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-rw-r--r--arch/arm/mach-omap2/display.c2
-rw-r--r--arch/arm/mach-omap2/hdq1w.c4
-rw-r--r--arch/arm/mach-omap2/i2c.c2
-rw-r--r--arch/arm/mach-omap2/msdi.c4
-rw-r--r--arch/arm/mach-omap2/mux.c2
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c26
-rw-r--r--arch/arm/mach-omap2/pdata-quirks.c4
-rw-r--r--arch/arm/mach-omap2/pm34xx.c2
-rw-r--r--arch/arm/mach-omap2/smartreflex-class3.c4
-rw-r--r--arch/arm/mach-omap2/sr_device.c2
-rw-r--r--arch/arm/mach-omap2/vc.c2
-rw-r--r--arch/arm/mach-omap2/voltage.c22
-rw-r--r--arch/arm/mach-omap2/wd_timer.c4
-rw-r--r--arch/arm/plat-omap/dma.c737
-rw-r--r--include/linux/omap-dma.h37
15 files changed, 46 insertions, 808 deletions
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index bf852d7..7a050f9 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -544,7 +544,7 @@ int omap_dss_reset(struct omap_hwmod *oh)
MAX_MODULE_SOFTRESET_WAIT, c);
if (c == MAX_MODULE_SOFTRESET_WAIT)
- pr_warning("dss_core: waiting for reset to finish failed\n");
+ pr_warn("dss_core: waiting for reset to finish failed\n");
else
pr_debug("dss_core: softreset done\n");
diff --git a/arch/arm/mach-omap2/hdq1w.c b/arch/arm/mach-omap2/hdq1w.c
index f78b4a1..f3897d8 100644
--- a/arch/arm/mach-omap2/hdq1w.c
+++ b/arch/arm/mach-omap2/hdq1w.c
@@ -67,8 +67,8 @@ int omap_hdq1w_reset(struct omap_hwmod *oh)
MAX_MODULE_SOFTRESET_WAIT, c);
if (c == MAX_MODULE_SOFTRESET_WAIT)
- pr_warning("%s: %s: softreset failed (waited %d usec)\n",
- __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
+ pr_warn("%s: %s: softreset failed (waited %d usec)\n",
+ __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
else
pr_debug("%s: %s: softreset in %d usec\n", __func__,
oh->name, c);
diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c
index b456b44..b9d8e47 100644
--- a/arch/arm/mach-omap2/i2c.c
+++ b/arch/arm/mach-omap2/i2c.c
@@ -99,7 +99,7 @@ int omap_i2c_reset(struct omap_hwmod *oh)
MAX_MODULE_SOFTRESET_WAIT, c);
if (c == MAX_MODULE_SOFTRESET_WAIT)
- pr_warning("%s: %s: softreset failed (waited %d usec)\n",
+ pr_warn("%s: %s: softreset failed (waited %d usec)\n",
__func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
else
pr_debug("%s: %s: softreset in %d usec\n", __func__,
diff --git a/arch/arm/mach-omap2/msdi.c b/arch/arm/mach-omap2/msdi.c
index 828e0db..8bdf182 100644
--- a/arch/arm/mach-omap2/msdi.c
+++ b/arch/arm/mach-omap2/msdi.c
@@ -76,8 +76,8 @@ int omap_msdi_reset(struct omap_hwmod *oh)
MAX_MODULE_SOFTRESET_WAIT, c);
if (c == MAX_MODULE_SOFTRESET_WAIT)
- pr_warning("%s: %s: softreset failed (waited %d usec)\n",
- __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
+ pr_warn("%s: %s: softreset failed (waited %d usec)\n",
+ __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
else
pr_debug("%s: %s: softreset in %d usec\n", __func__,
oh->name, c);
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index ac8a249..78064b0 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -814,7 +814,7 @@ int __init omap_mux_late_init(void)
"hwmod_io", omap_mux_late_init);
if (ret)
- pr_warning("mux: Failed to setup hwmod io irq %d\n", ret);
+ pr_warn("mux: Failed to setup hwmod io irq %d\n", ret);
return 0;
}
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 8fd87a3..98f8ec0 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -769,8 +769,8 @@ static int _init_main_clk(struct omap_hwmod *oh)
oh->_clk = clk_get(NULL, oh->main_clk);
if (IS_ERR(oh->_clk)) {
- pr_warning("omap_hwmod: %s: cannot clk_get main_clk %s\n",
- oh->name, oh->main_clk);
+ pr_warn("omap_hwmod: %s: cannot clk_get main_clk %s\n",
+ oh->name, oh->main_clk);
return -EINVAL;
}
/*
@@ -814,8 +814,8 @@ static int _init_interface_clks(struct omap_hwmod *oh)
c = clk_get(NULL, os->clk);
if (IS_ERR(c)) {
- pr_warning("omap_hwmod: %s: cannot clk_get interface_clk %s\n",
- oh->name, os->clk);
+ pr_warn("omap_hwmod: %s: cannot clk_get interface_clk %s\n",
+ oh->name, os->clk);
ret = -EINVAL;
continue;
}
@@ -851,8 +851,8 @@ static int _init_opt_clks(struct omap_hwmod *oh)
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) {
c = clk_get(NULL, oc->clk);
if (IS_ERR(c)) {
- pr_warning("omap_hwmod: %s: cannot clk_get opt_clk %s\n",
- oh->name, oc->clk);
+ pr_warn("omap_hwmod: %s: cannot clk_get opt_clk %s\n",
+ oh->name, oc->clk);
ret = -EINVAL;
continue;
}
