x18) >> 3,
.log[1] = (entry[3] & 0x60) >> 5,
};
} else {
*gpio = (struct gpio_func) {
.line = entry[0] & 0x3f,
.func = entry[1],
.log[0] = (entry[4] & 0x30) >> 4,
.log[1] = (entry[4] & 0xc0) >> 6,
};
}
if ((line == 0xff || line == gpio->line) &&
(func == 0xff || func == gpio->func))
return 0;
}
/* DCB 2.2, fixed TVDAC GPIO data */
if ((table = dcb_table(dev)) && table[0] >= 0x22) {
if (func == DCB_GPIO_TVDAC0) {
*gpio = (struct gpio_func) {
.func = DCB_GPIO_TVDAC0,
.line = table[-4] >> 4,
.log[0] = !!(table[-5] & 2),
.log[1] = !(table[-5] & 2),
};
return 0;
}
}
/* Apple iMac G4 NV18 */
if (nv_match_device(dev, 0x0189, 0x10de, 0x0010)) {
if (func == DCB_GPIO_TVDAC0) {
*gpio = (struct gpio_func) {
.func = DCB_GPIO_TVDAC0,
.line = 4,
.log[0] = 0,
.log[1] = 1,
};
return 0;
}
}
return -EINVAL;
}
int
nouveau_gpio_set(struct drm_device *dev, int idx, u8 tag, u8 line, int state)
{
struct gpio_func gpio;
int ret;
ret = nouveau_gpio_find(dev, idx, tag, line, &gpio);
if (ret == 0) {
int dir = !!(gpio.log[state] & 0x02);
int out = !!(gpio.log[state] & 0x01);
ret = nouveau_gpio_drive(dev, idx, gpio.line, dir, out);
}
return ret;
}
int
nouveau_gpio_get(struct drm_device *dev, int idx, u8 tag, u8 line)
{
struct gpio_func gpio;
int ret;
ret = nouveau_gpio_find(dev, idx, tag, line, &gpio);
if (ret == 0) {
ret = nouveau_gpio_sense(dev, idx, gpio.line);
if (ret >= 0)
ret = (ret == (gpio.log[1] & 1));
}
return ret;
}
int
nouveau_gpio_irq(struct drm_device *dev, int idx, u8 tag, u8 line, bool on)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct gpio_func gpio;
int ret;
ret = nouveau_gpio_find(dev, idx, tag, line, &gpio);
if (ret == 0) {
if (idx == 0 && pgpio->irq_enable)
pgpio->irq_enable(dev, gpio.line, on);
else
ret = -ENODEV;
}
return ret;
}
struct gpio_isr {
struct drm_device *dev;
struct list_head head;
struct work_struct work;
int idx;
struct gpio_func func;
void (*handler)(void *, int);
void *data;
bool inhibit;
};
static void
nouveau_gpio_isr_bh(struct work_struct *work)
{
struct gpio_isr *isr = container_of(work, struct gpio_isr, work);
struct drm_device *dev = isr->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
unsigned long flags;
int state;
state = nouveau_gpio_get(dev, isr->idx, isr->func.func, isr->func.line);
if (state >= 0)
isr->handler(isr->data, state);
spin_lock_irqsave(&pgpio->lock, flags);
isr->inhibit = false;
spin_unlock_irqrestore(&pgpio->lock, flags);
}
void
nouveau_gpio_isr(struct drm_device *dev, int idx, u32 line_mask)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct gpio_isr *isr;
if (idx != 0)
return;
spin_lock(&pgpio->lock);
list_for_each_entry(isr, &pgpio->isr, head) {
if (line_mask & (1 << isr->func.line)) {
if (isr->inhibit)
continue;
isr->inhibit = true;
schedule_work(&isr->work);
}
}
spin_unlock(&pgpio->lock);
}
int
nouveau_gpio_isr_add(struct drm_device *dev, int idx, u8 tag, u8 line,
void (*handler)(void *, int), void *data)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct gpio_isr *isr;
unsigned long flags;
int ret;
isr = kzalloc(sizeof(*isr), GFP_KERNEL);
if (!isr)
return -ENOMEM;
ret = nouveau_gpio_find(dev, idx, tag, line, &isr->func);
if (ret) {
kfree(isr);
return ret;
}
INIT_WORK(&isr->work, nouveau_gpio_isr_bh);
isr->dev = dev;
isr->handler = handler;
isr->data = data;
isr->idx = idx;
spin_lock_irqsave(&pgpio->lock, flags);
list_add(&isr->head, &pgpio->isr);
spin_unlock_irqrestore(&pgpio->lock, flags);
return 0;
}
void
nouveau_gpio_isr_del(struct drm_device *dev, int idx, u8 tag, u8 line,
void (*handler)(void *, int), void *data)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct gpio_isr *isr, *tmp;
struct gpio_func func;
unsigned long flags;
LIST_HEAD(tofree);
int ret;
ret = nouveau_gpio_find(dev, idx, tag, line, &func);
if (ret == 0) {
spin_lock_irqsave(&pgpio->lock, flags);
list_for_each_entry_safe(isr, tmp, &pgpio->isr, head) {
if (memcmp(&isr->func, &func, sizeof(func)) ||
isr->idx != idx ||
isr->handler != handler || isr->data != data)
continue;
list_move(&isr->head, &tofree);
}
spin_unlock_irqrestore(&pgpio->lock, flags);
list_for_each_entry_safe(isr, tmp, &tofree, head) {
flush_work_sync(&isr->work);
kfree(isr);
}
}
}
int
nouveau_gpio_create(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
INIT_LIST_HEAD(&pgpio->isr);
spin_lock_init(&pgpio->lock);
return nouveau_gpio_init(dev);
}
void
nouveau_gpio_destroy(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
nouveau_gpio_fini(dev);
BUG_ON(!list_empty(&pgpio->isr));
}
int
nouveau_gpio_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
int ret = 0;
if (pgpio->init)
ret = pgpio->init(dev);
return ret;
}
void
nouveau_gpio_fini(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
if (pgpio->fini)
pgpio->fini(dev);
}
void
nouveau_gpio_reset(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
u8 *entry, version;
int ent = -1;
while ((entry = dcb_gpio_entry(dev, 0, ++ent, &version))) {
u8 func = 0xff, line, defs, unk0, unk1;
if (version >= 0x41) {
defs = !!(entry[0] & 0x80);
line = entry[0] & 0x3f;
func = entry[1];
unk0 = entry[2];
unk1 = entry[3] & 0x1f;
} else
if (version >= 0x40) {
line = entry[0] & 0x1f;
func = entry[1];
defs = !!(entry[3] & 0x01);
unk0 = !!(entry[3] & 0x02);
unk1 = !!(entry[3] & 0x04);
} else {
break;
}
if (func == 0xff)
continue;
nouveau_gpio_func_set(dev, func, defs);
if (dev_priv->card_type >= NV_D0) {
nv_mask(dev, 0x00d610 + (line * 4), 0xff, unk0);
if (unk1--)
nv_mask(dev, 0x00d640 + (unk1 * 4), 0xff, line);
} else
if (dev_priv->card_type >= NV_50) {
static const u32 regs[] = { 0xe100, 0xe28c };
u32 val = (unk1 << 16) | unk0;
u32 reg = regs[line >> 4]; line &= 0x0f;
nv_mask(dev, reg, 0x00010001 << line, val << line);
}
}
}

