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path: root/drivers/ssb/pci.c
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Diffstat (limited to 'drivers/ssb/pci.c')
-rw-r--r--drivers/ssb/pci.c214
1 files changed, 130 insertions, 84 deletions
diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index a8dc95ebf2d6..493bebbba521 100644
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -15,14 +15,14 @@
* Licensed under the GNU/GPL. See COPYING for details.
*/
+#include "ssb_private.h"
+
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_regs.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/delay.h>
-#include "ssb_private.h"
-
/* Define the following to 1 to enable a printk on each coreswitch. */
#define SSB_VERBOSE_PCICORESWITCH_DEBUG 0
@@ -56,7 +56,7 @@ int ssb_pci_switch_coreidx(struct ssb_bus *bus, u8 coreidx)
}
return 0;
error:
- ssb_err("Failed to switch to core %u\n", coreidx);
+ pr_err("Failed to switch to core %u\n", coreidx);
return -ENODEV;
}
@@ -67,9 +67,8 @@ int ssb_pci_switch_core(struct ssb_bus *bus,
unsigned long flags;
#if SSB_VERBOSE_PCICORESWITCH_DEBUG
- ssb_info("Switching to %s core, index %d\n",
- ssb_core_name(dev->id.coreid),
- dev->core_index);
+ pr_info("Switching to %s core, index %d\n",
+ ssb_core_name(dev->id.coreid), dev->core_index);
#endif
spin_lock_irqsave(&bus->bar_lock, flags);
@@ -161,7 +160,7 @@ out:
return err;
err_pci:
- printk(KERN_ERR PFX "Error: ssb_pci_xtal() could not access PCI config space!\n");
+ pr_err("Error: ssb_pci_xtal() could not access PCI config space!\n");
err = -EBUSY;
goto out;
}
@@ -286,7 +285,7 @@ static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
u32 spromctl;
u16 size = bus->sprom_size;
- ssb_notice("Writing SPROM. Do NOT turn off the power! Please stand by...\n");
+ pr_notice("Writing SPROM. Do NOT turn off the power! Please stand by...\n");
err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
if (err)
goto err_ctlreg;
@@ -294,19 +293,18 @@ static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
if (err)
goto err_ctlreg;
- ssb_notice("[ 0%%");
+ pr_notice("[ 0%%");
msleep(500);
for (i = 0; i < size; i++) {
if (i == size / 4)
- ssb_cont("25%%");
+ pr_cont("25%%");
else if (i == size / 2)
- ssb_cont("50%%");
+ pr_cont("50%%");
else if (i == (size * 3) / 4)
- ssb_cont("75%%");
+ pr_cont("75%%");
else if (i % 2)
- ssb_cont(".");
+ pr_cont(".");
writew(sprom[i], bus->mmio + bus->sprom_offset + (i * 2));
- mmiowb();
msleep(20);
}
err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
@@ -317,22 +315,22 @@ static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
if (err)
goto err_ctlreg;
msleep(500);
- ssb_cont("100%% ]\n");
- ssb_notice("SPROM written\n");
+ pr_cont("100%% ]\n");
+ pr_notice("SPROM written\n");
return 0;
err_ctlreg:
- ssb_err("Could not access SPROM control register.\n");
+ pr_err("Could not access SPROM control register.\n");
return err;
}
-static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in,
- u16 mask, u16 shift)
+static s8 sprom_extract_antgain(u8 sprom_revision, const u16 *in, u16 offset,
+ u16 mask, u16 shift)
{
u16 v;
u8 gain;
- v = in[SPOFF(SSB_SPROM1_AGAIN)];
+ v = in[SPOFF(offset)];
gain = (v & mask) >> shift;
if (gain == 0xFF)
gain = 2; /* If unset use 2dBm */
@@ -416,12 +414,14 @@ static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in)
SPEX(alpha2[1], SSB_SPROM1_CCODE, 0x00ff, 0);
/* Extract the antenna gain values. */
- out->antenna_gain.a0 = r123_extract_antgain(out->revision, in,
- SSB_SPROM1_AGAIN_BG,
- SSB_SPROM1_AGAIN_BG_SHIFT);