@@ -1576,7 +1576,7 @@ static int _init_clkdm(struct omap_hwmod *oh)
oh->clkdm = clkdm_lookup(oh->clkdm_name);
if (!oh->clkdm) {
- pr_warning("omap_hwmod: %s: could not associate to clkdm %s\n",
+ pr_warn("omap_hwmod: %s: could not associate to clkdm %s\n",
oh->name, oh->clkdm_name);
return 0;
}
@@ -1616,7 +1616,7 @@ static int _init_clocks(struct omap_hwmod *oh, void *data)
if (!ret)
oh->_state = _HWMOD_STATE_CLKS_INITED;
else
- pr_warning("omap_hwmod: %s: cannot _init_clocks\n", oh->name);
+ pr_warn("omap_hwmod: %s: cannot _init_clocks\n", oh->name);
return ret;
}
@@ -1739,7 +1739,7 @@ static int _deassert_hardreset(struct omap_hwmod *oh, const char *name)
_disable_clocks(oh);
if (ret == -EBUSY)
- pr_warning("omap_hwmod: %s: failed to hardreset\n", oh->name);
+ pr_warn("omap_hwmod: %s: failed to hardreset\n", oh->name);
if (!ret) {
/*
@@ -1953,8 +1953,8 @@ static int _ocp_softreset(struct omap_hwmod *oh)
c = _wait_softreset_complete(oh);
if (c == MAX_MODULE_SOFTRESET_WAIT) {
- pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n",
- oh->name, MAX_MODULE_SOFTRESET_WAIT);
+ pr_warn("omap_hwmod: %s: softreset failed (waited %d usec)\n",
+ oh->name, MAX_MODULE_SOFTRESET_WAIT);
ret = -ETIMEDOUT;
goto dis_opt_clks;
} else {
@@ -2618,8 +2618,8 @@ static int __init _setup_reset(struct omap_hwmod *oh)
if (oh->rst_lines_cnt == 0) {
r = _enable(oh);
if (r) {
- pr_warning("omap_hwmod: %s: cannot be enabled for reset (%d)\n",
- oh->name, oh->_state);
+ pr_warn("omap_hwmod: %s: cannot be enabled for reset (%d)\n",
+ oh->name, oh->_state);
return -EINVAL;
}
}
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 90c88d4..73b333f 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -244,8 +244,8 @@ static void __init nokia_n900_legacy_init(void)
/* set IBE to 1 */
rx51_secure_update_aux_cr(BIT(6), 0);
} else {
- pr_warning("RX-51: Not enabling ARM errata 430973 workaround\n");
- pr_warning("Thumb binaries may crash randomly without this workaround\n");
+ pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n");
+ pr_warn("Thumb binaries may crash randomly without this workaround\n");
}
pr_info("RX-51: Registring OMAP3 HWRNG device\n");
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 3f80929..175564c 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -465,7 +465,7 @@ int __init omap3_pm_init(void)
int ret;
if (!omap3_has_io_chain_ctrl())
- pr_warning("PM: no software I/O chain control; some wakeups may be lost\n");
+ pr_warn("PM: no software I/O chain control; some wakeups may be lost\n");
pm_errata_configure();
diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c
index 7a42e19..d3a588c 100644
--- a/arch/arm/mach-omap2/smartreflex-class3.c
+++ b/arch/arm/mach-omap2/smartreflex-class3.c
@@ -20,8 +20,8 @@ static int sr_class3_enable(struct omap_sr *sr)
unsigned long volt = voltdm_get_voltage(sr->voltdm);
if (!volt) {
- pr_warning("%s: Curr voltage unknown. Cannot enable %s\n",
- __func__, sr->name);
+ pr_warn("%s: Curr voltage unknown. Cannot enable %s\n",
+ __func__, sr->name);
return -ENODATA;
}
diff --git a/arch/arm/mach-omap2/sr_device.c b/arch/arm/mach-omap2/sr_device.c
index 1b91ef0..d7cff26 100644
--- a/arch/arm/mach-omap2/sr_device.c
+++ b/arch/arm/mach-omap2/sr_device.c
@@ -154,7 +154,7 @@ static int __init sr_dev_init(struct omap_hwmod *oh, void *user)
pdev = omap_device_build(name, i, oh, sr_data, sizeof(*sr_data));
if (IS_ERR(pdev))
- pr_warning("%s: Could not build omap_device for %s: %s.\n\n",
+ pr_warn("%s: Could not build omap_device for %s: %s\n",
__func__, name, oh->name);
exit:
i++;
diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c
index a4628a9..be9ef83 100644
--- a/arch/arm/mach-omap2/vc.c
+++ b/arch/arm/mach-omap2/vc.c
@@ -198,7 +198,7 @@ int omap_vc_bypass_scale(struct voltagedomain *voltdm,
loop_cnt++;
if (retries_cnt > 10) {
- pr_warning("%s: Retry count exceeded\n", __func__);
+ pr_warn("%s: Retry count exceeded\n", __func__);
return -ETIMEDOUT;
}
diff --git a/arch/arm/mach-omap2/voltage.c b/arch/arm/mach-omap2/voltage.c
index 3ac8fe1..3783b86 100644
--- a/arch/arm/mach-omap2/voltage.c
+++ b/arch/arm/mach-omap2/voltage.c
@@ -55,7 +55,7 @@ static LIST_HEAD(voltdm_list);
unsigned long voltdm_get_voltage(struct voltagedomain *voltdm)
{
if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
+ pr_warn("%s: VDD specified does not exist!\n", __func__);
return 0;
}