71
drivers/gpu/drm/nouveau/nouveau_gpio.h Normal file
View file

@ -0,0 +1,71 @@
/*
* Copyright 2011 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __NOUVEAU_GPIO_H__
#define __NOUVEAU_GPIO_H__
struct gpio_func {
u8 func;
u8 line;
u8 log[2];
};
/* nouveau_gpio.c */
int nouveau_gpio_create(struct drm_device *);
void nouveau_gpio_destroy(struct drm_device *);
int nouveau_gpio_init(struct drm_device *);
void nouveau_gpio_fini(struct drm_device *);
void nouveau_gpio_reset(struct drm_device *);
int nouveau_gpio_drive(struct drm_device *, int idx, int line,
int dir, int out);
int nouveau_gpio_sense(struct drm_device *, int idx, int line);
int nouveau_gpio_find(struct drm_device *, int idx, u8 tag, u8 line,
struct gpio_func *);
int nouveau_gpio_set(struct drm_device *, int idx, u8 tag, u8 line, int state);
int nouveau_gpio_get(struct drm_device *, int idx, u8 tag, u8 line);
int nouveau_gpio_irq(struct drm_device *, int idx, u8 tag, u8 line, bool on);
void nouveau_gpio_isr(struct drm_device *, int idx, u32 mask);
int nouveau_gpio_isr_add(struct drm_device *, int idx, u8 tag, u8 line,
void (*)(void *, int state), void *data);
void nouveau_gpio_isr_del(struct drm_device *, int idx, u8 tag, u8 line,
void (*)(void *, int state), void *data);
static inline bool
nouveau_gpio_func_valid(struct drm_device *dev, u8 tag)
{
struct gpio_func func;
return (nouveau_gpio_find(dev, 0, tag, 0xff, &func)) == 0;
}
static inline int
nouveau_gpio_func_set(struct drm_device *dev, u8 tag, int state)
{
return nouveau_gpio_set(dev, 0, tag, 0xff, state);
}
static inline int
nouveau_gpio_func_get(struct drm_device *dev, u8 tag)
{
return nouveau_gpio_get(dev, 0, tag, 0xff);
}
#endif