- out->antenna_gain.a1 = r123_extract_antgain(out->revision, in,
- SSB_SPROM1_AGAIN_A,
- SSB_SPROM1_AGAIN_A_SHIFT);
+ out->antenna_gain.a0 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM1_AGAIN,
+ SSB_SPROM1_AGAIN_BG,
+ SSB_SPROM1_AGAIN_BG_SHIFT);
+ out->antenna_gain.a1 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM1_AGAIN,
+ SSB_SPROM1_AGAIN_A,
+ SSB_SPROM1_AGAIN_A_SHIFT);
if (out->revision >= 2)
sprom_extract_r23(out, in);
}
@@ -468,7 +468,15 @@ static void sprom_extract_r458(struct ssb_sprom *out, const u16 *in)
static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in)
{
+ static const u16 pwr_info_offset[] = {
+ SSB_SPROM4_PWR_INFO_CORE0, SSB_SPROM4_PWR_INFO_CORE1,
+ SSB_SPROM4_PWR_INFO_CORE2, SSB_SPROM4_PWR_INFO_CORE3
+ };
u16 il0mac_offset;
+ int i;
+
+ BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) !=
+ ARRAY_SIZE(out->core_pwr_info));
if (out->revision == 4)
il0mac_offset = SSB_SPROM4_IL0MAC;
@@ -524,14 +532,59 @@ static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in)
}
/* Extract the antenna gain values. */
- SPEX(antenna_gain.a0, SSB_SPROM4_AGAIN01,
- SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT);
- SPEX(antenna_gain.a1, SSB_SPROM4_AGAIN01,
- SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT);
- SPEX(antenna_gain.a2, SSB_SPROM4_AGAIN23,
- SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT);
- SPEX(antenna_gain.a3, SSB_SPROM4_AGAIN23,
- SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT);
+ out->antenna_gain.a0 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM4_AGAIN01,
+ SSB_SPROM4_AGAIN0,
+ SSB_SPROM4_AGAIN0_SHIFT);
+ out->antenna_gain.a1 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM4_AGAIN01,
+ SSB_SPROM4_AGAIN1,
+ SSB_SPROM4_AGAIN1_SHIFT);
+ out->antenna_gain.a2 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM4_AGAIN23,
+ SSB_SPROM4_AGAIN2,
+ SSB_SPROM4_AGAIN2_SHIFT);
+ out->antenna_gain.a3 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM4_AGAIN23,
+ SSB_SPROM4_AGAIN3,
+ SSB_SPROM4_AGAIN3_SHIFT);
+
+ /* Extract cores power info info */
+ for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) {
+ u16 o = pwr_info_offset[i];
+
+ SPEX(core_pwr_info[i].itssi_2g, o + SSB_SPROM4_2G_MAXP_ITSSI,
+ SSB_SPROM4_2G_ITSSI, SSB_SPROM4_2G_ITSSI_SHIFT);
+ SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SPROM4_2G_MAXP_ITSSI,
+ SSB_SPROM4_2G_MAXP, 0);
+
+ SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SPROM4_2G_PA_0, ~0, 0);
+ SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SPROM4_2G_PA_1, ~0, 0);
+ SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SPROM4_2G_PA_2, ~0, 0);
+ SPEX(core_pwr_info[i].pa_2g[3], o + SSB_SPROM4_2G_PA_3, ~0, 0);
+
+ SPEX(core_pwr_info[i].itssi_5g, o + SSB_SPROM4_5G_MAXP_ITSSI,
+ SSB_SPROM4_5G_ITSSI, SSB_SPROM4_5G_ITSSI_SHIFT);
+ SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SPROM4_5G_MAXP_ITSSI,
+ SSB_SPROM4_5G_MAXP, 0);
+ SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM4_5GHL_MAXP,
+ SSB_SPROM4_5GH_MAXP, 0);
+ SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM4_5GHL_MAXP,
+ SSB_SPROM4_5GL_MAXP, SSB_SPROM4_5GL_MAXP_SHIFT);
+
+ SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SPROM4_5GL_PA_0, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SPROM4_5GL_PA_1, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SPROM4_5GL_PA_2, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5gl[3], o + SSB_SPROM4_5GL_PA_3, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SPROM4_5G_PA_0, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SPROM4_5G_PA_1, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SPROM4_5G_PA_2, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5g[3], o + SSB_SPROM4_5G_PA_3, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SPROM4_5GH_PA_0, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SPROM4_5GH_PA_1, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SPROM4_5GH_PA_2, ~0, 0);