@@ -77,7 +77,7 @@ int voltdm_scale(struct voltagedomain *voltdm,
unsigned long volt = 0;
if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
+ pr_warn("%s: VDD specified does not exist!\n", __func__);
return -EINVAL;
}
@@ -96,8 +96,8 @@ int voltdm_scale(struct voltagedomain *voltdm,
}
if (!volt) {
- pr_warning("%s: not scaling. OPP voltage for %lu, not found.\n",
- __func__, target_volt);
+ pr_warn("%s: not scaling. OPP voltage for %lu, not found.\n",
+ __func__, target_volt);
return -EINVAL;
}
@@ -122,7 +122,7 @@ void voltdm_reset(struct voltagedomain *voltdm)
unsigned long target_volt;
if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
+ pr_warn("%s: VDD specified does not exist!\n", __func__);
return;
}
@@ -152,7 +152,7 @@ void omap_voltage_get_volttable(struct voltagedomain *voltdm,
struct omap_volt_data **volt_data)
{
if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
+ pr_warn("%s: VDD specified does not exist!\n", __func__);
return;
}
@@ -180,12 +180,12 @@ struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm,
int i;
if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
+ pr_warn("%s: VDD specified does not exist!\n", __func__);
return ERR_PTR(-EINVAL);
}
if (!voltdm->volt_data) {
- pr_warning("%s: voltage table does not exist for vdd_%s\n",
+ pr_warn("%s: voltage table does not exist for vdd_%s\n",
__func__, voltdm->name);
return ERR_PTR(-ENODATA);
}
@@ -214,7 +214,7 @@ int omap_voltage_register_pmic(struct voltagedomain *voltdm,
struct omap_voltdm_pmic *pmic)
{
if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
+ pr_warn("%s: VDD specified does not exist!\n", __func__);
return -EINVAL;
}
@@ -237,7 +237,7 @@ void omap_change_voltscale_method(struct voltagedomain *voltdm,
int voltscale_method)
{
if (!voltdm || IS_ERR(voltdm)) {
- pr_warning("%s: VDD specified does not exist!\n", __func__);
+ pr_warn("%s: VDD specified does not exist!\n", __func__);
return;
}
@@ -279,7 +279,7 @@ int __init omap_voltage_late_init(void)
sys_ck = clk_get(NULL, voltdm->sys_clk.name);
if (IS_ERR(sys_ck)) {
- pr_warning("%s: Could not get sys clk.\n", __func__);
+ pr_warn("%s: Could not get sys clk.\n", __func__);
return -EINVAL;
}
voltdm->sys_clk.rate = clk_get_rate(sys_ck);
diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c
index 97d6607..ff0a68c 100644
--- a/arch/arm/mach-omap2/wd_timer.c
+++ b/arch/arm/mach-omap2/wd_timer.c
@@ -93,8 +93,8 @@ int omap2_wd_timer_reset(struct omap_hwmod *oh)
udelay(oh->class->sysc->srst_udelay);
if (c == MAX_MODULE_SOFTRESET_WAIT)
- pr_warning("%s: %s: softreset failed (waited %d usec)\n",
- __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
+ pr_warn("%s: %s: softreset failed (waited %d usec)\n",
+ __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT);
else
pr_debug("%s: %s: softreset in %d usec\n", __func__,
oh->name, c);
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index c2baa8e..24770e5 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -64,7 +64,9 @@ enum { DMA_CHAIN_STARTED, DMA_CHAIN_NOTSTARTED };
static struct omap_system_dma_plat_info *p;
static struct omap_dma_dev_attr *d;
-
+static void omap_clear_dma(int lch);
+static int omap_dma_set_prio_lch(int lch, unsigned char read_prio,
+ unsigned char write_prio);
static int enable_1510_mode;
static u32 errata;
@@ -284,66 +286,6 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
}
EXPORT_SYMBOL(omap_set_dma_transfer_params);
-void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color)
-{
- BUG_ON(omap_dma_in_1510_mode());
-
- if (dma_omap1()) {
- u16 w;
-
- w = p->dma_read(CCR2, lch);
- w &= ~0x03;
-
- switch (mode) {
- case OMAP_DMA_CONSTANT_FILL:
- w |= 0x01;
- break;
- case OMAP_DMA_TRANSPARENT_COPY:
- w |= 0x02;
- break;
- case OMAP_DMA_COLOR_DIS:
- break;
- default:
- BUG();
- }
- p->dma_write(w, CCR2, lch);
-
- w = p->dma_read(LCH_CTRL, lch);
- w &= ~0x0f;
- /* Default is channel type 2D */
- if (mode) {
- p->dma_write(color, COLOR, lch);
- w |= 1; /* Channel type G */
- }
- p->dma_write(w, LCH_CTRL, lch);
- }
-
- if (dma_omap2plus()) {
- u32 val;
-
- val = p->dma_read(CCR, lch);
- val &= ~((1 << 17) | (1 << 16));
-
- switch (mode) {
- case OMAP_DMA_CONSTANT_FILL:
- val |= 1 << 16;
- break;
- case OMAP_DMA_TRANSPARENT_COPY:
- val |= 1 << 17;
- break;
- case OMAP_DMA_COLOR_DIS:
- break;
- default:
- BUG();
- }
- p->dma_write(val, CCR, lch);
-