43
drivers/gpu/drm/nouveau/nouveau_pm.c
View file

@ -26,6 +26,7 @@
#include "nouveau_drv.h"
#include "nouveau_pm.h"
#include "nouveau_gpio.h"
#ifdef CONFIG_ACPI
#include <linux/acpi.h>
@ -38,27 +39,25 @@ static int
nouveau_pwmfan_get(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct dcb_gpio_entry *gpio = NULL;
struct gpio_func gpio;
u32 divs, duty;
int ret;
if (!pm->pwm_get)
return -ENODEV;
gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_PWM_FAN);
if (gpio) {
ret = pm->pwm_get(dev, gpio->line, &divs, &duty);
ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
if (ret == 0) {
ret = pm->pwm_get(dev, gpio.line, &divs, &duty);
if (ret == 0) {
divs = max(divs, duty);
if (dev_priv->card_type <= NV_40 ||
(gpio->state[0] & 1))
if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1))
duty = divs - duty;
return (duty * 100) / divs;
}
return pgpio->get(dev, gpio->tag) * 100;
return nouveau_gpio_func_get(dev, gpio.func) * 100;
}
return -ENODEV;
@ -69,14 +68,15 @@ nouveau_pwmfan_set(struct drm_device *dev, int percent)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct dcb_gpio_entry *gpio;
struct gpio_func gpio;
u32 divs, duty;
int ret;
if (!pm->pwm_set)
return -ENODEV;
gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_PWM_FAN);
if (gpio) {
ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
if (ret == 0) {
divs = pm->pwm_divisor;
if (pm->fan.pwm_freq) {
/*XXX: PNVIO clock more than likely... */
@ -86,11 +86,10 @@ nouveau_pwmfan_set(struct drm_device *dev, int percent)
}
duty = ((divs * percent) + 99) / 100;
if (dev_priv->card_type <= NV_40 ||
(gpio->state[0] & 1))
if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1))
duty = divs - duty;
return pm->pwm_set(dev, gpio->line, divs, duty);
return pm->pwm_set(dev, gpio.line, divs, duty);
}
return -ENODEV;
@ -472,24 +471,24 @@ nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr,
struct drm_device *dev = dev_get_drvdata(d);
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct dcb_gpio_entry *gpio;
struct gpio_func gpio;
u32 cycles, cur, prev;
u64 start;
int ret;
gpio = nouveau_bios_gpio_entry(dev, DCB_GPIO_FAN_SENSE);
if (!gpio)
return -ENODEV;
ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio);
if (ret)
return ret;
/* Monitor the GPIO input 0x3b for 250ms.
* When the fan spins, it changes the value of GPIO FAN_SENSE.
* We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation.
*/
start = ptimer->read(dev);
prev = pgpio->get(dev, DCB_GPIO_FAN_SENSE);
prev = nouveau_gpio_sense(dev, 0, gpio.line);
cycles = 0;
do {
cur = pgpio->get(dev, DCB_GPIO_FAN_SENSE);
cur = nouveau_gpio_sense(dev, 0, gpio.line);
if (prev != cur) {
cycles++;
prev = cur;
@ -701,7 +700,7 @@ nouveau_hwmon_init(struct drm_device *dev)
}
/* if the card can read the fan rpm */
if (nouveau_bios_gpio_entry(dev, DCB_GPIO_FAN_SENSE)) {
if (nouveau_gpio_func_valid(dev, DCB_GPIO_FAN_SENSE)) {
ret = sysfs_create_group(&dev->pdev->dev.kobj,
&hwmon_fan_rpm_attrgroup);
if (ret)