+ SPEX(core_pwr_info[i].pa_5gh[3], o + SSB_SPROM4_5GH_PA_3, ~0, 0);
+ }
sprom_extract_r458(out, in);
@@ -542,7 +595,7 @@ static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in)
{
int i;
u16 o;
- u16 pwr_info_offset[] = {
+ static const u16 pwr_info_offset[] = {
SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1,
SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3
};
@@ -621,14 +674,22 @@ static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in)
SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, 0xFFFFFFFF, 0);
/* Extract the antenna gain values. */
- SPEX(antenna_gain.a0, SSB_SPROM8_AGAIN01,
- SSB_SPROM8_AGAIN0, SSB_SPROM8_AGAIN0_SHIFT);
- SPEX(antenna_gain.a1, SSB_SPROM8_AGAIN01,
- SSB_SPROM8_AGAIN1, SSB_SPROM8_AGAIN1_SHIFT);
- SPEX(antenna_gain.a2, SSB_SPROM8_AGAIN23,
- SSB_SPROM8_AGAIN2, SSB_SPROM8_AGAIN2_SHIFT);
- SPEX(antenna_gain.a3, SSB_SPROM8_AGAIN23,
- SSB_SPROM8_AGAIN3, SSB_SPROM8_AGAIN3_SHIFT);
+ out->antenna_gain.a0 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM8_AGAIN01,
+ SSB_SPROM8_AGAIN0,
+ SSB_SPROM8_AGAIN0_SHIFT);
+ out->antenna_gain.a1 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM8_AGAIN01,
+ SSB_SPROM8_AGAIN1,
+ SSB_SPROM8_AGAIN1_SHIFT);
+ out->antenna_gain.a2 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM8_AGAIN23,
+ SSB_SPROM8_AGAIN2,
+ SSB_SPROM8_AGAIN2_SHIFT);
+ out->antenna_gain.a3 = sprom_extract_antgain(out->revision, in,
+ SSB_SPROM8_AGAIN23,
+ SSB_SPROM8_AGAIN3,
+ SSB_SPROM8_AGAIN3_SHIFT);
/* Extract cores power info info */
for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) {
@@ -753,7 +814,7 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
memset(out, 0, sizeof(*out));
out->revision = in[size - 1] & 0x00FF;
- ssb_dbg("SPROM revision %d detected\n", out->revision);
+ pr_debug("SPROM revision %d detected\n", out->revision);
memset(out->et0mac, 0xFF, 6); /* preset et0 and et1 mac */
memset(out->et1mac, 0xFF, 6);
@@ -762,7 +823,7 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
* number stored in the SPROM.
* Always extract r1. */
out->revision = 1;
- ssb_dbg("SPROM treated as revision %d\n", out->revision);
+ pr_debug("SPROM treated as revision %d\n", out->revision);
}
switch (out->revision) {
@@ -779,8 +840,8 @@ static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out,
sprom_extract_r8(out, in);
break;
default:
- ssb_warn("Unsupported SPROM revision %d detected. Will extract v1\n",
- out->revision);
+ pr_warn("Unsupported SPROM revision %d detected. Will extract v1\n",
+ out->revision);
out->revision = 1;
sprom_extract_r123(out, in);
}
@@ -800,7 +861,7 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus,
u16 *buf;
if (!ssb_is_sprom_available(bus)) {
- ssb_err("No SPROM available!\n");
+ pr_err("No SPROM available!\n");
return -ENODEV;
}
if (bus->chipco.dev) { /* can be unavailable! */
@@ -819,7 +880,7 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus,
} else {
bus->sprom_offset = SSB_SPROM_BASE1;
}
- ssb_dbg("SPROM offset is 0x%x\n", bus->sprom_offset);
+ pr_debug("SPROM offset is 0x%x\n", bus->sprom_offset);
buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL);
if (!buf)