- color &= 0xffffff;
- p->dma_write(color, COLOR, lch);
- }
-}
-EXPORT_SYMBOL(omap_set_dma_color_mode);
-
void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode)
{
if (dma_omap2plus()) {
@@ -417,16 +359,6 @@ void omap_set_dma_params(int lch, struct omap_dma_channel_params *params)
}
EXPORT_SYMBOL(omap_set_dma_params);
-void omap_set_dma_src_index(int lch, int eidx, int fidx)
-{
- if (dma_omap2plus())
- return;
-
- p->dma_write(eidx, CSEI, lch);
- p->dma_write(fidx, CSFI, lch);
-}
-EXPORT_SYMBOL(omap_set_dma_src_index);
-
void omap_set_dma_src_data_pack(int lch, int enable)
{
u32 l;
@@ -510,16 +442,6 @@ void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
}
EXPORT_SYMBOL(omap_set_dma_dest_params);
-void omap_set_dma_dest_index(int lch, int eidx, int fidx)
-{
- if (dma_omap2plus())
- return;
-
- p->dma_write(eidx, CDEI, lch);
- p->dma_write(fidx, CDFI, lch);
-}
-EXPORT_SYMBOL(omap_set_dma_dest_index);
-
void omap_set_dma_dest_data_pack(int lch, int enable)
{
u32 l;
@@ -843,7 +765,7 @@ EXPORT_SYMBOL(omap_dma_set_global_params);
* Both of the above can be set with one of the following values :
* DMA_CH_PRIO_HIGH/DMA_CH_PRIO_LOW
*/
-int
+static int
omap_dma_set_prio_lch(int lch, unsigned char read_prio,
unsigned char write_prio)
{
@@ -864,13 +786,13 @@ omap_dma_set_prio_lch(int lch, unsigned char read_prio,
return 0;
}
-EXPORT_SYMBOL(omap_dma_set_prio_lch);
+
/*
* Clears any DMA state so the DMA engine is ready to restart with new buffers
* through omap_start_dma(). Any buffers in flight are discarded.
*/
-void omap_clear_dma(int lch)
+static void omap_clear_dma(int lch)
{
unsigned long flags;
@@ -878,7 +800,6 @@ void omap_clear_dma(int lch)
p->clear_dma(lch);
local_irq_restore(flags);
}
-EXPORT_SYMBOL(omap_clear_dma);
void omap_start_dma(int lch)
{
@@ -1167,652 +1088,6 @@ void omap_dma_link_lch(int lch_head, int lch_queue)
}
EXPORT_SYMBOL(omap_dma_link_lch);
-/*
- * Once the DMA queue is stopped, we can destroy it.
- */
-void omap_dma_unlink_lch(int lch_head, int lch_queue)
-{
- if (omap_dma_in_1510_mode()) {
- if (lch_head == lch_queue) {
- p->dma_write(p->dma_read(CCR, lch_head) & ~(3 << 8),
- CCR, lch_head);
- return;
- }
- printk(KERN_ERR "DMA linking is not supported in 1510 mode\n");
- BUG();
- return;
- }
-
- if (dma_chan[lch_head].next_lch != lch_queue ||
- dma_chan[lch_head].next_lch == -1) {
- pr_err("omap_dma: trying to unlink non linked channels\n");
- dump_stack();
- }
-
- if ((dma_chan[lch_head].flags & OMAP_DMA_ACTIVE) ||
- (dma_chan[lch_queue].flags & OMAP_DMA_ACTIVE)) {
- pr_err("omap_dma: You need to stop the DMA channels before unlinking\n");
- dump_stack();
- }
-
- dma_chan[lch_head].next_lch = -1;
-}
-EXPORT_SYMBOL(omap_dma_unlink_lch);
-
-#ifndef CONFIG_ARCH_OMAP1
-/* Create chain of DMA channesls */
-static void create_dma_lch_chain(int lch_head, int lch_queue)
-{
- u32 l;
-
- /* Check if this is the first link in chain */
- if (dma_chan[lch_head].next_linked_ch == -1) {
- dma_chan[lch_head].next_linked_ch = lch_queue;
- dma_chan[lch_head].prev_linked_ch = lch_queue;
- dma_chan[lch_queue].next_linked_ch = lch_head;
- dma_chan[lch_queue].prev_linked_ch = lch_head;
- }
-
- /* a link exists, link the new channel in circular chain */
- else {
- dma_chan[lch_queue].next_linked_ch =
- dma_chan[lch_head].next_linked_ch;
- dma_chan[lch_queue].prev_linked_ch = lch_head;
- dma_chan[lch_head].next_linked_ch = lch_queue;
- dma_chan[dma_chan[lch_queue].next_linked_ch].prev_linked_ch =
- lch_queue;
- }
-
- l = p->dma_read(CLNK_CTRL, lch_head);
- l &= ~(0x1f);
- l |= lch_queue;
- p->dma_write(l, CLNK_CTRL, lch_head);
-
- l = p->dma_read(CLNK_CTRL, lch_queue);
- l &= ~(0x1f);
- l |= (dma_chan[lch_queue].next_linked_ch);
- p->dma_write(l, CLNK_CTRL, lch_queue);
-}
-
-/**
- * @brief omap_request_dma_chain : Request a chain of DMA channels
- *
- * @param dev_id - Device id using the dma channel
- * @param dev_name - Device name
- * @param callback - Call back function
- * @chain_id -
- * @no_of_chans - Number of channels requested
- * @chain_mode - Dynamic or static chaining : OMAP_DMA_STATIC_CHAIN
- * OMAP_DMA_DYNAMIC_CHAIN
- * @params - Channel parameters
- *
- * @return - Success : 0
- * Failure: -EINVAL/-ENOMEM
- */
-int omap_request_dma_chain(int dev_id, const char *dev_name,
- void (*callback) (int lch, u16 ch_status,
- void *data),
- int *chain_id, int no_of_chans, int chain_mode,