64
drivers/gpu/drm/nouveau/nouveau_state.c
View file

@ -36,6 +36,7 @@
#include "nouveau_drm.h"
#include "nouveau_fbcon.h"
#include "nouveau_ramht.h"
#include "nouveau_gpio.h"
#include "nouveau_pm.h"
#include "nv50_display.h"
@ -83,11 +84,6 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->display.destroy = nv04_display_destroy;
engine->display.init = nv04_display_init;
engine->display.fini = nv04_display_fini;
engine->gpio.init = nouveau_stub_init;
engine->gpio.takedown = nouveau_stub_takedown;
engine->gpio.get = NULL;
engine->gpio.set = NULL;
engine->gpio.irq_enable = NULL;
engine->pm.clocks_get = nv04_pm_clocks_get;
engine->pm.clocks_pre = nv04_pm_clocks_pre;
engine->pm.clocks_set = nv04_pm_clocks_set;
@ -133,11 +129,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->display.destroy = nv04_display_destroy;
engine->display.init = nv04_display_init;
engine->display.fini = nv04_display_fini;
engine->gpio.init = nouveau_stub_init;
engine->gpio.takedown = nouveau_stub_takedown;
engine->gpio.get = nv10_gpio_get;
engine->gpio.set = nv10_gpio_set;
engine->gpio.irq_enable = NULL;
engine->gpio.drive = nv10_gpio_drive;
engine->gpio.sense = nv10_gpio_sense;
engine->pm.clocks_get = nv04_pm_clocks_get;
engine->pm.clocks_pre = nv04_pm_clocks_pre;
engine->pm.clocks_set = nv04_pm_clocks_set;
@ -183,11 +176,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->display.destroy = nv04_display_destroy;
engine->display.init = nv04_display_init;
engine->display.fini = nv04_display_fini;
engine->gpio.init = nouveau_stub_init;
engine->gpio.takedown = nouveau_stub_takedown;
engine->gpio.get = nv10_gpio_get;
engine->gpio.set = nv10_gpio_set;
engine->gpio.irq_enable = NULL;
engine->gpio.drive = nv10_gpio_drive;
engine->gpio.sense = nv10_gpio_sense;
engine->pm.clocks_get = nv04_pm_clocks_get;
engine->pm.clocks_pre = nv04_pm_clocks_pre;
engine->pm.clocks_set = nv04_pm_clocks_set;
@ -233,11 +223,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->display.destroy = nv04_display_destroy;
engine->display.init = nv04_display_init;
engine->display.fini = nv04_display_fini;
engine->gpio.init = nouveau_stub_init;
engine->gpio.takedown = nouveau_stub_takedown;
engine->gpio.get = nv10_gpio_get;
engine->gpio.set = nv10_gpio_set;
engine->gpio.irq_enable = NULL;
engine->gpio.drive = nv10_gpio_drive;
engine->gpio.sense = nv10_gpio_sense;
engine->pm.clocks_get = nv04_pm_clocks_get;
engine->pm.clocks_pre = nv04_pm_clocks_pre;
engine->pm.clocks_set = nv04_pm_clocks_set;
@ -286,11 +273,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->display.destroy = nv04_display_destroy;
engine->display.init = nv04_display_init;
engine->display.fini = nv04_display_fini;
engine->gpio.init = nouveau_stub_init;
engine->gpio.takedown = nouveau_stub_takedown;
engine->gpio.get = nv10_gpio_get;
engine->gpio.set = nv10_gpio_set;
engine->gpio.irq_enable = NULL;
engine->gpio.drive = nv10_gpio_drive;
engine->gpio.sense = nv10_gpio_sense;
engine->pm.clocks_get = nv40_pm_clocks_get;
engine->pm.clocks_pre = nv40_pm_clocks_pre;
engine->pm.clocks_set = nv40_pm_clocks_set;
@ -345,11 +329,9 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->display.init = nv50_display_init;
engine->display.fini = nv50_display_fini;
engine->gpio.init = nv50_gpio_init;
engine->gpio.takedown = nv50_gpio_fini;
engine->gpio.get = nv50_gpio_get;
engine->gpio.set = nv50_gpio_set;
engine->gpio.irq_register = nv50_gpio_irq_register;
engine->gpio.irq_unregister = nv50_gpio_irq_unregister;
engine->gpio.fini = nv50_gpio_fini;
engine->gpio.drive = nv50_gpio_drive;
engine->gpio.sense = nv50_gpio_sense;
engine->gpio.irq_enable = nv50_gpio_irq_enable;
switch (dev_priv->chipset) {
case 0x84:
@ -421,11 +403,9 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->display.init = nv50_display_init;
engine->display.fini = nv50_display_fini;
engine->gpio.init = nv50_gpio_init;
engine->gpio.takedown = nouveau_stub_takedown;
engine->gpio.get = nv50_gpio_get;
engine->gpio.set = nv50_gpio_set;
engine->gpio.irq_register = nv50_gpio_irq_register;
engine->gpio.irq_unregister = nv50_gpio_irq_unregister;
engine->gpio.fini = nv50_gpio_fini;
engine->gpio.drive = nv50_gpio_drive;
engine->gpio.sense = nv50_gpio_sense;
engine->gpio.irq_enable = nv50_gpio_irq_enable;
engine->vram.init = nvc0_vram_init;
engine->vram.takedown = nv50_vram_fini;
@ -474,11 +454,9 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->display.init = nvd0_display_init;
engine->display.fini = nvd0_display_fini;
engine->gpio.init = nv50_gpio_init;
engine->gpio.takedown = nouveau_stub_takedown;
engine->gpio.get = nvd0_gpio_get;
engine->gpio.set = nvd0_gpio_set;
engine->gpio.irq_register = nv50_gpio_irq_register;
engine->gpio.irq_unregister = nv50_gpio_irq_unregister;
engine->gpio.fini = nv50_gpio_fini;
engine->gpio.drive = nvd0_gpio_drive;
engine->gpio.sense = nvd0_gpio_sense;
engine->gpio.irq_enable = nv50_gpio_irq_enable;
engine->vram.init = nvc0_vram_init;
engine->vram.takedown = nv50_vram_fini;
@ -630,7 +608,7 @@ nouveau_card_init(struct drm_device *dev)
goto out_gart;
/* PGPIO */
ret = engine->gpio.init(dev);
ret = nouveau_gpio_create(dev);
if (ret)
goto out_mc;
@ -798,7 +776,7 @@ nouveau_card_init(struct drm_device *dev)
out_timer:
engine->timer.takedown(dev);
out_gpio:
engine->gpio.takedown(dev);
nouveau_gpio_destroy(dev);
out_mc:
engine->mc.takedown(dev);
out_gart:
@ -851,7 +829,7 @@ static void nouveau_card_takedown(struct drm_device *dev)
}
engine->fb.takedown(dev);
engine->timer.takedown(dev);
engine->gpio.takedown(dev);
nouveau_gpio_destroy(dev);
engine->mc.takedown(dev);
engine->display.late_takedown(dev);