@@ -844,15 +905,15 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus,
* available for this device in some other storage */
err = ssb_fill_sprom_with_fallback(bus, sprom);
if (err) {
- ssb_warn("WARNING: Using fallback SPROM failed (err %d)\n",
- err);
+ pr_warn("WARNING: Using fallback SPROM failed (err %d)\n",
+ err);
+ goto out_free;
} else {
- ssb_dbg("Using SPROM revision %d provided by platform\n",
- sprom->revision);
+ pr_debug("Using SPROM revision %d provided by platform\n",
+ sprom->revision);
err = 0;
goto out_free;
}
- ssb_warn("WARNING: Invalid SPROM CRC (corrupt SPROM)\n");
}
}
err = sprom_extract(bus, sprom, buf, bus->sprom_size);
@@ -883,14 +944,12 @@ out:
return err;
}
-#ifdef CONFIG_SSB_DEBUG
static int ssb_pci_assert_buspower(struct ssb_bus *bus)
{
if (likely(bus->powered_up))
return 0;
- printk(KERN_ERR PFX "FATAL ERROR: Bus powered down "
- "while accessing PCI MMIO space\n");
+ pr_err("FATAL ERROR: Bus powered down while accessing PCI MMIO space\n");
if (bus->power_warn_count <= 10) {
bus->power_warn_count++;
dump_stack();
@@ -898,12 +957,6 @@ static int ssb_pci_assert_buspower(struct ssb_bus *bus)
return -ENODEV;
}
-#else /* DEBUG */
-static inline int ssb_pci_assert_buspower(struct ssb_bus *bus)
-{
- return 0;
-}
-#endif /* DEBUG */
static u8 ssb_pci_read8(struct ssb_device *dev, u16 offset)
{
@@ -962,15 +1015,15 @@ static void ssb_pci_block_read(struct ssb_device *dev, void *buffer,
ioread8_rep(addr, buffer, count);
break;
case sizeof(u16):
- SSB_WARN_ON(count & 1);
+ WARN_ON(count & 1);
ioread16_rep(addr, buffer, count >> 1);
break;
case sizeof(u32):
- SSB_WARN_ON(count & 3);
+ WARN_ON(count & 3);
ioread32_rep(addr, buffer, count >> 2);
break;
default:
- SSB_WARN_ON(1);
+ WARN_ON(1);
}
return;
@@ -1036,15 +1089,15 @@ static void ssb_pci_block_write(struct ssb_device *dev, const void *buffer,
iowrite8_rep(addr, buffer, count);
break;
case sizeof(u16):
- SSB_WARN_ON(count & 1);
+ WARN_ON(count & 1);
iowrite16_rep(addr, buffer, count >> 1);
break;
case sizeof(u32):
- SSB_WARN_ON(count & 3);
+ WARN_ON(count & 3);
iowrite32_rep(addr, buffer, count >> 2);
break;
default:
- SSB_WARN_ON(1);
+ WARN_ON(1);
}
}
#endif /* CONFIG_SSB_BLOCKIO */
@@ -1063,9 +1116,9 @@ const struct ssb_bus_ops ssb_pci_ops = {
#endif
};
-static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t ssb_sprom_show(struct device *pcidev,
+ struct device_attribute *attr,
+ char *buf)
{
struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
struct ssb_bus *bus;
@@ -1077,9 +1130,9 @@ static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev,
return ssb_attr_sprom_show(bus, buf, sprom_do_read);
}
-static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t ssb_sprom_store(struct device *pcidev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
struct ssb_bus *bus;
@@ -1092,9 +1145,7 @@ static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev,
sprom_check_crc, sprom_do_write);
}
-static DEVICE_ATTR(ssb_sprom, 0600,
- ssb_pci_attr_sprom_show,
- ssb_pci_attr_sprom_store);
+static DEVICE_ATTR_ADMIN_RW(ssb_sprom);
void ssb_pci_exit(struct ssb_bus *bus)
{
@@ -1110,17 +1161,12 @@ void ssb_pci_exit(struct ssb_bus *bus)
int ssb_pci_init(struct ssb_bus *bus)
{
struct pci_dev *pdev;
- int err;
if (bus->bustype != SSB_BUSTYPE_PCI)
return 0;
pdev = bus->host_pci;
mutex_init(&bus->sprom_mutex);
- err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom);
- if (err)
- goto out;
-out:
- return err;
+ return device_create_file(&pdev->dev, &dev_attr_ssb_sprom);
}
generated by cgit (git 2.34.1) at 2025-12-21 21:47:53 +0000