- struct omap_dma_channel_params params)
-{
- int *channels;
- int i, err;
-
- /* Is the chain mode valid ? */
- if (chain_mode != OMAP_DMA_STATIC_CHAIN
- && chain_mode != OMAP_DMA_DYNAMIC_CHAIN) {
- printk(KERN_ERR "Invalid chain mode requested\n");
- return -EINVAL;
- }
-
- if (unlikely((no_of_chans < 1
- || no_of_chans > dma_lch_count))) {
- printk(KERN_ERR "Invalid Number of channels requested\n");
- return -EINVAL;
- }
-
- /*
- * Allocate a queue to maintain the status of the channels
- * in the chain
- */
- channels = kmalloc(sizeof(*channels) * no_of_chans, GFP_KERNEL);
- if (channels == NULL) {
- printk(KERN_ERR "omap_dma: No memory for channel queue\n");
- return -ENOMEM;
- }
-
- /* request and reserve DMA channels for the chain */
- for (i = 0; i < no_of_chans; i++) {
- err = omap_request_dma(dev_id, dev_name,
- callback, NULL, &channels[i]);
- if (err < 0) {
- int j;
- for (j = 0; j < i; j++)
- omap_free_dma(channels[j]);
- kfree(channels);
- printk(KERN_ERR "omap_dma: Request failed %d\n", err);
- return err;
- }
- dma_chan[channels[i]].prev_linked_ch = -1;
- dma_chan[channels[i]].state = DMA_CH_NOTSTARTED;
-
- /*
- * Allowing client drivers to set common parameters now,
- * so that later only relevant (src_start, dest_start
- * and element count) can be set
- */
- omap_set_dma_params(channels[i], &params);
- }
-
- *chain_id = channels[0];
- dma_linked_lch[*chain_id].linked_dmach_q = channels;
- dma_linked_lch[*chain_id].chain_mode = chain_mode;
- dma_linked_lch[*chain_id].chain_state = DMA_CHAIN_NOTSTARTED;
- dma_linked_lch[*chain_id].no_of_lchs_linked = no_of_chans;
-
- for (i = 0; i < no_of_chans; i++)
- dma_chan[channels[i]].chain_id = *chain_id;
-
- /* Reset the Queue pointers */
- OMAP_DMA_CHAIN_QINIT(*chain_id);
-
- /* Set up the chain */
- if (no_of_chans == 1)
- create_dma_lch_chain(channels[0], channels[0]);
- else {
- for (i = 0; i < (no_of_chans - 1); i++)
- create_dma_lch_chain(channels[i], channels[i + 1]);
- }
-
- return 0;
-}
-EXPORT_SYMBOL(omap_request_dma_chain);
-
-/**
- * @brief omap_modify_dma_chain_param : Modify the chain's params - Modify the
- * params after setting it. Dont do this while dma is running!!
- *
- * @param chain_id - Chained logical channel id.
- * @param params
- *
- * @return - Success : 0
- * Failure : -EINVAL
- */
-int omap_modify_dma_chain_params(int chain_id,
- struct omap_dma_channel_params params)
-{
- int *channels;
- u32 i;
-
- /* Check for input params */
- if (unlikely((chain_id < 0
- || chain_id >= dma_lch_count))) {
- printk(KERN_ERR "Invalid chain id\n");
- return -EINVAL;
- }
-
- /* Check if the chain exists */
- if (dma_linked_lch[chain_id].linked_dmach_q == NULL) {
- printk(KERN_ERR "Chain doesn't exists\n");
- return -EINVAL;
- }
- channels = dma_linked_lch[chain_id].linked_dmach_q;
-
- for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked; i++) {
- /*
- * Allowing client drivers to set common parameters now,
- * so that later only relevant (src_start, dest_start
- * and element count) can be set
- */
- omap_set_dma_params(channels[i], &params);
- }
-
- return 0;
-}
-EXPORT_SYMBOL(omap_modify_dma_chain_params);
-
-/**
- * @brief omap_free_dma_chain - Free all the logical channels in a chain.
- *
- * @param chain_id
- *
- * @return - Success : 0
- * Failure : -EINVAL
- */
-int omap_free_dma_chain(int chain_id)
-{
- int *channels;
- u32 i;
-
- /* Check for input params */
- if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) {
- printk(KERN_ERR "Invalid chain id\n");
- return -EINVAL;
- }
-
- /* Check if the chain exists */
- if (dma_linked_lch[chain_id].linked_dmach_q == NULL) {
- printk(KERN_ERR "Chain doesn't exists\n");
- return -EINVAL;
- }
-
- channels = dma_linked_lch[chain_id].linked_dmach_q;
- for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked; i++) {
- dma_chan[channels[i]].next_linked_ch = -1;
- dma_chan[channels[i]].prev_linked_ch = -1;
- dma_chan[channels[i]].chain_id = -1;
- dma_chan[channels[i]].state = DMA_CH_NOTSTARTED;
- omap_free_dma(channels[i]);
- }
-
- kfree(channels);
-
- dma_linked_lch[chain_id].linked_dmach_q = NULL;
- dma_linked_lch[chain_id].chain_mode = -1;
- dma_linked_lch[chain_id].chain_state = -1;
-
- return (0);
-}
-EXPORT_SYMBOL(omap_free_dma_chain);
-
-/**
- * @brief omap_dma_chain_status - Check if the chain is in
- * active / inactive state.