9
drivers/gpu/drm/nouveau/nouveau_volt.c
View file

@ -26,6 +26,7 @@
#include "nouveau_drv.h"
#include "nouveau_pm.h"
#include "nouveau_gpio.h"
static const enum dcb_gpio_tag vidtag[] = { 0x04, 0x05, 0x06, 0x1a, 0x73 };
static int nr_vidtag = sizeof(vidtag) / sizeof(vidtag[0]);
@ -34,7 +35,6 @@ int
nouveau_voltage_gpio_get(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
struct nouveau_pm_voltage *volt = &dev_priv->engine.pm.voltage;
u8 vid = 0;
int i;
@ -43,7 +43,7 @@ nouveau_voltage_gpio_get(struct drm_device *dev)
if (!(volt->vid_mask & (1 << i)))
continue;
vid |= gpio->get(dev, vidtag[i]) << i;
vid |= nouveau_gpio_func_get(dev, vidtag[i]) << i;
}
return nouveau_volt_lvl_lookup(dev, vid);
@ -53,7 +53,6 @@ int
nouveau_voltage_gpio_set(struct drm_device *dev, int voltage)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
struct nouveau_pm_voltage *volt = &dev_priv->engine.pm.voltage;
int vid, i;
@ -65,7 +64,7 @@ nouveau_voltage_gpio_set(struct drm_device *dev, int voltage)
if (!(volt->vid_mask & (1 << i)))
continue;
gpio->set(dev, vidtag[i], !!(vid & (1 << i)));
nouveau_gpio_func_set(dev, vidtag[i], !!(vid & (1 << i)));
}
return 0;
@ -194,7 +193,7 @@ nouveau_volt_init(struct drm_device *dev)
return;
}
if (!nouveau_bios_gpio_entry(dev, vidtag[i])) {
if (!nouveau_gpio_func_valid(dev, vidtag[i])) {
NV_DEBUG(dev, "vid bit %d has no gpio tag\n", i);
return;
}

14
drivers/gpu/drm/nouveau/nv04_dac.c
View file

@ -32,6 +32,7 @@
#include "nouveau_connector.h"
#include "nouveau_crtc.h"
#include "nouveau_hw.h"
#include "nouveau_gpio.h"
#include "nvreg.h"
int nv04_dac_output_offset(struct drm_encoder *encoder)
@ -220,7 +221,6 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
struct dcb_entry *dcb = nouveau_encoder(encoder)->dcb;
uint32_t sample, testval, regoffset = nv04_dac_output_offset(encoder);
uint32_t saved_powerctrl_2 = 0, saved_powerctrl_4 = 0, saved_routput,
@ -252,11 +252,11 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder)
nvWriteMC(dev, NV_PBUS_POWERCTRL_4, saved_powerctrl_4 & 0xffffffcf);
}
saved_gpio1 = gpio->get(dev, DCB_GPIO_TVDAC1);
saved_gpio0 = gpio->get(dev, DCB_GPIO_TVDAC0);
saved_gpio1 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC1);
saved_gpio0 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC0);
gpio->set(dev, DCB_GPIO_TVDAC1, dcb->type == OUTPUT_TV);
gpio->set(dev, DCB_GPIO_TVDAC0, dcb->type == OUTPUT_TV);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, dcb->type == OUTPUT_TV);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, dcb->type == OUTPUT_TV);
msleep(4);
@ -306,8 +306,8 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder)
nvWriteMC(dev, NV_PBUS_POWERCTRL_4, saved_powerctrl_4);
nvWriteMC(dev, NV_PBUS_POWERCTRL_2, saved_powerctrl_2);
gpio->set(dev, DCB_GPIO_TVDAC1, saved_gpio1);
gpio->set(dev, DCB_GPIO_TVDAC0, saved_gpio0);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, saved_gpio1);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, saved_gpio0);
return sample;
}