- * @param chain_id
- *
- * @return - Success : OMAP_DMA_CHAIN_ACTIVE/OMAP_DMA_CHAIN_INACTIVE
- * Failure : -EINVAL
- */
-int omap_dma_chain_status(int chain_id)
-{
- /* Check for input params */
- if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) {
- printk(KERN_ERR "Invalid chain id\n");
- return -EINVAL;
- }
-
- /* Check if the chain exists */
- if (dma_linked_lch[chain_id].linked_dmach_q == NULL) {
- printk(KERN_ERR "Chain doesn't exists\n");
- return -EINVAL;
- }
- pr_debug("CHAINID=%d, qcnt=%d\n", chain_id,
- dma_linked_lch[chain_id].q_count);
-
- if (OMAP_DMA_CHAIN_QEMPTY(chain_id))
- return OMAP_DMA_CHAIN_INACTIVE;
-
- return OMAP_DMA_CHAIN_ACTIVE;
-}
-EXPORT_SYMBOL(omap_dma_chain_status);
-
-/**
- * @brief omap_dma_chain_a_transfer - Get a free channel from a chain,
- * set the params and start the transfer.
- *
- * @param chain_id
- * @param src_start - buffer start address
- * @param dest_start - Dest address
- * @param elem_count
- * @param frame_count
- * @param callbk_data - channel callback parameter data.
- *
- * @return - Success : 0
- * Failure: -EINVAL/-EBUSY
- */
-int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start,
- int elem_count, int frame_count, void *callbk_data)
-{
- int *channels;
- u32 l, lch;
- int start_dma = 0;
-
- /*
- * if buffer size is less than 1 then there is
- * no use of starting the chain
- */
- if (elem_count < 1) {
- printk(KERN_ERR "Invalid buffer size\n");
- return -EINVAL;
- }
-
- /* Check for input params */
- if (unlikely((chain_id < 0
- || chain_id >= dma_lch_count))) {
- printk(KERN_ERR "Invalid chain id\n");
- return -EINVAL;
- }
-
- /* Check if the chain exists */
- if (dma_linked_lch[chain_id].linked_dmach_q == NULL) {
- printk(KERN_ERR "Chain doesn't exist\n");
- return -EINVAL;
- }
-
- /* Check if all the channels in chain are in use */
- if (OMAP_DMA_CHAIN_QFULL(chain_id))
- return -EBUSY;
-
- /* Frame count may be negative in case of indexed transfers */
- channels = dma_linked_lch[chain_id].linked_dmach_q;
-
- /* Get a free channel */
- lch = channels[dma_linked_lch[chain_id].q_tail];
-
- /* Store the callback data */
- dma_chan[lch].data = callbk_data;
-
- /* Increment the q_tail */
- OMAP_DMA_CHAIN_INCQTAIL(chain_id);
-
- /* Set the params to the free channel */
- if (src_start != 0)
- p->dma_write(src_start, CSSA, lch);
- if (dest_start != 0)
- p->dma_write(dest_start, CDSA, lch);
-
- /* Write the buffer size */
- p->dma_write(elem_count, CEN, lch);
- p->dma_write(frame_count, CFN, lch);
-
- /*
- * If the chain is dynamically linked,
- * then we may have to start the chain if its not active
- */
- if (dma_linked_lch[chain_id].chain_mode == OMAP_DMA_DYNAMIC_CHAIN) {
-
- /*
- * In Dynamic chain, if the chain is not started,
- * queue the channel
- */
- if (dma_linked_lch[chain_id].chain_state ==
- DMA_CHAIN_NOTSTARTED) {
- /* Enable the link in previous channel */
- if (dma_chan[dma_chan[lch].prev_linked_ch].state ==
- DMA_CH_QUEUED)
- enable_lnk(dma_chan[lch].prev_linked_ch);
- dma_chan[lch].state = DMA_CH_QUEUED;
- }
-
- /*
- * Chain is already started, make sure its active,
- * if not then start the chain
- */
- else {
- start_dma = 1;
-
- if (dma_chan[dma_chan[lch].prev_linked_ch].state ==
- DMA_CH_STARTED) {
- enable_lnk(dma_chan[lch].prev_linked_ch);
- dma_chan[lch].state = DMA_CH_QUEUED;
- start_dma = 0;
- if (0 == ((1 << 7) & p->dma_read(
- CCR, dma_chan[lch].prev_linked_ch))) {
- disable_lnk(dma_chan[lch].
- prev_linked_ch);
- pr_debug("\n prev ch is stopped\n");
- start_dma = 1;
- }
- }
-
- else if (dma_chan[dma_chan[lch].prev_linked_ch].state
- == DMA_CH_QUEUED) {
- enable_lnk(dma_chan[lch].prev_linked_ch);
- dma_chan[lch].state = DMA_CH_QUEUED;
- start_dma = 0;
- }
- omap_enable_channel_irq(lch);
-
- l = p->dma_read(CCR, lch);
-
- if ((0 == (l & (1 << 24))))
- l &= ~(1 << 25);
- else
- l |= (1 << 25);
- if (start_dma == 1) {
- if (0 == (l & (1 << 7))) {
- l |= (1 << 7);
- dma_chan[lch].state = DMA_CH_STARTED;
- pr_debug("starting %d\n", lch);
- p->dma_write(l, CCR, lch);
- } else
- start_dma = 0;
- } else {
- if (0 == (l & (1 << 7)))
- p->dma_write(l, CCR, lch);
- }
- dma_chan[lch].flags |= OMAP_DMA_ACTIVE;
- }
- }
-
- return 0;
-}
-EXPORT_SYMBOL(omap_dma_chain_a_transfer);
-
-/**
- * @brief omap_start_dma_chain_transfers - Start the chain
- *
- * @param chain_id
- *
- * @return - Success : 0
- * Failure : -EINVAL/-EBUSY
- */
-int omap_start_dma_chain_transfers(int chain_id)
-{
- int *channels;
- u32 l, i;
-
- if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) {
- printk(KERN_ERR "Invalid chain id\n");
- return -EINVAL;
- }
-
- channels = dma_linked_lch[chain_id].linked_dmach_q;
-
- if (dma_linked_lch[channels[0]].chain_state == DMA_CHAIN_STARTED) {
- printk(KERN_ERR "Chain is already started\n");
- return -EBUSY;
- }
-
- if (dma_linked_lch[chain_id].chain_mode == OMAP_DMA_STATIC_CHAIN) {
- for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked;
- i++) {
- enable_lnk(channels[i]);
- omap_enable_channel_irq(channels[i]);
- }
- } else {
- omap_enable_channel_irq(channels[0]);
- }
-
- l = p->dma_read(CCR, channels[0]);
- l |= (1 << 7);
- dma_linked_lch[chain_id].chain_state = DMA_CHAIN_STARTED;
- dma_chan[channels[0]].state = DMA_CH_STARTED;
-
- if ((0 == (l & (1 << 24))))
- l &= ~(1 << 25);
- else
- l |= (1 << 25);
- p->dma_write(l, CCR, channels[0]);
-
- dma_chan[channels[0]].flags |= OMAP_DMA_ACTIVE;
-
- return 0;
-}
-EXPORT_SYMBOL(omap_start_dma_chain_transfers);
-
-/**
- * @brief omap_stop_dma_chain_transfers - Stop the dma transfer of a chain.
- *
- * @param chain_id
- *
- * @return - Success : 0
- * Failure : EINVAL
- */
-int omap_stop_dma_chain_transfers(int chain_id)
-{
- int *channels;
- u32 l, i;
- u32 sys_cf = 0;
-
- /* Check for input params */
- if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) {
- printk(KERN_ERR "Invalid chain id\n");
- return -EINVAL;
- }
-
- /* Check if the chain exists */
- if (dma_linked_lch[chain_id].linked_dmach_q == NULL) {
- printk(KERN_ERR "Chain doesn't exists\n");
- return -EINVAL;
- }
- channels = dma_linked_lch[chain_id].linked_dmach_q;
-
- if (IS_DMA_ERRATA(DMA_ERRATA_i88)) {
- sys_cf = p->dma_read(OCP_SYSCONFIG, 0);
- l = sys_cf;
- /* Middle mode reg set no Standby */
- l &= ~((1 << 12)|(1 << 13));
- p->dma_write(l, OCP_SYSCONFIG, 0);
- }
-
- for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked; i++) {
-
- /* Stop the Channel transmission */
- l = p->dma_read(CCR, channels[i]);
- l &= ~(1 << 7);
- p->dma_write(l, CCR, channels[i]);
-
- /* Disable the link in all the channels */
- disable_lnk(channels[i]);
- dma_chan[channels[i]].state = DMA_CH_NOTSTARTED;
-
- }
- dma_linked_lch[chain_id].chain_state = DMA_CHAIN_NOTSTARTED;
-
- /* Reset the Queue pointers */
- OMAP_DMA_CHAIN_QINIT(chain_id);
-
- if (IS_DMA_ERRATA(DMA_ERRATA_i88))
- p->dma_write(sys_cf, OCP_SYSCONFIG, 0);
-
- return 0;
-}
-EXPORT_SYMBOL(omap_stop_dma_chain_transfers);
-
-/* Get the index of the ongoing DMA in chain */
-/**
- * @brief omap_get_dma_chain_index - Get the element and frame index
- * of the ongoing DMA in chain
- *
- * @param chain_id
- * @param ei - Element index
- * @param fi - Frame index
- *
- * @return - Success : 0
- * Failure : -EINVAL
- */
-int omap_get_dma_chain_index(int chain_id, int *ei, int *fi)
-{
- int lch;
- int *channels;
-
- /* Check for input params */
- if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) {
- printk(KERN_ERR "Invalid chain id\n");
- return -EINVAL;
- }
-
- /* Check if the chain exists */
- if (dma_linked_lch[chain_id].linked_dmach_q == NULL) {
- printk(KERN_ERR "Chain doesn't exists\n");
- return -EINVAL;
- }
- if ((!ei) || (!fi))
- return -EINVAL;
-
- channels = dma_linked_lch[chain_id].linked_dmach_q;
-
- /* Get the current channel */
- lch = channels[dma_linked_lch[chain_id].q_head];
-
- *ei = p->dma_read(CCEN, lch);
- *fi = p->dma_read(CCFN, lch);
-
- return 0;
-}
-EXPORT_SYMBOL(omap_get_dma_chain_index);
-
-/**
- * @brief omap_get_dma_chain_dst_pos - Get the destination position of the
- * ongoing DMA in chain
- *
- * @param chain_id
- *
- * @return - Success : Destination position
- * Failure : -EINVAL
- */
-int omap_get_dma_chain_dst_pos(int chain_id)
-{
- int lch;
- int *channels;
-
- /* Check for input params */
- if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) {