92
drivers/gpu/drm/nouveau/nv10_gpio.c
View file

@ -28,65 +28,55 @@
#include "nouveau_drv.h"
#include "nouveau_hw.h"
static bool
get_gpio_location(struct dcb_gpio_entry *ent, uint32_t *reg, uint32_t *shift,
uint32_t *mask)
int
nv10_gpio_sense(struct drm_device *dev, int line)
{
if (ent->line < 2) {
*reg = NV_PCRTC_GPIO;
*shift = ent->line * 16;
*mask = 0x11;
} else if (ent->line < 10) {
*reg = NV_PCRTC_GPIO_EXT;
*shift = (ent->line - 2) * 4;
*mask = 0x3;
} else if (ent->line < 14) {
*reg = NV_PCRTC_850;
*shift = (ent->line - 10) * 4;
*mask = 0x3;
} else {
return false;
if (line < 2) {
line = line * 16;
line = NVReadCRTC(dev, 0, NV_PCRTC_GPIO) >> line;
return !!(line & 0x0100);
} else
if (line < 10) {
line = (line - 2) * 4;
line = NVReadCRTC(dev, 0, NV_PCRTC_GPIO_EXT) >> line;
return !!(line & 0x04);
} else
if (line < 14) {
line = (line - 10) * 4;
line = NVReadCRTC(dev, 0, NV_PCRTC_850) >> line;
return !!(line & 0x04);
}
return true;
return -EINVAL;
}
int
nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag)
nv10_gpio_drive(struct drm_device *dev, int line, int dir, int out)
{
struct dcb_gpio_entry *ent = nouveau_bios_gpio_entry(dev, tag);
uint32_t reg, shift, mask, value;
u32 reg, mask, data;
if (!ent)
return -ENODEV;
if (!get_gpio_location(ent, &reg, &shift, &mask))
return -ENODEV;
value = NVReadCRTC(dev, 0, reg) >> shift;
return (value & 1) == ent->state[1];
}
int
nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state)
{
struct dcb_gpio_entry *ent = nouveau_bios_gpio_entry(dev, tag);
uint32_t reg, shift, mask, value;
if (!ent)
return -ENODEV;
if (!get_gpio_location(ent, &reg, &shift, &mask))
return -ENODEV;
value = ent->state[state & 1] << shift;
mask = ~(mask << shift);
NVWriteCRTC(dev, 0, reg, value | (NVReadCRTC(dev, 0, reg) & mask));
if (line < 2) {
line = line * 16;
reg = NV_PCRTC_GPIO;
mask = 0x00000011;
data = (dir << 4) | out;
} else
if (line < 10) {
line = (line - 2) * 4;
reg = NV_PCRTC_GPIO_EXT;
mask = 0x00000003 << ((line - 2) * 4);
data = (dir << 1) | out;
} else
if (line < 14) {
line = (line - 10) * 4;
reg = NV_PCRTC_850;
mask = 0x00000003;
data = (dir << 1) | out;
} else {
return -EINVAL;
}
mask = NVReadCRTC(dev, 0, reg) & ~(mask << line);
NVWriteCRTC(dev, 0, reg, mask | (data << line));
return 0;
}

20
drivers/gpu/drm/nouveau/nv17_tv.c
View file

@ -30,6 +30,7 @@
#include "nouveau_encoder.h"
#include "nouveau_connector.h"
#include "nouveau_crtc.h"
#include "nouveau_gpio.h"
#include "nouveau_hw.h"
#include "nv17_tv.h"
@ -37,7 +38,6 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
uint32_t testval, regoffset = nv04_dac_output_offset(encoder);
uint32_t gpio0, gpio1, fp_htotal, fp_hsync_start, fp_hsync_end,
fp_control, test_ctrl, dacclk, ctv_14, ctv_1c, ctv_6c;
@ -53,8 +53,8 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
head = (dacclk & 0x100) >> 8;
/* Save the previous state. */
gpio1 = gpio->get(dev, DCB_GPIO_TVDAC1);
gpio0 = gpio->get(dev, DCB_GPIO_TVDAC0);
gpio1 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC1);
gpio0 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC0);
fp_htotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL);
fp_hsync_start = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START);
fp_hsync_end = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END);
@ -65,8 +65,8 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
ctv_6c = NVReadRAMDAC(dev, head, 0x680c6c);
/* Prepare the DAC for load detection. */
gpio->set(dev, DCB_GPIO_TVDAC1, true);
gpio->set(dev, DCB_GPIO_TVDAC0, true);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, true);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, true);
NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, 1343);
NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, 1047);
@ -111,8 +111,8 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END, fp_hsync_end);
NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, fp_hsync_start);
NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, fp_htotal);
gpio->set(dev, DCB_GPIO_TVDAC1, gpio1);
gpio->set(dev, DCB_GPIO_TVDAC0, gpio0);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, gpio1);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, gpio0);
return sample;
}
@ -357,8 +357,6 @@ static bool nv17_tv_mode_fixup(struct drm_encoder *encoder,
static void nv17_tv_dpms(struct drm_encoder *encoder, int mode)
{
struct drm_device *dev = encoder->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
struct nv17_tv_state *regs = &to_tv_enc(encoder)->state;
struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
@ -383,8 +381,8 @@ static void nv17_tv_dpms(struct drm_encoder *encoder, int mode)
nv_load_ptv(dev, regs, 200);
gpio->set(dev, DCB_GPIO_TVDAC1, mode == DRM_MODE_DPMS_ON);
gpio->set(dev, DCB_GPIO_TVDAC0, mode == DRM_MODE_DPMS_ON);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, mode == DRM_MODE_DPMS_ON);
nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, mode == DRM_MODE_DPMS_ON);
nv04_dac_update_dacclk(encoder, mode == DRM_MODE_DPMS_ON);
}

9
drivers/gpu/drm/nouveau/nv50_display.c
View file

@ -32,6 +32,7 @@
#include "nouveau_fb.h"
#include "nouveau_fbcon.h"
#include "nouveau_ramht.h"
#include "nouveau_gpio.h"
#include "drm_crtc_helper.h"
static void nv50_display_isr(struct drm_device *);
@ -140,8 +141,6 @@ nv50_display_sync(struct drm_device *dev)
int
nv50_display_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct drm_connector *connector;
struct nouveau_channel *evo;
int ret, i;
@ -240,11 +239,7 @@ nv50_display_init(struct drm_device *dev)
/* enable hotplug interrupts */
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
struct nouveau_connector *conn = nouveau_connector(connector);
if (conn->hpd == DCB_GPIO_UNUSED)
continue;
pgpio->irq_enable(dev, conn->hpd, true);
nouveau_gpio_irq(dev, 0, conn->hpd, 0xff, true);
}
ret = nv50_evo_init(dev);