- printk(KERN_ERR "Invalid chain id\n");
- return -EINVAL;
- }
-
- /* Check if the chain exists */
- if (dma_linked_lch[chain_id].linked_dmach_q == NULL) {
- printk(KERN_ERR "Chain doesn't exists\n");
- return -EINVAL;
- }
-
- channels = dma_linked_lch[chain_id].linked_dmach_q;
-
- /* Get the current channel */
- lch = channels[dma_linked_lch[chain_id].q_head];
-
- return p->dma_read(CDAC, lch);
-}
-EXPORT_SYMBOL(omap_get_dma_chain_dst_pos);
-
-/**
- * @brief omap_get_dma_chain_src_pos - Get the source position
- * of the ongoing DMA in chain
- * @param chain_id
- *
- * @return - Success : Destination position
- * Failure : -EINVAL
- */
-int omap_get_dma_chain_src_pos(int chain_id)
-{
- int lch;
- int *channels;
-
- /* Check for input params */
- if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) {
- printk(KERN_ERR "Invalid chain id\n");
- return -EINVAL;
- }
-
- /* Check if the chain exists */
- if (dma_linked_lch[chain_id].linked_dmach_q == NULL) {
- printk(KERN_ERR "Chain doesn't exists\n");
- return -EINVAL;
- }
-
- channels = dma_linked_lch[chain_id].linked_dmach_q;
-
- /* Get the current channel */
- lch = channels[dma_linked_lch[chain_id].q_head];
-
- return p->dma_read(CSAC, lch);
-}
-EXPORT_SYMBOL(omap_get_dma_chain_src_pos);
-#endif /* ifndef CONFIG_ARCH_OMAP1 */
-
/*----------------------------------------------------------------------------*/
#ifdef CONFIG_ARCH_OMAP1
diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index 6f06f8b..e5a7013 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -306,15 +306,12 @@ extern void omap_set_dma_transfer_params(int lch, int data_type,
int elem_count, int frame_count,
int sync_mode,
int dma_trigger, int src_or_dst_synch);
-extern void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode,
- u32 color);
extern void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode);
extern void omap_set_dma_channel_mode(int lch, enum omap_dma_channel_mode mode);
extern void omap_set_dma_src_params(int lch, int src_port, int src_amode,
unsigned long src_start,
int src_ei, int src_fi);
-extern void omap_set_dma_src_index(int lch, int eidx, int fidx);
extern void omap_set_dma_src_data_pack(int lch, int enable);
extern void omap_set_dma_src_burst_mode(int lch,
enum omap_dma_burst_mode burst_mode);
@@ -322,7 +319,6 @@ extern void omap_set_dma_src_burst_mode(int lch,
extern void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode,
unsigned long dest_start,
int dst_ei, int dst_fi);
-extern void omap_set_dma_dest_index(int lch, int eidx, int fidx);
extern void omap_set_dma_dest_data_pack(int lch, int enable);
extern void omap_set_dma_dest_burst_mode(int lch,
enum omap_dma_burst_mode burst_mode);
@@ -331,52 +327,19 @@ extern void omap_set_dma_params(int lch,
struct omap_dma_channel_params *params);
extern void omap_dma_link_lch(int lch_head, int lch_queue);
-extern void omap_dma_unlink_lch(int lch_head, int lch_queue);
extern int omap_set_dma_callback(int lch,
void (*callback)(int lch, u16 ch_status, void *data),
void *data);
extern dma_addr_t omap_get_dma_src_pos(int lch);
extern dma_addr_t omap_get_dma_dst_pos(int lch);
-extern void omap_clear_dma(int lch);
extern int omap_get_dma_active_status(int lch);
extern int omap_dma_running(void);
extern void omap_dma_set_global_params(int arb_rate, int max_fifo_depth,
int tparams);
-extern int omap_dma_set_prio_lch(int lch, unsigned char read_prio,
- unsigned char write_prio);
-extern void omap_set_dma_dst_endian_type(int lch, enum end_type etype);
-extern void omap_set_dma_src_endian_type(int lch, enum end_type etype);
-extern int omap_get_dma_index(int lch, int *ei, int *fi);
-
void omap_dma_global_context_save(void);
void omap_dma_global_context_restore(void);
-extern void omap_dma_disable_irq(int lch);
-
-/* Chaining APIs */
-#ifndef CONFIG_ARCH_OMAP1
-extern int omap_request_dma_chain(int dev_id, const char *dev_name,
- void (*callback) (int lch, u16 ch_status,
- void *data),
- int *chain_id, int no_of_chans,
- int chain_mode,
- struct omap_dma_channel_params params);
-extern int omap_free_dma_chain(int chain_id);
-extern int omap_dma_chain_a_transfer(int chain_id, int src_start,
- int dest_start, int elem_count,
- int frame_count, void *callbk_data);
-extern int omap_start_dma_chain_transfers(int chain_id);
-extern int omap_stop_dma_chain_transfers(int chain_id);
-extern int omap_get_dma_chain_index(int chain_id, int *ei, int *fi);
-extern int omap_get_dma_chain_dst_pos(int chain_id);
-extern int omap_get_dma_chain_src_pos(int chain_id);
-
-extern int omap_modify_dma_chain_params(int chain_id,
- struct omap_dma_channel_params params);
-extern int omap_dma_chain_status(int chain_id);
-#endif
-
#if defined(CONFIG_ARCH_OMAP1) && IS_ENABLED(CONFIG_FB_OMAP)
#include <mach/lcd_dma.h>
#else
generated by cgit v0.10.2 at 2024-11-11 02:05:15 (GMT)