280
drivers/gpu/drm/nouveau/nv50_gpio.c
View file

@ -25,229 +25,95 @@
#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_hw.h"
#include "nouveau_gpio.h"
#include "nv50_display.h"
static void nv50_gpio_isr(struct drm_device *dev);
static void nv50_gpio_isr_bh(struct work_struct *work);
struct nv50_gpio_priv {
struct list_head handlers;
spinlock_t lock;
};
struct nv50_gpio_handler {
struct drm_device *dev;
struct list_head head;
struct work_struct work;
bool inhibit;
struct dcb_gpio_entry *gpio;
void (*handler)(void *data, int state);
void *data;
};
static int
nv50_gpio_location(struct dcb_gpio_entry *gpio, uint32_t *reg, uint32_t *shift)
nv50_gpio_location(int line, u32 *reg, u32 *shift)
{
const uint32_t nv50_gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 };
if (gpio->line >= 32)
if (line >= 32)
return -EINVAL;
*reg = nv50_gpio_reg[gpio->line >> 3];
*shift = (gpio->line & 7) << 2;
*reg = nv50_gpio_reg[line >> 3];
*shift = (line & 7) << 2;
return 0;
}
int
nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag)
nv50_gpio_drive(struct drm_device *dev, int line, int dir, int out)
{
struct dcb_gpio_entry *gpio;
uint32_t r, s, v;
u32 reg, shift;
gpio = nouveau_bios_gpio_entry(dev, tag);
if (!gpio)
return -ENOENT;
if (nv50_gpio_location(gpio, &r, &s))
if (nv50_gpio_location(line, &reg, &shift))
return -EINVAL;
v = nv_rd32(dev, r) >> (s + 2);
return ((v & 1) == (gpio->state[1] & 1));
nv_mask(dev, reg, 7 << shift, (((dir ^ 1) << 1) | out) << shift);
return 0;
}
int
nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state)
nv50_gpio_sense(struct drm_device *dev, int line)
{
struct dcb_gpio_entry *gpio;
uint32_t r, s, v;
u32 reg, shift;
gpio = nouveau_bios_gpio_entry(dev, tag);
if (!gpio)
return -ENOENT;
if (nv50_gpio_location(gpio, &r, &s))
if (nv50_gpio_location(line, &reg, &shift))
return -EINVAL;
v = nv_rd32(dev, r) & ~(0x3 << s);
v |= (gpio->state[state] ^ 2) << s;
nv_wr32(dev, r, v);
return 0;
}
int
nvd0_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag)
{
struct dcb_gpio_entry *gpio;
u32 v;
gpio = nouveau_bios_gpio_entry(dev, tag);
if (!gpio)
return -ENOENT;
v = nv_rd32(dev, 0x00d610 + (gpio->line * 4));
v &= 0x00004000;
return (!!v == (gpio->state[1] & 1));
}
int
nvd0_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state)
{
struct dcb_gpio_entry *gpio;
u32 v;
gpio = nouveau_bios_gpio_entry(dev, tag);
if (!gpio)
return -ENOENT;
v = gpio->state[state] ^ 2;
nv_mask(dev, 0x00d610 + (gpio->line * 4), 0x00003000, v << 12);
return 0;
}
int
nv50_gpio_irq_register(struct drm_device *dev, enum dcb_gpio_tag tag,
void (*handler)(void *, int), void *data)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct nv50_gpio_priv *priv = pgpio->priv;
struct nv50_gpio_handler *gpioh;
struct dcb_gpio_entry *gpio;
unsigned long flags;
gpio = nouveau_bios_gpio_entry(dev, tag);
if (!gpio)
return -ENOENT;
gpioh = kzalloc(sizeof(*gpioh), GFP_KERNEL);
if (!gpioh)
return -ENOMEM;
INIT_WORK(&gpioh->work, nv50_gpio_isr_bh);
gpioh->dev = dev;
gpioh->gpio = gpio;
gpioh->handler = handler;
gpioh->data = data;
spin_lock_irqsave(&priv->lock, flags);
list_add(&gpioh->head, &priv->handlers);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
return !!(nv_rd32(dev, reg) & (4 << shift));
}
void
nv50_gpio_irq_unregister(struct drm_device *dev, enum dcb_gpio_tag tag,
void (*handler)(void *, int), void *data)
nv50_gpio_irq_enable(struct drm_device *dev, int line, bool on)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct nv50_gpio_priv *priv = pgpio->priv;
struct nv50_gpio_handler *gpioh, *tmp;
struct dcb_gpio_entry *gpio;
LIST_HEAD(tofree);
unsigned long flags;
gpio = nouveau_bios_gpio_entry(dev, tag);
if (!gpio)
return;
spin_lock_irqsave(&priv->lock, flags);
list_for_each_entry_safe(gpioh, tmp, &priv->handlers, head) {
if (gpioh->gpio != gpio ||
gpioh->handler != handler ||
gpioh->data != data)
continue;
list_move(&gpioh->head, &tofree);
}
spin_unlock_irqrestore(&priv->lock, flags);
list_for_each_entry_safe(gpioh, tmp, &tofree, head) {
flush_work_sync(&gpioh->work);
kfree(gpioh);
}
}
bool
nv50_gpio_irq_enable(struct drm_device *dev, enum dcb_gpio_tag tag, bool on)
{
struct dcb_gpio_entry *gpio;
u32 reg, mask;
gpio = nouveau_bios_gpio_entry(dev, tag);
if (!gpio)
return false;
reg = gpio->line < 16 ? 0xe050 : 0xe070;
mask = 0x00010001 << (gpio->line & 0xf);
u32 reg = line < 16 ? 0xe050 : 0xe070;
u32 mask = 0x00010001 << (line & 0xf);
nv_wr32(dev, reg + 4, mask);
reg = nv_mask(dev, reg + 0, mask, on ? mask : 0);
return (reg & mask) == mask;
nv_mask(dev, reg + 0, mask, on ? mask : 0);
}
static int
nv50_gpio_create(struct drm_device *dev)
int
nvd0_gpio_drive(struct drm_device *dev, int line, int dir, int out)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct nv50_gpio_priv *priv;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
INIT_LIST_HEAD(&priv->handlers);
spin_lock_init(&priv->lock);
pgpio->priv = priv;
u32 data = ((dir ^ 1) << 13) | (out << 12);
nv_mask(dev, 0x00d610 + (line * 4), 0x00003000, data);
nv_mask(dev, 0x00d604, 0x00000001, 0x00000001); /* update? */
return 0;
}
int
nvd0_gpio_sense(struct drm_device *dev, int line)
{
return !!(nv_rd32(dev, 0x00d610 + (line * 4)) & 0x00004000);
}
static void
nv50_gpio_destroy(struct drm_device *dev)
nv50_gpio_isr(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
u32 intr0, intr1 = 0;
u32 hi, lo;
kfree(pgpio->priv);
pgpio->priv = NULL;
intr0 = nv_rd32(dev, 0xe054) & nv_rd32(dev, 0xe050);
if (dev_priv->chipset >= 0x90)
intr1 = nv_rd32(dev, 0xe074) & nv_rd32(dev, 0xe070);
hi = (intr0 & 0x0000ffff) | (intr1 << 16);
lo = (intr0 >> 16) | (intr1 & 0xffff0000);
nouveau_gpio_isr(dev, 0, hi | lo);
nv_wr32(dev, 0xe054, intr0);
if (dev_priv->chipset >= 0x90)
nv_wr32(dev, 0xe074, intr1);
}
int
nv50_gpio_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
int ret;
if (!pgpio->priv) {
ret = nv50_gpio_create(dev);
if (ret)
return ret;
}
/* disable, and ack any pending gpio interrupts */
nv_wr32(dev, 0xe050, 0x00000000);
@ -270,64 +136,4 @@ nv50_gpio_fini(struct drm_device *dev)
if (dev_priv->chipset >= 0x90)
nv_wr32(dev, 0xe070, 0x00000000);
nouveau_irq_unregister(dev, 21);
nv50_gpio_destroy(dev);
}
static void
nv50_gpio_isr_bh(struct work_struct *work)
{
struct nv50_gpio_handler *gpioh =
container_of(work, struct nv50_gpio_handler, work);
struct drm_nouveau_private *dev_priv = gpioh->dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct nv50_gpio_priv *priv = pgpio->priv;
unsigned long flags;
int state;
state = pgpio->get(gpioh->dev, gpioh->gpio->tag);
if (state < 0)
return;
gpioh->handler(gpioh->data, state);
spin_lock_irqsave(&priv->lock, flags);
gpioh->inhibit = false;
spin_unlock_irqrestore(&priv->lock, flags);
}
static void
nv50_gpio_isr(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
struct nv50_gpio_priv *priv = pgpio->priv;
struct nv50_gpio_handler *gpioh;
u32 intr0, intr1 = 0;
u32 hi, lo, ch;
intr0 = nv_rd32(dev, 0xe054) & nv_rd32(dev, 0xe050);
if (dev_priv->chipset >= 0x90)
intr1 = nv_rd32(dev, 0xe074) & nv_rd32(dev, 0xe070);
hi = (intr0 & 0x0000ffff) | (intr1 << 16);
lo = (intr0 >> 16) | (intr1 & 0xffff0000);
ch = hi | lo;
nv_wr32(dev, 0xe054, intr0);
if (dev_priv->chipset >= 0x90)
nv_wr32(dev, 0xe074, intr1);
spin_lock(&priv->lock);
list_for_each_entry(gpioh, &priv->handlers, head) {
if (!(ch & (1 << gpioh->gpio->line)))
continue;
if (gpioh->inhibit)
continue;
gpioh->inhibit = true;
schedule_work(&gpioh->work);
}
spin_unlock(&priv->lock);
}